* Patches by Denis Peter, 9 Sep 2003:

  add FAT support for IDE, SCSI and USB

* Patches by Gleb Natapov, 2 Sep 2003:
  - cleanup of POST code for unsupported architectures
  - MPC824x locks way0 of data cache for use as initial RAM;
    this patch unlocks it after relocation to RAM and invalidates
    the locked entries.

* Patch by Gleb Natapov, 30 Aug 2003:
  new I2C driver for mpc107 bridge. Now works from flash.

* Patch by Dave Ellis, 11 Aug 2003:
  - JFFS2: fix typo in common/cmd_jffs2.c
  - JFFS2: fix CFG_JFFS2_SORT_FRAGMENTS option
  - JFFS2: remove node version 0 warning
  - JFFS2: accept JFFS2 PADDING nodes
  - SXNI855T: add AM29LV800 support
  - SXNI855T: move environment from EEPROM to flash
  - SXNI855T: boot from JFFS2 in NOR or NAND flash

* Patch by Bill Hargen, 11 Aug 2003:
  fixes for I2C on MPC8240
  - fix i2c_write routine
  - fix iprobe command
  - eliminates use of global variables, plus dead code, cleanup.

CHANGELOG

@@ -2,6 +2,33 @@
 Changes for U-Boot 0.4.8:
 ======================================================================
 
+* Patches by Denis Peter, 9 Sep 2003:
+  add FAT support for IDE, SCSI and USB
+
+* Patches by Gleb Natapov, 2 Sep 2003:
+  - cleanup of POST code for unsupported architectures
+  - MPC824x locks way0 of data cache for use as initial RAM;
+    this patch unlocks it after relocation to RAM and invalidates
+    the locked entries.
+
+* Patch by Gleb Natapov, 30 Aug 2003:
+  new I2C driver for mpc107 bridge. Now works from flash.
+
+* Patch by Dave Ellis, 11 Aug 2003:
+  - JFFS2: fix typo in common/cmd_jffs2.c
+  - JFFS2: fix CFG_JFFS2_SORT_FRAGMENTS option
+  - JFFS2: remove node version 0 warning
+  - JFFS2: accept JFFS2 PADDING nodes
+  - SXNI855T: add AM29LV800 support
+  - SXNI855T: move environment from EEPROM to flash
+  - SXNI855T: boot from JFFS2 in NOR or NAND flash
+
+* Patch by Bill Hargen, 11 Aug 2003:
+  fixes for I2C on MPC8240
+  - fix i2c_write routine
+  - fix iprobe command
+  - eliminates use of global variables, plus dead code, cleanup.
+
 * Add support for USB Mass Storage Devices (BBB)
   (tested with USB memory sticks only)
 

CREDITS

@@ -302,3 +302,9 @@ W: www.elinos.com
 N: Pantelis Antoniou
 E: panto@intracom.gr
 D: NETVIA board support, ARTOS support.
+
+N: Raghu Krishnaprasad
+E: Raghu.Krishnaprasad@fci.com
+D: Support for Adder-II MPC852T evaluation board
+W: http://www.forcecomputers.com
+

MAINTAINERS

@@ -108,6 +108,10 @@ Dave Ellis <DGE@sixnetio.com>
 
 	SXNI855T		MPC8xx
 
+Raghu Krishnaprasad <raghu.krishnaprasad@fci.com>
+	
+	ADDERII			MPC852T
+
 Thomas Frieden <ThomasF@hyperion-entertainment.com>
 
 	AmigaOneG3SE		MPC7xx

board/mpl/common/common_util.c

@@ -375,138 +375,6 @@ void show_stdio_dev(void)
 	}
 }
 
-/* ------------------------------------------------------------------------- */
-
-	/* switches the cs0 and the cs1 to the locations.
-	   When boot is TRUE, the the mapping is switched
-	   to the boot configuration, If it is FALSE, the
-	   flash will be switched in the boot area */
-
-#undef SW_CS_DBG
-#ifdef SW_CS_DBG
-#define	SW_CS_PRINTF(fmt,args...)	printf (fmt ,##args)
-#else
-#define SW_CS_PRINTF(fmt,args...)
-#endif
-
-#if defined(CONFIG_PIP405) || defined(CONFIG_MIP405)
-int switch_cs(unsigned char boot)
-{
-	unsigned long pbcr;
-	int mode;
-
-	mode=get_boot_mode();
-	mtdcr(ebccfga, pb0cr);
-	pbcr = mfdcr (ebccfgd);
-	if (mode & BOOT_MPS) {
-		/* Boot width = 8 bit MPS Boot, set up MPS on CS0 */
-		/* we need only to switch if boot from MPS */
-		/* printf(" MPS boot mode detected. ");*/
-		/* printf("cs0 cfg: %lx\n",pbcr); */
-		if(boot) {
-			/* switch to boot configuration */
-			/* this is a 8bit boot, switch cs0 to flash location */
-			SW_CS_PRINTF("switch to boot mode (MPS on High address\n");
-			pbcr&=0x000FFFFF; /*mask base address of the cs0 */
-			pbcr|=(FLASH_BASE0_PRELIM & 0xFFF00000);
-			mtdcr(ebccfga, pb0cr);
-			mtdcr(ebccfgd, pbcr);
-			SW_CS_PRINTF("  new cs0 cfg: %lx\n",pbcr);
-			mtdcr(ebccfga, pb1cr); /* get cs1 config reg (flash) */
-			pbcr = mfdcr(ebccfgd);
-			SW_CS_PRINTF(" old cs1 cfg: %lx\n",pbcr);
-			pbcr&=0x000FFFFF; /*mask base address of the cs1 */
-			pbcr|=(MULTI_PURPOSE_SOCKET_ADDR & 0xFFF00000);
-			mtdcr(ebccfga, pb1cr);
-			mtdcr(ebccfgd, pbcr);
-			SW_CS_PRINTF("  new cs1 cfg: %lx, MPS is on High Address\n",pbcr);
-		}
-		else {
-			/* map flash to boot area, */
-			SW_CS_PRINTF("map Flash to boot area\n");
-			pbcr&=0x000FFFFF; /*mask base address of the cs0 */
-			pbcr|=(MULTI_PURPOSE_SOCKET_ADDR & 0xFFF00000);
-			mtdcr(ebccfga, pb0cr);
-			mtdcr(ebccfgd, pbcr);
-			SW_CS_PRINTF("  new cs0 cfg: %lx\n",pbcr);
-			mtdcr(ebccfga, pb1cr); /* get cs1 config reg (flash) */
-			pbcr = mfdcr(ebccfgd);
-			SW_CS_PRINTF("  cs1 cfg: %lx\n",pbcr);
-			pbcr&=0x000FFFFF; /*mask base address of the cs1 */
-			pbcr|=(FLASH_BASE0_PRELIM & 0xFFF00000);
-			mtdcr(ebccfga, pb1cr);
-			mtdcr(ebccfgd, pbcr);
-			SW_CS_PRINTF("  new cs1 cfg: %lx Flash is on High Address\n",pbcr);
-		}
-		return 1;
-	}
-	else {
-		SW_CS_PRINTF("Normal boot, no switching necessary\n");
-		return 0;
-	}
-
-}
-
-int get_boot_mode(void)
-{
-	unsigned long pbcr;
-	int res = 0;
-	pbcr = mfdcr (strap);
-	if ((pbcr & PSR_ROM_WIDTH_MASK) == 0)
-		/* boot via MPS or MPS mapping */
-		res = BOOT_MPS;
-	if(pbcr & PSR_ROM_LOC)
-		/* boot via PCI.. */
-		res |= BOOT_PCI;
-	 return res;
-}
-
-/* Setup cs0 parameter finally.
-   Map the flash high (in boot area)
-   This code can only be executed from SDRAM (after relocation).
-*/
-void setup_cs_reloc(void)
-{
-	unsigned long pbcr;
-	/* Since we are relocated, we can set-up the CS finaly
-	 * but first of all, switch off PCI mapping (in case it was a PCI boot) */
-	out32r(PMM0MA,0L);
-	icache_enable (); /* we are relocated */
-	/* for PCI Boot, we have to set-up the remaining CS correctly */
-	pbcr = mfdcr (strap);
-	if(pbcr & PSR_ROM_LOC) {
-		/* boot via PCI.. */
-		if ((pbcr & PSR_ROM_WIDTH_MASK) == 0) {
-		/* Boot width = 8 bit MPS Boot, set up MPS on CS0 */
-			#ifdef DEBUG
-			printf("Mapping MPS to CS0 @ 0x%lx\n",(MPS_CR_B & 0xfff00000));
-			#endif
-			mtdcr (ebccfga, pb0ap);
-			mtdcr (ebccfgd, MPS_AP);
-			mtdcr (ebccfga, pb0cr);
-			mtdcr (ebccfgd, MPS_CR_B);
-		}
-		else {
-			/* Flash boot, set up the Flash on CS0 */
-			#ifdef DEBUG
-			printf("Mapping Flash to CS0 @ 0x%lx\n",(FLASH_CR_B & 0xfff00000));
-			#endif
-			mtdcr (ebccfga, pb0ap);
-			mtdcr (ebccfgd, FLASH_AP);
-			mtdcr (ebccfga, pb0cr);
-			mtdcr (ebccfgd, FLASH_CR_B);
-		}
-	}
-	switch_cs(0); /* map Flash High */
-}
-
-
-#elif defined(CONFIG_VCMA9)
-int switch_cs(unsigned char boot)
-{
-    return 0;
-}
-#endif /* CONFIG_VCMA9 */
 
 int do_mplcommon(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 {
@@ -625,6 +493,7 @@ void doc_init (void)
 
 #ifdef CONFIG_CONSOLE_EXTRA_INFO
 extern GraphicDevice ctfb;
+extern int get_boot_mode(void);
 
 void video_get_info_str (int line_number, char *info)
 {

board/mpl/common/common_util.h

@@ -31,10 +31,8 @@ typedef struct {
 } backup_t;
 
 void get_backup_values(backup_t *buf);
-int switch_cs(unsigned char boot);
+
 #if defined(CONFIG_PIP405) || defined(CONFIG_MIP405)
-int get_boot_mode(void);
-void setup_cs_reloc(void);
 #define BOOT_MPS	0x01
 #define BOOT_PCI	0x02
 #endif

board/mpl/common/flash.c

@@ -39,6 +39,13 @@
 #include <ppc4xx.h>
 #include <asm/processor.h>
 #include "common_util.h"
+#if defined(CONFIG_MIP405)
+#include "../mip405/mip405.h"
+#endif
+#if defined(CONFIG_PIP405)
+#include "../pip405/pip405.h"
+#endif
+#include <405gp_pci.h>
 
 flash_info_t	flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips	*/
 /*-----------------------------------------------------------------------
@@ -66,23 +73,102 @@ void unlock_intel_sectors(flash_info_t *info,ulong addr,ulong cnt);
 #define TRUE            1
 
 /*-----------------------------------------------------------------------
+ * Some CS switching routines:
+ *
+ * On PIP/MIP405 we have 3 (4) possible boot mode
+ *
+ * - Boot from Flash (Flash CS = CS0, MPS CS = CS1)
+ * - Boot from MPS   (Flash CS = CS1, MPS CS = CS0)
+ * - Boot from PCI with Flash map (Flash CS = CS0, MPS CS = CS1)
+ * - Boot from PCI with MPS map   (Flash CS = CS1, MPS CS = CS0)
+ * The flash init is the first board specific routine which is called
+ * after code relocation (running from SDRAM)
+ * The first thing we do is to map the Flash CS to the Flash area and
+ * the MPS CS to the MPS area. Since the flash size is unknown at this
+ * point, we use the max flash size and the lowest flash address as base.
+ * 
+ * After flash detection we adjust the size of the CS area accordingly.
+ * The board_init_r will fill in wrong values in the board init structure,
+ * but this will be fixed in the misc_init_r routine:
+ * bd->bi_flashstart=0-flash_info[0].size
+ * bd->bi_flashsize=flash_info[0].size-CFG_MONITOR_LEN
+ * bd->bi_flashoffset=0
+ * 
  */
+int get_boot_mode(void)
+{
+	unsigned long pbcr;
+	int res = 0;
+	pbcr = mfdcr (strap);
+	if ((pbcr & PSR_ROM_WIDTH_MASK) == 0)
+		/* boot via MPS or MPS mapping */
+		res = BOOT_MPS;
+	if(pbcr & PSR_ROM_LOC)
+		/* boot via PCI.. */
+		res |= BOOT_PCI;
+	 return res;
+}
+
+/* Map the flash high (in boot area)
+   This code can only be executed from SDRAM (after relocation).
+*/
+void setup_cs_reloc(void)
+{
+	int mode;
+	/* Since we are relocated, we can set-up the CS finaly
+	 * but first of all, switch off PCI mapping (in case it was a PCI boot) */
+	out32r(PMM0MA,0L);
+	icache_enable (); /* we are relocated */
+	/* get boot mode */
+	mode=get_boot_mode();
+	/* we map the flash high in every case */
+	/* first findout on which cs the flash is */
+	if(mode & BOOT_MPS) {
+		/* map flash high on CS1 and MPS on CS0 */
+		mtdcr (ebccfga, pb0ap);
+		mtdcr (ebccfgd, MPS_AP);
+		mtdcr (ebccfga, pb0cr);
+		mtdcr (ebccfgd, MPS_CR);
+		/* we use the default values (max values) for the flash
+		 * because its real size is not yet known */
+		mtdcr (ebccfga, pb1ap);
+		mtdcr (ebccfgd, FLASH_AP);
+		mtdcr (ebccfga, pb1cr);
+		mtdcr (ebccfgd, FLASH_CR_B);
+	}
+	else {
+		/* map flash high on CS0 and MPS on CS1 */
+		mtdcr (ebccfga, pb1ap);
+		mtdcr (ebccfgd, MPS_AP);
+		mtdcr (ebccfga, pb1cr);
+		mtdcr (ebccfgd, MPS_CR);
+		/* we use the default values (max values) for the flash
+		 * because its real size is not yet known */
+		mtdcr (ebccfga, pb0ap);
+		mtdcr (ebccfgd, FLASH_AP);
+		mtdcr (ebccfga, pb0cr);
+		mtdcr (ebccfgd, FLASH_CR_B);
+	}
+}
+
 
 
 unsigned long flash_init (void)
 {
-	unsigned long size_b0, size_b1;
-	int i;
+	unsigned long size_b0, size_b1,flashcr;
+	int mode, i;
+	extern char version_string;
+	char *p=&version_string;
 
 	/* Since we are relocated, we can set-up the CS finally */
 	setup_cs_reloc();
 	/* get and display boot mode */
-	i=get_boot_mode();
-	if(i & BOOT_PCI)
-		printf("(PCI Boot %s Map) ",(i & BOOT_MPS) ?
+	mode=get_boot_mode();
+	if(mode & BOOT_PCI)
+		printf("(PCI Boot %s Map) ",(mode & BOOT_MPS) ?
 			"MPS" : "Flash");
 	else
-		printf("(%s Boot) ",(i & BOOT_MPS) ?
+		printf("(%s Boot) ",(mode & BOOT_MPS) ?
 			"MPS" : "Flash");
 	/* Init: no FLASHes known */
 	for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) {
@@ -91,7 +177,7 @@ unsigned long flash_init (void)
 
 	/* Static FLASH Bank configuration here - FIXME XXX */
 
-	size_b0 = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]);
+	size_b0 = flash_get_size((vu_long *)CFG_MONITOR_BASE, &flash_info[0]);
 
 	if (flash_info[0].flash_id == FLASH_UNKNOWN) {
 		printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
@@ -109,8 +195,31 @@ unsigned long flash_init (void)
 	flash_info[0].protect[flash_info[0].sector_count-1] = 1;
 	size_b1 = 0 ;
 	flash_info[0].size = size_b0;
+	/* set up flash cs according to the size */
+	if(mode & BOOT_MPS) {
+		/* flash is on CS1 */
+		mtdcr(ebccfga, pb1cr);
+		flashcr = mfdcr (ebccfgd);
+		/* we map the flash high in every case */
+		flashcr&=0x0001FFFF; /* mask out address bits */
+		flashcr|= ((0-flash_info[0].size) & 0xFFF00000); /* start addr */
+		flashcr|= (((flash_info[0].size >>21) & 0x07) << 17); /* size addr */
+		mtdcr(ebccfga, pb1cr);
+		mtdcr(ebccfgd, flashcr);
+	}
+	else {
+		/* flash is on CS0 */
+		mtdcr(ebccfga, pb0cr);
+		flashcr = mfdcr (ebccfgd);
+		/* we map the flash high in every case */
+		flashcr&=0x0001FFFF; /* mask out address bits */
+		flashcr|= ((0-flash_info[0].size) & 0xFFF00000); /* start addr */
+		flashcr|= (((flash_info[0].size >>21) & 0x07) << 17); /* size addr */
+		mtdcr(ebccfga, pb0cr);
+		mtdcr(ebccfgd, flashcr);
+	}
 #if 0
-	/* include this if you want to test if
+	/* enable this if you want to test if
 	   the relocation has be done ok.
 	   This will disable both Chipselects */
 	mtdcr (ebccfga, pb0cr);
@@ -119,6 +228,14 @@ unsigned long flash_init (void)
 	mtdcr (ebccfgd, 0L);
 	printf("CS0 & CS1 switched off for test\n");
 #endif
+	/* patch version_string */
+	for(i=0;i<0x100;i++) {
+		if(*p=='\n') {
+			*p=0;
+			break;
+		}
+		p++;
+	}
 	return (size_b0);
 }
 
@@ -171,6 +288,8 @@ void flash_print_info  (flash_info_t *info)
 				break;
 	case FLASH_INTEL320T:	printf ("TE28F320C3 (32 Mbit, top sector size)\n");
 				break;
+	case FLASH_AM640U:	printf ("AM29LV640U (64 Mbit, uniform sector size)\n");
+				break;
 	default:		printf ("Unknown Chip Type\n");
 				break;
 	}
@@ -211,7 +330,8 @@ void flash_print_info  (flash_info_t *info)
 
 
 /*-----------------------------------------------------------------------
- */
+ 
+*/
 
 /*
  * The following code cannot be run from FLASH!
@@ -220,7 +340,7 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
 {
 	short i;
 	FLASH_WORD_SIZE value;
-	ulong base = (ulong)addr;
+	ulong base;
 	volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *)addr;
 
 	/* Write auto select command: read Manufacturer ID */
@@ -250,7 +370,7 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
 		return (0);			/* no or unknown flash	*/
 	}
 	value = addr2[1];			/* device ID		*/
-	/*	printf("Device value %x\n",value); */
+	/*	printf("Device value %x\n",value); 		    */
 	switch (value) {
 	case (FLASH_WORD_SIZE)AMD_ID_F040B:
 		info->flash_id += FLASH_AM040;
@@ -292,12 +412,17 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
 		info->sector_count = 35;
 		info->size = 0x00200000;
 		break;				/* => 2 MB		*/
-#if 0	/* enable when device IDs are available */
 	case (FLASH_WORD_SIZE)AMD_ID_LV320T:
 		info->flash_id += FLASH_AM320T;
 		info->sector_count = 67;
 		info->size = 0x00400000;
 		break;				/* => 4 MB		*/
+	case (FLASH_WORD_SIZE)AMD_ID_LV640U:
+		info->flash_id += FLASH_AM640U;
+		info->sector_count = 128;
+		info->size = 0x00800000;
+		break;				/* => 8 MB		*/
+#if 0	/* enable when device IDs are available */
 
 	case (FLASH_WORD_SIZE)AMD_ID_LV320B:
 		info->flash_id += FLASH_AM320B;
@@ -328,10 +453,12 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
 		return (0);			/* => no or unknown flash */
 
 	}
-
+	/* base address calculation */
+	base=0-info->size;
 	/* set up sector start address table */
 	if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
-	     (info->flash_id  == FLASH_AM040)){
+	     (info->flash_id  == FLASH_AM040) ||
+	     (info->flash_id  == FLASH_AM640U)){
 		for (i = 0; i < info->sector_count; i++)
 			info->start[i] = base + (i * 0x00010000);
 	}

board/mpl/common/isa.c

@@ -32,7 +32,6 @@
 #include "kbd.h"
 #include "video.h"
 
-extern int drv_isa_kbd_init (void);
 
 #undef	ISA_DEBUG
 
@@ -49,6 +48,9 @@ extern int drv_isa_kbd_init (void);
 #define FALSE           0
 #endif
 
+#if defined(CONFIG_PIP405)
+
+extern int drv_isa_kbd_init (void);
 
 /* fdc (logical device 0) */
 const SIO_LOGDEV_TABLE sio_fdc[] = {
@@ -183,7 +185,7 @@ void isa_sio_setup(void)
 		close_cfg_super_IO(0x3F0);
 	}
 }
-
+#endif
 
 /******************************************************************************
  * IRQ Controller
@@ -202,7 +204,7 @@ static struct isa_irq_action isa_irqs[16];
 /*
  * This contains the irq mask for both 8259A irq controllers,
  */
-static unsigned int cached_irq_mask = 0xffff;
+static unsigned int cached_irq_mask = 0xfff9;
 
 #define cached_imr1	(unsigned char)cached_irq_mask
 #define cached_imr2	(unsigned char)(cached_irq_mask>>8)
@@ -387,19 +389,22 @@ int handle_isa_int(void)
 	isr2=in8(ISR_2);
 	isr1=in8(ISR_1);
 	irq=(unsigned char)irqack;
-	if((irq==7)&&((isr1&0x80)==0)) {
+	irq-=32;
+/*	if((irq==7)&&((isr1&0x80)==0)) {
 		PRINTF("IRQ7 detected but not in ISR\n");
 	}
 	else {
-		/* we should handle cascaded interrupts here also */
-		/* printf("ISA Irq %d\n",irq); */
-		isa_irqs[irq].count++;
-	if (isa_irqs[irq].handler != NULL)
-		(*isa_irqs[irq].handler)(isa_irqs[irq].arg);      /* call isr */
-	else
+*/		/* we should handle cascaded interrupts here also */
 	{
-	PRINTF ("bogus interrupt vector 0x%x\n", irq);
-	}
+/*		printf("ISA Irq %d\n",irq); */
+		isa_irqs[irq].count++;
+		if(irq!=2) { /* just swallow the cascade irq 2 */
+			if (isa_irqs[irq].handler != NULL)
+				(*isa_irqs[irq].handler)(isa_irqs[irq].arg);      /* call isr */
+			else {
+				PRINTF ("bogus interrupt vector 0x%x\n", irq);
+			}
+		}
 	}
 	/* issue EOI instruction to clear the IRQ */
 	mask_and_ack_8259A(irq);
@@ -413,13 +418,13 @@ int handle_isa_int(void)
 
 void isa_irq_install_handler(int vec, interrupt_handler_t *handler, void *arg)
 {
-  if (isa_irqs[vec].handler != NULL) {
-   printf ("ISA Interrupt vector %d: handler 0x%x replacing 0x%x\n",
-	   vec, (uint)handler, (uint)isa_irqs[vec].handler);
-  }
-  isa_irqs[vec].handler = handler;
-  isa_irqs[vec].arg     = arg;
-  enable_8259A_irq(vec);
+	if (isa_irqs[vec].handler != NULL) {
+		printf ("ISA Interrupt vector %d: handler 0x%x replacing 0x%x\n",
+			vec, (uint)handler, (uint)isa_irqs[vec].handler);
+	}
+	isa_irqs[vec].handler = handler;
+	isa_irqs[vec].arg     = arg;
+	enable_8259A_irq(vec);
 	PRINTF ("Install ISA IRQ %d ==> %p, @ %p mask=%04x\n", vec, handler, &isa_irqs[vec].handler,cached_irq_mask);
 
 }
@@ -427,9 +432,9 @@ void isa_irq_install_handler(int vec, interrupt_handler_t *handler, void *arg)
 void isa_irq_free_handler(int vec)
 {
 	disable_8259A_irq(vec);
-  isa_irqs[vec].handler = NULL;
-  isa_irqs[vec].arg     = NULL;
-	printf ("Free ISA IRQ %d mask=%04x\n", vec, cached_irq_mask);
+	isa_irqs[vec].handler = NULL;
+	isa_irqs[vec].arg     = NULL;
+	PRINTF ("Free ISA IRQ %d mask=%04x\n", vec, cached_irq_mask);
 
 }
 
@@ -448,16 +453,42 @@ void isa_init_irq_contr(void)
 	init_8259A();
 	out8(IMR_2,0xFF);
 }
+/*************************************************************************/
 
+void isa_show_irq(void)
+{
+	int vec;
+
+	printf ("\nISA Interrupt-Information:\n");
+	printf ("Nr  Routine   Arg       Count\n");
+
+	for (vec=0; vec<16; vec++) {
+		if (isa_irqs[vec].handler != NULL) {
+			printf ("%02d  %08lx  %08lx  %d\n",
+				vec,
+				(ulong)isa_irqs[vec].handler,
+				(ulong)isa_irqs[vec].arg,
+				isa_irqs[vec].count);
+		}
+	}
+}
+
+int isa_irq_get_count(int vec)
+{
+	return(isa_irqs[vec].count);
+}
 
 /******************************************************************
  * Init the ISA bus and devices.
  */
 
+#if defined(CONFIG_PIP405)
 
 int isa_init(void)
 {
 	isa_sio_setup();
+	isa_init_irq_contr();
 	drv_isa_kbd_init();
 	return 0;
 }
+#endif

board/mpl/common/isa.h

@@ -21,12 +21,12 @@
  * MA 02111-1307 USA
  */
 
-#ifndef _PIP405_ISA_H_
-#define _PIP405_ISA_H_
+#ifndef _ISA_H_
+#define _ISA_H_
 /* Super IO */
 #define SIO_CFG_PORT	0x3F0	/* Config Port Address */
 
-
+#if defined(CONFIG_PIP405)
 /* table fore SIO initialization */
 typedef struct {
 	const uchar index;
@@ -44,10 +44,14 @@ unsigned char read_cfg_super_IO(int address, unsigned char function, unsigned ch
 void write_cfg_super_IO(int address, unsigned char function, unsigned char regaddr, unsigned char data);
 void close_cfg_super_IO(int address);
 void isa_sio_setup(void);
-void isa_sio_setup(void);
+#endif
+
 void isa_irq_install_handler(int vec, interrupt_handler_t *handler, void *arg);
 void isa_irq_free_handler(int vec);
 int handle_isa_int(void);
+void isa_init_irq_contr(void);
+void isa_show_irq(void);
+int isa_irq_get_count(int vec);
 
 
 #endif

board/mpl/common/pci_parts.h

@@ -92,7 +92,7 @@ extern void pci_pip405_write_regs(struct pci_controller *,
 /* PIIX4 ISA Bridge Function 0 */
 static struct pci_pip405_config_entry piix4_isa_bridge_f0[] = {
 	{PCI_CFG_PIIX4_SERIRQ,	0xD0,		1}, /* enable Continous SERIRQ Pin */
-	{PCI_CFG_PIIX4_GENCFG,	0x00010041,	4}, /* enable SERIRQs, ISA, PNP	*/
+	{PCI_CFG_PIIX4_GENCFG,	0x00018041,	4}, /* enable SERIRQs, ISA, PNP, GPI11 */
 	{PCI_CFG_PIIX4_TOM,	0xFE,		1}, /* Top of Memory		*/
 	{PCI_CFG_PIIX4_XBCS,	0x02C4,		2}, /* disable all peri CS	*/
 	{PCI_CFG_PIIX4_RTCCFG,	0x21,		1}, /* enable RTC	   	*/
@@ -106,6 +106,7 @@ static struct pci_pip405_config_entry piix4_isa_bridge_f0[] = {
 
 /* PIIX4 IDE Controller Function 1 */
 static struct pci_pip405_config_entry piix4_ide_cntrl_f1[] = {
+	{PCI_CFG_PIIX4_BMIBA,	0x0001000,	4}, /* set BMI to a valid address */
 	{PCI_COMMAND,		0x0001,		2}, /* enable IO access 	*/
 #if !defined(CONFIG_MIP405T)
 	{PCI_CFG_PIIX4_IDETIM,	0x80008000,	4}, /* enable Both IDE channels	*/
@@ -129,10 +130,10 @@ static struct pci_pip405_config_entry piix4_usb_cntrl_f2[] = {
 
 /* PIIX4 Power Management Function 3 */
 static struct pci_pip405_config_entry piix4_pmm_cntrl_f3[] = {
-	{PCI_COMMAND,		0x0001,		2}, /* enable IO access 	*/
-	{PCI_CFG_PIIX4_PMAB,	0x00004000,	4}, /* set PMBA to "valid" value */
-	{PCI_CFG_PIIX4_PMMISC,	0x01,		1}, /* enable PMBA IO access	*/
+	{PCI_CFG_PIIX4_PMBA,	0x00004000,	4}, /* set PMBA to "valid" value */
 	{PCI_CFG_PIIX4_SMBBA,	0x00005000,	4}, /* set SMBBA to "valid" value */
+	{PCI_CFG_PIIX4_PMMISC,	0x01,		1}, /* enable PMBA IO access	*/
+	{PCI_COMMAND,		0x0001,		2}, /* enable IO access 	*/
 	{ }					    /* end of device table 	*/
 };
 /* PPC405 Dummy only used to prevent autosetup on this host bridge */

board/mpl/common/piix4_pci.h

@@ -143,7 +143,7 @@
 #define	PCI_CFG_PIIX4_LEGSUP	0xC0
 
 /* Function 3 Power Management */
-#define	PCI_CFG_PIIX4_PMAB		0x40
+#define	PCI_CFG_PIIX4_PMBA		0x40
 #define	PCI_CFG_PIIX4_CNTA		0x44
 #define	PCI_CFG_PIIX4_CNTB		0x48
 #define	PCI_CFG_PIIX4_GPICTL	0x4C

board/mpl/mip405/cmd_mip405.c

@@ -54,10 +54,13 @@ int do_mip405(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return (do_mplcommon(cmdtp, flag, argc, argv));
 }
 U_BOOT_CMD(
-	mip405,	6,	1,	do_mip405,
+	mip405,	8,	1,	do_mip405,
 	"mip405  - MIP405 specific Cmds\n",
 	"flash mem [SrcAddr] - updates U-Boot with image in memory\n"
 	"mip405 flash mps - updates U-Boot with image from MPS\n"
+	"mip405 info      - displays board information\n"
+	"mip405 led <on>  - switches LED on (on=1) or off (on=0)\n"
+	"mip405 mem [cnt] - Memory Test <cnt>-times, <cnt> = -1 loop forever\n"
 );
 
 /* ------------------------------------------------------------------------- */

board/mpl/mip405/init.S

@@ -87,19 +87,15 @@ ext_bus_cntlr_init:
 	mfdcr		r4,ebccfgd
 
 	andi.		r0, r4, 0x2000			/* mask out irrelevant bits */
-	beq			0f						/* jump if 8 bit bus width */
+	beq		0f				/* jump if 8 bit bus width */
 
-	/* setup 16 bit things (Flash Boot)
+	/* setup 16 bit things
    *-----------------------------------------------------------------------
    * Memory Bank 0 (16 Bit Flash) initialization
    *---------------------------------------------------------------------- */
 
 	addi    r4,0,pb0ap
 	mtdcr   ebccfga,r4
-/*	addis   r4,0,0xFF8F */
-/*	ori     r4,r4,0xFE80 */
-/*	addis   r4,0,0x9B01 */
-/*	ori     r4,r4,0x5480 */
 	addis   r4,0,(FLASH_AP_B)@h
 	ori     r4,r4,(FLASH_AP_B)@l
 	mtdcr   ebccfgd,r4
@@ -107,8 +103,6 @@ ext_bus_cntlr_init:
 	addi    r4,0,pb0cr
 	mtdcr   ebccfga,r4
 	/* BS=0x010(4MB),BU=0x3(R/W), */
-/*	addis   r4,0,((FLASH_BASE0_PRELIM & 0xFFF00000) | 0x00050000)@h */
-/*	ori     r4,r4,0xA000          / * BW=0x01(16 bits) */
 	addis   r4,0,(FLASH_CR_B)@h
 	ori     r4,r4,(FLASH_CR_B)@l
 	mtdcr   ebccfgd,r4
@@ -123,21 +117,13 @@ ext_bus_cntlr_init:
 	/* 0x7F8FFE80 slowest boot */
 	addi    r4,0,pb0ap
 	mtdcr   ebccfga,r4
-#if 0
-	addis   r4,0,0x9B01
-	ori     r4,r4,0x5480
-#else
 	addis   r4,0,(MPS_AP_B)@h
 	ori     r4,r4,(MPS_AP_B)@l
-#endif
 	mtdcr   ebccfgd,r4
 
 	addi    r4,0,pb0cr
 	mtdcr   ebccfga,r4
 	/* BS=0x010(4MB),BU=0x3(R/W), */
-/*	addis   r4,0,((FLASH_BASE0_PRELIM & 0xFFF00000) | 0x00050000)@h */
-/*	ori     r4,r4,0x8000          / * BW=0x0( 8 bits) */
-
 	addis   r4,0,(MPS_CR_B)@h
 	ori     r4,r4,(MPS_CR_B)@l
 
@@ -178,18 +164,18 @@ ext_bus_cntlr_init:
   ori     r4,r4,0x0000
   mtdcr   ebccfgd,r4
 
-	addi    r4,0,pb6cr
+  addi    r4,0,pb6cr
   mtdcr   ebccfga,r4
   addis   r4,0,0x0000
   ori     r4,r4,0x0000
   mtdcr   ebccfgd,r4
 
-	addi    r4,0,pb7cr
+  addi    r4,0,pb7cr
   mtdcr   ebccfga,r4
   addis   r4,0,0x0000
   ori     r4,r4,0x0000
   mtdcr   ebccfgd,r4
-	nop				/* pass2 DCR errata #8 */
+  nop				/* pass2 DCR errata #8 */
   blr
 
 /*-----------------------------------------------------------------------------

board/mpl/mip405/mip405.c

@@ -667,9 +667,16 @@ static int test_dram (unsigned long ramsize)
 /* used to check if the time in RTC is valid */
 static unsigned long start;
 static struct rtc_time tm;
+extern flash_info_t flash_info[];	/* info for FLASH chips */
 
 int misc_init_r (void)
 {
+	DECLARE_GLOBAL_DATA_PTR;
+	/* adjust flash start and size as well as the offset */
+	gd->bd->bi_flashstart=0-flash_info[0].size;
+	gd->bd->bi_flashsize=flash_info[0].size-CFG_MONITOR_LEN;
+	gd->bd->bi_flashoffset=0;
+
 	/* check, if RTC is running */
 	rtc_get (&tm);
 	start=get_timer(0);

board/mpl/mip405/mip405.h

@@ -137,13 +137,13 @@ void user_led0(unsigned char on);
 					(FLASH_WBF << 12) + (FLASH_TH << 9) + (FLASH_RE << 8) + (FLASH_SOR << 7) + (FLASH_BEM << 6) + (FLASH_PEN << 5))
 
 /* Size: 0=1MB, 1=2MB, 2=4MB, 3=8MB, 4=16MB, 5=32MB, 6=64MB, 7=128MB */
-#define FLASH_BS	2	/* 4 MByte */
+#define FLASH_BS	FLASH_SIZE_PRELIM	/* 4 MByte */
 /* Usage: 0=disabled, 1=Read only, 2=Write Only, 3=R/W */
 #define FLASH_BU	3	/* R/W */
 /* Bus width: 0=8Bit, 1=16Bit, 2=32Bit, 3=Reserved */
 #define FLASH_BW	1	/* 16Bit */
 /* CR register for Boot */
-#define FLASH_CR_B	((FLASH_BASE0_PRELIM & 0xfff00000) + (FLASH_BS << 17) + (FLASH_BU << 15) + (FLASH_BW << 13))
+#define FLASH_CR_B	((FLASH_BASE_PRELIM & 0xfff00000) + (FLASH_BS << 17) + (FLASH_BU << 15) + (FLASH_BW << 13))
 /* CR register for non Boot */
 #define FLASH_CR	((MULTI_PURPOSE_SOCKET_ADDR & 0xfff00000) + (FLASH_BS << 17) + (FLASH_BU << 15) + (FLASH_BW << 13))
 
@@ -172,11 +172,12 @@ void user_led0(unsigned char on);
 
 /* Size: 0=1MB, 1=2MB, 2=4MB, 3=8MB, 4=16MB, 5=32MB, 6=64MB, 7=128MB */
 #define MPS_BS		2	/* 4 MByte */
+#define MPS_BS_B		FLASH_SIZE_PRELIM	/* 1 MByte */
 /* Usage: 0=disabled, 1=Read only, 2=Write Only, 3=R/W */
 #define MPS_BU		3	/* R/W */
 /* Bus width: 0=8Bit, 1=16Bit, 2=32Bit, 3=Reserved */
 #define MPS_BW		0	/* 8Bit */
 /* CR register for Boot */
-#define MPS_CR_B	((FLASH_BASE0_PRELIM & 0xfff00000) + (MPS_BS << 17) + (MPS_BU << 15) + (MPS_BW << 13))
+#define MPS_CR_B	((FLASH_BASE_PRELIM & 0xfff00000) + (MPS_BS_B << 17) + (MPS_BU << 15) + (MPS_BW << 13))
 /* CR register for non Boot */
 #define MPS_CR		((MULTI_PURPOSE_SOCKET_ADDR & 0xfff00000) + (MPS_BS << 17) + (MPS_BU << 15) + (MPS_BW << 13))

board/mpl/pip405/init.S

@@ -41,17 +41,21 @@
 
 #define _LINUX_CONFIG_H 1	/* avoid reading Linux autoconf.h file	*/
 
-#include "configs/PIP405.h"
+#include <configs/PIP405.h>
 #include <ppc_asm.tmpl>
 #include <ppc_defs.h>
 
 #include <asm/cache.h>
 #include <asm/mmu.h>
+#include "pip405.h"
 
+  .globl ext_bus_cntlr_init
+ ext_bus_cntlr_init:
+  mflr   r4                      /* save link register */
+  mfdcr  r3,strap                /* get strapping reg */
+  andi.  r0, r3, PSR_ROM_LOC     /* mask out irrelevant bits */
+  bnelr                          /* jump back if PCI boot */
 
-	.globl	ext_bus_cntlr_init
-ext_bus_cntlr_init:
-  mflr    r4                      /* save link register */
   bl      ..getAddr
 ..getAddr:
   mflr    r3                      /* get address of ..getAddr */
@@ -82,7 +86,7 @@ ext_bus_cntlr_init:
 	mfdcr		r4,ebccfgd
 
 	andi.		r0, r4, 0x2000			/* mask out irrelevant bits */
-	beq			0f									/* jump if 8 bit bus width */
+	beq		0f				/* jump if 8 bit bus width */
 
 	/* setup 16 bit things
    *-----------------------------------------------------------------------
@@ -90,74 +94,49 @@ ext_bus_cntlr_init:
    *---------------------------------------------------------------------- */
 
 	addi    r4,0,pb0ap
-  mtdcr   ebccfga,r4
-  addis   r4,0,0x9B01
-  ori     r4,r4,0x5480
-  mtdcr   ebccfgd,r4
-
-  addi    r4,0,pb0cr
-  mtdcr   ebccfga,r4
-	/* BS=0x011(8MB),BU=0x3(R/W), */
-  addis   r4,0,((FLASH_BASE0_PRELIM & 0xFFF00000) | 0x00050000)@h
-  ori     r4,r4,0xA000          /* BW=0x01(16 bits) */
-  mtdcr   ebccfgd,r4
-
-  /*-----------------------------------------------------------------------
-   * Memory Bank 1 (Multi Purpose Socket) initialization
-   *----------------------------------------------------------------------*/
-  addi    r4,0,pb1ap
-  mtdcr   ebccfga,r4
-  addis   r4,0,0x0281
-  ori     r4,r4,0x5480
-  mtdcr   ebccfgd,r4
-
-  addi    r4,0,pb1cr
-  mtdcr   ebccfga,r4
-  /* BS=0x011(8MB),BU=0x3(R/W), */
-  addis   r4,0,((MULTI_PURPOSE_SOCKET_ADDR & 0xFFF00000) | 0x00050000)@h
-  ori     r4,r4,0x8000          /* BW=0x0( 8 bits) */
-  mtdcr   ebccfgd,r4
+	mtdcr   ebccfga,r4
+	addis   r4,0,(FLASH_AP_B)@h
+	ori     r4,r4,(FLASH_AP_B)@l
+	mtdcr   ebccfgd,r4
+
+	addi    r4,0,pb0cr
+	mtdcr   ebccfga,r4
+	/* BS=0x010(4MB),BU=0x3(R/W), */
+	addis   r4,0,(FLASH_CR_B)@h
+	ori     r4,r4,(FLASH_CR_B)@l
+	mtdcr   ebccfgd,r4
 	b				1f
 
 0:
-  /* 8Bit boot mode: */
+	/* 8Bit boot mode: */
 	/*-----------------------------------------------------------------------
-   * Memory Bank 0 Multi Purpose Socket initialization
-   *----------------------------------------------------------------------- */
-
+	* Memory Bank 0 Multi Purpose Socket initialization
+	*----------------------------------------------------------------------- */
+	/* 0x7F8FFE80 slowest boot */
 	addi    r4,0,pb0ap
-  mtdcr   ebccfga,r4
-  addis   r4,0,0x9B01
-  ori     r4,r4,0x5480
-  mtdcr   ebccfgd,r4
+	mtdcr   ebccfga,r4
+	addis   r4,0,(MPS_AP_B)@h
+	ori     r4,r4,(MPS_AP_B)@l
+	mtdcr   ebccfgd,r4
+
+	addi    r4,0,pb0cr
+	mtdcr   ebccfga,r4
+	/* BS=0x010(4MB),BU=0x3(R/W), */
+	addis   r4,0,(MPS_CR_B)@h
+	ori     r4,r4,(MPS_CR_B)@l
+	mtdcr   ebccfgd,r4
 
-  addi    r4,0,pb0cr
-  mtdcr   ebccfga,r4
-	/* BS=0x011(4MB),BU=0x3(R/W), */
-  addis   r4,0,((FLASH_BASE0_PRELIM & 0xFFF00000) | 0x00050000)@h
-  ori     r4,r4,0x8000          /* BW=0x0( 8 bits) */
-  mtdcr   ebccfgd,r4
 
+1:
   /*-----------------------------------------------------------------------
-   * Memory Bank 1 (Flash) initialization
+   * Memory Bank 2-3-4-5-6 (not used) initialization
    *-----------------------------------------------------------------------*/
-  addi    r4,0,pb1ap
-  mtdcr   ebccfga,r4
-  addis   r4,0,0x0281
-  ori     r4,r4,0x5480
-  mtdcr   ebccfgd,r4
-
   addi    r4,0,pb1cr
   mtdcr   ebccfga,r4
-  /* BS=0x011(8MB),BU=0x3(R/W), */
-  addis   r4,0,((MULTI_PURPOSE_SOCKET_ADDR & 0xFFF00000) | 0x00050000)@h
-  ori     r4,r4,0xA000          /* BW=0x0( 8 bits) */
+  addis   r4,0,0x0000
+  ori     r4,r4,0x0000
   mtdcr   ebccfgd,r4
 
-1:
-  /*-----------------------------------------------------------------------
-   * Memory Bank 2-3-4-5-6 (not used) initialization
-   *-----------------------------------------------------------------------*/
   addi    r4,0,pb2cr
   mtdcr   ebccfga,r4
   addis   r4,0,0x0000
@@ -182,28 +161,18 @@ ext_bus_cntlr_init:
   ori     r4,r4,0x0000
   mtdcr   ebccfgd,r4
 
-	addi    r4,0,pb6cr
+  addi    r4,0,pb6cr
   mtdcr   ebccfga,r4
   addis   r4,0,0x0000
   ori     r4,r4,0x0000
-  mtdcr   ebccfgd,r4
-
-	/*-----------------------------------------------------------------------
-   * Memory Bank 7 (Config Register) initialization
-   *----------------------------------------------------------------------- */
-  addi    r4,0,pb7ap
-  mtdcr   ebccfga,r4
-  addis   r4,0,0x0181	      /* Doc says TWT=3 and Openios TWT=3!! */
-  ori     r4,r4,0x5280          /* disable Ready, BEM=0 */
   mtdcr   ebccfgd,r4
 
   addi    r4,0,pb7cr
   mtdcr   ebccfga,r4
-	/* BS=0x0(1MB),BU=0x3(R/W), */
-  addis   r4,0,((CONFIG_PORT_ADDR & 0xFFF00000) | 0x00010000)@h
-  ori     r4,r4,0x8000            /* BW=0x0(8 bits) */
+  addis   r4,0,0x0000
+  ori     r4,r4,0x0000
   mtdcr   ebccfgd,r4
-	nop				/* pass2 DCR errata #8 */
+  nop				/* pass2 DCR errata #8 */
   blr
 
 /*-----------------------------------------------------------------------------
@@ -217,3 +186,45 @@ sdram_init:
 
 
   blr
+
+
+#if defined(CONFIG_BOOT_PCI)
+    .section .bootpg,"ax"
+    .globl _start_pci
+/*******************************************
+ */
+
+_start_pci:
+  /* first handle errata #68 / PCI_18 */
+  iccci   r0, r0          /* invalidate I-cache */
+  lis     r31, 0
+  mticcr  r31             /* ICCR = 0 (all uncachable) */
+  isync
+
+  mfccr0  r28             /* set CCR0[24] = 1 */
+  ori     r28, r28, 0x0080
+  mtccr0  r28
+
+  /* setup PMM0MA (0xEF400004) and PMM0PCIHA (0xEF40000C) */
+  lis     r28, 0xEF40
+  addi    r28, r28, 0x0004
+  stw     r31, 0x0C(r28)  /* clear PMM0PCIHA */
+  lis     r29, 0xFFF8     /* open 512 kByte */
+  addi    r29, r29, 0x0001/* and enable this region */
+  stwbrx  r29, r0, r28    /* write PMM0MA */
+
+  lis     r28, 0xEEC0     /* address of PCIC0_CFGADDR */
+  addi    r29, r28, 4     /* add 4 to r29 -> PCIC0_CFGDATA */
+
+  lis     r31, 0x8000     /* set en bit bus 0 */
+  ori     r31, r31, 0x304C/* device 6 func 0 reg 4C (XBCS register) */
+  stwbrx  r31, r0, r28    /* write it */
+
+  lwbrx   r31, r0, r29    /* load XBCS register */
+  oris    r31, r31, 0x02C4/* clear BIOSCS WPE, set lower, extended and 1M extended BIOS enable */
+  stwbrx  r31, r0, r29    /* write back XBCS register */
+
+  nop
+  nop
+  b	_start		/* normal start */
+#endif

board/mpl/pip405/pip405.c

@@ -194,6 +194,11 @@ int board_pre_init (void)
 #ifdef SDRAM_DEBUG
 	DECLARE_GLOBAL_DATA_PTR;
 #endif
+	/* set up the config port */
+	mtdcr (ebccfga, pb7ap);
+	mtdcr (ebccfgd, CONFIG_PORT_AP);
+	mtdcr (ebccfga, pb7cr);
+	mtdcr (ebccfgd, CONFIG_PORT_CR);
 
 	memclk = get_bus_freq (tmemclk);
 	tmemclk = 1000000000 / (memclk / 100);	/* in 10 ps units */
@@ -657,8 +662,20 @@ static int test_dram (unsigned long ramsize)
 }
 
 
+extern flash_info_t flash_info[];	/* info for FLASH chips */
+
 int misc_init_r (void)
 {
+	DECLARE_GLOBAL_DATA_PTR;
+	/* adjust flash start and size as well as the offset */
+	gd->bd->bi_flashstart=0-flash_info[0].size;
+	gd->bd->bi_flashsize=flash_info[0].size-CFG_MONITOR_LEN;
+	gd->bd->bi_flashoffset=0;
+
+	/* if PIP405 has booted from PCI, reset CCR0[24] as described in errata PCI_18 */
+	if (mfdcr(strap) & PSR_ROM_LOC)
+	       mtspr(ccr0, (mfspr(ccr0) & ~0x80));
+
 	return (0);
 }
 

board/mpl/pip405/pip405.h

@@ -25,6 +25,7 @@
  * Global routines used for PIP405
  *****************************************************************************/
 
+#ifndef __ASSEMBLY__
 
 extern int  mem_test(unsigned long start, unsigned long ramsize,int mode);
 
@@ -35,13 +36,13 @@ void user_led1(unsigned char on);
 
 
 #define PLD_BASE_ADDRESS		CFG_ISA_IO_BASE_ADDRESS + 0x800
-#define PLD_PART_REG				PLD_BASE_ADDRESS + 0
-#define PLD_VERS_REG				PLD_BASE_ADDRESS + 1
+#define PLD_PART_REG			PLD_BASE_ADDRESS + 0
+#define PLD_VERS_REG			PLD_BASE_ADDRESS + 1
 #define PLD_BOARD_CFG_REG		PLD_BASE_ADDRESS + 2
 #define PLD_LED_USER_REG		PLD_BASE_ADDRESS + 3
 #define PLD_SYS_MAN_REG			PLD_BASE_ADDRESS + 4
 #define PLD_FLASH_COM_REG		PLD_BASE_ADDRESS + 5
-#define PLD_CAN_REG					PLD_BASE_ADDRESS + 6
+#define PLD_CAN_REG			PLD_BASE_ADDRESS + 6
 #define PLD_SER_PWR_REG			PLD_BASE_ADDRESS + 7
 #define PLD_COM_PWR_REG			PLD_BASE_ADDRESS + 8
 #define PLD_NIC_VGA_REG			PLD_BASE_ADDRESS + 9
@@ -50,86 +51,32 @@ void user_led1(unsigned char on);
 #define PIIX4_VENDOR_ID			0x8086
 #define PIIX4_IDE_DEV_ID		0x7111
 
+#endif
 
 /* timings */
-/* PLD (CS7) */
-#define PLD_BME	0 	/* Burst disable */
-#define PLD_TWE	5	/* 5 * 30ns 120ns Waitstates (access=TWT+1+TH) */
-#define PLD_CSN	1	/* Chipselect is driven inactive for 1 Cycle BTW transfers */
-#define PLD_OEN	1	/* Cycles from CS low to OE low   */
-#define PLD_WBN	1	/* Cycles from CS low to WE low   */
-#define PLD_WBF	1	/* Cycles from WE high to CS high */
-#define PLD_TH	2	/* Number of hold cycles after transfer */
-#define PLD_RE	0	/* Ready disabled */
-#define PLD_SOR	1	/* Sample on Ready disabled */
-#define PLD_BEM	0	/* Byte Write only active on Write cycles */
-#define PLD_PEN	0	/* Parity disable */
-#define PLD_AP 	((PLD_BME << 31) + (PLD_TWE << 23) + (PLD_CSN << 18) + (PLD_OEN << 16) + (PLD_WBN << 14) + \
-					(PLD_WBF << 12) + (PLD_TH << 9) + (PLD_RE << 8) + (PLD_SOR << 7) + (PLD_BEM << 6) + (PLD_PEN << 5))
-
-/* Size: 0=1MB, 1=2MB, 2=4MB, 3=8MB, 4=16MB, 5=32MB, 6=64MB, 7=128MB */
-#define PLD_BS	0	/* 1 MByte */
-/* Usage: 0=disabled, 1=Read only, 2=Write Only, 3=R/W */
-#define PLD_BU	3	/* R/W */
-/* Bus width: 0=8Bit, 1=16Bit, 2=32Bit, 3=Reserved */
-#define PLD_BW	0	/* 16Bit */
-#define PLD_CR	((PER_PLD_ADDR & 0xfff00000) + (PLD_BS << 17) + (PLD_BU << 15) + (PLD_BW << 13))
 
-
-/* timings */
-
-#define PER_BOARD_ADDR (PER_UART1_ADDR+(1024*1024))
-/* Dummy CS to get the board revision */
-#define BOARD_BME	0 	/* Burst disable */
-#define BOARD_TWE	255	/* 255 * 30ns 120ns Waitstates (access=TWT+1+TH) */
-#define BOARD_CSN	1	/* Chipselect is driven inactive for 1 Cycle BTW transfers */
-#define BOARD_OEN	1	/* Cycles from CS low to OE low   */
-#define BOARD_WBN	1	/* Cycles from CS low to WE low   */
-#define BOARD_WBF	1	/* Cycles from WE high to CS high */
-#define BOARD_TH	2	/* Number of hold cycles after transfer */
-#define BOARD_RE	0	/* Ready disabled */
-#define BOARD_SOR	1	/* Sample on Ready disabled */
-#define BOARD_BEM	0	/* Byte Write only active on Write cycles */
-#define BOARD_PEN	0	/* Parity disable */
-#define BOARD_AP 	((BOARD_BME << 31) + (BOARD_TWE << 23) + (BOARD_CSN << 18) + (BOARD_OEN << 16) + (BOARD_WBN << 14) + \
-					(BOARD_WBF << 12) + (BOARD_TH << 9) + (BOARD_RE << 8) + (BOARD_SOR << 7) + (BOARD_BEM << 6) + (BOARD_PEN << 5))
+/* CS Config register (CS7) */
+#define CONFIG_PORT_BME	0 	/* Burst disable */
+#define CONFIG_PORT_TWE	255	/* 255 * 30ns 120ns Waitstates (access=TWT+1+TH) */
+#define CONFIG_PORT_CSN	1	/* Chipselect is driven inactive for 1 Cycle BTW transfers */
+#define CONFIG_PORT_OEN	1	/* Cycles from CS low to OE low   */
+#define CONFIG_PORT_WBN	1	/* Cycles from CS low to WE low   */
+#define CONFIG_PORT_WBF	1	/* Cycles from WE high to CS high */
+#define CONFIG_PORT_TH	2	/* Number of hold cycles after transfer */
+#define CONFIG_PORT_RE	0	/* Ready disabled */
+#define CONFIG_PORT_SOR	1	/* Sample on Ready disabled */
+#define CONFIG_PORT_BEM	0	/* Byte Write only active on Write cycles */
+#define CONFIG_PORT_PEN	0	/* Parity disable */
+#define CONFIG_PORT_AP 	((CONFIG_PORT_BME << 31) + (CONFIG_PORT_TWE << 23) + (CONFIG_PORT_CSN << 18) + (CONFIG_PORT_OEN << 16) + (CONFIG_PORT_WBN << 14) + \
+				(CONFIG_PORT_WBF << 12) + (CONFIG_PORT_TH << 9) + (CONFIG_PORT_RE << 8) + (CONFIG_PORT_SOR << 7) + (CONFIG_PORT_BEM << 6) + (CONFIG_PORT_PEN << 5))
 
 /* Size: 0=1MB, 1=2MB, 2=4MB, 3=8MB, 4=16MB, 5=32MB, 6=64MB, 7=128MB */
-#define BOARD_BS	0	/* 1 MByte */
+#define CONFIG_PORT_BS	0	/* 1 MByte */
 /* Usage: 0=disabled, 1=Read only, 2=Write Only, 3=R/W */
-#define BOARD_BU	3	/* R/W */
+#define CONFIG_PORT_BU	3	/* R/W */
 /* Bus width: 0=8Bit, 1=16Bit, 2=32Bit, 3=Reserved */
-#define BOARD_BW	0	/* 16Bit */
-#define BOARD_CR	((PER_BOARD_ADDR & 0xfff00000) + (BOARD_BS << 17) + (BOARD_BU << 15) + (BOARD_BW << 13))
-
-
-/* UART0 CS2 */
-#define UART0_BME	0 	/* Burst disable */
-#define UART0_TWE	7	/* 7 * 30ns 210ns Waitstates (access=TWT+1+TH) */
-#define UART0_CSN	1	/* Chipselect is driven inactive for 1 Cycle BTW transfers */
-#define UART0_OEN	1	/* Cycles from CS low to OE low   */
-#define UART0_WBN	1	/* Cycles from CS low to WE low   */
-#define UART0_WBF	1	/* Cycles from WE high to CS high */
-#define UART0_TH	2	/* Number of hold cycles after transfer */
-#define UART0_RE	0	/* Ready disabled */
-#define UART0_SOR	1	/* Sample on Ready disabled */
-#define UART0_BEM	0	/* Byte Write only active on Write cycles */
-#define UART0_PEN	0	/* Parity disable */
-#define UART0_AP 	((UART0_BME << 31) + (UART0_TWE << 23) + (UART0_CSN << 18) + (UART0_OEN << 16) + (UART0_WBN << 14) + \
-					(UART0_WBF << 12) + (UART0_TH << 9) + (UART0_RE << 8) + (UART0_SOR << 7) + (UART0_BEM << 6) + (UART0_PEN << 5))
-
-/* Size: 0=1MB, 1=2MB, 2=4MB, 3=8MB, 4=16MB, 5=32MB, 6=64MB, 7=128MB */
-#define UART0_BS	0	/* 1 MByte */
-/* Usage: 0=disabled, 1=Read only, 2=Write Only, 3=R/W */
-#define UART0_BU	3	/* R/W */
-/* Bus width: 0=8Bit, 1=16Bit, 2=32Bit, 3=Reserved */
-#define UART0_BW	0	/* 8Bit */
-#define UART0_CR	((PER_UART0_ADDR & 0xfff00000) + (UART0_BS << 17) + (UART0_BU << 15) + (UART0_BW << 13))
-
-/* UART1 CS3 */
-#define UART1_AP UART0_AP /* same timing as UART0 */
-#define UART1_CR	((PER_UART1_ADDR & 0xfff00000) + (UART0_BS << 17) + (UART0_BU << 15) + (UART0_BW << 13))
-
+#define CONFIG_PORT_BW	0	/* 16Bit */
+#define CONFIG_PORT_CR	((CONFIG_PORT_ADDR & 0xfff00000) + (CONFIG_PORT_BS << 17) + (CONFIG_PORT_BU << 15) + (CONFIG_PORT_BW << 13))
 
 /* Flash CS0 or CS 1 */
 /* 0x7F8FFE80 slowest timing at all... */
@@ -149,19 +96,19 @@ void user_led1(unsigned char on);
 #define FLASH_PEN	0	/* Parity disable */
 /* Access Parameter Register for non Boot */
 #define FLASH_AP 	((FLASH_BME << 31) + (FLASH_TWE << 23) + (FLASH_CSN << 18) + (FLASH_OEN << 16) + (FLASH_WBN << 14) + \
-					(FLASH_WBF << 12) + (FLASH_TH << 9) + (FLASH_RE << 8) + (FLASH_SOR << 7) + (FLASH_BEM << 6) + (FLASH_PEN << 5))
+				(FLASH_WBF << 12) + (FLASH_TH << 9) + (FLASH_RE << 8) + (FLASH_SOR << 7) + (FLASH_BEM << 6) + (FLASH_PEN << 5))
 /* Access Parameter Register for Boot */
 #define FLASH_AP_B 	((FLASH_BME_B << 31) + (FLASH_FWT_B << 26) + (FLASH_BWT_B << 23) + (FLASH_CSN << 18) + (FLASH_OEN << 16) + (FLASH_WBN << 14) + \
-					(FLASH_WBF << 12) + (FLASH_TH << 9) + (FLASH_RE << 8) + (FLASH_SOR << 7) + (FLASH_BEM << 6) + (FLASH_PEN << 5))
+				(FLASH_WBF << 12) + (FLASH_TH << 9) + (FLASH_RE << 8) + (FLASH_SOR << 7) + (FLASH_BEM << 6) + (FLASH_PEN << 5))
 
 /* Size: 0=1MB, 1=2MB, 2=4MB, 3=8MB, 4=16MB, 5=32MB, 6=64MB, 7=128MB */
-#define FLASH_BS	2	/* 4 MByte */
+#define FLASH_BS	FLASH_SIZE_PRELIM	/* 4 MByte */
 /* Usage: 0=disabled, 1=Read only, 2=Write Only, 3=R/W */
 #define FLASH_BU	3	/* R/W */
 /* Bus width: 0=8Bit, 1=16Bit, 2=32Bit, 3=Reserved */
 #define FLASH_BW	1	/* 16Bit */
 /* CR register for Boot */
-#define FLASH_CR_B	((FLASH_BASE0_PRELIM & 0xfff00000) + (FLASH_BS << 17) + (FLASH_BU << 15) + (FLASH_BW << 13))
+#define FLASH_CR_B	((FLASH_BASE_PRELIM & 0xfff00000) + (FLASH_BS << 17) + (FLASH_BU << 15) + (FLASH_BW << 13))
 /* CR register for non Boot */
 #define FLASH_CR	((MULTI_PURPOSE_SOCKET_ADDR & 0xfff00000) + (FLASH_BS << 17) + (FLASH_BU << 15) + (FLASH_BW << 13))
 
@@ -183,18 +130,19 @@ void user_led1(unsigned char on);
 #define MPS_PEN		0	/* Parity disable */
 /* Access Parameter Register for non Boot */
 #define MPS_AP 		((MPS_BME << 31) + (MPS_TWE << 23) + (MPS_CSN << 18) + (MPS_OEN << 16) + (MPS_WBN << 14) + \
-					(MPS_WBF << 12) + (MPS_TH << 9) + (MPS_RE << 8) + (MPS_SOR << 7) + (MPS_BEM << 6) + (MPS_PEN << 5))
+				(MPS_WBF << 12) + (MPS_TH << 9) + (MPS_RE << 8) + (MPS_SOR << 7) + (MPS_BEM << 6) + (MPS_PEN << 5))
 /* Access Parameter Register for Boot */
-#define MPS_AP_B 		((MPS_BME_B << 31) + (MPS_FWT_B << 26) + (MPS_BWT_B << 23) + (MPS_CSN << 18) + (MPS_OEN << 16) + (MPS_WBN << 14) + \
-					(MPS_WBF << 12) + (MPS_TH << 9) + (MPS_RE << 8) + (MPS_SOR << 7) + (MPS_BEM << 6) + (MPS_PEN << 5))
+#define MPS_AP_B 	((MPS_BME_B << 31) + (MPS_FWT_B << 26) + (MPS_BWT_B << 23) + (MPS_CSN << 18) + (MPS_OEN << 16) + (MPS_WBN << 14) + \
+				(MPS_WBF << 12) + (MPS_TH << 9) + (MPS_RE << 8) + (MPS_SOR << 7) + (MPS_BEM << 6) + (MPS_PEN << 5))
 
 /* Size: 0=1MB, 1=2MB, 2=4MB, 3=8MB, 4=16MB, 5=32MB, 6=64MB, 7=128MB */
 #define MPS_BS		2	/* 4 MByte */
+#define MPS_BS_B		FLASH_SIZE_PRELIM	/* 1 MByte */
 /* Usage: 0=disabled, 1=Read only, 2=Write Only, 3=R/W */
 #define MPS_BU		3	/* R/W */
 /* Bus width: 0=8Bit, 1=16Bit, 2=32Bit, 3=Reserved */
 #define MPS_BW		0	/* 8Bit */
 /* CR register for Boot */
-#define MPS_CR_B	((FLASH_BASE0_PRELIM & 0xfff00000) + (MPS_BS << 17) + (MPS_BU << 15) + (MPS_BW << 13))
+#define MPS_CR_B	((FLASH_BASE_PRELIM & 0xfff00000) + (MPS_BS << 17) + (MPS_BU << 15) + (MPS_BW << 13))
 /* CR register for non Boot */
 #define MPS_CR		((MULTI_PURPOSE_SOCKET_ADDR & 0xfff00000) + (MPS_BS << 17) + (MPS_BU << 15) + (MPS_BW << 13))

board/sixnet/flash.c

@@ -23,6 +23,10 @@
 
 #include <common.h>
 #include <mpc8xx.h>
+/* environment.h defines the various CFG_ENV_... values in terms
+ * of whichever ones are given in the configuration file.
+ */
+#include <environment.h>
 
 flash_info_t	flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips	*/
 
@@ -104,6 +108,19 @@ unsigned long flash_init (void)
 		      &flash_info[0]);
 #endif
 
+#ifdef CFG_ENV_ADDR
+	flash_protect ( FLAG_PROTECT_SET,
+			CFG_ENV_ADDR,
+			CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[0]);
+#endif
+
+#ifdef CFG_ENV_ADDR_REDUND
+	flash_protect ( FLAG_PROTECT_SET,
+			CFG_ENV_ADDR_REDUND,
+			CFG_ENV_ADDR_REDUND + CFG_ENV_SIZE_REDUND - 1,
+			&flash_info[0]);
+#endif
+
 	return (size_b);
 }
 
@@ -154,6 +171,21 @@ static void flash_get_offsets (ulong base, flash_info_t *info)
 		for( i = 0; i < info->sector_count; i++ )
 			info->start[i] = base + (i * sect_size);
 	}
+	else if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_AMD
+		 && (info->flash_id & FLASH_TYPEMASK) == FLASH_AM800T) {
+
+		int sect_size;		/* number of bytes/sector */
+
+		sect_size = 0x00010000 * (sizeof(FPW)/2);
+
+		/* set up sector start address table (top boot sector type) */
+		for (i = 0; i < info->sector_count - 3; i++)
+			info->start[i] = base + (i * sect_size);
+		i = info->sector_count - 1;
+		info->start[i--] = base + (info->size - 0x00004000) * (sizeof(FPW)/2);
+		info->start[i--] = base + (info->size - 0x00006000) * (sizeof(FPW)/2);
+		info->start[i--] = base + (info->size - 0x00008000) * (sizeof(FPW)/2);
+	}
 }
 
 /*-----------------------------------------------------------------------
@@ -196,6 +228,9 @@ void flash_print_info (flash_info_t *info)
 	}
 
 	switch (info->flash_id & FLASH_TYPEMASK) {
+	case FLASH_AM800T:
+		fmt = "29LV800B%s (8 Mbit, %s)\n";
+		break;
 	case FLASH_AM640U:
 		fmt = "29LV641D (64 Mbit, uniform sectors)\n";
 		break;
@@ -295,6 +330,12 @@ ulong flash_get_size (FPWV *addr, flash_info_t *info)
 	/* Check 16 bits or 32 bits of ID so work on 32 or 16 bit bus. */
 	if (info->flash_id != FLASH_UNKNOWN) switch (addr[1]) {
 
+	case (FPW)AMD_ID_LV800T:
+		info->flash_id += FLASH_AM800T;
+		info->sector_count = 19;
+		info->size = 0x00100000 * (sizeof(FPW)/2);
+		break;				/* => 1 or 2 MiB	*/
+
 	case (FPW)AMD_ID_LV640U:	/* 29LV640 and 29LV641 have same ID */
 		info->flash_id += FLASH_AM640U;
 		info->sector_count = 128;
@@ -401,6 +442,7 @@ static void flash_sync_real_protect(flash_info_t *info)
 	break;
 
     case FLASH_AM640U:
+    case FLASH_AM800T:
     default:
 	/* no hardware protect that we support */
 	break;
@@ -438,6 +480,7 @@ int	flash_erase (flash_info_t *info, int s_first, int s_last)
 	case FLASH_28F320C3B:
 	case FLASH_28F640C3B:
 	case FLASH_AM640U:
+	case FLASH_AM800T:
 		break;
 	case FLASH_UNKNOWN:
 	default:
@@ -735,6 +778,7 @@ int flash_real_protect (flash_info_t * info, long sector, int prot)
 		break;
 
 	case FLASH_AM640U:
+	case FLASH_AM800T:
 	default:
 		/* no hardware protect that we support */
 		info->protect[sector] = prot;

board/sixnet/sixnet.c

@@ -24,6 +24,7 @@
 
 #include <common.h>
 #include <config.h>
+#include <jffs2/jffs2.h>
 #include <mpc8xx.h>
 #include <net.h>	/* for eth_init() */
 #include <rtc.h>
@@ -602,3 +603,70 @@ long int initdram(int board_type)
 
 	return (size_sdram);
 }
+
+#ifdef CFG_JFFS_CUSTOM_PART
+
+static struct part_info part;
+
+#define jffs2_block(i)	\
+	((struct jffs2_unknown_node*)(CFG_JFFS2_BASE + (i) * 65536))
+
+struct part_info* jffs2_part_info(int part_num)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+	bd_t *bd = gd->bd;
+	char* s;
+	int i;
+	int bootnor = 0;	/* assume booting from NAND flash */
+
+	if (part_num != 0)
+		return 0;	/* only support one partition */
+
+	if (part.usr_priv == (void*)1)
+		return &part;	/* already have part info */
+
+	memset(&part, 0, sizeof(part));
+
+	if (nand_dev_desc[0].ChipID == NAND_ChipID_UNKNOWN)
+		bootnor = 1;
+	else if (bd->bi_flashsize < 0x800000)
+		bootnor = 0;
+	else for (i = 0; !bootnor && i < 4; ++i) {
+		/* boot from NOR if JFFS2 info in any of
+		 * first 4 erase blocks
+		 */
+
+		if (jffs2_block(i)->magic == JFFS2_MAGIC_BITMASK)
+			bootnor = 1;
+	}
+
+	if (bootnor) {
+		/* no NAND flash or boot in NOR, use NOR flash */
+		part.offset = (unsigned char *)CFG_JFFS2_BASE;
+		part.size = CFG_JFFS2_SIZE;
+	}
+	else {
+		char readcmd[60];
+
+		/* boot info in NAND flash, get and use copy in RAM */
+
+		/* override info from environment if present */
+		s = getenv("fsaddr");
+		part.offset = s ? (void *)simple_strtoul(s, NULL, 16)
+				: (void *)CFG_JFFS2_RAMBASE;
+		s = getenv("fssize");
+		part.size = s ? simple_strtoul(s, NULL, 16)
+			      : CFG_JFFS2_RAMSIZE;
+
+		/* read from nand flash */
+		sprintf(readcmd, "nand read.jffs2 %x 0 %x",
+			(uint32_t)part.offset, part.size);
+		run_command(readcmd, 0);
+	}
+
+	part.erasesize = 0;	/* unused */
+	part.usr_priv=(void*)1;	/* ready */
+
+	return &part;
+}
+#endif /* ifdef CFG_JFFS_CUSTOM_PART */

common/cmd_doc.c

@@ -861,8 +861,13 @@ static int find_boot_record(struct NFTLrecord *nftl)
 		memcpy(mh, buf, sizeof(struct NFTLMediaHeader));
 
 		/* Do some sanity checks on it */
-		if (mh->UnitSizeFactor != 0xff) {
-			puts ("Sorry, we don't support UnitSizeFactor "
+		if (mh->UnitSizeFactor == 0) {
+#ifdef NFTL_DEBUG
+			puts ("UnitSizeFactor 0x00 detected.\n"
+			      "This violates the spec but we think we know what it means...\n");
+#endif
+		} else if (mh->UnitSizeFactor != 0xff) {
+			printf ("Sorry, we don't support UnitSizeFactor "
 			      "of != 1 yet.\n");
 			return -1;
 		}
@@ -950,6 +955,8 @@ static void DoC2k_init(struct DiskOnChip* this)
 
 	/* Ident all the chips present. */
 	DoC_ScanChips(this);
+	if ((!this->numchips) || (!this->chips))
+		return;
 
 	nftl = &this->nftl;
 

common/cmd_fat.c

@@ -36,76 +36,179 @@
 
 #include <fat.h>
 
-extern block_dev_desc_t *ide_get_dev (int dev);
+
+
+
+block_dev_desc_t *get_dev (char* ifname, int dev)
+{
+#if (CONFIG_COMMANDS & CFG_CMD_IDE)
+	if (strncmp(ifname,"ide",3)==0) {
+		extern block_dev_desc_t * ide_get_dev(int dev);
+		return(ide_get_dev(dev));
+	}
+#endif
+#if (CONFIG_COMMANDS & CFG_CMD_SCSI)
+	if (strncmp(ifname,"scsi",4)==0) {
+		extern block_dev_desc_t * scsi_get_dev(int dev);
+		return(scsi_get_dev(dev));
+	}
+#endif
+#if ((CONFIG_COMMANDS & CFG_CMD_USB) && defined(CONFIG_USB_STORAGE))
+	if (strncmp(ifname,"usb",3)==0) {
+		extern block_dev_desc_t * usb_stor_get_dev(int dev);
+		return(usb_stor_get_dev(dev));
+	}
+#endif
+#if defined(CONFIG_MMC)
+	if (strncmp(ifname,"mmc",3)==0) {
+		extern block_dev_desc_t *  mmc_get_dev(int dev);
+		return(mmc_get_dev(dev));
+	}
+#endif
+	return NULL;
+}
+
 
 int do_fat_fsload (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 {
 	long size;
 	unsigned long offset;
 	unsigned long count;
+	block_dev_desc_t *dev_desc=NULL;
+	int dev=0;
+	int part=1;
+	char *ep;
 
-	if (argc < 3) {
-		printf ("usage:fatload <filename> <addr> [bytes]\n");
+	if (argc < 5) {
+		printf ("usage: fatload <interface> <dev[:part]> <addr> <filename> [bytes]\n");
 		return (0);
 	}
-
-	offset = simple_strtoul (argv[2], NULL, 16);
-	if (argc == 4)
-		count = simple_strtoul (argv[3], NULL, 16);
+	dev = (int)simple_strtoul (argv[2], &ep, 16);
+	dev_desc=get_dev(argv[1],dev);
+	if (dev_desc==NULL) {
+		puts ("\n** Invalid boot device **\n");
+		return 1;
+	}
+	if (*ep) {
+		if (*ep != ':') {
+			puts ("\n** Invalid boot device, use `dev[:part]' **\n");
+			return 1;
+		}
+		part = (int)simple_strtoul(++ep, NULL, 16);
+	}
+	if (fat_register_device(dev_desc,part)!=0) {
+		printf ("\n** Unable to use %s %d:%d for fatload **\n",argv[1],dev,part);
+		return 1;
+	}
+	offset = simple_strtoul (argv[3], NULL, 16);
+	if (argc == 6)
+		count = simple_strtoul (argv[5], NULL, 16);
 	else
 		count = 0;
+	size = file_fat_read (argv[4], (unsigned char *) offset, count);
 
-	size = file_fat_read (argv[1], (unsigned char *) offset, count);
-
-	printf ("%ld bytes read\n", size);
+	if(size==-1)
+		printf("\n** Unable to read \"%s\" from %s %d:%d **\n",argv[4],argv[1],dev,part);
+	else
+		printf ("\n%ld bytes read\n", size);
 
 	return size;
 }
 
+
+
+
 U_BOOT_CMD(
-	fatload,	4,	0,	do_fat_fsload,
+	fatload,	6,	0,	do_fat_fsload,
 	"fatload - load binary file from a dos filesystem\n",
-	"[ off ] [ filename ]\n"
-	"    - load binary file from dos filesystem\n"
-	"      with offset 'off'\n"
+	"<interface> <dev[:part]>  <addr> <filename> [bytes]\n"
+	"    - load binary file 'filename' from 'dev' on 'interface'\n"
+	"      to address 'addr' from dos filesystem\n"
 );
 
 int do_fat_ls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 {
 	char *filename = "/";
 	int ret;
+	int dev=0;
+	int part=1;
+	char *ep;
+	block_dev_desc_t *dev_desc=NULL;
 
-	if (argc == 2)
-		ret = file_fat_ls (argv[1]);
+	if (argc < 3) {
+		printf ("usage: fatls <interface> <dev[:part]> [directory]\n");
+		return (0);
+	}
+	dev = (int)simple_strtoul (argv[2], &ep, 16);
+	dev_desc=get_dev(argv[1],dev);
+	if (dev_desc==NULL) {
+		puts ("\n** Invalid boot device **\n");
+		return 1;
+	}
+	if (*ep) {
+		if (*ep != ':') {
+			puts ("\n** Invalid boot device, use `dev[:part]' **\n");
+			return 1;
+		}
+		part = (int)simple_strtoul(++ep, NULL, 16);
+	}
+	if (fat_register_device(dev_desc,part)!=0) {
+		printf ("\n** Unable to use %s %d:%d for fatls **\n",argv[1],dev,part);
+		return 1;
+	}
+	if (argc == 4)
+		ret = file_fat_ls (argv[3]);
 	else
 		ret = file_fat_ls (filename);
 
+	if(ret!=0)
+		printf("No Fat FS detected\n");
 	return (ret);
 }
 
 U_BOOT_CMD(
-	fatls,	2,	1,	do_fat_ls,
+	fatls,	4,	1,	do_fat_ls,
 	"fatls   - list files in a directory (default /)\n",
-	"[ directory ]\n"
-	"    - list files in a directory\n"
+	"<interface> <dev[:part]> [directory]\n"
+	"    - list files from 'dev' on 'interface' in a 'directory'\n"
 );
 
 int do_fat_fsinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 {
-	int ret;
+	int dev=0;
+	int part=1;
+	char *ep;
+	block_dev_desc_t *dev_desc=NULL;
 
-	ret = 0;
-
-	printf ("FAT info: %d\n", file_fat_detectfs ());
-
-	return (ret);
+	if (argc < 2) {
+		printf ("usage: fatinfo <interface> <dev[:part]>\n");
+		return (0);
+	}
+	dev = (int)simple_strtoul (argv[2], &ep, 16);
+	dev_desc=get_dev(argv[1],dev);
+	if (dev_desc==NULL) {
+		puts ("\n** Invalid boot device **\n");
+		return 1;
+	}
+	if (*ep) {
+		if (*ep != ':') {
+			puts ("\n** Invalid boot device, use `dev[:part]' **\n");
+			return 1;
+		}
+		part = (int)simple_strtoul(++ep, NULL, 16);
+	}
+	if (fat_register_device(dev_desc,part)!=0) {
+		printf ("\n** Unable to use %s %d:%d for fatinfo **\n",argv[1],dev,part);
+		return 1;
+	}
+	return (file_fat_detectfs ());
 }
 
 U_BOOT_CMD(
-	fatinfo,	1,	1,	do_fat_fsinfo,
+	fatinfo,	3,	1,	do_fat_fsinfo,
 	"fatinfo - print information about filesystem\n",
-	"\n"
-	"    - print information about filesystem\n"
+	"<interface> <dev[:part]>\n"
+	"    - print information about filesystem from 'dev' on 'interface'\n"
 );
 
 #ifdef NOT_IMPLEMENTED_YET

common/cmd_jffs2.c

@@ -174,7 +174,7 @@ do_jffs2_chpart(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	}
 
 	if (jffs2_part_info(tmp_part)){
-		printf("Partiton changed to %d\n",tmp_part);
+		printf("Partition changed to %d\n",tmp_part);
 		part_num=tmp_part;
 		return 0;
 	}

cpu/mpc824x/Makefile

@@ -25,14 +25,14 @@ include $(TOPDIR)/config.mk
 
 LIB	= lib$(CPU).a
 
-START	= start.S drivers/i2c/i2c2.o
+START	= start.S
 OBJS	= traps.o cpu.o cpu_init.o interrupts.o speed.o \
-	  drivers/epic/epic1.o drivers/i2c/i2c1.o pci.o bedbug_603e.o
+	  drivers/epic/epic1.o drivers/i2c/i2c.o pci.o bedbug_603e.o
 
 all:	.depend $(START) $(LIB)
 
 $(LIB):	$(OBJS)
-	$(AR) crv $@ $(OBJS) drivers/i2c/i2c2.o
+	$(AR) crv $@ $(OBJS)
 
 bedbug_603e.c:
 	ln -s ../mpc8260/bedbug_603e.c bedbug_603e.c

cpu/mpc824x/drivers/i2c/Makefile

@@ -1,84 +0,0 @@
-##########################################################################
-#
-#       Copyright Motorola, Inc. 1997
-#       ALL RIGHTS RESERVED
-#
-#       You are hereby granted a copyright license to use, modify, and
-#       distribute the SOFTWARE so long as this entire notice is retained
-#       without alteration in any modified and/or redistributed versions,
-#       and that such modified versions are clearly identified as such.
-#       No licenses are granted by implication, estoppel or otherwise under
-#       any patents or trademarks of Motorola, Inc.
-#
-#       The SOFTWARE is provided on an "AS IS" basis and without warranty.
-#       To the maximum extent permitted by applicable law, MOTOROLA DISCLAIMS
-#       ALL WARRANTIES WHETHER EXPRESS OR IMPLIED, INCLUDING IMPLIED
-#       WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
-#       PURPOSE AND ANY WARRANTY AGAINST INFRINGEMENT WITH
-#       REGARD TO THE SOFTWARE (INCLUDING ANY MODIFIED VERSIONS
-#       THEREOF) AND ANY ACCOMPANYING WRITTEN MATERIALS.
-#
-#       To the maximum extent permitted by applicable law, IN NO EVENT SHALL
-#       MOTOROLA BE LIABLE FOR ANY DAMAGES WHATSOEVER
-#       (INCLUDING WITHOUT LIMITATION, DAMAGES FOR LOSS OF
-#       BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS
-#       INFORMATION, OR OTHER PECUNIARY LOSS) ARISING OF THE USE OR
-#       INABILITY TO USE THE SOFTWARE.
-#
-############################################################################
-TARGET = libi2c.a
-
-#DEBUG  = -g
-DEBUG   = -DI2CDBG
-LST     = -Hanno -S
-OPTIM   =
-CC      = /risc/tools/pkgs/metaware/bin/hcppc
-CFLAGS  = -Hnocopyr -c -Hsds -Hon=Char_default_unsigned -Hon=Char_is_rep -I../inc -I/risc/tools/pkgs/metaware/inc
-CCobj   = $(CC) $(CFLAGS) $(DEBUG) $(OPTIM)
-PREP    = $(CC) $(CFLAGS) -P
-
-# Assembler used to build the .s files (for the board version)
-
-ASOPT   = -big_si -c
-ASDEBUG = -l -fm
-AS      = /risc/tools/pkgs/metaware/bin/asppc
-
-# Linker to bring .o files together into an executable.
-
-LKOPT	=  -Bbase=0 -q -Qn -r
-LKCMD   =
-LINK    =  /risc/tools/pkgs/metaware/bin/ldppc $(LKCMD) $(LKOPT)
-
-# DOS Utilities
-
-DEL     = rm
-COPY    = cp
-LIST    = ls
-
-OBJECTS = i2c1.o i2c2.o
-
-all: $(TARGET)
-
-objects: $(OBJECTS)
-
-$(TARGET): $(OBJECTS)
-	$(LINK) $(OBJECTS) -o $@
-
-clean:
-	$(DEL) -f *.o *.i *.map *.lst $(TARGET) $(OBJECTS)
-
-.s.o:
-	$(DEL) -f $*.i
-	$(PREP) -Hasmcpp $<
-	$(AS) $(ASOPT) $*.i
-#	$(AS) $(ASOPT) $(ASDEBUG) $*.i > $*.lst
-
-.c.o:
-	$(CCobj) $<
-
-.c.s:
-	$(CCobj) $(LST) $<
-
-i2c1.o: i2c_export.h i2c.h i2c1.c
-
-i2c2.o: i2c.h i2c2.s

cpu/mpc824x/drivers/i2c/Makefile_pc

@@ -1,91 +0,0 @@
-##########################################################################
-#
-#       makefile_pc for use with PC mksnt tools  dink32/drivers/i2c
-#
-#       Copyright Motorola, Inc. 1997
-#       ALL RIGHTS RESERVED
-#
-#       You are hereby granted a copyright license to use, modify, and
-#       distribute the SOFTWARE so long as this entire notice is retained
-#       without alteration in any modified and/or redistributed versions,
-#       and that such modified versions are clearly identified as such.
-#       No licenses are granted by implication, estoppel or otherwise under
-#       any patents or trademarks of Motorola, Inc.
-#
-#       The SOFTWARE is provided on an "AS IS" basis and without warranty.
-#       To the maximum extent permitted by applicable law, MOTOROLA DISCLAIMS
-#       ALL WARRANTIES WHETHER EXPRESS OR IMPLIED, INCLUDING IMPLIED
-#       WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
-#       PURPOSE AND ANY WARRANTY AGAINST INFRINGEMENT WITH
-#       REGARD TO THE SOFTWARE (INCLUDING ANY MODIFIED VERSIONS
-#       THEREOF) AND ANY ACCOMPANYING WRITTEN MATERIALS.
-#
-#       To the maximum extent permitted by applicable law, IN NO EVENT SHALL
-#       MOTOROLA BE LIABLE FOR ANY DAMAGES WHATSOEVER
-#       (INCLUDING WITHOUT LIMITATION, DAMAGES FOR LOSS OF
-#       BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS
-#       INFORMATION, OR OTHER PECUNIARY LOSS) ARISING OF THE USE OR
-#       INABILITY TO USE THE SOFTWARE.
-#
-############################################################################
-TARGET = libi2c.a
-
-#DEBUG  = -g
-DEBUG   = -DI2CDBG
-LST     = -Hanno -S
-OPTIM   =
-CC      = m:/old_tools/tools/hcppc/bin/hcppc
-CFLAGS  = -Hnocopyr -c -Hsds -Hon=Char_default_unsigned -Hon=Char_is_rep -I../inc -I/risc/tools/pkgs/metaware/inc
-CCobj   = $(CC) $(CFLAGS) $(DEBUG) $(OPTIM)
-PREP    = $(CC) $(CFLAGS) -P
-
-# Assembler used to build the .s files (for the board version)
-
-ASOPT   = -big_si -c
-ASDEBUG = -l -fm
-AS      = m:/old_tools/tools/hcppc/bin/asppc
-
-# Linker to bring .o files together into an executable.
-
-LKOPT	=  -Bbase=0 -q -Qn -r
-LKCMD   =
-LINK    = m:/old_tools/tools/hcppc/bin/ldppc $(LKCMD) $(LKOPT)
-
-# DOS Utilities
-
-DEL     = rm
-COPY    = cp
-LIST    = ls
-
-OBJECTS = i2c1.o i2c2.o
-
-all: $(TARGET)
-
-objects: $(OBJECTS)
-
-$(TARGET): $(OBJECTS)
-	$(LINK) $(OBJECTS) -o $@
-
-clean:
-	$(DEL) -f *.o *.i *.map *.lst $(TARGET) $(OBJECTS)
-
-.s.o:
-	$(DEL) -f $*.i
-	$(PREP) -Hasmcpp $<
-	$(AS) $(ASOPT) $*.i
-#	$(AS) $(ASOPT) $(ASDEBUG) $*.i > $*.lst
-
-.c.o:
-	$(CCobj) $<
-
-.c.s:
-	$(CCobj) $(LST) $<
-
-i2c1.o: i2c_export.h i2c.h i2c1.c
-	$(CCobj) $<
-
-
-i2c2.o: i2c.h i2c2.s
-	$(DEL) -f $*.i
-	$(PREP) -Hasmcpp $<
-	$(AS) $(ASOPT) $*.i

cpu/mpc824x/drivers/i2c/README

@@ -1,104 +0,0 @@
-CONTENT:
-
-   i2c.h
-   i2c1.c
-   i2c2.s
-
-WHAT ARE THESE FILES:
-
-These files contain MPC8240 (Kahlua) I2C
-driver routines. The driver routines are not
-written for any specific operating system.
-They serves the purpose of code sample, and
-jump-start for using the MPC8240 I2C unit.
-
-For the reason of correctness of C language
-syntax, these files are compiled by Metaware
-C compiler and assembler.
-
-ENDIAN NOTATION:
-
-The algorithm is designed for big-endian mode,
-software is responsible for byte swapping.
-
-USAGE:
-
-1. The host system that is running on MPC8240
-   shall link the files listed here. The memory
-   location of driver routines shall take into
-   account of that driver routines need to run
-   in supervisor mode and they process I2C
-   interrupt.
-
-2. The host system is responsible for configuring
-   the MPC8240 including Embedded Utilities Memory
-   Block. All I2C driver functions require the
-   content of Embedded Utilities Memory Block
-   Base Address Register, EUMBBAR, as the first
-   parameter.
-
-3. Before I2C unit of MPC8240 can be used,
-   initialize I2C unit by calling I2C_Init
-   with the corresponding parameters.
-
-   Note that the I2CFDR register shall be written
-   once during the initialization. If it is written
-   in the midst of transers, or after I2C STOPs or
-   REPEAT STATRs, depending on the data written,
-   a long reset time may be encountered.
-
-4. After I2C unit has been successfully initialized,
-   use the Application level API to send data or
-   receive data upon the desired mode, Master or
-   Slave.
-
-5. If the host system is also using the EPIC unit
-   on MPC8240, the system can register the
-   I2C_ISR with the EPIC including other
-   desired resources.
-
-   If the host system does not using the EPIC unit
-   on MPC8240, I2C_Timer_Event function can
-   be called for each desired time interval.
-
-   In both cases, the host system is free to provide
-   its own timer event handler and interrupt service
-   routine.
-
-6. The I2C driver routines contains a set
-   of utilities, Set and Get, for host system
-   to query and modify the desired I2C registers.
-
-7. It is the host system's responsibility of
-   queueing the I2C I/O request. The host
-   system shall check the I2C_ISR return code
-   for I2C I/O status. If I2C_ISR returns
-   I2CBUFFEMPTY or I2CBUFFFULL, it means
-   I2C unit has completed a I/O request
-   stated by the Application API.
-
-8. If the host system has more than one master
-   mode I2C unit I/O requests but doesn't want
-   to be intervented by being addressed as slave,
-   the host system can use the master mode
-   Application API with stop_flag set to 0 in
-   conjunction with is_cnt flag set to 1.
-   The first API call sets both stop_flag and
-   is_cnt to 0, indicating a START condition
-   shall be generated but when the end of
-   transaction is reached, do not generate a
-   STOP condition. Once the host system is
-   informed that the transaction has been
-   completed, the next Application API call
-   shall set is_cnt flag to 1, indicating a
-   repeated START condition shall be generated.
-   The last Application API call shall set
-   stop_flag
-   to 1.
-
-9. The I2C_Timer_Event function containes
-   a user defined function pointer. It
-   serves the purpose of providing the
-   host system a way to use its own event
-   handler instead of the I2C_ISR provided
-   here.

cpu/mpc824x/drivers/i2c/i2c.c

@@ -0,0 +1,284 @@
+/*
+ * (C) Copyright 2003
+ * Gleb Natapov <gnatapov@mrv.com>
+ * Some bits are taken from linux driver writen by adrian@humboldt.co.uk
+ *
+ * Hardware I2C driver for MPC107 PCI bridge.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+
+#undef I2CDBG
+
+#ifdef CONFIG_HARD_I2C
+#include <i2c.h>
+
+#define TIMEOUT (CFG_HZ/4)
+
+#define I2C_Addr ((unsigned *)(CFG_EUMB_ADDR + 0x3000))
+
+#define I2CADR &I2C_Addr[0]
+#define I2CFDR  &I2C_Addr[1]
+#define I2CCCR  &I2C_Addr[2]
+#define I2CCSR  &I2C_Addr[3]
+#define I2CCDR  &I2C_Addr[4]
+
+#define MPC107_CCR_MEN  0x80
+#define MPC107_CCR_MIEN 0x40
+#define MPC107_CCR_MSTA 0x20
+#define MPC107_CCR_MTX  0x10
+#define MPC107_CCR_TXAK 0x08
+#define MPC107_CCR_RSTA 0x04
+
+#define MPC107_CSR_MCF  0x80
+#define MPC107_CSR_MAAS 0x40
+#define MPC107_CSR_MBB  0x20
+#define MPC107_CSR_MAL  0x10
+#define MPC107_CSR_SRW  0x04
+#define MPC107_CSR_MIF  0x02
+#define MPC107_CSR_RXAK 0x01
+
+#define I2C_READ  1
+#define I2C_WRITE 0
+
+/* taken from linux include/asm-ppc/io.h */
+inline unsigned in_le32 (volatile unsigned *addr)
+{
+	unsigned ret;
+
+	__asm__ __volatile__ ("lwbrx %0,0,%1;\n"
+			      "twi 0,%0,0;\n"
+			      "isync":"=r" (ret): "r" (addr), "m" (*addr));
+	return ret;
+}
+
+inline void out_le32 (volatile unsigned *addr, int val)
+{
+	__asm__ __volatile__ ("stwbrx %1,0,%2; eieio":"=m" (*addr):"r" (val),
+			      "r" (addr));
+}
+
+#define writel(val, addr) out_le32(addr, val)
+#define readl(addr) in_le32(addr)
+
+void i2c_init (int speed, int slaveadd)
+{
+	/* stop I2C controller */
+	writel (0x0, I2CCCR);
+	/* set clock */
+	writel (0x1020, I2CFDR);
+	/* write slave address */
+	writel (slaveadd, I2CADR);
+	/* clear status register */
+	writel (0x0, I2CCSR);
+	/* start I2C controller */
+	writel (MPC107_CCR_MEN, I2CCCR);
+
+	return;
+}
+
+static __inline__ int i2c_wait4bus (void)
+{
+	ulong timeval = get_timer (0);
+
+	while (readl (I2CCSR) & MPC107_CSR_MBB)
+		if (get_timer (timeval) > TIMEOUT)
+			return -1;
+
+	return 0;
+}
+
+static __inline__ int i2c_wait (int write)
+{
+	u32 csr;
+	ulong timeval = get_timer (0);
+
+	do {
+		csr = readl (I2CCSR);
+
+		if (!(csr & MPC107_CSR_MIF))
+			continue;
+
+		writel (0x0, I2CCSR);
+
+		if (csr & MPC107_CSR_MAL) {
+#ifdef I2CDBG
+			printf ("i2c_wait: MAL\n");
+#endif
+			return -1;
+		}
+
+		if (!(csr & MPC107_CSR_MCF)) {
+#ifdef I2CDBG
+			printf ("i2c_wait: unfinished\n");
+#endif
+			return -1;
+		}
+
+		if (write == I2C_WRITE && (csr & MPC107_CSR_RXAK)) {
+#ifdef I2CDBG
+			printf ("i2c_wait: No RXACK\n");
+#endif
+			return -1;
+		}
+
+		return 0;
+	} while (get_timer (timeval) < TIMEOUT);
+
+#ifdef I2CDBG
+	printf ("i2c_wait: timed out\n");
+#endif
+	return -1;
+}
+
+static __inline__ int i2c_write_addr (u8 dev, u8 dir, int rsta)
+{
+	writel (MPC107_CCR_MEN | MPC107_CCR_MSTA | MPC107_CCR_MTX |
+		(rsta ? MPC107_CCR_RSTA : 0), I2CCCR);
+
+	writel ((dev << 1) | dir, I2CCDR);
+
+	if (i2c_wait (I2C_WRITE) < 0)
+		return 0;
+
+	return 1;
+}
+
+static __inline__ int __i2c_write (u8 * data, int length)
+{
+	int i;
+
+	writel (MPC107_CCR_MEN | MPC107_CCR_MSTA | MPC107_CCR_MTX, I2CCCR);
+
+	for (i = 0; i < length; i++) {
+		writel (data[i], I2CCDR);
+
+		if (i2c_wait (I2C_WRITE) < 0)
+			break;
+	}
+
+	return i;
+}
+
+static __inline__ int __i2c_read (u8 * data, int length)
+{
+	int i;
+
+	writel (MPC107_CCR_MEN | MPC107_CCR_MSTA |
+		((length == 1) ? MPC107_CCR_TXAK : 0), I2CCCR);
+
+	/* dummy read */
+	readl (I2CCDR);
+
+	for (i = 0; i < length; i++) {
+		if (i2c_wait (I2C_READ) < 0)
+			break;
+
+		/* Generate ack on last next to last byte */
+		if (i == length - 2)
+			writel (MPC107_CCR_MEN | MPC107_CCR_MSTA |
+				MPC107_CCR_TXAK, I2CCCR);
+
+		/* Generate stop on last byte */
+		if (i == length - 1)
+			writel (MPC107_CCR_MEN | MPC107_CCR_TXAK, I2CCCR);
+
+		data[i] = readl (I2CCDR);
+	}
+
+	return i;
+}
+
+int i2c_read (u8 dev, uint addr, int alen, u8 * data, int length)
+{
+	int i = 0;
+	u8 *a = (u8 *) & addr;
+
+	if (i2c_wait4bus () < 0)
+		goto exit;
+
+	if (i2c_write_addr (dev, I2C_WRITE, 0) == 0)
+		goto exit;
+
+	if (__i2c_write (&a[4 - alen], alen) != alen)
+		goto exit;
+
+	if (i2c_write_addr (dev, I2C_READ, 1) == 0)
+		goto exit;
+
+	i = __i2c_read (data, length);
+
+exit:
+	writel (MPC107_CCR_MEN, I2CCCR);
+
+	return !(i == length);
+}
+
+int i2c_write (u8 dev, uint addr, int alen, u8 * data, int length)
+{
+	int i = 0;
+	u8 *a = (u8 *) & addr;
+
+	if (i2c_wait4bus () < 0)
+		goto exit;
+
+	if (i2c_write_addr (dev, I2C_WRITE, 0) == 0)
+		goto exit;
+
+	if (__i2c_write (&a[4 - alen], alen) != alen)
+		goto exit;
+
+	i = __i2c_write (data, length);
+
+exit:
+	writel (MPC107_CCR_MEN, I2CCCR);
+
+	return !(i == length);
+}
+
+int i2c_probe (uchar chip)
+{
+	int tmp;
+
+	/*
+	 * Try to read the first location of the chip.  The underlying
+	 * driver doesn't appear to support sending just the chip address
+	 * and looking for an <ACK> back.
+	 */
+	udelay (10000);
+	return i2c_read (chip, 0, 1, (char *) &tmp, 1);
+}
+
+uchar i2c_reg_read (uchar i2c_addr, uchar reg)
+{
+	char buf[1];
+
+	i2c_read (i2c_addr, reg, 1, buf, 1);
+
+	return (buf[0]);
+}
+
+void i2c_reg_write (uchar i2c_addr, uchar reg, uchar val)
+{
+	i2c_write (i2c_addr, reg, 1, &val, 1);
+}
+
+#endif /* CONFIG_HARD_I2C */

cpu/mpc824x/drivers/i2c/i2c.h

@@ -1,309 +0,0 @@
-#ifndef I2C_H
-#define I2C_H
-
-/****************************************************
- *
- * Copyright Motrola 1999
- *
- ****************************************************/
-#define get_eumbbar() CFG_EUMB_ADDR
-
-#define I2CADR    0x00003000
-#define I2CFDR    0x00003004
-#define I2CCR     0x00003008
-#define I2CSR     0x0000300C
-#define I2CDR     0x00003010
-
-typedef enum _i2cstatus
-{
- I2CSUCCESS     = 0x3000,
- I2CADDRESS,
- I2CERROR,
- I2CBUFFFULL,
- I2CBUFFEMPTY,
- I2CXMITERROR,
- I2CRCVERROR,
- I2CBUSBUSY,
- I2CALOSS,
- I2CNOEVENT,
-} I2CStatus;
-
-typedef enum i2c_control
-{
- MEN  = 0x00000080,
- MIEN = 0x00000040,
- MSTA = 0x00000020,
- MTX  = 0x00000010,
- TXAK = 0x00000008,
- RSTA = 0x00000004,
-} I2C_CONTROL;
-
-typedef enum i2c_status
-{
-  MCF   =  0x00000080,
-  MAAS  =  0x00000040,
-  MBB   =  0x00000020,
-  MAL   =  0x00000010,
-  SRW   =  0x00000004,
-  MIF   =  0x00000002,
-  RXAK  =  0x00000001,
-} I2C_STATUS;
-
-typedef struct _i2c_ctrl
-{
-	unsigned int reserved0 : 24;
-	unsigned int men       : 1;
-	unsigned int mien      : 1;
-	unsigned int msta      : 1;
-	unsigned int mtx       : 1;
-	unsigned int txak      : 1;
-	unsigned int rsta      : 1;
-	unsigned int reserved1 : 2;
-} I2C_CTRL;
-
-typedef struct _i2c_stat
-{
-	unsigned int rsrv0    : 24;
-	unsigned int mcf      : 1;
-	unsigned int maas     : 1;
-	unsigned int mbb      : 1;
-	unsigned int mal      : 1;
-	unsigned int rsrv1    : 1;
-	unsigned int srw      : 1;
-	unsigned int mif      : 1;
-	unsigned int rxak     : 1;
-} I2C_STAT;
-
-typedef enum _i2c_mode
-{
-	RCV =  0,
-	XMIT = 1,
-} I2C_MODE;
-
-/******************** App. API ********************
- * The application API is for user level application
- * to use the funcitonality provided by I2C driver
- *
- * Note: Its App.s responsibility to swap the data
- *       byte. In our API, we just transfer whatever
- *       we are given
- **************************************************/
-/**
- * Note:
- *
- * In all following functions,
- * the caller shall pass the configured embedded utility memory
- * block base, EUMBBAR.
- **/
-
-/* Send a buffer of data to the intended rcv_addr.
- * If stop_flag is set, after the whole buffer
- * is sent, generate a STOP signal provided that the
- * receiver doesn't signal the STOP in the middle.
- * I2C is the master performing transmitting. If
- * no STOP signal is generated at the end of current
- * transaction, the master can generate a START signal
- * to another slave addr.
- *
- * return I2CSUCCESS if no error.
- */
-static I2CStatus I2C_put( unsigned int  eumbbar,
-						  unsigned char rcv_addr,    /* receiver's address */
-			      unsigned char *buffer_ptr, /* pointer of data to be sent */
-					      unsigned int  length,      /* number of byte of in the buffer */
-					      unsigned int  stop_flag,   /* 1 - signal STOP when buffer is empty
-									  * 0 - no STOP signal when buffer is empty
-												  */
-						  unsigned int  is_cnt );    /* 1 - this is a restart, don't check MBB
-						      * 0 - this is a new start, check MBB
-													  */
-
-/* Receive a buffer of data from the desired sender_addr
- * If stop_flag is set, when the buffer is full and the
- * sender does not signal STOP, generate a STOP signal.
- * I2C is the master performing receiving. If no STOP signal
- * is generated, the master can generate a START signal
- * to another slave addr.
- *
- * return I2CSUCCESS if no error.
- */
-static I2CStatus I2C_get( unsigned int  eumbbar,
-						  unsigned char sender_addr, /* sender's address */
-					      unsigned char *buffer_ptr, /* pointer of receiving buffer */
-					  unsigned int  length,      /* length of the receiving buffer */
-					      unsigned int  stop_flag,   /* 1 - signal STOP when buffer is full
-									  * 0 - no STOP signal when buffer is full
-												      */
-						  unsigned int  is_cnt );    /* 1 - this is a restart, don't check MBB
-						      * 0 - this is a new start, check MBB
-													  */
-
-#if 0 /* the I2C_write and I2C_read functions are not active */
-/* Send a buffer of data to the requiring master.
- * If stop_flag is set, after the whole buffer is sent,
- * generate a STOP signal provided that the requiring
- * receiver doesn't signal the STOP in the middle.
- * I2C is the slave performing transmitting.
- *
- * return I2CSUCCESS if no error.
- *
- * Note: due to the Kahlua design, slave transmitter
- *       shall not signal STOP since there is no way
- *       for master to detect it, causing I2C bus hung.
- *
- *       For the above reason, the stop_flag is always
- *       set, i.e., 1.
- *
- *       programmer shall use the timer on Kahlua to
- *       control the interval of data byte at the
- *       master side.
- */
-static I2CStatus I2C_write( unsigned int eumbbar,
-						    unsigned char *buffer_ptr, /* pointer of data to be sent */
-						unsigned int  length,      /* number of byte of in the buffer */
-						unsigned int  stop_flag ); /* 1 - signal STOP when buffer is empty
-											* 0 - no STOP signal when buffer is empty
-												    */
-
- /* Receive a buffer of data from the sending master.
- * If stop_flag is set, when the buffer is full and the
- * sender does not signal STOP, generate a STOP signal.
- * I2C is the slave performing receiving.
- *
- * return I2CSUCCESS if no error.
- */
-static I2CStatus I2C_read(unsigned int  eumbbar,
-						  unsigned char *buffer_ptr, /* pointer of receiving buffer */
-					      unsigned int  length,      /* length of the receiving buffer */
-					  unsigned int  stop_flag ); /* 1 - signal STOP when buffer is full
-									  * 0 - no STOP signal when buffer is full
-												      */
-#endif /* of if0 for turning off I2C_read & I2C_write */
-
-/* if interrupt is not used, this is the timer event handler.
- * After each fixed time interval, this function can be called
- * to check the I2C status and call appropriate function to
- * handle the status event.
- */
-static I2CStatus I2C_Timer_Event( unsigned int eumbbar, I2CStatus (*handler)( unsigned int ) );
-
-/********************* Kernel API ************************
- * Kernel APIs are functions I2C driver provides to the
- * O.S.
- *********************************************************/
-
-/******************* device I/O function ***************/
-
-/*  Generate a START signal in the desired mode.
- *  I2C is the master.
- *
- * return I2CSUCCESS if no error.
- *        I2CERROR   if i2c unit is not enabled.
- *        I2CBUSBUSY if bus cannot be granted
- */
-static I2CStatus I2C_Start( unsigned int  eumbbar,
-						    unsigned char slave_addr, /* address of the receiver */
-				I2C_MODE     mode,       /* XMIT(1) - put (write)
-										  * RCV(0)  - get (read)
-													  */
-						    unsigned int is_cnt ); /* 1 - this is a restart, don't check MBB
-													* 0 - this is a new start, check MBB
-						    */
-
-/* Generate a STOP signal to terminate the transaction. */
-static I2CStatus I2C_Stop( unsigned int eumbbar );
-
-/*  Do a one-byte master transmit.
- *
- *  return I2CBUFFEMPTY if this is the last byte.
- *  Otherwise return I2CSUCCESS
- */
-static I2CStatus I2C_Master_Xmit( unsigned int eumbbar );
-
-/*  Do a one-byte master receive.
- *
- *  return I2CBUFFFULL if this is the last byte.
- *  Otherwise return I2CSUCCESS
- */
-static I2CStatus I2C_Master_Rcv( unsigned int eumbbar );
-
-/*  Do a one-byte slave transmit.
- *
- *  return I2CBUFFEMPTY if this is the last byte.
- *  Otherwise return I2CSUCCESS
- *
- */
-static I2CStatus I2C_Slave_Xmit( unsigned int eumbbar );
-
-/* Do a one-byte slave receive.
- *
- *  return I2CBUFFFULL if this is the last byte.
- *  Otherwise return I2CSUCCESS
- */
-static I2CStatus I2C_Slave_Rcv( unsigned int eumbbar  );
-
-/* Process slave address phase.
- *
- * return I2CADDRESS if this is slave receiver's address phase
- * Otherwise return the result of slave xmit one byte.
- */
-static I2CStatus I2C_Slave_Addr( unsigned int eumbbar );
-
-/******************* Device Control Fucntion ****************/
-/*  Initialize I2C unit with desired frequency divider,
- *  driver's slave address w/o interrupt enabled.
- *
- *  This function must be called before I2C unit can
- *  be used.
- */
-static I2CStatus I2C_Init( unsigned int  eumbbar,
-						   unsigned char fdr,       /* frequency divider */
-			       unsigned char addr,      /* driver's address used for receiving */
-					   unsigned int en_int);    /* 1 - enable I2C interrupt
-									 * 0 - disable I2C interrup
-												 */
-
-/* I2C interrupt service routine.
- *
- * return I2CADDRESS if it is receiver's (either master or slave) address phase.
- * return the result of xmit or receive one byte
- */
-static I2CStatus I2C_ISR(unsigned int eumbbar  );
-
-/* Set I2C Status, i.e., write to I2CSR */
-static void I2C_Set_Stat( unsigned int eumbbar, I2C_STAT stat );
-
-/* Query I2C Status, i.e., read I2CSR */
-static I2C_STAT I2C_Get_Stat( unsigned int eumbbar );
-
-/* Change I2C Control bits, i.e., write to I2CCR */
-static void I2C_Set_Ctrl( unsigned int eumbbar, I2C_CTRL ); /* new control value */
-
-/* Query I2C Control bits, i.e., read I2CCR */
-static I2C_CTRL I2C_Get_Ctrl( unsigned int eumbbar );
-
-/* This function performs the work for I2C_do_transaction.  The work is
- * split into this function to enable I2C_do_transaction to first transmit
- * the data address to the I2C slave device without putting the data address
- * into the first byte of the buffer.
- *
- * en_int controls interrupt/polling mode
- * act is the type of transaction
- * i2c_addr is the I2C address of the slave device
- * len is the length of data to send or receive
- * buffer is the address of the data buffer
- * stop = I2C_NO_STOP, don't signal STOP at end of transaction
- *        I2C_STOP, signal STOP at end of transaction
- * retry is the timeout retry value, currently ignored
- * rsta = I2C_NO_RESTART, this is not continuation of existing transaction
- *        I2C_RESTART, this is a continuation of existing transaction
- */
-static I2C_Status I2C_do_buffer( I2C_INTERRUPT_MODE en_int,
-				 I2C_TRANSACTION_MODE act,
-				 unsigned char i2c_addr,
-				 int len,
-				 unsigned char *buffer,
-				 I2C_STOP_MODE stop,
-				 int retry,
-				 I2C_RESTART_MODE rsta);
-#endif

cpu/mpc824x/drivers/i2c/i2c1.c

@@ -1,1243 +0,0 @@
-/*************************************************************
- *
- * Copyright @ Motorola, 1999
- *
- ************************************************************/
-#include <common.h>
-
-#ifdef CONFIG_HARD_I2C
-#include <i2c.h>
-#include "i2c_export.h"
-#include "i2c.h"
-
-#undef  I2CDBG0
-#undef  DEBUG
-
-/* Define a macro to use an optional application-layer print function, if
- * one was passed to the I2C library during initialization.  If there was
- * no function pointer passed, this protects against calling it.  Also define
- * the global variable that holds the passed pointer.
- */
-#define TIMEOUT (CFG_HZ/4)
-#define PRINT if ( app_print ) app_print
-static int (*app_print) (char *, ...);
-
-/******************* Internal to I2C Driver *****************/
-static unsigned int ByteToXmit = 0;
-static unsigned int XmitByte = 0;
-static unsigned char *XmitBuf = 0;
-static unsigned int XmitBufEmptyStop = 0;
-static unsigned int ByteToRcv = 0;
-static unsigned int RcvByte = 0;
-static unsigned char *RcvBuf = 0;
-static unsigned int RcvBufFulStop = 0;
-static unsigned int MasterRcvAddress = 0;
-
-/* Set by call to get_eumbbar during I2C_Initialize.
- * This could be globally available to the I2C library, but there is
- * an advantage to passing it as a parameter: it is already in a register
- * and doesn't have to be loaded from memory.  Also, that is the way the
- * I2C library was already implemented and I don't want to change it without
- * a more detailed analysis.
- * It is being set as a global variable in I2C_Initialize to hide it from
- * the DINK application layer, because it is Kahlua-specific.  I think that
- * get_eumbbar, load_runtime_reg, and store_runtime_reg should be defined in
- * a Kahlua-specific library dealing with the embedded utilities memory block.
- * Right now, get_eumbbar is defined in dink32/kahlua.s.  The other two are
- * defined in dink32/drivers/i2c/i2c2.s.
- */
-static unsigned int Global_eumbbar = 0;
-
-extern unsigned int load_runtime_reg (unsigned int eumbbar,
-				      unsigned int reg);
-
-extern unsigned int store_runtime_reg (unsigned int eumbbar,
-				       unsigned int reg, unsigned int val);
-
-/************************** API *****************/
-
-/* Application Program Interface (API) are the calls provided by the I2C
- * library to upper layer applications (i.e., DINK) to access the Kahlua
- * I2C bus interface.  The functions and values that are part of this API
- * are declared in i2c_export.h.
- */
-
-/*  Initialize I2C unit with the following:
- *  driver's slave address
- *  interrupt enabled
- *  optional pointer to application layer print function
- *
- *  These parameters may be added:
- *  desired clock rate
- *  digital filter frequency sampling rate
- *
- *  This function must be called before I2C unit can be used.
- */
-I2C_Status I2C_Initialize (unsigned char addr,
-			   I2C_INTERRUPT_MODE en_int,
-			   int (*p) (char *, ...))
-{
-	I2CStatus status;
-
-	/* establish the pointer, if there is one, to the application's "printf" */
-	app_print = p;
-
-	/* If this is the first call, get the embedded utilities memory block
-	 * base address.  I'm not sure what to do about error handling here:
-	 * if a non-zero value is returned, accept it.
-	 */
-	if (Global_eumbbar == 0)
-		Global_eumbbar = get_eumbbar ();
-	if (Global_eumbbar == 0) {
-		PRINT ("I2C_Initialize: can't find EUMBBAR\n");
-		return I2C_ERROR;
-	}
-
-	/* validate the I2C address */
-	if (addr & 0x80) {
-		PRINT ("I2C_Initialize, I2C address invalid:  %d 0x%x\n",
-			   (unsigned int) addr, (unsigned int) addr);
-		return I2C_ERROR;
-	}
-
-	/* Call the internal I2C library function to perform work.
-	 * Accept the default frequency sampling rate (no way to set it currently,
-	 * via I2C_Init) and set the clock frequency to something reasonable.
-	 */
-	status = I2C_Init (Global_eumbbar, (unsigned char) 0x31, addr, en_int);
-	if (status != I2CSUCCESS) {
-		PRINT ("I2C_Initialize: error in initiation\n");
-		return I2C_ERROR;
-	}
-
-	/* all is well */
-	return I2C_SUCCESS;
-}
-
-
-/* Perform the given I2C transaction, only MASTER_XMIT and MASTER_RCV
- * are implemented.  Both are only in polling mode.
- *
- * en_int controls interrupt/polling mode
- * act is the type of transaction
- * i2c_addr is the I2C address of the slave device
- * data_addr is the address of the data on the slave device
- * len is the length of data to send or receive
- * buffer is the address of the data buffer
- * stop = I2C_NO_STOP, don't signal STOP at end of transaction
- *	  I2C_STOP, signal STOP at end of transaction
- * retry is the timeout retry value, currently ignored
- * rsta = I2C_NO_RESTART, this is not continuation of existing transaction
- *	  I2C_RESTART, this is a continuation of existing transaction
- */
-I2C_Status I2C_do_transaction ( I2C_INTERRUPT_MODE en_int,
-				I2C_TRANSACTION_MODE act,
-				unsigned char i2c_addr,
-				unsigned char data_addr,
-				int len,
-				char *buffer,
-				I2C_STOP_MODE stop,
-				int retry, I2C_RESTART_MODE rsta)
-{
-	I2C_Status status;
-	unsigned char data_addr_buffer[1];
-
-#if 1
-/* This is a temporary work-around.  The I2C library breaks the protocol
- * if it attempts to handle a data transmission in more than one
- * transaction, so the data address and the actual data bytes are put
- * into a single buffer before sending it to the library internal functions.
- * The problem is related to being able to restart a transaction without
- * sending the I2C device address or repeating the data address.  It may take
- * a day or two to sort it all out, so I'll have to get back to it later.
- * Look at I2C_Start to see about using some status flags (I'm not sure that
- * "stop" and "rsta" are enough to reflect the states, maybe so; but the logic
- * in the library is insufficient) to control correct handling of the protocol.
- */
-	unsigned char dummy_buffer[257];
-
-	if (act == I2C_MASTER_XMIT) {
-		int i;
-
-		if (len > 256)
-			return I2C_ERROR;
-		for (i = 1; i <= len; i++)
-			dummy_buffer[i] = buffer[i - 1];
-		dummy_buffer[0] = data_addr;
-		status = I2C_do_buffer (en_int, act, i2c_addr, 1 + len,
-					dummy_buffer, stop, retry, rsta);
-		if (status != I2C_SUCCESS) {
-			PRINT ("I2C_do_transaction: can't perform data transfer\n");
-			return I2C_ERROR;
-		}
-		return I2C_SUCCESS;
-	}
-#endif	/* end of temp work-around */
-
-	/* validate requested transaction type */
-	if ((act != I2C_MASTER_XMIT) && (act != I2C_MASTER_RCV)) {
-		PRINT ("I2C_do_transaction, invalid transaction request:  %d\n",
-			act);
-		return I2C_ERROR;
-	}
-
-	/* range check the I2C address */
-	if (i2c_addr & 0x80) {
-		PRINT ("I2C_do_transaction, I2C address out of range:  %d 0x%x\n",
-			(unsigned int) i2c_addr, (unsigned int) i2c_addr);
-		return I2C_ERROR;
-	} else {
-		data_addr_buffer[0] = data_addr;
-	}
-
-	/*
-	 * We first have to contact the slave device and transmit the
-	 * data address. Be careful about the STOP and restart stuff.
-	 * We don't want to signal STOP after sending the data
-	 * address, but this could be a continuation if the
-	 * application didn't release the bus after the previous
-	 * transaction, by not sending a STOP after it.
-	 */
-	status = I2C_do_buffer (en_int, I2C_MASTER_XMIT, i2c_addr, 1,
-				data_addr_buffer, I2C_NO_STOP, retry, rsta);
-	if (status != I2C_SUCCESS) {
-		PRINT ("I2C_do_transaction: can't send data address for read\n");
-		return I2C_ERROR;
-	}
-
-	/* The data transfer will be a continuation. */
-	rsta = I2C_RESTART;
-
-	/* now handle the user data */
-	status = I2C_do_buffer (en_int, act, i2c_addr, len,
-				buffer, stop, retry, rsta);
-	if (status != I2C_SUCCESS) {
-		PRINT ("I2C_do_transaction: can't perform data transfer\n");
-		return I2C_ERROR;
-	}
-
-	/* all is well */
-	return I2C_SUCCESS;
-}
-
-/* This function performs the work for I2C_do_transaction.  The work is
- * split into this function to enable I2C_do_transaction to first transmit
- * the data address to the I2C slave device without putting the data address
- * into the first byte of the buffer.
- *
- * en_int controls interrupt/polling mode
- * act is the type of transaction
- * i2c_addr is the I2C address of the slave device
- * len is the length of data to send or receive
- * buffer is the address of the data buffer
- * stop = I2C_NO_STOP, don't signal STOP at end of transaction
- *	  I2C_STOP, signal STOP at end of transaction
- * retry is the timeout retry value, currently ignored
- * rsta = I2C_NO_RESTART, this is not continuation of existing transaction
- *	  I2C_RESTART, this is a continuation of existing transaction
- */
-static I2C_Status I2C_do_buffer (I2C_INTERRUPT_MODE en_int,
-				 I2C_TRANSACTION_MODE act,
-				 unsigned char i2c_addr,
-				 int len,
-				 unsigned char *buffer,
-				 I2C_STOP_MODE stop,
-				 int retry, I2C_RESTART_MODE rsta)
-{
-	I2CStatus rval;
-	unsigned int dev_stat;
-
-	if (act == I2C_MASTER_RCV) {
-		/* set up for master-receive transaction */
-		rval = I2C_get (Global_eumbbar, i2c_addr, buffer, len, stop, rsta);
-	} else {
-		/* set up for master-transmit transaction */
-		rval = I2C_put (Global_eumbbar, i2c_addr, buffer, len, stop, rsta);
-	}
-
-	/* validate the setup */
-	if (rval != I2CSUCCESS) {
-		dev_stat = load_runtime_reg (Global_eumbbar, I2CSR);
-		PRINT ("Error(I2C_do_buffer): control phase, code(0x%08x), status(0x%08x)\n", rval, dev_stat);
-		I2C_Stop (Global_eumbbar);
-		return I2C_ERROR;
-	}
-
-	if (en_int == 1) {
-		/* this should not happen, no interrupt handling yet */
-		return I2C_SUCCESS;
-	}
-
-	/* this performs the polling action, when the transfer is completed,
-	 * the status returned from I2C_Timer_Event will be I2CBUFFFULL or
-	 * I2CBUFFEMPTY (rcv or xmit), I2CSUCCESS or I2CADDRESS indicates the
-	 * transaction is not yet complete, anything else is an error.
-	 */
-	while (rval == I2CSUCCESS || rval == I2CADDRESS) {
-		int timeval = get_timer (0);
-
-		/* poll the device until something happens */
-		do {
-			rval = I2C_Timer_Event (Global_eumbbar, 0);
-		}
-		while (rval == I2CNOEVENT && get_timer (timeval) < TIMEOUT);
-
-		/* check for error condition */
-		if (rval == I2CSUCCESS   ||
-		    rval == I2CBUFFFULL  ||
-		    rval == I2CBUFFEMPTY ||
-		    rval == I2CADDRESS) {
-			;	/* do nothing */
-		} else {
-			/* report the error condition */
-			dev_stat = load_runtime_reg (Global_eumbbar, I2CSR);
-			PRINT ("Error(I2C_do_buffer):  code(0x%08x), status(0x%08x)\n",
-				   rval, dev_stat);
-			return I2C_ERROR;
-		}
-	}
-
-	/* all is well */
-	return I2C_SUCCESS;
-}
-
-/**
- * Note:
- *
- * In all following functions,
- * the caller shall pass the configured embedded utility memory
- * block base, EUMBBAR.
- **/
-
-/***********************************************************
- * function: I2C_put
- *
- * description:
-   Send a buffer of data to the intended rcv_addr.
- * If stop_flag is set, after the whole buffer
- * is sent, generate a STOP signal provided that the
- * receiver doesn't signal the STOP in the middle.
- * I2C is the master performing transmitting. If
- * no STOP signal is generated at the end of current
- * transaction, the master can generate a START signal
- * to another slave addr.
- *
- * note: this is master xmit API
- *********************************************************/
-static I2CStatus I2C_put (unsigned int eumbbar, unsigned char rcv_addr,	/* receiver's address */
-	  unsigned char *buffer_ptr,	/* pointer of data to be sent */
-	  unsigned int length,	/* number of byte of in the buffer */
-	  unsigned int stop_flag,	/* 1 - signal STOP when buffer is empty
-					 * 0 - no STOP signal when buffer is empty
-					 */
-	  unsigned int is_cnt)
-{					/* 1 - this is a restart, don't check MBB
-					 * 0 - this is a new start, check MBB
-					 */
-	if (buffer_ptr == 0 || length == 0) {
-		return I2CERROR;
-	}
-#ifdef I2CDBG0
-	PRINT ("%s(%d): I2C_put\n", __FILE__, __LINE__);
-#endif
-
-	XmitByte = 0;
-	ByteToXmit = length;
-	XmitBuf = buffer_ptr;
-	XmitBufEmptyStop = stop_flag;
-
-	RcvByte = 0;
-	ByteToRcv = 0;
-	RcvBuf = 0;
-
-	/* we are the master, start transaction */
-	return I2C_Start (eumbbar, rcv_addr, XMIT, is_cnt);
-}
-
-/***********************************************************
- * function: I2C_get
- *
- * description:
- * Receive a buffer of data from the desired sender_addr
- * If stop_flag is set, when the buffer is full and the
- * sender does not signal STOP, generate a STOP signal.
- * I2C is the master performing receiving. If no STOP signal
- * is generated, the master can generate a START signal
- * to another slave addr.
- *
- * note: this is master receive API
- **********************************************************/
-static I2CStatus I2C_get (unsigned int eumbbar, unsigned char rcv_from,	/* sender's address */
-		  unsigned char *buffer_ptr,	/* pointer of receiving buffer */
-		  unsigned int length,	/* length of the receiving buffer */
-		  unsigned int stop_flag,	/* 1 - signal STOP when buffer is full
-						 * 0 - no STOP signal when buffer is full
-						 */
-		  unsigned int is_cnt)
-{						/* 1 - this is a restart, don't check MBB
-						 * 0 - this is a new start, check MBB
-						 */
-	if (buffer_ptr == 0 || length == 0) {
-		return I2CERROR;
-	}
-#ifdef I2CDBG0
-	PRINT ("%s(%d): I2C_get\n", __FILE__, __LINE__);
-#endif
-
-	RcvByte = 0;
-	ByteToRcv = length;
-	RcvBuf = buffer_ptr;
-	RcvBufFulStop = stop_flag;
-
-	XmitByte = 0;
-	ByteToXmit = 0;
-	XmitBuf = 0;
-
-	/* we are the master, start the transaction */
-	return I2C_Start (eumbbar, rcv_from, RCV, is_cnt);
-
-}
-
-#if 0	/* turn off dead code */
-/*********************************************************
- * function: I2C_write
- *
- * description:
- * Send a buffer of data to the requiring master.
- * If stop_flag is set, after the whole buffer is sent,
- * generate a STOP signal provided that the requiring
- * receiver doesn't signal the STOP in the middle.
- * I2C is the slave performing transmitting.
- *
- * Note: this is slave xmit API.
- *
- *       due to the current Kahlua design, slave transmitter
- *       shall not signal STOP since there is no way
- *       for master to detect it, causing I2C bus hung.
- *
- *       For the above reason, the stop_flag is always
- *       set, i.e., 0.
- *
- *       programmer shall use the timer on Kahlua to
- *       control the interval of data byte at the
- *       master side.
- *******************************************************/
-static I2CStatus I2C_write (unsigned int eumbbar, unsigned char *buffer_ptr,	/* pointer of data to be sent */
-		unsigned int length,	/* number of byte of in the buffer */
-		unsigned int stop_flag)
-{					/* 1 - signal STOP when buffer is empty
-					 * 0 - no STOP signal when buffer is empty
-					 */
-	if (buffer_ptr == 0 || length == 0) {
-		return I2CERROR;
-	}
-
-	XmitByte = 0;
-	ByteToXmit = length;
-	XmitBuf = buffer_ptr;
-	XmitBufEmptyStop = 0;	/* in order to avoid bus hung, ignored the user's stop_flag */
-
-	RcvByte = 0;
-	ByteToRcv = 0;
-	RcvBuf = 0;
-
-	/* we are the slave, just wait for being called, or pull */
-	/* I2C_Timer_Event( eumbbar ); */
-}
-
-/******************************************************
- * function: I2C_read
- *
- * description:
- * Receive a buffer of data from the sending master.
- * If stop_flag is set, when the buffer is full and the
- * sender does not signal STOP, generate a STOP signal.
- * I2C is the slave performing receiving.
- *
- * note: this is slave receive API
- ****************************************************/
-static I2CStatus I2C_read (unsigned int eumbbar, unsigned char *buffer_ptr,	/* pointer of receiving buffer */
-		   unsigned int length,	/* length of the receiving buffer */
-		   unsigned int stop_flag)
-{					/* 1 - signal STOP when buffer is full
-					 * 0 - no STOP signal when buffer is full
-					 */
-	if (buffer_ptr == 0 || length == 0) {
-		return I2CERROR;
-	}
-
-	RcvByte = 0;
-	ByteToRcv = length;
-	RcvBuf = buffer_ptr;
-	RcvBufFulStop = stop_flag;
-
-	XmitByte = 0;
-	ByteToXmit = 0;
-	XmitBuf = 0;
-
-	/* wait for master to call us, or poll */
-	/* I2C_Timer_Event( eumbbar ); */
-}
-#endif	/* turn off dead code */
-
-/*********************************************************
- * function: I2c_Timer_Event
- *
- * description:
- * if interrupt is not used, this is the timer event handler.
- * After each fixed time interval, this function can be called
- * to check the I2C status and call appropriate function to
- * handle the status event.
- ********************************************************/
-static I2CStatus I2C_Timer_Event (unsigned int eumbbar,
-				  I2CStatus (*handler) (unsigned int))
-{
-	I2C_STAT stat;
-
-#ifdef I2CDBG0
-	PRINT ("%s(%d): I2C_Timer_Event\n", __FILE__, __LINE__);
-#endif
-
-	stat = I2C_Get_Stat (eumbbar);
-
-	if (stat.mif == 1) {
-		if (handler == 0) {
-			return I2C_ISR (eumbbar);
-		} else {
-			return (*handler) (eumbbar);
-		}
-	}
-
-	return I2CNOEVENT;
-}
-
-
-/****************** Device I/O function *****************/
-
-/******************************************************
- * function: I2C_Start
- *
- * description: Generate a START signal in the desired mode.
- *		I2C is the master.
- *
- *		Return I2CSUCCESS if no error.
- *
- * note:
- ****************************************************/
-static I2CStatus I2C_Start (unsigned int eumbbar, unsigned char slave_addr,	/* address of the receiver */
-			I2C_MODE mode,	/* XMIT(1) - put (write)
-					 * RCV(0)  - get (read)
-					 */
-			unsigned int is_cnt)
-{					/* 1 - this is a restart, don't check MBB
-					 * 0 - this is a new start
-					 */
-	unsigned int tmp = 0;
-	I2C_STAT stat;
-	I2C_CTRL ctrl;
-
-#ifdef I2CDBG0
-	PRINT ("%s(%d): I2C_Start addr 0x%x mode %d cnt %d\n", __FILE__,
-		   __LINE__, slave_addr, mode, is_cnt);
-#endif
-
-	ctrl = I2C_Get_Ctrl (eumbbar);
-
-	/* first make sure I2C has been initialized */
-	if (ctrl.men == 0) {
-		return I2CERROR;
-	}
-
-	/* next make sure bus is idle */
-	stat = I2C_Get_Stat (eumbbar);
-
-	if (is_cnt == 0 && stat.mbb == 1) {
-		/* sorry, we lost */
-		return I2CBUSBUSY;
-	} else if (is_cnt == 1 && stat.mif == 1 && stat.mal == 0) {
-		/* sorry, we lost the bus */
-		return I2CALOSS;
-	}
-
-
-	/* OK, I2C is enabled and we have the bus */
-
-	/* prepare to write the slave address */
-	ctrl.msta = 1;
-	ctrl.mtx = 1;
-	ctrl.txak = 0;
-	ctrl.rsta = is_cnt;		/* set the repeat start bit */
-	I2C_Set_Ctrl (eumbbar, ctrl);
-
-	/* write the slave address and xmit/rcv mode bit */
-	tmp = load_runtime_reg (eumbbar, I2CDR);
-	tmp = (tmp & 0xffffff00) |
-	      ((slave_addr & 0x007f) << 1) |
-	      (mode == XMIT ? 0x0 : 0x1);
-	store_runtime_reg (eumbbar, I2CDR, tmp);
-
-	if (mode == RCV) {
-		MasterRcvAddress = 1;
-	} else {
-		MasterRcvAddress = 0;
-	}
-
-#ifdef I2CDBG0
-	PRINT ("%s(%d): I2C_Start exit\n", __FILE__, __LINE__);
-#endif
-
-	/* wait for the interrupt or poll  */
-	return I2CSUCCESS;
-}
-
-/***********************************************************
- * function: I2c_Stop
- *
- * description: Generate a STOP signal to terminate the master
- *		transaction.
- *		return I2CSUCCESS
- *
- **********************************************************/
-static I2CStatus I2C_Stop (unsigned int eumbbar)
-{
-	I2C_CTRL ctrl;
-
-#ifdef I2CDBG0
-	PRINT ("%s(%d): I2C_Stop enter\n", __FILE__, __LINE__);
-#endif
-
-	ctrl = I2C_Get_Ctrl (eumbbar);
-	ctrl.msta = 0;
-	I2C_Set_Ctrl (eumbbar, ctrl);
-
-#ifdef I2CDBG0
-	PRINT ("%s(%d): I2C_Stop exit\n", __FILE__, __LINE__);
-#endif
-
-	return I2CSUCCESS;
-}
-
-/****************************************************
- * function: I2C_Master_Xmit
- *
- * description: Master sends one byte of data to
- *		slave target
- *
- *		return I2CSUCCESS if the byte transmitted.
- *		Otherwise no-zero
- *
- * Note: condition must meet when this function is called:
- *       I2CSR(MIF) == 1 && I2CSR(MCF)  == 1  && I2CSR(RXAK) == 0
- *       I2CCR(MSTA) == 1  && I2CCR(MTX) == 1
- *
- ***************************************************/
-static I2CStatus I2C_Master_Xmit (unsigned int eumbbar)
-{
-	unsigned int val;
-
-	if (ByteToXmit > 0) {
-
-		if (ByteToXmit == XmitByte) {
-			/* all xmitted */
-			ByteToXmit = 0;
-
-			if (XmitBufEmptyStop == 1) {
-				I2C_Stop (eumbbar);
-			}
-
-			return I2CBUFFEMPTY;
-
-		}
-#ifdef I2CDBG0
-		PRINT ("%s(%d): xmit 0x%02x\n", __FILE__, __LINE__,
-			   *(XmitBuf + XmitByte));
-#endif
-
-		val = *(XmitBuf + XmitByte);
-		val &= 0x000000ff;
-		store_runtime_reg (eumbbar, I2CDR, val);
-		XmitByte++;
-
-		return I2CSUCCESS;
-
-	}
-
-	return I2CBUFFEMPTY;
-}
-
-/***********************************************
- * function: I2C_Master_Rcv
- *
- * description: master reads one byte data
- *		from slave source
- *
- *		return I2CSUCCESS if no error
- *
- * Note: condition must meet when this function is called:
- *       I2CSR(MIF) == 1 && I2CSR(MCF) == 1 &&
- *       I2CCR(MSTA) == 1 && I2CCR(MTX) == 0
- *
- ***********************************************/
-static I2CStatus I2C_Master_Rcv (unsigned int eumbbar)
-{
-	I2C_CTRL ctrl;
-	unsigned int val;
-
-	if (ByteToRcv > 0) {
-
-		if (ByteToRcv - RcvByte == 2 && RcvBufFulStop == 1) {
-			/* master requests more than or equal to 2 bytes
-			 * we are reading 2nd to last byte
-			 */
-
-			/* we need to set I2CCR(TXAK) to generate a STOP */
-			ctrl = I2C_Get_Ctrl (eumbbar);
-			ctrl.txak = 1;
-			I2C_Set_Ctrl (eumbbar, ctrl);
-
-			/* Kahlua will automatically generate a STOP
-			 * next time a transaction happens
-			 */
-
-			/* note: the case of master requesting one byte is
-			 *       handled in I2C_ISR
-			 */
-		}
-
-		/* generat a STOP before reading the last byte */
-		if (RcvByte + 1 == ByteToRcv && RcvBufFulStop == 1) {
-			I2C_Stop (eumbbar);
-		}
-
-		val = load_runtime_reg (eumbbar, I2CDR);
-		*(RcvBuf + RcvByte) = val & 0xFF;
-
-#ifdef I2CDBG0
-		PRINT ("%s(%d): rcv 0x%02x\n", __FILE__, __LINE__,
-			   *(RcvBuf + RcvByte));
-#endif
-
-		RcvByte++;
-
-		if (ByteToRcv == RcvByte) {
-			ByteToRcv = 0;
-
-			return I2CBUFFFULL;
-		}
-
-		return I2CSUCCESS;
-	}
-
-	return I2CBUFFFULL;
-
-}
-
-/****************************************************
- * function: I2C_Slave_Xmit
- *
- * description: Slave sends one byte of data to
- *		requesting destination
- *
- *	  return SUCCESS if the byte transmitted. Otherwise
- *	  No-zero
- *
- * Note: condition must meet when this function is called:
- *       I2CSR(MIF) == 1 && I2CSR(MCF) == 1 &&  I2CSR(RXAK) = 0
- *       I2CCR(MSTA) == 0  && I2CCR(MTX) == 1
- *
- ***************************************************/
-static I2CStatus I2C_Slave_Xmit (unsigned int eumbbar)
-{
-	unsigned int val;
-
-	if (ByteToXmit > 0) {
-
-		if (ByteToXmit == XmitByte) {
-			/* no more data to send */
-			ByteToXmit = 0;
-
-			/*
-			 * do not toggle I2CCR(MTX). Doing so will
-			 * cause bus-hung since current Kahlua design
-			 * does not give master a way to detect slave
-			 * stop. It is always a good idea for master
-			 * to use timer to prevent the long long
-			 * delays
-			 */
-
-			return I2CBUFFEMPTY;
-		}
-#ifdef I2CDBG
-		PRINT ("%s(%d): xmit 0x%02x\n", __FILE__, __LINE__,
-			   *(XmitBuf + XmitByte));
-#endif
-
-		val = *(XmitBuf + XmitByte);
-		val &= 0x000000ff;
-		store_runtime_reg (eumbbar, I2CDR, val);
-		XmitByte++;
-
-		return I2CSUCCESS;
-	}
-
-	return I2CBUFFEMPTY;
-}
-
-/***********************************************
- * function: I2C_Slave_Rcv
- *
- * description: slave reads one byte data
- *		from master source
- *
- *		return I2CSUCCESS if no error otherwise non-zero
- *
- * Note: condition must meet when this function is called:
- *       I2CSR(MIF) == 1 && I2CSR(MCF) == 1 &&
- *       I2CCR(MSTA) == 0 && I2CCR(MTX)  = 0
- *
- ***********************************************/
-static I2CStatus I2C_Slave_Rcv (unsigned int eumbbar)
-{
-	unsigned int val;
-	I2C_CTRL ctrl;
-
-	if (ByteToRcv > 0) {
-		val = load_runtime_reg (eumbbar, I2CDR);
-		*(RcvBuf + RcvByte) = val & 0xff;
-#ifdef I2CDBG
-		PRINT ("%s(%d): rcv 0x%02x\n", __FILE__, __LINE__,
-			   *(RcvBuf + RcvByte));
-#endif
-		RcvByte++;
-
-		if (ByteToRcv == RcvByte) {
-			if (RcvBufFulStop == 1) {
-				/* all done */
-				ctrl = I2C_Get_Ctrl (eumbbar);
-				ctrl.txak = 1;
-				I2C_Set_Ctrl (eumbbar, ctrl);
-			}
-
-			ByteToRcv = 0;
-			return I2CBUFFFULL;
-		}
-
-		return I2CSUCCESS;
-	}
-
-	return I2CBUFFFULL;
-}
-
-/****************** Device Control Function *************/
-
-/*********************************************************
- * function: I2C_Init
- *
- * description: Initialize I2C unit with desired frequency divider,
- *		master's listening address, with interrupt enabled
- *		or disabled.
- *
- * note:
- ********************************************************/
-static I2CStatus I2C_Init (unsigned int eumbbar, unsigned char fdr,	/* frequency divider */
-		   unsigned char slave_addr,	/* driver's address used for receiving */
-		   unsigned int en_int)
-{						/* 1 - enable I2C interrupt
-						 * 0 - disable I2C interrup
-						 */
-	I2C_CTRL ctrl;
-	unsigned int tmp;
-
-#ifdef I2CDBG0
-	PRINT ("%s(%d): I2C_Init enter\n", __FILE__, __LINE__);
-#endif
-
-	ctrl = I2C_Get_Ctrl (eumbbar);
-	/* disable the I2C module before we change everything */
-	ctrl.men = 0;
-	I2C_Set_Ctrl (eumbbar, ctrl);
-
-	/* set the frequency diver */
-	tmp = load_runtime_reg (eumbbar, I2CFDR);
-	tmp = (tmp & 0xffffffc0) | (fdr & 0x3f);
-	store_runtime_reg (eumbbar, I2CFDR, tmp);
-
-	/* Set our listening (slave) address */
-	tmp = load_runtime_reg (eumbbar, I2CADR);
-	tmp = (tmp & 0xffffff01) | ((slave_addr & 0x7f) << 1);
-	store_runtime_reg (eumbbar, I2CADR, tmp);
-
-	/* enable I2C with desired interrupt setting */
-	ctrl.men = 1;
-	ctrl.mien = en_int & 0x1;
-	I2C_Set_Ctrl (eumbbar, ctrl);
-#ifdef I2CDBG0
-	PRINT ("%s(%d): I2C_Init exit\n", __FILE__, __LINE__);
-#endif
-
-	return I2CSUCCESS;
-
-}
-
-/*****************************************
- * function I2c_Get_Stat
- *
- * description: Query I2C Status, i.e., read I2CSR
- *
- ****************************************/
-static I2C_STAT I2C_Get_Stat (unsigned int eumbbar)
-{
-	unsigned int temp;
-	I2C_STAT stat;
-
-	temp = load_runtime_reg (eumbbar, I2CSR);
-
-#ifdef I2CDBG0
-	PRINT ("%s(%d): get stat = 0x%08x\n", __FILE__, __LINE__, temp);
-#endif
-
-	stat.rsrv0 = (temp & 0xffffff00) >> 8;
-	stat.mcf   = (temp & 0x00000080) >> 7;
-	stat.maas  = (temp & 0x00000040) >> 6;
-	stat.mbb   = (temp & 0x00000020) >> 5;
-	stat.mal   = (temp & 0x00000010) >> 4;
-	stat.rsrv1 = (temp & 0x00000008) >> 3;
-	stat.srw   = (temp & 0x00000004) >> 2;
-	stat.mif   = (temp & 0x00000002) >> 1;
-	stat.rxak  = (temp & 0x00000001);
-	return stat;
-}
-
-/*********************************************
- * function: I2c_Set_Ctrl
- *
- * description: Change I2C Control bits,
- *		i.e., write to I2CCR
- *
- ********************************************/
-static void I2C_Set_Ctrl (unsigned int eumbbar, I2C_CTRL ctrl)
-{						/* new control value */
-	unsigned int temp = load_runtime_reg (eumbbar, I2CCR);
-
-	temp &= 0xffffff03;
-	temp |= ((ctrl.men  & 0x1) << 7);
-	temp |= ((ctrl.mien & 0x1) << 6);
-	temp |= ((ctrl.msta & 0x1) << 5);
-	temp |= ((ctrl.mtx  & 0x1) << 4);
-	temp |= ((ctrl.txak & 0x1) << 3);
-	temp |= ((ctrl.rsta & 0x1) << 2);
-#ifdef I2CDBG0
-	PRINT ("%s(%d): set ctrl = 0x%08x\n", __FILE__, __LINE__, temp);
-#endif
-	store_runtime_reg (eumbbar, I2CCR, temp);
-
-}
-
-/*****************************************
- * function: I2C_Get_Ctrl
- *
- * description: Query I2C Control bits,
- *		i.e., read I2CCR
- *****************************************/
-static I2C_CTRL I2C_Get_Ctrl (unsigned int eumbbar)
-{
-	union {
-		I2C_CTRL ctrl;
-		unsigned int temp;
-	} s;
-
-	s.temp = load_runtime_reg (eumbbar, I2CCR);
-#ifdef I2CDBG0
-	PRINT ("%s(%d): get ctrl = 0x%08x\n", __FILE__, __LINE__, s.temp);
-#endif
-
-	return s.ctrl;
-}
-
-
-/****************************************
- * function: I2C_Slave_Addr
- *
- * description: Process slave address phase.
- *		return I2CSUCCESS if no error
- *
- * note: Precondition for calling this function:
- *       I2CSR(MIF) == 1 &&
- *       I2CSR(MAAS) == 1
- ****************************************/
-static I2CStatus I2C_Slave_Addr (unsigned int eumbbar)
-{
-	I2C_STAT stat = I2C_Get_Stat (eumbbar);
-	I2C_CTRL ctrl = I2C_Get_Ctrl (eumbbar);
-
-	if (stat.srw == 1) {
-		/* we are asked to xmit */
-		ctrl.mtx = 1;
-		I2C_Set_Ctrl (eumbbar, ctrl);	/* set MTX */
-		return I2C_Slave_Xmit (eumbbar);
-	}
-
-	/* we are asked to receive data */
-	ctrl.mtx = 0;
-	I2C_Set_Ctrl (eumbbar, ctrl);
-	(void) load_runtime_reg (eumbbar, I2CDR);	/* do a fake read to start */
-
-	return I2CADDRESS;
-}
-
-/***********************************************
- * function: I2C_ISR
- *
- * description: I2C Interrupt service routine
- *
- * note: Precondition:
- *      I2CSR(MIF) == 1
- **********************************************/
-static I2CStatus I2C_ISR (unsigned int eumbbar)
-{
-	I2C_STAT stat;
-	I2C_CTRL ctrl;
-
-#ifdef I2CDBG0
-	PRINT ("%s(%d): I2C_ISR\n", __FILE__, __LINE__);
-#endif
-
-	stat = I2C_Get_Stat (eumbbar);
-	ctrl = I2C_Get_Ctrl (eumbbar);
-
-	/* clear MIF */
-	stat.mif = 0;
-
-	/* Now let see what kind of event this is */
-	if (stat.mcf == 1) {
-		/* transfer compete */
-
-		/* clear the MIF bit */
-		I2C_Set_Stat (eumbbar, stat);
-
-		if (ctrl.msta == 1) {
-			/* master */
-			if (ctrl.mtx == 1) {
-				/* check if this is the address phase for master receive */
-				if (MasterRcvAddress == 1) {
-					/* Yes, it is the address phase of master receive */
-					ctrl.mtx = 0;
-					/* now check how much we want to receive */
-					if (ByteToRcv == 1 && RcvBufFulStop == 1) {
-						ctrl.txak = 1;
-					}
-
-					I2C_Set_Ctrl (eumbbar, ctrl);
-					(void) load_runtime_reg (eumbbar, I2CDR);	/* fake read first */
-
-					MasterRcvAddress = 0;
-					return I2CADDRESS;
-
-				}
-
-				/* master xmit */
-				if (stat.rxak == 0) {
-					/* slave has acknowledged */
-					return I2C_Master_Xmit (eumbbar);
-				}
-
-				/* slave has not acknowledged yet, generate a STOP */
-				if (XmitBufEmptyStop == 1) {
-					ctrl.msta = 0;
-					I2C_Set_Ctrl (eumbbar, ctrl);
-				}
-
-				return I2CSUCCESS;
-			}
-
-			/* master receive */
-			return I2C_Master_Rcv (eumbbar);
-		}
-
-		/* slave */
-		if (ctrl.mtx == 1) {
-			/* slave xmit */
-			if (stat.rxak == 0) {
-				/* master has acknowledged */
-				return I2C_Slave_Xmit (eumbbar);
-			}
-
-			/* master has not acknowledged, wait for STOP */
-			/* do nothing for preventing bus from hung */
-			return I2CSUCCESS;
-		}
-
-		/* slave rcv */
-		return I2C_Slave_Rcv (eumbbar);
-
-	} else if (stat.maas == 1) {
-		/* received a call from master */
-
-		/* clear the MIF bit */
-		I2C_Set_Stat (eumbbar, stat);
-
-		/* master is calling us, process the address phase */
-		return I2C_Slave_Addr (eumbbar);
-	} else {
-		/* has to be arbitration lost */
-		stat.mal = 0;
-		I2C_Set_Stat (eumbbar, stat);
-
-		ctrl.msta = 0;			/* return to receive mode */
-		I2C_Set_Ctrl (eumbbar, ctrl);
-	}
-
-	return I2CSUCCESS;
-
-}
-
-/******************************************************
- * function: I2C_Set_Stat
- *
- * description: modify the I2CSR
- *
- *****************************************************/
-static void I2C_Set_Stat (unsigned int eumbbar, I2C_STAT stat)
-{
-	union {
-		unsigned int val;
-		I2C_STAT stat;
-	} s_tmp;
-	union {
-		unsigned int val;
-		I2C_STAT stat;
-	} s;
-
-	s.val = load_runtime_reg (eumbbar, I2CSR);
-	s.val &= 0xffffff08;
-	s_tmp.stat = stat;
-	s.val |= (s_tmp.val & 0xf7);
-
-#ifdef I2CDBG0
-	PRINT ("%s(%d): set stat = 0x%08x\n", __FILE__, __LINE__, s.val);
-#endif
-
-	store_runtime_reg (eumbbar, I2CSR, s.val);
-
-}
-
-/******************************************************
- * The following are routines to glue the rest of
- * U-Boot to the Sandpoint I2C driver.
- *****************************************************/
-
-void i2c_init (int speed, int slaveadd)
-{
-#ifdef CFG_I2C_INIT_BOARD
-	/*
-	 * call board specific i2c bus reset routine before accessing the
-	 * environment, which might be in a chip on that bus. For details
-	 * about this problem see doc/I2C_Edge_Conditions.
-	 */
-	i2c_init_board();
-#endif
-
-#ifdef DEBUG
-	I2C_Initialize (0x7f, 0, (void *) printf);
-#else
-	I2C_Initialize (0x7f, 0, 0);
-#endif
-}
-
-int i2c_probe (uchar chip)
-{
-	int tmp;
-
-	/*
-	 * Try to read the first location of the chip.  The underlying
-	 * driver doesn't appear to support sending just the chip address
-	 * and looking for an <ACK> back.
-	 */
-	udelay(10000);
-	return i2c_read (chip, 0, 1, (char *)&tmp, 1);
-}
-
-int i2c_read (uchar chip, uint addr, int alen, uchar * buffer, int len)
-{
-	I2CStatus status;
-	uchar xaddr[4];
-
-	if (alen > 0) {
-		xaddr[0] = (addr >> 24) & 0xFF;
-		xaddr[1] = (addr >> 16) & 0xFF;
-		xaddr[2] = (addr >> 8) & 0xFF;
-		xaddr[3] = addr & 0xFF;
-
-		status = I2C_do_buffer (0, I2C_MASTER_XMIT, chip, alen,
-					&xaddr[4 - alen], I2C_NO_STOP, 1,
-					I2C_NO_RESTART);
-		if (status != I2C_SUCCESS) {
-			PRINT ("i2c_read: can't send data address for read\n");
-			return 1;
-		}
-	}
-
-	/* The data transfer will be a continuation. */
-	status = I2C_do_buffer (0, I2C_MASTER_RCV, chip, len,
-				buffer, I2C_STOP, 1, (alen > 0 ? I2C_RESTART :
-				I2C_NO_RESTART));
-
-	if (status != I2C_SUCCESS) {
-		PRINT ("i2c_read: can't perform data transfer\n");
-		return 1;
-	}
-
-	return 0;
-}
-
-int i2c_write (uchar chip, uint addr, int alen, uchar * buffer, int len)
-{
-	I2CStatus status;
-	uchar dummy_buffer[I2C_RXTX_LEN + 2];
-	uchar *p;
-	int i;
-
-	/* fill in address in big endian order */
-	for (i=alen-1; i>=0; --i) {
-		buffer[i] = addr & 0xFF;
-		addr >>= 8;
-	}
-	/* fill in data */
-	p = dummy_buffer + alen;
-
-	for (i=0; i<len; ++i)
-		*p++ = *buffer++;
-
-	status = I2C_do_buffer (0, I2C_MASTER_XMIT, chip, alen + len,
-				dummy_buffer, I2C_STOP, 1, I2C_NO_RESTART);
-
-#ifdef CFG_EEPROM_PAGE_WRITE_DELAY_MS
-	udelay(CFG_EEPROM_PAGE_WRITE_DELAY_MS * 1000);
-#endif
-	if (status != I2C_SUCCESS) {
-		PRINT ("i2c_write: can't perform data transfer\n");
-		return 1;
-	}
-
-	return 0;
-}
-
-uchar i2c_reg_read (uchar i2c_addr, uchar reg)
-{
-	char buf[1];
-
-	i2c_init (0, 0);
-
-	i2c_read (i2c_addr, reg, 1, buf, 1);
-
-	return (buf[0]);
-}
-
-void i2c_reg_write (uchar i2c_addr, uchar reg, uchar val)
-{
-	i2c_init (0, 0);
-
-	i2c_write (i2c_addr, reg, 1, &val, 1);
-}
-
-#endif	/* CONFIG_HARD_I2C */

cpu/mpc824x/drivers/i2c/i2c2.S

@@ -1,52 +0,0 @@
-/**************************************
- *
- * copyright @ Motorola, 1999
- *
- **************************************/
-
-#include <config.h>
-#ifdef CONFIG_HARD_I2C
-#include <ppc_asm.tmpl>
-#include <asm/mmu.h>
-/**********************************************************
- * function: load_runtime_reg
- *
- * input:  r3 - value of eumbbar
- *         r4 - register offset in embedded utility space
- *
- * output: r3 - register content
- **********************************************************/
-	.text
-	.align 2
-	.global load_runtime_reg
-load_runtime_reg:
-
-/*	xor r5,r5,r5
- *	or  r5,r5,r3
- *
- *	lwbrx	r3,r4,r5
- */
-	lwbrx r3,r4,r3
-	sync
-
-	bclr 20, 0
-
-/****************************************************************
- * function: store_runtime_reg
- *
- * input: r3 - value of eumbbar
- *        r4 - register offset in embedded utility space
- *        r5 - new value to be stored
- *
- ****************************************************************/
-	.text
-	.align 2
-	.global store_runtime_reg
-store_runtime_reg:
-
-	stwbrx r5,  r4, r3
-	sync
-
-	bclr   20,0
-
-#endif /* CONFIG_HARD_I2C */

cpu/mpc824x/drivers/i2c/i2c_export.h

@@ -1,103 +0,0 @@
-#ifndef I2C_EXPORT_H
-#define I2C_EXPORT_H
-
-/****************************************************
- *
- * Copyright Motrola 1999
- *
- ****************************************************/
-
-/* These are the defined return values for the I2C_do_transaction function.
- * Any non-zero value indicates failure.  Failure modes can be added for
- * more detailed error reporting.
- */
-typedef enum _i2c_status
-{
- I2C_SUCCESS     = 0,
- I2C_ERROR,
-} I2C_Status;
-
-/* These are the defined tasks for I2C_do_transaction.
- * Modes for SLAVE_RCV and SLAVE_XMIT will be added.
- */
-typedef enum _i2c_transaction_mode
-{
-	I2C_MASTER_RCV =  0,
-	I2C_MASTER_XMIT = 1,
-} I2C_TRANSACTION_MODE;
-
-typedef enum _i2c_interrupt_mode
-{
-	I2C_INT_DISABLE =  0,
-	I2C_INT_ENABLE = 1,
-} I2C_INTERRUPT_MODE;
-
-typedef enum _i2c_stop
-{
-	I2C_NO_STOP =  0,
-	I2C_STOP = 1,
-} I2C_STOP_MODE;
-
-typedef enum _i2c_restart
-{
-	I2C_NO_RESTART =  0,
-	I2C_RESTART = 1,
-} I2C_RESTART_MODE;
-
-/******************** App. API ********************
- * The application API is for user level application
- * to use the functionality provided by I2C driver.
- * This is a "generic" I2C interface, it should contain
- * nothing specific to the Kahlua implementation.
- * Only the generic functions are exported by the library.
- *
- * Note: Its App.s responsibility to swap the data
- *       byte. In our API, we just transfer whatever
- *       we are given
- **************************************************/
-
-
-/*  Initialize I2C unit with the following:
- *  driver's slave address
- *  interrupt enabled
- *  optional pointer to application layer print function
- *
- *  These parameters may be added:
- *  desired clock rate
- *  digital filter frequency sampling rate
- *
- *  This function must be called before I2C unit can be used.
- */
-extern I2C_Status I2C_Initialize(
-	unsigned char addr,            /* driver's I2C slave address */
-	I2C_INTERRUPT_MODE en_int,     /* 1 - enable I2C interrupt
-					* 0 - disable I2C interrupt
-					*/
-	int (*app_print_function)(char *,...)); /* pointer to optional "printf"
-						 * provided by application
-						 */
-
-/* Perform the given I2C transaction, only MASTER_XMIT and MASTER_RCV
- * are implemented.  Both are only in polling mode.
- *
- * en_int controls interrupt/polling mode
- * act is the type of transaction
- * addr is the I2C address of the slave device
- * len is the length of data to send or receive
- * buffer is the address of the data buffer
- * stop = I2C_NO_STOP, don't signal STOP at end of transaction
- *        I2C_STOP, signal STOP at end of transaction
- * retry is the timeout retry value, currently ignored
- * rsta = I2C_NO_RESTART, this is not continuation of existing transaction
- *        I2C_RESTART, this is a continuation of existing transaction
- */
-extern I2C_Status I2C_do_transaction( I2C_INTERRUPT_MODE en_int,
-				      I2C_TRANSACTION_MODE act,
-				      unsigned char i2c_addr,
-				      unsigned char data_addr,
-				      int len,
-				      char *buffer,
-				      I2C_STOP_MODE stop,
-				      int retry,
-				      I2C_RESTART_MODE rsta);
-#endif

cpu/mpc824x/start.S

@@ -526,11 +526,26 @@ relocate_code:
 	stwu	r0,-4(r7)
 	bdnz	3b
 
+4:
+#if !defined(CONFIG_BMW)
+/* Unlock the data cache and invalidate locked area */
+	xor	r0, r0, r0
+	mtspr	1011, r0
+	lis	r4, CFG_INIT_RAM_ADDR@h
+	ori	r4, r4, CFG_INIT_RAM_ADDR@l
+	li	r0, 128
+	mtctr	r0
+41:
+	dcbi	r0, r4
+	addi	r4, r4, 32
+	bdnz	41b
+#endif
+
 /*
  * Now flush the cache: note that we must start from a cache aligned
  * address. Otherwise we might miss one cache line.
  */
-4:	cmpwi	r6,0
+	cmpwi	r6,0
 	add	r5,r3,r5
 	beq	7f		/* Always flush prefetch queue in any case */
 	subi	r0,r6,1

cpu/pxa/mmc.c

@@ -26,11 +26,19 @@
 #include <mmc.h>
 #include <asm/errno.h>
 #include <asm/arch/hardware.h>
+#include <part.h>
 
 #ifdef CONFIG_MMC
 
 extern int
-fat_register_read(int(*block_read)(int device, ulong blknr, ulong blkcnt, uchar *buffer));
+fat_register_device(block_dev_desc_t *dev_desc, int part_no);
+
+static block_dev_desc_t mmc_dev;
+
+block_dev_desc_t * mmc_get_dev(int dev)
+{
+	return ((block_dev_desc_t *)&mmc_dev);
+}
 
 /*
  * FIXME needs to read cid and csd info to determine block size
@@ -379,9 +387,9 @@ mmc_write(uchar *src, ulong dst, int size)
 	return 0;
 }
 
-int
+ulong
 /****************************************************/
-mmc_bread(int dev_num, ulong blknr, ulong blkcnt, uchar *dst)
+mmc_bread(int dev_num, ulong blknr, ulong blkcnt, ulong *dst)
 /****************************************************/
 {
 	int mmc_block_size = MMC_BLOCK_SIZE;
@@ -441,6 +449,21 @@ mmc_init(int verbose)
 			printf("Month = %d\n",cid->month);
 			printf("Year = %d\n",1997 + cid->year);
 		}
+		/* fill in device description */
+		mmc_dev.if_type = IF_TYPE_MMC;
+		mmc_dev.dev = 0;
+		mmc_dev.lun = 0;
+		mmc_dev.type = 0;
+		/* FIXME fill in the correct size (is set to 32MByte) */
+		mmc_dev.blksz = 512;
+		mmc_dev.lba = 0x10000;
+		sprintf(mmc_dev.vendor,"Man %02x%02x%02x Snr %02x%02x%02x",
+				cid->id[0], cid->id[1], cid->id[2],
+				cid->sn[0], cid->sn[1], cid->sn[2]);
+		sprintf(mmc_dev.product,"%s",cid->name);
+		sprintf(mmc_dev.revision,"%x %x",cid->hwrev, cid->fwrev);
+		mmc_dev.removable = 0;
+		mmc_dev.block_read = mmc_bread;
 
 		/* MMC exists, get CSD too */
 		resp = mmc_cmd(MMC_CMD_SET_RCA, MMC_DEFAULT_RCA, 0, MMC_CMDAT_R1);
@@ -458,7 +481,7 @@ mmc_init(int verbose)
 	MMC_CLKRT = 0;	/* 20 MHz */
 	resp = mmc_cmd(7, MMC_DEFAULT_RCA, 0, MMC_CMDAT_R1);
 
-	fat_register_read(mmc_bread);
+	fat_register_device(&mmc_dev,1); /* partitions start counting with 1 */ 
 
 	return rc;
 }

disk/part_dos.c

@@ -67,6 +67,17 @@ static void print_one_part (dos_partition_t *p, int ext_part_sector, int part_nu
 		(is_extended (p->sys_ind) ? " Extd" : ""));
 }
 
+static int test_block_type(unsigned char *buffer)
+{
+	if((buffer[DOS_PART_MAGIC_OFFSET + 0] != 0x55) ||
+	    (buffer[DOS_PART_MAGIC_OFFSET + 1] != 0xaa) ) {
+		return (-1);
+	} /* no DOS Signature at all */
+	if(strncmp(&buffer[DOS_PBR_FSTYPE_OFFSET],"FAT",3)==0)
+		return DOS_PBR; /* is PBR */
+	return DOS_MBR;	    /* Is MBR */
+}
+
 
 int test_part_dos (block_dev_desc_t *dev_desc)
 {
@@ -94,14 +105,18 @@ static void print_partition_extended (block_dev_desc_t *dev_desc, int ext_part_s
 			dev_desc->dev, ext_part_sector);
 		return;
 	}
-	if (buffer[DOS_PART_MAGIC_OFFSET] != 0x55 ||
-		buffer[DOS_PART_MAGIC_OFFSET + 1] != 0xaa) {
+	i=test_block_type(buffer);
+	if(i==-1) {
 		printf ("bad MBR sector signature 0x%02x%02x\n",
 			buffer[DOS_PART_MAGIC_OFFSET],
 			buffer[DOS_PART_MAGIC_OFFSET + 1]);
 		return;
 	}
-
+	if(i==DOS_PBR) {
+		printf ("    1\t\t         0\t%10ld\t%2x\n",
+			dev_desc->lba, buffer[DOS_PBR_MEDIA_TYPE_OFFSET]);
+		return;
+	}
 	/* Print all primary/logical partitions */
 	pt = (dos_partition_t *) (buffer + DOS_PART_TBL_OFFSET);
 	for (i = 0; i < 4; i++, pt++) {

disk/part_dos.h

@@ -34,6 +34,10 @@
 #endif
 #define DOS_PART_TBL_OFFSET	0x1be
 #define DOS_PART_MAGIC_OFFSET	0x1fe
+#define DOS_PBR_FSTYPE_OFFSET	0x36
+#define DOS_PBR_MEDIA_TYPE_OFFSET	0x15
+#define DOS_MBR	0
+#define DOS_PBR	1
 
 typedef struct dos_partition {
 	unsigned char boot_ind;		/* 0x80 - active			*/

fs/fat/fat.c

@@ -29,6 +29,7 @@
 #include <config.h>
 #include <fat.h>
 #include <asm/byteorder.h>
+#include <part.h>
 
 #if (CONFIG_COMMANDS & CFG_CMD_FAT)
 
@@ -44,26 +45,70 @@ downcase(char *str)
 	}
 }
 
-int (*dev_block_read)(int device, __u32 blknr, __u32 blkcnt, __u8 *buffer) = 0;
+static  block_dev_desc_t *cur_dev = NULL;
+static unsigned long part_offset = 0;
+static int cur_part = 1;
+
+#define DOS_PART_TBL_OFFSET	0x1be
+#define DOS_PART_MAGIC_OFFSET	0x1fe
+#define DOS_FS_TYPE_OFFSET	0x36
 
 int disk_read (__u32 startblock, __u32 getsize, __u8 * bufptr)
 {
-	/* FIXME we need to determine the start block of the
-	 * partition where the DOS FS resides
-	 */
-	startblock += 32;
-
-	if (dev_block_read) {
-		return dev_block_read (0, startblock, getsize, bufptr);
+	startblock += part_offset;
+	if (cur_dev == NULL)
+		return -1;
+	if (cur_dev->block_read) {
+		return cur_dev->block_read (cur_dev->dev, startblock, getsize, (unsigned long *)bufptr);
 	}
 	return -1;
 }
 
 
 int
-fat_register_read (int (*block_read)(int, __u32, __u32, __u8 *))
+fat_register_device(block_dev_desc_t *dev_desc, int part_no)
 {
-	dev_block_read = block_read;
+	unsigned char buffer[SECTOR_SIZE];
+
+	if (!dev_desc->block_read)
+		return -1;
+	cur_dev=dev_desc;
+	/* check if we have a MBR (on floppies we have only a PBR) */
+	if (dev_desc->block_read (dev_desc->dev, 0, 1, (ulong *) buffer) != 1) {
+		printf ("** Can't read from device %d **\n", dev_desc->dev);
+		return -1;
+	}
+	if (buffer[DOS_PART_MAGIC_OFFSET] != 0x55 ||
+		buffer[DOS_PART_MAGIC_OFFSET + 1] != 0xaa) {
+		/* no signature found */
+		return -1;
+	}
+	if(!strncmp(&buffer[DOS_FS_TYPE_OFFSET],"FAT",3)) {
+		/* ok, we assume we are on a PBR only */
+		cur_part = 1;
+		part_offset=0;
+	}
+	else {
+#if (CONFIG_COMMANDS & CFG_CMD_IDE) || (CONFIG_COMMANDS & CFG_CMD_SCSI)
+		disk_partition_t info;
+		if(!get_partition_info(dev_desc, part_no, &info)) {
+			part_offset = info.start;
+			cur_part = part_no;
+		}
+		else {
+			printf ("** Partition %d not valid on device %d **\n",part_no,dev_desc->dev);
+			return -1;
+		}
+#else
+		/* FIXME we need to determine the start block of the
+		 * partition where the DOS FS resides. This can be done
+		 * by using the get_partition_info routine. For this
+		 * purpose the libpart must be included.
+		 */
+		part_offset=32;
+		cur_part = 1;
+#endif
+	}
 	return 0;
 }
 
@@ -246,25 +291,21 @@ get_cluster(fsdata *mydata, __u32 clustnum, __u8 *buffer, unsigned long size)
 	}
 
 	FAT_DPRINT("gc - clustnum: %d, startsect: %d\n", clustnum, startsect);
-	while (size > 0) {
-		if (size >= FS_BLOCK_SIZE) {
-			if (disk_read(startsect + idx, 1, buffer) < 0) {
-				FAT_DPRINT("Error reading data\n");
-				return -1;
-			}
-		} else {
-			__u8 tmpbuf[FS_BLOCK_SIZE];
-			if (disk_read(startsect + idx, 1, tmpbuf) < 0) {
-				FAT_DPRINT("Error reading data\n");
-				return -1;
-			}
-			memcpy(buffer, tmpbuf, size);
-
-			return 0;
+	if (disk_read(startsect, size/FS_BLOCK_SIZE , buffer) < 0) {
+		FAT_DPRINT("Error reading data\n");
+		return -1;
+	}
+	if(size % FS_BLOCK_SIZE) {
+		__u8 tmpbuf[FS_BLOCK_SIZE];
+		idx= size/FS_BLOCK_SIZE;
+		if (disk_read(startsect + idx, 1, tmpbuf) < 0) {
+			FAT_DPRINT("Error reading data\n");
+			return -1;
 		}
-		buffer += FS_BLOCK_SIZE;
-		size -= FS_BLOCK_SIZE;
-		idx++;
+		buffer += idx*FS_BLOCK_SIZE;
+
+		memcpy(buffer, tmpbuf, size % FS_BLOCK_SIZE);
+		return 0;
 	}
 
 	return 0;
@@ -283,6 +324,8 @@ get_contents(fsdata *mydata, dir_entry *dentptr, __u8 *buffer,
 	unsigned long filesize = FAT2CPU32(dentptr->size), gotsize = 0;
 	unsigned int bytesperclust = mydata->clust_size * SECTOR_SIZE;
 	__u32 curclust = START(dentptr);
+	__u32 endclust, newclust;
+	unsigned long actsize;
 
 	FAT_DPRINT("Filesize: %ld bytes\n", filesize);
 
@@ -290,25 +333,56 @@ get_contents(fsdata *mydata, dir_entry *dentptr, __u8 *buffer,
 
 	FAT_DPRINT("Reading: %ld bytes\n", filesize);
 
+	actsize=bytesperclust;
+	endclust=curclust;
 	do {
-		int getsize = (filesize > bytesperclust) ? bytesperclust :
-			filesize;
-
-		if (get_cluster(mydata, curclust, buffer, getsize) != 0) {
+		/* search for consecutive clusters */
+		while(actsize < filesize) {
+			newclust = get_fatent(mydata, endclust);
+			if((newclust -1)!=endclust)
+				goto getit;
+			if (newclust <= 0x0001 || newclust >= 0xfff0) {
+				FAT_DPRINT("curclust: 0x%x\n", newclust);
+				FAT_DPRINT("Invalid FAT entry\n");
+				return gotsize;
+			}
+			endclust=newclust;
+			actsize+= bytesperclust;
+		}
+		/* actsize >= file size */
+		actsize -= bytesperclust;
+		/* get remaining clusters */
+		if (get_cluster(mydata, curclust, buffer, (int)actsize) != 0) {
 			FAT_ERROR("Error reading cluster\n");
 			return -1;
 		}
-		gotsize += getsize;
-		filesize -= getsize;
-		if (filesize <= 0) return gotsize;
-		buffer += getsize;
-
-		curclust = get_fatent(mydata, curclust);
+		/* get remaining bytes */
+		gotsize += (int)actsize;
+		filesize -= actsize;
+		buffer += actsize;
+		actsize= filesize;
+		if (get_cluster(mydata, endclust, buffer, (int)actsize) != 0) {
+			FAT_ERROR("Error reading cluster\n");
+			return -1;
+		}
+		gotsize+=actsize;
+		return gotsize;
+getit:
+		if (get_cluster(mydata, curclust, buffer, (int)actsize) != 0) {
+			FAT_ERROR("Error reading cluster\n");
+			return -1;
+		}
+		gotsize += (int)actsize;
+		filesize -= actsize;
+		buffer += actsize;
+		curclust = get_fatent(mydata, endclust);
 		if (curclust <= 0x0001 || curclust >= 0xfff0) {
 			FAT_DPRINT("curclust: 0x%x\n", curclust);
 			FAT_ERROR("Invalid FAT entry\n");
 			return gotsize;
 		}
+		actsize=bytesperclust;
+		endclust=curclust;
 	} while (1);
 }
 
@@ -641,7 +715,7 @@ static long
 do_fat_read (const char *filename, void *buffer, unsigned long maxsize,
 	     int dols)
 {
-    __u8 block[FS_BLOCK_SIZE];  /* Block buffer */
+    __u8 block[MAX_CLUSTSIZE];  /* Block buffer */
     char fnamecopy[2048];
     boot_sector bs;
     volume_info volinfo;
@@ -713,7 +787,7 @@ do_fat_read (const char *filename, void *buffer, unsigned long maxsize,
     while (1) {
 	int i;
 
-	if (disk_read (cursect, 1, block) < 0) {
+	if (disk_read (cursect, mydata->clust_size, block) < 0) {
 	    FAT_DPRINT ("Error: reading rootdir block\n");
 	    return -1;
 	}
@@ -880,8 +954,35 @@ file_fat_detectfs(void)
 	boot_sector	bs;
 	volume_info	volinfo;
 	int		fatsize;
+	char	vol_label[12];
 
-	return read_bootsectandvi(&bs, &volinfo, &fatsize);
+	if(cur_dev==NULL) {
+		printf("No current device\n");
+		return 1;
+	}
+#if (CONFIG_COMMANDS & CFG_CMD_IDE) || (CONFIG_COMMANDS & CFG_CMD_SCSI)
+	printf("Interface:  ");
+	switch(cur_dev->if_type) {
+		case IF_TYPE_IDE :	printf("IDE"); break;
+		case IF_TYPE_SCSI :	printf("SCSI"); break;
+		case IF_TYPE_ATAPI :	printf("ATAPI"); break;
+		case IF_TYPE_USB :	printf("USB"); break;
+		case IF_TYPE_DOC :	printf("DOC"); break;
+		case IF_TYPE_MMC :	printf("MMC"); break;
+		default :		printf("Unknown");
+	}
+	printf("\n  Device %d: ",cur_dev->dev);
+	dev_print(cur_dev);
+#endif
+	if(read_bootsectandvi(&bs, &volinfo, &fatsize)) {
+		printf("\nNo valid FAT fs found\n");
+		return 1;
+	}
+	memcpy (vol_label, volinfo.volume_label, 11);
+	vol_label[11] = '\0';
+	volinfo.fs_type[5]='\0';
+	printf("Partition %d: Filesystem: %s \"%s\"\n",cur_part,volinfo.fs_type,vol_label);
+	return 0;
 }
 
 
@@ -895,6 +996,7 @@ file_fat_ls(const char *dir)
 long
 file_fat_read(const char *filename, void *buffer, unsigned long maxsize)
 {
+	printf("reading %s\n",filename);
 	return do_fat_read(filename, buffer, maxsize, LS_NO);
 }
 

fs/jffs2/jffs2_1pass.c

@@ -1,4 +1,3 @@
-/* vi: set sw=4 ts=4: */
 /*
 -------------------------------------------------------------------------
  * Filename:      jffs2.c
@@ -265,20 +264,56 @@ insert_node(struct b_list *list, u32 offset)
 }
 
 #ifdef CFG_JFFS2_SORT_FRAGMENTS
+/* Sort data entries with the latest version last, so that if there
+ * is overlapping data the latest version will be used.
+ */
 static int compare_inodes(struct b_node *new, struct b_node *old)
 {
 	struct jffs2_raw_inode *jNew = (struct jffs2_raw_inode *)new->offset;
 	struct jffs2_raw_inode *jOld = (struct jffs2_raw_inode *)old->offset;
 
-	return jNew->version < jOld->version;
+	return jNew->version > jOld->version;
 }
 
+/* Sort directory entries so all entries in the same directory
+ * with the same name are grouped together, with the latest version
+ * last. This makes it easy to eliminate all but the latest version
+ * by marking the previous version dead by setting the inode to 0.
+ */
 static int compare_dirents(struct b_node *new, struct b_node *old)
 {
 	struct jffs2_raw_dirent *jNew = (struct jffs2_raw_dirent *)new->offset;
 	struct jffs2_raw_dirent *jOld = (struct jffs2_raw_dirent *)old->offset;
-
-	return jNew->version > jOld->version;
+	int cmp;
+
+	/* ascending sort by pino */
+	if (jNew->pino != jOld->pino)
+		return jNew->pino > jOld->pino;
+
+	/* pino is the same, so use ascending sort by nsize, so
+	 * we don't do strncmp unless we really must.
+	 */
+	if (jNew->nsize != jOld->nsize)
+		return jNew->nsize > jOld->nsize;
+
+	/* length is also the same, so use ascending sort by name
+	 */
+	cmp = strncmp(jNew->name, jOld->name, jNew->nsize);
+	if (cmp != 0)
+		return cmp > 0;
+
+	/* we have duplicate names in this directory, so use ascending
+	 * sort by version
+	 */
+	if (jNew->version > jOld->version) {
+		/* since jNew is newer, we know jOld is not valid, so
+		 * mark it with inode 0 and it will not be used
+		 */
+		jOld->ino = 0;
+		return 1;
+	}
+	
+	return 0;
 }
 #endif
 
@@ -327,12 +362,31 @@ jffs2_1pass_read_inode(struct b_lists *pL, u32 inode, char *dest)
 	struct b_node *b;
 	struct jffs2_raw_inode *jNode;
 	u32 totalSize = 0;
-	u16 latestVersion = 0;
+	u32 latestVersion = 0;
 	char *lDest;
 	char *src;
 	long ret;
 	int i;
 	u32 counter = 0;
+#ifdef CFG_JFFS2_SORT_FRAGMENTS
+	/* Find file size before loading any data, so fragments that
+	 * start past the end of file can be ignored. A fragment
+	 * that is partially in the file is loaded, so extra data may
+	 * be loaded up to the next 4K boundary above the file size.
+	 * This shouldn't cause trouble when loading kernel images, so
+	 * we will live with it.
+	 */
+	for (b = pL->frag.listHead; b != NULL; b = b->next) {
+		jNode = (struct jffs2_raw_inode *) (b->offset);
+		if ((inode == jNode->ino)) {
+			/* get actual file length from the newest node */
+			if (jNode->version >= latestVersion) {
+				totalSize = jNode->isize;
+				latestVersion = jNode->version;
+			}
+		}
+	}
+#endif
 
 	for (b = pL->frag.listHead; b != NULL; b = b->next) {
 		jNode = (struct jffs2_raw_inode *) (b->offset);
@@ -349,11 +403,14 @@ jffs2_1pass_read_inode(struct b_lists *pL, u32 inode, char *dest)
 			putLabeledWord("read_inode: usercompr = ", jNode->usercompr);
 			putLabeledWord("read_inode: flags = ", jNode->flags);
 #endif
+
+#ifndef CFG_JFFS2_SORT_FRAGMENTS
 			/* get actual file length from the newest node */
 			if (jNode->version >= latestVersion) {
 				totalSize = jNode->isize;
 				latestVersion = jNode->version;
 			}
+#endif
 
 			if(dest) {
 				src = ((char *) jNode) + sizeof(struct jffs2_raw_inode);
@@ -430,15 +487,11 @@ jffs2_1pass_find_inode(struct b_lists * pL, const char *name, u32 pino)
 		if ((pino == jDir->pino) && (len == jDir->nsize) &&
 		    (jDir->ino) &&	/* 0 for unlink */
 		    (!strncmp(jDir->name, name, len))) {	/* a match */
-			if (jDir->version < version) continue;
+			if (jDir->version < version)
+				continue;
 
-		        if(jDir->version == 0) {
-			    	/* Is this legal? */
-				putstr(" ** WARNING ** ");
-				putnstr(jDir->name, jDir->nsize);
-				putstr(" is version 0 (in find, ignoring)\r\n");
-			} else if(jDir->version == version) {
-			    	/* Im pretty sure this isn't ... */
+			if (jDir->version == version && inode != 0) {
+			    	/* I'm pretty sure this isn't legal */
 				putstr(" ** ERROR ** ");
 				putnstr(jDir->name, jDir->nsize);
 				putLabeledWord(" has dup version =", version);
@@ -643,15 +696,11 @@ jffs2_1pass_resolve_inode(struct b_lists * pL, u32 ino)
 	for(b = pL->dir.listHead; b; b = b->next) {
 		jDir = (struct jffs2_raw_dirent *) (b->offset);
 		if (ino == jDir->ino) {
-		    	if(jDir->version < version) continue;
+		    	if (jDir->version < version)
+				continue;
 
-			if(jDir->version == 0) {
-			    	/* Is this legal? */
-				putstr(" ** WARNING ** ");
-				putnstr(jDir->name, jDir->nsize);
-				putstr(" is version 0 (in resolve, ignoring)\r\n");
-			} else if(jDir->version == version) {
-			    	/* Im pretty sure this isn't ... */
+			if (jDir->version == version && jDirFound) {
+			    	/* I'm pretty sure this isn't legal */
 				putstr(" ** ERROR ** ");
 				putnstr(jDir->name, jDir->nsize);
 				putLabeledWord(" has dup version (resolve) = ",
@@ -891,6 +940,11 @@ jffs2_1pass_build_lists(struct part_info * part)
 					printf("OOPS Cleanmarker has bad size "
 						"%d != %d\n", node->totlen,
 						sizeof(struct jffs2_unknown_node));
+			} else if (node->nodetype == JFFS2_NODETYPE_PADDING) {
+				if (node->totlen < sizeof(struct jffs2_unknown_node))
+					printf("OOPS Padding has bad size "
+						"%d < %d\n", node->totlen,
+						sizeof(struct jffs2_unknown_node));
 			} else {
 				printf("Unknown node type: %x len %d "
 					"offset 0x%x\n", node->nodetype,

include/configs/AdderII.h

@@ -48,10 +48,10 @@
 #define CONFIG_CLOCKS_IN_MHZ	1
 
 /* Monitor Functions */
-#define CONFIG_COMMANDS		( CFG_CMD_FLASH | \
+#define CONFIG_COMMANDS		( CFG_CMD_ENV	| \
+				  CFG_CMD_FLASH | \
 				  CFG_CMD_MEMORY| \
 				  CFG_CMD_NET   | \
-				  CFG_CMD_ENV	| \
 				  CFG_CMD_PING  | \
 				  CFG_CMD_SDRAM )
 

include/configs/MIP405.h

@@ -67,6 +67,7 @@
 			CFG_CMD_DATE	| \
 			CFG_CMD_ELF	| \
 			CFG_CMD_MII	| \
+			CFG_CMD_FAT | \
 			CFG_CMD_PING	| \
 			CFG_CMD_SAVES	| \
 			CFG_CMD_BSP	)
@@ -246,9 +247,10 @@
 /*
  * Init Memory Controller:
  */
-
-#define FLASH_BASE0_PRELIM	0xFFC00000	/* FLASH bank #0	*/
-#define FLASH_BASE1_PRELIM	0		/* FLASH bank #1	*/
+#define FLASH_MAX_SIZE		0x00800000		/* 8MByte max */
+#define FLASH_BASE_PRELIM	0xFF800000  /* open the flash CS */
+/* Size: 0=1MB, 1=2MB, 2=4MB, 3=8MB, 4=16MB, 5=32MB, 6=64MB, 7=128MB */
+#define FLASH_SIZE_PRELIM	 3  /* maximal flash FLASH size bank #0	*/
 
 #define CONFIG_BOARD_PRE_INIT
 
@@ -325,7 +327,7 @@
 #undef	CONFIG_IDE_LED	       /* no led for ide supported     */
 #define CONFIG_IDE_RESET       /* reset for ide supported...	*/
 #define CONFIG_IDE_RESET_ROUTINE /* with a special reset function */
-
+#define CONFIG_SUPPORT_VFAT
 /************************************************************
  * ATAPI support (experimental)
  ************************************************************/

include/configs/PIP405.h

@@ -50,11 +50,13 @@
 			CFG_CMD_PCI	| \
 			CFG_CMD_CACHE	| \
 			CFG_CMD_IRQ	| \
+			CFG_CMD_ECHO	| \
 			CFG_CMD_EEPROM	| \
 			CFG_CMD_I2C	| \
 			CFG_CMD_REGINFO | \
 			CFG_CMD_FDC	| \
 			CFG_CMD_SCSI	| \
+			CFG_CMD_FAT 	| \
 			CFG_CMD_DATE	| \
 			CFG_CMD_ELF	| \
 			CFG_CMD_USB	| \
@@ -141,7 +143,7 @@
 #define CONFIG_LOADS_ECHO	1	/* echo on for serial download	*/
 #define CFG_LOADS_BAUD_CHANGE	1	/* allow baudrate change	*/
 
-
+#define CONFIG_MISC_INIT_R
 /***********************************************************
  * Miscellaneous configurable options
  **********************************************************/
@@ -231,9 +233,12 @@
 /*
  * Init Memory Controller:
  */
+#define FLASH_MAX_SIZE		0x00800000		/* 8MByte max */
+#define FLASH_BASE_PRELIM	0xFF800000  /* open the flash CS */
+/* Size: 0=1MB, 1=2MB, 2=4MB, 3=8MB, 4=16MB, 5=32MB, 6=64MB, 7=128MB */
+#define FLASH_SIZE_PRELIM	 3  /* maximal flash FLASH size bank #0	*/
 
-#define FLASH_BASE0_PRELIM	0xFFC00000	/* FLASH bank #0	*/
-#define FLASH_BASE1_PRELIM	0		/* FLASH bank #1	*/
+#define CONFIG_BOARD_PRE_INIT
 
 /* Configuration Port location */
 #define CONFIG_PORT_ADDR	0xF4000000
@@ -299,6 +304,7 @@
 #undef	CONFIG_IDE_LED			/* no led for ide supported	*/
 #define CONFIG_IDE_RESET		/* reset for ide supported...	*/
 #define CONFIG_IDE_RESET_ROUTINE	/* with a special reset function */
+#define CONFIG_SUPPORT_VFAT
 
 /************************************************************
  * ATAPI support (experimental)

include/configs/SXNI855T.h

@@ -145,12 +145,22 @@
 
 #define CONFIG_COMMANDS		(CONFIG_CMD_DFL		| \
 				 CFG_CMD_EEPROM		| \
+				 CFG_CMD_JFFS2		| \
 				 CFG_CMD_NAND		| \
 				 CFG_CMD_DATE)
 
 /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
 #include <cmd_confdefs.h>
 
+#define CFG_JFFS_CUSTOM_PART
+#define CFG_JFFS2_SORT_FRAGMENTS
+/* JFFS2 location when using NOR flash */
+#define CFG_JFFS2_BASE	(CFG_FLASH_BASE + 0x80000)
+#define CFG_JFFS2_SIZE	(0x780000)
+/* JFFS2 location (in RAM) when using NAND flash */
+#define	CFG_JFFS2_RAMBASE 0x400000
+#define	CFG_JFFS2_RAMSIZE 0x200000	/* NAND boot partition is 2MiB	*/
+
 /* NAND flash support */
 #define CONFIG_MTD_NAND_ECC_JFFS2
 #define CFG_MAX_NAND_DEVICE	1	/* Max number of NAND devices	*/
@@ -405,13 +415,18 @@
 
 #define CONFIG_RESET_ON_PANIC		/* reset if system panic() */
 
-/* to put environment in EEROM */
-#define	CFG_ENV_IS_IN_EEPROM	1
-#define CFG_ENV_OFFSET		0	/* Start right at beginning of NVRAM */
-#define CFG_ENV_SIZE		1024	/* Use only a part of it*/
-
-#if 1
-#define CONFIG_BOOT_RETRY_TIME	60	/* boot if no command in 60 seconds */
+#define CFG_ENV_IS_IN_FLASH
+#ifdef CFG_ENV_IS_IN_FLASH
+  /* environment is in FLASH */
+  #define CFG_ENV_ADDR		0xF8040000	/* AM29LV641 or AM29LV800BT */
+  #define CFG_ENV_ADDR_REDUND	0xF8050000	/* AM29LV641 or AM29LV800BT */
+  #define CFG_ENV_SECT_SIZE	0x00010000
+  #define CFG_ENV_SIZE		0x00002000
+#else
+  /* environment is in EEPROM */
+  #define CFG_ENV_IS_IN_EEPROM		1
+  #define CFG_ENV_OFFSET		0	/* at beginning of EEPROM */
+  #define CFG_ENV_SIZE		     1024	/* Use only a part of it*/
 #endif
 
 #if 1

include/fat.h

@@ -204,5 +204,6 @@ int file_fat_detectfs(void);
 int file_fat_ls(const char *dir);
 long file_fat_read(const char *filename, void *buffer, unsigned long maxsize);
 const char *file_getfsname(int idx);
+int fat_register_device(block_dev_desc_t *dev_desc, int part_no);
 
 #endif /* _FAT_H_ */

include/jffs2/jffs2.h

@@ -82,6 +82,7 @@
 #define JFFS2_NODETYPE_DIRENT (JFFS2_FEATURE_INCOMPAT | JFFS2_NODE_ACCURATE | 1)
 #define JFFS2_NODETYPE_INODE (JFFS2_FEATURE_INCOMPAT | JFFS2_NODE_ACCURATE | 2)
 #define JFFS2_NODETYPE_CLEANMARKER (JFFS2_FEATURE_RWCOMPAT_DELETE | JFFS2_NODE_ACCURATE | 3)
+#define JFFS2_NODETYPE_PADDING (JFFS2_FEATURE_RWCOMPAT_DELETE | JFFS2_NODE_ACCURATE | 4)
 
 /* Maybe later... */
 /*#define JFFS2_NODETYPE_CHECKPOINT (JFFS2_FEATURE_RWCOMPAT_DELETE | JFFS2_NODE_ACCURATE | 3) */

include/part.h

@@ -50,6 +50,7 @@ typedef struct block_dev_desc {
 #define IF_TYPE_ATAPI		3
 #define IF_TYPE_USB		4
 #define IF_TYPE_DOC		5
+#define IF_TYPE_MMC		6
 
 /* Part types */
 #define	PART_TYPE_UNKNOWN	0x00

post/cache_8xx.S

@@ -27,8 +27,7 @@
     defined(CONFIG_MPC850) || \
     defined(CONFIG_MPC855) || \
     defined(CONFIG_MPC860) || \
-    defined(CONFIG_MPC862) || \
-    defined(CONFIG_MPC824X)
+    defined(CONFIG_MPC862)
 
 #include <post.h>
 #include <ppc_asm.tmpl>
@@ -491,6 +490,6 @@ cache_post_test6_data:
 	mtlr	r0
 	blr
 
-#endif /* CONFIG_MPC823 || MPC850 || MPC855 || MPC860 || MPC824X */
+#endif /* CONFIG_MPC823 || MPC850 || MPC855 || MPC860 */
 #endif /* CONFIG_POST & CFG_POST_CACHE */
 #endif /* CONFIG_POST */

post/ether.c

@@ -38,7 +38,7 @@
 #ifdef CONFIG_POST
 
 #include <post.h>
-
+#if CONFIG_POST & CFG_POST_ETHER
 #if defined(CONFIG_8xx)
 #include <commproc.h>
 #elif defined(CONFIG_MPC8260)
@@ -50,8 +50,6 @@
 #include <command.h>
 #include <net.h>
 
-#if CONFIG_POST & CFG_POST_ETHER
-
 #define MIN_PACKET_LENGTH	64
 #define MAX_PACKET_LENGTH	256
 #define TEST_NUM		1

post/uart.c

@@ -39,6 +39,7 @@
 #ifdef CONFIG_POST
 
 #include <post.h>
+#if CONFIG_POST & CFG_POST_UART
 #if defined(CONFIG_8xx)
 #include <commproc.h>
 #elif defined(CONFIG_MPC8260)
@@ -49,8 +50,6 @@
 #include <command.h>
 #include <net.h>
 
-#if CONFIG_POST & CFG_POST_UART
-
 #define CTLR_SMC 0
 #define CTLR_SCC 1