* Patch by Steven Scholz, 18 Oct 2003:

  Fix AT91RM9200 ethernet driver

* Patch by Nye Liu, 17 Oct 2003:
  Fix typo in include/mpc8xx.h

* Patch by Richard Woodruff, 16 Oct 03:
  Fixes for cpu/arm925/interrupt.c
  - Initialize timestamp & lastdec vars.
  - fix timestamp overflows.
  - fix lastdec overflow.
  - smarter normalization to allow udelay() below 1ms to work.

* Patch by Scott McNutt, 16 Oct
  add networking support for the Altera Nios Development Kit,
  Cyclone Edition (DK-1C20)

* Patch by Jon Diekema, 14 Oct 2003:
  add hint about doc/README.silent to README file

CHANGELOG

@@ -2,6 +2,26 @@
 Changes for U-Boot 1.0.0:
 ======================================================================
 
+* Patch by Steven Scholz, 18 Oct 2003:
+  Fix AT91RM9200 ethernet driver
+
+* Patch by Nye Liu, 17 Oct 2003:
+  Fix typo in include/mpc8xx.h
+
+* Patch by Richard Woodruff, 16 Oct 03:
+  Fixes for cpu/arm925/interrupt.c
+  - Initialize timestamp & lastdec vars.
+  - fix timestamp overflows.
+  - fix lastdec overflow.
+  - smarter normalization to allow udelay() below 1ms to work.
+
+* Patch by Scott McNutt, 16 Oct
+  add networking support for the Altera Nios Development Kit,
+  Cyclone Edition (DK-1C20)
+
+* Patch by Jon Diekema, 14 Oct 2003:
+  add hint about doc/README.silent to README file
+
 * Add CompactFlash support for NSCU
 
 * Fix PCI problems on PPChameleonEVB

README

@@ -487,6 +487,11 @@ The following options need to be configured:
 		default i/o. Serial console can be forced with
 		environment 'console=serial'.
 
+                When CONFIG_SILENT_CONSOLE is defined, all console
+                messages (by U-Boot and Linux!) can be silenced with
+                the "silent" environment variable. See
+                doc/README.silent for more information.
+
 - Console Baudrate:
 		CONFIG_BAUDRATE - in bps
 		Select one of the baudrates listed in

cpu/arm925t/interrupts.c

@@ -185,9 +185,14 @@ int interrupt_init (void)
 {
 	int32_t val;
 
+	/* Start the decrementer ticking down from 0xffffffff */
 	*((int32_t *) (CFG_TIMERBASE + LOAD_TIM)) = TIMER_LOAD_VAL;
 	val = MPUTIM_ST | MPUTIM_AR | MPUTIM_CLOCK_ENABLE | (CFG_PVT << MPUTIM_PTV_BIT);
 	*((int32_t *) (CFG_TIMERBASE + CNTL_TIMER)) = val;
+
+	/* init the timestamp and lastdec value */
+	reset_timer_masked();
+
 	return (0);
 }
 
@@ -210,7 +215,7 @@ void set_timer (ulong t)
 	timestamp = t;
 }
 
-/* very rough timer... */
+/* delay x useconds AND perserve advance timstamp value */
 void udelay (unsigned long usec)
 {
 #ifdef CONFIG_INNOVATOROMAP1510
@@ -220,16 +225,24 @@ void udelay (unsigned long usec)
 	for (i = time_remaining; i > 0; i--) {
 	}
 #else
+	ulong tmo, tmp;
+
+	if(usec >= 1000){               /* if "big" number, spread normalization to seconds */
+		tmo = usec / 1000;      /* start to normalize for usec to ticks per sec */
+		tmo *= CFG_HZ;          /* find number of "ticks" to wait to achieve target */
+		tmo /= 1000;            /* finish normalize. */
+	}else{                          /* else small number, don't kill it prior to HZ multiply */
+		tmo = usec * CFG_HZ;
+		tmo /= (1000*1000);
+	}
 
-	ulong tmo;
-
-	tmo = usec / 1000;
-	tmo *= CFG_HZ;
-	tmo /= 1000;
-
-	tmo += get_timer (0);
+	tmp = get_timer (0);		/* get current timestamp */
+	if( (tmo + tmp) < tmp ) 	/* if setting this fordward will roll time stamp */
+		reset_timer_masked ();	/* reset "advancing" timestamp to 0, set lastdec value */
+	else
+		tmo += tmp;		/* else, set advancing stamp wake up time */
 
-	while (get_timer_masked () < tmo)
+	while (get_timer_masked () < tmo)/* loop till event */
 		/*NOP*/;
 #endif
 }
@@ -237,19 +250,23 @@ void udelay (unsigned long usec)
 void reset_timer_masked (void)
 {
 	/* reset time */
-	lastdec = READ_TIMER;
-	timestamp = 0;
+	lastdec = READ_TIMER;  /* capure current decrementer value time */
+	timestamp = 0;         /* start "advancing" time stamp from 0 */
 }
 
 ulong get_timer_masked (void)
 {
-	ulong now = READ_TIMER;           /* current tick value */
+	ulong now = READ_TIMER;		/* current tick value */
 
-	if (lastdec >= now) {             /* did I roll (rem decrementer) */
+	if (lastdec >= now) {		/* normal mode (non roll) */
 		/* normal mode */
-		timestamp += lastdec - now;   /* record amount of time since last check */
-	} else {
-		/* we have an overflow ... */
+		timestamp += lastdec - now; /* move stamp fordward with absoulte diff ticks */
+	} else {			/* we have overflow of the count down timer */
+		/* nts = ts + ld + (TLV - now)
+		 * ts=old stamp, ld=time that passed before passing through -1
+		 * (TLV-now) amount of time after passing though -1
+		 * nts = new "advancing time stamp"...it could also roll and cause problems.
+		 */
 		timestamp += lastdec + TIMER_LOAD_VAL - now;
 	}
 	lastdec = now;
@@ -257,6 +274,7 @@ ulong get_timer_masked (void)
 	return timestamp;
 }
 
+/* waits specified delay value and resets timestamp */
 void udelay_masked (unsigned long usec)
 {
 #ifdef CONFIG_INNOVATOROMAP1510
@@ -265,15 +283,20 @@ void udelay_masked (unsigned long usec)
     for (i=time_remaining; i>0; i--) { }
 #else
 
-	ulong tmo;
+	ulong tmo, tmp;
 
-	tmo = usec / 1000;
-	tmo *= CFG_HZ;
-	tmo /= 1000;
+	if(usec >= 1000){               /* if "big" number, spread normalization to seconds */
+		tmo = usec / 1000;      /* start to normalize for usec to ticks per sec */
+		tmo *= CFG_HZ;          /* find number of "ticks" to wait to achieve target */
+		tmo /= 1000;            /* finish normalize. */
+	}else{                          /* else small number, don't kill it prior to HZ multiply */
+		tmo = usec * CFG_HZ;
+		tmo /= (1000*1000);
+	}
 
-	reset_timer_masked ();
+	reset_timer_masked ();	/* set "advancing" timestamp to 0, set lastdec vaule */
 
-	while (get_timer_masked () < tmo)
+	while (get_timer_masked () < tmo) /* wait for time stamp to overtake tick number.*/
 		/*NOP*/;
 #endif
 }
@@ -292,7 +315,7 @@ unsigned long long get_ticks(void)
  * On ARM it returns the number of timer ticks per second.
  */
 ulong get_tbclk (void)
-{	/* poor timer, may need to improve especiall for bootp. */
+{
 	ulong tbclk;
 
 	tbclk = CFG_HZ;

cpu/at91rm9200/at91rm9200_ether.c

@@ -334,12 +334,12 @@ static UCHAR at91rm9200_EmacReadPhy (AT91PS_EMAC p_mac,
  *	TRUE - if data read successfully
  */
 static UCHAR at91rm9200_EmacWritePhy (AT91PS_EMAC p_mac,
-									  unsigned char RegisterAddress,
-									  unsigned short *pOutput)
+				      unsigned char RegisterAddress,
+				      unsigned short *pOutput)
 {
 	p_mac->EMAC_MAN = (AT91C_EMAC_HIGH & ~AT91C_EMAC_LOW) |
 			AT91C_EMAC_CODE_802_3 | AT91C_EMAC_RW_W |
-			(RegisterAddress << 18);
+			(RegisterAddress << 18) | *pOutput;
 
 	udelay (10000);
 

doc/README.dk1c20

@@ -2,7 +2,7 @@
 			 Nios Development Kit
 			   Cyclone Editions
 
-		    Last Update: October 4, 2003
+		    Last Update: October 15, 2003
 ====================================================================
 
 This file contains information regarding U-Boot and the Altera
@@ -34,7 +34,10 @@ The hello_world example works fine.
 Programming U-Boot into FLASH with GERMS
 -----------------------------------------
 The current version of the DK-1C20 port occupies less than
-60 KByte. So everything will fit into a single Flash sector.
+60 KByte with network support disabled. So everything will fit
+into a single flash sector. With network support (e.g. bootp,
+tftpboot, ping, etc) the flash footprint is about 77K.
+
 To program U-Boot into the DK-1C20 flash using GERMS do the
 following:
 

doc/README.nios

@@ -1,7 +1,7 @@
 
 			   U-Boot for Nios-32
 
-		    Last Update: October 4, 2003
+		    Last Update: October 15, 2003
 ====================================================================
 
 This file contains information regarding U-Boot and the Altera
@@ -173,8 +173,6 @@ BTW, thats a 'zero' ... not the letter 'O'.
 There are plenty of areas where help is needed. Here's are some ideas
 for those interested in contributing:
 
--SMC 91C111 support. E.g. add in tftpboot, etc.
-
 -CompactFlash. Port & test CF/FAT.
 
 -ASMI support. Use ASMI for environment, etc.

drivers/smc91111.h

@@ -178,6 +178,31 @@ typedef unsigned long int 		dword;
 				})
 #endif
 
+#if defined(CONFIG_SMC_USE_32_BIT)
+
+#define	SMC_inl(r) 	(*((volatile dword *)(SMC_BASE_ADDRESS+(r))))
+
+#define SMC_insl(r,b,l) 	({	int __i ;  \
+					dword *__b2;  \
+			    		__b2 = (dword *) b;  \
+			    		for (__i = 0; __i < l; __i++) {  \
+					  *(__b2 + __i) = SMC_inl(r);  \
+					  SMC_inl(0);  \
+					};  \
+				})
+
+#define	SMC_outl(d,r)	(*((volatile dword *)(SMC_BASE_ADDRESS+(r))) = d)
+
+#define SMC_outsl(r,b,l)	({	int __i; \
+					dword *__b2; \
+					__b2 = (dword *) b; \
+					for (__i = 0; __i < l; __i++) { \
+					    SMC_outl( *(__b2 + __i), r); \
+					} \
+				})
+
+#endif /* CONFIG_SMC_USE_32_BIT */
+
 #endif
 
 /*---------------------------------------------------------------

include/configs/DK1C20.h

@@ -96,12 +96,10 @@
 /*------------------------------------------------------------------------
  * Ethernet -- needs work!
  *----------------------------------------------------------------------*/
-#if 0
 #define CONFIG_DRIVER_SMC91111			/* Using SMC91c111	*/
-#define CONFIG_SMC91111_BASE	0x00910000	/* Base address		*/
-#undef  CONFIG_SMC91111_EXT_PHY			/* No external PHY	*/
-#define CONFIG_SMC_USE_32_BIT	1		/* 32-bit i/f		*/
-#endif
+#define CONFIG_SMC91111_BASE	0x00910300	/* Base address		*/
+#undef  CONFIG_SMC91111_EXT_PHY			/* Internal PHY		*/
+#define CONFIG_SMC_USE_32_BIT			/* 32-bit data rd/wr	*/
 
 #define CONFIG_ETHADDR		08:00:3e:26:0a:5b
 #define CONFIG_NETMASK		255.255.255.0
@@ -131,7 +129,6 @@
 				 CFG_CMD_JFFS2	| \
 				 CFG_CMD_KGDB	| \
 				 CFG_CMD_NAND	| \
-				 CFG_CMD_NET	| \
 				 CFG_CMD_MMC	| \
 				 CFG_CMD_MII	| \
 				 CFG_CMD_PCI	| \

include/mpc8xx.h

@@ -138,7 +138,7 @@
 #define PLPRCR_MF_MSK	0xffff001e	/* Multiplication factor + PDF bits	*/
 #define PLPRCR_MFN_MSK	0xf8000000	/* Multiplication factor numerator bits */
 #define PLPRCR_MFN_SHIFT 0x0000001b	/* Multiplication factor numerator shift*/
-#define PLPRCR_MFD_MSK	0x03c00000	/* Multiplication factor denominator bits */
+#define PLPRCR_MFD_MSK	0x07c00000	/* Multiplication factor denominator bits */
 #define PLPRCR_MFD_SHIFT 0x00000017	/* Multiplication factor denominator shift*/
 #define PLPRCR_S_MSK	0x00300000	/* Multiplication factor integer bits	*/
 #define PLPRCR_S_SHIFT	0x00000014	/* Multiplication factor integer shift	*/

lib_nios/board.c

@@ -27,6 +27,7 @@
 #include <common.h>
 #include <devices.h>
 #include <watchdog.h>
+#include <net.h>
 
 
 /*
@@ -107,6 +108,8 @@ void board_init (void)
 
 	bd_t *bd;
 	init_fnc_t **init_fnc_ptr;
+	char *s, *e;
+	int i;
 
 	/* Pointer is writable since we allocated a register for it.
 	 * Nios treats CFG_GBL_DATA_OFFSET as an address.
@@ -129,6 +132,12 @@ void board_init (void)
 	bd->bi_sramstart= CFG_SRAM_BASE;
 	bd->bi_sramsize	= CFG_SRAM_SIZE;
 	bd->bi_baudrate	= CONFIG_BAUDRATE;
+	bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
+	s = getenv ("ethaddr");
+	for (i = 0; i < 6; ++i) {
+		bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0;
+		if (s) s = (*e) ? e + 1 : e;
+	}
 
 	for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
 		if ((*init_fnc_ptr) () != 0) {
@@ -164,3 +173,4 @@ void hang (void)
 	puts("### ERROR ### Please reset board ###\n");
 	for (;;);
 }
+