Add ADI Blackfin support

- add support for Analog Devices Blackfin BF533 CPU
- add support for the ADI BF533 Stamp uClinux board
- add support for the ADI BF533 EZKit board
Patches by Richard Klingler, June 11th 2005:

CHANGELOG

@@ -2,6 +2,12 @@
 Changes since U-Boot 1.1.4:
 ======================================================================
 
+* Add ADI Blackfin support
+  - add support for Analog Devices Blackfin BF533 CPU
+  - add support for the ADI BF533 Stamp uClinux board
+  - add support for the ADI BF533 EZKit board
+  Patches by Richard Klingler, 11 Jun 2005
+
 * Add loads of ntohl() in image header handling
   Patch by Steven Scholz, 10 Jun 2005
 

Makefile

@@ -85,6 +85,9 @@ endif
 ifeq ($(ARCH),microblaze)
 CROSS_COMPILE = mb-
 endif
+ifeq ($(ARCH),blackfin)
+CROSS_COMPILE = bfin-elf-
+endif
 endif
 endif
 
@@ -111,6 +114,10 @@ endif
 ifeq ($(CPU),mpc85xx)
 OBJS += cpu/$(CPU)/resetvec.o
 endif
+ifeq ($(CPU),bf533)
+OBJS += cpu/$(CPU)/start1.o	cpu/$(CPU)/interrupt.o	cpu/$(CPU)/cache.o
+OBJS += cpu/$(CPU)/cplbhdlr.o	cpu/$(CPU)/cplbmgr.o	cpu/$(CPU)/flush.o
+endif
 
 LIBS  = lib_generic/libgeneric.a
 LIBS += board/$(BOARDDIR)/lib$(BOARD).a
@@ -1859,6 +1866,19 @@ suzaku_config:	unconfig
 	@echo "#define CONFIG_SUZAKU 1" >> include/config.h
 	@./mkconfig -a $(@:_config=) microblaze microblaze suzaku AtmarkTechno
 
+#########################################################################
+## Blackfin
+#########################################################################
+ezkit533_config	:	unconfig
+	@./mkconfig $(@:_config=) blackfin bf533 ezkit533
+
+stamp_config	:	unconfig
+	@./mkconfig $(@:_config=) blackfin bf533 stamp
+
+dspstamp_config	:	unconfig
+	@./mkconfig $(@:_config=) blackfin bf533 dsp_stamp
+
+#########################################################################
 #########################################################################
 #########################################################################
 
@@ -1870,6 +1890,7 @@ clean:
 	rm -f examples/hello_world examples/timer \
 	      examples/eepro100_eeprom examples/sched \
 	      examples/mem_to_mem_idma2intr examples/82559_eeprom \
+	      examples/smc91111_eeprom \
 	      examples/test_burst
 	rm -f tools/img2srec tools/mkimage tools/envcrc tools/gen_eth_addr
 	rm -f tools/mpc86x_clk tools/ncb

common/cmd_bootm.c

@@ -252,6 +252,8 @@ int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	if (hdr->ih_arch != IH_CPU_MICROBLAZE)
 #elif defined(__nios2__)
 	if (hdr->ih_arch != IH_CPU_NIOS2)
+#elif defined(__blackfin__)
+	if (hdr->ih_arch != IH_CPU_BLACKFIN)
 #else
 # error Unknown CPU type
 #endif

config.mk

@@ -53,6 +53,10 @@ PLATFORM_CPPFLAGS+= -D__ARM__
 endif
 endif
 
+ifeq ($(ARCH),blackfin)
+PLATFORM_CPPFLAGS+= -D__BLACKFIN__ -mno-underscore
+endif
+
 ifdef	ARCH
 sinclude $(TOPDIR)/$(ARCH)_config.mk	# include architecture dependend rules
 endif

drivers/cfi_flash.c

@@ -878,18 +878,27 @@ static void flash_write_cmd (flash_info_t * info, flash_sect_t sect, uint offset
 		debug ("fwc addr %p cmd %x %x 8bit x %d bit\n", addr.cp, cmd,
 		       cword.c, info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
 		*addr.cp = cword.c;
+#ifdef CONFIG_BLACKFIN
+		asm("ssync;");
+#endif
 		break;
 	case FLASH_CFI_16BIT:
 		debug ("fwc addr %p cmd %x %4.4x 16bit x %d bit\n", addr.wp,
 		       cmd, cword.w,
 		       info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
 		*addr.wp = cword.w;
+#ifdef CONFIG_BLACKFIN
+		asm("ssync;");
+#endif
 		break;
 	case FLASH_CFI_32BIT:
 		debug ("fwc addr %p cmd %x %8.8lx 32bit x %d bit\n", addr.lp,
 		       cmd, cword.l,
 		       info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
 		*addr.lp = cword.l;
+#ifdef CONFIG_BLACKFIN
+		asm("ssync;");
+#endif
 		break;
 	case FLASH_CFI_64BIT:
 #ifdef DEBUG
@@ -904,6 +913,9 @@ static void flash_write_cmd (flash_info_t * info, flash_sect_t sect, uint offset
 		}
 #endif
 		*addr.llp = cword.ll;
+#ifdef CONFIG_BLACKFIN
+		asm("ssync;");
+#endif
 		break;
 	}
 }

drivers/smc91111.c

@@ -160,6 +160,9 @@ extern void eth_halt(void);
 extern int eth_rx(void);
 extern int eth_send(volatile void *packet, int length);
 
+#ifdef SHARED_RESOURCES
+	extern void swap_to(int device_id);
+#endif
 
 /*
  . This is called by  register_netdev().  It is responsible for
@@ -533,6 +536,9 @@ static void smc_shutdown()
 	SMC_SELECT_BANK( 0 );
 	SMC_outb( RCR_CLEAR, RCR_REG );
 	SMC_outb( TCR_CLEAR, TCR_REG );
+#ifdef SHARED_RESOURCES
+	swap_to(FLASH);
+#endif
 }
 
 
@@ -1511,6 +1517,9 @@ static void print_packet( byte * buf, int length )
 #endif
 
 int eth_init(bd_t *bd) {
+#ifdef SHARED_RESOURCES
+	swap_to(ETHERNET);
+#endif
 	return (smc_open(bd));
 }
 

drivers/smc91111.h

@@ -185,6 +185,8 @@ typedef unsigned long int 		dword;
 
 #ifdef CONFIG_ADNPESC1
 #define	SMC_inw(r) 	(*((volatile word *)(SMC_BASE_ADDRESS+((r)<<1))))
+#elif CONFIG_BLACKFIN
+#define	SMC_inw(r) 	({ word __v = (*((volatile word *)(SMC_BASE_ADDRESS+(r)))); asm("ssync;"); __v;})
 #else
 #define	SMC_inw(r) 	(*((volatile word *)(SMC_BASE_ADDRESS+(r))))
 #endif
@@ -192,6 +194,8 @@ typedef unsigned long int 		dword;
 
 #ifdef CONFIG_ADNPESC1
 #define	SMC_outw(d,r)	(*((volatile word *)(SMC_BASE_ADDRESS+((r)<<1))) = d)
+#elif CONFIG_BLACKFIN
+#define	SMC_outw(d,r)	{(*((volatile word *)(SMC_BASE_ADDRESS+(r))) = d);asm("ssync;");}
 #else
 #define	SMC_outw(d,r)	(*((volatile word *)(SMC_BASE_ADDRESS+(r))) = d)
 #endif

examples/Makefile

@@ -53,6 +53,10 @@ ifeq ($(ARCH),microblaze)
 LOAD_ADDR = 0x80F00000
 endif
 
+ifeq ($(ARCH),blackfin)
+LOAD_ADDR = 0x1000
+endif
+
 include $(TOPDIR)/config.mk
 
 SREC	= hello_world.srec
@@ -73,6 +77,11 @@ SREC   += sched.srec
 BIN    += sched.bin sched
 endif
 
+ifeq ($(ARCH),blackfin)
+SREC	+= smc91111_eeprom.srec
+BIN 	+= smc91111_eeprom.bin smc91111_eeprom
+endif
+
 # The following example is pretty 8xx specific...
 ifeq ($(CPU),mpc8xx)
 SREC   += timer.srec

examples/smc91111_eeprom.c

@@ -214,13 +214,11 @@ int smc91111_eeprom (int argc, char *argv[])
 
 			switch (what) {
 			case 1:
-				printf ("Writing EEPROM register %02x with %04x\n",
-					reg, value);
+				printf ("Writing EEPROM register %02x with %04x\n", reg, value);
 				write_eeprom_reg (value, reg);
 				break;
 			case 2:
-				printf ("Writing MAC register bank %i,
-					reg %02x with %04x\n", reg >> 4, reg & 0xE, value);
+				printf ("Writing MAC register bank %i, reg %02x with %04x\n", reg >> 4, reg & 0xE, value);
 				SMC_SELECT_BANK (reg >> 4);
 				SMC_outw (value, reg & 0xE);
 				break;

examples/stubs.c

@@ -125,6 +125,19 @@ gd_t *global_data;
 "	lwi	r5, r5, %1\n"			\
 "	bra	r5\n"				\
 	: : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "r5");
+#elif defined(CONFIG_BLACKFIN)
+/*
+ * P5 holds the pointer to the global_data, P0 is a call-clobbered
+ * register
+ */
+#define EXPORT_FUNC(x)			\
+        asm volatile (			\
+"       .globl " #x "\n"		\
+#x ":\n"				\
+"	P0 = [P5 + %0]\n"		\
+"	P0 = [P0 + %1]\n"		\
+"	JUMP (P0)\n"			\
+	: : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "P0");
 #else
 #error stubs definition missing for this architecture
 #endif

include/flash.h

@@ -242,6 +242,7 @@ extern void flash_read_factory_serial(flash_info_t * info, void * buffer, int of
 #define STM_ID_29W320DT 0x22CA22CA	/* M29W320DT ID (32 M, top boot sector) */
 #define STM_ID_29W320DB 0x22CB22CB	/* M29W320DB ID (32 M, bottom boot sect)	*/
 #define STM_ID_29W040B	0x00E300E3	/* M29W040B ID (4M = 512K x 8)	*/
+#define FLASH_PSD4256GV 0x00E9		/* PSD4256 Flash and CPLD combination	*/
 
 #define INTEL_ID_28F016S    0x66a066a0	/* 28F016S[VS] ID (16M = 512k x 16)	*/
 #define INTEL_ID_28F800B3T  0x88928892	/*  8M = 512K x 16 top boot sector	*/

include/image.h

@@ -75,6 +75,7 @@
 #define IH_CPU_NIOS		13	/* Nios-32	*/
 #define IH_CPU_MICROBLAZE	14	/* MicroBlaze   */
 #define IH_CPU_NIOS2		15	/* Nios-II	*/
+#define IH_CPU_BLACKFIN		16	/* Blackfin	*/
 
 /*
  * Image Types

include/linux/stat.h

@@ -67,7 +67,7 @@ struct stat {
 
 #endif	/* __PPC__ */
 
-#if defined (__ARM__) || defined (__I386__) || defined (__M68K__)
+#if defined (__ARM__) || defined (__I386__) || defined (__M68K__) || defined (__blackfin__)
 
 struct stat {
 	unsigned short st_dev;

rtc/Makefile

@@ -28,8 +28,8 @@ include $(TOPDIR)/config.mk
 LIB	= librtc.a
 
 OBJS	= date.o   \
-	  ds12887.o ds1302.o ds1306.o ds1307.o ds1337.o \
-	  ds1556.o ds164x.o ds174x.o \
+	  bf533_rtc.o ds12887.o ds1302.o ds1306.o ds1307.o \
+	  ds1337.o ds1556.o ds164x.o ds174x.o \
 	  m41t11.o max6900.o m48t35ax.o mc146818.o mk48t59.o \
 	  mpc5xxx.o mpc8xx.o pcf8563.o s3c24x0_rtc.o rs5c372.o
 

tools/mkimage.c

@@ -93,6 +93,7 @@ table_entry_t arch_name[] = {
     {	IH_CPU_SH,		"sh",		"SuperH",	},
     {	IH_CPU_SPARC,		"sparc",	"SPARC",	},
     {	IH_CPU_SPARC64,		"sparc64",	"SPARC 64 Bit",	},
+    {	IH_CPU_BLACKFIN,	"blackfin",	"Blackfin",	},
     {	-1,			"",		"",		},
 };