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authorAubrey.Li <aubrey.adi@gmail.com>2007-03-09 13:38:44 +0800
committerAubrey.Li <aubrey.adi@gmail.com>2007-03-09 13:38:44 +0800
commit3f0606ad0b5639f7f22848fe5b4574e754d0470f (patch)
tree3cb4fd316134b6a176607ad61739720aeb971a5a /board/bf533-stamp
parenteb92f613556800f7483666db09d9a237ad911d4a (diff)
downloadu-boot-3f0606ad0b5639f7f22848fe5b4574e754d0470f.tar.gz
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[Blackfin]PATCH-1/2]: Remove obsolete blackfin port and add bf533 platform support
Diffstat (limited to 'board/bf533-stamp')
-rw-r--r--board/bf533-stamp/Makefile48
-rw-r--r--board/bf533-stamp/bf533-stamp.c275
-rw-r--r--board/bf533-stamp/bf533-stamp.h56
-rw-r--r--board/bf533-stamp/config.mk25
-rw-r--r--board/bf533-stamp/spi.c472
-rw-r--r--board/bf533-stamp/u-boot.lds.S153
6 files changed, 1029 insertions, 0 deletions
diff --git a/board/bf533-stamp/Makefile b/board/bf533-stamp/Makefile
new file mode 100644
index 0000000000..1efb851e70
--- /dev/null
+++ b/board/bf533-stamp/Makefile
@@ -0,0 +1,48 @@
+#
+# U-boot - Makefile
+#
+# Copyright (c) 2005-2007 Analog Device Inc.
+#
+# (C) Copyright 2000-2004
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# 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 $(TOPDIR)/config.mk
+
+LIB = lib$(BOARD).a
+
+OBJS = $(BOARD).o spi.o
+
+$(LIB): .depend $(OBJS) u-boot.lds
+ $(AR) cr $@ $(OBJS)
+
+u-boot.lds: u-boot.lds.S
+ $(CPP) $(CPPFLAGS) -P -Ubfin $^ > $@.tmp
+ mv -f $@.tmp $@
+
+#########################################################################
+
+.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
+ $(CC) -M $(CFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+
+sinclude .depend
+
+#########################################################################
diff --git a/board/bf533-stamp/bf533-stamp.c b/board/bf533-stamp/bf533-stamp.c
new file mode 100644
index 0000000000..3e074e3a1b
--- /dev/null
+++ b/board/bf533-stamp/bf533-stamp.c
@@ -0,0 +1,275 @@
+/*
+ * U-boot - stamp.c STAMP board specific routines
+ *
+ * Copyright (c) 2005 blackfin.uclinux.org
+ *
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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>
+#include <asm/mem_init.h>
+#include "bf533-stamp.h"
+
+#define STATUS_LED_OFF 0
+#define STATUS_LED_ON 1
+
+#ifdef CONFIG_SHOW_BOOT_PROGRESS
+# define SHOW_BOOT_PROGRESS(arg) show_boot_progress(arg)
+#else
+# define SHOW_BOOT_PROGRESS(arg)
+#endif
+
+int checkboard(void)
+{
+#if (BFIN_CPU == ADSP_BF531)
+ printf("CPU: ADSP BF531 Rev.: 0.%d\n", *pCHIPID >> 28);
+#elif (BFIN_CPU == ADSP_BF532)
+ printf("CPU: ADSP BF532 Rev.: 0.%d\n", *pCHIPID >> 28);
+#else
+ printf("CPU: ADSP BF533 Rev.: 0.%d\n", *pCHIPID >> 28);
+#endif
+ printf("Board: ADI BF533 Stamp board\n");
+ printf(" Support: http://blackfin.uclinux.org/\n");
+ return 0;
+}
+
+long int initdram(int board_type)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+#ifdef DEBUG
+ printf("SDRAM attributes:\n");
+ printf
+ (" tRCD:%d Cycles; tRP:%d Cycles; tRAS:%d Cycles; tWR:%d Cycles; "
+ "CAS Latency:%d cycles\n", (SDRAM_tRCD >> 15), (SDRAM_tRP >> 11),
+ (SDRAM_tRAS >> 6), (SDRAM_tWR >> 19), (SDRAM_CL >> 2));
+ printf("SDRAM Begin: 0x%x\n", CFG_SDRAM_BASE);
+ printf("Bank size = %d MB\n", 128);
+#endif
+ gd->bd->bi_memstart = CFG_SDRAM_BASE;
+ gd->bd->bi_memsize = CFG_MAX_RAM_SIZE;
+ return (gd->bd->bi_memsize);
+}
+
+void swap_to(int device_id)
+{
+
+ if (device_id == ETHERNET) {
+ *pFIO_DIR = PF0;
+ __builtin_bfin_ssync();
+ *pFIO_FLAG_S = PF0;
+ __builtin_bfin_ssync();
+ } else if (device_id == FLASH) {
+ *pFIO_DIR = (PF4 | PF3 | PF2 | PF1 | PF0);
+ *pFIO_FLAG_S = (PF4 | PF3 | PF2);
+ *pFIO_MASKA_D = (PF8 | PF6 | PF5);
+ *pFIO_MASKB_D = (PF7);
+ *pFIO_POLAR = (PF8 | PF6 | PF5);
+ *pFIO_EDGE = (PF8 | PF7 | PF6 | PF5);
+ *pFIO_INEN = (PF8 | PF7 | PF6 | PF5);
+ *pFIO_FLAG_D = (PF4 | PF3 | PF2);
+ __builtin_bfin_ssync();
+ } else {
+ printf("Unknown bank to switch\n");
+ }
+
+ return;
+}
+
+#if defined(CONFIG_MISC_INIT_R)
+/* miscellaneous platform dependent initialisations */
+int misc_init_r(void)
+{
+ int i;
+ int cf_stat = 0;
+
+ /* Check whether CF card is inserted */
+ *pFIO_EDGE = FIO_EDGE_CF_BITS;
+ *pFIO_POLAR = FIO_POLAR_CF_BITS;
+ for (i = 0; i < 0x300; i++)
+ asm("nop;");
+
+ if ((*pFIO_FLAG_S) & CF_STAT_BITS) {
+ cf_stat = 0;
+ } else {
+ cf_stat = 1;
+ }
+
+ *pFIO_EDGE = FIO_EDGE_BITS;
+ *pFIO_POLAR = FIO_POLAR_BITS;
+
+ if (cf_stat) {
+ printf("Booting from COMPACT flash\n");
+
+ /* Set cycle time for CF */
+ *(volatile unsigned long *)ambctl1 = CF_AMBCTL1VAL;
+
+ for (i = 0; i < 0x1000; i++)
+ asm("nop;");
+ for (i = 0; i < 0x1000; i++)
+ asm("nop;");
+ for (i = 0; i < 0x1000; i++)
+ asm("nop;");
+
+ serial_setbrg();
+ ide_init();
+
+ setenv("bootargs", "");
+ setenv("bootcmd",
+ "fatload ide 0:1 0x1000000 uImage-stamp;bootm 0x1000000;bootm 0x20100000");
+ } else {
+ printf("Booting from FLASH\n");
+ }
+
+ return 0;
+}
+#endif
+
+#ifdef CONFIG_STAMP_CF
+
+void cf_outb(unsigned char val, volatile unsigned char *addr)
+{
+ /*
+ * Set PF1 PF0 respectively to 0 1 to divert address
+ * to the expansion memory banks
+ */
+ *pFIO_FLAG_S = CF_PF0;
+ *pFIO_FLAG_C = CF_PF1;
+ __builtin_bfin_ssync();
+
+ *(addr) = val;
+ __builtin_bfin_ssync();
+
+ /* Setback PF1 PF0 to 0 0 to address external
+ * memory banks */
+ *(volatile unsigned short *)pFIO_FLAG_C = CF_PF1_PF0;
+ __builtin_bfin_ssync();
+}
+
+unsigned char cf_inb(volatile unsigned char *addr)
+{
+ volatile unsigned char c;
+
+ *pFIO_FLAG_S = CF_PF0;
+ *pFIO_FLAG_C = CF_PF1;
+ __builtin_bfin_ssync();
+
+ c = *(addr);
+ __builtin_bfin_ssync();
+
+ *pFIO_FLAG_C = CF_PF1_PF0;
+ __builtin_bfin_ssync();
+
+ return c;
+}
+
+void cf_insw(unsigned short *sect_buf, unsigned short *addr, int words)
+{
+ int i;
+
+ *pFIO_FLAG_S = CF_PF0;
+ *pFIO_FLAG_C = CF_PF1;
+ __builtin_bfin_ssync();
+
+ for (i = 0; i < words; i++) {
+ *(sect_buf + i) = *(addr);
+ __builtin_bfin_ssync();
+ }
+
+ *pFIO_FLAG_C = CF_PF1_PF0;
+ __builtin_bfin_ssync();
+}
+
+void cf_outsw(unsigned short *addr, unsigned short *sect_buf, int words)
+{
+ int i;
+
+ *pFIO_FLAG_S = CF_PF0;
+ *pFIO_FLAG_C = CF_PF1;
+ __builtin_bfin_ssync();
+
+ for (i = 0; i < words; i++) {
+ *(addr) = *(sect_buf + i);
+ __builtin_bfin_ssync();
+ }
+
+ *pFIO_FLAG_C = CF_PF1_PF0;
+ __builtin_bfin_ssync();
+}
+#endif
+
+void stamp_led_set(int LED1, int LED2, int LED3)
+{
+ *pFIO_INEN &= ~(PF2 | PF3 | PF4);
+ *pFIO_DIR |= (PF2 | PF3 | PF4);
+
+ if (LED1 == STATUS_LED_OFF)
+ *pFIO_FLAG_S = PF2;
+ else
+ *pFIO_FLAG_C = PF2;
+ if (LED2 == STATUS_LED_OFF)
+ *pFIO_FLAG_S = PF3;
+ else
+ *pFIO_FLAG_C = PF3;
+ if (LED3 == STATUS_LED_OFF)
+ *pFIO_FLAG_S = PF4;
+ else
+ *pFIO_FLAG_C = PF4;
+ __builtin_bfin_ssync();
+}
+
+void show_boot_progress(int status)
+{
+ switch (status) {
+ case 1:
+ stamp_led_set(STATUS_LED_OFF, STATUS_LED_OFF, STATUS_LED_ON);
+ break;
+ case 2:
+ stamp_led_set(STATUS_LED_OFF, STATUS_LED_ON, STATUS_LED_OFF);
+ break;
+ case 3:
+ stamp_led_set(STATUS_LED_OFF, STATUS_LED_ON, STATUS_LED_ON);
+ break;
+ case 4:
+ stamp_led_set(STATUS_LED_ON, STATUS_LED_OFF, STATUS_LED_OFF);
+ break;
+ case 5:
+ case 6:
+ stamp_led_set(STATUS_LED_ON, STATUS_LED_OFF, STATUS_LED_ON);
+ break;
+ case 7:
+ case 8:
+ stamp_led_set(STATUS_LED_ON, STATUS_LED_ON, STATUS_LED_OFF);
+ break;
+ case 9:
+ case 10:
+ case 11:
+ case 12:
+ case 13:
+ case 14:
+ case 15:
+ stamp_led_set(STATUS_LED_OFF, STATUS_LED_OFF, STATUS_LED_OFF);
+ break;
+ default:
+ stamp_led_set(STATUS_LED_ON, STATUS_LED_ON, STATUS_LED_ON);
+ break;
+ }
+}
diff --git a/board/bf533-stamp/bf533-stamp.h b/board/bf533-stamp/bf533-stamp.h
new file mode 100644
index 0000000000..b2b51aa2ba
--- /dev/null
+++ b/board/bf533-stamp/bf533-stamp.h
@@ -0,0 +1,56 @@
+/*
+ * U-boot - stamp.h
+ *
+ * Copyright (c) 2005 blackfin.uclinux.org
+ *
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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
+ */
+
+#ifndef __STAMP_H__
+#define __STAMP_H__
+
+extern void init_Flags(void);
+
+extern volatile unsigned long *ambctl0;
+extern volatile unsigned long *ambctl1;
+extern volatile unsigned long *amgctl;
+
+extern unsigned long pll_div_fact;
+extern void serial_setbrg(void);
+
+/* Definitions used in Compact Flash Boot support */
+#define FIO_EDGE_CF_BITS 0x0000
+#define FIO_POLAR_CF_BITS 0x0000
+#define FIO_EDGE_BITS 0x1E0
+#define FIO_POLAR_BITS 0x160
+
+/* Compact flash status bits in status register */
+#define CF_STAT_BITS 0x00000060
+
+/* CF Flags used to switch between expansion and external
+ * memory banks
+ */
+#define CF_PF0 0x0001
+#define CF_PF1 0x0002
+#define CF_PF1_PF0 0x0003
+
+#endif
diff --git a/board/bf533-stamp/config.mk b/board/bf533-stamp/config.mk
new file mode 100644
index 0000000000..113438b4ff
--- /dev/null
+++ b/board/bf533-stamp/config.mk
@@ -0,0 +1,25 @@
+#
+# (C) Copyright 2001
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# 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
+#
+# TEXT_BASE should be defined as the MAX_SDRAM Address - 256k bytes
+# 256k is defined as CFG_MONITOR_LEN in ./include/configs/<board>.h
+TEXT_BASE = 0x07FC0000
diff --git a/board/bf533-stamp/spi.c b/board/bf533-stamp/spi.c
new file mode 100644
index 0000000000..1b585aac95
--- /dev/null
+++ b/board/bf533-stamp/spi.c
@@ -0,0 +1,472 @@
+/****************************************************************************
+ * SPI flash driver for M25P64
+ ****************************************************************************/
+#include <common.h>
+#include <linux/ctype.h>
+
+#if defined(CONFIG_SPI)
+
+ /*Application definitions */
+
+#define NUM_SECTORS 128 /* number of sectors */
+#define SECTOR_SIZE 0x10000
+#define NOP_NUM 1000
+
+#define COMMON_SPI_SETTINGS (SPE|MSTR|CPHA|CPOL) /*Settings to the SPI_CTL */
+#define TIMOD01 (0x01) /*stes the SPI to work with core instructions */
+
+ /*Flash commands */
+#define SPI_WREN (0x06) /*Set Write Enable Latch */
+#define SPI_WRDI (0x04) /*Reset Write Enable Latch */
+#define SPI_RDSR (0x05) /*Read Status Register */
+#define SPI_WRSR (0x01) /*Write Status Register */
+#define SPI_READ (0x03) /*Read data from memory */
+#define SPI_PP (0x02) /*Program Data into memory */
+#define SPI_SE (0xD8) /*Erase one sector in memory */
+#define SPI_BE (0xC7) /*Erase all memory */
+#define WIP (0x1) /*Check the write in progress bit of the SPI status register */
+#define WEL (0x2) /*Check the write enable bit of the SPI status register */
+
+#define TIMEOUT 350000000
+
+typedef enum {
+ NO_ERR,
+ POLL_TIMEOUT,
+ INVALID_SECTOR,
+ INVALID_BLOCK,
+} ERROR_CODE;
+
+void spi_init_f(void);
+void spi_init_r(void);
+ssize_t spi_read(uchar *, int, uchar *, int);
+ssize_t spi_write(uchar *, int, uchar *, int);
+
+char ReadStatusRegister(void);
+void Wait_For_SPIF(void);
+void SetupSPI(const int spi_setting);
+void SPI_OFF(void);
+void SendSingleCommand(const int iCommand);
+
+ERROR_CODE GetSectorNumber(unsigned long ulOffset, int *pnSector);
+ERROR_CODE EraseBlock(int nBlock);
+ERROR_CODE ReadData(unsigned long ulStart, long lCount, int *pnData);
+ERROR_CODE WriteData(unsigned long ulStart, long lCount, int *pnData);
+ERROR_CODE Wait_For_Status(char Statusbit);
+ERROR_CODE Wait_For_WEL(void);
+
+/* -------------------
+ * Variables
+ * ------------------- */
+
+/* **************************************************************************
+ *
+ * Function: spi_init_f
+ *
+ * Description: Init SPI-Controller (ROM part)
+ *
+ * return: ---
+ *
+ * *********************************************************************** */
+void spi_init_f(void)
+{
+}
+
+/* **************************************************************************
+ *
+ * Function: spi_init_r
+ *
+ * Description: Init SPI-Controller (RAM part) -
+ * The malloc engine is ready and we can move our buffers to
+ * normal RAM
+ *
+ * return: ---
+ *
+ * *********************************************************************** */
+void spi_init_r(void)
+{
+ return;
+}
+
+/****************************************************************************
+ * Function: spi_write
+ **************************************************************************** */
+ssize_t spi_write(uchar * addr, int alen, uchar * buffer, int len)
+{
+ unsigned long offset;
+ int start_block, end_block;
+ int start_byte, end_byte;
+ ERROR_CODE result = NO_ERR;
+ uchar temp[SECTOR_SIZE];
+ int i, num;
+
+ offset = addr[0] << 16 | addr[1] << 8 | addr[2];
+ /* Get the start block number */
+ result = GetSectorNumber(offset, &start_block);
+ if (result == INVALID_SECTOR) {
+ printf("Invalid sector! ");
+ return 0;
+ }
+ /* Get the end block number */
+ result = GetSectorNumber(offset + len - 1, &end_block);
+ if (result == INVALID_SECTOR) {
+ printf("Invalid sector! ");
+ return 0;
+ }
+
+ for (num = start_block; num <= end_block; num++) {
+ ReadData(num * SECTOR_SIZE, SECTOR_SIZE, (int *)temp);
+ start_byte = num * SECTOR_SIZE;
+ end_byte = (num + 1) * SECTOR_SIZE - 1;
+ if (start_byte < offset)
+ start_byte = offset;
+ if (end_byte > (offset + len))
+ end_byte = (offset + len - 1);
+ for (i = start_byte; i <= end_byte; i++)
+ temp[i - num * SECTOR_SIZE] = buffer[i - offset];
+ EraseBlock(num);
+ result = WriteData(num * SECTOR_SIZE, SECTOR_SIZE, (int *)temp);
+ if (result != NO_ERR)
+ return 0;
+ printf(".");
+ }
+ return len;
+}
+
+/****************************************************************************
+ * Function: spi_read
+ **************************************************************************** */
+ssize_t spi_read(uchar * addr, int alen, uchar * buffer, int len)
+{
+ unsigned long offset;
+ offset = addr[0] << 16 | addr[1] << 8 | addr[2];
+ ReadData(offset, len, (int *)buffer);
+ return len;
+}
+
+void SendSingleCommand(const int iCommand)
+{
+ unsigned short dummy;
+
+ /*turns on the SPI in single write mode */
+ SetupSPI((COMMON_SPI_SETTINGS | TIMOD01));
+
+ /*sends the actual command to the SPI TX register */
+ *pSPI_TDBR = iCommand;
+ __builtin_bfin_ssync();
+
+ /*The SPI status register will be polled to check the SPIF bit */
+ Wait_For_SPIF();
+
+ dummy = *pSPI_RDBR;
+
+ /*The SPI will be turned off */
+ SPI_OFF();
+
+}
+
+void SetupSPI(const int spi_setting)
+{
+
+ if (icache_status() || dcache_status())
+ udelay(CONFIG_CCLK_HZ / 50000000);
+ /*sets up the PF2 to be the slave select of the SPI */
+ *pSPI_FLG = 0xFB04;
+ *pSPI_BAUD = CONFIG_SPI_BAUD;
+ *pSPI_CTL = spi_setting;
+ __builtin_bfin_ssync();
+}
+
+void SPI_OFF(void)
+{
+
+ *pSPI_CTL = 0x0400; /* disable SPI */
+ *pSPI_FLG = 0;
+ *pSPI_BAUD = 0;
+ __builtin_bfin_ssync();
+ udelay(CONFIG_CCLK_HZ / 50000000);
+
+}
+
+void Wait_For_SPIF(void)
+{
+ unsigned short dummyread;
+ while ((*pSPI_STAT & TXS)) ;
+ while (!(*pSPI_STAT & SPIF)) ;
+ while (!(*pSPI_STAT & RXS)) ;
+ dummyread = *pSPI_RDBR; /* Read dummy to empty the receive register */
+
+}
+
+ERROR_CODE Wait_For_WEL(void)
+{
+ int i;
+ char status_register = 0;
+ ERROR_CODE ErrorCode = NO_ERR; /* tells us if there was an error erasing flash */
+
+ for (i = 0; i < TIMEOUT; i++) {
+ status_register = ReadStatusRegister();
+ if ((status_register & WEL)) {
+ ErrorCode = NO_ERR; /* tells us if there was an error erasing flash */
+ break;
+ }
+ ErrorCode = POLL_TIMEOUT; /* Time out error */
+ };
+
+ return ErrorCode;
+}
+
+ERROR_CODE Wait_For_Status(char Statusbit)
+{
+ int i;
+ char status_register = 0xFF;
+ ERROR_CODE ErrorCode = NO_ERR; /* tells us if there was an error erasing flash */
+
+ for (i = 0; i < TIMEOUT; i++) {
+ status_register = ReadStatusRegister();
+ if (!(status_register & Statusbit)) {
+ ErrorCode = NO_ERR; /* tells us if there was an error erasing flash */
+ break;
+ }
+ ErrorCode = POLL_TIMEOUT; /* Time out error */
+ };
+
+ return ErrorCode;
+}
+
+char ReadStatusRegister(void)
+{
+ char status_register = 0;
+
+ SetupSPI((COMMON_SPI_SETTINGS | TIMOD01)); /* Turn on the SPI */
+
+ *pSPI_TDBR = SPI_RDSR; /* send instruction to read status register */
+ __builtin_bfin_ssync();
+ Wait_For_SPIF(); /*wait until the instruction has been sent */
+ *pSPI_TDBR = 0; /*send dummy to receive the status register */
+ __builtin_bfin_ssync();
+ Wait_For_SPIF(); /*wait until the data has been sent */
+ status_register = *pSPI_RDBR; /*read the status register */
+
+ SPI_OFF(); /* Turn off the SPI */
+
+ return status_register;
+}
+
+ERROR_CODE GetSectorNumber(unsigned long ulOffset, int *pnSector)
+{
+ int nSector = 0;
+ ERROR_CODE ErrorCode = NO_ERR;
+
+ if (ulOffset > (NUM_SECTORS * 0x10000 - 1)) {
+ ErrorCode = INVALID_SECTOR;
+ return ErrorCode;
+ }
+
+ nSector = (int)ulOffset / 0x10000;
+ *pnSector = nSector;
+
+ /* ok */
+ return ErrorCode;
+}
+
+ERROR_CODE EraseBlock(int nBlock)
+{
+ unsigned long ulSectorOff = 0x0, ShiftValue;
+ ERROR_CODE ErrorCode = NO_ERR;
+
+ /* if the block is invalid just return */
+ if ((nBlock < 0) || (nBlock > NUM_SECTORS)) {
+ ErrorCode = INVALID_BLOCK; /* tells us if there was an error erasing flash */
+ return ErrorCode;
+ }
+ /* figure out the offset of the block in flash */
+ if ((nBlock >= 0) && (nBlock < NUM_SECTORS)) {
+ ulSectorOff = (nBlock * SECTOR_SIZE);
+
+ } else {
+ ErrorCode = INVALID_BLOCK; /* tells us if there was an error erasing flash */
+ return ErrorCode;
+ }
+
+ /* A write enable instruction must previously have been executed */
+ SendSingleCommand(SPI_WREN);
+
+ /*The status register will be polled to check the write enable latch "WREN" */
+ ErrorCode = Wait_For_WEL();
+
+ if (POLL_TIMEOUT == ErrorCode) {
+ printf("SPI Erase block error\n");
+ return ErrorCode;
+ } else
+ /*Turn on the SPI to send single commands */
+ SetupSPI((COMMON_SPI_SETTINGS | TIMOD01));
+
+ /* Send the erase block command to the flash followed by the 24 address */
+ /* to point to the start of a sector. */
+ *pSPI_TDBR = SPI_SE;
+ __builtin_bfin_ssync();
+ Wait_For_SPIF();
+ ShiftValue = (ulSectorOff >> 16); /* Send the highest byte of the 24 bit address at first */
+ *pSPI_TDBR = ShiftValue;
+ __builtin_bfin_ssync();
+ Wait_For_SPIF(); /* Wait until the instruction has been sent */
+ ShiftValue = (ulSectorOff >> 8); /* Send the middle byte of the 24 bit address at second */
+ *pSPI_TDBR = ShiftValue;
+ __builtin_bfin_ssync();
+ Wait_For_SPIF(); /* Wait until the instruction has been sent */
+ *pSPI_TDBR = ulSectorOff; /* Send the lowest byte of the 24 bit address finally */
+ __builtin_bfin_ssync();
+ Wait_For_SPIF(); /* Wait until the instruction has been sent */
+
+ /*Turns off the SPI */
+ SPI_OFF();
+
+ /* Poll the status register to check the Write in Progress bit */
+ /* Sector erase takes time */
+ ErrorCode = Wait_For_Status(WIP);
+
+ /* block erase should be complete */
+ return ErrorCode;
+}
+
+/*****************************************************************************
+* ERROR_CODE ReadData()
+*
+* Read a value from flash for verify purpose
+*
+* Inputs: unsigned long ulStart - holds the SPI start address
+* int pnData - pointer to store value read from flash
+* long lCount - number of elements to read
+***************************************************************************** */
+ERROR_CODE ReadData(unsigned long ulStart, long lCount, int *pnData)
+{
+ unsigned long ShiftValue;
+ char *cnData;
+ int i;
+
+ cnData = (char *)pnData; /* Pointer cast to be able to increment byte wise */
+
+ /* Start SPI interface */
+ SetupSPI((COMMON_SPI_SETTINGS | TIMOD01));
+
+ *pSPI_TDBR = SPI_READ; /* Send the read command to SPI device */
+ __builtin_bfin_ssync();
+ Wait_For_SPIF(); /* Wait until the instruction has been sent */
+ ShiftValue = (ulStart >> 16); /* Send the highest byte of the 24 bit address at first */
+ *pSPI_TDBR = ShiftValue; /* Send the byte to the SPI device */
+ __builtin_bfin_ssync();
+ Wait_For_SPIF(); /* Wait until the instruction has been sent */
+ ShiftValue = (ulStart >> 8); /* Send the middle byte of the 24 bit address at second */
+ *pSPI_TDBR = ShiftValue; /* Send the byte to the SPI device */
+ __builtin_bfin_ssync();
+ Wait_For_SPIF(); /* Wait until the instruction has been sent */
+ *pSPI_TDBR = ulStart; /* Send the lowest byte of the 24 bit address finally */
+ __builtin_bfin_ssync();
+ Wait_For_SPIF(); /* Wait until the instruction has been sent */
+
+ /* After the SPI device address has been placed on the MOSI pin the data can be */
+ /* received on the MISO pin. */
+ for (i = 0; i < lCount; i++) {
+ *pSPI_TDBR = 0; /*send dummy */
+ __builtin_bfin_ssync();
+ while (!(*pSPI_STAT & RXS)) ;
+ *cnData++ = *pSPI_RDBR; /*read */
+
+ if ((i >= SECTOR_SIZE) && (i % SECTOR_SIZE == 0))
+ printf(".");
+ }
+
+ SPI_OFF(); /* Turn off the SPI */
+
+ return NO_ERR;
+}
+
+ERROR_CODE WriteFlash(unsigned long ulStartAddr, long lTransferCount,
+ int *iDataSource, long *lWriteCount)
+{
+
+ unsigned long ulWAddr;
+ long lWTransferCount = 0;
+ int i;
+ char iData;
+ char *temp = (char *)iDataSource;
+ ERROR_CODE ErrorCode = NO_ERR; /* tells us if there was an error erasing flash */
+
+ /* First, a Write Enable Command must be sent to the SPI. */
+ SendSingleCommand(SPI_WREN);
+
+ /* Second, the SPI Status Register will be tested whether the */
+ /* Write Enable Bit has been set. */
+ ErrorCode = Wait_For_WEL();
+ if (POLL_TIMEOUT == ErrorCode) {
+ printf("SPI Write Time Out\n");
+ return ErrorCode;
+ } else
+ /* Third, the 24 bit address will be shifted out the SPI MOSI bytewise. */
+ SetupSPI((COMMON_SPI_SETTINGS | TIMOD01)); /* Turns the SPI on */
+ *pSPI_TDBR = SPI_PP;
+ __builtin_bfin_ssync();
+ Wait_For_SPIF(); /*wait until the instruction has been sent */
+ ulWAddr = (ulStartAddr >> 16);
+ *pSPI_TDBR = ulWAddr;
+ __builtin_bfin_ssync();
+ Wait_For_SPIF(); /*wait until the instruction has been sent */
+ ulWAddr = (ulStartAddr >> 8);
+ *pSPI_TDBR = ulWAddr;
+ __builtin_bfin_ssync();
+ Wait_For_SPIF(); /*wait until the instruction has been sent */
+ ulWAddr = ulStartAddr;
+ *pSPI_TDBR = ulWAddr;
+ __builtin_bfin_ssync();
+ Wait_For_SPIF(); /*wait until the instruction has been sent */
+ /* Fourth, maximum number of 256 bytes will be taken from the Buffer */
+ /* and sent to the SPI device. */
+ for (i = 0; (i < lTransferCount) && (i < 256); i++, lWTransferCount++) {
+ iData = *temp;
+ *pSPI_TDBR = iData;
+ __builtin_bfin_ssync();
+ Wait_For_SPIF(); /*wait until the instruction has been sent */
+ temp++;
+ }
+
+ SPI_OFF(); /* Turns the SPI off */
+
+ /* Sixth, the SPI Write in Progress Bit must be toggled to ensure the */
+ /* programming is done before start of next transfer. */
+ ErrorCode = Wait_For_Status(WIP);
+
+ if (POLL_TIMEOUT == ErrorCode) {
+ printf("SPI Program Time out!\n");
+ return ErrorCode;
+ } else
+
+ *lWriteCount = lWTransferCount;
+
+ return ErrorCode;
+}
+
+ERROR_CODE WriteData(unsigned long ulStart, long lCount, int *pnData)
+{
+
+ unsigned long ulWStart = ulStart;
+ long lWCount = lCount, lWriteCount;
+ long *pnWriteCount = &lWriteCount;
+
+ ERROR_CODE ErrorCode = NO_ERR;
+
+ while (lWCount != 0) {
+ ErrorCode = WriteFlash(ulWStart, lWCount, pnData, pnWriteCount);
+
+ /* After each function call of WriteFlash the counter must be adjusted */
+ lWCount -= *pnWriteCount;
+
+ /* Also, both address pointers must be recalculated. */
+ ulWStart += *pnWriteCount;
+ pnData += *pnWriteCount / 4;
+ }
+
+ /* return the appropriate error code */
+ return ErrorCode;
+}
+
+#endif /* CONFIG_SPI */
diff --git a/board/bf533-stamp/u-boot.lds.S b/board/bf533-stamp/u-boot.lds.S
new file mode 100644
index 0000000000..48d55fab1e
--- /dev/null
+++ b/board/bf533-stamp/u-boot.lds.S
@@ -0,0 +1,153 @@
+/*
+ * U-boot - u-boot.lds.S
+ *
+ * Copyright (c) 2005-2007 Analog Device Inc.
+ *
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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 <config.h>
+
+OUTPUT_ARCH(bfin)
+SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib);
+/* Do we need any of these for elf?
+ __DYNAMIC = 0; */
+SECTIONS
+{
+ /* Read-only sections, merged into text segment: */
+ . = + SIZEOF_HEADERS;
+ .interp : { *(.interp) }
+ .hash : { *(.hash) }
+ .dynsym : { *(.dynsym) }
+ .dynstr : { *(.dynstr) }
+ .rel.text : { *(.rel.text) }
+ .rela.text : { *(.rela.text) }
+ .rel.data : { *(.rel.data) }
+ .rela.data : { *(.rela.data) }
+ .rel.rodata : { *(.rel.rodata) }
+ .rela.rodata : { *(.rela.rodata) }
+ .rel.got : { *(.rel.got) }
+ .rela.got : { *(.rela.got) }
+ .rel.ctors : { *(.rel.ctors) }
+ .rela.ctors : { *(.rela.ctors) }
+ .rel.dtors : { *(.rel.dtors) }
+ .rela.dtors : { *(.rela.dtors) }
+ .rel.bss : { *(.rel.bss) }
+ .rela.bss : { *(.rela.bss) }
+ .rel.plt : { *(.rel.plt) }
+ .rela.plt : { *(.rela.plt) }
+ .init : { *(.init) }
+ .plt : { *(.plt) }
+ . = CFG_MONITOR_BASE;
+ .text :
+ {
+ /* WARNING - the following is hand-optimized to fit within */
+ /* the sector before the environment sector. If it throws */
+ /* an error during compilation remove an object here to get */
+ /* it linked after the configuration sector. */
+
+ cpu/bf533/start.o (.text)
+ cpu/bf533/start1.o (.text)
+ cpu/bf533/traps.o (.text)
+ cpu/bf533/interrupt.o (.text)
+ cpu/bf533/serial.o (.text)
+ common/dlmalloc.o (.text)
+/* lib_blackfin/bf533_string.o (.text) */
+/* lib_generic/vsprintf.o (.text) */
+ lib_generic/crc32.o (.text)
+/* lib_generic/zlib.o (.text) */
+/* board/stamp/stamp.o (.text) */
+
+ . = DEFINED(env_offset) ? env_offset : .;
+ common/environment.o (.text)
+
+ *(.text)
+ *(.fixup)
+ *(.got1)
+ }
+ _etext = .;
+ PROVIDE (etext = .);
+ .rodata :
+ {
+ *(.rodata)
+ *(.rodata1)
+ *(.rodata.str1.4)
+ }
+ .fini : { *(.fini) } =0
+ .ctors : { *(.ctors) }
+ .dtors : { *(.dtors) }
+
+ /* Read-write section, merged into data segment: */
+ . = (. + 0x00FF) & 0xFFFFFF00;
+ _erotext = .;
+ PROVIDE (erotext = .);
+ .reloc :
+ {
+ *(.got)
+ _GOT2_TABLE_ = .;
+ *(.got2)
+ _FIXUP_TABLE_ = .;
+ *(.fixup)
+ }
+ __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
+ __fixup_entries = (. - _FIXUP_TABLE_)>>2;
+
+ .data :
+ {
+ *(.data)
+ *(.data1)
+ *(.sdata)
+ *(.sdata2)
+ *(.dynamic)
+ CONSTRUCTORS
+ }
+ _edata = .;
+ PROVIDE (edata = .);
+
+ ___u_boot_cmd_start = .;
+ .u_boot_cmd : { *(.u_boot_cmd) }
+ ___u_boot_cmd_end = .;
+
+
+ __start___ex_table = .;
+ __ex_table : { *(__ex_table) }
+ __stop___ex_table = .;
+
+ . = ALIGN(256);
+ __init_begin = .;
+ .text.init : { *(.text.init) }
+ .data.init : { *(.data.init) }
+ . = ALIGN(256);
+ __init_end = .;
+
+ __bss_start = .;
+ .bss :
+ {
+ *(.sbss) *(.scommon)
+ *(.dynbss)
+ *(.bss)
+ *(COMMON)
+ }
+ _end = . ;
+ PROVIDE (end = .);
+}
+