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Diffstat (limited to 'board/bf537-stamp/flash.c')
-rw-r--r--board/bf537-stamp/flash.c403
1 files changed, 0 insertions, 403 deletions
diff --git a/board/bf537-stamp/flash.c b/board/bf537-stamp/flash.c
deleted file mode 100644
index 8252c42..0000000
--- a/board/bf537-stamp/flash.c
+++ /dev/null
@@ -1,403 +0,0 @@
-/*
- * U-boot - flash.c Flash driver for PSD4256GV
- *
- * Copyright (c) 2005-2007 Analog Devices Inc.
- * This file is based on BF533EzFlash.c originally written by Analog Devices, 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., 51 Franklin St, Fifth Floor, Boston,
- * MA 02110-1301 USA
- */
-
-#include <malloc.h>
-#include <config.h>
-#include <asm/io.h>
-#include "flash-defines.h"
-
-void flash_reset(void)
-{
- reset_flash();
-}
-
-unsigned long flash_get_size(ulong baseaddr, flash_info_t * info, int bank_flag)
-{
- int id = 0, i = 0;
- static int FlagDev = 1;
-
- id = get_codes();
- if (FlagDev) {
- FlagDev = 0;
- }
- info->flash_id = id;
- switch (bank_flag) {
- case 0:
- for (i = PriFlashABegin; i < SecFlashABegin; i++)
- info->start[i] = (baseaddr + (i * AFP_SectorSize1));
- for (i = SecFlashABegin; i < NUM_SECTORS; i++)
- info->start[i] =
- (baseaddr + SecFlashAOff +
- ((i - SecFlashABegin) * AFP_SectorSize2));
- info->size = 0x400000;
- info->sector_count = NUM_SECTORS;
- break;
- case 1:
- info->start[0] = baseaddr + SecFlashASec1Off;
- info->start[1] = baseaddr + SecFlashASec2Off;
- info->start[2] = baseaddr + SecFlashASec3Off;
- info->start[3] = baseaddr + SecFlashASec4Off;
- info->size = 0x10000;
- info->sector_count = 4;
- break;
- case 2:
- info->start[0] = baseaddr + SecFlashBSec1Off;
- info->start[1] = baseaddr + SecFlashBSec2Off;
- info->start[2] = baseaddr + SecFlashBSec3Off;
- info->start[3] = baseaddr + SecFlashBSec4Off;
- info->size = 0x10000;
- info->sector_count = 4;
- break;
- }
- return (info->size);
-}
-
-unsigned long flash_init(void)
-{
- unsigned long size_b;
- int i;
-
- size_b = 0;
- for (i = 0; i < CFG_MAX_FLASH_BANKS; ++i) {
- flash_info[i].flash_id = FLASH_UNKNOWN;
- }
-
- size_b = flash_get_size(CFG_FLASH_BASE, &flash_info[0], 0);
-
- if (flash_info[0].flash_id == FLASH_UNKNOWN || size_b == 0) {
- printf("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
- size_b, size_b >> 20);
- }
-
- /* flash_protect (int flag, ulong from, ulong to, flash_info_t *info) */
- (void)flash_protect(FLAG_PROTECT_SET, CFG_FLASH_BASE,
- (flash_info[0].start[2] - 1), &flash_info[0]);
-#if (BFIN_BOOT_MODE == BF537_BYPASS_BOOT)
- (void)flash_protect(FLAG_PROTECT_SET, 0x203F0000, 0x203FFFFF,
- &flash_info[0]);
-#endif
-
- return (size_b);
-}
-
-void flash_print_info(flash_info_t * info)
-{
- int i;
-
- if (info->flash_id == FLASH_UNKNOWN) {
- printf("missing or unknown FLASH type\n");
- return;
- }
-
- switch (info->flash_id) {
- case (STM_ID_29W320EB & 0xFFFF):
- case (STM_ID_29W320DB & 0xFFFF):
- printf("ST Microelectronics ");
- break;
- default:
- printf("Unknown Vendor: (0x%08X) ", info->flash_id);
- break;
- }
- for (i = 0; i < info->sector_count; ++i) {
- if ((i % 5) == 0)
- printf("\n ");
- printf(" %08lX%s",
- info->start[i], info->protect[i] ? " (RO)" : " ");
- }
- printf("\n");
- return;
-}
-
-int flash_erase(flash_info_t * info, int s_first, int s_last)
-{
- int cnt = 0, i;
- int prot, sect;
-
- prot = 0;
- for (sect = s_first; sect <= s_last; ++sect) {
- if (info->protect[sect])
- prot++;
- }
- if (prot)
- printf("- Warning: %d protected sectors will not be erased!\n",
- prot);
- else
- printf("\n");
-
- cnt = s_last - s_first + 1;
-
-#if (BFIN_BOOT_MODE == BF537_BYPASS_BOOT)
- printf("Erasing Flash locations, Please Wait\n");
- for (i = s_first; i <= s_last; i++) {
- if (info->protect[i] == 0) { /* not protected */
- if (erase_block_flash(i) < 0) {
- printf("Error Sector erasing \n");
- return FLASH_FAIL;
- }
- }
- }
-#elif (BFIN_BOOT_MODE == BF537_SPI_MASTER_BOOT)
- if (cnt == FLASH_TOT_SECT) {
- printf("Erasing flash, Please Wait \n");
- if (erase_flash() < 0) {
- printf("Erasing flash failed \n");
- return FLASH_FAIL;
- }
- } else {
- printf("Erasing Flash locations, Please Wait\n");
- for (i = s_first; i <= s_last; i++) {
- if (info->protect[i] == 0) { /* not protected */
- if (erase_block_flash(i) < 0) {
- printf("Error Sector erasing \n");
- return FLASH_FAIL;
- }
- }
- }
- }
-#endif
- printf("\n");
- return FLASH_SUCCESS;
-}
-
-int write_buff(flash_info_t * info, uchar * src, ulong addr, ulong cnt)
-{
- int d;
- if (addr % 2) {
- read_flash(addr - 1 - CFG_FLASH_BASE, &d);
- d = (int)((d & 0x00FF) | (*src++ << 8));
- write_data(addr - 1, 2, (uchar *) & d);
- write_data(addr + 1, cnt - 1, src);
- } else
- write_data(addr, cnt, src);
- return FLASH_SUCCESS;
-}
-
-int write_data(long lStart, long lCount, uchar * pnData)
-{
- long i = 0;
- unsigned long ulOffset = lStart - CFG_FLASH_BASE;
- int d;
- int nSector = 0;
- int flag = 0;
-
- if (lCount % 2) {
- flag = 1;
- lCount = lCount - 1;
- }
-
- for (i = 0; i < lCount - 1; i += 2, ulOffset += 2) {
- get_sector_number(ulOffset, &nSector);
- read_flash(ulOffset, &d);
- if (d != 0xffff) {
- printf
- ("Flash not erased at offset 0x%x Please erase to reprogram \n",
- ulOffset);
- return FLASH_FAIL;
- }
- unlock_flash(ulOffset);
- d = (int)(pnData[i] | pnData[i + 1] << 8);
- write_flash(ulOffset, d);
- if (poll_toggle_bit(ulOffset) < 0) {
- printf("Error programming the flash \n");
- return FLASH_FAIL;
- }
- if ((i > 0) && (!(i % AFP_SectorSize2)))
- printf(".");
- }
- if (flag) {
- get_sector_number(ulOffset, &nSector);
- read_flash(ulOffset, &d);
- if (d != 0xffff) {
- printf
- ("Flash not erased at offset 0x%x Please erase to reprogram \n",
- ulOffset);
- return FLASH_FAIL;
- }
- unlock_flash(ulOffset);
- d = (int)(pnData[i] | (d & 0xFF00));
- write_flash(ulOffset, d);
- if (poll_toggle_bit(ulOffset) < 0) {
- printf("Error programming the flash \n");
- return FLASH_FAIL;
- }
- }
- return FLASH_SUCCESS;
-}
-
-int write_flash(long nOffset, int nValue)
-{
- long addr;
-
- addr = (CFG_FLASH_BASE + nOffset);
- *(unsigned volatile short *)addr = nValue;
- SSYNC();
-#if (BFIN_BOOT_MODE == BF537_SPI_MASTER_BOOT)
- if (icache_status())
- udelay(CONFIG_CCLK_HZ / 1000000);
-#endif
- return FLASH_SUCCESS;
-}
-
-int read_flash(long nOffset, int *pnValue)
-{
- unsigned short *pFlashAddr =
- (unsigned short *)(CFG_FLASH_BASE + nOffset);
-
- *pnValue = *pFlashAddr;
-
- return TRUE;
-}
-
-int poll_toggle_bit(long lOffset)
-{
- unsigned int u1, u2;
- volatile unsigned long *FB =
- (volatile unsigned long *)(CFG_FLASH_BASE + lOffset);
- while (1) {
- u1 = *(volatile unsigned short *)FB;
- u2 = *(volatile unsigned short *)FB;
- u1 ^= u2;
- if (!(u1 & 0x0040))
- break;
- if (!(u2 & 0x0020))
- continue;
- else {
- u1 = *(volatile unsigned short *)FB;
- u2 = *(volatile unsigned short *)FB;
- u1 ^= u2;
- if (!(u1 & 0x0040))
- break;
- else {
- reset_flash();
- return FLASH_FAIL;
- }
- }
- }
- return FLASH_SUCCESS;
-}
-
-void reset_flash(void)
-{
- write_flash(WRITESEQ1, RESET_VAL);
- /* Wait for 10 micro seconds */
- udelay(10);
-}
-
-int erase_flash(void)
-{
- write_flash(WRITESEQ1, WRITEDATA1);
- write_flash(WRITESEQ2, WRITEDATA2);
- write_flash(WRITESEQ3, WRITEDATA3);
- write_flash(WRITESEQ4, WRITEDATA4);
- write_flash(WRITESEQ5, WRITEDATA5);
- write_flash(WRITESEQ6, WRITEDATA6);
-
- if (poll_toggle_bit(0x0000) < 0)
- return FLASH_FAIL;
-
- return FLASH_SUCCESS;
-}
-
-int erase_block_flash(int nBlock)
-{
- long ulSectorOff = 0x0;
-
- if ((nBlock < 0) || (nBlock > AFP_NumSectors))
- return FALSE;
-
- /* figure out the offset of the block in flash */
- if ((nBlock >= 0) && (nBlock < SecFlashABegin))
- ulSectorOff = nBlock * AFP_SectorSize1;
-
- else if ((nBlock >= SecFlashABegin) && (nBlock < NUM_SECTORS))
- ulSectorOff =
- SecFlashAOff + (nBlock - SecFlashABegin) * AFP_SectorSize2;
- /* no such sector */
- else
- return FLASH_FAIL;
-
- write_flash((WRITESEQ1 | ulSectorOff), WRITEDATA1);
- write_flash((WRITESEQ2 | ulSectorOff), WRITEDATA2);
- write_flash((WRITESEQ3 | ulSectorOff), WRITEDATA3);
- write_flash((WRITESEQ4 | ulSectorOff), WRITEDATA4);
- write_flash((WRITESEQ5 | ulSectorOff), WRITEDATA5);
-
- write_flash(ulSectorOff, BlockEraseVal);
-
- if (poll_toggle_bit(ulSectorOff) < 0)
- return FLASH_FAIL;
- printf(".");
-
- return FLASH_SUCCESS;
-}
-
-void unlock_flash(long ulOffset)
-{
- unsigned long ulOffsetAddr = ulOffset;
- ulOffsetAddr &= 0xFFFF0000;
-
- write_flash((WRITESEQ1 | ulOffsetAddr), UNLOCKDATA1);
- write_flash((WRITESEQ2 | ulOffsetAddr), UNLOCKDATA2);
- write_flash((WRITESEQ3 | ulOffsetAddr), UNLOCKDATA3);
-}
-
-int get_codes()
-{
- int dev_id = 0;
-
- write_flash(WRITESEQ1, GETCODEDATA1);
- write_flash(WRITESEQ2, GETCODEDATA2);
- write_flash(WRITESEQ3, GETCODEDATA3);
-
- read_flash(0x0402, &dev_id);
- dev_id &= 0x0000FFFF;
-
- reset_flash();
-
- return dev_id;
-}
-
-void get_sector_number(long ulOffset, int *pnSector)
-{
- int nSector = 0;
- long lMainEnd = 0x400000;
- long lBootEnd = 0x10000;
-
- /* sector numbers for the FLASH A boot sectors */
- if (ulOffset < lBootEnd) {
- nSector = (int)ulOffset / AFP_SectorSize1;
- }
- /* sector numbers for the FLASH B boot sectors */
- else if ((ulOffset >= lBootEnd) && (ulOffset < lMainEnd)) {
- nSector = ((ulOffset / (AFP_SectorSize2)) + 7);
- }
- /* if it is a valid sector, set it */
- if ((nSector >= 0) && (nSector < AFP_NumSectors))
- *pnSector = nSector;
-
-}
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