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-rw-r--r--board/evb4510/flash.c539
1 files changed, 0 insertions, 539 deletions
diff --git a/board/evb4510/flash.c b/board/evb4510/flash.c
deleted file mode 100644
index c9c6e02..0000000
--- a/board/evb4510/flash.c
+++ /dev/null
@@ -1,539 +0,0 @@
-/*
- *
- * Copyright (c) 2004 Cucy Systems (http://www.cucy.com)
- * Curt Brune <curt@cucy.com>
- *
- * 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/hardware.h>
-#include <flash.h>
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
-
-typedef enum {
- FLASH_DEV_U9_512KB = 0,
- FLASH_DEV_U7_2MB = 1
-} FLASH_DEV;
-
-#define FLASH_DQ7 (0x80)
-#define FLASH_DQ5 (0x20)
-
-#define PROG_ADDR (0xAAA)
-#define SETUP_ADDR (0xAAA)
-#define ID_ADDR (0xAAA)
-#define UNLOCK_ADDR1 (0xAAA)
-#define UNLOCK_ADDR2 (0x555)
-
-#define UNLOCK_CMD1 (0xAA)
-#define UNLOCK_CMD2 (0x55)
-#define ERASE_SUSPEND_CMD (0xB0)
-#define ERASE_RESUME_CMD (0x30)
-#define RESET_CMD (0xF0)
-#define ID_CMD (0x90)
-#define SELECT_CMD (0x90)
-#define CHIPERASE_CMD (0x10)
-#define BYPASS_CMD (0x20)
-#define SECERASE_CMD (0x30)
-#define PROG_CMD (0xa0)
-#define SETUP_CMD (0x80)
-
-#if 0
-#define WRITE_UNLOCK(addr) { \
- PUT__U8( addr + UNLOCK_ADDR1, UNLOCK_CMD1); \
- PUT__U8( addr + UNLOCK_ADDR2, UNLOCK_CMD2); \
-}
-
-/* auto select command */
-#define CMD_ID(addr) WRITE_UNLOCK(addr); { \
- PUT__U8( addr + ID_ADDR, ID_CMD); \
-}
-
-#define CMD_RESET(addr) WRITE_UNLOCK(addr); { \
- PUT__U8( addr + ID_ADDR, RESET_CMD); \
-}
-
-#define CMD_ERASE_SEC(base, addr) WRITE_UNLOCK(base); \
- PUT__U8( base + SETUP_ADDR, SETUP_CMD); \
- WRITE_UNLOCK(base); \
- PUT__U8( addr, SECERASE_CMD);
-
-#define CMD_ERASE_CHIP(base) WRITE_UNLOCK(base); \
- PUT__U8( base + SETUP_ADDR, SETUP_CMD); \
- WRITE_UNLOCK(base); \
- PUT__U8( base + SETUP_ADDR, CHIPERASE_CMD);
-
-/* prepare for bypass programming */
-#define CMD_UNLOCK_BYPASS(addr) WRITE_UNLOCK(addr); { \
- PUT__U8( addr + ID_ADDR, 0x20); \
-}
-
-/* terminate bypass programming */
-#define CMD_BYPASS_RESET(addr) { \
- PUT__U8(addr, 0x90); \
- PUT__U8(addr, 0x00); \
-}
-#endif
-
-inline static void FLASH_CMD_UNLOCK (FLASH_DEV dev, u32 base)
-{
- switch (dev) {
- case FLASH_DEV_U7_2MB:
- PUT__U8 (base + 0xAAA, 0xAA);
- PUT__U8 (base + 0x555, 0x55);
- break;
- case FLASH_DEV_U9_512KB:
- PUT__U8 (base + 0x555, 0xAA);
- PUT__U8 (base + 0x2AA, 0x55);
- break;
- }
-}
-
-inline static void FLASH_CMD_SELECT (FLASH_DEV dev, u32 base)
-{
- switch (dev) {
- case FLASH_DEV_U7_2MB:
- FLASH_CMD_UNLOCK (dev, base);
- PUT__U8 (base + 0xAAA, SELECT_CMD);
- break;
- case FLASH_DEV_U9_512KB:
- FLASH_CMD_UNLOCK (dev, base);
- PUT__U8 (base + 0x555, SELECT_CMD);
- break;
- }
-}
-
-inline static void FLASH_CMD_RESET (FLASH_DEV dev, u32 base)
-{
- switch (dev) {
- case FLASH_DEV_U7_2MB:
- FLASH_CMD_UNLOCK (dev, base);
- PUT__U8 (base + 0xAAA, RESET_CMD);
- break;
- case FLASH_DEV_U9_512KB:
- FLASH_CMD_UNLOCK (dev, base);
- PUT__U8 (base + 0x555, RESET_CMD);
- break;
- }
-}
-
-inline static void FLASH_CMD_ERASE_SEC (FLASH_DEV dev, u32 base, u32 addr)
-{
- switch (dev) {
- case FLASH_DEV_U7_2MB:
- FLASH_CMD_UNLOCK (dev, base);
- PUT__U8 (base + 0xAAA, SETUP_CMD);
- FLASH_CMD_UNLOCK (dev, base);
- PUT__U8 (addr, SECERASE_CMD);
- break;
- case FLASH_DEV_U9_512KB:
- FLASH_CMD_UNLOCK (dev, base);
- PUT__U8 (base + 0x555, SETUP_CMD);
- FLASH_CMD_UNLOCK (dev, base);
- PUT__U8 (addr, SECERASE_CMD);
- break;
- }
-}
-
-inline static void FLASH_CMD_ERASE_CHIP (FLASH_DEV dev, u32 base)
-{
- switch (dev) {
- case FLASH_DEV_U7_2MB:
- FLASH_CMD_UNLOCK (dev, base);
- PUT__U8 (base + 0xAAA, SETUP_CMD);
- FLASH_CMD_UNLOCK (dev, base);
- PUT__U8 (base, CHIPERASE_CMD);
- break;
- case FLASH_DEV_U9_512KB:
- FLASH_CMD_UNLOCK (dev, base);
- PUT__U8 (base + 0x555, SETUP_CMD);
- FLASH_CMD_UNLOCK (dev, base);
- PUT__U8 (base, CHIPERASE_CMD);
- break;
- }
-}
-
-inline static void FLASH_CMD_UNLOCK_BYPASS (FLASH_DEV dev, u32 base)
-{
- switch (dev) {
- case FLASH_DEV_U7_2MB:
- FLASH_CMD_UNLOCK (dev, base);
- PUT__U8 (base + 0xAAA, BYPASS_CMD);
- break;
- case FLASH_DEV_U9_512KB:
- FLASH_CMD_UNLOCK (dev, base);
- PUT__U8 (base + 0x555, BYPASS_CMD);
- break;
- }
-}
-
-inline static void FLASH_CMD_BYPASS_RESET (FLASH_DEV dev, u32 base)
-{
- PUT__U8 (base, SELECT_CMD);
- PUT__U8 (base, 0x0);
-}
-
-/* poll for flash command completion */
-static u16 _flash_poll (FLASH_DEV dev, u32 addr, u16 data, ulong timeOut)
-{
- u32 done = 0;
- ulong t0;
-
- u16 error = 0;
- volatile u16 flashData;
-
- data = data & 0xFF;
- t0 = get_timer (0);
- while (get_timer (t0) < timeOut) {
- /* for( i = 0; i < POLL_LOOPS; i++) { */
- /* Read the Data */
- flashData = GET__U8 (addr);
-
- /* FLASH_DQ7 = Data? */
- if ((flashData & FLASH_DQ7) == (data & FLASH_DQ7)) {
- done = 1;
- break;
- }
-
- /* Check Timeout (FLASH_DQ5==1) */
- if (flashData & FLASH_DQ5) {
- /* Read the Data */
- flashData = GET__U8 (addr);
-
- /* FLASH_DQ7 = Data? */
- if (!((flashData & FLASH_DQ7) == (data & FLASH_DQ7))) {
- printf ("_flash_poll(): FLASH_DQ7 & flashData not equal to write value\n");
- error = ERR_PROG_ERROR;
- }
- FLASH_CMD_RESET (dev, addr);
- done = 1;
- break;
- }
- /* spin delay */
- udelay (10);
- }
-
-
- /* error update */
- if (!done) {
- printf ("_flash_poll(): Timeout\n");
- error = ERR_TIMOUT;
- }
-
- /* Check the data */
- if (!error) {
- /* Read the Data */
- flashData = GET__U8 (addr);
- if (flashData != data) {
- error = ERR_PROG_ERROR;
- printf ("_flash_poll(): flashData(0x%04x) not equal to data(0x%04x)\n",
- flashData, data);
- }
- }
-
- return error;
-}
-
-/*-----------------------------------------------------------------------
- */
-static int _flash_check_protection (flash_info_t * info, int s_first, int s_last)
-{
- int sect, prot = 0;
-
- for (sect = s_first; sect <= s_last; sect++)
- if (info->protect[sect]) {
- printf (" Flash sector %d protected.\n", sect);
- prot++;
- }
- return prot;
-}
-
-static int _detectFlash (FLASH_DEV dev, u32 base, u8 venId, u8 devId)
-{
-
- u32 baseAddr = base | CACHE_DISABLE_MASK;
- u8 vendorId, deviceId;
-
- /* printf(__FUNCTION__"(): detecting flash @ 0x%08x\n", base); */
-
- /* Send auto select command and read manufacturer info */
- FLASH_CMD_SELECT (dev, baseAddr);
- vendorId = GET__U8 (baseAddr);
- FLASH_CMD_RESET (dev, baseAddr);
-
- /* Send auto select command and read device info */
- FLASH_CMD_SELECT (dev, baseAddr);
-
- if (dev == FLASH_DEV_U7_2MB) {
- deviceId = GET__U8 (baseAddr + 2);
- } else if (dev == FLASH_DEV_U9_512KB) {
- deviceId = GET__U8 (baseAddr + 1);
- } else {
- return 0;
- }
-
- FLASH_CMD_RESET (dev, baseAddr);
-
- /* printf (__FUNCTION__"(): found vendorId 0x%04x, deviceId 0x%04x\n",
- vendorId, deviceId);
- */
-
- return (vendorId == venId) && (deviceId == devId);
-
-}
-
-/******************************************************************************
- *
- * Public u-boot interface functions below
- *
- *****************************************************************************/
-
-/***************************************************************************
- *
- * Flash initialization
- *
- * This board has two banks of flash, but the base addresses depend on
- * how the board is jumpered.
- *
- * The two flash types are:
- *
- * AMD Am29LV160DB (2MB) sectors layout 16KB, 2x8KB, 32KB, 31x64KB
- *
- * AMD Am29LV040B (512KB) sectors: 8x64KB
- *****************************************************************************/
-
-unsigned long flash_init (void)
-{
- flash_info_t *info;
- u16 i;
- u32 flashtest;
- s16 amd160 = -1;
- u32 amd160base = 0;
-
-#if CONFIG_SYS_MAX_FLASH_BANKS == 2
- s16 amd040 = -1;
- u32 amd040base = 0;
-#endif
-
- /* configure PHYS_FLASH_1 */
- if (_detectFlash (FLASH_DEV_U7_2MB, PHYS_FLASH_1, 0x1, 0x49)) {
- amd160 = 0;
- amd160base = PHYS_FLASH_1;
-#if CONFIG_SYS_MAX_FLASH_BANKS == 1
- }
-#else
- if (_detectFlash
- (FLASH_DEV_U9_512KB, PHYS_FLASH_2, 0x1, 0x4F)) {
- amd040 = 1;
- amd040base = PHYS_FLASH_2;
- } else {
- printf (__FUNCTION__
- "(): Unable to detect PHYS_FLASH_2: 0x%08x\n",
- PHYS_FLASH_2);
- }
- } else if (_detectFlash (FLASH_DEV_U9_512KB, PHYS_FLASH_1, 0x1, 0x4F)) {
- amd040 = 0;
- amd040base = PHYS_FLASH_1;
- if (_detectFlash (FLASH_DEV_U7_2MB, PHYS_FLASH_2, 0x1, 0x49)) {
- amd160 = 1;
- amd160base = PHYS_FLASH_2;
- } else {
- printf (__FUNCTION__
- "(): Unable to detect PHYS_FLASH_2: 0x%08x\n",
- PHYS_FLASH_2);
- }
- }
-#endif
- else {
- printf ("flash_init(): Unable to detect PHYS_FLASH_1: 0x%08x\n",
- PHYS_FLASH_1);
- }
-
- /* Configure AMD Am29LV160DB (2MB) */
- info = &flash_info[amd160];
- info->flash_id = FLASH_DEV_U7_2MB;
- info->sector_count = 35;
- info->size = 2 * 1024 * 1024; /* 2MB */
- /* 1*16K Boot Block
- 2*8K Parameter Block
- 1*32K Small Main Block */
- info->start[0] = amd160base;
- info->start[1] = amd160base + 0x4000;
- info->start[2] = amd160base + 0x6000;
- info->start[3] = amd160base + 0x8000;
- for (i = 1; i < info->sector_count; i++)
- info->start[3 + i] = amd160base + i * (64 * 1024);
-
- for (i = 0; i < info->sector_count; i++) {
- /* Write auto select command sequence and query sector protection */
- FLASH_CMD_SELECT (info->flash_id,
- info->start[i] | CACHE_DISABLE_MASK);
- flashtest =
- GET__U8 (((info->start[i] + 4) | CACHE_DISABLE_MASK));
- FLASH_CMD_RESET (info->flash_id,
- amd160base | CACHE_DISABLE_MASK);
- info->protect[i] = (flashtest & 0x0001);
- }
-
- /*
- * protect monitor and environment sectors in 2MB flash
- */
- flash_protect (FLAG_PROTECT_SET,
- amd160base, amd160base + monitor_flash_len - 1, info);
-
- flash_protect (FLAG_PROTECT_SET,
- CONFIG_ENV_ADDR, CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1, info);
-
-#if CONFIG_SYS_MAX_FLASH_BANKS == 2
- /* Configure AMD Am29LV040B (512KB) */
- info = &flash_info[amd040];
- info->flash_id = FLASH_DEV_U9_512KB;
- info->sector_count = 8;
- info->size = 512 * 1024; /* 512KB, 8 x 64KB */
- for (i = 0; i < info->sector_count; i++) {
- info->start[i] = amd040base + i * (64 * 1024);
- /* Write auto select command sequence and query sector protection */
- FLASH_CMD_SELECT (info->flash_id,
- info->start[i] | CACHE_DISABLE_MASK);
- flashtest =
- GET__U8 (((info->start[i] + 2) | CACHE_DISABLE_MASK));
- FLASH_CMD_RESET (info->flash_id,
- amd040base | CACHE_DISABLE_MASK);
- info->protect[i] = (flashtest & 0x0001);
- }
-#endif
-
- return flash_info[0].size
-#if CONFIG_SYS_MAX_FLASH_BANKS == 2
- + flash_info[1].size
-#endif
- ;
-}
-
-void flash_print_info (flash_info_t * info)
-{
- int i;
-
- if (info->flash_id == FLASH_DEV_U7_2MB) {
- printf ("AMD Am29LV160DB (2MB) 16KB,2x8KB,32KB,31x64KB\n");
- } else if (info->flash_id == FLASH_DEV_U9_512KB) {
- printf ("AMD Am29LV040B (512KB) 8x64KB\n");
- } else {
- printf ("Unknown flash_id ...\n");
- return;
- }
-
- printf (" Size: %ld KB in %d Sectors\n",
- info->size >> 10, info->sector_count);
- printf (" Sector Start Addresses:");
- for (i = 0; i < info->sector_count; i++) {
- if ((i % 4) == 0)
- printf ("\n ");
- printf (" S%02d @ 0x%08lX%s", i,
- info->start[i], info->protect[i] ? " !" : " ");
- }
- printf ("\n");
-}
-
-int flash_erase (flash_info_t * info, int s_first, int s_last)
-{
- u16 i, error = 0;
-
- printf ("\n");
-
- /* check flash protection bits */
- if (_flash_check_protection (info, s_first, s_last)) {
- printf (" Flash erase aborted due to protected sectors\n");
- return ERR_PROTECTED;
- }
-
- if ((s_first < info->sector_count) && (s_first <= s_last)) {
- for (i = s_first; i <= s_last && !error; i++) {
- printf (" Erasing Sector %d @ 0x%08lx ... ", i,
- info->start[i]);
- /* bypass the cache to access the flash memory */
- FLASH_CMD_ERASE_SEC (info->flash_id,
- (info->
- start[0] | CACHE_DISABLE_MASK),
- (info->
- start[i] | CACHE_DISABLE_MASK));
- /* look for sector to become 0xFF after erase */
- error = _flash_poll (info->flash_id,
- info->
- start[i] | CACHE_DISABLE_MASK,
- 0xFF, CONFIG_SYS_FLASH_ERASE_TOUT);
- FLASH_CMD_RESET (info->flash_id,
- (info->
- start[0] | CACHE_DISABLE_MASK));
- printf ("done\n");
- if (error) {
- break;
- }
- }
- } else
- error = ERR_INVAL;
-
- return error;
-}
-
-int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
-{
- u16 error = 0, i;
- u32 n;
- u8 *bp, *bps;
-
- /* Write Setup */
- /* bypass the cache to access the flash memory */
- FLASH_CMD_UNLOCK_BYPASS (info->flash_id,
- (info->start[0] | CACHE_DISABLE_MASK));
-
- /* Write the Data to Flash */
-
- bp = (u8 *) (addr | CACHE_DISABLE_MASK);
- bps = (u8 *) src;
-
- for (n = 0; n < cnt && !error; n++, bp++, bps++) {
-
- if (!(n % (cnt / 15))) {
- printf (".");
- }
-
- /* write the flash command for flash memory */
- *bp = 0xA0;
-
- /* Write the data */
- *bp = *bps;
-
- /* Check if the write is done */
- for (i = 0; i < 0xff; i++);
- error = _flash_poll (info->flash_id, (u32) bp, *bps,
- CONFIG_SYS_FLASH_WRITE_TOUT);
- if (error) {
- return error;
- }
- }
-
- /* Reset the Flash Mode to read */
- FLASH_CMD_BYPASS_RESET (info->flash_id, info->start[0]);
-
- printf (" ");
-
- return error;
-}