summaryrefslogtreecommitdiff
path: root/board/amcc/yellowstone/flash.c
diff options
context:
space:
mode:
Diffstat (limited to 'board/amcc/yellowstone/flash.c')
-rw-r--r--board/amcc/yellowstone/flash.c571
1 files changed, 0 insertions, 571 deletions
diff --git a/board/amcc/yellowstone/flash.c b/board/amcc/yellowstone/flash.c
deleted file mode 100644
index cd6a2e61e6..0000000000
--- a/board/amcc/yellowstone/flash.c
+++ /dev/null
@@ -1,571 +0,0 @@
-/*
- * (C) Copyright 2002-2004
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * (C) Copyright 2002 Jun Gu <jung@artesyncp.com>
- * Add support for Am29F016D and dynamic switch setting.
- *
- * 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
- */
-
-/*
- * Modified 4/5/2001
- * Wait for completion of each sector erase command issued
- * 4/5/2001
- * Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com
- */
-
-/*
- * Ported to XPedite1000, 1/2 mb boot flash only
- * Travis B. Sawyer, <travis.sawyer@sandburst.com>
- */
-
-#include <common.h>
-#include <ppc4xx.h>
-#include <asm/processor.h>
-
-#undef DEBUG
-#ifdef DEBUG
-#define DEBUGF(x...) printf(x)
-#else
-#define DEBUGF(x...)
-#endif /* DEBUG */
-
-#define BOOT_SMALL_FLASH 32 /* 00100000 */
-#define FLASH_ONBD_N 2 /* 00000010 */
-#define FLASH_SRAM_SEL 1 /* 00000001 */
-
-#define BOOT_SMALL_FLASH_VAL 4
-#define FLASH_ONBD_N_VAL 2
-#define FLASH_SRAM_SEL_VAL 1
-
-flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
-
-unsigned long flash_addr_table[512][CFG_MAX_FLASH_BANKS] = {
- {0xfe000000}
-
-};
-
-/*-----------------------------------------------------------------------
- * Functions
- */
-static ulong flash_get_size(vu_long * addr, flash_info_t * info);
-static int write_word(flash_info_t * info, ulong dest, ulong data);
-
-#define ADDR0 0xaaaa
-#define ADDR1 0x5554
-#define FLASH_WORD_SIZE unsigned short
-
-/*-----------------------------------------------------------------------
- */
-
-unsigned long flash_init(void)
-{
- unsigned long total_b = 0;
- unsigned long size_b[CFG_MAX_FLASH_BANKS];
- unsigned short index = 0;
- int i;
-
- DEBUGF("\n");
- DEBUGF("FLASH: Index: %d\n", index);
-
- /* Init: no FLASHes known */
- for (i = 0; i < CFG_MAX_FLASH_BANKS; ++i) {
- flash_info[i].flash_id = FLASH_UNKNOWN;
- flash_info[i].sector_count = -1;
- flash_info[i].size = 0;
-
- /* check whether the address is 0 */
- if (flash_addr_table[index][i] == 0) {
- continue;
- }
-
- /* call flash_get_size() to initialize sector address */
- size_b[i] = flash_get_size((vu_long *)
- flash_addr_table[index][i],
- &flash_info[i]);
- flash_info[i].size = size_b[i];
- if (flash_info[i].flash_id == FLASH_UNKNOWN) {
- printf
- ("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n",
- i, size_b[i], size_b[i] << 20);
- flash_info[i].sector_count = -1;
- flash_info[i].size = 0;
- }
-
- total_b += flash_info[i].size;
- }
-
- /* FLASH protect Monitor */
- flash_protect(FLAG_PROTECT_SET,
- CFG_MONITOR_BASE, 0xFFFFFFFF, &flash_info[0]);
-
- return total_b;
-}
-
-/*-----------------------------------------------------------------------
- */
-void flash_print_info(flash_info_t * info)
-{
- int i;
- int k;
- int size;
- int erased;
- volatile unsigned long *flash;
-
- if (info->flash_id == FLASH_UNKNOWN) {
- printf("missing or unknown FLASH type\n");
- return;
- }
-
- switch (info->flash_id & FLASH_VENDMASK) {
- case FLASH_MAN_AMD:
- printf("AMD ");
- break;
- case FLASH_MAN_FUJ:
- printf("FUJITSU ");
- break;
- case FLASH_MAN_SST:
- printf("SST ");
- break;
- default:
- printf("Unknown Vendor ");
- break;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- case FLASH_AMD016:
- printf("AM29F016D (16 Mbit, uniform sector size)\n");
- break;
- case FLASH_AM040:
- printf("AM29F040 (512 Kbit, uniform sector size)\n");
- break;
- case FLASH_AM400B:
- printf("AM29LV400B (4 Mbit, bottom boot sect)\n");
- break;
- case FLASH_AM400T:
- printf("AM29LV400T (4 Mbit, top boot sector)\n");
- break;
- case FLASH_AM800B:
- printf("AM29LV800B (8 Mbit, bottom boot sect)\n");
- break;
- case FLASH_AM800T:
- printf("AM29LV800T (8 Mbit, top boot sector)\n");
- break;
- case FLASH_AM160B:
- printf("AM29LV160B (16 Mbit, bottom boot sect)\n");
- break;
- case FLASH_AM160T:
- printf("AM29LV160T (16 Mbit, top boot sector)\n");
- break;
- case FLASH_AM320B:
- printf("AM29LV320B (32 Mbit, bottom boot sect)\n");
- break;
- case FLASH_AM320T:
- printf("AM29LV320T (32 Mbit, top boot sector)\n");
- break;
- case FLASH_SST800A:
- printf("SST39LF/VF800 (8 Mbit, uniform sector size)\n");
- break;
- case FLASH_SST160A:
- printf("SST39LF/VF160 (16 Mbit, uniform sector size)\n");
- break;
- default:
- printf("Unknown Chip Type\n");
- break;
- }
-
- 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) {
- /*
- * Check if whole sector is erased
- */
- if (i != (info->sector_count - 1))
- size = info->start[i + 1] - info->start[i];
- else
- size = info->start[0] + info->size - info->start[i];
- erased = 1;
- flash = (volatile unsigned long *)info->start[i];
- size = size >> 2; /* divide by 4 for longword access */
- for (k = 0; k < size; k++) {
- if (*flash++ != 0xffffffff) {
- erased = 0;
- break;
- }
- }
-
- if ((i % 5) == 0)
- printf("\n ");
- printf(" %08lX%s%s",
- info->start[i],
- erased ? " E" : " ", info->protect[i] ? "RO " : " ");
- }
- printf("\n");
- return;
-}
-
-/*-----------------------------------------------------------------------
- */
-
-/*-----------------------------------------------------------------------
- */
-
-/*
- * The following code cannot be run from FLASH!
- */
-static ulong flash_get_size(vu_long * addr, flash_info_t * info)
-{
- short i;
- FLASH_WORD_SIZE value;
- ulong base = (ulong) addr;
- volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *) addr;
-
- DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr);
-
- /* Write auto select command: read Manufacturer ID */
- udelay(10000);
- *(FLASH_WORD_SIZE *) ((int)addr + ADDR0) = (FLASH_WORD_SIZE) 0x00AA;
- udelay(1000);
- *(FLASH_WORD_SIZE *) ((int)addr + ADDR1) = (FLASH_WORD_SIZE) 0x0055;
- udelay(1000);
- *(FLASH_WORD_SIZE *) ((int)addr + ADDR0) = (FLASH_WORD_SIZE) 0x0090;
- udelay(1000);
-
- value = addr2[0];
-
- DEBUGF("FLASH MANUFACT: %x\n", value);
-
- switch (value) {
- case (FLASH_WORD_SIZE) AMD_MANUFACT:
- info->flash_id = FLASH_MAN_AMD;
- break;
- case (FLASH_WORD_SIZE) FUJ_MANUFACT:
- info->flash_id = FLASH_MAN_FUJ;
- break;
- case (FLASH_WORD_SIZE) SST_MANUFACT:
- info->flash_id = FLASH_MAN_SST;
- break;
- case (FLASH_WORD_SIZE) STM_MANUFACT:
- info->flash_id = FLASH_MAN_STM;
- break;
- default:
- info->flash_id = FLASH_UNKNOWN;
- info->sector_count = 0;
- info->size = 0;
- return (0); /* no or unknown flash */
- }
-
-#ifdef CONFIG_ADCIOP
- value = addr2[0]; /* device ID */
- debug("\ndev_code=%x\n", value);
-#else
- value = addr2[1]; /* device ID */
-#endif
-
- DEBUGF("\nFLASH DEVICEID: %x\n", value);
-
- info->flash_id = 0;
- info->sector_count = CFG_MAX_FLASH_SECT;
- info->size = 0x02000000;
-
- /* set up sector start address table */
- for (i = 0; i < info->sector_count; i++) {
- info->start[i] = (int)base + (i * 0x00020000);
- info->protect[i] = 0;
- }
-
- *(FLASH_WORD_SIZE *) ((int)addr) = (FLASH_WORD_SIZE) 0x00F0; /* reset bank */
-
- return (info->size);
-}
-
-int wait_for_DQ7(flash_info_t * info, int sect)
-{
- ulong start, now, last;
- volatile FLASH_WORD_SIZE *addr =
- (FLASH_WORD_SIZE *) (info->start[sect]);
-
- start = get_timer(0);
- last = start;
- while ((addr[0] & (FLASH_WORD_SIZE) 0x00800080) !=
- (FLASH_WORD_SIZE) 0x00800080) {
- if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
- printf("Timeout\n");
- return -1;
- }
- /* show that we're waiting */
- if ((now - last) > 1000) { /* every second */
- putc('.');
- last = now;
- }
- }
- return 0;
-}
-
-/*-----------------------------------------------------------------------
- */
-
-int flash_erase(flash_info_t * info, int s_first, int s_last)
-{
- volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *) (info->start[0]);
- volatile FLASH_WORD_SIZE *addr2;
- int flag, prot, sect, l_sect;
-
- if ((s_first < 0) || (s_first > s_last)) {
- if (info->flash_id == FLASH_UNKNOWN) {
- printf("- missing\n");
- } else {
- printf("- no sectors to erase\n");
- }
- return 1;
- }
-
- if (info->flash_id == FLASH_UNKNOWN) {
- printf("Can't erase unknown flash type - aborted\n");
- return 1;
- }
-
- 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");
- }
-
- l_sect = -1;
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- /* Start erase on unprotected sectors */
- for (sect = s_first; sect <= s_last; sect++) {
- if (info->protect[sect] == 0) { /* not protected */
- addr2 = (FLASH_WORD_SIZE *) (info->start[sect]);
- printf("Erasing sector %p\n", addr2);
- *(FLASH_WORD_SIZE *) ((int)addr + ADDR0) =
- (FLASH_WORD_SIZE) 0x00AA;
- asm("sync");
- asm("isync");
- *(FLASH_WORD_SIZE *) ((int)addr + ADDR1) =
- (FLASH_WORD_SIZE) 0x0055;
- asm("sync");
- asm("isync");
- *(FLASH_WORD_SIZE *) ((int)addr + ADDR0) =
- (FLASH_WORD_SIZE) 0x0080;
- asm("sync");
- asm("isync");
- *(FLASH_WORD_SIZE *) ((int)addr + ADDR0) =
- (FLASH_WORD_SIZE) 0x00AA;
- asm("sync");
- asm("isync");
- *(FLASH_WORD_SIZE *) ((int)addr + ADDR1) =
- (FLASH_WORD_SIZE) 0x0055;
- asm("sync");
- asm("isync");
- addr2[0] = (FLASH_WORD_SIZE) 0x00300030; /* sector erase */
- asm("sync");
- asm("isync");
-
- l_sect = sect;
- /*
- * Wait for each sector to complete, it's more
- * reliable. According to AMD Spec, you must
- * issue all erase commands within a specified
- * timeout. This has been seen to fail, especially
- * if printf()s are included (for debug)!!
- */
- wait_for_DQ7(info, sect);
- }
- }
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* wait at least 80us - let's wait 1 ms */
- udelay(1000);
-
-#if 0
- /*
- * We wait for the last triggered sector
- */
- if (l_sect < 0)
- goto DONE;
- wait_for_DQ7(info, l_sect);
-
- DONE:
-#endif
- /* reset to read mode */
- addr = (FLASH_WORD_SIZE *) info->start[0];
- addr[0] = (FLASH_WORD_SIZE) 0x00F000F0; /* reset bank */
-
- printf(" done\n");
- return 0;
-}
-
-/*-----------------------------------------------------------------------
- * Copy memory to flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-int write_buff(flash_info_t * info, uchar * src, ulong addr, ulong cnt)
-{
- ulong cp, wp, data;
- int i, l, rc;
- ulong status_value = 0;
-
- wp = (addr & ~3); /* get lower word aligned address */
-
- /*
- * handle unaligned start bytes
- */
- if ((l = addr - wp) != 0) {
- data = 0;
- for (i = 0, cp = wp; i < l; ++i, ++cp) {
- data = (data << 8) | (*(uchar *) cp);
- }
- for (; i < 4 && cnt > 0; ++i) {
- data = (data << 8) | *src++;
- --cnt;
- ++cp;
- }
- for (; cnt == 0 && i < 4; ++i, ++cp) {
- data = (data << 8) | (*(uchar *) cp);
- }
-
- if ((rc = write_word(info, wp, data)) != 0) {
- return (rc);
- }
- wp += 4;
- }
-
- /*
- * handle word aligned part
- */
- while (cnt >= 4) {
-
- /*print status if needed */
- if ((wp >= (status_value + 0x20000))
- && (status_value < 0xFFFE0000)) {
- status_value = wp;
- printf("writing to sector 0x%X\n", status_value);
- }
-
- data = 0;
- for (i = 0; i < 4; ++i) {
- data = (data << 8) | *src++;
- }
- if ((rc = write_word(info, wp, data)) != 0) {
- return (rc);
- }
- wp += 4;
- cnt -= 4;
- }
-
- if (cnt == 0) {
- return (0);
- }
-
- /*
- * handle unaligned tail bytes
- */
- data = 0;
- for (i = 0, cp = wp; i < 4 && cnt > 0; ++i, ++cp) {
- data = (data << 8) | *src++;
- --cnt;
- }
- for (; i < 4; ++i, ++cp) {
- data = (data << 8) | (*(uchar *) cp);
- }
-
- return (write_word(info, wp, data));
-}
-
-/*-----------------------------------------------------------------------
- * Write a word to Flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-static int write_word(flash_info_t * info, ulong dest, ulong data)
-{
- vu_long *addr2 = (vu_long *) (info->start[0]);
- volatile FLASH_WORD_SIZE *dest2 = (FLASH_WORD_SIZE *) dest;
- volatile FLASH_WORD_SIZE *data2 = (FLASH_WORD_SIZE *) & data;
- ulong start;
- int i;
-
- /* Check if Flash is (sufficiently) erased */
- if ((*((volatile FLASH_WORD_SIZE *)dest) &
- (FLASH_WORD_SIZE) data) != (FLASH_WORD_SIZE) data) {
- return (2);
- }
-
- for (i = 0; i < 4 / sizeof(FLASH_WORD_SIZE); i++) {
- int flag;
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- *(FLASH_WORD_SIZE *) ((int)addr2 + ADDR0) =
- (FLASH_WORD_SIZE) 0x00AA;
- asm("sync");
- asm("isync");
- *(FLASH_WORD_SIZE *) ((int)addr2 + ADDR1) =
- (FLASH_WORD_SIZE) 0x0055;
- asm("sync");
- asm("isync");
- *(FLASH_WORD_SIZE *) ((int)addr2 + ADDR0) =
- (FLASH_WORD_SIZE) 0x00A0;
- asm("sync");
- asm("isync");
-
- dest2[i] = data2[i];
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* data polling for D7 */
- start = get_timer(0);
- while ((dest2[i] & (FLASH_WORD_SIZE) 0x00800080) !=
- (data2[i] & (FLASH_WORD_SIZE) 0x00800080)) {
-
- if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
- return (1);
- }
- }
- }
-
- return (0);
-}
-
-/*-----------------------------------------------------------------------
- */
generated by cgit (git 2.34.1) at 2024-12-27 05:16:46 +0000