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-rw-r--r--board/etx094/flash.c687
1 files changed, 0 insertions, 687 deletions
diff --git a/board/etx094/flash.c b/board/etx094/flash.c
deleted file mode 100644
index 0958e73d6..000000000
--- a/board/etx094/flash.c
+++ /dev/null
@@ -1,687 +0,0 @@
-/*
- * (C) Copyright 2000
- * 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 <mpc8xx.h>
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
-
-/*-----------------------------------------------------------------------
- * 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);
-static void flash_get_offsets(ulong base, flash_info_t *info);
-
-/*-----------------------------------------------------------------------
- */
-
-unsigned long flash_init(void)
-{
- volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
- volatile memctl8xx_t *memctl = &immap->im_memctl;
- unsigned long size_b0;
- int i;
-
- /* Init: no FLASHes known */
- for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i)
- flash_info[i].flash_id = FLASH_UNKNOWN;
-
- /* Static FLASH Bank configuration here - FIXME XXX */
-
- size_b0 = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]);
-
- if (flash_info[0].flash_id == FLASH_UNKNOWN) {
- printf("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
- size_b0, size_b0<<20);
- }
-
- /* Remap FLASH according to real size */
- memctl->memc_or0 = CONFIG_SYS_OR_TIMING_FLASH | (-size_b0 & 0xFFFF8000);
-#ifdef CONFIG_FLASH_16BIT
- memctl->memc_br0 = (CONFIG_SYS_FLASH_BASE & BR_BA_MSK) |
- BR_MS_GPCM | BR_V | BR_PS_16; /* 16 Bit data port */
-#else
- memctl->memc_br0 = (CONFIG_SYS_FLASH_BASE & BR_BA_MSK) |
- BR_MS_GPCM | BR_V;
-#endif
-
- /* Re-do sizing to get full correct info */
- size_b0 = flash_get_size((vu_long *)CONFIG_SYS_FLASH_BASE,
- &flash_info[0]);
-
- flash_get_offsets(CONFIG_SYS_FLASH_BASE, &flash_info[0]);
-
-#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE
- /* monitor protection ON by default */
- flash_protect(FLAG_PROTECT_SET,
- CONFIG_SYS_MONITOR_BASE,
- CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1,
- &flash_info[0]);
-#endif
-
- memctl->memc_br1 = 0; /* invalidate bank 1 */
-
- flash_info[0].size = size_b0;
-
- return size_b0;
-}
-
-/*-----------------------------------------------------------------------
- */
-static void flash_get_offsets(ulong base, flash_info_t *info)
-{
- int i;
-
- if (info->flash_id == FLASH_UNKNOWN)
- return;
-
- if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) {
- for (i = 0; i < info->sector_count; i++)
- info->start[i] = base + (i * 0x00002000);
-
- return;
- }
-
- /* set up sector start address table */
- if (info->flash_id & FLASH_BTYPE) {
- /* set sector offsets for bottom boot block type */
-#ifdef CONFIG_FLASH_16BIT
- info->start[0] = base + 0x00000000;
- info->start[1] = base + 0x00004000;
- info->start[2] = base + 0x00006000;
- info->start[3] = base + 0x00008000;
- for (i = 4; i < info->sector_count; i++)
- info->start[i] = base + (i * 0x00010000) - 0x00030000;
-#else
- info->start[0] = base + 0x00000000;
- info->start[1] = base + 0x00008000;
- info->start[2] = base + 0x0000C000;
- info->start[3] = base + 0x00010000;
- for (i = 4; i < info->sector_count; i++)
- info->start[i] = base + (i * 0x00020000) - 0x00060000;
-#endif
- } else {
- /* set sector offsets for top boot block type */
- i = info->sector_count - 1;
- info->start[i--] = base + info->size - 0x00008000;
- info->start[i--] = base + info->size - 0x0000C000;
- info->start[i--] = base + info->size - 0x00010000;
- for (; i >= 0; i--)
- info->start[i] = base + i * 0x00020000;
- }
-}
-
-/*-----------------------------------------------------------------------
- */
-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 & FLASH_VENDMASK) {
- case FLASH_MAN_AMD:
- printf("AMD ");
- break;
- case FLASH_MAN_FUJ:
- printf("FUJITSU ");
- break;
- case FLASH_MAN_SST:
- printf("SST ");
- break;
- case FLASH_MAN_STM:
- printf("STM ");
- break;
- default:
- printf("Unknown Vendor ");
- break;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- 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_SST200A:
- printf("39xF200A (2M = 128K x 16)\n");
- break;
- case FLASH_SST400A:
- printf("39xF400A (4M = 256K x 16)\n");
- break;
- case FLASH_SST800A:
- printf("39xF800A (8M = 512K x 16)\n");
- break;
- case FLASH_STM800AB:
- printf("M29W800AB (8M = 512K x 16)\n");
- break;
- default:
- printf("Unknown Chip Type\n");
- break;
- }
-
- printf(" Size: %ld MB in %d Sectors\n",
- info->size >> 20, info->sector_count);
-
- printf(" Sector Start Addresses:");
- 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;
-}
-
-/*
- * The following code cannot be run from FLASH!
- */
-
-static ulong flash_get_size(vu_long *addr, flash_info_t *info)
-{
- short i;
- ulong value;
- ulong base = (ulong)addr;
-
- /* Write auto select command: read Manufacturer ID */
-#ifdef CONFIG_FLASH_16BIT
- vu_short *s_addr = (vu_short *)addr;
- s_addr[0x5555] = 0x00AA;
- s_addr[0x2AAA] = 0x0055;
- s_addr[0x5555] = 0x0090;
- value = s_addr[0];
- value = value|(value<<16);
-#else
- addr[0x5555] = 0x00AA00AA;
- addr[0x2AAA] = 0x00550055;
- addr[0x5555] = 0x00900090;
- value = addr[0];
-#endif
-
- switch (value) {
- case AMD_MANUFACT:
- info->flash_id = FLASH_MAN_AMD;
- break;
- case FUJ_MANUFACT:
- info->flash_id = FLASH_MAN_FUJ;
- break;
- case SST_MANUFACT:
- info->flash_id = FLASH_MAN_SST;
- break;
- case 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_FLASH_16BIT
- value = s_addr[1];
- value = value|(value<<16);
-#else
- value = addr[1]; /* device ID */
-#endif
-
- switch (value) {
- case AMD_ID_LV400T:
- info->flash_id += FLASH_AM400T;
- info->sector_count = 11;
- info->size = 0x00100000;
- break; /* => 1 MB */
-
- case AMD_ID_LV400B:
- info->flash_id += FLASH_AM400B;
- info->sector_count = 11;
- info->size = 0x00100000;
- break; /* => 1 MB */
-
- case AMD_ID_LV800T:
- info->flash_id += FLASH_AM800T;
- info->sector_count = 19;
- info->size = 0x00200000;
- break; /* => 2 MB */
-
- case AMD_ID_LV800B:
- info->flash_id += FLASH_AM800B;
-#ifdef CONFIG_FLASH_16BIT
- info->sector_count = 19;
- info->size = 0x00100000; /* => 1 MB */
-#else
- info->sector_count = 19;
- info->size = 0x00200000; /* => 2 MB */
-#endif
- break;
-
- case AMD_ID_LV160T:
- info->flash_id += FLASH_AM160T;
- info->sector_count = 35;
- info->size = 0x00400000;
- break; /* => 4 MB */
-
- case AMD_ID_LV160B:
- info->flash_id += FLASH_AM160B;
-#ifdef CONFIG_FLASH_16BIT
- info->sector_count = 35;
- info->size = 0x00200000; /* => 2 MB */
-#else
- info->sector_count = 35;
- info->size = 0x00400000; /* => 4 MB */
-#endif
-
- break;
- case SST_ID_xF200A:
- info->flash_id += FLASH_SST200A;
- info->sector_count = 64; /* 39xF200A (2M = 128K x 16) */
- info->size = 0x00080000;
- break;
- case SST_ID_xF400A:
- info->flash_id += FLASH_SST400A;
- info->sector_count = 128; /* 39xF400A (4M = 256K x 16) */
- info->size = 0x00100000;
- break;
- case SST_ID_xF800A:
- info->flash_id += FLASH_SST800A;
- info->sector_count = 256; /* 39xF800A (8M = 512K x 16) */
- info->size = 0x00200000;
- break; /* => 2 MB */
- case STM_ID_x800AB:
- info->flash_id += FLASH_STM800AB;
- info->sector_count = 19;
- info->size = 0x00200000;
- break; /* => 2 MB */
- default:
- info->flash_id = FLASH_UNKNOWN;
- return 0; /* => no or unknown flash */
-
- }
-
- if (info->sector_count > CONFIG_SYS_MAX_FLASH_SECT) {
- printf("** ERROR: sector count %d > max (%d) **\n",
- info->sector_count, CONFIG_SYS_MAX_FLASH_SECT);
- info->sector_count = CONFIG_SYS_MAX_FLASH_SECT;
- }
-
- if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) {
- for (i = 0; i < info->sector_count; i++)
- info->start[i] = base + (i * 0x00002000);
- } else { /* AMD and Fujitsu types */
- /* set up sector start address table */
- if (info->flash_id & FLASH_BTYPE) {
- /* set sector offsets for bottom boot block type */
-#ifdef CONFIG_FLASH_16BIT
-
- info->start[0] = base + 0x00000000;
- info->start[1] = base + 0x00004000;
- info->start[2] = base + 0x00006000;
- info->start[3] = base + 0x00008000;
- for (i = 4; i < info->sector_count; i++)
- info->start[i] = base +
- (i * 0x00010000) - 0x00030000;
-#else
- info->start[0] = base + 0x00000000;
- info->start[1] = base + 0x00008000;
- info->start[2] = base + 0x0000C000;
- info->start[3] = base + 0x00010000;
- for (i = 4; i < info->sector_count; i++)
- info->start[i] = base +
- (i * 0x00020000) - 0x00060000;
-#endif
- } else {
- /* set sector offsets for top boot block type */
- i = info->sector_count - 1;
- info->start[i--] = base + info->size - 0x00008000;
- info->start[i--] = base + info->size - 0x0000C000;
- info->start[i--] = base + info->size - 0x00010000;
- for (; i >= 0; i--)
- info->start[i] = base + i * 0x00020000;
- }
-
- /* check for protected sectors */
- for (i = 0; i < info->sector_count; i++) {
- /*
- * read sector protection at sector address:
- * (A7 .. A0) = 0x02
- * D0 = 1 if protected
- */
-#ifdef CONFIG_FLASH_16BIT
- s_addr = (volatile unsigned short *)(info->start[i]);
- info->protect[i] = s_addr[2] & 1;
-#else
- addr = (volatile unsigned long *)(info->start[i]);
- info->protect[i] = addr[2] & 1;
-#endif
- }
- }
-
- /*
- * Prevent writes to uninitialized FLASH.
- */
- if (info->flash_id != FLASH_UNKNOWN) {
-#ifdef CONFIG_FLASH_16BIT
- s_addr = (volatile unsigned short *)(info->start[0]);
- *s_addr = 0x00F0; /* reset bank */
-#else
- addr = (volatile unsigned long *)info->start[0];
- *addr = 0x00F000F0; /* reset bank */
-#endif
-
- }
- return info->size;
-}
-
-int flash_erase(flash_info_t *info, int s_first, int s_last)
-{
- vu_long *addr = (vu_long *)(info->start[0]);
- int flag, prot, sect;
- ulong start, now, last;
-#ifdef CONFIG_FLASH_16BIT
- vu_short *s_addr = (vu_short *)addr;
-#endif
-
- 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;
- }
-/*#ifndef CONFIG_FLASH_16BIT
- ulong type;
- type = (info->flash_id & FLASH_VENDMASK);
- if ((type != FLASH_MAN_SST) && (type != FLASH_MAN_STM)) {
- printf ("Can't erase unknown flash type %08lx - aborted\n",
- info->flash_id);
- return;
- }
-#endif*/
- 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");
- }
-
- start = get_timer(0);
- last = start;
- /* Start erase on unprotected sectors */
- for (sect = s_first; sect <= s_last; sect++) {
- if (info->protect[sect] == 0) { /* not protected */
-#ifdef CONFIG_FLASH_16BIT
- vu_short *s_sect_addr = (vu_short *)(info->start[sect]);
-#else
- vu_long *sect_addr = (vu_long *)(info->start[sect]);
-#endif
- /* Disable interrupts which might cause a timeout */
- flag = disable_interrupts();
-
-#ifdef CONFIG_FLASH_16BIT
-
- /*printf("\ns_sect_addr=%x",s_sect_addr);*/
- s_addr[0x5555] = 0x00AA;
- s_addr[0x2AAA] = 0x0055;
- s_addr[0x5555] = 0x0080;
- s_addr[0x5555] = 0x00AA;
- s_addr[0x2AAA] = 0x0055;
- s_sect_addr[0] = 0x0030;
-#else
- addr[0x5555] = 0x00AA00AA;
- addr[0x2AAA] = 0x00550055;
- addr[0x5555] = 0x00800080;
- addr[0x5555] = 0x00AA00AA;
- addr[0x2AAA] = 0x00550055;
- sect_addr[0] = 0x00300030;
-#endif
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* wait at least 80us - let's wait 1 ms */
- udelay(1000);
-
-#ifdef CONFIG_FLASH_16BIT
- while ((s_sect_addr[0] & 0x0080) != 0x0080) {
-#else
- while ((sect_addr[0] & 0x00800080) != 0x00800080) {
-#endif
- now = get_timer(start);
- if (now > CONFIG_SYS_FLASH_ERASE_TOUT) {
- printf("Timeout\n");
- return 1;
- }
- /* show every second that we're waiting */
- if ((now - last) > 1000) {
- putc('.');
- last = now;
- }
- }
- }
- }
-
- /* reset to read mode */
- addr = (volatile unsigned long *)info->start[0];
-#ifdef CONFIG_FLASH_16BIT
- s_addr[0] = 0x00F0; /* reset bank */
-#else
- addr[0] = 0x00F000F0; /* reset bank */
-#endif
-
- printf(" done\n");
- return 0;
-}
-
-/*-----------------------------------------------------------------------
- * Copy memory to flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- * 4 - Flash not identified
- */
-
-int write_buff(flash_info_t *info, uchar *src, ulong addr, ulong cnt)
-{
- ulong cp, wp, data;
- int i, l, rc;
-
- if (info->flash_id == FLASH_UNKNOWN)
- return 4;
-
- wp = (addr & ~3); /* get lower word aligned address */
-
- /*
- * handle unaligned start bytes
- */
- l = addr - wp;
-
- if (l != 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);
-
- rc = write_word(info, wp, data);
-
- if (rc != 0)
- return rc;
-
- wp += 4;
- }
-
- /*
- * handle word aligned part
- */
- while (cnt >= 4) {
- data = 0;
- for (i = 0; i < 4; ++i)
- data = (data << 8) | *src++;
-
- rc = write_word(info, wp, data);
- if (rc != 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 *addr = (vu_long *)(info->start[0]);
-
-#ifdef CONFIG_FLASH_16BIT
- vu_short high_data;
- vu_short low_data;
- vu_short *s_addr = (vu_short *)addr;
-#endif
- ulong start;
- int flag;
-
- /* Check if Flash is (sufficiently) erased */
- if ((*((vu_long *)dest) & data) != data)
- return 2;
-
-#ifdef CONFIG_FLASH_16BIT
- /* Write the 16 higher-bits */
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- high_data = ((data>>16) & 0x0000ffff);
-
- s_addr[0x5555] = 0x00AA;
- s_addr[0x2AAA] = 0x0055;
- s_addr[0x5555] = 0x00A0;
-
- *((vu_short *)dest) = high_data;
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* data polling for D7 */
- start = get_timer(0);
- while ((*((vu_short *)dest) & 0x0080) != (high_data & 0x0080)) {
- if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT)
- return 1;
- }
-
- /* Write the 16 lower-bits */
-#endif
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-#ifdef CONFIG_FLASH_16BIT
- dest += 0x2;
- low_data = (data & 0x0000ffff);
-
- s_addr[0x5555] = 0x00AA;
- s_addr[0x2AAA] = 0x0055;
- s_addr[0x5555] = 0x00A0;
- *((vu_short *)dest) = low_data;
-
-#else
- addr[0x5555] = 0x00AA00AA;
- addr[0x2AAA] = 0x00550055;
- addr[0x5555] = 0x00A000A0;
- *((vu_long *)dest) = data;
-#endif
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* data polling for D7 */
- start = get_timer(0);
-
-#ifdef CONFIG_FLASH_16BIT
- while ((*((vu_short *)dest) & 0x0080) != (low_data & 0x0080)) {
-#else
- while ((*((vu_long *)dest) & 0x00800080) != (data & 0x00800080)) {
-#endif
-
- if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT)
- return 1;
- }
- return 0;
-}
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