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-rw-r--r--board/xsengine/flash.c470
1 files changed, 0 insertions, 470 deletions
diff --git a/board/xsengine/flash.c b/board/xsengine/flash.c
deleted file mode 100644
index 736905a..0000000
--- a/board/xsengine/flash.c
+++ /dev/null
@@ -1,470 +0,0 @@
-/*
- * (C) Copyright 2002
- * Robert Schwebel, Pengutronix, <r.schwebel@pengutronix.de>
- *
- * (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 <linux/byteorder/swab.h>
-
-#define SWAP(x) __swab32(x)
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
-
-/* 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)
-{
- int i;
- ulong size = 0;
-
- for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) {
- switch (i) {
- case 0:
- flash_get_size ((vu_long *) PHYS_FLASH_1, &flash_info[i]);
- flash_get_offsets (PHYS_FLASH_1, &flash_info[i]);
- break;
- case 1:
- flash_get_size ((vu_long *) PHYS_FLASH_2, &flash_info[i]);
- flash_get_offsets (PHYS_FLASH_2, &flash_info[i]);
- break;
- default:
- panic ("configured too many flash banks!\n");
- break;
- }
- size += flash_info[i].size;
- }
-
- /* Protect monitor and environment sectors */
- flash_protect ( FLAG_PROTECT_SET,CONFIG_SYS_FLASH_BASE,CONFIG_SYS_FLASH_BASE + monitor_flash_len - 1,&flash_info[0] );
- flash_protect ( FLAG_PROTECT_SET,CONFIG_ENV_ADDR,CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1, &flash_info[0] );
-
- return size;
-}
-
-/*-----------------------------------------------------------------------
- */
-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_AMD) {
- for (i = 0; i < info->sector_count; i++) {
- info->start[i] = base + (i * PHYS_FLASH_SECT_SIZE);
- info->protect[i] = 0;
- }
- }
-}
-
-/*-----------------------------------------------------------------------
- */
-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;
- default: printf ("Unknown Vendor "); break;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- case FLASH_AMLV640U: printf ("AM29LV640ML (64Mbit, uniform sector size)\n");
- break;
- case FLASH_S29GL064M: printf ("S29GL064M (64Mbit, top boot sector size)\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 */
- addr[0x0555] = 0x00AA00AA;
- addr[0x02AA] = 0x00550055;
- addr[0x0555] = 0x00900090;
-
- value = addr[0];
-
- debug ("Manuf. ID @ 0x%08lx: 0x%08lx\n", (ulong)addr, value);
-
- switch (value) {
- case AMD_MANUFACT:
- debug ("Manufacturer: AMD\n");
- info->flash_id = FLASH_MAN_AMD;
- break;
- case FUJ_MANUFACT:
- debug ("Manufacturer: FUJITSU\n");
- info->flash_id = FLASH_MAN_FUJ;
- break;
- default:
- debug ("Manufacturer: *** unknown ***\n");
- info->flash_id = FLASH_UNKNOWN;
- info->sector_count = 0;
- info->size = 0;
- return (0); /* no or unknown flash */
- }
-
- value = addr[1]; /* device ID */
-
- debug ("Device ID @ 0x%08lx: 0x%08lx\n", (ulong)(&addr[1]), value);
-
- switch (value) {
-
- case AMD_ID_MIRROR:
- debug ("Mirror Bit flash: addr[14] = %08lX addr[15] = %08lX\n",
- addr[14], addr[15]);
- switch(addr[14]) {
- case AMD_ID_LV640U_2:
- if (addr[15] != AMD_ID_LV640U_3) {
- debug ("Chip: AMLV640U -> unknown\n");
- info->flash_id = FLASH_UNKNOWN;
- } else {
- debug ("Chip: AMLV640U\n");
- info->flash_id += FLASH_AMLV640U;
- info->sector_count = 128;
- info->size = 0x01000000;
- }
- break; /* => 16 MB */
- case AMD_ID_GL064MT_2:
- if (addr[15] != AMD_ID_GL064MT_3) {
- debug ("Chip: S29GL064M-R3 -> unknown\n");
- info->flash_id = FLASH_UNKNOWN;
- } else {
- debug ("Chip: S29GL064M-R3\n");
- info->flash_id += FLASH_S29GL064M;
- info->sector_count = 128;
- info->size = 0x01000000;
- }
- break; /* => 16 MB */
- default:
- debug ("Chip: *** unknown ***\n");
- info->flash_id = FLASH_UNKNOWN;
- break;
- }
- break;
-
- default:
- info->flash_id = FLASH_UNKNOWN;
- return (0); /* => no or unknown flash */
- }
-
- /* set up sector start address table */
- switch (value) {
- case AMD_ID_MIRROR:
- switch (info->flash_id & FLASH_TYPEMASK) {
- /* only known types here - no default */
- case FLASH_AMLV128U:
- case FLASH_AMLV640U:
- case FLASH_AMLV320U:
- for (i = 0; i < info->sector_count; i++) {
- info->start[i] = base;
- base += 0x20000;
- }
- break;
- case FLASH_AMLV320B:
- for (i = 0; i < info->sector_count; i++) {
- info->start[i] = base;
- /*
- * The first 8 sectors are 8 kB,
- * all the other ones are 64 kB
- */
- base += (i < 8)
- ? 2 * ( 8 << 10)
- : 2 * (64 << 10);
- }
- break;
- }
- break;
-
- default:
- return (0);
- break;
- }
-
-#if 0
- /* 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 */
- 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) {
- addr = (volatile unsigned long *)info->start[0];
-
- *addr = 0x00F000F0; /* reset bank */
- }
-
- 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, l_sect;
- ulong start, now, last;
-
- debug ("flash_erase: first: %d last: %d\n", s_first, s_last);
-
- 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) ||
- (info->flash_id > FLASH_AMD_COMP)) {
- printf ("Can't erase unknown flash type %08lx - aborted\n",
- info->flash_id);
- 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();
-
- addr[0x0555] = 0x00AA00AA;
- addr[0x02AA] = 0x00550055;
- addr[0x0555] = 0x00800080;
- addr[0x0555] = 0x00AA00AA;
- addr[0x02AA] = 0x00550055;
-
- /* Start erase on unprotected sectors */
- for (sect = s_first; sect<=s_last; sect++) {
- if (info->protect[sect] == 0) { /* not protected */
- addr = (vu_long*)(info->start[sect]);
- addr[0] = 0x00300030;
- l_sect = sect;
- }
- }
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* wait at least 80us - let's wait 1 ms */
- udelay (1000);
-
- /*
- * We wait for the last triggered sector
- */
- if (l_sect < 0)
- goto DONE;
-
- start = get_timer (0);
- last = start;
- addr = (vu_long*)(info->start[l_sect]);
- while ((addr[0] & 0x00800080) != 0x00800080) {
- if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
- printf ("Timeout\n");
- return 1;
- }
- /* show that we're waiting */
- if ((now - last) > 100000) { /* every second */
- putc ('.');
- last = now;
- }
- }
-
-DONE:
- /* reset to read mode */
- addr = (volatile unsigned long *)info->start[0];
- addr[0] = 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;
-
- 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, SWAP(data))) != 0) {
- return (rc);
- }
- wp += 4;
- }
-
- /*
- * handle word aligned part
- */
- while (cnt >= 4) {
- data = 0;
- for (i=0; i<4; ++i) {
- data = (data << 8) | *src++;
- }
- if ((rc = write_word(info, wp, SWAP(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, SWAP(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]);
- ulong start;
- int flag;
-
- /* Check if Flash is (sufficiently) erased */
- if ((*((vu_long *)dest) & data) != data) {
- return (2);
- }
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- addr[0x0555] = 0x00AA00AA;
- addr[0x02AA] = 0x00550055;
- addr[0x0555] = 0x00A000A0;
-
- *((vu_long *)dest) = data;
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* data polling for D7 */
- start = get_timer (0);
- while ((*((vu_long *)dest) & 0x00800080) != (data & 0x00800080)) {
- if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- return (1);
- }
- }
- return (0);
-}
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