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-rw-r--r--board/impa7/flash.c359
1 files changed, 0 insertions, 359 deletions
diff --git a/board/impa7/flash.c b/board/impa7/flash.c
deleted file mode 100644
index 6eae428a9..000000000
--- a/board/impa7/flash.c
+++ /dev/null
@@ -1,359 +0,0 @@
-/*
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Marius Groeger <mgroeger@sysgo.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>
-
-#define FLASH_BANK_SIZE 0x800000
-#define MAIN_SECT_SIZE 0x20000
-#define PARAM_SECT_SIZE 0x4000
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
-
-
-/*-----------------------------------------------------------------------
- */
-
-ulong flash_init (void)
-{
- int i, j;
- ulong size = 0;
-
- for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) {
- ulong flashbase = 0;
-
- flash_info[i].flash_id =
- (INTEL_MANUFACT & FLASH_VENDMASK) |
- (INTEL_ID_28F320B3T & FLASH_TYPEMASK);
- flash_info[i].size = FLASH_BANK_SIZE;
- flash_info[i].sector_count = CONFIG_SYS_MAX_FLASH_SECT;
- memset (flash_info[i].protect, 0, CONFIG_SYS_MAX_FLASH_SECT);
- if (i == 0)
- flashbase = PHYS_FLASH_1;
- else if (i == 1)
- flashbase = PHYS_FLASH_2;
- else
- panic ("configured too many flash banks!\n");
- for (j = 0; j < flash_info[i].sector_count; j++) {
- if (j <= 7) {
- flash_info[i].start[j] =
- flashbase + j * PARAM_SECT_SIZE;
- } else {
- flash_info[i].start[j] =
- flashbase + (j - 7) * MAIN_SECT_SIZE;
- }
- }
- 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;
-}
-
-/*-----------------------------------------------------------------------
- */
-void flash_print_info (flash_info_t * info)
-{
- int i;
-
- switch (info->flash_id & FLASH_VENDMASK) {
- case (INTEL_MANUFACT & FLASH_VENDMASK):
- printf ("Intel: ");
- break;
- default:
- printf ("Unknown Vendor ");
- break;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- case (INTEL_ID_28F320B3T & FLASH_TYPEMASK):
- printf ("28F320F3B (16Mbit)\n");
- break;
- default:
- printf ("Unknown Chip Type\n");
- goto Done;
- 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");
-
- Done:;
-}
-
-/*-----------------------------------------------------------------------
- */
-
-int flash_erase (flash_info_t * info, int s_first, int s_last)
-{
- int flag, prot, sect;
- int rc = ERR_OK;
- ulong start;
-
- if (info->flash_id == FLASH_UNKNOWN)
- return ERR_UNKNOWN_FLASH_TYPE;
-
- if ((s_first < 0) || (s_first > s_last)) {
- return ERR_INVAL;
- }
-
- if ((info->flash_id & FLASH_VENDMASK) !=
- (INTEL_MANUFACT & FLASH_VENDMASK)) {
- return ERR_UNKNOWN_FLASH_VENDOR;
- }
-
- prot = 0;
- for (sect = s_first; sect <= s_last; ++sect) {
- if (info->protect[sect]) {
- prot++;
- }
- }
- if (prot)
- return ERR_PROTECTED;
-
- /*
- * Disable interrupts which might cause a timeout
- * here. Remember that our exception vectors are
- * at address 0 in the flash, and we don't want a
- * (ticker) exception to happen while the flash
- * chip is in programming mode.
- */
- flag = disable_interrupts ();
-
- /* Start erase on unprotected sectors */
- for (sect = s_first; sect <= s_last && !ctrlc (); sect++) {
-
- printf ("Erasing sector %2d ... ", sect);
-
- /* arm simple, non interrupt dependent timer */
- start = get_timer(0);
-
- if (info->protect[sect] == 0) { /* not protected */
- vu_long *addr = (vu_long *) (info->start[sect]);
-
- *addr = 0x00200020; /* erase setup */
- *addr = 0x00D000D0; /* erase confirm */
-
- while ((*addr & 0x00800080) != 0x00800080) {
- if (get_timer(start) >
- CONFIG_SYS_FLASH_ERASE_TOUT) {
- *addr = 0x00B000B0; /* suspend erase */
- *addr = 0x00FF00FF; /* reset to read mode */
- rc = ERR_TIMOUT;
- goto outahere;
- }
- }
-
- *addr = 0x00FF00FF; /* reset to read mode */
- }
- printf ("ok.\n");
- }
- if (ctrlc ())
- printf ("User Interrupt!\n");
-
- outahere:
-
- /* allow flash to settle - wait 10 ms */
- udelay_masked (10000);
-
- if (flag)
- enable_interrupts ();
-
- return rc;
-}
-
-/*-----------------------------------------------------------------------
- * Copy memory to flash
- */
-
-static int write_word (flash_info_t * info, ulong dest, ulong data)
-{
- vu_long *addr = (vu_long *) dest;
- ulong barf;
- int rc = ERR_OK;
- int flag;
- ulong start;
-
- /* Check if Flash is (sufficiently) erased
- */
- if ((*addr & data) != data)
- return ERR_NOT_ERASED;
-
- /*
- * Disable interrupts which might cause a timeout
- * here. Remember that our exception vectors are
- * at address 0 in the flash, and we don't want a
- * (ticker) exception to happen while the flash
- * chip is in programming mode.
- */
- flag = disable_interrupts ();
-
- /* clear status register command */
- *addr = 0x00500050;
-
- /* program set-up command */
- *addr = 0x00400040;
-
- /* latch address/data */
- *addr = data;
-
- /* arm simple, non interrupt dependent timer */
- start = get_timer(0);
-
- /* read status register command */
- *addr = 0x00700070;
-
- /* wait while polling the status register */
- while ((*addr & 0x00800080) != 0x00800080) {
- if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- rc = ERR_TIMOUT;
- /* suspend program command */
- *addr = 0x00B000B0;
- goto outahere;
- }
-
- if (*addr & 0x003A003A) { /* check for error */
- barf = *addr;
- if (barf & 0x003A0000) {
- barf >>= 16;
- } else {
- barf &= 0x0000003A;
- }
- printf ("\nFlash write error %02lx at address %08lx\n", barf, (unsigned long) dest);
- if (barf & 0x0002) {
- printf ("Block locked, not erased.\n");
- rc = ERR_NOT_ERASED;
- goto outahere;
- }
- if (barf & 0x0010) {
- printf ("Programming error.\n");
- rc = ERR_PROG_ERROR;
- goto outahere;
- }
- if (barf & 0x0008) {
- printf ("Vpp Low error.\n");
- rc = ERR_PROG_ERROR;
- goto outahere;
- }
- rc = ERR_PROG_ERROR;
- goto outahere;
- }
- }
-
-
- outahere:
- /* read array command */
- *addr = 0x00FF00FF;
-
- if (flag)
- enable_interrupts ();
-
- return rc;
-}
-
-/*-----------------------------------------------------------------------
- * Copy memory to flash.
- */
-
-int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
-{
- ulong cp, wp, data;
- int l;
- int i, 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 << 24);
- }
- for (; i < 4 && cnt > 0; ++i) {
- data = (data >> 8) | (*src++ << 24);
- --cnt;
- ++cp;
- }
- for (; cnt == 0 && i < 4; ++i, ++cp) {
- data = (data >> 8) | (*(uchar *) cp << 24);
- }
-
- if ((rc = write_word (info, wp, data)) != 0) {
- return (rc);
- }
- wp += 4;
- }
-
- /*
- * handle word aligned part
- */
- while (cnt >= 4) {
- data = *((vu_long *) src);
- if ((rc = write_word (info, wp, data)) != 0) {
- return (rc);
- }
- src += 4;
- wp += 4;
- cnt -= 4;
- }
-
- if (cnt == 0) {
- return ERR_OK;
- }
-
- /*
- * handle unaligned tail bytes
- */
- data = 0;
- for (i = 0, cp = wp; i < 4 && cnt > 0; ++i, ++cp) {
- data = (data >> 8) | (*src++ << 24);
- --cnt;
- }
- for (; i < 4; ++i, ++cp) {
- data = (data >> 8) | (*(uchar *) cp << 24);
- }
-
- return write_word (info, wp, data);
-}
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