summaryrefslogtreecommitdiff
path: root/board/ssv/common/flash.c
diff options
context:
space:
mode:
Diffstat (limited to 'board/ssv/common/flash.c')
-rw-r--r--board/ssv/common/flash.c207
1 files changed, 0 insertions, 207 deletions
diff --git a/board/ssv/common/flash.c b/board/ssv/common/flash.c
deleted file mode 100644
index 70bf9d6..0000000
--- a/board/ssv/common/flash.c
+++ /dev/null
@@ -1,207 +0,0 @@
-/*
- * (C) Copyright 2000-2004
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * (C) Copyright 2004, Li-Pro.Net <www.li-pro.net>
- * Stephan Linz <linz@li-pro.net>
- *
- * 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 <watchdog.h>
-#include <nios.h>
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
-
-/*--------------------------------------------------------------------*/
-void flash_print_info (flash_info_t * info)
-{
- int i, k;
- unsigned long size;
- int erased;
- volatile unsigned char *flash;
-
- 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 char *) info->start[i];
- for (k = 0; k < size; k++) {
- if (*flash++ != 0xff) {
- erased = 0;
- break;
- }
- }
-
- /* Print the info */
- if ((i % 5) == 0)
- printf ("\n ");
- printf (" %08lX%s%s", info->start[i], erased ? " E" : " ",
- info->protect[i] ? "RO " : " ");
- }
- printf ("\n");
-}
-
-/*-------------------------------------------------------------------*/
-
-
-int flash_erase (flash_info_t * info, int s_first, int s_last)
-{
- volatile CONFIG_SYS_FLASH_WORD_SIZE *addr = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[0]);
- volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2;
- int prot, sect, wait;
- unsigned oldpri;
- ulong start;
-
- /* Some sanity checking */
- if ((s_first < 0) || (s_first > s_last)) {
- printf ("- no sectors to erase\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");
- }
-
-#ifdef DEBUG
- for (sect = s_first; sect <= s_last; sect++) {
- printf("- Erase: Sect: %i @ 0x%08x\n", sect, info->start[sect]);
- }
-#endif
-
- /* NOTE: disabling interrupts on Nios can be very bad since it
- * also disables the LO_LIMIT exception. It's better here to
- * set the interrupt priority to 3 & restore it when we're done.
- */
- oldpri = ipri (3);
-
- /* It's ok to erase multiple sectors provided we don't delay more
- * than 50 usec between cmds ... at which point the erase time-out
- * occurs. So don't go and put printf() calls in the loop ... it
- * won't be very helpful ;-)
- */
- for (sect = s_first; sect <= s_last; sect++) {
- if (info->protect[sect] == 0) { /* not protected */
- addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]);
- *addr = 0xf0;
- *(addr+0xAAA/2) = 0xaa;
- *(addr+0x554/2) = 0x55;
- *(addr+0xAAA/2) = 0x80;
- *(addr+0xAAA/2) = 0xaa;
- *(addr+0x554/2) = 0x55;
- *addr2 = 0x30;
- /* Now just wait for 0xffff & provide some user
- * feedback while we wait. Here we have to grant
- * timer interrupts. Otherwise get_timer() can't
- * work right. */
- ipri(oldpri);
- start = get_timer (0);
- while (*addr2 != 0xffff) {
- for (wait = 8; wait; wait--) {
- udelay (125 * 1000);
- }
- putc ('.');
- if (get_timer (start) > CONFIG_SYS_FLASH_ERASE_TOUT) {
- printf ("timeout\n");
- return 1;
- }
- }
- oldpri = ipri (3); /* disallow non important irqs again */
- }
- }
-
- printf ("\n");
- *addr = 0xf0;
-
- /* Restore interrupt priority */
- ipri (oldpri);
-
- return 0;
-}
-
-/*-----------------------------------------------------------------------
- * Copy memory to flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-
-int write_buff (flash_info_t * info, uchar * srcbuffer, ulong addr, ulong cnt)
-{
-
- volatile CONFIG_SYS_FLASH_WORD_SIZE *cmd = (vu_short *) info->start[0];
- volatile CONFIG_SYS_FLASH_WORD_SIZE *dst = (vu_short *) addr;
- CONFIG_SYS_FLASH_WORD_SIZE *src = (void *) srcbuffer;
- CONFIG_SYS_FLASH_WORD_SIZE b;
- unsigned oldpri;
- ulong start;
-
- cnt /= sizeof(CONFIG_SYS_FLASH_WORD_SIZE);
- while (cnt) {
- /* Check for sufficient erase */
- b = *src;
- if ((*dst & b) != b) {
- printf ("%02x : %02x\n", *dst, b);
- return (2);
- }
-
- /* Disable interrupts other than window underflow
- * (interrupt priority 2)
- */
- oldpri = ipri (3);
- *(cmd+0xAAA/2) = 0xaa;
- *(cmd+0x554/2) = 0x55;
- *(cmd+0xAAA/2) = 0xa0;
- ipri (oldpri);
- *dst = b;
-
- /* Verify write */
- start = get_timer (0);
- while (*dst != b) {
- if (get_timer (start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- *cmd = 0xf0;
- return 1;
- }
- }
- dst++;
- src++;
- cnt--;
- }
-
- *cmd = 0xf0;
- return (0);
-}