|
|
@@ -1,232 +0,0 @@
|
|
|
-/*
|
|
|
- * Copyright (C) 2005-2006 Atmel Corporation
|
|
|
- *
|
|
|
- * 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>
|
|
|
-
|
|
|
-#ifdef CONFIG_ATSTK1000_EXT_FLASH
|
|
|
-#include <asm/arch/cacheflush.h>
|
|
|
-#include <asm/io.h>
|
|
|
-#include <asm/sections.h>
|
|
|
-
|
|
|
-DECLARE_GLOBAL_DATA_PTR;
|
|
|
-
|
|
|
-flash_info_t flash_info[1];
|
|
|
-
|
|
|
-static void flash_identify(uint16_t *flash, flash_info_t *info)
|
|
|
-{
|
|
|
- unsigned long flags;
|
|
|
-
|
|
|
- flags = disable_interrupts();
|
|
|
-
|
|
|
- dcache_flush_unlocked();
|
|
|
-
|
|
|
- writew(0xaa, flash + 0x555);
|
|
|
- writew(0x55, flash + 0xaaa);
|
|
|
- writew(0x90, flash + 0x555);
|
|
|
- info->flash_id = readl(flash);
|
|
|
- writew(0xff, flash);
|
|
|
-
|
|
|
- readw(flash);
|
|
|
-
|
|
|
- if (flags)
|
|
|
- enable_interrupts();
|
|
|
-}
|
|
|
-
|
|
|
-unsigned long flash_init(void)
|
|
|
-{
|
|
|
- unsigned long addr;
|
|
|
- unsigned int i;
|
|
|
-
|
|
|
- flash_info[0].size = CONFIG_SYS_FLASH_SIZE;
|
|
|
- flash_info[0].sector_count = 135;
|
|
|
-
|
|
|
- flash_identify(uncached((void *)CONFIG_SYS_FLASH_BASE), &flash_info[0]);
|
|
|
-
|
|
|
- for (i = 0, addr = 0; i < 8; i++, addr += 0x2000)
|
|
|
- flash_info[0].start[i] = addr;
|
|
|
- for (; i < flash_info[0].sector_count; i++, addr += 0x10000)
|
|
|
- flash_info[0].start[i] = addr;
|
|
|
-
|
|
|
- return CONFIG_SYS_FLASH_SIZE;
|
|
|
-}
|
|
|
-
|
|
|
-void flash_print_info(flash_info_t *info)
|
|
|
-{
|
|
|
- printf("Flash: Vendor ID: 0x%02lx, Product ID: 0x%02lx\n",
|
|
|
- info->flash_id >> 16, info->flash_id & 0xffff);
|
|
|
- printf("Size: %ld MB in %d sectors\n",
|
|
|
- info->size >> 10, info->sector_count);
|
|
|
-}
|
|
|
-
|
|
|
-int flash_erase(flash_info_t *info, int s_first, int s_last)
|
|
|
-{
|
|
|
- unsigned long flags;
|
|
|
- unsigned long start_time;
|
|
|
- uint16_t *fb, *sb;
|
|
|
- unsigned int i;
|
|
|
- int ret;
|
|
|
- uint16_t status;
|
|
|
-
|
|
|
- if ((s_first < 0) || (s_first > s_last)
|
|
|
- || (s_last >= info->sector_count)) {
|
|
|
- puts("Error: first and/or last sector out of range\n");
|
|
|
- return ERR_INVAL;
|
|
|
- }
|
|
|
-
|
|
|
- for (i = s_first; i < s_last; i++)
|
|
|
- if (info->protect[i]) {
|
|
|
- printf("Error: sector %d is protected\n", i);
|
|
|
- return ERR_PROTECTED;
|
|
|
- }
|
|
|
-
|
|
|
- fb = (uint16_t *)uncached(info->start[0]);
|
|
|
-
|
|
|
- dcache_flush_unlocked();
|
|
|
-
|
|
|
- for (i = s_first; (i <= s_last) && !ctrlc(); i++) {
|
|
|
- printf("Erasing sector %3d...", i);
|
|
|
-
|
|
|
- sb = (uint16_t *)uncached(info->start[i]);
|
|
|
-
|
|
|
- flags = disable_interrupts();
|
|
|
-
|
|
|
- start_time = get_timer(0);
|
|
|
-
|
|
|
- /* Unlock sector */
|
|
|
- writew(0xaa, fb + 0x555);
|
|
|
- writew(0x70, sb);
|
|
|
-
|
|
|
- /* Erase sector */
|
|
|
- writew(0xaa, fb + 0x555);
|
|
|
- writew(0x55, fb + 0xaaa);
|
|
|
- writew(0x80, fb + 0x555);
|
|
|
- writew(0xaa, fb + 0x555);
|
|
|
- writew(0x55, fb + 0xaaa);
|
|
|
- writew(0x30, sb);
|
|
|
-
|
|
|
- /* Wait for completion */
|
|
|
- ret = ERR_OK;
|
|
|
- do {
|
|
|
- /* TODO: Timeout */
|
|
|
- status = readw(sb);
|
|
|
- } while ((status != 0xffff) && !(status & 0x28));
|
|
|
-
|
|
|
- writew(0xf0, fb);
|
|
|
-
|
|
|
- /*
|
|
|
- * Make sure the command actually makes it to the bus
|
|
|
- * before we re-enable interrupts.
|
|
|
- */
|
|
|
- readw(fb);
|
|
|
-
|
|
|
- if (flags)
|
|
|
- enable_interrupts();
|
|
|
-
|
|
|
- if (status != 0xffff) {
|
|
|
- printf("Flash erase error at address 0x%p: 0x%02x\n",
|
|
|
- sb, status);
|
|
|
- ret = ERR_PROG_ERROR;
|
|
|
- break;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- if (ctrlc())
|
|
|
- printf("User interrupt!\n");
|
|
|
-
|
|
|
- return ERR_OK;
|
|
|
-}
|
|
|
-
|
|
|
-int write_buff(flash_info_t *info, uchar *src,
|
|
|
- ulong addr, ulong count)
|
|
|
-{
|
|
|
- unsigned long flags;
|
|
|
- uint16_t *base, *p, *s, *end;
|
|
|
- uint16_t word, status, status1;
|
|
|
- int ret = ERR_OK;
|
|
|
-
|
|
|
- if (addr < info->start[0]
|
|
|
- || (addr + count) > (info->start[0] + info->size)
|
|
|
- || (addr + count) < addr) {
|
|
|
- puts("Error: invalid address range\n");
|
|
|
- return ERR_INVAL;
|
|
|
- }
|
|
|
-
|
|
|
- if (addr & 1 || count & 1 || (unsigned int)src & 1) {
|
|
|
- puts("Error: misaligned source, destination or count\n");
|
|
|
- return ERR_ALIGN;
|
|
|
- }
|
|
|
-
|
|
|
- base = (uint16_t *)uncached(info->start[0]);
|
|
|
- end = (uint16_t *)uncached(addr + count);
|
|
|
-
|
|
|
- flags = disable_interrupts();
|
|
|
-
|
|
|
- dcache_flush_unlocked();
|
|
|
- sync_write_buffer();
|
|
|
-
|
|
|
- for (p = (uint16_t *)uncached(addr), s = (uint16_t *)src;
|
|
|
- p < end && !ctrlc(); p++, s++) {
|
|
|
- word = *s;
|
|
|
-
|
|
|
- writew(0xaa, base + 0x555);
|
|
|
- writew(0x55, base + 0xaaa);
|
|
|
- writew(0xa0, base + 0x555);
|
|
|
- writew(word, p);
|
|
|
-
|
|
|
- sync_write_buffer();
|
|
|
-
|
|
|
- /* Wait for completion */
|
|
|
- status1 = readw(p);
|
|
|
- do {
|
|
|
- /* TODO: Timeout */
|
|
|
- status = status1;
|
|
|
- status1 = readw(p);
|
|
|
- } while (((status ^ status1) & 0x40) /* toggled */
|
|
|
- && !(status1 & 0x28)); /* error bits */
|
|
|
-
|
|
|
- /*
|
|
|
- * We'll need to check once again for toggle bit
|
|
|
- * because the toggle bit may stop toggling as I/O5
|
|
|
- * changes to "1" (ref at49bv642.pdf p9)
|
|
|
- */
|
|
|
- status1 = readw(p);
|
|
|
- status = readw(p);
|
|
|
- if ((status ^ status1) & 0x40) {
|
|
|
- printf("Flash write error at address 0x%p: "
|
|
|
- "0x%02x != 0x%02x\n",
|
|
|
- p, status,word);
|
|
|
- ret = ERR_PROG_ERROR;
|
|
|
- writew(0xf0, base);
|
|
|
- readw(base);
|
|
|
- break;
|
|
|
- }
|
|
|
-
|
|
|
- writew(0xf0, base);
|
|
|
- readw(base);
|
|
|
- }
|
|
|
-
|
|
|
- if (flags)
|
|
|
- enable_interrupts();
|
|
|
-
|
|
|
- return ret;
|
|
|
-}
|
|
|
-
|
|
|
-#endif /* CONFIG_ATSTK1000_EXT_FLASH */
|
Andreas Bießmann