mirror of
https://github.com/u-boot/u-boot.git
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1136 lines
28 KiB
C
1136 lines
28 KiB
C
/*
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* (C) Copyright 2000
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <mpc8xx.h>
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flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
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#ifdef CONFIG_FLASH_16BIT
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#define FLASH_WORD_SIZE unsigned short
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#define FLASH_ID_MASK 0xFFFF
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#else
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#define FLASH_WORD_SIZE unsigned long
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#define FLASH_ID_MASK 0xFFFFFFFF
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#endif
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/*-----------------------------------------------------------------------
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* Functions
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*/
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ulong flash_get_size (volatile FLASH_WORD_SIZE * addr, flash_info_t * info);
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#ifndef CONFIG_FLASH_16BIT
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static int write_word (flash_info_t * info, ulong dest, ulong data);
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#else
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static int write_short (flash_info_t * info, ulong dest, ushort data);
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#endif
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/*int flash_write (uchar *, ulong, ulong); */
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/*flash_info_t *addr2info (ulong); */
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static void flash_get_offsets (ulong base, flash_info_t * info);
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/*-----------------------------------------------------------------------
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*/
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unsigned long flash_init (void)
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{
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volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
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volatile memctl8xx_t *memctl = &immap->im_memctl;
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unsigned long size_b0, size_b1;
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int i;
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/* Init: no FLASHes known */
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for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
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flash_info[i].flash_id = FLASH_UNKNOWN;
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}
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/* Static FLASH Bank configuration here - FIXME XXX */
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size_b0 =
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flash_get_size ((volatile FLASH_WORD_SIZE *)
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FLASH_BASE0_PRELIM, &flash_info[0]);
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if (flash_info[0].flash_id == FLASH_UNKNOWN) {
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printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n", size_b0, size_b0 << 20);
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}
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size_b1 =
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flash_get_size ((volatile FLASH_WORD_SIZE *)
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FLASH_BASE1_PRELIM, &flash_info[1]);
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if (size_b1 > size_b0) {
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printf ("## ERROR: "
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"Bank 1 (0x%08lx = %ld MB) > Bank 0 (0x%08lx = %ld MB)\n",
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size_b1, size_b1 << 20, size_b0, size_b0 << 20);
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flash_info[0].flash_id = FLASH_UNKNOWN;
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flash_info[1].flash_id = FLASH_UNKNOWN;
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flash_info[0].sector_count = -1;
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flash_info[1].sector_count = -1;
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flash_info[0].size = 0;
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flash_info[1].size = 0;
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return (0);
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}
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/* Remap FLASH according to real size */
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memctl->memc_or0 = CONFIG_SYS_OR_TIMING_FLASH | (-size_b0 & 0xFFFF8000);
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memctl->memc_br0 = CONFIG_SYS_FLASH_BASE | 0x00000801; /* (CONFIG_SYS_FLASH_BASE & BR_BA_MSK) | BR_MS_GPCM | BR_V; */
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/* Re-do sizing to get full correct info */
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size_b0 = flash_get_size ((volatile FLASH_WORD_SIZE *) CONFIG_SYS_FLASH_BASE,
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&flash_info[0]);
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flash_get_offsets (CONFIG_SYS_FLASH_BASE, &flash_info[0]);
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#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE
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/* monitor protection ON by default */
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(void) flash_protect (FLAG_PROTECT_SET,
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CONFIG_SYS_MONITOR_BASE,
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CONFIG_SYS_MONITOR_BASE + monitor_flash_len - 1,
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&flash_info[0]);
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#endif
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if (size_b1) {
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memctl->memc_or1 =
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CONFIG_SYS_OR_TIMING_FLASH | (-size_b1 & 0xFFFF8000);
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memctl->memc_br1 =
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(CONFIG_SYS_FLASH_BASE | 0x00000801) + (size_b0 & BR_BA_MSK);
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/*((CONFIG_SYS_FLASH_BASE + size_b0) & BR_BA_MSK) |
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BR_MS_GPCM | BR_V; */
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/* Re-do sizing to get full correct info */
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size_b1 =
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flash_get_size ((volatile FLASH_WORD_SIZE
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*) (CONFIG_SYS_FLASH_BASE + size_b0),
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&flash_info[1]);
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flash_get_offsets (CONFIG_SYS_FLASH_BASE + size_b0, &flash_info[1]);
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#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE
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/* monitor protection ON by default */
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(void) flash_protect (FLAG_PROTECT_SET,
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CONFIG_SYS_MONITOR_BASE,
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CONFIG_SYS_MONITOR_BASE + monitor_flash_len -
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1, &flash_info[1]);
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#endif
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} else {
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memctl->memc_br1 = 0; /* invalidate bank */
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flash_info[1].flash_id = FLASH_UNKNOWN;
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flash_info[1].sector_count = -1;
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}
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flash_info[0].size = size_b0;
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flash_info[1].size = size_b1;
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return (size_b0 + size_b1);
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}
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/*-----------------------------------------------------------------------
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*/
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static void flash_get_offsets (ulong base, flash_info_t * info)
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{
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int i;
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/* set up sector start adress table */
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if (info->flash_id & FLASH_BTYPE) {
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if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) {
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#ifndef CONFIG_FLASH_16BIT
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/* set sector offsets for bottom boot block type */
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info->start[0] = base + 0x00000000;
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info->start[1] = base + 0x00004000;
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info->start[2] = base + 0x00008000;
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info->start[3] = base + 0x0000C000;
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info->start[4] = base + 0x00010000;
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info->start[5] = base + 0x00014000;
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info->start[6] = base + 0x00018000;
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info->start[7] = base + 0x0001C000;
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for (i = 8; i < info->sector_count; i++) {
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info->start[i] =
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base + (i * 0x00020000) - 0x000E0000;
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}
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} else {
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/* set sector offsets for bottom boot block type */
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info->start[0] = base + 0x00000000;
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info->start[1] = base + 0x00008000;
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info->start[2] = base + 0x0000C000;
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info->start[3] = base + 0x00010000;
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for (i = 4; i < info->sector_count; i++) {
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info->start[i] =
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base + (i * 0x00020000) - 0x00060000;
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}
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}
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#else
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/* set sector offsets for bottom boot block type */
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info->start[0] = base + 0x00000000;
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info->start[1] = base + 0x00002000;
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info->start[2] = base + 0x00004000;
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info->start[3] = base + 0x00006000;
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info->start[4] = base + 0x00008000;
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info->start[5] = base + 0x0000A000;
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info->start[6] = base + 0x0000C000;
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info->start[7] = base + 0x0000E000;
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for (i = 8; i < info->sector_count; i++) {
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info->start[i] =
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base + (i * 0x00010000) - 0x00070000;
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}
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} else {
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/* set sector offsets for bottom boot block type */
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info->start[0] = base + 0x00000000;
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info->start[1] = base + 0x00004000;
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info->start[2] = base + 0x00006000;
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info->start[3] = base + 0x00008000;
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for (i = 4; i < info->sector_count; i++) {
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info->start[i] =
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base + (i * 0x00010000) - 0x00030000;
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}
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}
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#endif
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} else {
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/* set sector offsets for top boot block type */
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i = info->sector_count - 1;
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if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) {
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#ifndef CONFIG_FLASH_16BIT
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info->start[i--] = base + info->size - 0x00004000;
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info->start[i--] = base + info->size - 0x00008000;
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info->start[i--] = base + info->size - 0x0000C000;
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info->start[i--] = base + info->size - 0x00010000;
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info->start[i--] = base + info->size - 0x00014000;
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info->start[i--] = base + info->size - 0x00018000;
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info->start[i--] = base + info->size - 0x0001C000;
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for (; i >= 0; i--) {
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info->start[i] = base + i * 0x00020000;
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}
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} else {
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info->start[i--] = base + info->size - 0x00008000;
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info->start[i--] = base + info->size - 0x0000C000;
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info->start[i--] = base + info->size - 0x00010000;
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for (; i >= 0; i--) {
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info->start[i] = base + i * 0x00020000;
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}
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}
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#else
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info->start[i--] = base + info->size - 0x00002000;
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info->start[i--] = base + info->size - 0x00004000;
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info->start[i--] = base + info->size - 0x00006000;
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info->start[i--] = base + info->size - 0x00008000;
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info->start[i--] = base + info->size - 0x0000A000;
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info->start[i--] = base + info->size - 0x0000C000;
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info->start[i--] = base + info->size - 0x0000E000;
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for (; i >= 0; i--) {
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info->start[i] = base + i * 0x00010000;
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}
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} else {
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info->start[i--] = base + info->size - 0x00004000;
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info->start[i--] = base + info->size - 0x00006000;
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info->start[i--] = base + info->size - 0x00008000;
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for (; i >= 0; i--) {
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info->start[i] = base + i * 0x00010000;
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}
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}
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#endif
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}
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}
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/*-----------------------------------------------------------------------
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*/
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void flash_print_info (flash_info_t * info)
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{
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int i;
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uchar *boottype;
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uchar botboot[] = ", bottom boot sect)\n";
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uchar topboot[] = ", top boot sector)\n";
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if (info->flash_id == FLASH_UNKNOWN) {
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printf ("missing or unknown FLASH type\n");
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return;
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}
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switch (info->flash_id & FLASH_VENDMASK) {
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case FLASH_MAN_AMD:
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printf ("AMD ");
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break;
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case FLASH_MAN_FUJ:
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printf ("FUJITSU ");
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break;
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case FLASH_MAN_SST:
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printf ("SST ");
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break;
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case FLASH_MAN_STM:
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printf ("STM ");
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break;
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case FLASH_MAN_INTEL:
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printf ("INTEL ");
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break;
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default:
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printf ("Unknown Vendor ");
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break;
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}
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if (info->flash_id & 0x0001) {
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boottype = botboot;
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} else {
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boottype = topboot;
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}
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switch (info->flash_id & FLASH_TYPEMASK) {
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case FLASH_AM400B:
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printf ("AM29LV400B (4 Mbit%s", boottype);
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break;
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case FLASH_AM400T:
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printf ("AM29LV400T (4 Mbit%s", boottype);
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break;
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case FLASH_AM800B:
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printf ("AM29LV800B (8 Mbit%s", boottype);
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break;
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case FLASH_AM800T:
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printf ("AM29LV800T (8 Mbit%s", boottype);
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break;
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case FLASH_AM160B:
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printf ("AM29LV160B (16 Mbit%s", boottype);
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break;
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case FLASH_AM160T:
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printf ("AM29LV160T (16 Mbit%s", boottype);
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break;
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case FLASH_AM320B:
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printf ("AM29LV320B (32 Mbit%s", boottype);
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break;
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case FLASH_AM320T:
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printf ("AM29LV320T (32 Mbit%s", boottype);
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break;
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case FLASH_INTEL800B:
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printf ("INTEL28F800B (8 Mbit%s", boottype);
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break;
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case FLASH_INTEL800T:
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printf ("INTEL28F800T (8 Mbit%s", boottype);
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break;
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case FLASH_INTEL160B:
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printf ("INTEL28F160B (16 Mbit%s", boottype);
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break;
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case FLASH_INTEL160T:
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printf ("INTEL28F160T (16 Mbit%s", boottype);
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break;
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case FLASH_INTEL320B:
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printf ("INTEL28F320B (32 Mbit%s", boottype);
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break;
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case FLASH_INTEL320T:
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printf ("INTEL28F320T (32 Mbit%s", boottype);
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break;
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#if 0 /* enable when devices are available */
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case FLASH_INTEL640B:
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printf ("INTEL28F640B (64 Mbit%s", boottype);
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break;
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case FLASH_INTEL640T:
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printf ("INTEL28F640T (64 Mbit%s", boottype);
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break;
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#endif
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default:
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printf ("Unknown Chip Type\n");
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break;
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}
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printf (" Size: %ld MB in %d Sectors\n",
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info->size >> 20, info->sector_count);
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printf (" Sector Start Addresses:");
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for (i = 0; i < info->sector_count; ++i) {
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if ((i % 5) == 0)
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printf ("\n ");
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printf (" %08lX%s",
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info->start[i], info->protect[i] ? " (RO)" : " ");
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}
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printf ("\n");
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return;
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}
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/*-----------------------------------------------------------------------
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*/
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/*-----------------------------------------------------------------------
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*/
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/*
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* The following code cannot be run from FLASH!
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*/
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ulong flash_get_size (volatile FLASH_WORD_SIZE * addr, flash_info_t * info)
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{
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short i;
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ulong base = (ulong) addr;
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FLASH_WORD_SIZE value;
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/* Write auto select command: read Manufacturer ID */
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#ifndef CONFIG_FLASH_16BIT
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/*
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* Note: if it is an AMD flash and the word at addr[0000]
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* is 0x00890089 this routine will think it is an Intel
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* flash device and may(most likely) cause trouble.
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*/
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addr[0x0000] = 0x00900090;
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if (addr[0x0000] != 0x00890089) {
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addr[0x0555] = 0x00AA00AA;
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addr[0x02AA] = 0x00550055;
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addr[0x0555] = 0x00900090;
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#else
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/*
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* Note: if it is an AMD flash and the word at addr[0000]
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* is 0x0089 this routine will think it is an Intel
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* flash device and may(most likely) cause trouble.
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*/
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addr[0x0000] = 0x0090;
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if (addr[0x0000] != 0x0089) {
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addr[0x0555] = 0x00AA;
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addr[0x02AA] = 0x0055;
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addr[0x0555] = 0x0090;
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#endif
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}
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value = addr[0];
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switch (value) {
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case (AMD_MANUFACT & FLASH_ID_MASK):
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info->flash_id = FLASH_MAN_AMD;
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break;
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case (FUJ_MANUFACT & FLASH_ID_MASK):
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info->flash_id = FLASH_MAN_FUJ;
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break;
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case (STM_MANUFACT & FLASH_ID_MASK):
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info->flash_id = FLASH_MAN_STM;
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break;
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case (SST_MANUFACT & FLASH_ID_MASK):
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info->flash_id = FLASH_MAN_SST;
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break;
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case (INTEL_MANUFACT & FLASH_ID_MASK):
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info->flash_id = FLASH_MAN_INTEL;
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break;
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default:
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info->flash_id = FLASH_UNKNOWN;
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info->sector_count = 0;
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info->size = 0;
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return (0); /* no or unknown flash */
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}
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value = addr[1]; /* device ID */
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switch (value) {
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case (AMD_ID_LV400T & FLASH_ID_MASK):
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info->flash_id += FLASH_AM400T;
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info->sector_count = 11;
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info->size = 0x00100000;
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break; /* => 1 MB */
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case (AMD_ID_LV400B & FLASH_ID_MASK):
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info->flash_id += FLASH_AM400B;
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info->sector_count = 11;
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info->size = 0x00100000;
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break; /* => 1 MB */
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case (AMD_ID_LV800T & FLASH_ID_MASK):
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info->flash_id += FLASH_AM800T;
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info->sector_count = 19;
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info->size = 0x00200000;
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break; /* => 2 MB */
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case (AMD_ID_LV800B & FLASH_ID_MASK):
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info->flash_id += FLASH_AM800B;
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info->sector_count = 19;
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info->size = 0x00200000;
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break; /* => 2 MB */
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case (AMD_ID_LV160T & FLASH_ID_MASK):
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info->flash_id += FLASH_AM160T;
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info->sector_count = 35;
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info->size = 0x00400000;
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break; /* => 4 MB */
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case (AMD_ID_LV160B & FLASH_ID_MASK):
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info->flash_id += FLASH_AM160B;
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info->sector_count = 35;
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info->size = 0x00400000;
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break; /* => 4 MB */
|
|
#if 0 /* enable when device IDs are available */
|
|
case (AMD_ID_LV320T & FLASH_ID_MASK):
|
|
info->flash_id += FLASH_AM320T;
|
|
info->sector_count = 67;
|
|
info->size = 0x00800000;
|
|
break; /* => 8 MB */
|
|
|
|
case (AMD_ID_LV320B & FLASH_ID_MASK):
|
|
info->flash_id += FLASH_AM320B;
|
|
info->sector_count = 67;
|
|
info->size = 0x00800000;
|
|
break; /* => 8 MB */
|
|
#endif
|
|
|
|
case (INTEL_ID_28F800B3T & FLASH_ID_MASK):
|
|
info->flash_id += FLASH_INTEL800T;
|
|
info->sector_count = 23;
|
|
info->size = 0x00200000;
|
|
break; /* => 2 MB */
|
|
|
|
case (INTEL_ID_28F800B3B & FLASH_ID_MASK):
|
|
info->flash_id += FLASH_INTEL800B;
|
|
info->sector_count = 23;
|
|
info->size = 0x00200000;
|
|
break; /* => 2 MB */
|
|
|
|
case (INTEL_ID_28F160B3T & FLASH_ID_MASK):
|
|
info->flash_id += FLASH_INTEL160T;
|
|
info->sector_count = 39;
|
|
info->size = 0x00400000;
|
|
break; /* => 4 MB */
|
|
|
|
case (INTEL_ID_28F160B3B & FLASH_ID_MASK):
|
|
info->flash_id += FLASH_INTEL160B;
|
|
info->sector_count = 39;
|
|
info->size = 0x00400000;
|
|
break; /* => 4 MB */
|
|
|
|
case (INTEL_ID_28F320B3T & FLASH_ID_MASK):
|
|
info->flash_id += FLASH_INTEL320T;
|
|
info->sector_count = 71;
|
|
info->size = 0x00800000;
|
|
break; /* => 8 MB */
|
|
|
|
case (INTEL_ID_28F320B3B & FLASH_ID_MASK):
|
|
info->flash_id += FLASH_AM320B;
|
|
info->sector_count = 71;
|
|
info->size = 0x00800000;
|
|
break; /* => 8 MB */
|
|
|
|
#if 0 /* enable when devices are available */
|
|
case (INTEL_ID_28F320B3T & FLASH_ID_MASK):
|
|
info->flash_id += FLASH_INTEL320T;
|
|
info->sector_count = 135;
|
|
info->size = 0x01000000;
|
|
break; /* => 16 MB */
|
|
|
|
case (INTEL_ID_28F320B3B & FLASH_ID_MASK):
|
|
info->flash_id += FLASH_AM320B;
|
|
info->sector_count = 135;
|
|
info->size = 0x01000000;
|
|
break; /* => 16 MB */
|
|
#endif
|
|
default:
|
|
info->flash_id = FLASH_UNKNOWN;
|
|
return (0); /* => no or unknown flash */
|
|
|
|
}
|
|
|
|
/* set up sector start adress table */
|
|
if (info->flash_id & FLASH_BTYPE) {
|
|
if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) {
|
|
|
|
#ifndef CONFIG_FLASH_16BIT
|
|
/* set sector offsets for bottom boot block type */
|
|
info->start[0] = base + 0x00000000;
|
|
info->start[1] = base + 0x00004000;
|
|
info->start[2] = base + 0x00008000;
|
|
info->start[3] = base + 0x0000C000;
|
|
info->start[4] = base + 0x00010000;
|
|
info->start[5] = base + 0x00014000;
|
|
info->start[6] = base + 0x00018000;
|
|
info->start[7] = base + 0x0001C000;
|
|
for (i = 8; i < info->sector_count; i++) {
|
|
info->start[i] =
|
|
base + (i * 0x00020000) - 0x000E0000;
|
|
}
|
|
} else {
|
|
/* set sector offsets for bottom boot block type */
|
|
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;
|
|
}
|
|
}
|
|
#else
|
|
/* set sector offsets for bottom boot block type */
|
|
info->start[0] = base + 0x00000000;
|
|
info->start[1] = base + 0x00002000;
|
|
info->start[2] = base + 0x00004000;
|
|
info->start[3] = base + 0x00006000;
|
|
info->start[4] = base + 0x00008000;
|
|
info->start[5] = base + 0x0000A000;
|
|
info->start[6] = base + 0x0000C000;
|
|
info->start[7] = base + 0x0000E000;
|
|
for (i = 8; i < info->sector_count; i++) {
|
|
info->start[i] =
|
|
base + (i * 0x00010000) - 0x00070000;
|
|
}
|
|
} else {
|
|
/* set sector offsets for bottom boot block type */
|
|
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;
|
|
}
|
|
}
|
|
#endif
|
|
} else {
|
|
/* set sector offsets for top boot block type */
|
|
i = info->sector_count - 1;
|
|
if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) {
|
|
|
|
#ifndef CONFIG_FLASH_16BIT
|
|
info->start[i--] = base + info->size - 0x00004000;
|
|
info->start[i--] = base + info->size - 0x00008000;
|
|
info->start[i--] = base + info->size - 0x0000C000;
|
|
info->start[i--] = base + info->size - 0x00010000;
|
|
info->start[i--] = base + info->size - 0x00014000;
|
|
info->start[i--] = base + info->size - 0x00018000;
|
|
info->start[i--] = base + info->size - 0x0001C000;
|
|
for (; i >= 0; i--) {
|
|
info->start[i] = base + i * 0x00020000;
|
|
}
|
|
|
|
} else {
|
|
|
|
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;
|
|
}
|
|
}
|
|
#else
|
|
info->start[i--] = base + info->size - 0x00002000;
|
|
info->start[i--] = base + info->size - 0x00004000;
|
|
info->start[i--] = base + info->size - 0x00006000;
|
|
info->start[i--] = base + info->size - 0x00008000;
|
|
info->start[i--] = base + info->size - 0x0000A000;
|
|
info->start[i--] = base + info->size - 0x0000C000;
|
|
info->start[i--] = base + info->size - 0x0000E000;
|
|
for (; i >= 0; i--) {
|
|
info->start[i] = base + i * 0x00010000;
|
|
}
|
|
|
|
} else {
|
|
|
|
info->start[i--] = base + info->size - 0x00004000;
|
|
info->start[i--] = base + info->size - 0x00006000;
|
|
info->start[i--] = base + info->size - 0x00008000;
|
|
for (; i >= 0; i--) {
|
|
info->start[i] = base + i * 0x00010000;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/* 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 FLASH_WORD_SIZE *) (info->start[i]);
|
|
info->protect[i] = addr[2] & 1;
|
|
}
|
|
|
|
/*
|
|
* Prevent writes to uninitialized FLASH.
|
|
*/
|
|
if (info->flash_id != FLASH_UNKNOWN) {
|
|
addr = (volatile FLASH_WORD_SIZE *) info->start[0];
|
|
if ((info->flash_id & 0xFF00) == FLASH_MAN_INTEL) {
|
|
*addr = (0x00F000F0 & FLASH_ID_MASK); /* reset bank */
|
|
} else {
|
|
*addr = (0x00FF00FF & FLASH_ID_MASK); /* reset bank */
|
|
}
|
|
}
|
|
|
|
return (info->size);
|
|
}
|
|
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
|
|
int flash_erase (flash_info_t * info, int s_first, int s_last)
|
|
{
|
|
|
|
volatile FLASH_WORD_SIZE *addr =
|
|
(volatile FLASH_WORD_SIZE *) (info->start[0]);
|
|
int flag, prot, sect, l_sect, barf;
|
|
ulong start, now, last;
|
|
int rcode = 0;
|
|
|
|
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) &&
|
|
((info->flash_id & FLASH_VENDMASK) != FLASH_MAN_INTEL))) {
|
|
printf ("Can't erase unknown flash type - aborted\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");
|
|
}
|
|
|
|
l_sect = -1;
|
|
|
|
/* Disable interrupts which might cause a timeout here */
|
|
flag = disable_interrupts ();
|
|
if (info->flash_id < FLASH_AMD_COMP) {
|
|
#ifndef CONFIG_FLASH_16BIT
|
|
addr[0x0555] = 0x00AA00AA;
|
|
addr[0x02AA] = 0x00550055;
|
|
addr[0x0555] = 0x00800080;
|
|
addr[0x0555] = 0x00AA00AA;
|
|
addr[0x02AA] = 0x00550055;
|
|
#else
|
|
addr[0x0555] = 0x00AA;
|
|
addr[0x02AA] = 0x0055;
|
|
addr[0x0555] = 0x0080;
|
|
addr[0x0555] = 0x00AA;
|
|
addr[0x02AA] = 0x0055;
|
|
#endif
|
|
/* Start erase on unprotected sectors */
|
|
for (sect = s_first; sect <= s_last; sect++) {
|
|
if (info->protect[sect] == 0) { /* not protected */
|
|
addr = (volatile FLASH_WORD_SIZE *) (info->start[sect]);
|
|
addr[0] = (0x00300030 & FLASH_ID_MASK);
|
|
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 = (volatile FLASH_WORD_SIZE *) (info->start[l_sect]);
|
|
while ((addr[0] & (0x00800080 & FLASH_ID_MASK)) !=
|
|
(0x00800080 & FLASH_ID_MASK)) {
|
|
if ((now = get_timer (start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
|
|
printf ("Timeout\n");
|
|
return 1;
|
|
}
|
|
/* show that we're waiting */
|
|
if ((now - last) > 1000) { /* every second */
|
|
serial_putc ('.');
|
|
last = now;
|
|
}
|
|
}
|
|
|
|
DONE:
|
|
/* reset to read mode */
|
|
addr = (volatile FLASH_WORD_SIZE *) info->start[0];
|
|
addr[0] = (0x00F000F0 & FLASH_ID_MASK); /* reset bank */
|
|
} else {
|
|
|
|
|
|
for (sect = s_first; sect <= s_last; sect++) {
|
|
if (info->protect[sect] == 0) { /* not protected */
|
|
barf = 0;
|
|
#ifndef CONFIG_FLASH_16BIT
|
|
addr = (vu_long *) (info->start[sect]);
|
|
addr[0] = 0x00200020;
|
|
addr[0] = 0x00D000D0;
|
|
while (!(addr[0] & 0x00800080)); /* wait for error or finish */
|
|
if (addr[0] & 0x003A003A) { /* check for error */
|
|
barf = addr[0] & 0x003A0000;
|
|
if (barf) {
|
|
barf >>= 16;
|
|
} else {
|
|
barf = addr[0] & 0x0000003A;
|
|
}
|
|
}
|
|
#else
|
|
addr = (vu_short *) (info->start[sect]);
|
|
addr[0] = 0x0020;
|
|
addr[0] = 0x00D0;
|
|
while (!(addr[0] & 0x0080)); /* wait for error or finish */
|
|
if (addr[0] & 0x003A) /* check for error */
|
|
barf = addr[0] & 0x003A;
|
|
#endif
|
|
if (barf) {
|
|
printf ("\nFlash error in sector at %lx\n", (unsigned long) addr);
|
|
if (barf & 0x0002)
|
|
printf ("Block locked, not erased.\n");
|
|
if ((barf & 0x0030) == 0x0030)
|
|
printf ("Command Sequence error.\n");
|
|
if ((barf & 0x0030) == 0x0020)
|
|
printf ("Block Erase error.\n");
|
|
if (barf & 0x0008)
|
|
printf ("Vpp Low error.\n");
|
|
rcode = 1;
|
|
} else
|
|
printf (".");
|
|
l_sect = sect;
|
|
}
|
|
addr = (volatile FLASH_WORD_SIZE *) info->start[0];
|
|
addr[0] = (0x00FF00FF & FLASH_ID_MASK); /* reset bank */
|
|
|
|
}
|
|
|
|
}
|
|
printf (" done\n");
|
|
return rcode;
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* 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)
|
|
{
|
|
#ifndef CONFIG_FLASH_16BIT
|
|
ulong cp, wp, data;
|
|
int l;
|
|
#else
|
|
ulong cp, wp;
|
|
ushort data;
|
|
#endif
|
|
int i, rc;
|
|
|
|
#ifndef CONFIG_FLASH_16BIT
|
|
|
|
|
|
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, 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, 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, data));
|
|
|
|
#else
|
|
wp = (addr & ~1); /* get lower word aligned address */
|
|
|
|
/*
|
|
* handle unaligned start byte
|
|
*/
|
|
if (addr - wp) {
|
|
data = 0;
|
|
data = (data << 8) | *src++;
|
|
--cnt;
|
|
if ((rc = write_short (info, wp, data)) != 0) {
|
|
return (rc);
|
|
}
|
|
wp += 2;
|
|
}
|
|
|
|
/*
|
|
* handle word aligned part
|
|
*/
|
|
/* l = 0; used for debuging */
|
|
while (cnt >= 2) {
|
|
data = 0;
|
|
for (i = 0; i < 2; ++i) {
|
|
data = (data << 8) | *src++;
|
|
}
|
|
|
|
/* if(!l){
|
|
printf("%x",data);
|
|
l = 1;
|
|
} used for debuging */
|
|
|
|
if ((rc = write_short (info, wp, data)) != 0) {
|
|
return (rc);
|
|
}
|
|
wp += 2;
|
|
cnt -= 2;
|
|
}
|
|
|
|
if (cnt == 0) {
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* handle unaligned tail bytes
|
|
*/
|
|
data = 0;
|
|
for (i = 0, cp = wp; i < 2 && cnt > 0; ++i, ++cp) {
|
|
data = (data << 8) | *src++;
|
|
--cnt;
|
|
}
|
|
for (; i < 2; ++i, ++cp) {
|
|
data = (data << 8) | (*(uchar *) cp);
|
|
}
|
|
|
|
return (write_short (info, wp, data));
|
|
|
|
|
|
#endif
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Write a word to Flash, returns:
|
|
* 0 - OK
|
|
* 1 - write timeout
|
|
* 2 - Flash not erased
|
|
*/
|
|
#ifndef CONFIG_FLASH_16BIT
|
|
static int write_word (flash_info_t * info, ulong dest, ulong data)
|
|
{
|
|
vu_long *addr = (vu_long *) (info->start[0]);
|
|
ulong start, barf;
|
|
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 ();
|
|
|
|
if (info->flash_id > FLASH_AMD_COMP) {
|
|
/* AMD stuff */
|
|
addr[0x0555] = 0x00AA00AA;
|
|
addr[0x02AA] = 0x00550055;
|
|
addr[0x0555] = 0x00A000A0;
|
|
} else {
|
|
/* intel stuff */
|
|
*addr = 0x00400040;
|
|
}
|
|
*((vu_long *) dest) = data;
|
|
|
|
/* re-enable interrupts if necessary */
|
|
if (flag)
|
|
enable_interrupts ();
|
|
|
|
/* data polling for D7 */
|
|
start = get_timer (0);
|
|
|
|
if (info->flash_id > FLASH_AMD_COMP) {
|
|
|
|
while ((*((vu_long *) dest) & 0x00800080) !=
|
|
(data & 0x00800080)) {
|
|
if (get_timer (start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
|
|
return (1);
|
|
}
|
|
}
|
|
|
|
} else {
|
|
|
|
while (!(addr[0] & 0x00800080)) { /* wait for error or finish */
|
|
if (get_timer (start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
|
|
return (1);
|
|
}
|
|
|
|
if (addr[0] & 0x003A003A) { /* check for error */
|
|
barf = addr[0] & 0x003A0000;
|
|
if (barf) {
|
|
barf >>= 16;
|
|
} else {
|
|
barf = addr[0] & 0x0000003A;
|
|
}
|
|
printf ("\nFlash write error at address %lx\n", (unsigned long) dest);
|
|
if (barf & 0x0002)
|
|
printf ("Block locked, not erased.\n");
|
|
if (barf & 0x0010)
|
|
printf ("Programming error.\n");
|
|
if (barf & 0x0008)
|
|
printf ("Vpp Low error.\n");
|
|
return (2);
|
|
}
|
|
|
|
|
|
}
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
#else
|
|
|
|
static int write_short (flash_info_t * info, ulong dest, ushort data)
|
|
{
|
|
vu_short *addr = (vu_short *) (info->start[0]);
|
|
ulong start, barf;
|
|
int flag;
|
|
|
|
/* Check if Flash is (sufficiently) erased */
|
|
if ((*((vu_short *) dest) & data) != data) {
|
|
return (2);
|
|
}
|
|
|
|
/* Disable interrupts which might cause a timeout here */
|
|
flag = disable_interrupts ();
|
|
|
|
if (info->flash_id < FLASH_AMD_COMP) {
|
|
/* AMD stuff */
|
|
addr[0x0555] = 0x00AA;
|
|
addr[0x02AA] = 0x0055;
|
|
addr[0x0555] = 0x00A0;
|
|
} else {
|
|
/* intel stuff */
|
|
*addr = 0x00D0;
|
|
*addr = 0x0040;
|
|
}
|
|
*((vu_short *) dest) = data;
|
|
|
|
/* re-enable interrupts if necessary */
|
|
if (flag)
|
|
enable_interrupts ();
|
|
|
|
/* data polling for D7 */
|
|
start = get_timer (0);
|
|
|
|
if (info->flash_id < FLASH_AMD_COMP) {
|
|
/* AMD stuff */
|
|
while ((*((vu_short *) dest) & 0x0080) != (data & 0x0080)) {
|
|
if (get_timer (start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
|
|
return (1);
|
|
}
|
|
}
|
|
|
|
} else {
|
|
/* intel stuff */
|
|
while (!(addr[0] & 0x0080)) { /* wait for error or finish */
|
|
if (get_timer (start) > CONFIG_SYS_FLASH_WRITE_TOUT)
|
|
return (1);
|
|
}
|
|
|
|
if (addr[0] & 0x003A) { /* check for error */
|
|
barf = addr[0] & 0x003A;
|
|
printf ("\nFlash write error at address %lx\n",
|
|
(unsigned long) dest);
|
|
if (barf & 0x0002)
|
|
printf ("Block locked, not erased.\n");
|
|
if (barf & 0x0010)
|
|
printf ("Programming error.\n");
|
|
if (barf & 0x0008)
|
|
printf ("Vpp Low error.\n");
|
|
return (2);
|
|
}
|
|
*addr = 0x00B0;
|
|
*addr = 0x0070;
|
|
while (!(addr[0] & 0x0080)) { /* wait for error or finish */
|
|
if (get_timer (start) > CONFIG_SYS_FLASH_WRITE_TOUT)
|
|
return (1);
|
|
}
|
|
*addr = 0x00FF;
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
#endif
|
|
/*-----------------------------------------------------------------------*/
|