mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-30 08:31:03 +00:00
6d0f6bcf33
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
583 lines
16 KiB
C
583 lines
16 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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* (C) Copyright 2001-2003
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*
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* Changes for MATRIX Vision mvBLUE devices
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* MATRIX Vision GmbH / hg,as info@matrix-vision.de
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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 <mpc824x.h>
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#if 0
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#define mvdebug(p) printf ##p
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#else
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#define mvdebug(p)
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#endif
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flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
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#define FLASH_BUS_WIDTH 8
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#if (FLASH_BUS_WIDTH==32)
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#define FLASH_DATA_MASK 0xffffffff
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#define FLASH_SHIFT 1
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#define FDT vu_long
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#elif (FLASH_BUS_WIDTH==16)
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#define FLASH_DATA_MASK 0xff
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#define FLASH_SHIFT 0
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#define FDT vu_short
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#elif (FLASH_BUS_WIDTH==8)
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#define FLASH_DATA_MASK 0xff
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#define FLASH_SHIFT 0
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#define FDT vu_char
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#else
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#error FLASH_BUS_WIDTH undefined
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#endif
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/*-----------------------------------------------------------------------
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* Functions
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*/
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static ulong flash_get_size (vu_long *address, flash_info_t *info);
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static int write_word (flash_info_t *info, ulong dest, ulong data);
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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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unsigned long size_b0;
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int i;
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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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size_b0 = flash_get_size((vu_long *)0xffc00000, &flash_info[0]);
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if (flash_info[0].flash_id == FLASH_UNKNOWN) {
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printf ("## Unknown FLASH : Size = 0x%08lx = %ld MB\n",
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size_b0, size_b0<<20);
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}
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flash_get_offsets (0xffc00000, &flash_info[0]);
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flash_info[0].size = size_b0;
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/* monitor protection OFF by default */
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flash_protect ( FLAG_PROTECT_CLEAR, 0xffc00000, 0x2000, flash_info );
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return size_b0;
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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 address table */
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if (info->flash_id & FLASH_BTYPE)
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{ /* bottom boot sector types - these are the useful ones! */
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/* set sector offsets for bottom boot block type */
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if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B)
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{ /* AMDLV320B has 8 x 8k bottom boot sectors */
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for (i = 0; i < 8; i++) /* +8k */
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info->start[i] = base + (i * (0x00002000 << FLASH_SHIFT));
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for (; i < info->sector_count; i++) /* +64k */
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info->start[i] = base + (i * (0x00010000 << FLASH_SHIFT)) - (0x00070000 << FLASH_SHIFT);
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}
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else
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{ /* other types have 4 bottom boot sectors (16,8,8,32) */
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i = 0;
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info->start[i++] = base + 0x00000000; /* - */
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info->start[i++] = base + (0x00004000 << FLASH_SHIFT); /* +16k */
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info->start[i++] = base + (0x00006000 << FLASH_SHIFT); /* +8k */
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info->start[i++] = base + (0x00008000 << FLASH_SHIFT); /* +8k */
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info->start[i++] = base + (0x00010000 << FLASH_SHIFT); /* +32k */
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for (; i < info->sector_count; i++) /* +64k */
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info->start[i] = base + (i * (0x00010000 << FLASH_SHIFT)) - (0x00030000 << FLASH_SHIFT);
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}
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}
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else
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{ /* top boot sector types - not so useful */
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/* set sector offsets for top boot block type */
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if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T)
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{ /* AMDLV320T has 8 x 8k top boot sectors */
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for (i = 0; i < info->sector_count - 8; i++) /* +64k */
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info->start[i] = base + (i * (0x00010000 << FLASH_SHIFT));
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for (; i < info->sector_count; i++) /* +8k */
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info->start[i] = base + (i * (0x00002000 << FLASH_SHIFT));
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}
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else
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{ /* other types have 4 top boot sectors (32,8,8,16) */
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for (i = 0; i < info->sector_count - 4; i++) /* +64k */
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info->start[i] = base + (i * (0x00010000 << FLASH_SHIFT));
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info->start[i++] = base + info->size - (0x00010000 << FLASH_SHIFT); /* -32k */
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info->start[i++] = base + info->size - (0x00008000 << FLASH_SHIFT); /* -8k */
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info->start[i++] = base + info->size - (0x00006000 << FLASH_SHIFT); /* -8k */
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info->start[i] = base + info->size - (0x00004000 << FLASH_SHIFT); /* -16k */
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}
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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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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: printf ("AMD "); break;
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case FLASH_MAN_FUJ: printf ("FUJITSU "); break;
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case FLASH_MAN_STM: printf ("ST "); break;
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default: printf ("Unknown Vendor "); break;
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}
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switch (info->flash_id & FLASH_TYPEMASK) {
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case FLASH_AM160B: printf ("AM29LV160B (16 Mbit, bottom boot sect)\n");
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break;
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case FLASH_AM160T: printf ("AM29LV160T (16 Mbit, top boot sector)\n");
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break;
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case FLASH_AM320B: printf ("AM29LV320B (32 Mbit, bottom boot sect)\n");
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break;
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case FLASH_AM320T: printf ("AM29LV320T (32 Mbit, top boot sector)\n");
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break;
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case FLASH_STMW320DB: printf ("M29W320B (32 Mbit, bottom boot sect)\n");
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break;
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case FLASH_STMW320DT: printf ("M29W320T (32 Mbit, top boot sector)\n");
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break;
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default: 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", 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", info->start[i], info->protect[i] ? " (RO)" : " ");
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}
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printf ("\n");
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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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#define AMD_ID_LV160T_MVS (AMD_ID_LV160T & FLASH_DATA_MASK)
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#define AMD_ID_LV160B_MVS (AMD_ID_LV160B & FLASH_DATA_MASK)
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#define AMD_ID_LV320T_MVS (AMD_ID_LV320T & FLASH_DATA_MASK)
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#define AMD_ID_LV320B_MVS (AMD_ID_LV320B & FLASH_DATA_MASK)
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#define STM_ID_W320DT_MVS (STM_ID_29W320DT & FLASH_DATA_MASK)
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#define STM_ID_W320DB_MVS (STM_ID_29W320DB & FLASH_DATA_MASK)
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#define AMD_MANUFACT_MVS (AMD_MANUFACT & FLASH_DATA_MASK)
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#define FUJ_MANUFACT_MVS (FUJ_MANUFACT & FLASH_DATA_MASK)
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#define STM_MANUFACT_MVS (STM_MANUFACT & FLASH_DATA_MASK)
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#if (FLASH_BUS_WIDTH >= 16)
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#define AUTOSELECT_ADDR1 0x0555
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#define AUTOSELECT_ADDR2 0x02AA
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#define AUTOSELECT_ADDR3 AUTOSELECT_ADDR1
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#else
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#define AUTOSELECT_ADDR1 0x0AAA
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#define AUTOSELECT_ADDR2 0x0555
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#define AUTOSELECT_ADDR3 AUTOSELECT_ADDR1
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#endif
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#define AUTOSELECT_DATA1 (0x00AA00AA & FLASH_DATA_MASK)
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#define AUTOSELECT_DATA2 (0x00550055 & FLASH_DATA_MASK)
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#define AUTOSELECT_DATA3 (0x00900090 & FLASH_DATA_MASK)
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#define RESET_BANK_DATA (0x00F000F0 & FLASH_DATA_MASK)
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static ulong flash_get_size (vu_long *address, flash_info_t *info)
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{
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short i;
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FDT value;
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FDT *addr = (FDT *)address;
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ulong base = (ulong)address;
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addr[AUTOSELECT_ADDR1] = AUTOSELECT_DATA1;
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addr[AUTOSELECT_ADDR2] = AUTOSELECT_DATA2;
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addr[AUTOSELECT_ADDR3] = AUTOSELECT_DATA3;
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__asm__ __volatile__("sync");
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udelay(180);
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value = addr[0]; /* manufacturer ID */
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switch (value) {
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case AMD_MANUFACT_MVS:
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info->flash_id = FLASH_MAN_AMD;
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break;
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case FUJ_MANUFACT_MVS:
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info->flash_id = FLASH_MAN_FUJ;
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break;
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case STM_MANUFACT_MVS:
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info->flash_id = FLASH_MAN_STM;
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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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#if (FLASH_BUS_WIDTH >= 16)
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value = addr[1]; /* device ID */
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#else
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value = addr[2]; /* device ID */
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#endif
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switch (value) {
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case AMD_ID_LV160T_MVS:
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info->flash_id += FLASH_AM160T;
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info->sector_count = 37;
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info->size = (0x00200000 << FLASH_SHIFT);
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break; /* => 2 or 4 MB */
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case AMD_ID_LV160B_MVS:
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info->flash_id += FLASH_AM160B;
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info->sector_count = 37;
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info->size = (0x00200000 << FLASH_SHIFT);
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break; /* => 2 or 4 MB */
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case AMD_ID_LV320T_MVS:
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info->flash_id += FLASH_AM320T;
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info->sector_count = 71;
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info->size = (0x00400000 << FLASH_SHIFT);
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break; /* => 4 or 8 MB */
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case AMD_ID_LV320B_MVS:
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info->flash_id += FLASH_AM320B;
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info->sector_count = 71;
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info->size = (0x00400000 << FLASH_SHIFT);
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break; /* => 4 or 8MB */
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case STM_ID_W320DT_MVS:
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info->flash_id += FLASH_STMW320DT;
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info->sector_count = 67;
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info->size = (0x00400000 << FLASH_SHIFT);
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break; /* => 4 or 8 MB */
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case STM_ID_W320DB_MVS:
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info->flash_id += FLASH_STMW320DB;
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info->sector_count = 67;
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info->size = (0x00400000 << FLASH_SHIFT);
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break; /* => 4 or 8MB */
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default:
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info->flash_id = FLASH_UNKNOWN;
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return (0); /* => no or unknown flash */
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}
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/* set up sector start address table */
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flash_get_offsets (base, info);
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/* check for protected sectors */
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for (i = 0; i < info->sector_count; i++) {
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/* read sector protection at sector address, (A7 .. A0) = 0x02 */
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/* D0 = 1 if protected */
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addr = (FDT *)(info->start[i]);
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info->protect[i] = addr[2] & 1;
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}
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/*
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* Prevent writes to uninitialized FLASH.
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*/
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if (info->flash_id != FLASH_UNKNOWN) {
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addr = (FDT *)info->start[0];
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*addr = RESET_BANK_DATA; /* reset bank */
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}
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return (info->size);
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}
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/*-----------------------------------------------------------------------
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*/
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#if (FLASH_BUS_WIDTH >= 16)
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#define ERASE_ADDR1 0x0555
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#define ERASE_ADDR2 0x02AA
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#else
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#define ERASE_ADDR1 0x0AAA
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#define ERASE_ADDR2 0x0555
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#endif
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#define ERASE_ADDR3 ERASE_ADDR1
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#define ERASE_ADDR4 ERASE_ADDR1
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#define ERASE_ADDR5 ERASE_ADDR2
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#define ERASE_DATA1 (0x00AA00AA & FLASH_DATA_MASK)
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#define ERASE_DATA2 (0x00550055 & FLASH_DATA_MASK)
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#define ERASE_DATA3 (0x00800080 & FLASH_DATA_MASK)
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#define ERASE_DATA4 ERASE_DATA1
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#define ERASE_DATA5 ERASE_DATA2
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#define ERASE_SECTOR_DATA (0x00300030 & FLASH_DATA_MASK)
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#define ERASE_CHIP_DATA (0x00100010 & FLASH_DATA_MASK)
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#define ERASE_CONFIRM_DATA (0x00800080 & FLASH_DATA_MASK)
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int flash_erase (flash_info_t *info, int s_first, int s_last)
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{
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FDT *addr = (FDT *)(info->start[0]);
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int prot, sect, l_sect, flag;
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ulong start, now, last;
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__asm__ __volatile__ ("sync");
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addr[0] = 0xf0;
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udelay(1000);
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printf("\nflash_erase: first = %d @ 0x%08lx\n", s_first, info->start[s_first] );
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printf(" last = %d @ 0x%08lx\n", s_last , info->start[s_last ] );
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if ((s_first < 0) || (s_first > s_last)) {
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if (info->flash_id == FLASH_UNKNOWN) {
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printf ("- missing\n");
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} else {
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printf ("- no sectors to erase\n");
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}
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return 1;
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}
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if ((info->flash_id == FLASH_UNKNOWN) || (info->flash_id > FLASH_AMD_COMP)) {
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printf ("Can't erase unknown flash type %08lx - aborted\n", info->flash_id);
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return 1;
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}
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prot = 0;
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for (sect=s_first; sect<=s_last; ++sect) {
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if (info->protect[sect]) {
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prot++;
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}
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}
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if (prot) {
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printf ("- Warning: %d protected sectors will not be erased!\n",
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prot);
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} else {
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printf ("\n");
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}
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l_sect = -1;
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|
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/* Disable interrupts which might cause a timeout here */
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flag = disable_interrupts();
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addr[ERASE_ADDR1] = ERASE_DATA1;
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addr[ERASE_ADDR2] = ERASE_DATA2;
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addr[ERASE_ADDR3] = ERASE_DATA3;
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addr[ERASE_ADDR4] = ERASE_DATA4;
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addr[ERASE_ADDR5] = ERASE_DATA5;
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for (sect = s_first; sect <= s_last; sect++) {
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if (info->protect[sect] == 0) {
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addr = (FDT *)(info->start[sect]);
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addr[0] = ERASE_SECTOR_DATA;
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l_sect = sect;
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}
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}
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if (flag)
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enable_interrupts();
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/*
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* We wait for the last triggered sector
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*/
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if (l_sect < 0)
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goto DONE;
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start = get_timer (0);
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last = start;
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addr = (FDT *)(info->start[l_sect]);
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|
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while ((addr[0] & ERASE_CONFIRM_DATA) != ERASE_CONFIRM_DATA) {
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if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
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printf ("Timeout\n");
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return 1;
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}
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/* show that we're waiting */
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if ((now - last) > 1000) { /* every second */
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putc ('.');
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last = now;
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}
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}
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DONE:
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printf (" done\n");
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return 0;
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}
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|
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/*-----------------------------------------------------------------------
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* Copy memory to flash, returns:
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* 0 - OK
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* 1 - write timeout
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* 2 - Flash not erased
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*/
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|
|
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int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
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{
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#define BUFF_INC 4
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ulong cp, wp, data;
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int i, l, rc;
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mvdebug (("+write_buff %p ==> 0x%08lx, count = 0x%08lx\n", src, addr, cnt));
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wp = (addr & ~3); /* get lower word aligned address */
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/*
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* handle unaligned start bytes
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*/
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if ((l = addr - wp) != 0) {
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mvdebug ((" handle unaligned start bytes (cnt = 0x%08lx)\n", cnt));
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data = 0;
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for (i=0, cp=wp; i<l; ++i, ++cp) {
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data = (data << 8) | (*(uchar *)cp);
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}
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for (; i<BUFF_INC && cnt>0; ++i) {
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data = (data << 8) | *src++;
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--cnt;
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++cp;
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}
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for (; cnt==0 && i<BUFF_INC; ++i, ++cp) {
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data = (data << 8) | (*(uchar *)cp);
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}
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if ((rc = write_word(info, wp, data)) != 0) {
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return (rc);
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}
|
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wp += BUFF_INC;
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}
|
|
|
|
/*
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* handle (half)word aligned part
|
|
*/
|
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mvdebug ((" handle word aligned part (cnt = 0x%08lx)\n", cnt));
|
|
while (cnt >= BUFF_INC) {
|
|
data = 0;
|
|
for (i=0; i<BUFF_INC; ++i) {
|
|
data = (data << 8) | *src++;
|
|
}
|
|
if ((rc = write_word(info, wp, data)) != 0) {
|
|
return (rc);
|
|
}
|
|
wp += BUFF_INC;
|
|
cnt -= BUFF_INC;
|
|
}
|
|
|
|
if (cnt == 0) {
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* handle unaligned tail bytes
|
|
*/
|
|
mvdebug ((" handle unaligned tail bytes (cnt = 0x%08lx)\n", cnt));
|
|
data = 0;
|
|
for (i=0, cp=wp; i<BUFF_INC && cnt>0; ++i, ++cp) {
|
|
data = (data << 8) | *src++;
|
|
--cnt;
|
|
}
|
|
for (; i<BUFF_INC; ++i, ++cp) {
|
|
data = (data << 8) | (*(uchar *)cp);
|
|
}
|
|
|
|
return (write_word(info, wp, data));
|
|
}
|
|
|
|
#if (FLASH_BUS_WIDTH >= 16)
|
|
#define WRITE_ADDR1 0x0555
|
|
#define WRITE_ADDR2 0x02AA
|
|
#else
|
|
#define WRITE_ADDR1 0x0AAA
|
|
#define WRITE_ADDR2 0x0555
|
|
#define WRITE_ADDR3 WRITE_ADDR1
|
|
#endif
|
|
|
|
#define WRITE_DATA1 (0x00AA00AA & FLASH_DATA_MASK)
|
|
#define WRITE_DATA2 (0x00550055 & FLASH_DATA_MASK)
|
|
#define WRITE_DATA3 (0x00A000A0 & FLASH_DATA_MASK)
|
|
|
|
#define WRITE_CONFIRM_DATA ERASE_CONFIRM_DATA
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Write a byte to Flash, returns:
|
|
* 0 - OK
|
|
* 1 - write timeout
|
|
* 2 - Flash not erased
|
|
*/
|
|
static int write_char (flash_info_t *info, ulong dest, uchar data)
|
|
{
|
|
vu_char *addr = (vu_char *)(info->start[0]);
|
|
ulong start;
|
|
int flag;
|
|
|
|
/* Check if Flash is (sufficiently) erased */
|
|
if ((*((vu_char *)dest) & data) != data) {
|
|
printf(" *** ERROR: Flash not erased !\n");
|
|
return (2);
|
|
}
|
|
flag = disable_interrupts();
|
|
|
|
addr[WRITE_ADDR1] = WRITE_DATA1;
|
|
addr[WRITE_ADDR2] = WRITE_DATA2;
|
|
addr[WRITE_ADDR3] = WRITE_DATA3;
|
|
*((vu_char *)dest) = data;
|
|
|
|
if (flag)
|
|
enable_interrupts();
|
|
|
|
/* data polling for D7 */
|
|
start = get_timer (0);
|
|
addr = (vu_char *)dest;
|
|
while (( (*addr) & WRITE_CONFIRM_DATA) != (data & WRITE_CONFIRM_DATA)) {
|
|
if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
|
|
printf(" *** ERROR: Flash write timeout !");
|
|
return (1);
|
|
}
|
|
}
|
|
mvdebug (("-write_byte\n"));
|
|
return (0);
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* 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)
|
|
{
|
|
int i,
|
|
result = 0;
|
|
|
|
mvdebug (("+write_word : 0x%08lx @ 0x%08lx\n", data, dest));
|
|
for ( i=0; (i < 4) && (result == 0); i++, dest+=1 )
|
|
result = write_char (info, dest, (data >> (8*(3-i))) & 0xff );
|
|
mvdebug (("-write_word\n"));
|
|
return result;
|
|
}
|
|
/*---------------------------------------------------------------- */
|