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@@ -1,469 +0,0 @@
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-/*
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- * (C) Copyright 2003-2004
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- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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- *
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- * (C) Copyright 2004
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- * Martin Krause, TQ-Systems GmbH, martin.krause@tqs.de
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- *
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- * Modified for the CMC PU2 by (C) Copyright 2004 Gary Jennejohn
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- * garyj@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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-
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-#include <common.h>
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-
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-#ifndef CONFIG_ENV_ADDR
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-#define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET)
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-#endif
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-
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-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
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-
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-#define FLASH_CYCLE1 0x0555
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-#define FLASH_CYCLE2 0x02AA
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-
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-/*-----------------------------------------------------------------------
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- * Functions
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- */
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-static ulong flash_get_size(vu_short *addr, flash_info_t *info);
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-static void flash_reset(flash_info_t *info);
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-static int write_word_amd(flash_info_t *info, vu_short *dest, ushort data);
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-static flash_info_t *flash_get_info(ulong base);
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-
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-/*-----------------------------------------------------------------------
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- * flash_init()
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- *
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- * sets up flash_info and returns size of FLASH (bytes)
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- */
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-unsigned long flash_init (void)
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-{
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- unsigned long size = 0;
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- ulong flashbase = CONFIG_SYS_FLASH_BASE;
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-
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- /* Init: no FLASHes known */
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- memset(&flash_info[0], 0, sizeof(flash_info_t));
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-
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- flash_info[0].size = flash_get_size((vu_short *)flashbase, &flash_info[0]);
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-
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- size = flash_info[0].size;
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-
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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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- 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_get_info(CONFIG_SYS_MONITOR_BASE));
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-#endif
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-
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-#ifdef CONFIG_ENV_IS_IN_FLASH
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- /* ENV protection ON by default */
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- flash_protect(FLAG_PROTECT_SET,
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- CONFIG_ENV_ADDR,
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- CONFIG_ENV_ADDR+CONFIG_ENV_SIZE-1,
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- flash_get_info(CONFIG_ENV_ADDR));
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-#endif
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-
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- return size ? size : 1;
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-}
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-
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-/*-----------------------------------------------------------------------
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- */
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-static void flash_reset(flash_info_t *info)
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-{
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- vu_short *base = (vu_short *)(info->start[0]);
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-
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- /* Put FLASH back in read mode */
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- if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL)
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- *base = 0x00FF; /* Intel Read Mode */
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- else if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_AMD)
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- *base = 0x00F0; /* AMD Read Mode */
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-}
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-
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-/*-----------------------------------------------------------------------
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- */
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-
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-static flash_info_t *flash_get_info(ulong base)
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-{
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- int i;
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- flash_info_t * info;
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-
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- info = NULL;
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- for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i ++) {
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- info = & flash_info[i];
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- if (info->size && info->start[0] <= base &&
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- base <= info->start[0] + info->size - 1)
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- break;
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- }
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-
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- return i == CONFIG_SYS_MAX_FLASH_BANKS ? 0 : info;
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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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-
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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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-
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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_BM: printf ("BRIGHT MICRO "); break;
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- case FLASH_MAN_FUJ: printf ("FUJITSU "); break;
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- case FLASH_MAN_SST: printf ("SST "); break;
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- case FLASH_MAN_STM: printf ("STM "); break;
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- case FLASH_MAN_INTEL: printf ("INTEL "); break;
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- default: printf ("Unknown Vendor "); break;
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- }
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-
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- switch (info->flash_id & FLASH_TYPEMASK) {
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- case FLASH_S29GL064M:
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- printf ("S29GL064M-R6 (64Mbit, uniform sector size)\n");
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- break;
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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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-
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- printf (" Size: %ld MB in %d Sectors\n",
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- info->size >> 20,
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- info->sector_count);
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-
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- printf (" Sector Start Addresses:");
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-
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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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- }
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- printf (" %08lX%s",
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- info->start[i],
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- 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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-
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-ulong flash_get_size (vu_short *addr, flash_info_t *info)
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-{
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- int i;
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- ushort value;
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- ulong base = (ulong)addr;
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-
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- /* Write auto select command sequence */
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- addr[FLASH_CYCLE1] = 0x00AA; /* for AMD, Intel ignores this */
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- addr[FLASH_CYCLE2] = 0x0055; /* for AMD, Intel ignores this */
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- addr[FLASH_CYCLE1] = 0x0090; /* selects Intel or AMD */
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-
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- /* read Manufacturer ID */
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- udelay(100);
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- value = addr[0];
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- debug ("Manufacturer ID: %04X\n", value);
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-
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- switch (value) {
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-
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- case (AMD_MANUFACT & 0xFFFF):
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- debug ("Manufacturer: AMD (Spansion)\n");
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- info->flash_id = FLASH_MAN_AMD;
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- break;
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-
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- case (INTEL_MANUFACT & 0xFFFF):
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- debug ("Manufacturer: Intel (not supported yet)\n");
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- info->flash_id = FLASH_MAN_INTEL;
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- break;
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-
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- default:
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- printf ("Unknown Manufacturer ID: %04X\n", value);
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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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- goto out;
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- }
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-
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- value = addr[1];
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- debug ("Device ID: %04X\n", value);
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-
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- switch (addr[1]) {
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-
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- case (AMD_ID_MIRROR & 0xFFFF):
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- debug ("Mirror Bit flash: addr[14] = %08X addr[15] = %08X\n",
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- addr[14], addr[15]);
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-
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- switch(addr[14]) {
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- case (AMD_ID_GL064M_2 & 0xFFFF):
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- if (addr[15] != (AMD_ID_GL064M_3 & 0xffff)) {
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- printf ("Chip: S29GLxxxM -> unknown\n");
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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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- } else {
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- debug ("Chip: S29GL064M-R6\n");
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- info->flash_id += FLASH_S29GL064M;
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- info->sector_count = 128;
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- info->size = 0x00800000;
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- for (i = 0; i < info->sector_count; i++) {
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- info->start[i] = base;
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- base += 0x10000;
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- }
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- }
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- break; /* => 16 MB */
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- default:
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- printf ("Chip: *** unknown ***\n");
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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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- break;
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- }
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- break;
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-
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- default:
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- printf ("Unknown Device ID: %04X\n", value);
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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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- break;
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- }
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-
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-out:
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- /* Put FLASH back in read mode */
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- flash_reset(info);
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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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- */
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-
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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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- vu_short *addr = (vu_short *)(info->start[0]);
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- int flag, prot, sect, ssect, l_sect;
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- ulong now, last, start;
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-
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- debug ("flash_erase: first: %d last: %d\n", s_first, s_last);
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-
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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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-
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- if ((info->flash_id == FLASH_UNKNOWN) ||
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- (info->flash_id > FLASH_AMD_COMP)) {
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- printf ("Can't erase unknown flash type %08lx - aborted\n",
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- info->flash_id);
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- return 1;
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- }
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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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-
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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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-
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- /* Disable interrupts which might cause a timeout here */
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- flag = disable_interrupts();
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-
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- /*
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- * Start erase on unprotected sectors.
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- * Since the flash can erase multiple sectors with one command
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- * we take advantage of that by doing the erase in chunks of
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- * 3 sectors.
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- */
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- for (sect = s_first; sect <= s_last; ) {
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- l_sect = -1;
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-
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- addr[FLASH_CYCLE1] = 0x00AA;
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- addr[FLASH_CYCLE2] = 0x0055;
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- addr[FLASH_CYCLE1] = 0x0080;
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- addr[FLASH_CYCLE1] = 0x00AA;
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- addr[FLASH_CYCLE2] = 0x0055;
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-
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- /* do the erase in chunks of at most 3 sectors */
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- for (ssect = 0; ssect < 3; ssect++) {
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- if ((sect + ssect) > s_last)
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- break;
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- if (info->protect[sect + ssect] == 0) { /* not protected */
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- addr = (vu_short *)(info->start[sect + ssect]);
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- addr[0] = 0x0030;
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- l_sect = sect + ssect;
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- }
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- }
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- /* wait at least 80us - let's wait 1 ms */
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- udelay (1000);
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-
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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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-
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- start = get_timer(0);
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- last = 0;
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- addr = (vu_short *)(info->start[l_sect]);
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- while ((addr[0] & 0x0080) != 0x0080) {
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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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- addr = (vu_short *)info->start[0];
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- addr[0] = 0x00F0; /* reset bank */
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- sect += ssect;
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- }
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-
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- /* re-enable interrupts if necessary */
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- if (flag)
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- enable_interrupts();
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-
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-DONE:
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- /* reset to read mode */
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- addr = (vu_short *)info->start[0];
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- addr[0] = 0x00F0; /* reset bank */
|
|
|
|
-
|
|
|
|
- printf (" done\n");
|
|
|
|
- return 0;
|
|
|
|
-}
|
|
|
|
-
|
|
|
|
-/*-----------------------------------------------------------------------
|
|
|
|
- * 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)
|
|
|
|
-{
|
|
|
|
- ulong wp, data;
|
|
|
|
- int rc;
|
|
|
|
-
|
|
|
|
- if (addr & 1) {
|
|
|
|
- printf ("unaligned destination not supported\n");
|
|
|
|
- return ERR_ALIGN;
|
|
|
|
- };
|
|
|
|
-
|
|
|
|
- if ((int) src & 1) {
|
|
|
|
- printf ("unaligned source not supported\n");
|
|
|
|
- return ERR_ALIGN;
|
|
|
|
- };
|
|
|
|
-
|
|
|
|
- wp = addr;
|
|
|
|
-
|
|
|
|
- while (cnt >= 2) {
|
|
|
|
- data = *((vu_short *)src);
|
|
|
|
- if ((rc = write_word_amd(info, (vu_short *)wp, data)) != 0) {
|
|
|
|
-printf ("write_buff 1: write_word_amd() rc=%d\n", rc);
|
|
|
|
- return (rc);
|
|
|
|
- }
|
|
|
|
- src += 2;
|
|
|
|
- wp += 2;
|
|
|
|
- cnt -= 2;
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- if (cnt == 0) {
|
|
|
|
- return (ERR_OK);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- if (cnt == 1) {
|
|
|
|
- data = (*((volatile u8 *) src)) | (*((volatile u8 *) (wp + 1)) << 8);
|
|
|
|
- if ((rc = write_word_amd(info, (vu_short *)wp, data)) != 0) {
|
|
|
|
-printf ("write_buff 1: write_word_amd() rc=%d\n", rc);
|
|
|
|
- return (rc);
|
|
|
|
- }
|
|
|
|
- src += 1;
|
|
|
|
- wp += 1;
|
|
|
|
- cnt -= 1;
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- return ERR_OK;
|
|
|
|
-}
|
|
|
|
-
|
|
|
|
-/*-----------------------------------------------------------------------
|
|
|
|
- * Write a word to Flash for AMD FLASH
|
|
|
|
- * A word is 16 or 32 bits, whichever the bus width of the flash bank
|
|
|
|
- * (not an individual chip) is.
|
|
|
|
- *
|
|
|
|
- * returns:
|
|
|
|
- * 0 - OK
|
|
|
|
- * 1 - write timeout
|
|
|
|
- * 2 - Flash not erased
|
|
|
|
- */
|
|
|
|
-static int write_word_amd (flash_info_t *info, vu_short *dest, ushort data)
|
|
|
|
-{
|
|
|
|
- int flag;
|
|
|
|
- vu_short *base; /* first address in flash bank */
|
|
|
|
- ulong start;
|
|
|
|
-
|
|
|
|
- /* Check if Flash is (sufficiently) erased */
|
|
|
|
- if ((*dest & data) != data) {
|
|
|
|
- return (2);
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- base = (vu_short *)(info->start[0]);
|
|
|
|
-
|
|
|
|
- /* Disable interrupts which might cause a timeout here */
|
|
|
|
- flag = disable_interrupts();
|
|
|
|
-
|
|
|
|
- base[FLASH_CYCLE1] = 0x00AA; /* unlock */
|
|
|
|
- base[FLASH_CYCLE2] = 0x0055; /* unlock */
|
|
|
|
- base[FLASH_CYCLE1] = 0x00A0; /* selects program mode */
|
|
|
|
-
|
|
|
|
- *dest = data; /* start programming the data */
|
|
|
|
-
|
|
|
|
- /* re-enable interrupts if necessary */
|
|
|
|
- if (flag)
|
|
|
|
- enable_interrupts();
|
|
|
|
-
|
|
|
|
- start = get_timer(0);
|
|
|
|
-
|
|
|
|
- /* data polling for D7 */
|
|
|
|
- while ((*dest & 0x0080) != (data & 0x0080)) {
|
|
|
|
- if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
|
|
|
|
- *dest = 0x00F0; /* reset bank */
|
|
|
|
- return (1);
|
|
|
|
- }
|
|
|
|
- }
|
|
|
|
- return (0);
|
|
|
|
-}
|
|
|