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@@ -1,475 +0,0 @@
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-/*
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- * (C) Copyright 2006 Embedded Artists AB <www.embeddedartists.com>
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- *
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- * (C) Copyright 2007 Gary Jennejohn garyj@denx.de
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- * Modified to use the routines in arch/arm/cpu/arm720t/lpc2292/flash.c.
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- * Heavily modified to support the SMN42 board from Siemens
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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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-#include <asm/byteorder.h>
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-#include <asm/arch/hardware.h>
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-
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-static unsigned long flash_addr_table[CONFIG_SYS_MAX_FLASH_BANKS] = CONFIG_SYS_FLASH_BANKS_LIST;
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-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
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-
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-extern int lpc2292_copy_buffer_to_flash(flash_info_t *, ulong);
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-extern int lpc2292_flash_erase(flash_info_t *, int, int);
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-extern int lpc2292_write_buff (flash_info_t *, uchar *, ulong, ulong);
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-static unsigned long ext_flash_init(void);
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-static int ext_flash_erase(flash_info_t *, int, int);
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-static int ext_write_buff(flash_info_t *, uchar *, ulong, ulong);
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-
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-/*-----------------------------------------------------------------------
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- */
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-
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-ulong flash_init (void)
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-{
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- int j, k;
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- ulong size = 0;
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- ulong flashbase = 0;
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-
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- flash_info[0].flash_id = PHILIPS_LPC2292;
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- flash_info[0].size = 0x003E000; /* 256 - 8 KB */
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- flash_info[0].sector_count = 17;
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- memset (flash_info[0].protect, 0, 17);
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- flashbase = 0x00000000;
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- for (j = 0, k = 0; j < 8; j++, k++) {
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- flash_info[0].start[k] = flashbase;
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- flashbase += 0x00002000;
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- }
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- for (j = 0; j < 2; j++, k++) {
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- flash_info[0].start[k] = flashbase;
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- flashbase += 0x00010000;
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- }
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- for (j = 0; j < 7; j++, k++) {
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- flash_info[0].start[k] = flashbase;
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- flashbase += 0x00002000;
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- }
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- size += flash_info[0].size;
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-
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- /* Protect monitor and environment sectors */
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- flash_protect (FLAG_PROTECT_SET,
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- 0x0,
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- 0x0 + monitor_flash_len - 1,
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- &flash_info[0]);
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-
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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_info[0]);
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-
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- size += ext_flash_init();
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-
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- return size;
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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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- int erased = 0;
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- unsigned long j;
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- unsigned long count;
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- unsigned char *p;
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-
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- switch (info->flash_id & FLASH_VENDMASK) {
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- case (PHILIPS_LPC2292 & FLASH_VENDMASK):
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- printf("Philips: ");
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- break;
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- case FLASH_MAN_AMD:
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- printf("AMD: ");
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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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-
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- switch (info->flash_id & FLASH_TYPEMASK) {
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- case (PHILIPS_LPC2292 & FLASH_TYPEMASK):
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- printf("LPC2292 internal flash\n");
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- break;
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- case FLASH_S29GL128N:
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- printf ("S29GL128N (128 Mbit, 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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- return;
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- }
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-
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- printf (" Size: %ld KB in %d Sectors\n",
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- info->size >> 10, info->sector_count);
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-
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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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- }
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- if (i < (info->sector_count - 1)) {
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- count = info->start[i+1] - info->start[i];
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- }
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- else {
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- count = info->start[0] + info->size - info->start[i];
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- }
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- p = (unsigned char*)(info->start[i]);
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- erased = 1;
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- for (j = 0; j < count; j++) {
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- if (*p != 0xFF) {
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- erased = 0;
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- break;
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- }
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- p++;
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- }
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- printf (" %08lX%s%s", info->start[i], info->protect[i] ? " RO" : " ",
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- erased ? " E" : " ");
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- }
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- printf ("\n");
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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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- switch (info->flash_id & FLASH_TYPEMASK) {
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- case (PHILIPS_LPC2292 & FLASH_TYPEMASK):
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- return lpc2292_flash_erase(info, s_first, s_last);
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- case FLASH_S29GL128N:
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- return ext_flash_erase(info, s_first, s_last);
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- default:
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- return ERR_PROTECTED;
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- }
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- return ERR_PROTECTED;
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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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- switch (info->flash_id & FLASH_TYPEMASK) {
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- case (PHILIPS_LPC2292 & FLASH_TYPEMASK):
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- return lpc2292_write_buff(info, src, addr, cnt);
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- case FLASH_S29GL128N:
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- return ext_write_buff(info, src, addr, cnt);
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- default:
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- return ERR_PROG_ERROR;
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- }
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- return ERR_PROG_ERROR;
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-}
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-
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-/*--------------------------------------------------------------------------
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- * From here on is code for the external S29GL128N taken from cam5200_flash.c
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- */
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-
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-#define CONFIG_SYS_FLASH_WORD_SIZE unsigned short
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-
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-static int wait_for_DQ7_32(flash_info_t * info, int sect)
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-{
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- ulong start, now, last;
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- volatile CONFIG_SYS_FLASH_WORD_SIZE *addr =
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- (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]);
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-
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- start = get_timer(0);
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- last = start;
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- while ((addr[0] & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) !=
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- (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) {
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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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- return 0;
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-}
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-
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-int ext_flash_erase(flash_info_t * info, int s_first, int s_last)
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-{
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- volatile CONFIG_SYS_FLASH_WORD_SIZE *addr = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[0]);
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- volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2;
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- int flag, prot, sect, l_sect, ret;
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-
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- ret = 0;
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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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- return 1;
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- }
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-
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- if (info->flash_id == FLASH_UNKNOWN) {
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- printf("Can't erase unknown flash type - aborted\n");
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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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- if (prot)
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- printf("- Warning: %d protected sectors will not be erased!", prot);
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-
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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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-
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- /* Start erase on unprotected sectors */
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- for (sect = s_first; sect <= s_last; sect++) {
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- if (info->protect[sect] == 0) { /* not protected */
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- addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[sect]);
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-
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- addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
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- addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
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- addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080;
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- addr[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
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- addr[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
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- addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00300030; /* sector erase */
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-
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- l_sect = sect;
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- /*
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- * Wait for each sector to complete, it's more
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- * reliable. According to AMD Spec, you must
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- * issue all erase commands within a specified
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- * timeout. This has been seen to fail, especially
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- * if printf()s are included (for debug)!!
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- */
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- ret = wait_for_DQ7_32(info, sect);
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- if (ret) {
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- ret = ERR_PROTECTED;
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- break;
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- }
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- }
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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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- /* wait at least 80us - let's wait 1 ms */
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- udelay(1000);
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-
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- /* reset to read mode */
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- addr = (CONFIG_SYS_FLASH_WORD_SIZE *) info->start[0];
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- addr[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00F000F0; /* reset bank */
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-
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- if (ret)
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- printf(" error\n");
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- else
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- printf(" done\n");
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- return ret;
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-}
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-
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-static ulong flash_get_size(vu_long * addr, flash_info_t * info)
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-{
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- short i;
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- CONFIG_SYS_FLASH_WORD_SIZE value;
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- ulong base = (ulong) addr;
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- volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) addr;
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-
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- /* Write auto select command: read Manufacturer ID */
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- addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
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- addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
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- addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00900090;
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- udelay(1000);
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-
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- value = addr2[0];
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-
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- switch (value) {
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- case (CONFIG_SYS_FLASH_WORD_SIZE) AMD_MANUFACT:
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- info->flash_id = FLASH_MAN_AMD;
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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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-
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- value = addr2[1]; /* device ID */
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-
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- switch (value) {
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- case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_MIRROR:
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- value = addr2[14];
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- switch(value) {
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- case (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_GL128N_2:
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- value = addr2[15];
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- if (value != (CONFIG_SYS_FLASH_WORD_SIZE)AMD_ID_GL128N_3) {
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- info->flash_id = FLASH_UNKNOWN;
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- } else {
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- info->flash_id += FLASH_S29GL128N;
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- info->sector_count = 128;
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- info->size = 0x01000000;
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- }
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- break;
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- default:
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- info->flash_id = FLASH_UNKNOWN;
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- return(0);
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- }
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- break;
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-
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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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-
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- /* set up sector start address table */
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- for (i = 0; i < info->sector_count; i++)
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- info->start[i] = base + (i * 0x00020000);
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-
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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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- addr2 = (volatile CONFIG_SYS_FLASH_WORD_SIZE *)(info->start[i]);
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-
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- info->protect[i] = addr2[2] & 1;
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- }
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-
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- /* issue bank reset to return to read mode */
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- addr2[0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00F000F0;
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-
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- return (info->size);
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-}
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-
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-static unsigned long ext_flash_init(void)
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-{
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- unsigned long total_b = 0;
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- unsigned long size_b[CONFIG_SYS_MAX_FLASH_BANKS];
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- int i;
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-
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- /* Init: no FLASHes known */
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- for (i = 1; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
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- flash_info[i].flash_id = FLASH_UNKNOWN;
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- flash_info[i].sector_count = -1;
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- flash_info[i].size = 0;
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-
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- /* call flash_get_size() to initialize sector address */
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- size_b[i] = flash_get_size((vu_long *) flash_addr_table[i],
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- &flash_info[i]);
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-
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- flash_info[i].size = size_b[i];
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-
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- if (flash_info[i].flash_id == FLASH_UNKNOWN) {
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- printf("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n",
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- i+1, size_b[i], size_b[i] << 20);
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- flash_info[i].sector_count = -1;
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- flash_info[i].size = 0;
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- }
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-
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- total_b += flash_info[i].size;
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- }
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-
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- return total_b;
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-}
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-
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-static int write_word(flash_info_t * info, ulong dest, ushort data)
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-{
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- volatile CONFIG_SYS_FLASH_WORD_SIZE *addr2 = (CONFIG_SYS_FLASH_WORD_SIZE *) (info->start[0]);
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- volatile CONFIG_SYS_FLASH_WORD_SIZE *dest2 = (CONFIG_SYS_FLASH_WORD_SIZE *) dest;
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- volatile CONFIG_SYS_FLASH_WORD_SIZE *data2 = (CONFIG_SYS_FLASH_WORD_SIZE *) &data;
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- ulong start;
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- int flag;
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-
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- /* Check if Flash is (sufficiently) erased */
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|
|
- if ((*dest2 & *data2) != *data2) {
|
|
|
- return (2);
|
|
|
- }
|
|
|
-
|
|
|
- /* Disable interrupts which might cause a timeout here */
|
|
|
- flag = disable_interrupts();
|
|
|
-
|
|
|
- addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00AA00AA;
|
|
|
- addr2[CONFIG_SYS_FLASH_ADDR1] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00550055;
|
|
|
- addr2[CONFIG_SYS_FLASH_ADDR0] = (CONFIG_SYS_FLASH_WORD_SIZE) 0x00A000A0;
|
|
|
- *dest2 = *data2;
|
|
|
-
|
|
|
- /* re-enable interrupts if necessary */
|
|
|
- if (flag)
|
|
|
- enable_interrupts();
|
|
|
-
|
|
|
- /* data polling for D7 */
|
|
|
- start = get_timer(0);
|
|
|
- while ((*dest2 & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080) !=
|
|
|
- (*data2 & (CONFIG_SYS_FLASH_WORD_SIZE) 0x00800080)) {
|
|
|
-
|
|
|
- if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
|
|
|
- printf("WRITE_TOUT\n");
|
|
|
- return (1);
|
|
|
- }
|
|
|
- }
|
|
|
- return (0);
|
|
|
-}
|
|
|
-
|
|
|
-/*-----------------------------------------------------------------------
|
|
|
- * This is taken from the original flash.c for the LPC2292 SODIMM board
|
|
|
- * and modified to suit.
|
|
|
- */
|
|
|
-
|
|
|
-int ext_write_buff(flash_info_t * info, uchar * src, ulong addr, ulong cnt)
|
|
|
-{
|
|
|
- ushort tmp;
|
|
|
- ulong i;
|
|
|
- uchar* src_org;
|
|
|
- uchar* dst_org;
|
|
|
- ulong cnt_org = cnt;
|
|
|
- int ret = ERR_OK;
|
|
|
-
|
|
|
- src_org = src;
|
|
|
- dst_org = (uchar*)addr;
|
|
|
-
|
|
|
- if (addr & 1) { /* if odd address */
|
|
|
- tmp = *((uchar*)(addr - 1)); /* little endian */
|
|
|
- tmp |= (*src << 8);
|
|
|
- if (write_word(info, addr - 1, tmp))
|
|
|
- return ERR_PROG_ERROR;
|
|
|
- addr += 1;
|
|
|
- cnt -= 1;
|
|
|
- src++;
|
|
|
- }
|
|
|
- while (cnt > 1) {
|
|
|
- tmp = ((*(src+1)) << 8) + (*src); /* little endian */
|
|
|
- if (write_word(info, addr, tmp))
|
|
|
- return ERR_PROG_ERROR;
|
|
|
- addr += 2;
|
|
|
- src += 2;
|
|
|
- cnt -= 2;
|
|
|
- }
|
|
|
- if (cnt > 0) {
|
|
|
- tmp = (*((uchar*)(addr + 1))) << 8;
|
|
|
- tmp |= *src;
|
|
|
- if (write_word(info, addr, tmp))
|
|
|
- return ERR_PROG_ERROR;
|
|
|
- }
|
|
|
-
|
|
|
- for (i = 0; i < cnt_org; i++) {
|
|
|
- if (*dst_org != *src_org) {
|
|
|
- printf("Write failed. Byte %lX differs\n", i);
|
|
|
- ret = ERR_PROG_ERROR;
|
|
|
- break;
|
|
|
- }
|
|
|
- dst_org++;
|
|
|
- src_org++;
|
|
|
- }
|
|
|
-
|
|
|
- return ret;
|
|
|
-}
|
Wolfgang Denk