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@@ -0,0 +1,1108 @@
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+/*
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+ * (C) Copyright 2004-2005
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+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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+ *
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+ * (C) Copyright 2002 Jun Gu <jung@artesyncp.com>
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+ * Add support for Am29F016D and dynamic switch setting.
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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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+/*
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+ * Modified 4/5/2001
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+ * Wait for completion of each sector erase command issued
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+ * 4/5/2001
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+ * Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com
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+ */
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+
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+#include <common.h>
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+#include <ppc4xx.h>
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+#include <asm/processor.h>
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+
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+#ifdef DEBUG
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+#define DEBUGF(x...) printf(x)
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+#else
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+#define DEBUGF(x...)
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+#endif /* DEBUG */
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+
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+flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
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+
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+/*
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+ * Mark big flash bank (16 bit instead of 8 bit access) in address with bit 0
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+ */
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+static unsigned long flash_addr_table[][CFG_MAX_FLASH_BANKS] = {
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+ {0xffc00001}, /* 0:boot from big flash */
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+};
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+
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+/*
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+ * include common flash code (for amcc boards)
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+ */
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+/*-----------------------------------------------------------------------
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+ * Functions
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+ */
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+static int write_word(flash_info_t * info, ulong dest, ulong data);
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+#ifdef CFG_FLASH_2ND_16BIT_DEV
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+static int write_word_1(flash_info_t * info, ulong dest, ulong data);
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+static int write_word_2(flash_info_t * info, ulong dest, ulong data);
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+static int flash_erase_1(flash_info_t * info, int s_first, int s_last);
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+static int flash_erase_2(flash_info_t * info, int s_first, int s_last);
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+static ulong flash_get_size_1(vu_long * addr, flash_info_t * info);
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+static ulong flash_get_size_2(vu_long * addr, flash_info_t * info);
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+#endif
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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 k;
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+ int size;
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+ int erased;
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+ volatile unsigned long *flash;
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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:
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+ printf("AMD ");
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+ break;
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+ case FLASH_MAN_STM:
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+ printf("STM ");
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+ break;
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+ case FLASH_MAN_FUJ:
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+ printf("FUJITSU ");
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+ break;
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+ case FLASH_MAN_SST:
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+ printf("SST ");
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+ break;
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+ case FLASH_MAN_MX:
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+ printf("MIXC ");
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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 FLASH_AM040:
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+ printf("AM29F040 (512 Kbit, uniform sector size)\n");
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+ break;
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+ case FLASH_AM400B:
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+ printf("AM29LV400B (4 Mbit, bottom boot sect)\n");
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+ break;
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+ case FLASH_AM400T:
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+ printf("AM29LV400T (4 Mbit, top boot sector)\n");
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+ break;
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+ case FLASH_AM800B:
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+ printf("AM29LV800B (8 Mbit, bottom boot sect)\n");
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+ break;
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+ case FLASH_AM800T:
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+ printf("AM29LV800T (8 Mbit, top boot sector)\n");
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+ break;
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+ case FLASH_AMD016:
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+ printf("AM29F016D (16 Mbit, uniform sector size)\n");
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+ break;
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+ case FLASH_AM160B:
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+ printf("AM29LV160B (16 Mbit, bottom boot sect)\n");
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+ break;
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+ case FLASH_AM160T:
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+ printf("AM29LV160T (16 Mbit, top boot sector)\n");
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+ break;
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+ case FLASH_AM320B:
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+ printf("AM29LV320B (32 Mbit, bottom boot sect)\n");
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+ break;
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+ case FLASH_AM320T:
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+ printf("AM29LV320T (32 Mbit, top boot sector)\n");
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+ break;
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+ case FLASH_AM033C:
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+ printf("AM29LV033C (32 Mbit, top boot sector)\n");
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+ break;
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+ case FLASH_SST800A:
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+ printf("SST39LF/VF800 (8 Mbit, uniform sector size)\n");
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+ break;
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+ case FLASH_SST160A:
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+ printf("SST39LF/VF160 (16 Mbit, uniform sector size)\n");
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+ break;
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+ case FLASH_STMW320DT:
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+ printf ("M29W320DT (32 M, top sector)\n");
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+ break;
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+ case FLASH_MXLV320T:
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+ printf ("MXLV320T (32 Mbit, top sector)\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 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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+ /*
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+ * Check if whole sector is erased
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+ */
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+ if (i != (info->sector_count - 1))
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+ size = info->start[i + 1] - info->start[i];
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+ else
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+ size = info->start[0] + info->size - info->start[i];
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+ erased = 1;
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+ flash = (volatile unsigned long *)info->start[i];
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+ size = size >> 2; /* divide by 4 for longword access */
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+ for (k = 0; k < size; k++) {
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+ if (*flash++ != 0xffffffff) {
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+ erased = 0;
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+ break;
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+ }
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+ }
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+
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+ if ((i % 5) == 0)
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+ printf("\n ");
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+ printf(" %08lX%s%s",
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+ info->start[i],
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+ erased ? " E" : " ", 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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+ * The following code cannot be run from FLASH!
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+ */
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+#ifdef CFG_FLASH_2ND_16BIT_DEV
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+static ulong flash_get_size(vu_long * addr, flash_info_t * info)
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+{
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+ /* bit 0 used for big flash marking */
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+ if ((ulong)addr & 0x1) {
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+ return flash_get_size_2((vu_long *)((ulong)addr & 0xfffffffe), info);
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+ } else {
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+ return flash_get_size_1(addr, info);
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+ }
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+}
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+
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+static ulong flash_get_size_1(vu_long * addr, flash_info_t * info)
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+#else
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+static ulong flash_get_size(vu_long * addr, flash_info_t * info)
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+#endif
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+{
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+ short i;
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+ CFG_FLASH_WORD_SIZE value;
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+ ulong base = (ulong) addr;
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+ volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *) addr;
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+
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+ DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr);
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+
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+ /* Write auto select command: read Manufacturer ID */
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+ addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
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+ addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
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+ addr2[CFG_FLASH_ADDR0] = (CFG_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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+ DEBUGF("FLASH MANUFACT: %x\n", value);
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+
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+ switch (value) {
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+ case (CFG_FLASH_WORD_SIZE) AMD_MANUFACT:
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+ info->flash_id = FLASH_MAN_AMD;
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+ break;
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+ case (CFG_FLASH_WORD_SIZE) FUJ_MANUFACT:
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+ info->flash_id = FLASH_MAN_FUJ;
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+ break;
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+ case (CFG_FLASH_WORD_SIZE) SST_MANUFACT:
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+ info->flash_id = FLASH_MAN_SST;
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+ break;
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+ case (CFG_FLASH_WORD_SIZE) STM_MANUFACT:
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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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+
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+ value = addr2[1]; /* device ID */
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+ DEBUGF("\nFLASH DEVICEID: %x\n", value);
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+
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+ switch (value) {
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+ case (CFG_FLASH_WORD_SIZE) AMD_ID_LV040B:
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+ info->flash_id += FLASH_AM040;
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+ info->sector_count = 8;
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+ info->size = 0x0080000; /* => 512 ko */
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+ break;
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+
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+ case (CFG_FLASH_WORD_SIZE) AMD_ID_F040B:
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+ info->flash_id += FLASH_AM040;
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+ info->sector_count = 8;
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+ info->size = 0x0080000; /* => 512 ko */
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+ break;
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+
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+ case (CFG_FLASH_WORD_SIZE) STM_ID_M29W040B:
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+ info->flash_id += FLASH_AM040;
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+ info->sector_count = 8;
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+ info->size = 0x0080000; /* => 512 ko */
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+ break;
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+
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+ case (CFG_FLASH_WORD_SIZE) AMD_ID_F016D:
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+ info->flash_id += FLASH_AMD016;
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+ info->sector_count = 32;
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+ info->size = 0x00200000;
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+ break; /* => 2 MB */
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+
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+ case (CFG_FLASH_WORD_SIZE) AMD_ID_LV033C:
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+ info->flash_id += FLASH_AMDLV033C;
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+ info->sector_count = 64;
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+ info->size = 0x00400000;
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+ break; /* => 4 MB */
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+
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+ case (CFG_FLASH_WORD_SIZE) AMD_ID_LV400T:
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+ info->flash_id += FLASH_AM400T;
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+ info->sector_count = 11;
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+ info->size = 0x00080000;
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+ break; /* => 0.5 MB */
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+
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+ case (CFG_FLASH_WORD_SIZE) AMD_ID_LV400B:
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+ info->flash_id += FLASH_AM400B;
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+ info->sector_count = 11;
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+ info->size = 0x00080000;
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+ break; /* => 0.5 MB */
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+
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+ case (CFG_FLASH_WORD_SIZE) AMD_ID_LV800T:
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+ info->flash_id += FLASH_AM800T;
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+ info->sector_count = 19;
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+ info->size = 0x00100000;
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+ break; /* => 1 MB */
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+
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+ case (CFG_FLASH_WORD_SIZE) AMD_ID_LV800B:
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+ info->flash_id += FLASH_AM800B;
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+ info->sector_count = 19;
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+ info->size = 0x00100000;
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+ break; /* => 1 MB */
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+
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+ case (CFG_FLASH_WORD_SIZE) AMD_ID_LV160T:
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+ info->flash_id += FLASH_AM160T;
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+ info->sector_count = 35;
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+ info->size = 0x00200000;
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+ break; /* => 2 MB */
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+
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+ case (CFG_FLASH_WORD_SIZE) AMD_ID_LV160B:
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+ info->flash_id += FLASH_AM160B;
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+ info->sector_count = 35;
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+ info->size = 0x00200000;
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+ break; /* => 2 MB */
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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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+ if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
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+ ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) ||
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+ ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMD016)) {
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+ for (i = 0; i < info->sector_count; i++)
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+ info->start[i] = base + (i * 0x00010000);
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+ } else {
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+ if (info->flash_id & FLASH_BTYPE) {
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+ /* set sector offsets for bottom boot block type */
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+ info->start[0] = base + 0x00000000;
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+ info->start[1] = base + 0x00004000;
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+ info->start[2] = base + 0x00006000;
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+ info->start[3] = base + 0x00008000;
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+ for (i = 4; i < info->sector_count; i++) {
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+ info->start[i] =
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+ base + (i * 0x00010000) - 0x00030000;
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+ }
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+ } else {
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+ /* set sector offsets for top boot block type */
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+ i = info->sector_count - 1;
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+ info->start[i--] = base + info->size - 0x00004000;
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+ info->start[i--] = base + info->size - 0x00006000;
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+ info->start[i--] = base + info->size - 0x00008000;
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+ for (; i >= 0; i--) {
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+ info->start[i] = base + i * 0x00010000;
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+ }
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /* check for protected sectors */
|
|
|
|
+ for (i = 0; i < info->sector_count; i++) {
|
|
|
|
+ /* read sector protection at sector address, (A7 .. A0) = 0x02 */
|
|
|
|
+ /* D0 = 1 if protected */
|
|
|
|
+ addr2 = (volatile CFG_FLASH_WORD_SIZE *)(info->start[i]);
|
|
|
|
+
|
|
|
|
+ /* For AMD29033C flash we need to resend the command of *
|
|
|
|
+ * reading flash protection for upper 8 Mb of flash */
|
|
|
|
+ if (i == 32) {
|
|
|
|
+ addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
|
|
|
|
+ addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
|
|
|
|
+ addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x90909090;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
|
|
|
|
+ info->protect[i] = 0;
|
|
|
|
+ else
|
|
|
|
+ info->protect[i] = addr2[2] & 1;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /* issue bank reset to return to read mode */
|
|
|
|
+ addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00F000F0;
|
|
|
|
+
|
|
|
|
+ return (info->size);
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static int wait_for_DQ7_1(flash_info_t * info, int sect)
|
|
|
|
+{
|
|
|
|
+ ulong start, now, last;
|
|
|
|
+ volatile CFG_FLASH_WORD_SIZE *addr =
|
|
|
|
+ (CFG_FLASH_WORD_SIZE *) (info->start[sect]);
|
|
|
|
+
|
|
|
|
+ start = get_timer(0);
|
|
|
|
+ last = start;
|
|
|
|
+ while ((addr[0] & (CFG_FLASH_WORD_SIZE) 0x00800080) !=
|
|
|
|
+ (CFG_FLASH_WORD_SIZE) 0x00800080) {
|
|
|
|
+ if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
|
|
|
|
+ printf("Timeout\n");
|
|
|
|
+ return -1;
|
|
|
|
+ }
|
|
|
|
+ /* show that we're waiting */
|
|
|
|
+ if ((now - last) > 1000) { /* every second */
|
|
|
|
+ putc('.');
|
|
|
|
+ last = now;
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ return 0;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+#ifdef CFG_FLASH_2ND_16BIT_DEV
|
|
|
|
+int flash_erase(flash_info_t * info, int s_first, int s_last)
|
|
|
|
+{
|
|
|
|
+ if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) ||
|
|
|
|
+ ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) ||
|
|
|
|
+ ((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT) ||
|
|
|
|
+ ((info->flash_id & FLASH_TYPEMASK) == FLASH_MXLV320T)) {
|
|
|
|
+ return flash_erase_2(info, s_first, s_last);
|
|
|
|
+ } else {
|
|
|
|
+ return flash_erase_1(info, s_first, s_last);
|
|
|
|
+ }
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static int flash_erase_1(flash_info_t * info, int s_first, int s_last)
|
|
|
|
+#else
|
|
|
|
+int flash_erase(flash_info_t * info, int s_first, int s_last)
|
|
|
|
+#endif
|
|
|
|
+{
|
|
|
|
+ volatile CFG_FLASH_WORD_SIZE *addr = (CFG_FLASH_WORD_SIZE *) (info->start[0]);
|
|
|
|
+ volatile CFG_FLASH_WORD_SIZE *addr2;
|
|
|
|
+ int flag, prot, sect, l_sect;
|
|
|
|
+ int i;
|
|
|
|
+
|
|
|
|
+ if ((s_first < 0) || (s_first > s_last)) {
|
|
|
|
+ if (info->flash_id == FLASH_UNKNOWN) {
|
|
|
|
+ printf("- missing\n");
|
|
|
|
+ } else {
|
|
|
|
+ printf("- no sectors to erase\n");
|
|
|
|
+ }
|
|
|
|
+ return 1;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ if (info->flash_id == FLASH_UNKNOWN) {
|
|
|
|
+ printf("Can't erase unknown flash type - aborted\n");
|
|
|
|
+ return 1;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ prot = 0;
|
|
|
|
+ for (sect = s_first; sect <= s_last; ++sect) {
|
|
|
|
+ if (info->protect[sect]) {
|
|
|
|
+ prot++;
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ if (prot) {
|
|
|
|
+ printf("- Warning: %d protected sectors will not be erased!\n",
|
|
|
|
+ prot);
|
|
|
|
+ } else {
|
|
|
|
+ printf("\n");
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ l_sect = -1;
|
|
|
|
+
|
|
|
|
+ /* Disable interrupts which might cause a timeout here */
|
|
|
|
+ flag = disable_interrupts();
|
|
|
|
+
|
|
|
|
+ /* Start erase on unprotected sectors */
|
|
|
|
+ for (sect = s_first; sect <= s_last; sect++) {
|
|
|
|
+ if (info->protect[sect] == 0) { /* not protected */
|
|
|
|
+ addr2 = (CFG_FLASH_WORD_SIZE *) (info->start[sect]);
|
|
|
|
+
|
|
|
|
+ if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) {
|
|
|
|
+ addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
|
|
|
|
+ addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
|
|
|
|
+ addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00800080;
|
|
|
|
+ addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
|
|
|
|
+ addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
|
|
|
|
+ addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00500050; /* block erase */
|
|
|
|
+ for (i = 0; i < 50; i++)
|
|
|
|
+ udelay(1000); /* wait 1 ms */
|
|
|
|
+ } else {
|
|
|
|
+ addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
|
|
|
|
+ addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
|
|
|
|
+ addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00800080;
|
|
|
|
+ addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
|
|
|
|
+ addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
|
|
|
|
+ addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00300030; /* sector erase */
|
|
|
|
+ }
|
|
|
|
+ l_sect = sect;
|
|
|
|
+ /*
|
|
|
|
+ * Wait for each sector to complete, it's more
|
|
|
|
+ * reliable. According to AMD Spec, you must
|
|
|
|
+ * issue all erase commands within a specified
|
|
|
|
+ * timeout. This has been seen to fail, especially
|
|
|
|
+ * if printf()s are included (for debug)!!
|
|
|
|
+ */
|
|
|
|
+ wait_for_DQ7_1(info, sect);
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /* re-enable interrupts if necessary */
|
|
|
|
+ if (flag)
|
|
|
|
+ enable_interrupts();
|
|
|
|
+
|
|
|
|
+ /* wait at least 80us - let's wait 1 ms */
|
|
|
|
+ udelay(1000);
|
|
|
|
+
|
|
|
|
+ /* reset to read mode */
|
|
|
|
+ addr = (CFG_FLASH_WORD_SIZE *) info->start[0];
|
|
|
|
+ addr[0] = (CFG_FLASH_WORD_SIZE) 0x00F000F0; /* 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 cp, wp, data;
|
|
|
|
+ int i, l, rc;
|
|
|
|
+
|
|
|
|
+ wp = (addr & ~3); /* get lower word aligned address */
|
|
|
|
+
|
|
|
|
+ /*
|
|
|
|
+ * handle unaligned start bytes
|
|
|
|
+ */
|
|
|
|
+ if ((l = addr - wp) != 0) {
|
|
|
|
+ data = 0;
|
|
|
|
+ for (i = 0, cp = wp; i < l; ++i, ++cp) {
|
|
|
|
+ data = (data << 8) | (*(uchar *) cp);
|
|
|
|
+ }
|
|
|
|
+ for (; i < 4 && cnt > 0; ++i) {
|
|
|
|
+ data = (data << 8) | *src++;
|
|
|
|
+ --cnt;
|
|
|
|
+ ++cp;
|
|
|
|
+ }
|
|
|
|
+ for (; cnt == 0 && i < 4; ++i, ++cp) {
|
|
|
|
+ data = (data << 8) | (*(uchar *) cp);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ if ((rc = write_word(info, wp, data)) != 0) {
|
|
|
|
+ return (rc);
|
|
|
|
+ }
|
|
|
|
+ wp += 4;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /*
|
|
|
|
+ * handle word aligned part
|
|
|
|
+ */
|
|
|
|
+ while (cnt >= 4) {
|
|
|
|
+ data = 0;
|
|
|
|
+ for (i = 0; i < 4; ++i) {
|
|
|
|
+ data = (data << 8) | *src++;
|
|
|
|
+ }
|
|
|
|
+ if ((rc = write_word(info, wp, data)) != 0) {
|
|
|
|
+ return (rc);
|
|
|
|
+ }
|
|
|
|
+ wp += 4;
|
|
|
|
+ cnt -= 4;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ if (cnt == 0) {
|
|
|
|
+ return (0);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /*
|
|
|
|
+ * handle unaligned tail bytes
|
|
|
|
+ */
|
|
|
|
+ data = 0;
|
|
|
|
+ for (i = 0, cp = wp; i < 4 && cnt > 0; ++i, ++cp) {
|
|
|
|
+ data = (data << 8) | *src++;
|
|
|
|
+ --cnt;
|
|
|
|
+ }
|
|
|
|
+ for (; i < 4; ++i, ++cp) {
|
|
|
|
+ data = (data << 8) | (*(uchar *) cp);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ return (write_word(info, wp, data));
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+/*-----------------------------------------------------------------------
|
|
|
|
+ * Copy memory to flash, returns:
|
|
|
|
+ * 0 - OK
|
|
|
|
+ * 1 - write timeout
|
|
|
|
+ * 2 - Flash not erased
|
|
|
|
+ */
|
|
|
|
+#ifdef CFG_FLASH_2ND_16BIT_DEV
|
|
|
|
+static int write_word(flash_info_t * info, ulong dest, ulong data)
|
|
|
|
+{
|
|
|
|
+ if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) ||
|
|
|
|
+ ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) ||
|
|
|
|
+ ((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT) ||
|
|
|
|
+ ((info->flash_id & FLASH_TYPEMASK) == FLASH_MXLV320T)) {
|
|
|
|
+ return write_word_2(info, dest, data);
|
|
|
|
+ } else {
|
|
|
|
+ return write_word_1(info, dest, data);
|
|
|
|
+ }
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static int write_word_1(flash_info_t * info, ulong dest, ulong data)
|
|
|
|
+#else
|
|
|
|
+static int write_word(flash_info_t * info, ulong dest, ulong data)
|
|
|
|
+#endif
|
|
|
|
+{
|
|
|
|
+ volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *) (info->start[0]);
|
|
|
|
+ volatile CFG_FLASH_WORD_SIZE *dest2 = (CFG_FLASH_WORD_SIZE *) dest;
|
|
|
|
+ volatile CFG_FLASH_WORD_SIZE *data2 = (CFG_FLASH_WORD_SIZE *) & data;
|
|
|
|
+ ulong start;
|
|
|
|
+ int i;
|
|
|
|
+
|
|
|
|
+ /* Check if Flash is (sufficiently) erased */
|
|
|
|
+ if ((*((vu_long *)dest) & data) != data) {
|
|
|
|
+ return (2);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ for (i = 0; i < 4 / sizeof(CFG_FLASH_WORD_SIZE); i++) {
|
|
|
|
+ int flag;
|
|
|
|
+
|
|
|
|
+ /* Disable interrupts which might cause a timeout here */
|
|
|
|
+ flag = disable_interrupts();
|
|
|
|
+
|
|
|
|
+ addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
|
|
|
|
+ addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
|
|
|
|
+ addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00A000A0;
|
|
|
|
+
|
|
|
|
+ dest2[i] = data2[i];
|
|
|
|
+
|
|
|
|
+ /* re-enable interrupts if necessary */
|
|
|
|
+ if (flag)
|
|
|
|
+ enable_interrupts();
|
|
|
|
+
|
|
|
|
+ /* data polling for D7 */
|
|
|
|
+ start = get_timer(0);
|
|
|
|
+ while ((dest2[i] & (CFG_FLASH_WORD_SIZE) 0x00800080) !=
|
|
|
|
+ (data2[i] & (CFG_FLASH_WORD_SIZE) 0x00800080)) {
|
|
|
|
+
|
|
|
|
+ if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
|
|
|
|
+ return (1);
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ return (0);
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+#ifdef CFG_FLASH_2ND_16BIT_DEV
|
|
|
|
+
|
|
|
|
+#undef CFG_FLASH_WORD_SIZE
|
|
|
|
+#define CFG_FLASH_WORD_SIZE unsigned short
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+ * The following code cannot be run from FLASH!
|
|
|
|
+ */
|
|
|
|
+static ulong flash_get_size_2(vu_long * addr, flash_info_t * info)
|
|
|
|
+{
|
|
|
|
+ short i;
|
|
|
|
+ int n;
|
|
|
|
+ CFG_FLASH_WORD_SIZE value;
|
|
|
|
+ ulong base = (ulong) addr;
|
|
|
|
+ volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *) addr;
|
|
|
|
+
|
|
|
|
+ DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr);
|
|
|
|
+
|
|
|
|
+ /* issue bank reset to return to read mode */
|
|
|
|
+ addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00F000F0;
|
|
|
|
+ /* Write auto select command: read Manufacturer ID */
|
|
|
|
+ addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
|
|
|
|
+ addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
|
|
|
|
+ addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00900090;
|
|
|
|
+ udelay(1000);
|
|
|
|
+
|
|
|
|
+ value = addr2[0];
|
|
|
|
+ DEBUGF("FLASH MANUFACT: %x\n", value);
|
|
|
|
+
|
|
|
|
+#if 0 /* TODO: remove ifdef when Flash responds correctly */
|
|
|
|
+ switch (value) {
|
|
|
|
+ case (CFG_FLASH_WORD_SIZE) AMD_MANUFACT:
|
|
|
|
+ info->flash_id = FLASH_MAN_AMD;
|
|
|
|
+ break;
|
|
|
|
+ case (CFG_FLASH_WORD_SIZE) FUJ_MANUFACT:
|
|
|
|
+ info->flash_id = FLASH_MAN_FUJ;
|
|
|
|
+ break;
|
|
|
|
+ case (CFG_FLASH_WORD_SIZE) SST_MANUFACT:
|
|
|
|
+ info->flash_id = FLASH_MAN_SST;
|
|
|
|
+ break;
|
|
|
|
+ case (CFG_FLASH_WORD_SIZE) STM_MANUFACT:
|
|
|
|
+ info->flash_id = FLASH_MAN_STM;
|
|
|
|
+ break;
|
|
|
|
+ case (CFG_FLASH_WORD_SIZE) MX_MANUFACT:
|
|
|
|
+ info->flash_id = FLASH_MAN_MX;
|
|
|
|
+ break;
|
|
|
|
+ default:
|
|
|
|
+ info->flash_id = FLASH_UNKNOWN;
|
|
|
|
+ info->sector_count = 0;
|
|
|
|
+ info->size = 0;
|
|
|
|
+ return (0); /* no or unknown flash */
|
|
|
|
+ }
|
|
|
|
+#endif /* TODO: remove ifdef when Flash responds correctly */
|
|
|
|
+
|
|
|
|
+ /*
|
|
|
|
+ * TODO: Start
|
|
|
|
+ * uncomment block above when Flash responds correctly.
|
|
|
|
+ * also remove the lines below:
|
|
|
|
+ */
|
|
|
|
+ info->flash_id = FLASH_MAN_AMD;
|
|
|
|
+ DEBUGF("FLASH MANUFACT: FLASH_MAN_AMD\n");
|
|
|
|
+ /* TODO: End */
|
|
|
|
+
|
|
|
|
+ value = addr2[1]; /* device ID */
|
|
|
|
+
|
|
|
|
+ DEBUGF("\nFLASH DEVICEID: %x\n", value);
|
|
|
|
+
|
|
|
|
+#if 0 /* TODO: remove ifdef when Flash responds correctly */
|
|
|
|
+ switch (value) {
|
|
|
|
+
|
|
|
|
+ case (CFG_FLASH_WORD_SIZE)AMD_ID_LV320T:
|
|
|
|
+ info->flash_id += FLASH_AM320T;
|
|
|
|
+ info->sector_count = 71;
|
|
|
|
+ info->size = 0x00400000; break; /* => 4 MB */
|
|
|
|
+
|
|
|
|
+ case (CFG_FLASH_WORD_SIZE)AMD_ID_LV320B:
|
|
|
|
+ info->flash_id += FLASH_AM320B;
|
|
|
|
+ info->sector_count = 71;
|
|
|
|
+ info->size = 0x00400000; break; /* => 4 MB */
|
|
|
|
+
|
|
|
|
+ case (CFG_FLASH_WORD_SIZE)STM_ID_29W320DT:
|
|
|
|
+ info->flash_id += FLASH_STMW320DT;
|
|
|
|
+ info->sector_count = 67;
|
|
|
|
+ info->size = 0x00400000; break; /* => 4 MB */
|
|
|
|
+
|
|
|
|
+ case (CFG_FLASH_WORD_SIZE)MX_ID_LV320T:
|
|
|
|
+ info->flash_id += FLASH_MXLV320T;
|
|
|
|
+ info->sector_count = 71;
|
|
|
|
+ info->size = 0x00400000; break; /* => 4 MB */
|
|
|
|
+
|
|
|
|
+ default:
|
|
|
|
+ info->flash_id = FLASH_UNKNOWN;
|
|
|
|
+ return (0); /* => no or unknown flash */
|
|
|
|
+ }
|
|
|
|
+#endif /* TODO: remove ifdef when Flash responds correctly */
|
|
|
|
+
|
|
|
|
+ /*
|
|
|
|
+ * TODO: Start
|
|
|
|
+ * uncomment block above when Flash responds correctly.
|
|
|
|
+ * also remove the lines below:
|
|
|
|
+ */
|
|
|
|
+ DEBUGF("\nFLASH DEVICEID: FLASH_AM320T\n");
|
|
|
|
+ info->flash_id += FLASH_AM320T;
|
|
|
|
+ info->sector_count = 71;
|
|
|
|
+ info->size = 0x00400000; /* => 4 MB */
|
|
|
|
+ /* TODO: End */
|
|
|
|
+
|
|
|
|
+ /* set up sector start address table */
|
|
|
|
+ if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
|
|
|
|
+ ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM040) ||
|
|
|
|
+ ((info->flash_id & FLASH_TYPEMASK) == FLASH_AMD016)) {
|
|
|
|
+ for (i = 0; i < info->sector_count; i++)
|
|
|
|
+ info->start[i] = base + (i * 0x00010000);
|
|
|
|
+ } else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT) {
|
|
|
|
+ /* set sector offsets for top boot block type */
|
|
|
|
+ base += info->size;
|
|
|
|
+ i = info->sector_count;
|
|
|
|
+ /* 1 x 16k boot sector */
|
|
|
|
+ base -= 16 << 10;
|
|
|
|
+ --i;
|
|
|
|
+ info->start[i] = base;
|
|
|
|
+ /* 2 x 8k boot sectors */
|
|
|
|
+ for (n=0; n<2; ++n) {
|
|
|
|
+ base -= 8 << 10;
|
|
|
|
+ --i;
|
|
|
|
+ info->start[i] = base;
|
|
|
|
+ }
|
|
|
|
+ /* 1 x 32k boot sector */
|
|
|
|
+ base -= 32 << 10;
|
|
|
|
+ --i;
|
|
|
|
+ info->start[i] = base;
|
|
|
|
+
|
|
|
|
+ while (i > 0) { /* 64k regular sectors */
|
|
|
|
+ base -= 64 << 10;
|
|
|
|
+ --i;
|
|
|
|
+ info->start[i] = base;
|
|
|
|
+ }
|
|
|
|
+ } else if ( ((info->flash_id & FLASH_TYPEMASK) == FLASH_MXLV320T) ||
|
|
|
|
+ ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) ) {
|
|
|
|
+ i = info->sector_count - 1;
|
|
|
|
+ info->start[i--] = base + info->size - 0x00002000;
|
|
|
|
+ info->start[i--] = base + info->size - 0x00004000;
|
|
|
|
+ info->start[i--] = base + info->size - 0x00006000;
|
|
|
|
+ info->start[i--] = base + info->size - 0x00008000;
|
|
|
|
+ info->start[i--] = base + info->size - 0x0000a000;
|
|
|
|
+ info->start[i--] = base + info->size - 0x0000c000;
|
|
|
|
+ info->start[i--] = base + info->size - 0x0000e000;
|
|
|
|
+ info->start[i--] = base + info->size - 0x00010000;
|
|
|
|
+ for (; i >= 0; i--) {
|
|
|
|
+ info->start[i] = base + i * 0x00010000;
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ else {
|
|
|
|
+ if (info->flash_id & FLASH_BTYPE){
|
|
|
|
+ /* set sector offsets for bottom boot block type */
|
|
|
|
+ info->start[0] = base + 0x00000000;
|
|
|
|
+ info->start[1] = base + 0x00004000;
|
|
|
|
+ info->start[2] = base + 0x00006000;
|
|
|
|
+ info->start[3] = base + 0x00008000;
|
|
|
|
+ for (i = 4; i < info->sector_count; i++) {
|
|
|
|
+ info->start[i] =
|
|
|
|
+ base + (i * 0x00010000) - 0x00030000;
|
|
|
|
+ }
|
|
|
|
+ } else {
|
|
|
|
+ /* set sector offsets for top boot block type */
|
|
|
|
+ i = info->sector_count - 1;
|
|
|
|
+ info->start[i--] = base + info->size - 0x00004000;
|
|
|
|
+ info->start[i--] = base + info->size - 0x00006000;
|
|
|
|
+ info->start[i--] = base + info->size - 0x00008000;
|
|
|
|
+ for (; i >= 0; i--) {
|
|
|
|
+ info->start[i] = base + i * 0x00010000;
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /* check for protected sectors */
|
|
|
|
+ for (i = 0; i < info->sector_count; i++) {
|
|
|
|
+ /* read sector protection at sector address,(A7 .. A0) = 0x02 */
|
|
|
|
+ /* D0 = 1 if protected */
|
|
|
|
+ addr2 = (volatile CFG_FLASH_WORD_SIZE *)(info->start[i]);
|
|
|
|
+
|
|
|
|
+ /* For AMD29033C flash we need to resend the command of *
|
|
|
|
+ * reading flash protection for upper 8 Mb of flash */
|
|
|
|
+ if (i == 32) {
|
|
|
|
+ addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
|
|
|
|
+ addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
|
|
|
|
+ addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x90909090;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
|
|
|
|
+ info->protect[i] = 0;
|
|
|
|
+ else
|
|
|
|
+ info->protect[i] = addr2[2] & 1;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /* issue bank reset to return to read mode */
|
|
|
|
+ addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00F000F0;
|
|
|
|
+
|
|
|
|
+ return (info->size);
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+ * TODO: FIX: this wait loop sometimes fails: DQ7 indicates the erase command
|
|
|
|
+ * never was accepted (i.e. didn't start) - why????
|
|
|
|
+ */
|
|
|
|
+static int wait_for_DQ7_2(flash_info_t * info, int sect)
|
|
|
|
+{
|
|
|
|
+ ulong start, now, last, counter = 0;
|
|
|
|
+ volatile CFG_FLASH_WORD_SIZE *addr =
|
|
|
|
+ (CFG_FLASH_WORD_SIZE *) (info->start[sect]);
|
|
|
|
+
|
|
|
|
+ start = get_timer(0);
|
|
|
|
+ DEBUGF("DQ7_2: start = 0x%08lx\n", start);
|
|
|
|
+ last = start;
|
|
|
|
+ while ((addr[0] & (CFG_FLASH_WORD_SIZE) 0x00800080) !=
|
|
|
|
+ (CFG_FLASH_WORD_SIZE) 0x00800080) {
|
|
|
|
+ DEBUGF("DQ7_2: start = 0x%08lx, now = 0x%08lx\n", start, now);
|
|
|
|
+ if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
|
|
|
|
+ printf("Timeout\n");
|
|
|
|
+ return -1;
|
|
|
|
+ }
|
|
|
|
+ /* show that we're waiting */
|
|
|
|
+ if ((now - last) > 1000) { /* every second */
|
|
|
|
+ putc('.');
|
|
|
|
+ last = now;
|
|
|
|
+ }
|
|
|
|
+ udelay(1000000); /* 1 sec */
|
|
|
|
+ putc('.');
|
|
|
|
+ counter++;
|
|
|
|
+ if (counter > 5) {
|
|
|
|
+ return -1;
|
|
|
|
+ }
|
|
|
|
+ DEBUGF("DQ7_2: now = 0x%08lx, last = 0x%08lx\n", now, last);
|
|
|
|
+ }
|
|
|
|
+ return 0;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static void wr_flash_cmd(ulong sector, ushort addr, CFG_FLASH_WORD_SIZE value)
|
|
|
|
+{
|
|
|
|
+ int fw_size;
|
|
|
|
+
|
|
|
|
+ fw_size = sizeof(value);
|
|
|
|
+ switch (fw_size)
|
|
|
|
+ {
|
|
|
|
+ case 1:
|
|
|
|
+ out8((ulong)(sector + addr), value);
|
|
|
|
+ break;
|
|
|
|
+ case 2:
|
|
|
|
+ out16((ulong)(sector + (addr << 1)), value);
|
|
|
|
+ break;
|
|
|
|
+ default:
|
|
|
|
+ printf("flash_erase: error incorrect chip programing size.\n");
|
|
|
|
+ }
|
|
|
|
+ return;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static int flash_erase_2(flash_info_t * info, int s_first, int s_last)
|
|
|
|
+{
|
|
|
|
+ volatile CFG_FLASH_WORD_SIZE *addr = (CFG_FLASH_WORD_SIZE *) (info->start[0]);
|
|
|
|
+ volatile CFG_FLASH_WORD_SIZE *addr2;
|
|
|
|
+ int flag, prot, sect, l_sect, count = 0;
|
|
|
|
+ int i;
|
|
|
|
+
|
|
|
|
+ if ((s_first < 0) || (s_first > s_last)) {
|
|
|
|
+ if (info->flash_id == FLASH_UNKNOWN) {
|
|
|
|
+ printf("- missing\n");
|
|
|
|
+ } else {
|
|
|
|
+ printf("- no sectors to erase\n");
|
|
|
|
+ }
|
|
|
|
+ return 1;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ if (info->flash_id == FLASH_UNKNOWN) {
|
|
|
|
+ printf("Can't erase unknown flash type - aborted\n");
|
|
|
|
+ return 1;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ prot = 0;
|
|
|
|
+ for (sect = s_first; sect <= s_last; ++sect) {
|
|
|
|
+ if (info->protect[sect]) {
|
|
|
|
+ prot++;
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ if (prot) {
|
|
|
|
+ printf("- Warning: %d protected sectors will not be erased!\n",
|
|
|
|
+ prot);
|
|
|
|
+ } else {
|
|
|
|
+ printf("\n");
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ l_sect = -1;
|
|
|
|
+
|
|
|
|
+ /* Disable interrupts which might cause a timeout here */
|
|
|
|
+ flag = disable_interrupts();
|
|
|
|
+
|
|
|
|
+ /* Start erase on unprotected sectors */
|
|
|
|
+ for (sect = s_first, count = 0; sect <= s_last; sect++) {
|
|
|
|
+ if (info->protect[sect] == 0) { /* not protected */
|
|
|
|
+ addr2 = (CFG_FLASH_WORD_SIZE *) (info->start[sect]);
|
|
|
|
+
|
|
|
|
+ if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) {
|
|
|
|
+ addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
|
|
|
|
+ addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
|
|
|
|
+ addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00800080;
|
|
|
|
+ addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
|
|
|
|
+ addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
|
|
|
|
+ addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00500050; /* block erase */
|
|
|
|
+ for (i = 0; i < 50; i++)
|
|
|
|
+ udelay(1000); /* wait 1 ms */
|
|
|
|
+ } else {
|
|
|
|
+ /*
|
|
|
|
+ * TODO: fix code
|
|
|
|
+ */
|
|
|
|
+ wr_flash_cmd((ulong)addr, 0, (CFG_FLASH_WORD_SIZE) 0x00F000F0);
|
|
|
|
+ wr_flash_cmd((ulong)addr, CFG_FLASH_ADDR0, (CFG_FLASH_WORD_SIZE) 0x00AA00AA);
|
|
|
|
+ wr_flash_cmd((ulong)addr, CFG_FLASH_ADDR1, (CFG_FLASH_WORD_SIZE) 0x00550055);
|
|
|
|
+ wr_flash_cmd((ulong)addr, CFG_FLASH_ADDR0, (CFG_FLASH_WORD_SIZE) 0x00800080);
|
|
|
|
+ wr_flash_cmd((ulong)addr, CFG_FLASH_ADDR0, (CFG_FLASH_WORD_SIZE) 0x00AA00AA);
|
|
|
|
+ wr_flash_cmd((ulong)addr, CFG_FLASH_ADDR1, (CFG_FLASH_WORD_SIZE) 0x00550055);
|
|
|
|
+ wr_flash_cmd((ulong)addr2, 0, (CFG_FLASH_WORD_SIZE) 0x00300030);
|
|
|
|
+ udelay(2000000); /* 2 sec */
|
|
|
|
+ wr_flash_cmd((ulong)addr, 0, (CFG_FLASH_WORD_SIZE) 0x00F000F0);
|
|
|
|
+
|
|
|
|
+#if 0
|
|
|
|
+ addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
|
|
|
|
+ addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
|
|
|
|
+ addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00800080;
|
|
|
|
+ addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
|
|
|
|
+ addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
|
|
|
|
+ addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00300030; /* sector erase */
|
|
|
|
+#endif
|
|
|
|
+ }
|
|
|
|
+ l_sect = sect;
|
|
|
|
+ printf("..");
|
|
|
|
+ printf("..");
|
|
|
|
+ /*
|
|
|
|
+ * Wait for each sector to complete, it's more
|
|
|
|
+ * reliable. According to AMD Spec, you must
|
|
|
|
+ * issue all erase commands within a specified
|
|
|
|
+ * timeout. This has been seen to fail, especially
|
|
|
|
+ * if printf()s are included (for debug)!!
|
|
|
|
+ */
|
|
|
|
+ wait_for_DQ7_2(info, sect);
|
|
|
|
+ count++;
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /* re-enable interrupts if necessary */
|
|
|
|
+ if (flag)
|
|
|
|
+ enable_interrupts();
|
|
|
|
+
|
|
|
|
+ /* wait at least 80us - let's wait 1 ms */
|
|
|
|
+ udelay(1000);
|
|
|
|
+
|
|
|
|
+ /* reset to read mode */
|
|
|
|
+ addr = (CFG_FLASH_WORD_SIZE *) info->start[0];
|
|
|
|
+ addr[0] = (CFG_FLASH_WORD_SIZE) 0x00F000F0; /* reset bank */
|
|
|
|
+
|
|
|
|
+ printf(" done\n");
|
|
|
|
+
|
|
|
|
+ if (count > 0) {
|
|
|
|
+ return 0;
|
|
|
|
+ } else {
|
|
|
|
+ return 1;
|
|
|
|
+ }
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static int write_word_2(flash_info_t * info, ulong dest, ulong data)
|
|
|
|
+{
|
|
|
|
+ volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *) (info->start[0]);
|
|
|
|
+ volatile CFG_FLASH_WORD_SIZE *dest2 = (CFG_FLASH_WORD_SIZE *) dest;
|
|
|
|
+ volatile CFG_FLASH_WORD_SIZE *data2 = (CFG_FLASH_WORD_SIZE *) & data;
|
|
|
|
+ ulong start;
|
|
|
|
+ int i;
|
|
|
|
+
|
|
|
|
+ /* Check if Flash is (sufficiently) erased */
|
|
|
|
+ if ((*((vu_long *)dest) & data) != data) {
|
|
|
|
+ return (2);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ for (i = 0; i < 4 / sizeof(CFG_FLASH_WORD_SIZE); i++) {
|
|
|
|
+ int flag;
|
|
|
|
+
|
|
|
|
+ /* Disable interrupts which might cause a timeout here */
|
|
|
|
+ flag = disable_interrupts();
|
|
|
|
+
|
|
|
|
+ addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00AA00AA;
|
|
|
|
+ addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x00550055;
|
|
|
|
+ addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x00A000A0;
|
|
|
|
+
|
|
|
|
+ dest2[i] = data2[i];
|
|
|
|
+
|
|
|
|
+ /* re-enable interrupts if necessary */
|
|
|
|
+ if (flag)
|
|
|
|
+ enable_interrupts();
|
|
|
|
+
|
|
|
|
+ /* data polling for D7 */
|
|
|
|
+ start = get_timer(0);
|
|
|
|
+ while ((dest2[i] & (CFG_FLASH_WORD_SIZE) 0x00800080) !=
|
|
|
|
+ (data2[i] & (CFG_FLASH_WORD_SIZE) 0x00800080)) {
|
|
|
|
+
|
|
|
|
+ if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
|
|
|
|
+ return (1);
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ return (0);
|
|
|
|
+}
|
|
|
|
+#endif /* CFG_FLASH_2ND_16BIT_DEV */
|
|
|
|
+
|
|
|
|
+/*-----------------------------------------------------------------------
|
|
|
|
+ * Functions
|
|
|
|
+ */
|
|
|
|
+static ulong flash_get_size(vu_long * addr, flash_info_t * info);
|
|
|
|
+static int write_word(flash_info_t * info, ulong dest, ulong data);
|
|
|
|
+
|
|
|
|
+/*-----------------------------------------------------------------------
|
|
|
|
+ */
|
|
|
|
+
|
|
|
|
+unsigned long flash_init(void)
|
|
|
|
+{
|
|
|
|
+ unsigned long total_b = 0;
|
|
|
|
+ unsigned long size_b[CFG_MAX_FLASH_BANKS];
|
|
|
|
+ unsigned short index = 0;
|
|
|
|
+ int i;
|
|
|
|
+
|
|
|
|
+ index = 0;
|
|
|
|
+
|
|
|
|
+ DEBUGF("\n");
|
|
|
|
+ DEBUGF("FLASH: Index: %d\n", index);
|
|
|
|
+
|
|
|
|
+ /* Init: no FLASHes known */
|
|
|
|
+ for (i = 0; i < CFG_MAX_FLASH_BANKS; ++i) {
|
|
|
|
+ flash_info[i].flash_id = FLASH_UNKNOWN;
|
|
|
|
+ flash_info[i].sector_count = -1;
|
|
|
|
+ flash_info[i].size = 0;
|
|
|
|
+
|
|
|
|
+ /* check whether the address is 0 */
|
|
|
|
+ if (flash_addr_table[index][i] == 0) {
|
|
|
|
+ continue;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /* call flash_get_size() to initialize sector address */
|
|
|
|
+ size_b[i] = flash_get_size((vu_long *) flash_addr_table[index][i],
|
|
|
|
+ &flash_info[i]);
|
|
|
|
+ flash_info[i].size = size_b[i];
|
|
|
|
+ if (flash_info[i].flash_id == FLASH_UNKNOWN) {
|
|
|
|
+ printf("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n",
|
|
|
|
+ i, size_b[i], size_b[i] << 20);
|
|
|
|
+ flash_info[i].sector_count = -1;
|
|
|
|
+ flash_info[i].size = 0;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /* Monitor protection ON by default */
|
|
|
|
+ (void)flash_protect(FLAG_PROTECT_SET, CFG_MONITOR_BASE,
|
|
|
|
+ CFG_MONITOR_BASE + CFG_MONITOR_LEN - 1,
|
|
|
|
+ &flash_info[i]);
|
|
|
|
+#if defined(CFG_ENV_IS_IN_FLASH)
|
|
|
|
+ (void)flash_protect(FLAG_PROTECT_SET, CFG_ENV_ADDR,
|
|
|
|
+ CFG_ENV_ADDR + CFG_ENV_SECT_SIZE - 1,
|
|
|
|
+ &flash_info[i]);
|
|
|
|
+#if defined(CFG_ENV_IS_IN_FLASH) && defined(CFG_ENV_ADDR_REDUND)
|
|
|
|
+ (void)flash_protect(FLAG_PROTECT_SET, CFG_ENV_ADDR_REDUND,
|
|
|
|
+ CFG_ENV_ADDR_REDUND + CFG_ENV_SECT_SIZE - 1,
|
|
|
|
+ &flash_info[i]);
|
|
|
|
+#endif
|
|
|
|
+#endif
|
|
|
|
+
|
|
|
|
+ total_b += flash_info[i].size;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ return total_b;
|
|
|
|
+}
|