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authorwdenk <wdenk>2002-08-17 09:36:01 +0000
committerwdenk <wdenk>2002-08-17 09:36:01 +0000
commitaffae2bff825c1a8d2cfeaf7b270188d251d39d2 (patch)
treee025ca5a84cdcd70cff986e09f89e1aaa360499c /board/esd/adciop/flash.c
parentcf356ef708390102d493c53d18fd19a5963c6aa9 (diff)
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Initial revision
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diff --git a/board/esd/adciop/flash.c b/board/esd/adciop/flash.c
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+/*
+ * (C) Copyright 2001
+ * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <ppc4xx.h>
+#include <asm/processor.h>
+
+/*
+ * include common flash code (for esd boards)
+ */
+#include "../common/flash.c"
+
+/*-----------------------------------------------------------------------
+ * Functions
+ */
+static ulong flash_get_size (vu_long *addr, flash_info_t *info);
+static void flash_get_offsets (ulong base, flash_info_t *info);
+
+/*-----------------------------------------------------------------------
+ */
+
+unsigned long flash_init (void)
+{
+ unsigned long size_b0, size_b1;
+ int i;
+
+ /* Init: no FLASHes known */
+ for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) {
+ flash_info[i].flash_id = FLASH_UNKNOWN;
+ }
+
+ size_b0 = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]);
+
+ if (flash_info[0].flash_id == FLASH_UNKNOWN) {
+ printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
+ size_b0, size_b0<<20);
+ }
+
+ size_b1 = flash_get_size((vu_long *)FLASH_BASE1_PRELIM, &flash_info[1]);
+
+ if (size_b1 > size_b0) {
+ printf ("## ERROR: "
+ "Bank 1 (0x%08lx = %ld MB) > Bank 0 (0x%08lx = %ld MB)\n",
+ size_b1, size_b1<<20,
+ size_b0, size_b0<<20
+ );
+ flash_info[0].flash_id = FLASH_UNKNOWN;
+ flash_info[1].flash_id = FLASH_UNKNOWN;
+ flash_info[0].sector_count = -1;
+ flash_info[1].sector_count = -1;
+ flash_info[0].size = 0;
+ flash_info[1].size = 0;
+ return (0);
+ }
+
+ /* Re-do sizing to get full correct info */
+ size_b0 = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]);
+
+ flash_get_offsets (FLASH_BASE0_PRELIM, &flash_info[0]);
+
+ /* monitor protection ON by default */
+ flash_protect(FLAG_PROTECT_SET,
+ FLASH_BASE0_PRELIM+size_b0-CFG_MONITOR_LEN,
+ FLASH_BASE0_PRELIM+size_b0-1,
+ &flash_info[0]);
+
+ if (size_b1) {
+ /* Re-do sizing to get full correct info */
+ size_b1 = flash_get_size((vu_long *)(FLASH_BASE0_PRELIM + size_b0),
+ &flash_info[1]);
+
+ flash_get_offsets (FLASH_BASE0_PRELIM + size_b0, &flash_info[1]);
+
+ /* monitor protection ON by default */
+ flash_protect(FLAG_PROTECT_SET,
+ FLASH_BASE0_PRELIM+size_b0+size_b1-CFG_MONITOR_LEN,
+ FLASH_BASE0_PRELIM+size_b0+size_b1-1,
+ &flash_info[1]);
+ /* monitor protection OFF by default (one is enough) */
+ flash_protect(FLAG_PROTECT_CLEAR,
+ FLASH_BASE0_PRELIM+size_b0-CFG_MONITOR_LEN,
+ FLASH_BASE0_PRELIM+size_b0-1,
+ &flash_info[0]);
+ } else {
+ flash_info[1].flash_id = FLASH_UNKNOWN;
+ flash_info[1].sector_count = -1;
+ }
+
+ flash_info[0].size = size_b0;
+ flash_info[1].size = size_b1;
+
+ return (size_b0 + size_b1);
+}