1 files changed, 85 insertions, 0 deletions
diff --git a/board/prodrive/pdnb3/flash.c b/board/prodrive/pdnb3/flash.c
new file mode 100644
index 00000000000..d0e5fe703b9
--- /dev/null
+++ b/board/prodrive/pdnb3/flash.c
@@ -0,0 +1,85 @@
+/*
+ * (C) Copyright 2006
+ * Stefan Roese, DENX Software Engineering, sr@denx.de.
+ *
+ * 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 <asm/arch/ixp425.h>
+
+/*
+ * include common flash code (for esd boards)
+ */
+#include "../common/flash.c"
+
+/*
+ * Prototypes
+ */
+static ulong flash_get_size (vu_long * addr, flash_info_t * info);
+
+static inline ulong ld(ulong x)
+{
+	ulong k = 0;
+
+	while (x >>= 1)
+		++k;
+
+	return k;
+}
+
+unsigned long flash_init(void)
+{
+	unsigned long size;
+	int i;
+
+	/* Init: no FLASHes known */
+	for (i=0; i<CFG_MAX_FLASH_BANKS; i++)
+		flash_info[i].flash_id = FLASH_UNKNOWN;
+
+	size = 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, size<<20);
+
+	/* Reconfigure CS0 to actual FLASH size */
+	*IXP425_EXP_CS0 = (*IXP425_EXP_CS0 & ~0x00003C00) | ((ld(size) - 9) << 10);
+
+	/* Monitor protection ON by default */
+	flash_protect(FLAG_PROTECT_SET,
+		      CFG_MONITOR_BASE, CFG_MONITOR_BASE + monitor_flash_len - 1,
+		      &flash_info[CFG_MAX_FLASH_BANKS - 1]);
+
+	/* Environment protection ON by default */
+	flash_protect(FLAG_PROTECT_SET,
+		      CFG_ENV_ADDR,
+		      CFG_ENV_ADDR + CFG_ENV_SECT_SIZE - 1,
+		      &flash_info[CFG_MAX_FLASH_BANKS - 1]);
+
+	/* Redundant environment protection ON by default */
+	flash_protect(FLAG_PROTECT_SET,
+		      CFG_ENV_ADDR_REDUND,
+		      CFG_ENV_ADDR_REDUND + CFG_ENV_SIZE_REDUND - 1,
+		      &flash_info[CFG_MAX_FLASH_BANKS - 1]);
+
+	flash_info[0].size = size;
+
+	return size;
+}