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diff -urN linux-2.6.16.7/drivers/mtd/maps/bcm963xx.c linux-2.6.16.7-brcm63xx/drivers/mtd/maps/bcm963xx.c
--- linux-2.6.16.7/drivers/mtd/maps/bcm963xx.c 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.16.7-brcm63xx/drivers/mtd/maps/bcm963xx.c 2006-07-07 22:00:36.000000000 +0200
@@ -0,0 +1,106 @@
+/*
+ * A simple flash mapping code for BCM963xx board flash memory
+ * It is simple because it only treats all the flash memory as ROM
+ * It is used with chips/map_rom.c
+ *
+ * Song Wang (songw@broadcom.com)
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <asm/io.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/config.h>
+
+#include <board.h>
+#include <bcmTag.h>
+#define VERSION "1.0"
+
+extern PFILE_TAG kerSysImageTagGet(void);
+
+static struct mtd_info *mymtd;
+
+static map_word brcm_physmap_read16(struct map_info *map, unsigned long ofs)
+{
+ map_word val;
+
+ val.x[0] = __raw_readw(map->map_priv_1 + ofs);
+
+ return val;
+}
+
+static void brcm_physmap_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+{
+ memcpy_fromio(to, map->map_priv_1 + from, len);
+}
+
+static struct map_info brcm_physmap_map = {
+ .name = "Physically mapped flash",
+ .bankwidth = 2,
+ .read = brcm_physmap_read16,
+ .copy_from = brcm_physmap_copy_from
+};
+
+static int __init init_brcm_physmap(void)
+{
+ PFILE_TAG pTag = NULL;
+ u_int32_t rootfs_addr, kernel_addr;
+ FLASH_ADDR_INFO info;
+
+ printk("bcm963xx_mtd driver v%s\n", VERSION);
+ kerSysFlashAddrInfoGet( &info );
+
+ /* Read the flash memory map from flash memory. */
+ if (!(pTag = kerSysImageTagGet())) {
+ printk("Failed to read image tag from flash\n");
+ return -EIO;
+ }
+
+ rootfs_addr = (u_int32_t) simple_strtoul(pTag->rootfsAddress, NULL, 10);
+ kernel_addr = (u_int32_t) simple_strtoul(pTag->kernelAddress, NULL, 10);
+
+ brcm_physmap_map.size = kernel_addr - rootfs_addr;
+ brcm_physmap_map.map_priv_1 = (unsigned long)rootfs_addr;
+
+ if (!brcm_physmap_map.map_priv_1) {
+ printk("Wrong rootfs starting address\n");
+ return -EIO;
+ }
+
+ if (brcm_physmap_map.size <= 0) {
+ printk("Wrong rootfs size\n");
+ return -EIO;
+ }
+
+ mymtd = do_map_probe("map_rom", &brcm_physmap_map);
+ if (mymtd) {
+ mymtd->owner = THIS_MODULE;
+ add_mtd_device(mymtd);
+
+ return 0;
+ }
+
+ return -ENXIO;
+}
+
+static void __exit cleanup_brcm_physmap(void)
+{
+ if (mymtd) {
+ del_mtd_device(mymtd);
+ map_destroy(mymtd);
+ }
+ if (brcm_physmap_map.map_priv_1) {
+ brcm_physmap_map.map_priv_1 = 0;
+ }
+}
+
+module_init(init_brcm_physmap);
+module_exit(cleanup_brcm_physmap);
+
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Song Wang songw@broadcom.com");
+MODULE_DESCRIPTION("Configurable MTD map driver for read-only root file system");
diff -urN linux-2.6.16.7/drivers/mtd/maps/Kconfig linux-2.6.16.7-brcm63xx/drivers/mtd/maps/Kconfig
--- linux-2.6.16.7/drivers/mtd/maps/Kconfig 2006-04-17 23:53:25.000000000 +0200
+++ linux-2.6.16.7-brcm63xx/drivers/mtd/maps/Kconfig 2006-07-07 22:02:13.000000000 +0200
@@ -224,6 +224,13 @@
Flash memory access on 4G Systems MTX-1 Board. If you have one of
these boards and would like to use the flash chips on it, say 'Y'.
+config MTD_BCM963XX
+ tristate "BCM963xx Flash device"
+ depends on MIPS && MIPS_BRCM
+ help
+ This driver seems to detect and provide a valid flash map to the system
+ of course, it needs checking and testing.
+
config MTD_DILNETPC
tristate "CFI Flash device mapped on DIL/Net PC"
depends on X86 && MTD_CONCAT && MTD_PARTITIONS && MTD_CFI_INTELEXT
diff -urN linux-2.6.16.7/drivers/mtd/maps/Makefile linux-2.6.16.7-brcm63xx/drivers/mtd/maps/Makefile
--- linux-2.6.16.7/drivers/mtd/maps/Makefile 2006-04-17 23:53:25.000000000 +0200
+++ linux-2.6.16.7-brcm63xx/drivers/mtd/maps/Makefile 2006-07-07 22:01:29.000000000 +0200
@@ -71,3 +71,4 @@
obj-$(CONFIG_MTD_OMAP_NOR) += omap_nor.o
obj-$(CONFIG_MTD_MTX1) += mtx-1_flash.o
obj-$(CONFIG_MTD_TQM834x) += tqm834x.o
+obj-$(CONFIG_MTD_BCM963XX) += bcm963xx.o
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