-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
projects / openwrt.git / blobdiff