From e734ace5baa04e0e8af1d4483475fbd6bd2b32a1 Mon Sep 17 00:00:00 2001 From: Axel Gembe Date: Mon, 12 May 2008 18:54:09 +0200 Subject: [PATCH] bcm963xx: flashmap support Signed-off-by: Axel Gembe --- drivers/mtd/maps/Kconfig | 7 +++++++ drivers/mtd/maps/Makefile | 1 + drivers/mtd/redboot.c | 13 ++++++++++--- 3 files changed, 18 insertions(+), 3 deletions(-) Index: linux-2.6.25.4/drivers/mtd/maps/Kconfig =================================================================== --- linux-2.6.25.4.orig/drivers/mtd/maps/Kconfig +++ linux-2.6.25.4/drivers/mtd/maps/Kconfig @@ -262,6 +262,13 @@ config MTD_MTX1 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 && BCM963XX + help + Flash memory access on BCM963xx boards. Currently only works with + RedBoot and CFE. + config MTD_DILNETPC tristate "CFI Flash device mapped on DIL/Net PC" depends on X86 && MTD_CONCAT && MTD_PARTITIONS && MTD_CFI_INTELEXT Index: linux-2.6.25.4/drivers/mtd/maps/Makefile =================================================================== --- linux-2.6.25.4.orig/drivers/mtd/maps/Makefile +++ linux-2.6.25.4/drivers/mtd/maps/Makefile @@ -68,3 +68,4 @@ obj-$(CONFIG_MTD_PLATRAM) += plat-ram.o obj-$(CONFIG_MTD_OMAP_NOR) += omap_nor.o obj-$(CONFIG_MTD_MTX1) += mtx-1_flash.o obj-$(CONFIG_MTD_INTEL_VR_NOR) += intel_vr_nor.o +obj-$(CONFIG_MTD_BCM963XX) += bcm963xx-flash.o Index: linux-2.6.25.4/drivers/mtd/redboot.c =================================================================== --- linux-2.6.25.4.orig/drivers/mtd/redboot.c +++ linux-2.6.25.4/drivers/mtd/redboot.c @@ -39,7 +39,7 @@ static inline int redboot_checksum(struc return 1; } -static int parse_redboot_partitions(struct mtd_info *master, +int parse_redboot_partitions(struct mtd_info *master, struct mtd_partition **pparts, unsigned long fis_origin) { @@ -161,6 +161,14 @@ static int parse_redboot_partitions(stru goto out; } + if (!fis_origin) { + for (i = 0; i < numslots; i++) { + if (!strncmp(buf[i].name, "RedBoot", 8)) { + fis_origin = (buf[i].flash_base & (master->size << 1) - 1); + } + } + } + for (i = 0; i < numslots; i++) { struct fis_list *new_fl, **prev; @@ -183,9 +191,8 @@ static int parse_redboot_partitions(stru new_fl->img = &buf[i]; if (fis_origin) { buf[i].flash_base -= fis_origin; - } else { - buf[i].flash_base &= master->size-1; } + buf[i].flash_base &= (master->size << 1) - 1; /* I'm sure the JFFS2 code has done me permanent damage. * I now think the following is _normal_