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authorJoern Engel <joern@wohnheim.fh-wedel.de>2005-09-18 11:46:45 +0100
committerThomas Gleixner <tglx@mtd.linutronix.de>2005-11-06 21:58:57 +0100
commitb523b3bac3a745fefd6f604082f2ffa09b808e5e (patch)
tree9eb77323c6fe5e7d660d21928808aaf86d377c9f /drivers/mtd
parent34c0e906718fa2f85b54b937f79bffdca48ee864 (diff)
downloadop-kernel-dev-b523b3bac3a745fefd6f604082f2ffa09b808e5e.zip
op-kernel-dev-b523b3bac3a745fefd6f604082f2ffa09b808e5e.tar.gz
[MTD] maps: Add support for MTX-1 Flash device
Add support for "4G Systems MTX-1 Flash device", better known as meshcube. From: Bruno Randolf <bruno.randolf@4g-systems.biz> Signed-off-by: Joern Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/maps/Kconfig9
-rw-r--r--drivers/mtd/maps/Makefile3
-rw-r--r--drivers/mtd/maps/mtx-1_flash.c96
3 files changed, 106 insertions, 2 deletions
diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index 8e3e93d..7f1ce08 100644
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -1,5 +1,5 @@
# drivers/mtd/maps/Kconfig
-# $Id: Kconfig,v 1.58 2005/09/14 19:14:13 tpoynor Exp $
+# $Id: Kconfig,v 1.59 2005/09/18 10:46:41 joern Exp $
menu "Mapping drivers for chip access"
depends on MTD!=n
@@ -214,6 +214,13 @@ config MTD_ALCHEMY
help
Flash memory access on AMD Alchemy Pb/Db/RDK Reference Boards
+config MTD_MTX1
+ tristate "4G Systems MTX-1 Flash device"
+ depends on MIPS && MIPS_MTX1
+ help
+ 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_DILNETPC
tristate "CFI Flash device mapped on DIL/Net PC"
depends on X86 && MTD_CONCAT && MTD_PARTITIONS && MTD_CFI_INTELEXT
diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile
index 0955178..2afa806 100644
--- a/drivers/mtd/maps/Makefile
+++ b/drivers/mtd/maps/Makefile
@@ -1,7 +1,7 @@
#
# linux/drivers/maps/Makefile
#
-# $Id: Makefile.common,v 1.31 2005/09/14 19:14:13 tpoynor Exp $
+# $Id: Makefile.common,v 1.32 2005/09/18 10:46:41 joern Exp $
ifeq ($(CONFIG_MTD_COMPLEX_MAPPINGS),y)
obj-$(CONFIG_MTD) += map_funcs.o
@@ -71,3 +71,4 @@ obj-$(CONFIG_MTD_SHARP_SL) += sharpsl-flash.o
obj-$(CONFIG_MTD_PLATRAM) += plat-ram.o
obj-$(CONFIG_MTD_OMAP_NOR) += omap_nor.o
obj-$(CONFIG_MTD_PQ2FADS) += pq2fads.o
+obj-$(CONFIG_MTD_MTX1) += mtx-1_flash.o
diff --git a/drivers/mtd/maps/mtx-1_flash.c b/drivers/mtd/maps/mtx-1_flash.c
new file mode 100644
index 0000000..43f4416
--- /dev/null
+++ b/drivers/mtd/maps/mtx-1_flash.c
@@ -0,0 +1,96 @@
+/*
+ * Flash memory access on 4G Systems MTX-1 boards
+ *
+ * $Id: mtx-1_flash.c,v 1.1 2005/09/18 10:46:41 joern Exp $
+ *
+ * (C) 2005 Bruno Randolf <bruno.randolf@4g-systems.biz>
+ * (C) 2005 Jörn Engel <joern@wohnheim.fh-wedel.de>
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/partitions.h>
+
+#include <asm/io.h>
+
+static struct map_info mtx1_map = {
+ .name = "MTX-1 flash",
+ .bankwidth = 4,
+ .size = 0x2000000,
+ .phys = 0x1E000000,
+};
+
+static struct mtd_partition mtx1_partitions[] = {
+ {
+ .name = "filesystem",
+ .size = 0x01C00000,
+ .offset = 0,
+ },{
+ .name = "yamon",
+ .size = 0x00100000,
+ .offset = MTDPART_OFS_APPEND,
+ .mask_flags = MTD_WRITEABLE,
+ },{
+ .name = "kernel",
+ .size = 0x002c0000,
+ .offset = MTDPART_OFS_APPEND,
+ },{
+ .name = "yamon env",
+ .size = 0x00040000,
+ .offset = MTDPART_OFS_APPEND,
+ }
+};
+
+static struct mtd_info *mtx1_mtd;
+
+int __init mtx1_mtd_init(void)
+{
+ int ret = -ENXIO;
+
+ simple_map_init(&mtx1_map);
+
+ mtx1_map.virt = ioremap(mtx1_map.phys, mtx1_map.size);
+ if (!mtx1_map.virt)
+ return -EIO;
+
+ mtx1_mtd = do_map_probe("cfi_probe", &mtx1_map);
+ if (!mtx1_mtd)
+ goto err;
+
+ mtx1_mtd->owner = THIS_MODULE;
+
+ ret = add_mtd_partitions(mtx1_mtd, mtx1_partitions,
+ ARRAY_SIZE(mtx1_partitions));
+ if (ret)
+ goto err;
+
+ return 0;
+
+err:
+ iounmap(mtx1_map.virt);
+ return ret;
+}
+
+static void __exit mtx1_mtd_cleanup(void)
+{
+ if (mtx1_mtd) {
+ del_mtd_partitions(mtx1_mtd);
+ map_destroy(mtx1_mtd);
+ }
+ if (mtx1_map.virt)
+ iounmap(mtx1_map.virt);
+}
+
+module_init(mtx1_mtd_init);
+module_exit(mtx1_mtd_cleanup);
+
+MODULE_AUTHOR("Bruno Randolf <bruno.randolf@4g-systems.biz>");
+MODULE_DESCRIPTION("MTX-1 flash map");
+MODULE_LICENSE("GPL");
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