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authorJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2009-04-27 12:54:41 +0400
committerPaul Mundt <lethal@linux-sh.org>2009-04-27 12:54:41 +0400
commitc2e0090c668fc99f5be65fd9907da781cb6a2ef5 (patch)
tree3266373125f249948ba9aad296e8808ec6a6c36e /arch/sh/boards/mach-r2d
parent47c8a08bbe77ad3c06f63919a14b0f0b0cd54390 (diff)
downloadlinux-c2e0090c668fc99f5be65fd9907da781cb6a2ef5.tar.xz
sh: mach-r2d: add physmap-flash support for R2D+ boards.
The RTS7751R2D_1 boards only support 1MB of socket-mounted MBM29F040 flash, which we just leave alone as it's not terribly interesting. This adds support for the s29gl256p on the r2d+ boards that makes a bit more sense to expose to the user. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/boards/mach-r2d')
-rw-r--r--arch/sh/boards/mach-r2d/setup.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/sh/boards/mach-r2d/setup.c b/arch/sh/boards/mach-r2d/setup.c
index c585be00956e..a625ecb93e47 100644
--- a/arch/sh/boards/mach-r2d/setup.c
+++ b/arch/sh/boards/mach-r2d/setup.c
@@ -10,6 +10,9 @@
*/
#include <linux/init.h>
#include <linux/platform_device.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
#include <linux/ata_platform.h>
#include <linux/sm501.h>
#include <linux/sm501-regs.h>
@@ -181,6 +184,50 @@ static struct platform_device sm501_device = {
.resource = sm501_resources,
};
+static struct mtd_partition r2d_partitions[] = {
+ {
+ .name = "U-Boot",
+ .offset = 0x00000000,
+ .size = 0x00040000,
+ .mask_flags = MTD_WRITEABLE,
+ }, {
+ .name = "Environment",
+ .offset = MTDPART_OFS_NXTBLK,
+ .size = 0x00040000,
+ .mask_flags = MTD_WRITEABLE,
+ }, {
+ .name = "Kernel",
+ .offset = MTDPART_OFS_NXTBLK,
+ .size = 0x001c0000,
+ }, {
+ .name = "Flash_FS",
+ .offset = MTDPART_OFS_NXTBLK,
+ .size = MTDPART_SIZ_FULL,
+ }
+};
+
+static struct physmap_flash_data flash_data = {
+ .width = 2,
+ .nr_parts = ARRAY_SIZE(r2d_partitions),
+ .parts = r2d_partitions,
+};
+
+static struct resource flash_resource = {
+ .start = 0x00000000,
+ .end = 0x02000000,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct platform_device flash_device = {
+ .name = "physmap-flash",
+ .id = -1,
+ .resource = &flash_resource,
+ .num_resources = 1,
+ .dev = {
+ .platform_data = &flash_data,
+ },
+};
+
static struct platform_device *rts7751r2d_devices[] __initdata = {
&sm501_device,
&heartbeat_device,
@@ -203,6 +250,9 @@ static int __init rts7751r2d_devices_setup(void)
if (register_trapped_io(&cf_trapped_io) == 0)
platform_device_register(&cf_ide_device);
+ if (mach_is_r2d_plus())
+ platform_device_register(&flash_device);
+
spi_register_board_info(spi_bus, ARRAY_SIZE(spi_bus));
return platform_add_devices(rts7751r2d_devices,