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authorAtsushi Nemoto <anemo@mba.ocn.ne.jp>2008-08-19 22:55:11 +0900
committerRalf Baechle <ralf@linux-mips.org>2008-10-11 16:18:42 +0100
commit51f607c76e1e7bd089dcad97b6b0a58649be06a3 (patch)
treebcf9389a1e3bcd347d7c560163d2c014d804a162 /arch/mips/txx9/rbtx4938
parentc7b95bcb38ea492fd025008ef99501a2b90aa237 (diff)
MIPS: TXx9: Add mtd support
Add helper routines to register physmap-flash platform devices for NOR flashes. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/txx9/rbtx4938')
-rw-r--r--arch/mips/txx9/rbtx4938/setup.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/mips/txx9/rbtx4938/setup.c b/arch/mips/txx9/rbtx4938/setup.c
index 9ab48dec0fe8..e7bc5b8c7db8 100644
--- a/arch/mips/txx9/rbtx4938/setup.c
+++ b/arch/mips/txx9/rbtx4938/setup.c
@@ -15,6 +15,7 @@
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
+#include <linux/mtd/physmap.h>
#include <asm/reboot.h>
#include <asm/io.h>
@@ -294,6 +295,42 @@ static int __init rbtx4938_spi_init(void)
return 0;
}
+static void __init rbtx4938_mtd_init(void)
+{
+ struct physmap_flash_data pdata = {
+ .width = 4,
+ };
+
+ switch (readb(rbtx4938_bdipsw_addr) & 7) {
+ case 0:
+ /* Boot */
+ txx9_physmap_flash_init(0, 0x1fc00000, 0x400000, &pdata);
+ /* System */
+ txx9_physmap_flash_init(1, 0x1e000000, 0x1000000, &pdata);
+ break;
+ case 1:
+ /* System */
+ txx9_physmap_flash_init(0, 0x1f000000, 0x1000000, &pdata);
+ /* Boot */
+ txx9_physmap_flash_init(1, 0x1ec00000, 0x400000, &pdata);
+ break;
+ case 2:
+ /* Ext */
+ txx9_physmap_flash_init(0, 0x1f000000, 0x1000000, &pdata);
+ /* System */
+ txx9_physmap_flash_init(1, 0x1e000000, 0x1000000, &pdata);
+ /* Boot */
+ txx9_physmap_flash_init(2, 0x1dc00000, 0x400000, &pdata);
+ break;
+ case 3:
+ /* Boot */
+ txx9_physmap_flash_init(1, 0x1bc00000, 0x400000, &pdata);
+ /* System */
+ txx9_physmap_flash_init(2, 0x1a000000, 0x1000000, &pdata);
+ break;
+ }
+}
+
static void __init rbtx4938_arch_init(void)
{
gpiochip_add(&rbtx4938_spi_gpio_chip);
@@ -306,6 +343,7 @@ static void __init rbtx4938_device_init(void)
rbtx4938_ethaddr_init();
rbtx4938_ne_init();
tx4938_wdt_init();
+ rbtx4938_mtd_init();
}
struct txx9_board_vec rbtx4938_vec __initdata = {