[MIPS] WGT634U: Register MTD as platform device.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 66 insertions, 3 deletions

diff --git a/arch/mips/bcm47xx/wgt634u.c b/arch/mips/bcm47xx/wgt634u.c
index 5a017eaee712..997e54001717 100644
--- a/arch/mips/bcm47xx/wgt634u.c
+++ b/arch/mips/bcm47xx/wgt634u.c
@@ -9,6 +9,7 @@
 #include <linux/platform_device.h>
 #include <linux/module.h>
 #include <linux/leds.h>
+#include <linux/mtd/physmap.h>
 #include <linux/ssb/ssb.h>
 #include <asm/mach-bcm47xx/bcm47xx.h>
 
@@ -43,6 +44,61 @@ static struct platform_device wgt634u_gpio_leds = {
         }
 };
 
+
+/* 8MiB flash. The struct mtd_partition matches original Netgear WGT634U
+   firmware. */
+static struct mtd_partition wgt634u_partitions[] = {
+        {
+                .name       = "cfe",
+                .offset     = 0,
+                .size       = 0x60000,          /* 384k */
+                .mask_flags = MTD_WRITEABLE     /* force read-only */
+        },
+        {
+                .name   = "config",
+                .offset = 0x60000,
+                .size   = 0x20000               /* 128k */
+        },
+        {
+                .name   = "linux",
+                .offset = 0x80000,
+                .size   = 0x140000              /* 1280k */
+        },
+        {
+                .name   = "jffs",
+                .offset = 0x1c0000,
+                .size   = 0x620000              /* 6272k */
+        },
+        {
+                .name   = "nvram",
+                .offset = 0x7e0000,
+                .size   = 0x20000               /* 128k */
+        },
+};
+
+static struct physmap_flash_data wgt634u_flash_data = {
+        .parts    = wgt634u_partitions,
+        .nr_parts = ARRAY_SIZE(wgt634u_partitions)
+};
+
+static struct resource wgt634u_flash_resource = {
+        .flags = IORESOURCE_MEM,
+};
+
+static struct platform_device wgt634u_flash = {
+        .name          = "physmap-flash",
+        .id            = 0,
+        .dev           = { .platform_data = &wgt634u_flash_data, },
+        .resource      = &wgt634u_flash_resource,
+        .num_resources = 1,
+};
+
+/* Platform devices */
+static struct platform_device *wgt634u_devices[] __initdata = {
+        &wgt634u_flash,
+        &wgt634u_gpio_leds,
+};
+
 static int __init wgt634u_init(void)
 {
         /* There is no easy way to detect that we are running on a WGT634U
@@ -54,9 +110,16 @@ static int __init wgt634u_init(void)
 
         if (et0mac[0] == 0x00 &&
             ((et0mac[1] == 0x09 && et0mac[2] == 0x5b) ||
-             (et0mac[1] == 0x0f && et0mac[2] == 0xb5)))
-                return platform_device_register(&wgt634u_gpio_leds);
-        else
+             (et0mac[1] == 0x0f && et0mac[2] == 0xb5))) {
+                struct ssb_mipscore *mcore = &ssb_bcm47xx.mipscore;
+                wgt634u_flash_data.width = mcore->flash_buswidth;
+                wgt634u_flash_resource.start = mcore->flash_window;
+                wgt634u_flash_resource.end = mcore->flash_window
+                                           + mcore->flash_window_size
+                                           - 1;
+                return platform_add_devices(wgt634u_devices,
+                                            ARRAY_SIZE(wgt634u_devices));
+        } else
                 return -ENODEV;
 }