ARM MXC: Armadillo 500 add NOR flash device support (resend).

This patch add support for NOR flash mapping through the physmap driver.
The purpose is to maintain the original Atmark partition model.

Signed-off-by: Alberto Panizzo <maramaopercheseimorto@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

diff --git a/arch/arm/mach-mx3/armadillo5x0.c b/arch/arm/mach-mx3/armadillo5x0.c
index 5411810..38d99e6 100644 (file)
--- a/arch/arm/mach-mx3/armadillo5x0.c
+++ b/arch/arm/mach-mx3/armadillo5x0.c
@@ -31,6 +31,7 @@
 #include <linux/smsc911x.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
+#include <linux/mtd/physmap.h>
 
 #include <mach/hardware.h>
 #include <asm/mach-types.h>
@@ -96,6 +97,48 @@ static int armadillo5x0_pins[] = {
 
 };
 
+/*
+ * MTD NOR Flash
+ */
+static struct mtd_partition armadillo5x0_nor_flash_partitions[] = {
+       {
+               .name           = "nor.bootloader",
+               .offset         = 0x00000000,
+               .size           = 4*32*1024,
+       }, {
+               .name           = "nor.kernel",
+               .offset         = MTDPART_OFS_APPEND,
+               .size           = 16*128*1024,
+       }, {
+               .name           = "nor.userland",
+               .offset         = MTDPART_OFS_APPEND,
+               .size           = 110*128*1024,
+       }, {
+               .name           = "nor.config",
+               .offset         = MTDPART_OFS_APPEND,
+               .size           = 1*128*1024,
+       },
+};
+
+static struct physmap_flash_data armadillo5x0_nor_flash_pdata = {
+       .width          = 2,
+       .parts          = armadillo5x0_nor_flash_partitions,
+       .nr_parts       = ARRAY_SIZE(armadillo5x0_nor_flash_partitions),
+};
+
+static struct resource armadillo5x0_nor_flash_resource = {
+       .flags          = IORESOURCE_MEM,
+       .start          = CS0_BASE_ADDR,
+       .end            = CS0_BASE_ADDR + SZ_64M - 1,
+};
+
+static struct platform_device armadillo5x0_nor_flash = {
+       .name                   = "physmap-flash",
+       .id                     = -1,
+       .num_resources          = 1,
+       .resource               = &armadillo5x0_nor_flash_resource,
+};
+
 /*
  * FB support
  */
@@ -272,6 +315,10 @@ static void __init armadillo5x0_init(void)
        /* Register FB */
        mxc_register_device(&mx3_ipu, &mx3_ipu_data);
        mxc_register_device(&mx3_fb, &mx3fb_pdata);
+
+       /* Register NOR Flash */
+       mxc_register_device(&armadillo5x0_nor_flash,
+                           &armadillo5x0_nor_flash_pdata);
 }
 
 static void __init armadillo5x0_timer_init(void)