---

yaml
---
r: 123771
b: refs/heads/master
c: 3620c0d
h: refs/heads/master
i:
  123769: ff69c9e
  123767: 257d77b
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 4a7b98d7e7f1c05331bfa82e2427f896e57de35b
+refs/heads/master: 3620c0dccfd35cd39324508d8c962d10f9a44ead

trunk/arch/arm/mach-mx2/pcm038.c

@@ -19,6 +19,7 @@
 
 #include <linux/platform_device.h>
 #include <linux/mtd/physmap.h>
+#include <linux/mtd/plat-ram.h>
 #include <asm/mach/arch.h>
 #include <asm/mach-types.h>
 #include <mach/common.h>
@@ -30,6 +31,31 @@
 
 #include "devices.h"
 
+/*
+ * Phytec's PCM038 comes with 2MiB battery buffered SRAM,
+ * 16 bit width
+ */
+
+static struct platdata_mtd_ram pcm038_sram_data = {
+	.bankwidth = 2,
+};
+
+static struct resource pcm038_sram_resource = {
+	.start = CS1_BASE_ADDR,
+	.end   = CS1_BASE_ADDR + 512 * 1024 - 1,
+	.flags = IORESOURCE_MEM,
+};
+
+static struct platform_device pcm038_sram_mtd_device = {
+	.name = "mtd-ram",
+	.id = 0,
+	.dev = {
+		.platform_data = &pcm038_sram_data,
+	},
+	.num_resources = 1,
+	.resource = &pcm038_sram_resource,
+};
+
 /*
  * Phytec's phyCORE-i.MX27 comes with 32MiB flash,
  * 16 bit width
@@ -164,11 +190,22 @@ static void gpio_fec_inactive(void)
 static struct platform_device *platform_devices[] __initdata = {
 	&pcm038_nor_mtd_device,
 	&mxc_w1_master_device,
+	&pcm038_sram_mtd_device,
 };
 
+/* On pcm038 there's a sram attached to CS1, we enable the chipselect here and
+ * setup other stuffs to access the sram. */
+static void __init pcm038_init_sram(void)
+{
+	__raw_writel(0x0000d843, CSCR_U(1));
+	__raw_writel(0x22252521, CSCR_L(1));
+	__raw_writel(0x22220a00, CSCR_A(1));
+}
+
 static void __init pcm038_init(void)
 {
 	gpio_fec_active();
+	pcm038_init_sram();
 
 	mxc_register_device(&mxc_uart_device0, &uart_pdata[0]);
 	mxc_register_device(&mxc_uart_device1, &uart_pdata[1]);