ARM: SAMSUNG: Add platform support code for OneNAND controller

This patch adds setup code for Samsung OneNAND controller driver. The
driver needs to be aware on which SoC it is running, so the actual
device id is being changed in cpu init code. S3C64xx SoCs have 2 OneNAND
controllers while S5PC100 and S5PC110 has only one.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
[ben-linux@fluff.org: sort map.h entries]
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

4 files changed, 59 insertions, 0 deletions

diff --git a/arch/arm/mach-s5pv210/Kconfig b/arch/arm/mach-s5pv210/Kconfig
index 7601c28e240b..ef063e2890c5 100644
--- a/arch/arm/mach-s5pv210/Kconfig
+++ b/arch/arm/mach-s5pv210/Kconfig
@@ -21,6 +21,11 @@ choice
         depends on ARCH_S5PV210
         default MACH_SMDKV210
 
+config S5PC110_DEV_ONENAND
+        bool
+        help
+          Compile in platform device definition for OneNAND1 controller
+
 config MACH_SMDKV210
         bool "SMDKV210"
         select CPU_S5PV210
diff --git a/arch/arm/mach-s5pv210/Makefile b/arch/arm/mach-s5pv210/Makefile
index 99827813d293..610b9496c186 100644
--- a/arch/arm/mach-s5pv210/Makefile
+++ b/arch/arm/mach-s5pv210/Makefile
@@ -23,3 +23,4 @@ obj-$(CONFIG_MACH_SMDKC110)	+= mach-smdkc110.o
 # device support
 
 obj-y                           += dev-audio.o
+obj-$(CONFIG_S5PC110_DEV_ONENAND) += dev-onenand.o
\ No newline at end of file
diff --git a/arch/arm/mach-s5pv210/dev-onenand.c b/arch/arm/mach-s5pv210/dev-onenand.c
new file mode 100644
index 000000000000..34997b752f93
--- /dev/null
+++ b/arch/arm/mach-s5pv210/dev-onenand.c
@@ -0,0 +1,50 @@
+/*
+ * linux/arch/arm/mach-s5pv210/dev-onenand.c
+ *
+ *  Copyright (c) 2008-2010 Samsung Electronics
+ *  Kyungmin Park <kyungmin.park@samsung.com>
+ *
+ * S5PC110 series device definition for OneNAND devices
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/onenand.h>
+
+#include <mach/irqs.h>
+#include <mach/map.h>
+
+static struct resource s5pc110_onenand_resources[] = {
+        [0] = {
+                .start  = S5PC110_PA_ONENAND,
+                .end    = S5PC110_PA_ONENAND + SZ_128K - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = S5PC110_PA_ONENAND_DMA,
+                .end    = S5PC110_PA_ONENAND_DMA + SZ_2K - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+struct platform_device s5pc110_device_onenand = {
+        .name           = "s5pc110-onenand",
+        .id             = -1,
+        .num_resources  = ARRAY_SIZE(s5pc110_onenand_resources),
+        .resource       = s5pc110_onenand_resources,
+};
+
+void s5pc110_onenand_set_platdata(struct onenand_platform_data *pdata)
+{
+        struct onenand_platform_data *pd;
+
+        pd = kmemdup(pdata, sizeof(struct onenand_platform_data), GFP_KERNEL);
+        if (!pd)
+                printk(KERN_ERR "%s: no memory for platform data\n", __func__);
+        s5pc110_device_onenand.dev.platform_data = pd;
+}
diff --git a/arch/arm/mach-s5pv210/include/mach/map.h b/arch/arm/mach-s5pv210/include/mach/map.h
index 5adcb9f26e44..d2a505fa1fff 100644
--- a/arch/arm/mach-s5pv210/include/mach/map.h
+++ b/arch/arm/mach-s5pv210/include/mach/map.h
@@ -16,6 +16,9 @@
 #include <plat/map-base.h>
 #include <plat/map-s5p.h>
 
+#define S5PC110_PA_ONENAND      (0xB0000000)
+#define S5PC110_PA_ONENAND_DMA  (0xB0600000)
+
 #define S5PV210_PA_CHIPID       (0xE0000000)
 #define S5P_PA_CHIPID           S5PV210_PA_CHIPID