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>

7 files changed, 85 insertions, 0 deletions

diff --git a/arch/arm/mach-s3c64xx/Kconfig b/arch/arm/mach-s3c64xx/Kconfig
index 69e9fbfea917..805da81095f0 100644
--- a/arch/arm/mach-s3c64xx/Kconfig
+++ b/arch/arm/mach-s3c64xx/Kconfig
@@ -35,6 +35,11 @@ config S3C64XX_SETUP_SDHCI
           Internal configuration for default SDHCI setup for S3C6400 and
           S3C6410 SoCs.
 
+config S3C64XX_DEV_ONENAND1
+        bool
+        help
+          Compile in platform device definition for OneNAND1 controller
+
 # platform specific device setup
 
 config S3C64XX_SETUP_I2C0
diff --git a/arch/arm/mach-s3c64xx/Makefile b/arch/arm/mach-s3c64xx/Makefile
index a10f1fc6b023..17883187c4cb 100644
--- a/arch/arm/mach-s3c64xx/Makefile
+++ b/arch/arm/mach-s3c64xx/Makefile
@@ -59,3 +59,4 @@ obj-y				+= dev-uart.o
 obj-y                           += dev-audio.o
 obj-$(CONFIG_S3C64XX_DEV_SPI)   += dev-spi.o
 obj-$(CONFIG_S3C64XX_DEV_TS)    += dev-ts.o
+obj-$(CONFIG_S3C64XX_DEV_ONENAND1)      += dev-onenand1.o
diff --git a/arch/arm/mach-s3c64xx/dev-onenand1.c b/arch/arm/mach-s3c64xx/dev-onenand1.c
new file mode 100644
index 000000000000..92ffd5bac104
--- /dev/null
+++ b/arch/arm/mach-s3c64xx/dev-onenand1.c
@@ -0,0 +1,55 @@
+/*
+ * linux/arch/arm/mach-s3c64xx/dev-onenand1.c
+ *
+ *  Copyright (c) 2008-2010 Samsung Electronics
+ *  Kyungmin Park <kyungmin.park@samsung.com>
+ *
+ * S3C64XX 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 s3c64xx_onenand1_resources[] = {
+        [0] = {
+                .start  = S3C64XX_PA_ONENAND1,
+                .end    = S3C64XX_PA_ONENAND1 + 0x400 - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = S3C64XX_PA_ONENAND1_BUF,
+                .end    = S3C64XX_PA_ONENAND1_BUF + S3C64XX_SZ_ONENAND1_BUF - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        [2] = {
+                .start  = IRQ_ONENAND1,
+                .end    = IRQ_ONENAND1,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+struct platform_device s3c64xx_device_onenand1 = {
+        .name           = "samsung-onenand",
+        .id             = 1,
+        .num_resources  = ARRAY_SIZE(s3c64xx_onenand1_resources),
+        .resource       = s3c64xx_onenand1_resources,
+};
+
+void s3c64xx_onenand1_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__);
+        s3c64xx_device_onenand1.dev.platform_data = pd;
+}
diff --git a/arch/arm/mach-s3c64xx/include/mach/irqs.h b/arch/arm/mach-s3c64xx/include/mach/irqs.h
index e9ab4ac0b9a8..8e2df26cf14a 100644
--- a/arch/arm/mach-s3c64xx/include/mach/irqs.h
+++ b/arch/arm/mach-s3c64xx/include/mach/irqs.h
@@ -212,5 +212,9 @@
 
 #define NR_IRQS (IRQ_BOARD_END + 1)
 
+/* Compatibility */
+
+#define IRQ_ONENAND     IRQ_ONENAND0
+
 #endif /* __ASM_MACH_S3C64XX_IRQS_H */
 
diff --git a/arch/arm/mach-s3c64xx/include/mach/map.h b/arch/arm/mach-s3c64xx/include/mach/map.h
index 9fdd50c8c767..b6fb8920b413 100644
--- a/arch/arm/mach-s3c64xx/include/mach/map.h
+++ b/arch/arm/mach-s3c64xx/include/mach/map.h
@@ -52,6 +52,16 @@
 
 #define S3C64XX_PA_SROM         (0x70000000)
 
+#define S3C64XX_PA_ONENAND0     (0x70100000)
+#define S3C64XX_PA_ONENAND0_BUF (0x20000000)
+#define S3C64XX_SZ_ONENAND0_BUF (SZ_64M)
+
+/* NAND and OneNAND1 controllers occupy the same register region
+   (depending on SoC POP version) */
+#define S3C64XX_PA_ONENAND1     (0x70200000)
+#define S3C64XX_PA_ONENAND1_BUF (0x28000000)
+#define S3C64XX_SZ_ONENAND1_BUF (SZ_64M)
+
 #define S3C64XX_PA_NAND         (0x70200000)
 #define S3C64XX_PA_FB           (0x77100000)
 #define S3C64XX_PA_USB_HSOTG    (0x7C000000)
@@ -99,6 +109,9 @@
 #define S3C_PA_IIC              S3C64XX_PA_IIC0
 #define S3C_PA_IIC1             S3C64XX_PA_IIC1
 #define S3C_PA_NAND             S3C64XX_PA_NAND
+#define S3C_PA_ONENAND          S3C64XX_PA_ONENAND0
+#define S3C_PA_ONENAND_BUF      S3C64XX_PA_ONENAND0_BUF
+#define S3C_SZ_ONENAND_BUF      S3C64XX_SZ_ONENAND0_BUF
 #define S3C_PA_FB               S3C64XX_PA_FB
 #define S3C_PA_USBHOST          S3C64XX_PA_USBHOST
 #define S3C_PA_USB_HSOTG        S3C64XX_PA_USB_HSOTG
diff --git a/arch/arm/mach-s3c64xx/s3c6400.c b/arch/arm/mach-s3c64xx/s3c6400.c
index 707e34e3afd1..5e93fe3f3f40 100644
--- a/arch/arm/mach-s3c64xx/s3c6400.c
+++ b/arch/arm/mach-s3c64xx/s3c6400.c
@@ -37,6 +37,7 @@
 #include <plat/clock.h>
 #include <plat/sdhci.h>
 #include <plat/iic-core.h>
+#include <plat/onenand-core.h>
 #include <mach/s3c6400.h>
 
 void __init s3c6400_map_io(void)
@@ -51,6 +52,9 @@ void __init s3c6400_map_io(void)
         s3c_i2c0_setname("s3c2440-i2c");
 
         s3c_device_nand.name = "s3c6400-nand";
+
+        s3c_onenand_setname("s3c6400-onenand");
+        s3c64xx_onenand1_setname("s3c6400-onenand");
 }
 
 void __init s3c6400_init_clocks(int xtal)
diff --git a/arch/arm/mach-s3c64xx/s3c6410.c b/arch/arm/mach-s3c64xx/s3c6410.c
index 3ab695c691ee..014401c39f36 100644
--- a/arch/arm/mach-s3c64xx/s3c6410.c
+++ b/arch/arm/mach-s3c64xx/s3c6410.c
@@ -39,6 +39,7 @@
 #include <plat/sdhci.h>
 #include <plat/iic-core.h>
 #include <plat/adc.h>
+#include <plat/onenand-core.h>
 #include <mach/s3c6400.h>
 #include <mach/s3c6410.h>
 
@@ -55,6 +56,8 @@ void __init s3c6410_map_io(void)
 
         s3c_device_adc.name     = "s3c64xx-adc";
         s3c_device_nand.name = "s3c6400-nand";
+        s3c_onenand_setname("s3c6410-onenand");
+        s3c64xx_onenand1_setname("s3c6410-onenand");
 }
 
 void __init s3c6410_init_clocks(int xtal)