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>

6 files changed, 164 insertions, 0 deletions

diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index 229919e9744c..58cc26d53092 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -190,6 +190,11 @@ config S3C_DEV_NAND
         help
           Compile in platform device definition for NAND controller
 
+config S3C_DEV_ONENAND
+        bool
+        help
+          Compile in platform device definition for OneNAND controller
+
 config S3C_DEV_RTC
         bool
         help
diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile
index 48288499a3b9..595d86b8b893 100644
--- a/arch/arm/plat-samsung/Makefile
+++ b/arch/arm/plat-samsung/Makefile
@@ -41,6 +41,7 @@ obj-y				+= dev-uart.o
 obj-$(CONFIG_S3C_DEV_USB_HOST)  += dev-usb.o
 obj-$(CONFIG_S3C_DEV_USB_HSOTG) += dev-usb-hsotg.o
 obj-$(CONFIG_S3C_DEV_NAND)      += dev-nand.o
+obj-$(CONFIG_S3C_DEV_ONENAND)   += dev-onenand.o
 obj-$(CONFIG_S3C_DEV_RTC)       += dev-rtc.o
 
 obj-$(CONFIG_SAMSUNG_DEV_ADC)   += dev-adc.o
diff --git a/arch/arm/plat-samsung/dev-onenand.c b/arch/arm/plat-samsung/dev-onenand.c
new file mode 100644
index 000000000000..45ec73287d8c
--- /dev/null
+++ b/arch/arm/plat-samsung/dev-onenand.c
@@ -0,0 +1,55 @@
+/*
+ * linux/arch/arm/plat-samsung/dev-onenand.c
+ *
+ *  Copyright (c) 2008-2010 Samsung Electronics
+ *  Kyungmin Park <kyungmin.park@samsung.com>
+ *
+ * S3C64XX/S5PC100 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 s3c_onenand_resources[] = {
+        [0] = {
+                .start  = S3C_PA_ONENAND,
+                .end    = S3C_PA_ONENAND + 0x400 - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = S3C_PA_ONENAND_BUF,
+                .end    = S3C_PA_ONENAND_BUF + S3C_SZ_ONENAND_BUF - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        [2] = {
+                .start  = IRQ_ONENAND,
+                .end    = IRQ_ONENAND,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+struct platform_device s3c_device_onenand = {
+        .name           = "samsung-onenand",
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(s3c_onenand_resources),
+        .resource       = s3c_onenand_resources,
+};
+
+void s3c_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__);
+        s3c_device_onenand.dev.platform_data = pd;
+}
diff --git a/arch/arm/plat-samsung/include/plat/devs.h b/arch/arm/plat-samsung/include/plat/devs.h
index ef69e56b2885..57ec56ade025 100644
--- a/arch/arm/plat-samsung/include/plat/devs.h
+++ b/arch/arm/plat-samsung/include/plat/devs.h
@@ -60,6 +60,9 @@ extern struct platform_device s3c_device_spi1;
 extern struct platform_device s3c_device_hwmon;
 
 extern struct platform_device s3c_device_nand;
+extern struct platform_device s3c_device_onenand;
+extern struct platform_device s3c64xx_device_onenand1;
+extern struct platform_device s5pc110_device_onenand;
 
 extern struct platform_device s3c_device_usbgadget;
 extern struct platform_device s3c_device_usb_hsotg;
diff --git a/arch/arm/plat-samsung/include/plat/onenand-core.h b/arch/arm/plat-samsung/include/plat/onenand-core.h
new file mode 100644
index 000000000000..7701cb7020c8
--- /dev/null
+++ b/arch/arm/plat-samsung/include/plat/onenand-core.h
@@ -0,0 +1,37 @@
+/*
+ * linux/arch/arm/plat-samsung/onenand-core.h
+ *
+ *  Copyright (c) 2010 Samsung Electronics
+ *  Kyungmin Park <kyungmin.park@samsung.com>
+ *  Marek Szyprowski <m.szyprowski@samsung.com>
+ *
+ * Samsung OneNAD Controller core functions
+ *
+ * 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.
+*/
+
+#ifndef __ASM_ARCH_ONENAND_CORE_H
+#define __ASM_ARCH_ONENAND_CORE_H __FILE__
+
+/* These functions are only for use with the core support code, such as
+ * the cpu specific initialisation code
+ */
+
+/* re-define device name depending on support. */
+static inline void s3c_onenand_setname(char *name)
+{
+#ifdef CONFIG_S3C_DEV_ONENAND
+        s3c_device_onenand.name = name;
+#endif
+}
+
+static inline void s3c64xx_onenand1_setname(char *name)
+{
+#ifdef CONFIG_S3C64XX_DEV_ONENAND1
+        s3c64xx_device_onenand1.name = name;
+#endif
+}
+
+#endif /* __ASM_ARCH_ONENAND_CORE_H */
diff --git a/arch/arm/plat-samsung/include/plat/regs-onenand.h b/arch/arm/plat-samsung/include/plat/regs-onenand.h
new file mode 100644
index 000000000000..930ea8b88ed3
--- /dev/null
+++ b/arch/arm/plat-samsung/include/plat/regs-onenand.h
@@ -0,0 +1,63 @@
+/*
+ * linux/arch/arm/plat-s3c/include/plat/regs-onenand.h
+ *
+ *  Copyright (C) 2008-2010 Samsung Electronics
+ *  Kyungmin Park <kyungmin.park@samsung.com>
+ *
+ * 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.
+ */
+#ifndef __SAMSUNG_ONENAND_H__
+#define __SAMSUNG_ONENAND_H__
+
+#include <mach/hardware.h>
+
+/*
+ * OneNAND Controller
+ */
+#define MEM_CFG_OFFSET          0x0000
+#define BURST_LEN_OFFSET        0x0010
+#define MEM_RESET_OFFSET        0x0020
+#define INT_ERR_STAT_OFFSET     0x0030
+#define INT_ERR_MASK_OFFSET     0x0040
+#define INT_ERR_ACK_OFFSET      0x0050
+#define ECC_ERR_STAT_OFFSET     0x0060
+#define MANUFACT_ID_OFFSET      0x0070
+#define DEVICE_ID_OFFSET        0x0080
+#define DATA_BUF_SIZE_OFFSET    0x0090
+#define BOOT_BUF_SIZE_OFFSET    0x00A0
+#define BUF_AMOUNT_OFFSET       0x00B0
+#define TECH_OFFSET             0x00C0
+#define FBA_WIDTH_OFFSET        0x00D0
+#define FPA_WIDTH_OFFSET        0x00E0
+#define FSA_WIDTH_OFFSET        0x00F0
+#define TRANS_SPARE_OFFSET      0x0140
+#define DBS_DFS_WIDTH_OFFSET    0x0160
+#define INT_PIN_ENABLE_OFFSET   0x01A0
+#define ACC_CLOCK_OFFSET        0x01C0
+#define FLASH_VER_ID_OFFSET     0x01F0
+#define FLASH_AUX_CNTRL_OFFSET  0x0300          /* s3c64xx only */
+
+#define ONENAND_MEM_RESET_HOT   0x3
+#define ONENAND_MEM_RESET_COLD  0x2
+#define ONENAND_MEM_RESET_WARM  0x1
+
+#define CACHE_OP_ERR            (1 << 13)
+#define RST_CMP                 (1 << 12)
+#define RDY_ACT                 (1 << 11)
+#define INT_ACT                 (1 << 10)
+#define UNSUP_CMD               (1 << 9)
+#define LOCKED_BLK              (1 << 8)
+#define BLK_RW_CMP              (1 << 7)
+#define ERS_CMP                 (1 << 6)
+#define PGM_CMP                 (1 << 5)
+#define LOAD_CMP                (1 << 4)
+#define ERS_FAIL                (1 << 3)
+#define PGM_FAIL                (1 << 2)
+#define INT_TO                  (1 << 1)
+#define LD_FAIL_ECC_ERR         (1 << 0)
+
+#define TSRF                    (1 << 0)
+
+#endif