[PATCH 5/7] S3C64XX: Add platform data and driver resources for IDE controller driver.

[Thomas Abraham]

This patch adds the following for S3C IDE driver.
	- IDE plafrom data strucure definition
	- IDE driver resources
	- IDE controller GPIO setup code
	- IDE platform data setup code
	- IDE platform device definition

Signed-off-by: Abhilash Kesavan <a.kesavan at samsung.com>
Signed-off-by: Thomas Abraham <thomas.ab at samsung.com>
---
 arch/arm/plat-s3c/include/plat/devs.h |    1 +
 arch/arm/plat-s3c/include/plat/ide.h  |   36 +++++++++++++
 arch/arm/plat-s3c64xx/dev-ide.c       |   88 +++++++++++++++++++++++++++++++++
 3 files changed, 125 insertions(+), 0 deletions(-)
 create mode 100644 arch/arm/plat-s3c/include/plat/ide.h
 create mode 100644 arch/arm/plat-s3c64xx/dev-ide.c

diff --git a/arch/arm/plat-s3c/include/plat/devs.h b/arch/arm/plat-s3c/include/plat/devs.h
index 0f540ea..4ae0c6a 100644
--- a/arch/arm/plat-s3c/include/plat/devs.h
+++ b/arch/arm/plat-s3c/include/plat/devs.h
@@ -52,6 +52,7 @@ extern struct platform_device s3c_device_nand;
 
 extern struct platform_device s3c_device_usbgadget;
 extern struct platform_device s3c_device_usb_hsotg;
+extern struct platform_device s3c_device_cfcon;
 
 /* s3c2440 specific devices */
 
diff --git a/arch/arm/plat-s3c/include/plat/ide.h b/arch/arm/plat-s3c/include/plat/ide.h
new file mode 100644
index 0000000..3983891
--- /dev/null
+++ b/arch/arm/plat-s3c/include/plat/ide.h
@@ -0,0 +1,36 @@
+/* linux/arch/arm/plat-s3c/include/plat/ide.h
+ *
+ * Copyright (C) 2009 Samsung Electronics
+ * 	http://samsungsemi.com
+ *
+ * S3C IDE Platform data definitions
+ *
+ * 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 __PLAT_S3C_IDE_H
+#define __PLAT_S3C_IDE_H __FILE__
+
+/**
+ * struct s3c_ide_platdata - S3C IDE driver platform data.
+ * @setup_gpio: Platform specific ide gpio setup function.
+ *
+ */
+struct s3c_ide_platdata {
+	void 	(*setup_gpio)(void);
+};
+
+/*
+ * s3c_ide_set_platdata() - Setup the platform specifc data for IDE driver.
+ * @pdata: Platform data for IDE driver.
+ */
+extern void s3c_ide_set_platdata(struct s3c_ide_platdata *pdata);
+
+/*
+ * s3c64xx_ide_setup_gpio() - Platform specific ide gpio setup function.
+ */
+extern void s3c64xx_ide_setup_gpio(void);
+
+#endif
diff --git a/arch/arm/plat-s3c64xx/dev-ide.c b/arch/arm/plat-s3c64xx/dev-ide.c
new file mode 100644
index 0000000..946d323
--- /dev/null
+++ b/arch/arm/plat-s3c64xx/dev-ide.c
@@ -0,0 +1,88 @@
+/* linux/arch/arm/plat-s3c64xx/dev-ide.c
+ *
+ * Copyright (C) 2009 Samsung Electronics
+ * 	http://samsungsemi.com
+ *
+ * S3C IDE device definition.
+ *
+ * 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/types.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/ata.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/irq.h>
+#include <mach/hardware.h>
+#include <mach/map.h>
+#include <plat/regs-clock.h>
+#include <plat/devs.h>
+#include <plat/gpio-cfg.h>
+#include <mach/gpio.h>
+#include <plat/ide.h>
+
+static struct resource s3c_cfcon_resource[] = {
+	[0] = {
+		.start  = S3C64XX_PA_CFCON,
+		.end    = S3C64XX_PA_CFCON + SZ_1M - 1,
+		.flags  = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start  = IRQ_CFCON,
+		.end    = IRQ_CFCON,
+		.flags  = IORESOURCE_IRQ,
+	},
+};
+
+struct platform_device s3c_device_cfcon = {
+	.name           = "s3c-ide",
+	.id             = 0,
+	.num_resources  = ARRAY_SIZE(s3c_cfcon_resource),
+	.resource       = s3c_cfcon_resource,
+};
+EXPORT_SYMBOL(s3c_device_cfcon);
+
+void s3c_ide_set_platdata(struct s3c_ide_platdata *pdata)
+{
+	struct s3c_ide_platdata *pd;
+
+	pd = (struct s3c_ide_platdata *)kmemdup(pdata,
+		sizeof(struct s3c_ide_platdata), GFP_KERNEL);
+	if (!pd) {
+		printk(KERN_ERR "%s: no memory for platform data\n", __func__);
+		return;
+	}
+	s3c_device_cfcon.dev.platform_data = pd;
+}
+
+void s3c64xx_ide_setup_gpio(void)
+{
+	u32 reg;
+	u8 i;
+
+	reg = __raw_readl(S3C_MEM_SYS_CFG) & (~0x3f);
+	 __raw_writel(reg | 0x4030, S3C_MEM_SYS_CFG);
+
+	s3c_gpio_cfgpin(S3C64XX_GPB(4), S3C_GPIO_SFN(4));
+
+	/* Set XhiDATA[15:0] pins as CF Data[15:0] */
+	for (i = 0; i < 16; i++)
+		s3c_gpio_cfgpin(S3C64XX_GPK(i), S3C_GPIO_SFN(5));
+
+	/* Set XhiADDR[2:0] pins as CF ADDR[2:0] */
+	for (i = 0; i < 3; i++)
+		s3c_gpio_cfgpin(S3C64XX_GPL(i), S3C_GPIO_SFN(6));
+
+	/* Set Xhi ctrl pins as CF ctrl pins(IORDY, IOWR, IORD, CE[0:1]) */
+	s3c_gpio_cfgpin(S3C64XX_GPM(5), S3C_GPIO_SFN(0));
+	for (i = 0; i < 5; i++)
+		s3c_gpio_cfgpin(S3C64XX_GPM(i), S3C_GPIO_SFN(6));
+}
+
+
-- 
1.5.3.4