[ARM] 5396/1: RealView: Use PATA_PLATFORM to access the CompactFlash

This driver adds the platform_device definitions to allow the use of
CompactFlash on the RealView PB11MPCore and PB-A8 platforms. Note that
the CompactFlash controller is expected to be initialised by the Boot
Monitor and support the True IDE mode.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-realview/Kconfig

@@ -35,6 +35,7 @@ config MACH_REALVIEW_PB11MP
 	bool "Support RealView/PB11MPCore platform"
 	select CPU_V6
 	select ARM_GIC
+	select HAVE_PATA_PLATFORM
 	help
 	  Include support for the ARM(R) RealView MPCore Platform Baseboard.
 	  PB11MPCore is a platform with an on-board ARM11MPCore and has
@@ -51,6 +52,7 @@ config MACH_REALVIEW_PBA8
 	bool "Support RealView/PB-A8 platform"
 	select CPU_V7
 	select ARM_GIC
+	select HAVE_PATA_PLATFORM
 	help
 	  Include support for the ARM(R) RealView Cortex-A8 Platform Baseboard.
 	  PB-A8 is a platform with an on-board Cortex-A8 and has support for

arch/arm/mach-realview/core.c

@@ -29,6 +29,7 @@
 #include <linux/clockchips.h>
 #include <linux/io.h>
 #include <linux/smc911x.h>
+#include <linux/ata_platform.h>
 
 #include <asm/clkdev.h>
 #include <asm/system.h>
@@ -150,6 +151,33 @@ int realview_eth_register(const char *name, struct resource *res)
 	return platform_device_register(&realview_eth_device);
 }
 
+static struct pata_platform_info pata_platform_data = {
+	.ioport_shift		= 1,
+};
+
+static struct resource pata_resources[] = {
+	[0] = {
+		.start		= REALVIEW_CF_BASE,
+		.end		= REALVIEW_CF_BASE + 0xff,
+		.flags		= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start		= REALVIEW_CF_BASE + 0x100,
+		.end		= REALVIEW_CF_BASE + SZ_4K - 1,
+		.flags		= IORESOURCE_MEM,
+	},
+};
+
+struct platform_device realview_cf_device = {
+	.name			= "pata_platform",
+	.id			= -1,
+	.num_resources		= ARRAY_SIZE(pata_resources),
+	.resource		= pata_resources,
+	.dev			= {
+		.platform_data	= &pata_platform_data,
+	},
+};
+
 static struct resource realview_i2c_resource = {
 	.start		= REALVIEW_I2C_BASE,
 	.end		= REALVIEW_I2C_BASE + SZ_4K - 1,

arch/arm/mach-realview/core.h

@@ -45,6 +45,7 @@ static struct amba_device name##_device = {			\
 }
 
 extern struct platform_device realview_flash_device;
+extern struct platform_device realview_cf_device;
 extern struct platform_device realview_i2c_device;
 extern struct mmc_platform_data realview_mmc0_plat_data;
 extern struct mmc_platform_data realview_mmc1_plat_data;

arch/arm/mach-realview/include/mach/board-pba8.h

@@ -45,8 +45,6 @@
 #define REALVIEW_PBA8_DMC_BASE			0x100E0000	/* DMC configuration */
 #define REALVIEW_PBA8_SMC_BASE			0x100E1000	/* SMC configuration */
 #define REALVIEW_PBA8_CAN_BASE			0x100E2000	/* CAN bus */
-#define REALVIEW_PBA8_CF_BASE			0x18000000	/* Compact flash */
-#define REALVIEW_PBA8_CF_MEM_BASE		0x18003000	/* SMC for Compact flash */
 #define REALVIEW_PBA8_GIC_CPU_BASE		0x1E000000	/* Generic interrupt controller CPU interface */
 #define REALVIEW_PBA8_FLASH0_BASE		0x40000000
 #define REALVIEW_PBA8_FLASH0_SIZE		SZ_64M

arch/arm/mach-realview/include/mach/platform.h

@@ -203,6 +203,12 @@
 #define REALVIEW_SDRAM67_BASE         0x70000000	/* SDRAM banks 6 and 7 */
 #define REALVIEW_LT_BASE              0x80000000	/* Logic Tile expansion */
 
+/*
+ * CompactFlash
+ */
+#define REALVIEW_CF_BASE		0x18000000	/* CompactFlash */
+#define REALVIEW_CF_MEM_BASE		0x18003000	/* SMC for CompactFlash */
+
 /*
  * Disk on Chip
  */

arch/arm/mach-realview/realview_pb11mp.c

@@ -230,31 +230,6 @@ static struct resource realview_pb11mp_smsc911x_resources[] = {
 	},
 };
 
-struct resource realview_pb11mp_cf_resources[] = {
-	[0] = {
-		.start		= REALVIEW_PB11MP_CF_BASE,
-		.end		= REALVIEW_PB11MP_CF_BASE + SZ_4K - 1,
-		.flags		= IORESOURCE_MEM,
-	},
-	[1] = {
-		.start		= REALVIEW_PB11MP_CF_MEM_BASE,
-		.end		= REALVIEW_PB11MP_CF_MEM_BASE + SZ_4K - 1,
-		.flags		= IORESOURCE_MEM,
-	},
-	[2] = {
-		.start		= -1,		/* FIXME: Find correct irq */
-		.end		= -1,
-		.flags		= IORESOURCE_IRQ,
-	},
-};
-
-struct platform_device realview_pb11mp_cf_device = {
-	.name		= "compactflash",
-	.id		= 0,
-	.num_resources	= ARRAY_SIZE(realview_pb11mp_cf_resources),
-	.resource	= realview_pb11mp_cf_resources,
-};
-
 static void __init gic_init_irq(void)
 {
 	unsigned int pldctrl;
@@ -308,7 +283,7 @@ static void __init realview_pb11mp_init(void)
 				ARRAY_SIZE(realview_pb11mp_flash_resource));
 	realview_eth_register(NULL, realview_pb11mp_smsc911x_resources);
 	platform_device_register(&realview_i2c_device);
-	platform_device_register(&realview_pb11mp_cf_device);
+	platform_device_register(&realview_cf_device);
 
 	for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
 		struct amba_device *d = amba_devs[i];

arch/arm/mach-realview/realview_pba8.c

@@ -221,31 +221,6 @@ static struct resource realview_pba8_smsc911x_resources[] = {
 	},
 };
 
-struct resource realview_pba8_cf_resources[] = {
-	[0] = {
-		.start		= REALVIEW_PBA8_CF_BASE,
-		.end		= REALVIEW_PBA8_CF_BASE + SZ_4K - 1,
-		.flags		= IORESOURCE_MEM,
-	},
-	[1] = {
-		.start		= REALVIEW_PBA8_CF_MEM_BASE,
-		.end		= REALVIEW_PBA8_CF_MEM_BASE + SZ_4K - 1,
-		.flags		= IORESOURCE_MEM,
-	},
-	[2] = {
-		.start		= -1,		/* FIXME: Find correct irq */
-		.end		= -1,
-		.flags		= IORESOURCE_IRQ,
-	},
-};
-
-struct platform_device realview_pba8_cf_device = {
-	.name		= "compactflash",
-	.id		= 0,
-	.num_resources	= ARRAY_SIZE(realview_pba8_cf_resources),
-	.resource	= realview_pba8_cf_resources,
-};
-
 static void __init gic_init_irq(void)
 {
 	/* ARM PB-A8 on-board GIC */
@@ -276,7 +251,7 @@ static void __init realview_pba8_init(void)
 				ARRAY_SIZE(realview_pba8_flash_resource));
 	realview_eth_register(NULL, realview_pba8_smsc911x_resources);
 	platform_device_register(&realview_i2c_device);
-	platform_device_register(&realview_pba8_cf_device);
+	platform_device_register(&realview_cf_device);
 
 	for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
 		struct amba_device *d = amba_devs[i];