[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>

7 files changed, 39 insertions, 54 deletions

diff --git a/arch/arm/mach-realview/Kconfig b/arch/arm/mach-realview/Kconfig
index ad911854eb4c..b6ec10627776 100644
--- a/arch/arm/mach-realview/Kconfig
+++ b/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
diff --git a/arch/arm/mach-realview/core.c b/arch/arm/mach-realview/core.c
index 27b48be73676..51972ecfc506 100644
--- a/arch/arm/mach-realview/core.c
+++ b/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,
diff --git a/arch/arm/mach-realview/core.h b/arch/arm/mach-realview/core.h
index 44269b162d49..0ba1bfb1fe6b 100644
--- a/arch/arm/mach-realview/core.h
+++ b/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;
diff --git a/arch/arm/mach-realview/include/mach/board-pba8.h b/arch/arm/mach-realview/include/mach/board-pba8.h
index c8bed8f58bab..307f97b16e5b 100644
--- a/arch/arm/mach-realview/include/mach/board-pba8.h
+++ b/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
diff --git a/arch/arm/mach-realview/include/mach/platform.h b/arch/arm/mach-realview/include/mach/platform.h
index 793a3a332712..c8f50835fed2 100644
--- a/arch/arm/mach-realview/include/mach/platform.h
+++ b/arch/arm/mach-realview/include/mach/platform.h
@@ -204,6 +204,12 @@
 #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
  */
 #define REALVIEW_DOC_BASE             0x2C000000
diff --git a/arch/arm/mach-realview/realview_pb11mp.c b/arch/arm/mach-realview/realview_pb11mp.c
index 3ebdb2dadd6f..ff50ec2e4320 100644
--- a/arch/arm/mach-realview/realview_pb11mp.c
+++ b/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];
diff --git a/arch/arm/mach-realview/realview_pba8.c b/arch/arm/mach-realview/realview_pba8.c
index 34c94435d2d8..c6147cba2578 100644
--- a/arch/arm/mach-realview/realview_pba8.c
+++ b/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];