[ARM] pxa/vpac270: add ide support

This patch adds support for the on-board IDE channel. I tested this with a CDROM
connected over 2.5-3.5 IDE reduction with external power supplied to the CDROM.
This was not tested with the Voipac 270-HDD-000 (official Voipac HDD module),
but I expect no problems.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

3 files changed, 53 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index e4a0452e0e2d..3b51741a4810 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -252,6 +252,7 @@ config MACH_COLIBRI320
 config MACH_VPAC270
         bool "Voipac PXA270"
         select PXA27x
+        select HAVE_PATA_PLATFORM
         help
           PXA270 based Single Board Computer.
 
diff --git a/arch/arm/mach-pxa/include/mach/vpac270.h b/arch/arm/mach-pxa/include/mach/vpac270.h
index b90b380ddab9..0d82c47056ef 100644
--- a/arch/arm/mach-pxa/include/mach/vpac270.h
+++ b/arch/arm/mach-pxa/include/mach/vpac270.h
@@ -35,4 +35,6 @@
 
 #define GPIO114_VPAC270_ETH_IRQ         114
 
+#define GPIO36_VPAC270_IDE_IRQ          36
+
 #endif
diff --git a/arch/arm/mach-pxa/vpac270.c b/arch/arm/mach-pxa/vpac270.c
index 0a9647b1916d..6575b8f352c9 100644
--- a/arch/arm/mach-pxa/vpac270.c
+++ b/arch/arm/mach-pxa/vpac270.c
@@ -23,6 +23,7 @@
 #include <linux/mtd/physmap.h>
 #include <linux/dm9000.h>
 #include <linux/ucb1400.h>
+#include <linux/ata_platform.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -138,6 +139,10 @@ static unsigned long vpac270_pin_config[] __initdata = {
         /* I2C */
         GPIO117_I2C_SCL,
         GPIO118_I2C_SDA,
+
+        /* IDE */
+        GPIO36_GPIO,    /* IDE IRQ */
+        GPIO80_DREQ_1,
 };
 
 /******************************************************************************
@@ -487,6 +492,50 @@ static inline void vpac270_lcd_init(void) {}
 #endif
 
 /******************************************************************************
+ * PATA IDE
+ ******************************************************************************/
+#if defined(CONFIG_PATA_PLATFORM) || defined(CONFIG_PATA_PLATFORM_MODULE)
+static struct pata_platform_info vpac270_pata_pdata = {
+        .ioport_shift   = 1,
+        .irq_flags      = IRQF_TRIGGER_RISING,
+};
+
+static struct resource vpac270_ide_resources[] = {
+        [0] = { /* I/O Base address */
+               .start   = PXA_CS3_PHYS + 0x120,
+               .end     = PXA_CS3_PHYS + 0x13f,
+               .flags   = IORESOURCE_MEM
+        },
+        [1] = { /* CTL Base address */
+               .start   = PXA_CS3_PHYS + 0x15c,
+               .end     = PXA_CS3_PHYS + 0x15f,
+               .flags   = IORESOURCE_MEM
+        },
+        [2] = { /* IDE IRQ pin */
+               .start   = gpio_to_irq(GPIO36_VPAC270_IDE_IRQ),
+               .end     = gpio_to_irq(GPIO36_VPAC270_IDE_IRQ),
+               .flags   = IORESOURCE_IRQ
+        }
+};
+
+static struct platform_device vpac270_ide_device = {
+        .name           = "pata_platform",
+        .num_resources  = ARRAY_SIZE(vpac270_ide_resources),
+        .resource       = vpac270_ide_resources,
+        .dev            = {
+                .platform_data  = &vpac270_pata_pdata,
+        }
+};
+
+static void __init vpac270_ide_init(void)
+{
+        platform_device_register(&vpac270_ide_device);
+}
+#else
+static inline void vpac270_ide_init(void) {}
+#endif
+
+/******************************************************************************
  * Machine init
  ******************************************************************************/
 static void __init vpac270_init(void)
@@ -507,6 +556,7 @@ static void __init vpac270_init(void)
         vpac270_eth_init();
         vpac270_ts_init();
         vpac270_rtc_init();
+        vpac270_ide_init();
 }
 
 MACHINE_START(VPAC270, "Voipac PXA270")