[ARM] pxa: mmc: add 3rd host controller support for pxa310

This patch is to add the third mmc controller support _only_
for pxa310.

On zylonite, the third controller support one slot.

Signed-off-by: Bridge Wu <bridge.wu@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

5 files changed, 56 insertions, 1 deletions

diff --git a/arch/arm/mach-pxa/devices.c b/arch/arm/mach-pxa/devices.c
index bc04e87ed3b4..061ec92eb1e2 100644
--- a/arch/arm/mach-pxa/devices.c
+++ b/arch/arm/mach-pxa/devices.c
@@ -589,4 +589,43 @@ void __init pxa3xx_set_mci2_info(struct pxamci_platform_data *info)
         pxa_register_device(&pxa3xx_device_mci2, info);
 }
 
+static struct resource pxa3xx_resources_mci3[] = {
+        [0] = {
+                .start  = 0x42500000,
+                .end    = 0x42500fff,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = IRQ_MMC3,
+                .end    = IRQ_MMC3,
+                .flags  = IORESOURCE_IRQ,
+        },
+        [2] = {
+                .start  = 100,
+                .end    = 100,
+                .flags  = IORESOURCE_DMA,
+        },
+        [3] = {
+                .start  = 101,
+                .end    = 101,
+                .flags  = IORESOURCE_DMA,
+        },
+};
+
+struct platform_device pxa3xx_device_mci3 = {
+        .name           = "pxa2xx-mci",
+        .id             = 2,
+        .dev            = {
+                .dma_mask = &pxamci_dmamask,
+                .coherent_dma_mask = 0xffffffff,
+        },
+        .num_resources  = ARRAY_SIZE(pxa3xx_resources_mci3),
+        .resource       = pxa3xx_resources_mci3,
+};
+
+void __init pxa3xx_set_mci3_info(struct pxamci_platform_data *info)
+{
+        pxa_register_device(&pxa3xx_device_mci3, info);
+}
+
 #endif /* CONFIG_PXA3xx */
diff --git a/arch/arm/mach-pxa/devices.h b/arch/arm/mach-pxa/devices.h
index d78068cc8015..96c7c8909068 100644
--- a/arch/arm/mach-pxa/devices.h
+++ b/arch/arm/mach-pxa/devices.h
@@ -1,5 +1,6 @@
 extern struct platform_device pxa_device_mci;
 extern struct platform_device pxa3xx_device_mci2;
+extern struct platform_device pxa3xx_device_mci3;
 extern struct platform_device pxa_device_udc;
 extern struct platform_device pxa_device_fb;
 extern struct platform_device pxa_device_ffuart;
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index 124ad5eb7ab0..843ba9bf3df7 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -197,6 +197,7 @@ static struct clk pxa3xx_clks[] = {
 
         PXA3xx_CKEN("MMCCLK", MMC1, 19500000, 0, &pxa_device_mci.dev),
         PXA3xx_CKEN("MMCCLK", MMC2, 19500000, 0, &pxa3xx_device_mci2.dev),
+        PXA3xx_CKEN("MMCCLK", MMC3, 19500000, 0, &pxa3xx_device_mci3.dev),
 };
 
 void __init pxa3xx_init_irq(void)
diff --git a/arch/arm/mach-pxa/zylonite.c b/arch/arm/mach-pxa/zylonite.c
index 33986036f146..b49c69d024c7 100644
--- a/arch/arm/mach-pxa/zylonite.c
+++ b/arch/arm/mach-pxa/zylonite.c
@@ -29,7 +29,7 @@
 
 #include "generic.h"
 
-#define MAX_SLOTS       2
+#define MAX_SLOTS       3
 struct platform_mmc_slot zylonite_mmc_slot[MAX_SLOTS];
 
 int gpio_backlight;
@@ -242,6 +242,8 @@ static void __init zylonite_init_mmc(void)
 {
         pxa_set_mci_info(&zylonite_mci_platform_data);
         pxa3xx_set_mci2_info(&zylonite_mci2_platform_data);
+        if (cpu_is_pxa310())
+                pxa3xx_set_mci3_info(&zylonite_mci_platform_data);
 }
 #else
 static inline void zylonite_init_mmc(void) {}
diff --git a/arch/arm/mach-pxa/zylonite_pxa300.c b/arch/arm/mach-pxa/zylonite_pxa300.c
index 38c1ddc6cb1d..0e159a3024c0 100644
--- a/arch/arm/mach-pxa/zylonite_pxa300.c
+++ b/arch/arm/mach-pxa/zylonite_pxa300.c
@@ -133,6 +133,14 @@ static mfp_cfg_t pxa310_mfp_cfg[] __initdata = {
         /* Ethernet */
         GPIO2_nCS3,
         GPIO102_GPIO,
+
+        /* MMC3 */
+        GPIO7_2_MMC3_DAT0,
+        GPIO8_2_MMC3_DAT1,
+        GPIO9_2_MMC3_DAT2,
+        GPIO10_2_MMC3_DAT3,
+        GPIO103_MMC3_CLK,
+        GPIO105_MMC3_CMD,
 };
 
 #define NUM_LCD_DETECT_PINS     7
@@ -205,5 +213,9 @@ void __init zylonite_pxa300_init(void)
         if (cpu_is_pxa310()) {
                 pxa3xx_mfp_config(ARRAY_AND_SIZE(pxa310_mfp_cfg));
                 gpio_eth_irq = mfp_to_gpio(MFP_PIN_GPIO102);
+
+                /* MMC card detect & write protect for controller 2 */
+                zylonite_mmc_slot[2].gpio_cd = EXT_GPIO(30);
+                zylonite_mmc_slot[2].gpio_wp = EXT_GPIO(31);
         }
 }