ARM: S3C24XX: Add plaform device definition for USB High-Speed gadget controller.

S3C2416, S3C2443 and S3C2450 includes a USB High-Speed Gadget controller module.
This patch adds the following for supporting this controller.

1. Definition for USB High-Speed controller base address.
2. Platform device instantiation.
3. Declaration for platform data structure.
4. Functionality to setup platform data for the controller.

Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Sangbeom Kim <sbkim73@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

4 files changed, 63 insertions, 0 deletions

diff --git a/arch/arm/mach-s3c2410/include/mach/map.h b/arch/arm/mach-s3c2410/include/mach/map.h
index 25bbf5a942dd..425552d84b60 100644
--- a/arch/arm/mach-s3c2410/include/mach/map.h
+++ b/arch/arm/mach-s3c2410/include/mach/map.h
@@ -21,6 +21,10 @@
 /* USB host controller */
 #define S3C2410_PA_USBHOST (0x49000000)
 
+/* S3C2416/S3C2443/S3C2450 High-Speed USB Gadget */
+#define S3C2416_PA_HSUDC        (0x49800000)
+#define S3C2416_SZ_HSUDC        (SZ_4K)
+
 /* DMA controller */
 #define S3C2410_PA_DMA     (0x4B000000)
 #define S3C24XX_SZ_DMA     SZ_1M
diff --git a/arch/arm/plat-s3c24xx/devs.c b/arch/arm/plat-s3c24xx/devs.c
index 268f3ed0a105..73667994518a 100644
--- a/arch/arm/plat-s3c24xx/devs.c
+++ b/arch/arm/plat-s3c24xx/devs.c
@@ -22,6 +22,7 @@
 #include <linux/io.h>
 #include <linux/slab.h>
 #include <linux/string.h>
+#include <linux/dma-mapping.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -233,6 +234,46 @@ void __init s3c24xx_udc_set_platdata(struct s3c2410_udc_mach_info *pd)
         }
 }
 
+/* USB High Speed 2.0 Device (Gadget) */
+static struct resource s3c_hsudc_resource[] = {
+        [0] = {
+                .start  = S3C2416_PA_HSUDC,
+                .end    = S3C2416_PA_HSUDC + S3C2416_SZ_HSUDC - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = IRQ_USBD,
+                .end    = IRQ_USBD,
+                .flags  = IORESOURCE_IRQ,
+        }
+};
+
+static u64 s3c_hsudc_dmamask = DMA_BIT_MASK(32);
+
+struct platform_device s3c_device_usb_hsudc = {
+        .name           = "s3c-hsudc",
+        .id             = -1,
+        .num_resources  = ARRAY_SIZE(s3c_hsudc_resource),
+        .resource       = s3c_hsudc_resource,
+        .dev            = {
+                .dma_mask               = &s3c_hsudc_dmamask,
+                .coherent_dma_mask      = DMA_BIT_MASK(32),
+        },
+};
+
+void __init s3c24xx_hsudc_set_platdata(struct s3c24xx_hsudc_platdata *pd)
+{
+        struct s3c24xx_hsudc_platdata *npd;
+
+        npd = kmalloc(sizeof(*npd), GFP_KERNEL);
+        if (npd) {
+                memcpy(npd, pd, sizeof(*npd));
+                s3c_device_usb_hsudc.dev.platform_data = npd;
+        } else {
+                printk(KERN_ERR "no memory for udc platform data\n");
+        }
+}
+
 /* IIS */
 
 static struct resource s3c_iis_resource[] = {
diff --git a/arch/arm/plat-s3c24xx/include/plat/udc.h b/arch/arm/plat-s3c24xx/include/plat/udc.h
index 80457c6414aa..f63884242506 100644
--- a/arch/arm/plat-s3c24xx/include/plat/udc.h
+++ b/arch/arm/plat-s3c24xx/include/plat/udc.h
@@ -37,4 +37,21 @@ struct s3c2410_udc_mach_info {
 
 extern void __init s3c24xx_udc_set_platdata(struct s3c2410_udc_mach_info *);
 
+/**
+ * s3c24xx_hsudc_platdata - Platform data for USB High-Speed gadget controller.
+ * @epnum: Number of endpoints to be instantiated by the controller driver.
+ * @gpio_init: Platform specific USB related GPIO initialization.
+ * @gpio_uninit: Platform specific USB releted GPIO uninitialzation.
+ *
+ * Representation of platform data for the S3C24XX USB 2.0 High Speed gadget
+ * controllers.
+ */
+struct s3c24xx_hsudc_platdata {
+        unsigned int    epnum;
+        void            (*gpio_init)(void);
+        void            (*gpio_uninit)(void);
+};
+
+extern void __init s3c24xx_hsudc_set_platdata(struct s3c24xx_hsudc_platdata *pd);
+
 #endif /* __ASM_ARM_ARCH_UDC_H */
diff --git a/arch/arm/plat-samsung/include/plat/devs.h b/arch/arm/plat-samsung/include/plat/devs.h
index 3f38debbb108..39818d8da420 100644
--- a/arch/arm/plat-samsung/include/plat/devs.h
+++ b/arch/arm/plat-samsung/include/plat/devs.h
@@ -88,6 +88,7 @@ extern struct platform_device s3c64xx_device_onenand1;
 extern struct platform_device s5p_device_onenand;
 
 extern struct platform_device s3c_device_usbgadget;
+extern struct platform_device s3c_device_usb_hsudc;
 extern struct platform_device s3c_device_usb_hsotg;
 
 extern struct platform_device s5pv210_device_ac97;