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authorThomas Abraham <thomas.ab@samsung.com>2011-05-07 22:26:53 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2011-05-10 14:16:54 -0700
commit4a98f590659113f72c021201781d5b83bc743a7c (patch)
tree791dfc7cbb9d8b10d52745e0c4c8566d6d7bc7aa /arch/arm/plat-s3c24xx
parent0a94c6b121c58692a9b6cbe2cd9a26ffdc2c4a82 (diff)
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>
Diffstat (limited to 'arch/arm/plat-s3c24xx')
-rw-r--r--arch/arm/plat-s3c24xx/devs.c41
-rw-r--r--arch/arm/plat-s3c24xx/include/plat/udc.h17
2 files changed, 58 insertions, 0 deletions
diff --git a/arch/arm/plat-s3c24xx/devs.c b/arch/arm/plat-s3c24xx/devs.c
index 268f3ed0a10..73667994518 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 80457c6414a..f6388424250 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 */