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

A patch from »USB: gadget: Add Samsung S3C24xx USB HS controller driver« in state Mainline for linux-kernel

From: Thomas Abraham <thomas.ab@...> Date: Wed, 13 Oct 2010 09:10:25 +0900

Commit-Message

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@...> Signed-off-by: Sangbeom Kim <sbkim73@...>

Patch-Comment

arch/arm/mach-s3c2410/include/mach/map.h | 4 +++ arch/arm/plat-s3c24xx/devs.c | 41 +++++++++++++++++++++++++++++ arch/arm/plat-s3c24xx/include/plat/udc.h | 17 ++++++++++++ arch/arm/plat-samsung/include/plat/devs.h | 1 + 4 files changed, 63 insertions(+), 0 deletions(-)

Statistics

  • 63 lines added
  • 0 lines removed

Changes

------------------- arch/arm/mach-s3c2410/include/mach/map.h -------------------
index 25bbf5a..425552d 100644
@@ -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
------------------------- arch/arm/plat-s3c24xx/devs.c -------------------------
index 268f3ed..7366799 100644
@@ -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[] = {
------------------- arch/arm/plat-s3c24xx/include/plat/udc.h -------------------
index 546bb40..a3fc1be 100644
@@ -33,4 +33,21 @@ 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 */
------------------ arch/arm/plat-samsung/include/plat/devs.h -------------------
index b4d208b..fcb6e30 100644
@@ -85,6 +85,7 @@ 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;
 
 

Recent Patches

About Us

Sed lacus. Donec lectus. Nullam pretium nibh ut turpis. Nam bibendum. In nulla tortor, elementum vel, tempor at, varius non, purus. Mauris vitae nisl nec metus placerat consectetuer.

Read More...