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| author | Thomas Abraham <thomas.ab@samsung.com> | 2011-05-08 00:26:53 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-05-11 01:16:54 +0400 |
| commit | 4a98f590659113f72c021201781d5b83bc743a7c (patch) | |
| tree | 791dfc7cbb9d8b10d52745e0c4c8566d6d7bc7aa /arch/arm/plat-s3c24xx | |
| parent | 0a94c6b121c58692a9b6cbe2cd9a26ffdc2c4a82 (diff) | |
| download | linux-4a98f590659113f72c021201781d5b83bc743a7c.tar.xz | |
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.c | 41 | ||||
| -rw-r--r-- | arch/arm/plat-s3c24xx/include/plat/udc.h | 17 |
2 files changed, 58 insertions, 0 deletions
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 */ |