linux-stable-rt/arch/arm/mach-tcc8k/devices.c

/*
 * linux/arch/arm/mach-tcc8k/devices.c
 *
 * Copyright (C) Telechips, Inc.
 * Copyright (C) 2009 Hans J. Koch <hjk@linutronix.de>
 *
 * Licensed under the terms of GPL v2.
 *
 */

#include <linux/dma-mapping.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>

#include <asm/mach/map.h>

#include <mach/tcc8k-regs.h>
#include <mach/irqs.h>

#include "common.h"

static u64 tcc8k_dmamask = DMA_BIT_MASK(32);

#ifdef CONFIG_MTD_NAND_TCC
/* NAND controller */
static struct resource tcc_nand_resources[] = {
	{
		.start	= (resource_size_t)NFC_BASE,
		.end	= (resource_size_t)NFC_BASE + 0x7f,
		.flags	= IORESOURCE_MEM,
	}, {
		.start	= INT_NFC,
		.end	= INT_NFC,
		.flags	= IORESOURCE_IRQ,
	},
};

struct platform_device tcc_nand_device = {
	.name = "tcc_nand",
	.id = 0,
	.num_resources = ARRAY_SIZE(tcc_nand_resources),
	.resource = tcc_nand_resources,
};
#endif

#ifdef CONFIG_MMC_TCC8K
/* MMC controller */
static struct resource tcc8k_mmc0_resource[] = {
	{
		.start = INT_SD0,
		.end   = INT_SD0,
		.flags = IORESOURCE_IRQ,
	},
};

static struct resource tcc8k_mmc1_resource[] = {
	{
		.start = INT_SD1,
		.end   = INT_SD1,
		.flags = IORESOURCE_IRQ,
	},
};

struct platform_device tcc8k_mmc0_device = {
	.name		= "tcc-mmc",
	.id		= 0,
	.num_resources	= ARRAY_SIZE(tcc8k_mmc0_resource),
	.resource	= tcc8k_mmc0_resource,
	.dev		= {
		.dma_mask		= &tcc8k_dmamask,
		.coherent_dma_mask	= DMA_BIT_MASK(32),
	}
};

struct platform_device tcc8k_mmc1_device = {
	.name		= "tcc-mmc",
	.id		= 1,
	.num_resources	= ARRAY_SIZE(tcc8k_mmc1_resource),
	.resource	= tcc8k_mmc1_resource,
	.dev		= {
		.dma_mask		= &tcc8k_dmamask,
		.coherent_dma_mask	= DMA_BIT_MASK(32),
	}
};

static inline void tcc8k_init_mmc(void)
{
	u32 reg = __raw_readl(GPIOPS_BASE + GPIOPS_FS1_OFFS);

	reg |= GPIOPS_FS1_SDH0_BITS | GPIOPS_FS1_SDH1_BITS;
	__raw_writel(reg, GPIOPS_BASE + GPIOPS_FS1_OFFS);

	platform_device_register(&tcc8k_mmc0_device);
	platform_device_register(&tcc8k_mmc1_device);
}
#else
static inline void tcc8k_init_mmc(void) { }
#endif

#ifdef CONFIG_USB_OHCI_HCD
static int tcc8k_ohci_init(struct device *dev)
{
	u32 reg;

	/* Use GPIO PK19 as VBUS control output */
	reg = __raw_readl(GPIOPK_BASE + GPIOPK_FS0_OFFS);
	reg &= ~(1 << 19);
	__raw_writel(reg, GPIOPK_BASE + GPIOPK_FS0_OFFS);
	reg = __raw_readl(GPIOPK_BASE + GPIOPK_FS1_OFFS);
	reg &= ~(1 << 19);
	__raw_writel(reg, GPIOPK_BASE + GPIOPK_FS1_OFFS);

	reg = __raw_readl(GPIOPK_BASE + GPIOPK_DOE_OFFS);
	reg |= (1 << 19);
	__raw_writel(reg, GPIOPK_BASE + GPIOPK_DOE_OFFS);
	/* Turn on VBUS */
	reg = __raw_readl(GPIOPK_BASE + GPIOPK_DAT_OFFS);
	reg |= (1 << 19);
	__raw_writel(reg, GPIOPK_BASE + GPIOPK_DAT_OFFS);

	return 0;
}

static struct resource tcc8k_ohci0_resources[] = {
	[0] = {
		.start = (resource_size_t)USBH0_BASE,
		.end   = (resource_size_t)USBH0_BASE + 0x5c,
		.flags = IORESOURCE_MEM,
	},
	[1] = {
		.start = INT_USBH0,
		.end   = INT_USBH0,
		.flags = IORESOURCE_IRQ,
	}
};

static struct resource tcc8k_ohci1_resources[] = {
	[0] = {
		.start = (resource_size_t)USBH1_BASE,
		.end   = (resource_size_t)USBH1_BASE + 0x5c,
		.flags = IORESOURCE_MEM,
	},
	[1] = {
		.start = INT_USBH1,
		.end   = INT_USBH1,
		.flags = IORESOURCE_IRQ,
	}
};

static struct tccohci_platform_data tcc8k_ohci0_platform_data = {
	.controller	= 0,
	.port_mode	= PMM_PERPORT_MODE,
	.init		= tcc8k_ohci_init,
};

static struct tccohci_platform_data tcc8k_ohci1_platform_data = {
	.controller	= 1,
	.port_mode	= PMM_PERPORT_MODE,
	.init		= tcc8k_ohci_init,
};

static struct platform_device ohci0_device = {
	.name = "tcc-ohci",
	.id = 0,
	.dev = {
		.dma_mask = &tcc8k_dmamask,
		.coherent_dma_mask = DMA_BIT_MASK(32),
		.platform_data = &tcc8k_ohci0_platform_data,
	},
	.num_resources  = ARRAY_SIZE(tcc8k_ohci0_resources),
	.resource       = tcc8k_ohci0_resources,
};

static struct platform_device ohci1_device = {
	.name = "tcc-ohci",
	.id = 1,
	.dev = {
		.dma_mask = &tcc8k_dmamask,
		.coherent_dma_mask = DMA_BIT_MASK(32),
		.platform_data = &tcc8k_ohci1_platform_data,
	},
	.num_resources  = ARRAY_SIZE(tcc8k_ohci1_resources),
	.resource       = tcc8k_ohci1_resources,
};

static void __init tcc8k_init_usbhost(void)
{
	platform_device_register(&ohci0_device);
	platform_device_register(&ohci1_device);
}
#else
static void __init tcc8k_init_usbhost(void) { }
#endif

/* USB device controller*/
#ifdef CONFIG_USB_GADGET_TCC8K
static struct resource udc_resources[] = {
	[0] = {
		.start = INT_USBD,
		.end   = INT_USBD,
		.flags = IORESOURCE_IRQ,
	},
	[1] = {
		.start = INT_UDMA,
		.end   = INT_UDMA,
		.flags = IORESOURCE_IRQ,
	},
};

static struct platform_device tcc8k_udc_device = {
	.name = "tcc-udc",
	.id = 0,
	.resource = udc_resources,
	.num_resources = ARRAY_SIZE(udc_resources),
	.dev = {
		 .dma_mask = &tcc8k_dmamask,
		 .coherent_dma_mask = DMA_BIT_MASK(32),
	},
};

static void __init tcc8k_init_usb_gadget(void)
{
	platform_device_register(&tcc8k_udc_device);
}
#else
static void __init tcc8k_init_usb_gadget(void) { }
#endif	/* CONFIG_USB_GADGET_TCC83X */

static int __init tcc8k_init_devices(void)
{
	tcc8k_init_mmc();
	tcc8k_init_usbhost();
	tcc8k_init_usb_gadget();
	return 0;
}

arch_initcall(tcc8k_init_devices);