platform.c

linux 内核源代码

/*
 * Platform device support for Au1x00 SoCs.
 *
 * Copyright 2004, Matt Porter <[e-mail]>
 *
 * This file is licensed under the terms of the GNU General Public
 * License version 2.  This program is licensed "as is" without any
 * warranty of any kind, whether express or implied.
 */
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/resource.h>

#include <asm/mach-au1x00/au1xxx.h>

/* OHCI (USB full speed host controller) */
static struct resource au1xxx_usb_ohci_resources[] = {
	[0] = {
		.start		= USB_OHCI_BASE,
		.end		= USB_OHCI_BASE + USB_OHCI_LEN - 1,
		.flags		= IORESOURCE_MEM,
	},
	[1] = {
		.start		= AU1000_USB_HOST_INT,
		.end		= AU1000_USB_HOST_INT,
		.flags		= IORESOURCE_IRQ,
	},
};

/* The dmamask must be set for OHCI to work */
static u64 ohci_dmamask = ~(u32)0;

static struct platform_device au1xxx_usb_ohci_device = {
	.name		= "au1xxx-ohci",
	.id		= 0,
	.dev = {
		.dma_mask		= &ohci_dmamask,
		.coherent_dma_mask	= 0xffffffff,
	},
	.num_resources	= ARRAY_SIZE(au1xxx_usb_ohci_resources),
	.resource	= au1xxx_usb_ohci_resources,
};

/*** AU1100 LCD controller ***/

#ifdef CONFIG_FB_AU1100
static struct resource au1100_lcd_resources[] = {
	[0] = {
		.start          = LCD_PHYS_ADDR,
		.end            = LCD_PHYS_ADDR + 0x800 - 1,
		.flags          = IORESOURCE_MEM,
	},
	[1] = {
		.start          = AU1100_LCD_INT,
		.end            = AU1100_LCD_INT,
		.flags          = IORESOURCE_IRQ,
	}
};

static u64 au1100_lcd_dmamask = ~(u32)0;

static struct platform_device au1100_lcd_device = {
	.name           = "au1100-lcd",
	.id             = 0,
	.dev = {
		.dma_mask               = &au1100_lcd_dmamask,
		.coherent_dma_mask      = 0xffffffff,
	},
	.num_resources  = ARRAY_SIZE(au1100_lcd_resources),
	.resource       = au1100_lcd_resources,
};
#endif

#ifdef CONFIG_SOC_AU1200
/* EHCI (USB high speed host controller) */
static struct resource au1xxx_usb_ehci_resources[] = {
	[0] = {
		.start		= USB_EHCI_BASE,
		.end		= USB_EHCI_BASE + USB_EHCI_LEN - 1,
		.flags		= IORESOURCE_MEM,
	},
	[1] = {
		.start		= AU1000_USB_HOST_INT,
		.end		= AU1000_USB_HOST_INT,
		.flags		= IORESOURCE_IRQ,
	},
};

static u64 ehci_dmamask = ~(u32)0;

static struct platform_device au1xxx_usb_ehci_device = {
	.name		= "au1xxx-ehci",
	.id		= 0,
	.dev = {
		.dma_mask		= &ehci_dmamask,
		.coherent_dma_mask	= 0xffffffff,
	},
	.num_resources	= ARRAY_SIZE(au1xxx_usb_ehci_resources),
	.resource	= au1xxx_usb_ehci_resources,
};

/* Au1200 UDC (USB gadget controller) */
static struct resource au1xxx_usb_gdt_resources[] = {
	[0] = {
		.start		= USB_UDC_BASE,
		.end		= USB_UDC_BASE + USB_UDC_LEN - 1,
		.flags		= IORESOURCE_MEM,
	},
	[1] = {
		.start		= AU1200_USB_INT,
		.end		= AU1200_USB_INT,
		.flags		= IORESOURCE_IRQ,
	},
};

static struct resource au1xxx_mmc_resources[] = {
	[0] = {
		.start          = SD0_PHYS_ADDR,
		.end            = SD0_PHYS_ADDR + 0x40,
		.flags          = IORESOURCE_MEM,
	},
	[1] = {
		.start		= SD1_PHYS_ADDR,
		.end 		= SD1_PHYS_ADDR + 0x40,
		.flags		= IORESOURCE_MEM,
	},
	[2] = {
		.start          = AU1200_SD_INT,
		.end            = AU1200_SD_INT,
		.flags          = IORESOURCE_IRQ,
	}
};

static u64 udc_dmamask = ~(u32)0;

static struct platform_device au1xxx_usb_gdt_device = {
	.name		= "au1xxx-udc",
	.id		= 0,
	.dev = {
		.dma_mask		= &udc_dmamask,
		.coherent_dma_mask	= 0xffffffff,
	},
	.num_resources	= ARRAY_SIZE(au1xxx_usb_gdt_resources),
	.resource	= au1xxx_usb_gdt_resources,
};

/* Au1200 UOC (USB OTG controller) */
static struct resource au1xxx_usb_otg_resources[] = {
	[0] = {
		.start		= USB_UOC_BASE,
		.end		= USB_UOC_BASE + USB_UOC_LEN - 1,
		.flags		= IORESOURCE_MEM,
	},
	[1] = {
		.start		= AU1200_USB_INT,
		.end		= AU1200_USB_INT,
		.flags		= IORESOURCE_IRQ,
	},
};

static u64 uoc_dmamask = ~(u32)0;

static struct platform_device au1xxx_usb_otg_device = {
	.name		= "au1xxx-uoc",
	.id		= 0,
	.dev = {
		.dma_mask		= &uoc_dmamask,
		.coherent_dma_mask	= 0xffffffff,
	},
	.num_resources	= ARRAY_SIZE(au1xxx_usb_otg_resources),
	.resource	= au1xxx_usb_otg_resources,
};

static struct resource au1200_lcd_resources[] = {
	[0] = {
		.start          = LCD_PHYS_ADDR,
		.end            = LCD_PHYS_ADDR + 0x800 - 1,
		.flags          = IORESOURCE_MEM,
	},
	[1] = {
		.start          = AU1200_LCD_INT,
		.end            = AU1200_LCD_INT,
		.flags          = IORESOURCE_IRQ,
	}
};

static struct resource au1200_ide0_resources[] = {
	[0] = {
		.start		= AU1XXX_ATA_PHYS_ADDR,
		.end 		= AU1XXX_ATA_PHYS_ADDR + AU1XXX_ATA_PHYS_LEN,
		.flags		= IORESOURCE_MEM,
	},
	[1] = {
		.start		= AU1XXX_ATA_INT,
		.end		= AU1XXX_ATA_INT,
		.flags		= IORESOURCE_IRQ,
	}
};

static u64 au1200_lcd_dmamask = ~(u32)0;

static struct platform_device au1200_lcd_device = {
	.name           = "au1200-lcd",
	.id             = 0,
	.dev = {
		.dma_mask               = &au1200_lcd_dmamask,
		.coherent_dma_mask      = 0xffffffff,
	},
	.num_resources  = ARRAY_SIZE(au1200_lcd_resources),
	.resource       = au1200_lcd_resources,
};


static u64 ide0_dmamask = ~(u32)0;

static struct platform_device au1200_ide0_device = {
	.name		= "au1200-ide",
	.id		= 0,
	.dev = {
		.dma_mask 		= &ide0_dmamask,
		.coherent_dma_mask	= 0xffffffff,
	},
	.num_resources = ARRAY_SIZE(au1200_ide0_resources),
	.resource	= au1200_ide0_resources,
};

static u64 au1xxx_mmc_dmamask =  ~(u32)0;

static struct platform_device au1xxx_mmc_device = {
	.name = "au1xxx-mmc",
	.id = 0,
	.dev = {
		.dma_mask               = &au1xxx_mmc_dmamask,
		.coherent_dma_mask      = 0xffffffff,
	},
	.num_resources  = ARRAY_SIZE(au1xxx_mmc_resources),
	.resource       = au1xxx_mmc_resources,
};
#endif /* #ifdef CONFIG_SOC_AU1200 */

static struct platform_device au1x00_pcmcia_device = {
	.name 		= "au1x00-pcmcia",
	.id 		= 0,
};

#ifdef CONFIG_MIPS_DB1200

static struct resource smc91x_resources[] = {
	[0] = {
		.name	= "smc91x-regs",
		.start	= AU1XXX_SMC91111_PHYS_ADDR,
		.end	= AU1XXX_SMC91111_PHYS_ADDR + 0xfffff,
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.start	= AU1XXX_SMC91111_IRQ,
		.end	= AU1XXX_SMC91111_IRQ,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct platform_device smc91x_device = {
	.name		= "smc91x",
	.id		= -1,
	.num_resources	= ARRAY_SIZE(smc91x_resources),
	.resource	= smc91x_resources,
};

#endif

static struct platform_device *au1xxx_platform_devices[] __initdata = {
	&au1xxx_usb_ohci_device,
	&au1x00_pcmcia_device,
#ifdef CONFIG_FB_AU1100
	&au1100_lcd_device,
#endif
#ifdef CONFIG_SOC_AU1200
	&au1xxx_usb_ehci_device,
	&au1xxx_usb_gdt_device,
	&au1xxx_usb_otg_device,
	&au1200_lcd_device,
	&au1200_ide0_device,
	&au1xxx_mmc_device,
#endif
#ifdef CONFIG_MIPS_DB1200
	&smc91x_device,
#endif
};

int __init au1xxx_platform_init(void)
{
	return platform_add_devices(au1xxx_platform_devices, ARRAY_SIZE(au1xxx_platform_devices));
}

arch_initcall(au1xxx_platform_init);