arch/mips/alchemy/devboards/db1000.c

Source file repositories/reference/linux-study-clean/arch/mips/alchemy/devboards/db1000.c

File Facts

System
Linux kernel
Corpus path
arch/mips/alchemy/devboards/db1000.c
Extension
.c
Size
14154 bytes
Lines
565
Domain
Architecture Layer
Bucket
arch/mips
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

switch (pin) {
		case 1: return AU1500_PCI_INTA;
		case 2: return AU1500_PCI_INTB;
		case 3: return AU1500_PCI_INTC;
		case 4: return AU1500_PCI_INTD;
		}
	}
	return -1;
}

static u64 au1xxx_all_dmamask = DMA_BIT_MASK(32);

static struct resource alchemy_pci_host_res[] = {
	[0] = {
		.start	= AU1500_PCI_PHYS_ADDR,
		.end	= AU1500_PCI_PHYS_ADDR + 0xfff,
		.flags	= IORESOURCE_MEM,
	},
};

static struct alchemy_pci_platdata db1500_pci_pd = {
	.board_map_irq	= db1500_map_pci_irq,
};

static struct platform_device db1500_pci_host_dev = {
	.dev.platform_data = &db1500_pci_pd,
	.name		= "alchemy-pci",
	.id		= 0,
	.num_resources	= ARRAY_SIZE(alchemy_pci_host_res),
	.resource	= alchemy_pci_host_res,
};

int __init db1500_pci_setup(void)
{
	return platform_device_register(&db1500_pci_host_dev);
}

static struct resource au1100_lcd_resources[] = {
	[0] = {
		.start	= AU1100_LCD_PHYS_ADDR,
		.end	= AU1100_LCD_PHYS_ADDR + 0x800 - 1,
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.start	= AU1100_LCD_INT,
		.end	= AU1100_LCD_INT,
		.flags	= IORESOURCE_IRQ,
	}
};

static struct platform_device au1100_lcd_device = {
	.name		= "au1100-lcd",
	.id		= 0,
	.dev = {
		.dma_mask		= &au1xxx_all_dmamask,
		.coherent_dma_mask	= DMA_BIT_MASK(32),
	},
	.num_resources	= ARRAY_SIZE(au1100_lcd_resources),
	.resource	= au1100_lcd_resources,
};

static struct resource alchemy_ac97c_res[] = {
	[0] = {
		.start	= AU1000_AC97_PHYS_ADDR,
		.end	= AU1000_AC97_PHYS_ADDR + 0xfff,
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.start	= DMA_ID_AC97C_TX,
		.end	= DMA_ID_AC97C_TX,
		.flags	= IORESOURCE_DMA,
	},
	[2] = {
		.start	= DMA_ID_AC97C_RX,
		.end	= DMA_ID_AC97C_RX,
		.flags	= IORESOURCE_DMA,
	},
};

static struct platform_device alchemy_ac97c_dev = {
	.name		= "alchemy-ac97c",
	.id		= -1,
	.resource	= alchemy_ac97c_res,
	.num_resources	= ARRAY_SIZE(alchemy_ac97c_res),
};

static struct platform_device alchemy_ac97c_dma_dev = {
	.name		= "alchemy-pcm-dma",
	.id		= 0,
};

Annotation

Implementation Notes