arch/sh/drivers/pci/pcie-sh7786.c

Source file repositories/reference/linux-study-clean/arch/sh/drivers/pci/pcie-sh7786.c

File Facts

System
Linux kernel
Corpus path
arch/sh/drivers/pci/pcie-sh7786.c
Extension
.c
Size
14972 bytes
Lines
608
Domain
Architecture Layer
Bucket
arch/sh
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

struct sh7786_pcie_port {
	struct pci_channel	*hose;
	struct clk		*fclk, phy_clk;
	unsigned int		index;
	int			endpoint;
	int			link;
};

static struct sh7786_pcie_port *sh7786_pcie_ports;
static unsigned int nr_ports;
size_t memsize;
u64 memstart;

static struct sh7786_pcie_hwops {
	int (*core_init)(void);
	async_func_t port_init_hw;
} *sh7786_pcie_hwops;

static struct resource sh7786_pci0_resources[] = {
	{
		.name	= "PCIe0 MEM 0",
		.start	= 0xfd000000,
		.end	= 0xfd000000 + SZ_8M - 1,
		.flags	= IORESOURCE_MEM,
	}, {
		.name	= "PCIe0 MEM 1",
		.start	= 0xc0000000,
		.end	= 0xc0000000 + SZ_512M - 1,
		.flags	= IORESOURCE_MEM | IORESOURCE_MEM_32BIT,
	}, {
		.name	= "PCIe0 MEM 2",
		.start	= 0x10000000,
		.end	= 0x10000000 + SZ_64M - 1,
		.flags	= IORESOURCE_MEM,
	}, {
		.name	= "PCIe0 IO",
		.start	= 0xfe100000,
		.end	= 0xfe100000 + SZ_1M - 1,
		.flags	= IORESOURCE_IO,
	},
};

static struct resource sh7786_pci1_resources[] = {
	{
		.name	= "PCIe1 MEM 0",
		.start	= 0xfd800000,
		.end	= 0xfd800000 + SZ_8M - 1,
		.flags	= IORESOURCE_MEM,
	}, {
		.name	= "PCIe1 MEM 1",
		.start	= 0xa0000000,
		.end	= 0xa0000000 + SZ_512M - 1,
		.flags	= IORESOURCE_MEM | IORESOURCE_MEM_32BIT,
	}, {
		.name	= "PCIe1 MEM 2",
		.start	= 0x30000000,
		.end	= 0x30000000 + SZ_256M - 1,
		.flags	= IORESOURCE_MEM | IORESOURCE_MEM_32BIT,
	}, {
		.name	= "PCIe1 IO",
		.start	= 0xfe300000,
		.end	= 0xfe300000 + SZ_1M - 1,
		.flags	= IORESOURCE_IO,
	},
};

static struct resource sh7786_pci2_resources[] = {
	{
		.name	= "PCIe2 MEM 0",
		.start	= 0xfc800000,
		.end	= 0xfc800000 + SZ_4M - 1,
		.flags	= IORESOURCE_MEM,
	}, {
		.name	= "PCIe2 MEM 1",
		.start	= 0x80000000,
		.end	= 0x80000000 + SZ_512M - 1,
		.flags	= IORESOURCE_MEM | IORESOURCE_MEM_32BIT,
	}, {
		.name	= "PCIe2 MEM 2",
		.start	= 0x20000000,
		.end	= 0x20000000 + SZ_256M - 1,
		.flags	= IORESOURCE_MEM | IORESOURCE_MEM_32BIT,
	}, {
		.name	= "PCIe2 IO",
		.start	= 0xfcd00000,
		.end	= 0xfcd00000 + SZ_1M - 1,
		.flags	= IORESOURCE_IO,
	},
};

Annotation

Implementation Notes