diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-01 10:53:43 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-01 10:53:43 -0700 |
commit | 00e9028a95fb8a4d79f2fb695a853f33ea7d3b57 (patch) | |
tree | 2dea2ae498a6ce57de8890e87185aca5e9f3ad2d /arch/sh/include/asm/pci.h | |
parent | 57b1494d2ba544c62673234da6115c21fac27ffc (diff) | |
parent | 7cb93181629c613ee2b8f4ffe3446f8003074842 (diff) | |
download | kernel_samsung_smdk4412-00e9028a95fb8a4d79f2fb695a853f33ea7d3b57.zip kernel_samsung_smdk4412-00e9028a95fb8a4d79f2fb695a853f33ea7d3b57.tar.gz kernel_samsung_smdk4412-00e9028a95fb8a4d79f2fb695a853f33ea7d3b57.tar.bz2 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (28 commits)
mm/hugetlb.c must #include <asm/io.h>
video: Fix up hp6xx driver build regressions.
sh: defconfig updates.
sh: Kill off stray mach-rsk7203 reference.
serial: sh-sci: Fix up SH7760/SH7780/SH7785 early printk regression.
sh: Move out individual boards without mach groups.
sh: Make sure AT_SYSINFO_EHDR is exposed to userspace in asm/auxvec.h.
sh: Allow SH-3 and SH-5 to use common headers.
sh: Provide common CPU headers, prune the SH-2 and SH-2A directories.
sh/maple: clean maple bus code
sh: More header path fixups for mach dir refactoring.
sh: Move out the solution engine headers to arch/sh/include/mach-se/
sh: I2C fix for AP325RXA and Migo-R
sh: Shuffle the board directories in to mach groups.
sh: dma-sh: Fix up dreamcast dma.h mach path.
sh: Switch KBUILD_DEFCONFIG to shx3_defconfig.
sh: Add ARCH_DEFCONFIG entries for sh and sh64.
sh: Fix compile error of Solution Engine
sh: Proper __put_user_asm() size mismatch fix.
sh: Stub in a dummy ENTRY_OFFSET for uImage offset calculation.
...
Diffstat (limited to 'arch/sh/include/asm/pci.h')
-rw-r--r-- | arch/sh/include/asm/pci.h | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/arch/sh/include/asm/pci.h b/arch/sh/include/asm/pci.h new file mode 100644 index 0000000..df1d383 --- /dev/null +++ b/arch/sh/include/asm/pci.h @@ -0,0 +1,144 @@ +#ifndef __ASM_SH_PCI_H +#define __ASM_SH_PCI_H + +#ifdef __KERNEL__ + +#include <linux/dma-mapping.h> + +/* Can be used to override the logic in pci_scan_bus for skipping + already-configured bus numbers - to be used for buggy BIOSes + or architectures with incomplete PCI setup by the loader */ + +#define pcibios_assign_all_busses() 1 +#define pcibios_scan_all_fns(a, b) 0 + +/* + * A board can define one or more PCI channels that represent built-in (or + * external) PCI controllers. + */ +struct pci_channel { + struct pci_ops *pci_ops; + struct resource *io_resource; + struct resource *mem_resource; + int first_devfn; + int last_devfn; +}; + +/* + * Each board initializes this array and terminates it with a NULL entry. + */ +extern struct pci_channel board_pci_channels[]; + +#define PCIBIOS_MIN_IO board_pci_channels->io_resource->start +#define PCIBIOS_MIN_MEM board_pci_channels->mem_resource->start + +/* + * I/O routine helpers + */ +#if defined(CONFIG_CPU_SUBTYPE_SH7780) || defined(CONFIG_CPU_SUBTYPE_SH7785) +#define PCI_IO_AREA 0xFE400000 +#define PCI_IO_SIZE 0x00400000 +#elif defined(CONFIG_CPU_SH5) +extern unsigned long PCI_IO_AREA; +#define PCI_IO_SIZE 0x00010000 +#else +#define PCI_IO_AREA 0xFE240000 +#define PCI_IO_SIZE 0x00040000 +#endif + +#define PCI_MEM_SIZE 0x01000000 + +#define SH4_PCIIOBR_MASK 0xFFFC0000 +#define pci_ioaddr(addr) (PCI_IO_AREA + (addr & ~SH4_PCIIOBR_MASK)) + +#if defined(CONFIG_PCI) +#define is_pci_ioaddr(port) \ + (((port) >= PCIBIOS_MIN_IO) && \ + ((port) < (PCIBIOS_MIN_IO + PCI_IO_SIZE))) +#define is_pci_memaddr(port) \ + (((port) >= PCIBIOS_MIN_MEM) && \ + ((port) < (PCIBIOS_MIN_MEM + PCI_MEM_SIZE))) +#else +#define is_pci_ioaddr(port) (0) +#define is_pci_memaddr(port) (0) +#endif + +struct pci_dev; + +extern void pcibios_set_master(struct pci_dev *dev); + +static inline void pcibios_penalize_isa_irq(int irq, int active) +{ + /* We don't do dynamic PCI IRQ allocation */ +} + +/* Dynamic DMA mapping stuff. + * SuperH has everything mapped statically like x86. + */ + +/* The PCI address space does equal the physical memory + * address space. The networking and block device layers use + * this boolean for bounce buffer decisions. + */ +#define PCI_DMA_BUS_IS_PHYS (1) + +#include <linux/types.h> +#include <linux/slab.h> +#include <asm/scatterlist.h> +#include <linux/string.h> +#include <asm/io.h> + +/* pci_unmap_{single,page} being a nop depends upon the + * configuration. + */ +#ifdef CONFIG_SH_PCIDMA_NONCOHERENT +#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \ + dma_addr_t ADDR_NAME; +#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \ + __u32 LEN_NAME; +#define pci_unmap_addr(PTR, ADDR_NAME) \ + ((PTR)->ADDR_NAME) +#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \ + (((PTR)->ADDR_NAME) = (VAL)) +#define pci_unmap_len(PTR, LEN_NAME) \ + ((PTR)->LEN_NAME) +#define pci_unmap_len_set(PTR, LEN_NAME, VAL) \ + (((PTR)->LEN_NAME) = (VAL)) +#else +#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) +#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) +#define pci_unmap_addr(PTR, ADDR_NAME) (0) +#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0) +#define pci_unmap_len(PTR, LEN_NAME) (0) +#define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0) +#endif + +#ifdef CONFIG_PCI +static inline void pci_dma_burst_advice(struct pci_dev *pdev, + enum pci_dma_burst_strategy *strat, + unsigned long *strategy_parameter) +{ + *strat = PCI_DMA_BURST_INFINITY; + *strategy_parameter = ~0UL; +} +#endif + +/* Board-specific fixup routines. */ +void pcibios_fixup(void); +int pcibios_init_platform(void); +int pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin); + +#ifdef CONFIG_PCI_AUTO +int pciauto_assign_resources(int busno, struct pci_channel *hose); +#endif + +#endif /* __KERNEL__ */ + +/* generic pci stuff */ +#include <asm-generic/pci.h> + +/* generic DMA-mapping stuff */ +#include <asm-generic/pci-dma-compat.h> + +#endif /* __ASM_SH_PCI_H */ + |