+++ /dev/null
-/*
- * arch/ubicom32/include/asm/pci.h
- * Definitions of PCI operations for Ubicom32 architecture.
- *
- * (C) Copyright 2009, Ubicom, Inc.
- *
- * This file is part of the Ubicom32 Linux Kernel Port.
- *
- * The Ubicom32 Linux Kernel Port is free software: you can redistribute
- * it and/or modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation, either version 2 of the
- * License, or (at your option) any later version.
- *
- * The Ubicom32 Linux Kernel Port is distributed in the hope that it
- * will be useful, but WITHOUT ANY WARRANTY; without even the implied
- * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
- * the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with the Ubicom32 Linux Kernel Port. If not,
- * see <http://www.gnu.org/licenses/>.
- *
- * Ubicom32 implementation derived from (with many thanks):
- * arch/m68knommu
- * arch/blackfin
- * arch/parisc
- */
-#ifndef _ASM_UBICOM32_PCI_H
-#define _ASM_UBICOM32_PCI_H
-
-#include <asm/io.h>
-
-/* 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)
-
-
-
-/*
- * Perform a master read/write to the PCI bus.
- * These functions return a PCI_RESP_xxx code.
- */
-extern u8 pci_read_u32(u8 pci_cmd, u32 address, u32 *data);
-extern u8 pci_write_u32(u8 pci_cmd, u32 address, u32 data);
-extern u8 pci_read_u16(u8 pci_cmd, u32 address, u16 *data);
-extern u8 pci_write_u16(u8 pci_cmd, u32 address, u16 data);
-extern u8 pci_read_u8(u8 pci_cmd, u32 address, u8 *data);
-extern u8 pci_write_u8(u8 pci_cmd, u32 address, u8 data);
-
-
-#define PCIBIOS_MIN_IO 0x100
-#define PCIBIOS_MIN_MEM 0x10000000
-
-#define pcibios_assign_all_busses() 0
-#define pcibios_scan_all_fns(a, b) 0
-extern void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
- struct resource *res);
-
-extern void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
- struct pci_bus_region *region);
-
-struct pci_sys_data;
-struct pci_bus;
-
-struct hw_pci {
- struct list_head buses;
- int nr_controllers;
- int (*setup)(int nr, struct pci_sys_data *);
- struct pci_bus *(*scan)(int nr, struct pci_sys_data *);
- void (*preinit)(void);
- void (*postinit)(void);
- u8 (*swizzle)(struct pci_dev *dev, u8 *pin);
- int (*map_irq)(struct pci_dev *dev, u8 slot, u8 pin);
-};
-
-/*
- * Per-controller structure
- */
-struct pci_sys_data {
- struct list_head node;
- int busnr; /* primary bus number */
- u64 mem_offset; /* bus->cpu memory mapping offset */
- unsigned long io_offset; /* bus->cpu IO mapping offset */
- struct pci_bus *bus; /* PCI bus */
- struct resource *resource[3]; /* Primary PCI bus resources */
- /* Bridge swizzling */
- u8 (*swizzle)(struct pci_dev *, u8 *);
- /* IRQ mapping */
- int (*map_irq)(struct pci_dev *, u8, u8);
- struct hw_pci *hw;
-};
-
-static inline struct resource *
-pcibios_select_root(struct pci_dev *pdev, struct resource *res)
-{
- struct resource *root = NULL;
-
- if (res->flags & IORESOURCE_IO)
- root = &ioport_resource;
- if (res->flags & IORESOURCE_MEM)
- root = &iomem_resource;
-
- return root;
-}
-
-static inline void pcibios_set_master(struct pci_dev *dev)
-{
- /* No special bus mastering setup handling */
-}
-#define HAVE_ARCH_PCI_SET_DMA_MAX_SEGMENT_SIZE 1
-#define HAVE_ARCH_PCI_SET_DMA_SEGMENT_BOUNDARY 1
-
-#ifdef CONFIG_PCI
-static inline void * pci_alloc_consistent(struct pci_dev *hwdev, size_t size,
- dma_addr_t *dma_handle)
-{
- void *vaddr = kmalloc(size, GFP_KERNEL);
- if(vaddr != NULL) {
- *dma_handle = virt_to_phys(vaddr);
- }
- return vaddr;
-}
-
-static inline int pci_dma_supported(struct pci_dev *hwdev, dma_addr_t mask)
-{
- return 1;
-}
-
-static inline void pci_free_consistent(struct pci_dev *hwdev, size_t size,
- void *cpu_addr, dma_addr_t dma_handle)
-{
- kfree(cpu_addr);
- return;
-}
-
-static inline dma_addr_t pci_map_single(struct pci_dev *hwdev, void *ptr,
- size_t size, int direction)
-{
- return virt_to_phys(ptr);
-}
-
-static inline void pci_unmap_single(struct pci_dev *hwdev, dma_addr_t dma_addr,
- size_t size, int direction)
-{
- return;
-}
-
-static inline dma_addr_t
-pci_map_page(struct pci_dev *hwdev, struct page *page,
- unsigned long offset, size_t size, int direction)
-{
- return pci_map_single(hwdev, page_address(page) + offset, size, (int)direction);
-}
-
-static inline void
-pci_unmap_page(struct pci_dev *hwdev, dma_addr_t dma_address,
- size_t size, int direction)
-{
- pci_unmap_single(hwdev, dma_address, size, direction);
-}
-
-static inline int
-pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg,
- int nents, int direction)
-{
- return nents;
-}
-
-static inline void
-pci_unmap_sg(struct pci_dev *hwdev, struct scatterlist *sg,
- int nents, int direction)
-{
-}
-
-static inline void
-pci_dma_sync_sg_for_cpu(struct pci_dev *hwdev, struct scatterlist *sg,
- int nelems, int direction)
-{
-}
-
-static inline void
-pci_dma_sync_sg_for_device(struct pci_dev *hwdev, struct scatterlist *sg,
- int nelems, int direction)
-{
-}
-
-static inline void
-pci_dma_sync_single_for_cpu(struct pci_dev *hwdev, dma_addr_t dma_handle,
- size_t size, int direction)
-{
-}
-
-static inline void
-pci_dma_sync_single_for_device(struct pci_dev *hwdev, dma_addr_t dma_handle,
- size_t size, int direction)
-{
-}
-
-static inline int
-pci_dma_mapping_error(struct pci_dev *hwdev, dma_addr_t dma_addr)
-{
- return dma_addr == 0;
-}
-extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
-extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
-#endif
-
-#endif /* _ASM_UBICOM32_PCI_H */
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