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@@ -4,145 +4,19 @@
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#define _ASM_BFIN_PCI_H
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#include <asm/scatterlist.h>
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+#include <asm-generic/pci-dma-compat.h>
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+#include <asm-generic/pci.h>
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-/*
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- *
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- * Written by Wout Klaren.
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- */
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-
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-/* Added by Chang Junxiao */
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#define PCIBIOS_MIN_IO 0x00001000
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#define PCIBIOS_MIN_MEM 0x10000000
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-#define PCI_DMA_BUS_IS_PHYS (1)
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-struct pci_ops;
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-
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-/*
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- * Structure with hardware dependent information and functions of the
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- * PCI bus.
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- */
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-struct pci_bus_info {
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-
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- /*
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- * Resources of the PCI bus.
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- */
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- struct resource mem_space;
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- struct resource io_space;
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-
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- /*
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- * System dependent functions.
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- */
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- struct pci_ops *bfin_pci_ops;
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- void (*fixup) (int pci_modify);
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- void (*conf_device) (unsigned char bus, unsigned char device_fn);
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-};
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-
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-#define pcibios_assign_all_busses() 0
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static inline void pcibios_set_master(struct pci_dev *dev)
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{
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-
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/* No special bus mastering setup handling */
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}
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static inline void pcibios_penalize_isa_irq(int irq)
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{
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-
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/* We don't do dynamic PCI IRQ allocation */
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}
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-static inline dma_addr_t pci_map_single(struct pci_dev *hwdev, void *ptr,
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- size_t size, int direction)
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-{
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- if (direction == PCI_DMA_NONE)
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- BUG();
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-
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- /* return virt_to_bus(ptr); */
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- return (dma_addr_t) ptr;
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-}
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-
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-/* Unmap a single streaming mode DMA translation. The dma_addr and size
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- * must match what was provided for in a previous pci_map_single call. All
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- * other usages are undefined.
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- *
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- * After this call, reads by the cpu to the buffer are guarenteed to see
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- * whatever the device wrote there.
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- */
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-static inline void pci_unmap_single(struct pci_dev *hwdev, dma_addr_t dma_addr,
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- size_t size, int direction)
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-{
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- if (direction == PCI_DMA_NONE)
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- BUG();
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-
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- /* Nothing to do */
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-}
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-
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-/* Map a set of buffers described by scatterlist in streaming
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- * mode for DMA. This is the scather-gather version of the
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- * above pci_map_single interface. Here the scatter gather list
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- * elements are each tagged with the appropriate dma address
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- * and length. They are obtained via sg_dma_{address,length}(SG).
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- *
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- * NOTE: An implementation may be able to use a smaller number of
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- * DMA address/length pairs than there are SG table elements.
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- * (for example via virtual mapping capabilities)
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- * The routine returns the number of addr/length pairs actually
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- * used, at most nents.
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- *
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- * Device ownership issues as mentioned above for pci_map_single are
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- * the same here.
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- */
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-static inline int pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg,
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- int nents, int direction)
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-{
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- if (direction == PCI_DMA_NONE)
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- BUG();
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- return nents;
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-}
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-
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-/* Unmap a set of streaming mode DMA translations.
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- * Again, cpu read rules concerning calls here are the same as for
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- * pci_unmap_single() above.
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- */
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-static inline void pci_unmap_sg(struct pci_dev *hwdev, struct scatterlist *sg,
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- int nents, int direction)
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-{
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- if (direction == PCI_DMA_NONE)
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- BUG();
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-
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- /* Nothing to do */
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-}
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-
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-/* Make physical memory consistent for a single
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- * streaming mode DMA translation after a transfer.
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- *
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- * If you perform a pci_map_single() but wish to interrogate the
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- * buffer using the cpu, yet do not wish to teardown the PCI dma
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- * mapping, you must call this function before doing so. At the
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- * next point you give the PCI dma address back to the card, the
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- * device again owns the buffer.
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- */
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-static inline void pci_dma_sync_single(struct pci_dev *hwdev,
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- dma_addr_t dma_handle, size_t size,
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- int direction)
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-{
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- if (direction == PCI_DMA_NONE)
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- BUG();
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-
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- /* Nothing to do */
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-}
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-
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-/* Make physical memory consistent for a set of streaming
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- * mode DMA translations after a transfer.
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- *
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- * The same as pci_dma_sync_single but for a scatter-gather list,
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- * same rules and usage.
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- */
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-static inline void pci_dma_sync_sg(struct pci_dev *hwdev,
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- struct scatterlist *sg, int nelems,
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- int direction)
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-{
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- if (direction == PCI_DMA_NONE)
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- BUG();
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-
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- /* Nothing to do */
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-}
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#endif /* _ASM_BFIN_PCI_H */
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