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[PATCH] v850: Update PCI support 

These changes are untested (I no longer have the hardware).

Signed-off-by: Miles Bader <miles@gnu.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Miles Bader 2005-07-27 11:44:55 -07:00 committed by Linus Torvalds
parent 947ac8b926
commit 8b2bf06994
3 changed files with 76 additions and 12 deletions
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37
arch/v850/kernel/rte_mb_a_pci.c
View File

@ -1,8 +1,8 @@
/*
* arch/v850/kernel/mb_a_pci.c -- PCI support for Midas lab RTE-MOTHER-A board
*
* Copyright (C) 2001,02,03 NEC Electronics Corporation
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
* Copyright (C) 2001,02,03,05 NEC Electronics Corporation
* Copyright (C) 2001,02,03,05 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
@ -743,15 +743,17 @@ pci_unmap_sg (struct pci_dev *pdev, struct scatterlist *sg, int sg_len,int dir)
for a scatter-gather list, same rules and usage. */
void
pci_dma_sync_sg_for_cpu (struct pci_dev *dev, struct scatterlist *sg, int sg_len,
int dir)
pci_dma_sync_sg_for_cpu (struct pci_dev *dev,
struct scatterlist *sg, int sg_len,
int dir)
{
BUG ();
}
void
pci_dma_sync_sg_for_device (struct pci_dev *dev, struct scatterlist *sg, int sg_len,
int dir)
pci_dma_sync_sg_for_device (struct pci_dev *dev,
struct scatterlist *sg, int sg_len,
int dir)
{
BUG ();
}
@ -785,6 +787,27 @@ pci_free_consistent (struct pci_dev *pdev, size_t size, void *cpu_addr,
free_mb_sram (mb_sram_mem, size);
}
/* iomap/iomap */
void __iomem *pci_iomap (struct pci_dev *dev, int bar, unsigned long max)
{
unsigned long start = pci_resource_start (dev, bar);
unsigned long len = pci_resource_len (dev, bar);
if (!start || len == 0)
return 0;
/* None of the ioremap functions actually do anything, other than
re-casting their argument, so don't bother differentiating them. */
return ioremap (start, len);
}
void pci_iounmap (struct pci_dev *dev, void __iomem *addr)
{
/* nothing */
}
/* symbol exports (for modules) */
@ -794,3 +817,5 @@ EXPORT_SYMBOL (pci_alloc_consistent);
EXPORT_SYMBOL (pci_free_consistent);
EXPORT_SYMBOL (pci_dma_sync_single_for_cpu);
EXPORT_SYMBOL (pci_dma_sync_single_for_device);
EXPORT_SYMBOL (pci_iomap);
EXPORT_SYMBOL (pci_iounmap);

14
arch/v850/kernel/vmlinux.lds.S
View File

@ -12,6 +12,7 @@
*/
#include <linux/config.h>
#define VMLINUX_SYMBOL(_sym_) _##_sym_
#include <asm-generic/vmlinux.lds.h>
@ -42,6 +43,19 @@
*(.rodata) *(.rodata.*) \
*(__vermagic) /* Kernel version magic */ \
*(.rodata1) \
/* PCI quirks */ \
___start_pci_fixups_early = . ; \
*(.pci_fixup_early) \
___end_pci_fixups_early = . ; \
___start_pci_fixups_header = . ; \
*(.pci_fixup_header) \
___end_pci_fixups_header = . ; \
___start_pci_fixups_final = . ; \
*(.pci_fixup_final) \
___end_pci_fixups_final = . ; \
___start_pci_fixups_enable = . ; \
*(.pci_fixup_enable) \
___end_pci_fixups_enable = . ; \
/* Kernel symbol table: Normal symbols */ \
___start___ksymtab = .; \
*(__ksymtab) \

37
include/asm-v850/pci.h
View File

@ -1,8 +1,8 @@
/*
* include/asm-v850/pci.h -- PCI support
*
* Copyright (C) 2001,02 NEC Corporation
* Copyright (C) 2001,02 Miles Bader <miles@gnu.org>
* Copyright (C) 2001,02,05 NEC Corporation
* Copyright (C) 2001,02,05 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
@ -48,12 +48,12 @@ pci_unmap_single (struct pci_dev *pdev, dma_addr_t dma_addr, size_t size,
perform a pci_dma_sync_for_device, and then the device again owns
the buffer. */
extern void
pci_dma_sync_single_for_cpu (struct pci_dev *dev, dma_addr_t dma_addr, size_t size,
int dir);
pci_dma_sync_single_for_cpu (struct pci_dev *dev, dma_addr_t dma_addr,
size_t size, int dir);
extern void
pci_dma_sync_single_for_device (struct pci_dev *dev, dma_addr_t dma_addr, size_t size,
int dir);
pci_dma_sync_single_for_device (struct pci_dev *dev, dma_addr_t dma_addr,
size_t size, int dir);
/* Do multiple DMA mappings at once. */
@ -65,6 +65,28 @@ extern void
pci_unmap_sg (struct pci_dev *pdev, struct scatterlist *sg, int sg_len,
int dir);
/* SG-list versions of pci_dma_sync functions. */
extern void
pci_dma_sync_sg_for_cpu (struct pci_dev *dev,
struct scatterlist *sg, int sg_len,
int dir);
extern void
pci_dma_sync_sg_for_device (struct pci_dev *dev,
struct scatterlist *sg, int sg_len,
int dir);
#define pci_map_page(dev, page, offs, size, dir) \
pci_map_single(dev, (page_address(page) + (offs)), size, dir)
#define pci_unmap_page(dev,addr,sz,dir) \
pci_unmap_single(dev, addr, sz, dir)
/* Test for pci_map_single or pci_map_page having generated an error. */
static inline int
pci_dma_mapping_error (dma_addr_t dma_addr)
{
return dma_addr == 0;
}
/* Allocate and map kernel buffer using consistent mode DMA for PCI
device. Returns non-NULL cpu-view pointer to the buffer if
successful and sets *DMA_ADDR to the pci side dma address as well,
@ -91,6 +113,9 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev,
}
#endif
extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
extern void pci_iounmap (struct pci_dev *dev, void __iomem *addr);
static inline void pcibios_add_platform_entries(struct pci_dev *dev)
{
}