diff options
| author | Paul Mundt <lethal@linux-sh.org> | 2009-04-20 13:24:57 +0400 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2009-04-20 13:24:57 +0400 |
| commit | 99f95f117848088f2708b45c70be73152e78bb8a (patch) | |
| tree | ad2f71af24524c723d1a176be3269e48c0718118 /arch/sh/include/asm/pci.h | |
| parent | 0bb34a6bf1f71d5ad2abfda582a2c2794957bc7b (diff) | |
| download | linux-99f95f117848088f2708b45c70be73152e78bb8a.tar.xz | |
sh: pci: Rework fixed region checks in ioremap().
Not all PCI channels have non-translatable memory windows, this is a
special property of the on-chip PCIC with its 0xfd00... mapping, handle
this explicitly.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/include/asm/pci.h')
| -rw-r--r-- | arch/sh/include/asm/pci.h | 29 |
1 files changed, 11 insertions, 18 deletions
diff --git a/arch/sh/include/asm/pci.h b/arch/sh/include/asm/pci.h index 532428289772..82a9369511b5 100644 --- a/arch/sh/include/asm/pci.h +++ b/arch/sh/include/asm/pci.h @@ -90,7 +90,6 @@ static inline void pcibios_penalize_isa_irq(int irq, int active) #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) @@ -99,24 +98,18 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev, *strategy_parameter = ~0UL; } -static inline int __is_pci_memory(unsigned long phys_addr, unsigned long size) -{ - struct pci_channel *p; - struct resource *res; - - for (p = board_pci_channels; p->init; p++) { - res = p->mem_resource; - if (p->enabled && (phys_addr >= res->start) && - (phys_addr + size) <= (res->end + 1)) - return 1; - } - return 0; -} +#ifdef CONFIG_SUPERH32 +/* + * If we're on an SH7751 or SH7780 PCI controller, PCI memory is mapped + * at the end of the address space in a special non-translatable area. + */ +#define PCI_MEM_FIXED_START 0xfd000000 +#define PCI_MEM_FIXED_END (PCI_MEM_FIXED_START + 0x01000000) + +#define is_pci_memory_fixed_range(s, e) \ + ((s) >= PCI_MEM_FIXED_START && (e) < PCI_MEM_FIXED_END) #else -static inline int __is_pci_memory(unsigned long phys_addr, unsigned long size) -{ - return 0; -} +#define is_pci_memory_fixed_range(s, e) (0) #endif /* Board-specific fixup routines. */ |