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| author | Krzysztof Hałasa <khc@pm.waw.pl> | 2009-11-15 18:02:10 +0100 |
|---|---|---|
| committer | Krzysztof Hałasa <khc@pm.waw.pl> | 2009-12-05 16:58:39 +0100 |
| commit | ed5b9fa0d1c5ad1e01ff56b9acd3ff52bc783f66 (patch) | |
| tree | d3068a6963c1e15d039323462a399175942fc08c /arch/arm/mach-ixp4xx/include/mach/hardware.h | |
| parent | cba362221b12b102dff1f21b291fdc7b93e24a18 (diff) | |
| download | blackbird-op-linux-ed5b9fa0d1c5ad1e01ff56b9acd3ff52bc783f66.tar.gz blackbird-op-linux-ed5b9fa0d1c5ad1e01ff56b9acd3ff52bc783f66.zip | |
IXP4xx: Extend PCI MMIO indirect address space to 1 GB.
IXP4xx CPUs can indirectly access the whole 4 GB PCI MMIO address space (using
the non-prefetch registers). Previously the available space depended on the CPU
variant, since one of the IXP43x platforms needed more than the usual 128 MB.
1 GB should be enough for everyone, and if not, we can trivially increase it.
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Diffstat (limited to 'arch/arm/mach-ixp4xx/include/mach/hardware.h')
| -rw-r--r-- | arch/arm/mach-ixp4xx/include/mach/hardware.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/arm/mach-ixp4xx/include/mach/hardware.h b/arch/arm/mach-ixp4xx/include/mach/hardware.h index f58a43a23966..f822b223b7e0 100644 --- a/arch/arm/mach-ixp4xx/include/mach/hardware.h +++ b/arch/arm/mach-ixp4xx/include/mach/hardware.h @@ -18,7 +18,13 @@ #define __ASM_ARCH_HARDWARE_H__ #define PCIBIOS_MIN_IO 0x00001000 -#define PCIBIOS_MIN_MEM (cpu_is_ixp43x() ? 0x40000000 : 0x48000000) +#ifdef CONFIG_IXP4XX_INDIRECT_PCI +#define PCIBIOS_MIN_MEM 0x10000000 /* 1 GB of indirect PCI MMIO space */ +#define PCIBIOS_MAX_MEM 0x4FFFFFFF +#else +#define PCIBIOS_MIN_MEM 0x48000000 /* 64 MB of PCI MMIO space */ +#define PCIBIOS_MAX_MEM 0x4BFFFFFF +#endif /* * We override the standard dma-mask routines for bouncing. |
