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-rw-r--r--arch/arm/mach-ixp4xx/common-pci.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/arch/arm/mach-ixp4xx/common-pci.c b/arch/arm/mach-ixp4xx/common-pci.c
index e9a58939572..2131832ee6b 100644
--- a/arch/arm/mach-ixp4xx/common-pci.c
+++ b/arch/arm/mach-ixp4xx/common-pci.c
@@ -316,6 +316,11 @@ static int abort_handler(unsigned long addr, unsigned int fsr, struct pt_regs *r
}
+static int ixp4xx_needs_bounce(struct device *dev, dma_addr_t dma_addr, size_t size)
+{
+ return (dma_addr + size) >= SZ_64M;
+}
+
/*
* Setup DMA mask to 64MB on PCI devices. Ignore all other devices.
*/
@@ -324,7 +329,7 @@ static int ixp4xx_pci_platform_notify(struct device *dev)
if(dev->bus == &pci_bus_type) {
*dev->dma_mask = SZ_64M - 1;
dev->coherent_dma_mask = SZ_64M - 1;
- dmabounce_register_dev(dev, 2048, 4096);
+ dmabounce_register_dev(dev, 2048, 4096, ixp4xx_needs_bounce);
}
return 0;
}
@@ -337,15 +342,15 @@ static int ixp4xx_pci_platform_notify_remove(struct device *dev)
return 0;
}
-int dma_needs_bounce(struct device *dev, dma_addr_t dma_addr, size_t size)
-{
- return (dev->bus == &pci_bus_type ) && ((dma_addr + size) >= SZ_64M);
-}
-
void __init ixp4xx_pci_preinit(void)
{
unsigned long cpuid = read_cpuid_id();
+#ifdef CONFIG_IXP4XX_INDIRECT_PCI
+ pcibios_min_mem = 0x10000000; /* 1 GB of indirect PCI MMIO space */
+#else
+ pcibios_min_mem = 0x48000000; /* 64 MB of PCI MMIO space */
+#endif
/*
* Determine which PCI read method to use.
* Rev 0 IXP425 requires workaround.