aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-ixp4xx/common-pci.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-ixp4xx/common-pci.c')
-rw-r--r--arch/arm/mach-ixp4xx/common-pci.c23
1 files changed, 0 insertions, 23 deletions
diff --git a/arch/arm/mach-ixp4xx/common-pci.c b/arch/arm/mach-ixp4xx/common-pci.c
index a54b3db8036..e9a58939572 100644
--- a/arch/arm/mach-ixp4xx/common-pci.c
+++ b/arch/arm/mach-ixp4xx/common-pci.c
@@ -342,29 +342,6 @@ int dma_needs_bounce(struct device *dev, dma_addr_t dma_addr, size_t size)
342 return (dev->bus == &pci_bus_type ) && ((dma_addr + size) >= SZ_64M); 342 return (dev->bus == &pci_bus_type ) && ((dma_addr + size) >= SZ_64M);
343} 343}
344 344
345/*
346 * Only first 64MB of memory can be accessed via PCI.
347 * We use GFP_DMA to allocate safe buffers to do map/unmap.
348 * This is really ugly and we need a better way of specifying
349 * DMA-capable regions of memory.
350 */
351void __init ixp4xx_adjust_zones(unsigned long *zone_size,
352 unsigned long *zhole_size)
353{
354 unsigned int sz = SZ_64M >> PAGE_SHIFT;
355
356 /*
357 * Only adjust if > 64M on current system
358 */
359 if (zone_size[0] <= sz)
360 return;
361
362 zone_size[1] = zone_size[0] - sz;
363 zone_size[0] = sz;
364 zhole_size[1] = zhole_size[0];
365 zhole_size[0] = 0;
366}
367
368void __init ixp4xx_pci_preinit(void) 345void __init ixp4xx_pci_preinit(void)
369{ 346{
370 unsigned long cpuid = read_cpuid_id(); 347 unsigned long cpuid = read_cpuid_id();