diff options
Diffstat (limited to 'include/asm-mips/dma.h')
| -rw-r--r-- | include/asm-mips/dma.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/include/asm-mips/dma.h b/include/asm-mips/dma.h index 833437d31ef..1353c81065d 100644 --- a/include/asm-mips/dma.h +++ b/include/asm-mips/dma.h @@ -84,14 +84,14 @@ * Deskstations or Acer PICA but not the much more versatile DMA logic used * for the local devices on Acer PICA or Magnums. */ -#ifdef CONFIG_SGI_IP22 -/* Horrible hack to have a correct DMA window on IP22 */ -#include <asm/sgi/mc.h> -#define MAX_DMA_ADDRESS (PAGE_OFFSET + SGIMC_SEG0_BADDR + 0x01000000) +#if defined(CONFIG_SGI_IP22) || defined(CONFIG_SGI_IP28) +/* don't care; ISA bus master won't work, ISA slave DMA supports 32bit addr */ +#define MAX_DMA_ADDRESS PAGE_OFFSET #else #define MAX_DMA_ADDRESS (PAGE_OFFSET + 0x01000000) #endif #define MAX_DMA_PFN PFN_DOWN(virt_to_phys((void *)MAX_DMA_ADDRESS)) +#define MAX_DMA32_PFN (1UL << (32 - PAGE_SHIFT)) /* 8237 DMA controllers */ #define IO_DMA1_BASE 0x00 /* 8 bit slave DMA, channels 0..3 */ |