1 files changed, 82 insertions, 0 deletions
diff --git a/package/madwifi/patches/326-soc_dma.patch b/package/madwifi/patches/326-soc_dma.patch
new file mode 100644
index 000000000..8ac6187a3
--- /dev/null
+++ b/package/madwifi/patches/326-soc_dma.patch
@@ -0,0 +1,82 @@
+Index: madwifi-trunk-r3280/ath/if_ath_ahb.c
+===================================================================
+--- madwifi-trunk-r3280.orig/ath/if_ath_ahb.c	2008-01-28 19:12:37.022826852 +0100
++++ madwifi-trunk-r3280/ath/if_ath_ahb.c	2008-01-28 19:31:09.184472483 +0100
+@@ -69,27 +69,13 @@
+ void *
+ bus_alloc_consistent(void *hwdev, size_t size, dma_addr_t *dma_handle)
+ {
+-	void *ret;
+-
+-	ret = (void *) __get_free_pages(GFP_ATOMIC, get_order(size));
+-
+-	if (ret != NULL) {
+-		memset(ret, 0, size);
+-		*dma_handle = __pa(ret);
+-		dma_cache_wback_inv((unsigned long) ret, size);
+-		ret = UNCAC_ADDR(ret);
+-	}
+-
+-	return ret;
++	return dma_alloc_coherent(hwdev, size, dma_handle, GFP_ATOMIC);
+ }
+ 
+ void
+ bus_free_consistent(void *hwdev, size_t size, void *vaddr, dma_addr_t dma_handle)
+ {
+-	unsigned long addr = (unsigned long) vaddr;
+-
+-	addr = CAC_ADDR(addr);
+-	free_pages(addr, get_order(size));
++	dma_free_coherent(hwdev, size, vaddr, dma_handle);
+ }
+ 
+ static int
+Index: madwifi-trunk-r3280/ath/if_ath_ahb.h
+===================================================================
+--- madwifi-trunk-r3280.orig/ath/if_ath_ahb.h	2008-01-28 19:20:06.016413537 +0100
++++ madwifi-trunk-r3280/ath/if_ath_ahb.h	2008-01-28 19:30:40.978865135 +0100
+@@ -89,8 +89,8 @@
+ #define AR531X_RADIO1_MASK	0x000c
+ #define AR531X_RADIO1_S		2
+ 
+-#define BUS_DMA_FROMDEVICE	0
+-#define BUS_DMA_TODEVICE	1
++#define BUS_DMA_FROMDEVICE	DMA_FROM_DEVICE
++#define BUS_DMA_TODEVICE	DMA_TO_DEVICE
+ 
+ #define AR531X_APBBASE		0xbc000000
+ #define AR531X_RESETTMR		(AR531X_APBBASE  + 0x3000)
+@@ -115,29 +115,19 @@
+ static __inline void bus_dma_sync_single(void *hwdev, dma_addr_t dma_handle,
+ 	size_t size, int direction)
+ {
+-	unsigned long addr;
+-
+-	addr = (unsigned long) __va(dma_handle);
+-	dma_cache_wback_inv(addr, size);
++	dma_sync_single(hwdev, dma_handle, size, direction);
+ }
+ 
+ static __inline dma_addr_t bus_map_single(void *hwdev, void *ptr,
+ 	size_t size, int direction)
+ {
+-	dma_cache_wback_inv((unsigned long) ptr, size);
+-
+-	return __pa(ptr);
++	return dma_map_single(hwdev, ptr, size, direction);
+ }
+ 
+ static __inline void bus_unmap_single(void *hwdev, dma_addr_t dma_addr,
+ 	size_t size, int direction)
+ {
+-	if (direction != BUS_DMA_TODEVICE) {
+-		unsigned long addr;
+-
+-		addr = (unsigned long)__va(dma_addr);
+-		dma_cache_wback_inv(addr, size);
+-	}
++	dma_unmap_single(hwdev, dma_addr, size, direction);
+ }
+ void *bus_alloc_consistent(void *, size_t, dma_addr_t *);
+ void bus_free_consistent(void *, size_t, void *, dma_addr_t);