diff options
Diffstat (limited to 'target/linux/coldfire/patches/050-Update-the-DMA-map-function-for-CF-platform.patch')
| -rw-r--r-- | target/linux/coldfire/patches/050-Update-the-DMA-map-function-for-CF-platform.patch | 37 |
1 files changed, 0 insertions, 37 deletions
diff --git a/target/linux/coldfire/patches/050-Update-the-DMA-map-function-for-CF-platform.patch b/target/linux/coldfire/patches/050-Update-the-DMA-map-function-for-CF-platform.patch deleted file mode 100644 index a0a7ba7ee3..0000000000 --- a/target/linux/coldfire/patches/050-Update-the-DMA-map-function-for-CF-platform.patch +++ /dev/null @@ -1,37 +0,0 @@ -From 2411a3e2b5dfa4784bbe2548f8ef0ce1aea0379e Mon Sep 17 00:00:00 2001 -From: Jason Jin <Jason.jin@freescale.com> -Date: Thu, 4 Aug 2011 09:59:55 +0800 -Subject: [PATCH 50/52] Update the DMA map function for CF platform - -In the DMA map, only the dcache need to be flushed. -Flush both dcache and icache will decrease the system -performance. - -Signed-off-by: Jason Jin <Jason.jin@freescale.com> ---- - arch/m68k/kernel/dma.c | 12 ++++++++++-- - 1 files changed, 10 insertions(+), 2 deletions(-) - ---- a/arch/m68k/kernel/dma.c -+++ b/arch/m68k/kernel/dma.c -@@ -94,10 +94,18 @@ void dma_sync_single_for_device(struct d - { - switch (dir) { - case DMA_TO_DEVICE: -- cache_push(handle, size); -+#if defined(CONFIG_M5445X) || defined(CONFIG_M5441X) -+ flush_dcache_range(handle, handle + size); -+#else -+ flush_dcache(); -+#endif - break; - case DMA_FROM_DEVICE: -- cache_clear(handle, size); -+#if defined(CONFIG_M5445X) || defined(CONFIG_M5441X) -+ cf_dcache_inv_range(handle, handle + size); -+#else -+ flush_dcache(); -+#endif - break; - case PCI_DMA_BIDIRECTIONAL: - flush_dcache(); |