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authorBarry Song <barry.song@analog.com>2009-12-02 09:13:36 (GMT)
committerMike Frysinger <vapier@gentoo.org>2009-12-15 05:15:48 (GMT)
commitc45c06596e0d45125d25beb0fe24a68aef1f1046 (patch)
treea556caee3f3f14ae9fd0eb5bb9e7053ecd8c63e8 /arch/blackfin/Kconfig
parent5df326aca48b8631c9e3c90c76d7e9f0b466a721 (diff)
downloadlinux-c45c06596e0d45125d25beb0fe24a68aef1f1046.tar.xz
Blackfin: support smaller uncached DMA chunks for memory constrained systems
When working with 8 meg systems, forcing a 1 meg DMA chunk heavily cuts into the available resources. So support smaller chunks to better cover needs for these systems. Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'arch/blackfin/Kconfig')
-rw-r--r--arch/blackfin/Kconfig6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index d703247..8141b1e 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -896,6 +896,12 @@ config DMA_UNCACHED_2M
bool "Enable 2M DMA region"
config DMA_UNCACHED_1M
bool "Enable 1M DMA region"
+config DMA_UNCACHED_512K
+ bool "Enable 512K DMA region"
+config DMA_UNCACHED_256K
+ bool "Enable 256K DMA region"
+config DMA_UNCACHED_128K
+ bool "Enable 128K DMA region"
config DMA_UNCACHED_NONE
bool "Disable DMA region"
endchoice