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| author | Rameshwar Prasad Sahu <rsahu@apm.com> | 2015-07-07 15:34:25 +0530 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2015-07-31 20:33:43 +0530 |
| commit | cda8e937191c100025168ba3e22ab316c7298007 (patch) | |
| tree | cb57fc42ca1598712497ef8e5ac780ce15629356 | |
| parent | 1c8a38b1268aebc1a903b21b11575077e02d2cf7 (diff) | |
| download | linux-cda8e937191c100025168ba3e22ab316c7298007.tar.gz linux-cda8e937191c100025168ba3e22ab316c7298007.tar.bz2 linux-cda8e937191c100025168ba3e22ab316c7298007.zip | |
dmaengine: xgene-dma: Fix the resource map to handle overlapping
There is an overlap in dma ring cmd csr region due to sharing of ethernet
ring cmd csr region. This patch fix the resource overlapping by mapping
the entire dma ring cmd csr region.
Signed-off-by: Rameshwar Prasad Sahu <rsahu@apm.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
| -rw-r--r-- | Documentation/devicetree/bindings/dma/apm-xgene-dma.txt | 2 | ||||
| -rw-r--r-- | arch/arm64/boot/dts/apm/apm-storm.dtsi | 2 | ||||
| -rw-r--r-- | drivers/dma/xgene-dma.c | 3 |
3 files changed, 5 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/dma/apm-xgene-dma.txt b/Documentation/devicetree/bindings/dma/apm-xgene-dma.txt index d3058768b23d..c53e0b08032f 100644 --- a/Documentation/devicetree/bindings/dma/apm-xgene-dma.txt +++ b/Documentation/devicetree/bindings/dma/apm-xgene-dma.txt @@ -35,7 +35,7 @@ Example: device_type = "dma"; reg = <0x0 0x1f270000 0x0 0x10000>, <0x0 0x1f200000 0x0 0x10000>, - <0x0 0x1b008000 0x0 0x2000>, + <0x0 0x1b000000 0x0 0x400000>, <0x0 0x1054a000 0x0 0x100>; interrupts = <0x0 0x82 0x4>, <0x0 0xb8 0x4>, diff --git a/arch/arm64/boot/dts/apm/apm-storm.dtsi b/arch/arm64/boot/dts/apm/apm-storm.dtsi index 0689c3fb56e3..58093edeea2e 100644 --- a/arch/arm64/boot/dts/apm/apm-storm.dtsi +++ b/arch/arm64/boot/dts/apm/apm-storm.dtsi @@ -823,7 +823,7 @@ device_type = "dma"; reg = <0x0 0x1f270000 0x0 0x10000>, <0x0 0x1f200000 0x0 0x10000>, - <0x0 0x1b008000 0x0 0x2000>, + <0x0 0x1b000000 0x0 0x400000>, <0x0 0x1054a000 0x0 0x100>; interrupts = <0x0 0x82 0x4>, <0x0 0xb8 0x4>, diff --git a/drivers/dma/xgene-dma.c b/drivers/dma/xgene-dma.c index 620fd55ec766..dff22ab01851 100644 --- a/drivers/dma/xgene-dma.c +++ b/drivers/dma/xgene-dma.c @@ -111,6 +111,7 @@ #define XGENE_DMA_MEM_RAM_SHUTDOWN 0xD070 #define XGENE_DMA_BLK_MEM_RDY 0xD074 #define XGENE_DMA_BLK_MEM_RDY_VAL 0xFFFFFFFF +#define XGENE_DMA_RING_CMD_SM_OFFSET 0x8000 /* X-Gene SoC EFUSE csr register and bit defination */ #define XGENE_SOC_JTAG1_SHADOW 0x18 @@ -1887,6 +1888,8 @@ static int xgene_dma_get_resources(struct platform_device *pdev, return -ENOMEM; } + pdma->csr_ring_cmd += XGENE_DMA_RING_CMD_SM_OFFSET; + /* Get efuse csr region */ res = platform_get_resource(pdev, IORESOURCE_MEM, 3); if (!res) { |