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authorThomas Breitung <thomas.breitung@izt-labs.de>2017-06-19 16:40:04 +0200
committerVinod Koul <vinod.koul@intel.com>2017-06-22 18:31:35 +0530
commitccc077292733f3143b444255fa5ec49a8ff2763b (patch)
treef867c7838c806b891adcb7e3c955d5e8bbe74817 /drivers/dma/fsldma.h
parent036e9ef8becde736e693be4f4bef56d5b56fc298 (diff)
downloadlwn-ccc077292733f3143b444255fa5ec49a8ff2763b.tar.gz
lwn-ccc077292733f3143b444255fa5ec49a8ff2763b.zip
dmaengine: fsldma: set BWC, DAHTS and SAHTS values correctly
The bits of BWC, DAHTS and SAHTS in the DMA mode register must be cleared before a new value can be or-ed in. Signed-off-by: Thomas Breitung <thomas.breitung@izt-labs.de> Signed-off-by: Wolfgang Ocker <weo@reccoware.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/fsldma.h')
-rw-r--r--drivers/dma/fsldma.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/dma/fsldma.h b/drivers/dma/fsldma.h
index 31bffccdcc75..4787d485dd76 100644
--- a/drivers/dma/fsldma.h
+++ b/drivers/dma/fsldma.h
@@ -36,6 +36,10 @@
#define FSL_DMA_MR_DAHE 0x00002000
#define FSL_DMA_MR_SAHE 0x00001000
+#define FSL_DMA_MR_SAHTS_MASK 0x0000C000
+#define FSL_DMA_MR_DAHTS_MASK 0x00030000
+#define FSL_DMA_MR_BWC_MASK 0x0f000000
+
/*
* Bandwidth/pause control determines how many bytes a given
* channel is allowed to transfer before the DMA engine pauses