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authorPeng Ma <peng.ma@nxp.com>2019-05-22 06:21:02 +0300
committerVinod Koul <vkoul@kernel.org>2019-06-04 15:05:02 +0300
commit8f95adcf3a5aabb7a416d3c03c561acd580df213 (patch)
tree3ce60959f61046fb707aaaada09ab8b53f4b6cbd /drivers/dma/fsl-qdma.c
parent5b969bd1d9cdfc8200f3dccf07a0270eaa2f2bbd (diff)
downloadlinux-8f95adcf3a5aabb7a416d3c03c561acd580df213.tar.xz
dmaengine: fsl-qdma: fixed the source/destination descriptor format
CMD of Source/Destination descriptor format should be lower of struct fsl_qdma_engine number data address. Signed-off-by: Peng Ma <peng.ma@nxp.com> Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/fsl-qdma.c')
-rw-r--r--drivers/dma/fsl-qdma.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/drivers/dma/fsl-qdma.c b/drivers/dma/fsl-qdma.c
index aa1d0ae3d207..da8fdf5dca74 100644
--- a/drivers/dma/fsl-qdma.c
+++ b/drivers/dma/fsl-qdma.c
@@ -113,6 +113,7 @@
/* Field definition for Descriptor offset */
#define QDMA_CCDF_STATUS 20
#define QDMA_CCDF_OFFSET 20
+#define QDMA_SDDF_CMD(x) (((u64)(x)) << 32)
/* Field definition for safe loop count*/
#define FSL_QDMA_HALT_COUNT 1500
@@ -341,6 +342,7 @@ static void fsl_qdma_free_chan_resources(struct dma_chan *chan)
static void fsl_qdma_comp_fill_memcpy(struct fsl_qdma_comp *fsl_comp,
dma_addr_t dst, dma_addr_t src, u32 len)
{
+ u32 cmd;
struct fsl_qdma_format *sdf, *ddf;
struct fsl_qdma_format *ccdf, *csgf_desc, *csgf_src, *csgf_dest;
@@ -369,14 +371,14 @@ static void fsl_qdma_comp_fill_memcpy(struct fsl_qdma_comp *fsl_comp,
/* This entry is the last entry. */
qdma_csgf_set_f(csgf_dest, len);
/* Descriptor Buffer */
- sdf->data =
- cpu_to_le64(FSL_QDMA_CMD_RWTTYPE <<
- FSL_QDMA_CMD_RWTTYPE_OFFSET);
- ddf->data =
- cpu_to_le64(FSL_QDMA_CMD_RWTTYPE <<
- FSL_QDMA_CMD_RWTTYPE_OFFSET);
- ddf->data |=
- cpu_to_le64(FSL_QDMA_CMD_LWC << FSL_QDMA_CMD_LWC_OFFSET);
+ cmd = cpu_to_le32(FSL_QDMA_CMD_RWTTYPE <<
+ FSL_QDMA_CMD_RWTTYPE_OFFSET);
+ sdf->data = QDMA_SDDF_CMD(cmd);
+
+ cmd = cpu_to_le32(FSL_QDMA_CMD_RWTTYPE <<
+ FSL_QDMA_CMD_RWTTYPE_OFFSET);
+ cmd |= cpu_to_le32(FSL_QDMA_CMD_LWC << FSL_QDMA_CMD_LWC_OFFSET);
+ ddf->data = QDMA_SDDF_CMD(cmd);
}
/*