diff options
| author | Peng Ma <peng.ma@nxp.com> | 2019-05-22 06:21:02 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2019-06-04 15:05:02 +0300 |
| commit | 8f95adcf3a5aabb7a416d3c03c561acd580df213 (patch) | |
| tree | 3ce60959f61046fb707aaaada09ab8b53f4b6cbd /drivers/dma/fsl-qdma.c | |
| parent | 5b969bd1d9cdfc8200f3dccf07a0270eaa2f2bbd (diff) | |
| download | linux-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.c | 18 |
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); } /* |