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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>
alistair/sunxi64-5.4-dsi
Peng Ma 2019-05-22 03:21:02 +00:00 committed by Vinod Koul
parent 5b969bd1d9
commit 8f95adcf3a
1 changed files with 10 additions and 8 deletions
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18
drivers/dma/fsl-qdma.c
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@ -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);
}
/*