diff options
| author |   Qiao Zhou <zhouqiao@marvell.com> | 2013-10-11 09:07:01 +0800 |
|---|---|---|
| committer |   Vinod Koul <vinod.koul@intel.com> | 2013-10-13 20:32:18 +0530 |
| commit | 20a90b0ebca434421c30de5ca6b1979ca02e52bf (patch) | |
| tree | ace57803f241315da7fb019a4ba7e1b6abdbf0dc /drivers/dma/mmp_tdma.c | |
| parent | dma: misc: remove deprecated IRQF_DISABLED (diff) | |
| download | linux-dev-20a90b0ebca434421c30de5ca6b1979ca02e52bf.tar.xz linux-dev-20a90b0ebca434421c30de5ca6b1979ca02e52bf.zip | |
dma: mmp_tdma: add multiple burst size support for 910-squ
add multiple burst size support for 910-squ.
Signed-off-by: Qiao Zhou <zhouqiao@marvell.com>
Acked-by: Zhangfei Gao <zhangfei.gao@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/mmp_tdma.c')
| -rw-r--r-- | drivers/dma/mmp_tdma.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c index ea5c3d26dd35..8f3e865053d4 100644 --- a/drivers/dma/mmp_tdma.c +++ b/drivers/dma/mmp_tdma.c @@ -62,6 +62,11 @@ #define TDCR_BURSTSZ_16B (0x3 << 6) #define TDCR_BURSTSZ_32B (0x6 << 6) #define TDCR_BURSTSZ_64B (0x7 << 6) +#define TDCR_BURSTSZ_SQU_1B (0x5 << 6) +#define TDCR_BURSTSZ_SQU_2B (0x6 << 6) +#define TDCR_BURSTSZ_SQU_4B (0x0 << 6) +#define TDCR_BURSTSZ_SQU_8B (0x1 << 6) +#define TDCR_BURSTSZ_SQU_16B (0x3 << 6) #define TDCR_BURSTSZ_SQU_32B (0x7 << 6) #define TDCR_BURSTSZ_128B (0x5 << 6) #define TDCR_DSTDIR_MSK (0x3 << 4) /* Dst Direction */ @@ -228,8 +233,31 @@ static int mmp_tdma_config_chan(struct mmp_tdma_chan *tdmac) return -EINVAL; } } else if (tdmac->type == PXA910_SQU) { - tdcr |= TDCR_BURSTSZ_SQU_32B; tdcr |= TDCR_SSPMOD; + + switch (tdmac->burst_sz) { + case 1: + tdcr |= TDCR_BURSTSZ_SQU_1B; + break; + case 2: + tdcr |= TDCR_BURSTSZ_SQU_2B; + break; + case 4: + tdcr |= TDCR_BURSTSZ_SQU_4B; + break; + case 8: + tdcr |= TDCR_BURSTSZ_SQU_8B; + break; + case 16: + tdcr |= TDCR_BURSTSZ_SQU_16B; + break; + case 32: + tdcr |= TDCR_BURSTSZ_SQU_32B; + break; + default: + dev_err(tdmac->dev, "mmp_tdma: unknown burst size.\n"); + return -EINVAL; + } } writel(tdcr, tdmac->reg_base + TDCR); |