Commit 20a90b0e authored by Qiao Zhou's avatar Qiao Zhou Committed by Vinod Koul
Browse files

dma: mmp_tdma: add multiple burst size support for 910-squ 



add multiple burst size support for 910-squ.

Signed-off-by: default avatarQiao Zhou <zhouqiao@marvell.com>
Acked-by: default avatarZhangfei Gao <zhangfei.gao@gmail.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent 174b537a

drivers/dma/mmp_tdma.c

+29 −1
Original line number Diff line number Diff line
@@ -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);