diff options
| author | Samin Guo <samin.guo@starfivetech.com> | 2021-11-17 09:50:45 +0300 |
|---|---|---|
| committer | Emil Renner Berthing <emil.renner.berthing@canonical.com> | 2024-04-13 23:33:34 +0300 |
| commit | b81064a1b5bfb87396318b5bef90d9e9c5ee52e1 (patch) | |
| tree | 25d71ea18c6b37eacbeecf48249ba863d965ed40 | |
| parent | c1dcd814fbf75861f50dbdc7f043091d739bfc92 (diff) | |
| download | linux-b81064a1b5bfb87396318b5bef90d9e9c5ee52e1.tar.xz | |
dmaengine: dw-axi-dmac: Add StarFive JH7100 support
Signed-off-by: Samin Guo <samin.guo@starfivetech.com>
Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
| -rw-r--r-- | drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c | 12 | ||||
| -rw-r--r-- | drivers/dma/dw-axi-dmac/dw-axi-dmac.h | 4 |
2 files changed, 16 insertions, 0 deletions
diff --git a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c index 05acc4780758..b3b3548fb230 100644 --- a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c +++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c @@ -722,8 +722,13 @@ static int dw_axi_dma_set_hw_desc(struct axi_dma_chan *chan, hw_desc->lli->block_ts_lo = cpu_to_le32(block_ts - 1); +#ifdef CONFIG_SOC_STARFIVE + ctllo |= DWAXIDMAC_BURST_TRANS_LEN_16 << CH_CTL_L_DST_MSIZE_POS | + DWAXIDMAC_BURST_TRANS_LEN_16 << CH_CTL_L_SRC_MSIZE_POS; +#else ctllo |= DWAXIDMAC_BURST_TRANS_LEN_4 << CH_CTL_L_DST_MSIZE_POS | DWAXIDMAC_BURST_TRANS_LEN_4 << CH_CTL_L_SRC_MSIZE_POS; +#endif hw_desc->lli->ctl_lo = cpu_to_le32(ctllo); set_desc_src_master(hw_desc); @@ -1578,7 +1583,11 @@ static int dw_probe(struct platform_device *pdev) * Therefore, set constraint to 1024 * 4. */ dw->dma.dev->dma_parms = &dw->dma_parms; +#ifdef CONFIG_SOC_STARFIVE + dma_set_max_seg_size(&pdev->dev, DMAC_MAX_BLK_SIZE); +#else dma_set_max_seg_size(&pdev->dev, MAX_BLOCK_SIZE); +#endif platform_set_drvdata(pdev, chip); pm_runtime_enable(chip->dev); @@ -1661,6 +1670,9 @@ static const struct of_device_id dw_dma_of_id_table[] = { .compatible = "intel,kmb-axi-dma", .data = (void *)AXI_DMA_FLAG_HAS_APB_REGS, }, { + .compatible = "starfive,jh7100-axi-dma", + .data = (void *)(AXI_DMA_FLAG_HAS_RESETS | AXI_DMA_FLAG_USE_CFG2), + }, { .compatible = "starfive,jh7110-axi-dma", .data = (void *)(AXI_DMA_FLAG_HAS_RESETS | AXI_DMA_FLAG_USE_CFG2), }, diff --git a/drivers/dma/dw-axi-dmac/dw-axi-dmac.h b/drivers/dma/dw-axi-dmac/dw-axi-dmac.h index 1da80677cb87..8d1f214fcddc 100644 --- a/drivers/dma/dw-axi-dmac/dw-axi-dmac.h +++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac.h @@ -287,7 +287,11 @@ enum { #define CH_CTL_L_SRC_MAST BIT(0) /* CH_CFG_H */ +#ifdef CONFIG_SOC_STARFIVE +#define CH_CFG_H_PRIORITY_POS 15 +#else #define CH_CFG_H_PRIORITY_POS 17 +#endif #define CH_CFG_H_DST_PER_POS 12 #define CH_CFG_H_SRC_PER_POS 7 #define CH_CFG_H_HS_SEL_DST_POS 4 |