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- From c06352c09ce55999d41036e593293a3aaf0cf70c Mon Sep 17 00:00:00 2001
- From: Samin Guo <[email protected]>
- Date: Wed, 17 Nov 2021 14:50:45 +0800
- Subject: [PATCH 1008/1024] dmaengine: dw-axi-dmac: Add StarFive JH7100 support
- Signed-off-by: Samin Guo <[email protected]>
- Signed-off-by: Emil Renner Berthing <[email protected]>
- ---
- drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c | 12 ++++++++++++
- drivers/dma/dw-axi-dmac/dw-axi-dmac.h | 4 ++++
- 2 files changed, 16 insertions(+)
- --- a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
- +++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
- @@ -677,8 +677,13 @@ static int dw_axi_dma_set_hw_desc(struct
-
- 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);
- @@ -1508,7 +1513,11 @@ static int dw_probe(struct platform_devi
- * 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);
- @@ -1593,6 +1602,9 @@ static const struct of_device_id dw_dma_
- .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),
- },
- --- a/drivers/dma/dw-axi-dmac/dw-axi-dmac.h
- +++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac.h
- @@ -283,7 +283,11 @@ 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
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