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| author |   Yangtao Li <frank@allwinnertech.com> | 2020-11-10 14:28:02 +0800 |
|---|---|---|
| committer |   Vinod Koul <vkoul@kernel.org> | 2020-11-18 16:28:49 +0530 |
| commit | 07b552732edd1b09aecc0f57d479e5eccf11c295 (patch) | |
| tree | 0cc06b25b806c07895f9f06f6cb92a34f162a5c7 /drivers/dma/sun6i-dma.c | |
| parent | dt-bindings: dma: allwinner,sun50i-a64-dma: Add A100 compatible (diff) | |
| download | linux-dev-07b552732edd1b09aecc0f57d479e5eccf11c295.tar.xz linux-dev-07b552732edd1b09aecc0f57d479e5eccf11c295.zip | |
dmaengine: sun6i: Add support for A100 DMA
The dma of a100 is similar to h6, with some minor changes to
support greater addressing capabilities.
Add support for it.
Signed-off-by: Yangtao Li <frank@allwinnertech.com>
Link: https://lore.kernel.org/r/719852c6a9a597bd2e82d01a268ca02b9dee826c.1604988979.git.frank@allwinnertech.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/sun6i-dma.c')
| -rw-r--r-- | drivers/dma/sun6i-dma.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/dma/sun6i-dma.c b/drivers/dma/sun6i-dma.c index f5f9c86c50bc..5cadd4d2b824 100644 --- a/drivers/dma/sun6i-dma.c +++ b/drivers/dma/sun6i-dma.c @@ -1174,6 +1174,30 @@ static struct sun6i_dma_config sun50i_a64_dma_cfg = { }; /* + * TODO: Add support for more than 4g physical addressing. + * + * The A100 binding uses the number of dma channels from the + * device tree node. + */ +static struct sun6i_dma_config sun50i_a100_dma_cfg = { + .clock_autogate_enable = sun6i_enable_clock_autogate_h3, + .set_burst_length = sun6i_set_burst_length_h3, + .set_drq = sun6i_set_drq_h6, + .set_mode = sun6i_set_mode_h6, + .src_burst_lengths = BIT(1) | BIT(4) | BIT(8) | BIT(16), + .dst_burst_lengths = BIT(1) | BIT(4) | BIT(8) | BIT(16), + .src_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_1_BYTE) | + BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) | + BIT(DMA_SLAVE_BUSWIDTH_4_BYTES) | + BIT(DMA_SLAVE_BUSWIDTH_8_BYTES), + .dst_addr_widths = BIT(DMA_SLAVE_BUSWIDTH_1_BYTE) | + BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) | + BIT(DMA_SLAVE_BUSWIDTH_4_BYTES) | + BIT(DMA_SLAVE_BUSWIDTH_8_BYTES), + .has_mbus_clk = true, +}; + +/* * The H6 binding uses the number of dma channels from the * device tree node. */ @@ -1225,6 +1249,7 @@ static const struct of_device_id sun6i_dma_match[] = { { .compatible = "allwinner,sun8i-h3-dma", .data = &sun8i_h3_dma_cfg }, { .compatible = "allwinner,sun8i-v3s-dma", .data = &sun8i_v3s_dma_cfg }, { .compatible = "allwinner,sun50i-a64-dma", .data = &sun50i_a64_dma_cfg }, + { .compatible = "allwinner,sun50i-a100-dma", .data = &sun50i_a100_dma_cfg }, { .compatible = "allwinner,sun50i-h6-dma", .data = &sun50i_h6_dma_cfg }, { /* sentinel */ } }; |