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dmaengine: bcm2835: Add BCM2712 support

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BCM2712 has 6 40-bit channels - DMA6 to DMA11. Add a new compatible
string to indicate that the current platform is BCM2712.

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
This commit is contained in:
Phil Elwell
2023-03-08 16:53:38 +00:00
committed by Dom Cobley
parent 8d811c70a4
commit e1ef110f2b
1 changed files with 7 additions and 0 deletions
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7
drivers/dma/bcm2835-dma.c
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@@ -330,6 +330,12 @@ static const struct bcm2835_dma_cfg_data bcm2711_dma_cfg = {
.dma_mask = DMA_BIT_MASK(36),
};
static const struct bcm2835_dma_cfg_data bcm2712_dma_cfg = {
.chan_40bit_mask = BIT(6) | BIT(7) | BIT(8) | BIT(9) |
BIT(10) | BIT(11),
.dma_mask = DMA_BIT_MASK(40),
};
static inline size_t bcm2835_dma_max_frame_length(struct bcm2835_chan *c)
{
/* lite and normal channels have different max frame length */
@@ -1214,6 +1220,7 @@ static void bcm2835_dma_free(struct bcm2835_dmadev *od)
static const struct of_device_id bcm2835_dma_of_match[] = {
{ .compatible = "brcm,bcm2835-dma", .data = &bcm2835_dma_cfg },
{ .compatible = "brcm,bcm2711-dma", .data = &bcm2711_dma_cfg },
{ .compatible = "brcm,bcm2712-dma", .data = &bcm2712_dma_cfg },
{},
};
MODULE_DEVICE_TABLE(of, bcm2835_dma_of_match);