From: Phil Elwell <phil@xxxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxxx>
---
drivers/dma/bcm2835-dma.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/dma/bcm2835-dma.c b/drivers/dma/bcm2835-dma.c
index 1b3f470274b2..548cf7343d83 100644
--- a/drivers/dma/bcm2835-dma.c
+++ b/drivers/dma/bcm2835-dma.c
@@ -326,6 +326,12 @@ 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 */
@@ -1250,6 +1256,7 @@ EXPORT_SYMBOL(bcm2711_dma40_memcpy);
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);
--
2.41.0
