From 87c5545f9a66984894384da5f8c2eeb60983732a Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Wed, 8 Mar 2023 16:53:38 +0000 Subject: [PATCH] dmaengine: bcm2835: Add BCM2712 support 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 --- drivers/dma/bcm2835-dma.c | 7 +++++++ 1 file changed, 7 insertions(+) --- a/drivers/dma/bcm2835-dma.c +++ b/drivers/dma/bcm2835-dma.c @@ -331,6 +331,12 @@ static const struct bcm2835_dma_cfg_data .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 */ @@ -1260,6 +1266,7 @@ 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);