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[09/12] dmaengine: bcm2835: Add BCM2712 support

Message ID eb48d7f35252c7a2ddeda54fb326210c4bef8f18.1706948717.git.andrea.porta@suse.com (mailing list archive)
State New, archived
Headers show
Series Add support for BCM2712 DMA engine | expand

Commit Message

Andrea della Porta Feb. 4, 2024, 6:59 a.m. UTC 
From: Phil Elwell <phil@raspberrypi.com>

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>
---
 drivers/dma/bcm2835-dma.c | 7 +++++++
 1 file changed, 7 insertions(+)
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Patch

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);