Initial commit

target/linux/bcm27xx/patches-6.6/950-0561-dmaengine-bcm2835-Add-BCM2712-support.patch

@@ -0,0 +1,36 @@
+From 7ac3e6fc0591b59b4cc442d065c76841db2c39ca Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Wed, 8 Mar 2023 16:53:38 +0000
+Subject: [PATCH 0561/1085] 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 <phil@raspberrypi.com>
+---
+ 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);