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Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0923-ARM-dts-2711-DMA-can-address-36-bits.patch')
-rw-r--r--target/linux/bcm27xx/patches-5.4/950-0923-ARM-dts-2711-DMA-can-address-36-bits.patch25
1 files changed, 25 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0923-ARM-dts-2711-DMA-can-address-36-bits.patch b/target/linux/bcm27xx/patches-5.4/950-0923-ARM-dts-2711-DMA-can-address-36-bits.patch
new file mode 100644
index 0000000000..a77737986e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0923-ARM-dts-2711-DMA-can-address-36-bits.patch
@@ -0,0 +1,25 @@
+From df3f3eba7e6f19694369ea52360c0d5d18d310c3 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Wed, 22 Jul 2020 17:45:24 +0100
+Subject: [PATCH] ARM: dts: 2711 DMA can address 36 bits
+
+Kernels prior to 5.7 only see the first entry in dma-ranges, so make
+it cover the full addressable range.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ arch/arm/boot/dts/bcm2711-rpi.dtsi | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/bcm2711-rpi.dtsi
++++ b/arch/arm/boot/dts/bcm2711-rpi.dtsi
+@@ -193,8 +193,7 @@
+ <0x0 0x40000000 0x0 0xff800000 0x0 0x00800000>,
+ <0x6 0x00000000 0x6 0x00000000 0x0 0x40000000>,
+ <0x0 0x00000000 0x0 0x00000000 0x0 0xfc000000>;
+- dma-ranges = <0x0 0x00000000 0x0 0x00000000 0x0 0xfc000000>,
+- <0x1 0x00000000 0x1 0x00000000 0x1 0x00000000>;
++ dma-ranges = <0x0 0x00000000 0x0 0x00000000 0x4 0x00000000>;
+
+ dma40: dma@7e007b00 {
+ compatible = "brcm,bcm2711-dma";