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34 lines
963 B
Diff
34 lines
963 B
Diff
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From b10a49ab016ed9ac8f231845fb3e83fbf3505652 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.com>
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Date: Mon, 12 Oct 2020 14:36:35 +0100
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Subject: [PATCH] ARM: bcm2711-rpi.dts: Unlock DMA channels 9 & 10
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The downstream-specific override of the 32-bit DMA mask needlessly
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disables channels 9 and 10 - the VPU doesn't use them. This override
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is redundant, so delete it.
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See: https://github.com/raspberrypi/linux/issues/3896
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Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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---
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arch/arm/boot/dts/bcm2711-rpi.dtsi | 7 +------
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1 file changed, 1 insertion(+), 6 deletions(-)
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--- a/arch/arm/boot/dts/bcm2711-rpi.dtsi
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+++ b/arch/arm/boot/dts/bcm2711-rpi.dtsi
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@@ -246,13 +246,8 @@
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};
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};
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-&dma {
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- /* The VPU firmware uses DMA channel 11 for VCHIQ */
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- brcm,dma-channel-mask = <0x1f5>;
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-};
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-
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&dma40 {
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- /* The VPU firmware DMA channel 11 for VCHIQ */
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+ /* The VPU firmware uses DMA channel 11 for VCHIQ */
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brcm,dma-channel-mask = <0x7000>;
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};
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