diff options
| author | Álvaro Fernández Rojas <noltari@gmail.com> | 2021-02-18 18:04:33 +0100 |
|---|---|---|
| committer | Álvaro Fernández Rojas <noltari@gmail.com> | 2021-02-18 23:42:32 +0100 |
| commit | f07e572f6447465d8938679533d604e402b0f066 (patch) | |
| tree | cb333bd2a67e59e7c07659514850a0fd55fc825e /target/linux/bcm27xx/patches-5.4/950-0985-ARM-bcm2711-rpi.dts-Unlock-DMA-channels-9-10.patch | |
| parent | 5d3a6fd970619dfc55f8259035c3027d7613a2a6 (diff) | |
| download | upstream-f07e572f6447465d8938679533d604e402b0f066.tar.gz upstream-f07e572f6447465d8938679533d604e402b0f066.tar.bz2 upstream-f07e572f6447465d8938679533d604e402b0f066.zip | |
bcm27xx: import latest patches from the RPi foundation
bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0985-ARM-bcm2711-rpi.dts-Unlock-DMA-channels-9-10.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0985-ARM-bcm2711-rpi.dts-Unlock-DMA-channels-9-10.patch | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0985-ARM-bcm2711-rpi.dts-Unlock-DMA-channels-9-10.patch b/target/linux/bcm27xx/patches-5.4/950-0985-ARM-bcm2711-rpi.dts-Unlock-DMA-channels-9-10.patch new file mode 100644 index 0000000000..8895a020b2 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0985-ARM-bcm2711-rpi.dts-Unlock-DMA-channels-9-10.patch @@ -0,0 +1,33 @@ +From b10a49ab016ed9ac8f231845fb3e83fbf3505652 Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.com> +Date: Mon, 12 Oct 2020 14:36:35 +0100 +Subject: [PATCH] ARM: bcm2711-rpi.dts: Unlock DMA channels 9 & 10 + +The downstream-specific override of the 32-bit DMA mask needlessly +disables channels 9 and 10 - the VPU doesn't use them. This override +is redundant, so delete it. + +See: https://github.com/raspberrypi/linux/issues/3896 + +Signed-off-by: Phil Elwell <phil@raspberrypi.com> +--- + arch/arm/boot/dts/bcm2711-rpi.dtsi | 7 +------ + 1 file changed, 1 insertion(+), 6 deletions(-) + +--- a/arch/arm/boot/dts/bcm2711-rpi.dtsi ++++ b/arch/arm/boot/dts/bcm2711-rpi.dtsi +@@ -246,13 +246,8 @@ + }; + }; + +-&dma { +- /* The VPU firmware uses DMA channel 11 for VCHIQ */ +- brcm,dma-channel-mask = <0x1f5>; +-}; +- + &dma40 { +- /* The VPU firmware DMA channel 11 for VCHIQ */ ++ /* The VPU firmware uses DMA channel 11 for VCHIQ */ + brcm,dma-channel-mask = <0x7000>; + }; + |