diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0416-ARM-dts-bcm2711-fix-soc-s-node-dma-ranges.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0416-ARM-dts-bcm2711-fix-soc-s-node-dma-ranges.patch | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0416-ARM-dts-bcm2711-fix-soc-s-node-dma-ranges.patch b/target/linux/bcm27xx/patches-5.4/950-0416-ARM-dts-bcm2711-fix-soc-s-node-dma-ranges.patch deleted file mode 100644 index ed0be9b9a3..0000000000 --- a/target/linux/bcm27xx/patches-5.4/950-0416-ARM-dts-bcm2711-fix-soc-s-node-dma-ranges.patch +++ /dev/null @@ -1,40 +0,0 @@ -From 44d7ee4730fbe3c00aba0457489acd0b6e2937c9 Mon Sep 17 00:00:00 2001 -From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> -Date: Wed, 4 Dec 2019 13:56:33 +0100 -Subject: [PATCH] ARM: dts: bcm2711: fix soc's node dma-ranges - -Raspberry Pi's firmware has a feature to select how much memory to -reserve for its GPU called 'gpu_mem'. The possible values go from 16MB -to 944MB, with a default of 64MB. This memory resides in the topmost -part of the lower 1GB memory area and grows bigger expanding towards the -begging of memory. - -It turns out that with low 'gpu_mem' values (16MB and 32MB) the size of -the memory available to the system in the lower 1GB area can outgrow the -interconnect's dma-range as its size was selected based on the maximum -system memory available given the default gpu_mem configuration. This -makes that memory slice unavailable for DMA. And may cause nasty kernel -warnings if CMA happens to include it. - -Change soc's dma-ranges to really reflect it's HW limitation, which is -being able to only DMA to the lower 1GB area. - -Fixes: 7dbe8c62ceeb ("ARM: dts: Add minimal Raspberry Pi 4 support") -Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> -Reviewed-by: Phil Elwell <phil@raspberrypi.org> -Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> ---- - arch/arm/boot/dts/bcm2711.dtsi | 2 +- - 1 file changed, 1 insertion(+), 1 deletion(-) - ---- a/arch/arm/boot/dts/bcm2711.dtsi -+++ b/arch/arm/boot/dts/bcm2711.dtsi -@@ -43,7 +43,7 @@ - <0x7c000000 0x0 0xfc000000 0x02000000>, - <0x40000000 0x0 0xff800000 0x00800000>; - /* Emulate a contiguous 30-bit address range for DMA */ -- dma-ranges = <0xc0000000 0x0 0x00000000 0x3c000000>; -+ dma-ranges = <0xc0000000 0x0 0x00000000 0x40000000>; - - /* - * This node is the provider for the enable-method for |