diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0414-ARM-dts-bcm2711-force-CMA-into-first-GB-of-memory.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0414-ARM-dts-bcm2711-force-CMA-into-first-GB-of-memory.patch | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0414-ARM-dts-bcm2711-force-CMA-into-first-GB-of-memory.patch b/target/linux/bcm27xx/patches-5.4/950-0414-ARM-dts-bcm2711-force-CMA-into-first-GB-of-memory.patch deleted file mode 100644 index 44f60d610f..0000000000 --- a/target/linux/bcm27xx/patches-5.4/950-0414-ARM-dts-bcm2711-force-CMA-into-first-GB-of-memory.patch +++ /dev/null @@ -1,45 +0,0 @@ -From 4bcb99a967998d255ef009bb0b6880ae99c6f6bf Mon Sep 17 00:00:00 2001 -From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> -Date: Wed, 6 Nov 2019 10:59:44 +0100 -Subject: [PATCH] ARM: dts: bcm2711: force CMA into first GB of memory - -arm64 places the CMA in ZONE_DMA32, which is not good enough for the -Raspberry Pi 4 since it contains peripherals that can only address the -first GB of memory. Explicitly place the CMA into that area. - -Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> -Acked-by: Stefan Wahren <wahrenst@gmx.net> -Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> ---- - arch/arm/boot/dts/bcm2711.dtsi | 20 ++++++++++++++++++++ - 1 file changed, 20 insertions(+) - ---- a/arch/arm/boot/dts/bcm2711.dtsi -+++ b/arch/arm/boot/dts/bcm2711.dtsi -@@ -12,6 +12,26 @@ - - interrupt-parent = <&gicv2>; - -+ reserved-memory { -+ #address-cells = <2>; -+ #size-cells = <1>; -+ ranges; -+ -+ /* -+ * arm64 reserves the CMA by default somewhere in ZONE_DMA32, -+ * that's not good enough for the BCM2711 as some devices can -+ * only address the lower 1G of memory (ZONE_DMA). -+ */ -+ linux,cma { -+ compatible = "shared-dma-pool"; -+ size = <0x2000000>; /* 32MB */ -+ alloc-ranges = <0x0 0x00000000 0x40000000>; -+ reusable; -+ linux,cma-default; -+ }; -+ }; -+ -+ - soc { - /* - * Defined ranges: |