[PATCH v1 03/18] arm64: dts: imx8mq-evk: add reserve memory node for CMA region
From: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Date: 2021-02-17 08:07:26
Also in:
linux-arm-kernel, linux-media, linux-rockchip, lkml
Subsystem:
arm/freescale imx / mxc arm architecture, the rest · Maintainers:
Frank Li, Sascha Hauer, Linus Torvalds
Define allocation range for the default CMA region. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com> Signed-off-by: Ezequiel Garcia <redacted> Signed-off-by: Adrian Ratiu <redacted> --- arch/arm64/boot/dts/freescale/imx8mq-evk.dts | 15 +++++++++++++++ 1 file changed, 15 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
index 85b045253a0e..047dfd4a1ffd 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts@@ -21,6 +21,21 @@ memory@40000000 { reg = <0x00000000 0x40000000 0 0xc0000000>; }; + resmem: reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + /* global autoconfigured region for contiguous allocations */ + linux,cma { + compatible = "shared-dma-pool"; + reusable; + size = <0 0x3c000000>; + alloc-ranges = <0 0x40000000 0 0x40000000>; + linux,cma-default; + }; + }; + pcie0_refclk: pcie0-refclk { compatible = "fixed-clock"; #clock-cells = <0>;
--
2.25.1