From b4778e787fe9e82dcbff8150ebfbe6fea0b6c4e1 Mon Sep 17 00:00:00 2001 From: Suman Anna Date: Thu, 9 Jul 2020 18:19:47 -0500 Subject: [PATCH] ARM: dts: omap4-panda-common: Add CMA pools and enable IPU & DSP The CMA reserved memory nodes have been added for the IPU and DSP remoteproc devices on all the OMAP4-based Panda boards. These nodes are assigned to the respective rproc device nodes, and both the IPU and DSP remote processors are enabled for all these boards. The current CMA pools and sizes are defined statically for each device. The starting addresses are fixed to meet current dependencies on the remote processor firmwares, and will go away when the remote-side code has been improved to gather this information runtime during its initialization. An associated pair of the rproc node and its CMA node can be disabled later on if there is no use-case defined to use that remote processor. Signed-off-by: Suman Anna Signed-off-by: Tony Lindgren --- arch/arm/boot/dts/omap4-panda-common.dtsi | 30 +++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/arch/arm/boot/dts/omap4-panda-common.dtsi b/arch/arm/boot/dts/omap4-panda-common.dtsi index 55ea8b6189af5..ef79028fc95fb 100644 --- a/arch/arm/boot/dts/omap4-panda-common.dtsi +++ b/arch/arm/boot/dts/omap4-panda-common.dtsi @@ -12,6 +12,26 @@ reg = <0x80000000 0x40000000>; /* 1 GB */ }; + reserved-memory { + #address-cells = <1>; + #size-cells = <1>; + ranges; + + dsp_memory_region: dsp-memory@98000000 { + compatible = "shared-dma-pool"; + reg = <0x98000000 0x800000>; + reusable; + status = "okay"; + }; + + ipu_memory_region: ipu-memory@98800000 { + compatible = "shared-dma-pool"; + reg = <0x98800000 0x7000000>; + reusable; + status = "okay"; + }; + }; + chosen { stdout-path = &uart3; }; @@ -571,3 +591,13 @@ }; }; }; + +&dsp { + status = "okay"; + memory-region = <&dsp_memory_region>; +}; + +&ipu { + status = "okay"; + memory-region = <&ipu_memory_region>; +}; -- 2.30.2