From 1eba0b61be72506549e79dd11a132b5d73aed094 Mon Sep 17 00:00:00 2001 From: Inochi Amaoto Date: Thu, 11 Apr 2024 08:45:00 +0800 Subject: riscv: dts: sophgo: add reserved memory node for CV1800B The original dts of CV1800B has a weird memory length as it contains reserved memory for coprocessor. Make this area a separate node so it can get the real memory length. Link: https://lore.kernel.org/r/IA1PR20MB49531F274753B04A5547DB59BB052@IA1PR20MB4953.namprd20.prod.outlook.com Signed-off-by: Inochi Amaoto Signed-off-by: Chen Wang --- arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts | 12 +++++++++--- arch/riscv/boot/dts/sophgo/cv1800b.dtsi | 5 +++++ 2 files changed, 14 insertions(+), 3 deletions(-) (limited to 'arch/riscv/boot') diff --git a/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts b/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts index 94e64ddce8fa..cd013588adc0 100644 --- a/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts +++ b/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts @@ -23,9 +23,15 @@ stdout-path = "serial0:115200n8"; }; - memory@80000000 { - device_type = "memory"; - reg = <0x80000000 0x3f40000>; + reserved-memory { + #address-cells = <1>; + #size-cells = <1>; + ranges; + + coprocessor_rtos: region@83f40000 { + reg = <0x83f40000 0xc0000>; + no-map; + }; }; }; diff --git a/arch/riscv/boot/dts/sophgo/cv1800b.dtsi b/arch/riscv/boot/dts/sophgo/cv1800b.dtsi index baf641829e72..ec9530972ae2 100644 --- a/arch/riscv/boot/dts/sophgo/cv1800b.dtsi +++ b/arch/riscv/boot/dts/sophgo/cv1800b.dtsi @@ -7,6 +7,11 @@ / { compatible = "sophgo,cv1800b"; + + memory@80000000 { + device_type = "memory"; + reg = <0x80000000 0x4000000>; + }; }; &plic { -- cgit v1.2.3