[PATCH v1 2/3] arm64: dts: renesas: r8a77951: Add CR7 realtime processor
From: Julien Massot <hidden>
Date: 2021-11-15 13:51:48
Also in:
linux-remoteproc, linux-renesas-soc
Subsystem:
arm/risc-v/renesas architecture, the rest · Maintainers:
Geert Uytterhoeven, Magnus Damm, Linus Torvalds
r8a77951 as some other members of rcar gen3 soc series has a Cortex R7 processor. This processor shares the same mapped devices and memory mapping. Choose 0x40040000 area to store the Cortex-R7 firmware. Signed-off-by: Julien Massot <redacted> --- No change since RFC, Geert most likely it sounds better to drop this patch in v2 ? --- arch/arm64/boot/dts/renesas/r8a77951-ulcb.dts | 15 +++++++++++++++ arch/arm64/boot/dts/renesas/r8a77951.dtsi | 7 +++++++ 2 files changed, 22 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/r8a77951-ulcb.dts b/arch/arm64/boot/dts/renesas/r8a77951-ulcb.dts
index 06d4e948eb0f..703d0d33efe6 100644
--- a/arch/arm64/boot/dts/renesas/r8a77951-ulcb.dts
+++ b/arch/arm64/boot/dts/renesas/r8a77951-ulcb.dts@@ -34,6 +34,16 @@ memory@700000000 { device_type = "memory"; reg = <0x7 0x00000000 0x0 0x40000000>; }; + + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + + cr7_ram: cr7_ram@40040000 { + no-map; + reg = <0x0 0x40040000 0x0 0x1fc0000>; + }; + }; }; &du {
@@ -48,3 +58,8 @@ &du { clock-names = "du.0", "du.1", "du.2", "du.3", "dclkin.0", "dclkin.1", "dclkin.2", "dclkin.3"; }; + +&cr7_rproc { + memory-region = <&cr7_ram>; + status = "okay"; +};
diff --git a/arch/arm64/boot/dts/renesas/r8a77951.dtsi b/arch/arm64/boot/dts/renesas/r8a77951.dtsi
index 1768a3e6bb8d..3ee247fc5aec 100644
--- a/arch/arm64/boot/dts/renesas/r8a77951.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77951.dtsi@@ -366,6 +366,13 @@ soc: soc { #size-cells = <2>; ranges; + cr7_rproc: cr7 { + compatible = "renesas,rcar-cr7"; + power-domains = <&sysc R8A7795_PD_CR7>; + resets = <&cpg 222>; + status = "disabled"; + }; + rwdt: watchdog@e6020000 { compatible = "renesas,r8a7795-wdt", "renesas,rcar-gen3-wdt"; reg = <0 0xe6020000 0 0x0c>;
--
2.31.1