linux-kernel - [PATCH 1/3] arm64: dts: meson-axg: add VPU and PWRC nodes

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Message-Id: <20200907083300.14412-2-narmstrong@baylibre.com>
Date:   Mon,  7 Sep 2020 10:32:58 +0200
From:   Neil Armstrong <narmstrong@...libre.com>
To:     khilman@...libre.com
Cc:     linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Neil Armstrong <narmstrong@...libre.com>
Subject: [PATCH 1/3] arm64: dts: meson-axg: add VPU and PWRC nodes

This add the display VPU node and the power controller PWRC node.

Signed-off-by: Neil Armstrong <narmstrong@...libre.com>
---
 arch/arm64/boot/dts/amlogic/meson-axg.dtsi | 58 ++++++++++++++++++++++
 1 file changed, 58 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
index b9efc8469265..4a93e3fecd90 100644
--- a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
@@ -12,6 +12,7 @@
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/reset/amlogic,meson-axg-audio-arb.h>
 #include <dt-bindings/reset/amlogic,meson-axg-reset.h>
+#include <dt-bindings/power/meson-axg-power.h>
 
 / {
 	compatible = "amlogic,meson-axg";
@@ -187,6 +188,7 @@
 				      "timing-adjustment";
 			rx-fifo-depth = <4096>;
 			tx-fifo-depth = <2048>;
+			power-domains = <&pwrc PWRC_AXG_ETHERNET_MEM_ID>;
 			status = "disabled";
 		};
 
@@ -1117,6 +1119,46 @@
 					clocks = <&xtal>;
 					clock-names = "xtal";
 				};
+
+				pwrc: power-controller {
+					compatible = "amlogic,meson-axg-pwrc";
+					#power-domain-cells = <1>;
+					amlogic,ao-sysctrl = <&sysctrl_AO>;
+					resets = <&reset RESET_VIU>,
+						 <&reset RESET_VENC>,
+						 <&reset RESET_VCBUS>,
+						 <&reset RESET_VENCL>,
+						 <&reset RESET_VID_LOCK>;
+					reset-names = "viu", "venc", "vcbus",
+						      "vencl", "vid_lock";
+					clocks = <&clkc CLKID_VPU>,
+						 <&clkc CLKID_VAPB>;
+					clock-names = "vpu", "vapb";
+					/*
+					 * VPU clocking is provided by two identical clock paths
+					 * VPU_0 and VPU_1 muxed to a single clock by a glitch
+					 * free mux to safely change frequency while running.
+					 * Same for VAPB but with a final gate after the glitch free mux.
+					 */
+					assigned-clocks = <&clkc CLKID_VPU_0_SEL>,
+							  <&clkc CLKID_VPU_0>,
+							  <&clkc CLKID_VPU>, /* Glitch free mux */
+							  <&clkc CLKID_VAPB_0_SEL>,
+							  <&clkc CLKID_VAPB_0>,
+							  <&clkc CLKID_VAPB_SEL>; /* Glitch free mux */
+					assigned-clock-parents = <&clkc CLKID_FCLK_DIV4>,
+								 <0>, /* Do Nothing */
+								 <&clkc CLKID_VPU_0>,
+								 <&clkc CLKID_FCLK_DIV4>,
+								 <0>, /* Do Nothing */
+								 <&clkc CLKID_VAPB_0>;
+					assigned-clock-rates = <0>, /* Do Nothing */
+							       <250000000>,
+							       <0>, /* Do Nothing */
+							       <0>, /* Do Nothing */
+							       <250000000>,
+							       <0>; /* Do Nothing */
+				};
 			};
 		};
 
@@ -1563,6 +1605,22 @@
 			};
 		};
 
+		vpu: vpu@...00000 {
+			compatible = "amlogic,meson-axg-vpu";
+			reg = <0x0 0xff900000 0x0 0x100000>,
+			      <0x0 0xff63c000 0x0 0x1000>;
+			reg-names = "vpu", "hhi";
+			interrupts = <GIC_SPI 3 IRQ_TYPE_EDGE_RISING>;
+			power-domains = <&pwrc PWRC_AXG_VPU_ID>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			/* DPI output port */
+			dpi_port: port@2 {
+				reg = <2>;
+			};
+		};
+
 		gic: interrupt-controller@...01000 {
 			compatible = "arm,gic-400";
 			reg = <0x0 0xffc01000 0 0x1000>,
-- 
2.22.0