linux-kernel - [PATCH v2] ARM: dts: aspeed: ast2600-evb: Support KVM

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Date:   Fri, 25 Mar 2022 02:21:07 +0000
From:   Howard Chiu <howard_chiu@...eedtech.com>
To:     "robh+dt@...nel.org" <robh+dt@...nel.org>,
        Joel Stanley <joel@....id.au>,
        "andrew@...id.au" <andrew@...id.au>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-aspeed@...ts.ozlabs.org" <linux-aspeed@...ts.ozlabs.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     Troy Lee <troy_lee@...eedtech.com>
Subject: [PATCH v2] ARM: dts: aspeed: ast2600-evb: Support KVM

Enable video engine and reserve memory for it.
Enable USB/vHUB for HID support

Signed-off-by: Howard Chiu <howard_chiu@...eedtech.com>
---
Change since v1: 
1. Remove video engine node and reset definition.

 arch/arm/boot/dts/aspeed-ast2600-evb.dts | 39 +++++++++++++++++++-----
 1 file changed, 31 insertions(+), 8 deletions(-)

diff --git a/arch/arm/boot/dts/aspeed-ast2600-evb.dts b/arch/arm/boot/dts/aspeed-ast2600-evb.dts
index b7eb552640cb..d535a711bf5a 100644
--- a/arch/arm/boot/dts/aspeed-ast2600-evb.dts
+++ b/arch/arm/boot/dts/aspeed-ast2600-evb.dts
@@ -23,6 +23,19 @@ memory@...00000 {
 		reg = <0x80000000 0x80000000>;
 	};
 
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		video_engine_memory: video {
+			size = <0x04000000>;
+			alignment = <0x01000000>;
+			compatible = "shared-dma-pool";
+			reusable;
+		};
+	};
+
 	vcc_sdhci0: regulator-vcc-sdhci0 {
 		compatible = "regulator-fixed";
 		regulator-name = "SDHCI0 Vcc";
@@ -250,14 +263,6 @@ &fsim0 {
 	status = "okay";
 };
 
-&ehci1 {
-	status = "okay";
-};
-
-&uhci {
-	status = "okay";
-};
-
 &sdc {
 	status = "okay";
 };
@@ -300,3 +305,21 @@ &sdhci1 {
 	vqmmc-supply = <&vccq_sdhci1>;
 	clk-phase-sd-hs = <7>, <200>;
 };
+
+&ehci1 {
+	status = "okay";
+};
+
+&uhci {
+	status = "okay";
+};
+
+&vhub {
+	status = "okay";
+	pinctrl-names = "default";
+};
+
+&video {
+	status = "okay";
+	memory-region = <&video_engine_memory>;
+};
-- 
2.25.1