linux-kernel - [PATCH 04/13] arm64: dts: ti: k3-am65: Enable OSPI nodes at the board level

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Message-ID: <20230802205309.257392-5-afd@ti.com>
Date:   Wed, 2 Aug 2023 15:53:00 -0500
From:   Andrew Davis <afd@...com>
To:     Nishanth Menon <nm@...com>, Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>
CC:     <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Andrew Davis <afd@...com>
Subject: [PATCH 04/13] arm64: dts: ti: k3-am65: Enable OSPI nodes at the board level

OSPI nodes defined in the top-level AM65x SoC dtsi files are incomplete
and may not be functional unless they are extended with pinmux and
device information.

As the attached OSPI device is only known about at the board integration
level, these nodes should only be enabled when provided with this
information.

Disable the OSPI nodes in the dtsi files and only enable the ones that
are actually pinned out on a given board.

Signed-off-by: Andrew Davis <afd@...com>
---
 arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi | 1 +
 arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi            | 2 ++
 arch/arm64/boot/dts/ti/k3-am654-base-board.dts     | 1 +
 3 files changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
index e26bd988e5224..6041862d5aa75 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
@@ -593,6 +593,7 @@ adc {
 };
 
 &ospi0 {
+	status = "okay";
 	pinctrl-names = "default";
 	pinctrl-0 = <&mcu_fss0_ospi0_pins_default>;
 
diff --git a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
index 7b1f94a89eca8..2c9c20a9d9179 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
@@ -295,6 +295,7 @@ ospi0: spi@...40000 {
 			power-domains = <&k3_pds 248 TI_SCI_PD_EXCLUSIVE>;
 			#address-cells = <1>;
 			#size-cells = <0>;
+			status = "disabled";
 		};
 
 		ospi1: spi@...50000 {
@@ -309,6 +310,7 @@ ospi1: spi@...50000 {
 			power-domains = <&k3_pds 249 TI_SCI_PD_EXCLUSIVE>;
 			#address-cells = <1>;
 			#size-cells = <0>;
+			status = "disabled";
 		};
 	};
 
diff --git a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
index 973a89b04a22f..43de7c132d343 100644
--- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
@@ -530,6 +530,7 @@ &mcu_r5fss0_core1 {
 };
 
 &ospi0 {
+	status = "okay";
 	pinctrl-names = "default";
 	pinctrl-0 = <&mcu_fss0_ospi0_pins_default>;
 
-- 
2.39.2