linux-kernel - [PATCH 07/13] arm64: dts: ti: k3-am64: Enable OSPI nodes at the board level

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Message-ID: <20230802205309.257392-8-afd@ti.com>
Date:   Wed, 2 Aug 2023 15:53:03 -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 07/13] arm64: dts: ti: k3-am64: Enable OSPI nodes at the board level

OSPI nodes defined in the top-level AM64 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-am64-main.dtsi        | 1 +
 arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi | 1 +
 arch/arm64/boot/dts/ti/k3-am642-evm.dts         | 1 +
 arch/arm64/boot/dts/ti/k3-am642-sk.dts          | 1 +
 4 files changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
index d3dd8c426dada..49f910e4b03fc 100644
--- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
@@ -802,6 +802,7 @@ ospi0: spi@...0000 {
 			assigned-clock-parents = <&k3_clks 75 7>;
 			assigned-clock-rates = <166666666>;
 			power-domains = <&k3_pds 75 TI_SCI_PD_EXCLUSIVE>;
+			status = "disabled";
 		};
 	};
 
diff --git a/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
index 5606d775153d4..1c2c8f0daca9f 100644
--- a/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
@@ -181,6 +181,7 @@ i2c_som_rtc: rtc@52 {
 };
 
 &ospi0 {
+	status = "okay";
 	pinctrl-names = "default";
 	pinctrl-0 = <&ospi0_pins_default>;
 
diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
index d84e7ee160328..b4a1f73d4fb17 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
@@ -520,6 +520,7 @@ &tscadc0 {
 };
 
 &ospi0 {
+	status = "okay";
 	pinctrl-names = "default";
 	pinctrl-0 = <&ospi0_pins_default>;
 
diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
index 963d796a3a970..af06ccd466802 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
@@ -518,6 +518,7 @@ &tscadc0 {
 };
 
 &ospi0 {
+	status = "okay";
 	pinctrl-names = "default";
 	pinctrl-0 = <&ospi0_pins_default>;
 
-- 
2.39.2