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From:   Andrew Davis <afd@ti.com>
To:     Nishanth Menon <nm@ti.com>, Vignesh Raghavendra <vigneshr@ti.com>,
        Tero Kristo <kristo@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>,
        <linux-arm-kernel@lists.infradead.org>
CC:     <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        Andrew Davis <afd@ti.com>
Subject: [PATCH 03/13] arm64: dts: ti: k3-j721s2: Enable SDHCI nodes at the board level
Date:   Wed, 2 Aug 2023 15:52:59 -0500
Message-ID: <20230802205309.257392-4-afd@ti.com>
In-Reply-To: <20230802205309.257392-1-afd@ti.com>
References: <20230802205309.257392-1-afd@ti.com>
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SDHCI nodes defined in the top-level J721s2 SoC dtsi files are incomplete
and will not be functional unless they are extended.

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

Disable the SDHCI 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@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts       | 6 +-----
 arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts | 2 ++
 arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi             | 2 ++
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts b/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
index 21ad49cfa7eed..ffca12df0a6da 100644
--- a/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts
@@ -373,13 +373,9 @@ &mcu_i2c0 {
 	clock-frequency = <400000>;
 };
 
-&main_sdhci0 {
-	/* Unused */
-	status = "disabled";
-};
-
 &main_sdhci1 {
 	/* SD card */
+	status = "okay";
 	pinctrl-0 = <&main_mmc1_pins_default>;
 	pinctrl-names = "default";
 	disable-wp;
diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts
index 02b7a559bdf21..3a8e6eb402448 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts
@@ -333,6 +333,7 @@ exp2: gpio@22 {
 
 &main_sdhci0 {
 	/* eMMC */
+	status = "okay";
 	non-removable;
 	ti,driver-strength-ohm = <50>;
 	disable-wp;
@@ -340,6 +341,7 @@ &main_sdhci0 {
 
 &main_sdhci1 {
 	/* SD card */
+	status = "okay";
 	pinctrl-0 = <&main_mmc1_pins_default>;
 	pinctrl-names = "default";
 	disable-wp;
diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
index ed79ab3a32718..c46079fe4ed6e 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
@@ -665,6 +665,7 @@ main_sdhci0: mmc@4f80000 {
 		mmc-hs200-1_8v;
 		mmc-hs400-1_8v;
 		dma-coherent;
+		status = "disabled";
 	};
 
 	main_sdhci1: mmc@4fb0000 {
@@ -694,6 +695,7 @@ main_sdhci1: mmc@4fb0000 {
 		dma-coherent;
 		/* Masking support for SDR104 capability */
 		sdhci-caps-mask = <0x00000003 0x00000000>;
+		status = "disabled";
 	};
 
 	main_navss: bus@30000000 {
-- 
2.39.2