linux-kernel - [PATCH 01/13] arm64: dts: ti: k3-j721e: Enable SDHCI nodes at the board level

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Date:   Wed, 2 Aug 2023 15:52:57 -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 01/13] arm64: dts: ti: k3-j721e: Enable SDHCI nodes at the board level

SDHCI nodes defined in the top-level J721e 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@...com>
---
 arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts    |  7 ++-----
 arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts |  7 ++-----
 arch/arm64/boot/dts/ti/k3-j721e-main.dtsi             |  3 +++
 arch/arm64/boot/dts/ti/k3-j721e-sk.dts                | 11 +----------
 4 files changed, 8 insertions(+), 20 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts b/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
index 66aac145e7530..64eed76bbb7a3 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
@@ -563,6 +563,7 @@ &main_uart0 {
 
 &main_sdhci0 {
 	/* eMMC */
+	status = "okay";
 	non-removable;
 	ti,driver-strength-ohm = <50>;
 	disable-wp;
@@ -570,6 +571,7 @@ &main_sdhci0 {
 
 &main_sdhci1 {
 	/* SD Card */
+	status = "okay";
 	vmmc-supply = <&vdd_mmc1>;
 	vqmmc-supply = <&vdd_sd_dv_alt>;
 	pinctrl-names = "default";
@@ -578,11 +580,6 @@ &main_sdhci1 {
 	disable-wp;
 };
 
-&main_sdhci2 {
-	/* Unused */
-	status = "disabled";
-};
-
 &ospi0 {
 	/* Unused */
 	status = "disabled";
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
index c1cbbae761827..e9b84d2c64b26 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
@@ -504,6 +504,7 @@ &wkup_gpio1 {
 
 &main_sdhci0 {
 	/* eMMC */
+	status = "okay";
 	non-removable;
 	ti,driver-strength-ohm = <50>;
 	disable-wp;
@@ -511,6 +512,7 @@ &main_sdhci0 {
 
 &main_sdhci1 {
 	/* SD/MMC */
+	status = "okay";
 	vmmc-supply = <&vdd_mmc1>;
 	vqmmc-supply = <&vdd_sd_dv_alt>;
 	pinctrl-names = "default";
@@ -519,11 +521,6 @@ &main_sdhci1 {
 	disable-wp;
 };
 
-&main_sdhci2 {
-	/* Unused */
-	status = "disabled";
-};
-
 &usb_serdes_mux {
 	idle-states = <1>, <0>; /* USB0 to SERDES3, USB1 to SERDES1 */
 };
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
index 3acd55ffd4ffc..0ca31186b9b74 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
@@ -1478,6 +1478,7 @@ main_sdhci0: mmc@...0000 {
 		ti,itap-del-sel-ddr52 = <0x3>;
 		ti,trm-icp = <0x8>;
 		dma-coherent;
+		status = "disabled";
 	};
 
 	main_sdhci1: mmc@...0000 {
@@ -1505,6 +1506,7 @@ main_sdhci1: mmc@...0000 {
 		ti,clkbuf-sel = <0x7>;
 		dma-coherent;
 		sdhci-caps-mask = <0x2 0x0>;
+		status = "disabled";
 	};
 
 	main_sdhci2: mmc@...8000 {
@@ -1532,6 +1534,7 @@ main_sdhci2: mmc@...8000 {
 		ti,clkbuf-sel = <0x7>;
 		dma-coherent;
 		sdhci-caps-mask = <0x2 0x0>;
+		status = "disabled";
 	};
 
 	usbss0: cdns-usb@...4000 {
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
index 0ee4f38ec8f03..bd1bd1b746056 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
@@ -582,13 +582,9 @@ &main_uart1 {
 	pinctrl-0 = <&main_uart1_pins_default>;
 };
 
-&main_sdhci0 {
-	/* Unused */
-	status = "disabled";
-};
-
 &main_sdhci1 {
 	/* SD Card */
+	status = "okay";
 	vmmc-supply = <&vdd_mmc1>;
 	vqmmc-supply = <&vdd_sd_dv_alt>;
 	pinctrl-names = "default";
@@ -597,11 +593,6 @@ &main_sdhci1 {
 	disable-wp;
 };
 
-&main_sdhci2 {
-	/* Unused */
-	status = "disabled";
-};
-
 &ospi0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&mcu_fss0_ospi0_pins_default>;
-- 
2.39.2