[PATCH 09/10] arm64: dts: ti: k3-am62: Enable SDHCI nodes at the board level

Andrew Davis afd at ti.com
Tue Oct 18 14:15:32 PDT 2022


SDHCI nodes defined in the top-level AM62x SoC dtsi files are incomplete
and will not be functional unless they are extended with pinmux
information.

As the pinmux is only known 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 at ti.com>
---
 arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 3 +++
 arch/arm64/boot/dts/ti/k3-am625-sk.dts   | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
index 43eebff429ab..5a2cd474a761 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
@@ -407,6 +407,7 @@ sdhci0: mmc at fa10000 {
 		ti,otap-del-sel-mmc-hs = <0x0>;
 		ti,otap-del-sel-ddr52 = <0x9>;
 		ti,otap-del-sel-hs200 = <0x6>;
+		status = "disabled";
 	};
 
 	sdhci1: mmc at fa00000 {
@@ -430,6 +431,7 @@ sdhci1: mmc at fa00000 {
 		ti,itap-del-sel-sdr25 = <0x0>;
 		ti,clkbuf-sel = <0x7>;
 		bus-width = <4>;
+		status = "disabled";
 	};
 
 	sdhci2: mmc at fa20000 {
@@ -452,6 +454,7 @@ sdhci2: mmc at fa20000 {
 		ti,itap-del-sel-sdr12 = <0x0>;
 		ti,itap-del-sel-sdr25 = <0x0>;
 		ti,clkbuf-sel = <0x7>;
+		status = "disabled";
 	};
 
 	fss: bus at fc00000 {
diff --git a/arch/arm64/boot/dts/ti/k3-am625-sk.dts b/arch/arm64/boot/dts/ti/k3-am625-sk.dts
index b6d53366ec50..3c98b639b0b2 100644
--- a/arch/arm64/boot/dts/ti/k3-am625-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am625-sk.dts
@@ -335,6 +335,7 @@ exp1: gpio at 22 {
 };
 
 &sdhci0 {
+	status = "okay";
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_mmc0_pins_default>;
 	ti,driver-strength-ohm = <50>;
@@ -343,6 +344,7 @@ &sdhci0 {
 
 &sdhci1 {
 	/* SD/MMC */
+	status = "okay";
 	vmmc-supply = <&vdd_mmc1>;
 	vqmmc-supply = <&vdd_sd_dv>;
 	pinctrl-names = "default";
-- 
2.37.3




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