[PATCH v1 06/10] ARM: tegra: tf701t: Tune MMC devices
From: Svyatoslav Ryhel
Date: Thu Jun 04 2026 - 03:03:40 EST
Set WiFi sdmmc device to SDR104 and improve power sequence. Set uSD sdmmc
device to SDR104 and reconfigure its power supply. Set eMMC sdmmc device
to HS200.
Signed-off-by: Svyatoslav Ryhel <clamor95@xxxxxxxxx>
---
.../boot/dts/nvidia/tegra114-asus-tf701t.dts | 36 +++++++------------
1 file changed, 13 insertions(+), 23 deletions(-)
diff --git a/arch/arm/boot/dts/nvidia/tegra114-asus-tf701t.dts b/arch/arm/boot/dts/nvidia/tegra114-asus-tf701t.dts
index 3e2bc611e2f7..73276f2aa7fe 100644
--- a/arch/arm/boot/dts/nvidia/tegra114-asus-tf701t.dts
+++ b/arch/arm/boot/dts/nvidia/tegra114-asus-tf701t.dts
@@ -1645,9 +1645,9 @@ ldo8 {
vddio_usd: ldo9 {
regulator-name = "vddio_usd";
- /* min voltage of 1.8v is not stable */
- regulator-min-microvolt = <2900000>;
+ regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <2900000>;
+ regulator-boot-on;
};
avdd_hdmi: ldoln {
@@ -2350,9 +2350,9 @@ brcm_wifi_pwrseq: pwrseq-wifi {
clocks = <&tegra_pmc TEGRA_PMC_CLK_BLINK>;
clock-names = "ext_clock";
- reset-gpios = <&gpio TEGRA_GPIO(X, 7) GPIO_ACTIVE_LOW>;
- post-power-on-delay-ms = <300>;
- power-off-delay-us = <300>;
+ reset-gpios = <&gpio TEGRA_GPIO(CC, 5) GPIO_ACTIVE_LOW>;
+ post-power-on-delay-ms = <100>;
+ power-off-delay-us = <100>;
};
/* WiFi */
@@ -2371,11 +2371,9 @@ mmc@78000000 {
bus-width = <4>;
non-removable;
- sd-uhs-ddr50;
+ sd-uhs-sdr104;
mmc-ddr-1_8v;
- power-gpios = <&gpio TEGRA_GPIO(CC, 5) GPIO_ACTIVE_HIGH>;
-
nvidia,default-tap = <0x2>;
nvidia,default-trim = <0x2>;
@@ -2396,14 +2394,18 @@ wifi@1 {
/* MicroSD card */
mmc@78000400 {
status = "okay";
-
bus-width = <4>;
+
cd-gpios = <&gpio TEGRA_GPIO(V, 2) GPIO_ACTIVE_LOW>;
+ power-gpios = <&gpio TEGRA_GPIO(K, 1) GPIO_ACTIVE_HIGH>;
+
+ sd-uhs-sdr104;
+ mmc-ddr-1_8v;
nvidia,default-tap = <0x3>;
nvidia,default-trim = <0x3>;
- vmmc-supply = <&vdd_2v9_usd>;
+ vmmc-supply = <&vcore_emmc>;
vqmmc-supply = <&vddio_usd>;
};
@@ -2413,7 +2415,7 @@ mmc@78000600 {
bus-width = <8>;
non-removable;
- mmc-ddr-1_8v;
+ mmc-hs200-1_8v;
vmmc-supply = <&vcore_emmc>;
vqmmc-supply = <&vdd_1v8_vio>;
@@ -2614,17 +2616,6 @@ hdmi_5v0_sys: regulator-hdmi {
vin-supply = <&vdd_smps10_out2>;
};
- vdd_2v9_usd: regulator-vdd-usd {
- compatible = "regulator-fixed";
- regulator-name = "vdd_sd_slot";
- regulator-min-microvolt = <2900000>;
- regulator-max-microvolt = <2900000>;
- regulator-boot-on;
- gpio = <&gpio TEGRA_GPIO(K, 1) GPIO_ACTIVE_HIGH>;
- enable-active-high;
- vin-supply = <&vcore_emmc>;
- };
-
vdd_1v8_cam: regulator-cam-vio {
compatible = "regulator-fixed";
regulator-name = "vdd_1v8_cam";
@@ -2661,7 +2652,6 @@ vdd_3v3_com: regulator-com {
regulator-name = "vdd_3v3_com";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
- regulator-always-on;
regulator-boot-on;
gpio = <&gpio TEGRA_GPIO(U, 1) GPIO_ACTIVE_HIGH>;
enable-active-high;
--
2.53.0