From: Faiz Abbas faiz_abbas@ti.com
Add support for regulators to power cycle and switch IO voltage to the SD card. This enables support for UHS modes.
Signed-off-by: Faiz Abbas faiz_abbas@ti.com Signed-off-by: Aswath Govindraju a-govindraju@ti.com --- arch/arm/dts/k3-j721e-common-proc-board.dts | 32 +++++++++++++++++++++ 1 file changed, 32 insertions(+)
diff --git a/arch/arm/dts/k3-j721e-common-proc-board.dts b/arch/arm/dts/k3-j721e-common-proc-board.dts index 496a15e1d1ac..6b29200bba85 100644 --- a/arch/arm/dts/k3-j721e-common-proc-board.dts +++ b/arch/arm/dts/k3-j721e-common-proc-board.dts @@ -6,6 +6,7 @@ /dts-v1/;
#include "k3-j721e-som-p0.dtsi" +#include <dt-bindings/gpio/gpio.h>
/ { chosen { @@ -24,6 +25,29 @@ remoteproc7 = &c66_1; remoteproc8 = &c71_0; }; + + vdd_mmc1: fixedregulator-sd { + compatible = "regulator-fixed"; + regulator-name = "vdd_mmc1"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + enable-active-high; + gpio = <&exp2 2 GPIO_ACTIVE_HIGH>; + }; + + vdd_sd_dv_alt: gpio-regulator-TLV71033 { + compatible = "regulator-gpio"; + pinctrl-names = "default"; + pinctrl-0 = <&vdd_sd_dv_alt_pins_default>; + regulator-name = "tlv71033"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + gpios = <&main_gpio0 117 GPIO_ACTIVE_HIGH>; + states = <1800000 0x0 + 3300000 0x1>; + }; };
&wkup_uart0 { @@ -79,6 +103,12 @@ J721E_IOPAD(0x25c, PIN_INPUT, 0) /* (R28) MMC1_SDWP */ >; }; + + vdd_sd_dv_alt_pins_default: vdd_sd_dv_alt_pins_default { + pinctrl-single,pins = < + J721E_IOPAD(0x1d8, PIN_INPUT, 7) /* (W4) SPI1_CS1.GPIO0_117 */ + >; + }; };
&main_sdhci0 { @@ -92,6 +122,8 @@ pinctrl-names = "default"; pinctrl-0 = <&main_mmc1_pins_default>; ti,driver-strength-ohm = <50>; + vmmc-supply = <&vdd_mmc1>; + vqmmc-supply = <&vdd_sd_dv_alt>; };
&main_pmx0 {