| Message ID | 20231026070155.1134063-2-n-yadav@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Enable UHS card support on AM62a | expand |
On 10/26/23 2:01 AM, Nitin Yadav wrote: > Hook up required IO voltage regulators to support UHS modes on > SD cards. > > Signed-off-by: Nitin Yadav <n-yadav@ti.com> > --- > arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 20 ++++++++++++++++++++ > 1 file changed, 20 insertions(+) > > diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts > index 9f3dfbfbf369..3ae1ea1997a4 100644 > --- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts > +++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts > @@ -102,6 +102,19 @@ vdd_mmc1: regulator-3 { > gpio = <&exp1 3 GPIO_ACTIVE_HIGH>; > }; > > + vddshv_sdio: regulator-4 { > + compatible = "regulator-gpio"; > + regulator-name = "vddshv_sdio"; > + pinctrl-names = "default"; > + pinctrl-0 = <&vddshv_sdio_default_pins>; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <3300000>; > + regulator-boot-on; > + gpios = <&main_gpio0 31 GPIO_ACTIVE_HIGH>; > + states = <1800000 0x0>, > + <3300000 0x1>; > + }; > + > leds { > compatible = "gpio-leds"; > pinctrl-names = "default"; > @@ -189,6 +202,12 @@ AM62AX_IOPAD(0x1f8, PIN_INPUT_PULLUP, 0) /* (AC2) MMC0_DAT7 */ > >; > }; > > + vddshv_sdio_default_pins: vddshv-sdio-default-pins { > + pinctrl-single,pins = < > + AM62AX_IOPAD(0x07c, PIN_OUTPUT, 7) /* (M19) GPMC0_CLK.GPIO0_31 */ Isn't this ball name N22? I might be wrong, but I did check using SYSCONFIG tool and datasheet. > + >; > + }; > + > main_mmc1_pins_default: main-mmc1-default-pins { > pinctrl-single,pins = < > AM62AX_IOPAD(0x23c, PIN_INPUT, 0) /* (A21) MMC1_CMD */ > @@ -294,6 +313,7 @@ &sdhci1 { > /* SD/MMC */ > status = "okay"; > vmmc-supply = <&vdd_mmc1>; > + vqmmc-supply = <&vddshv_sdio>; > pinctrl-names = "default"; > pinctrl-0 = <&main_mmc1_pins_default>; > ti,driver-strength-ohm = <50>;
diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts index 9f3dfbfbf369..3ae1ea1997a4 100644 --- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts @@ -102,6 +102,19 @@ vdd_mmc1: regulator-3 { gpio = <&exp1 3 GPIO_ACTIVE_HIGH>; }; + vddshv_sdio: regulator-4 { + compatible = "regulator-gpio"; + regulator-name = "vddshv_sdio"; + pinctrl-names = "default"; + pinctrl-0 = <&vddshv_sdio_default_pins>; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + gpios = <&main_gpio0 31 GPIO_ACTIVE_HIGH>; + states = <1800000 0x0>, + <3300000 0x1>; + }; + leds { compatible = "gpio-leds"; pinctrl-names = "default"; @@ -189,6 +202,12 @@ AM62AX_IOPAD(0x1f8, PIN_INPUT_PULLUP, 0) /* (AC2) MMC0_DAT7 */ >; }; + vddshv_sdio_default_pins: vddshv-sdio-default-pins { + pinctrl-single,pins = < + AM62AX_IOPAD(0x07c, PIN_OUTPUT, 7) /* (M19) GPMC0_CLK.GPIO0_31 */ + >; + }; + main_mmc1_pins_default: main-mmc1-default-pins { pinctrl-single,pins = < AM62AX_IOPAD(0x23c, PIN_INPUT, 0) /* (A21) MMC1_CMD */ @@ -294,6 +313,7 @@ &sdhci1 { /* SD/MMC */ status = "okay"; vmmc-supply = <&vdd_mmc1>; + vqmmc-supply = <&vddshv_sdio>; pinctrl-names = "default"; pinctrl-0 = <&main_mmc1_pins_default>; ti,driver-strength-ohm = <50>;
Hook up required IO voltage regulators to support UHS modes on SD cards. Signed-off-by: Nitin Yadav <n-yadav@ti.com> --- arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)