Re: [PATCH v9 3/3] arm64: dts: ti: k3-j7200: Add support for higher speed modes and update delay select values for MMCSD subsystems
Hi,
On 26/03/21 12:11 pm, Aswath Govindraju wrote:
> The following speed modes are now supported in J7200 SoC,
> - HS200 and HS400 modes at 1.8 V card voltage, in MMCSD0 subsystem [1].
> - UHS-I speed modes in MMCSD1 subsystem [1].
>
> Add support for UHS-I modes by adding voltage regulator device tree nodes
> and corresponding pinmux details, to power cycle and voltage switch cards.
> Set respective tags in sdhci0 and remove no-1-8-v tag from sdhci1
> device tree nodes.
>
> Also update the delay values for various speed modes supported, based on
> the revised january 2021 J7200 datasheet[2].
>
> [1] - section 12.3.6.1.1 MMCSD Features, in
> https://www.ti.com/lit/ug/spruiu1a/spruiu1a.pdf,
> (SPRUIU1A – JULY 2020 – REVISED JANUARY 2021)
>
> [2] - https://www.ti.com/lit/ds/symlink/dra821u.pdf,
> (SPRSP57B – APRIL 2020 – REVISED JANUARY 2021)
>
> Signed-off-by: Aswath Govindraju
> Reviewed-by: Kishon Vijay Abraham I
Thanks! Patch looks good to me.
Regards
Kishon
> ---
> .../dts/ti/k3-j7200-common-proc-board.dts | 78 +++
> arch/arm64/boot/dts/ti/k3-j7200-main.dtsi | 14 +++-
> 2 files changed, 90 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
> b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
> index b493f939b09a..bedd01b7a32c 100644
> --- a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
> +++ b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
> @@ -16,6 +16,65 @@
> stdout-path = "serial2:115200n8";
> bootargs = "console=ttyS2,115200n8
> earlycon=ns16550a,mmio32,0x0280";
> };
> +
> + evm_12v0: fixedregulator-evm12v0 {
> + /* main supply */
> + compatible = "regulator-fixed";
> + regulator-name = "evm_12v0";
> + regulator-min-microvolt = <1200>;
> + regulator-max-microvolt = <1200>;
> + regulator-always-on;
> + regulator-boot-on;
> + };
> +
> + vsys_3v3: fixedregulator-vsys3v3 {
> + /* Output of LM5140 */
> + compatible = "regulator-fixed";
> + regulator-name = "vsys_3v3";
> + regulator-min-microvolt = <330>;
> + regulator-max-microvolt = <330>;
> + vin-supply = <_12v0>;
> + regulator-always-on;
> + regulator-boot-on;
> + };
> +
> + vsys_5v0: fixedregulator-vsys5v0 {
> + /* Output of LM5140 */
> + compatible = "regulator-fixed";
> + regulator-name = "vsys_5v0";
> + regulator-min-microvolt = <500>;
> + regulator-max-microvolt = <500>;
> + vin-supply = <_12v0>;
> + regulator-always-on;
> + regulator-boot-on;
> + };
> +
> + vdd_mmc1: fixedregulator-sd {
> + /* Output of TPS22918 */
> + compatible = "regulator-fixed";
> + regulator-name = "vdd_mmc1";
> + regulator-min-microvolt = <330>;
> + regulator-max-microvolt = <330>;
> + regulator-boot-on;
> + enable-active-high;
> + vin-supply = <_3v3>;
> + gpio = < 2 GPIO_ACTIVE_HIGH>;
> + };
> +
> + vdd_sd_dv: gpio-regulator-TLV71033 {
> + /* Output of TLV71033 */
> + compatible = "regulator-gpio";
> + regulator-name = "tlv71033";
> + pinctrl-names = "default";
> + pinctrl-0 = <_sd_dv_pins_default>;
> + regulator-min-microvolt = <180>;
> + regulator-max-microvolt = <330>;
> + regulator-boot-on;
> + vin-supply = <_5v0>;
> + gpios = <_gpio0 55 GPIO_ACTIVE_HIGH>;
> + states = <180 0x0>,
> + <330 0x1>;
> + };
> };
>
> _pmx0 {
> @@ -45,6 +104,13 @@
> };
>
> _pmx0 {
> + main_i2c0_pins_default: main-i2c0-pins-default {
> + pinctrl-single,pins = <
> + J721E_IOPAD(0xd4, PIN_INPUT_PULLUP, 0) /* (V3) I2C0_SCL
> */
> + J721E_IOPAD(0xd8, PIN_INPUT_PULLUP, 0) /* (W2) I2C0_SDA
> */
> + >;
> + };
> +
> main_i2c1_pins_default: main-i2c1-pins-default {
> pinctrl-single,pins = <
> J721E_IOPAD(0xdc, PIN_INPUT_PULLUP, 3) /* (U3)
> ECAP0_IN_APWM_OUT.I2C1_SCL */
> @@ -70,6 +136,12 @@
> J721E_IOPAD(0x120, PIN_OUTPUT, 0) /* (T4) USB0_DRVVBUS
> */
> >;
> };
> +
> + vdd_sd_dv_pins_default: vdd-sd-dv-pins-default {
> + pinctrl-single,pins = <
> + J721E_IOPAD(0xd0, PIN_OUTPUT, 7) /* (T5)
> SPI0_D1.GPIO0_55 */
> + >;
> + };
> };
>
> _uart0 {
> @@ -157,6 +229,10 @@
> };
>
> _i2c0 {
> + pinctrl-names = "default";
> + pinctrl-0 = <_i2c0_pins_default>;
> + clock-frequency = <40>;
> +
>
[PATCH v9 3/3] arm64: dts: ti: k3-j7200: Add support for higher speed modes and update delay select values for MMCSD subsystems
The following speed modes are now supported in J7200 SoC,
- HS200 and HS400 modes at 1.8 V card voltage, in MMCSD0 subsystem [1].
- UHS-I speed modes in MMCSD1 subsystem [1].
Add support for UHS-I modes by adding voltage regulator device tree nodes
and corresponding pinmux details, to power cycle and voltage switch cards.
Set respective tags in sdhci0 and remove no-1-8-v tag from sdhci1
device tree nodes.
Also update the delay values for various speed modes supported, based on
the revised january 2021 J7200 datasheet[2].
[1] - section 12.3.6.1.1 MMCSD Features, in
https://www.ti.com/lit/ug/spruiu1a/spruiu1a.pdf,
(SPRUIU1A – JULY 2020 – REVISED JANUARY 2021)
[2] - https://www.ti.com/lit/ds/symlink/dra821u.pdf,
(SPRSP57B – APRIL 2020 – REVISED JANUARY 2021)
Signed-off-by: Aswath Govindraju
Reviewed-by: Kishon Vijay Abraham I
---
.../dts/ti/k3-j7200-common-proc-board.dts | 78 +++
arch/arm64/boot/dts/ti/k3-j7200-main.dtsi | 14 +++-
2 files changed, 90 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
index b493f939b09a..bedd01b7a32c 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
@@ -16,6 +16,65 @@
stdout-path = "serial2:115200n8";
bootargs = "console=ttyS2,115200n8
earlycon=ns16550a,mmio32,0x0280";
};
+
+ evm_12v0: fixedregulator-evm12v0 {
+ /* main supply */
+ compatible = "regulator-fixed";
+ regulator-name = "evm_12v0";
+ regulator-min-microvolt = <1200>;
+ regulator-max-microvolt = <1200>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ vsys_3v3: fixedregulator-vsys3v3 {
+ /* Output of LM5140 */
+ compatible = "regulator-fixed";
+ regulator-name = "vsys_3v3";
+ regulator-min-microvolt = <330>;
+ regulator-max-microvolt = <330>;
+ vin-supply = <_12v0>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ vsys_5v0: fixedregulator-vsys5v0 {
+ /* Output of LM5140 */
+ compatible = "regulator-fixed";
+ regulator-name = "vsys_5v0";
+ regulator-min-microvolt = <500>;
+ regulator-max-microvolt = <500>;
+ vin-supply = <_12v0>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ vdd_mmc1: fixedregulator-sd {
+ /* Output of TPS22918 */
+ compatible = "regulator-fixed";
+ regulator-name = "vdd_mmc1";
+ regulator-min-microvolt = <330>;
+ regulator-max-microvolt = <330>;
+ regulator-boot-on;
+ enable-active-high;
+ vin-supply = <_3v3>;
+ gpio = < 2 GPIO_ACTIVE_HIGH>;
+ };
+
+ vdd_sd_dv: gpio-regulator-TLV71033 {
+ /* Output of TLV71033 */
+ compatible = "regulator-gpio";
+ regulator-name = "tlv71033";
+ pinctrl-names = "default";
+ pinctrl-0 = <_sd_dv_pins_default>;
+ regulator-min-microvolt = <180>;
+ regulator-max-microvolt = <330>;
+ regulator-boot-on;
+ vin-supply = <_5v0>;
+ gpios = <_gpio0 55 GPIO_ACTIVE_HIGH>;
+ states = <180 0x0>,
+<330 0x1>;
+ };
};
_pmx0 {
@@ -45,6 +104,13 @@
};
_pmx0 {
+ main_i2c0_pins_default: main-i2c0-pins-default {
+ pinctrl-single,pins = <
+ J721E_IOPAD(0xd4, PIN_INPUT_PULLUP, 0) /* (V3) I2C0_SCL
*/
+ J721E_IOPAD(0xd8, PIN_INPUT_PULLUP, 0) /* (W2) I2C0_SDA
*/
+ >;
+ };
+
main_i2c1_pins_default: main-i2c1-pins-default {
pinctrl-single,pins = <
J721E_IOPAD(0xdc, PIN_INPUT_PULLUP, 3) /* (U3)
ECAP0_IN_APWM_OUT.I2C1_SCL */
@@ -70,6 +136,12 @@
J721E_IOPAD(0x120, PIN_OUTPUT, 0) /* (T4) USB0_DRVVBUS
*/
>;
};
+
+ vdd_sd_dv_pins_default: vdd-sd-dv-pins-default {
+ pinctrl-single,pins = <
+ J721E_IOPAD(0xd0, PIN_OUTPUT, 7) /* (T5)
SPI0_D1.GPIO0_55 */
+ >;
+ };
};
_uart0 {
@@ -157,6 +229,10 @@
};
_i2c0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <_i2c0_pins_default>;
+ clock-frequency = <40>;
+
exp1: gpio@20 {
compatible = "ti,tca6416";
reg = <0x20>;
@@ -206,6 +282,8 @@
/* SD card */
pinctrl-0 = <_mmc1_pins_default>;
pinctrl-names = "default";
+
