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arm64: dts: renesas: rzt2h-n2h-evk: Configure eMMC/SDHI pins

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The HW user manual for the Renesas RZ/T2H and the RZ/N2H states that for
SDR104, SDR50, and HS200 to work properly the eMMC/SDHI interface pins
have to be configured as specified below:
  - SDn_CLK pin - drive strength: Ultra High, slew rate: Fast,
  - Other SDn_* pins: drive strength: High, slew rate: Fast,
    Schmitt trigger: disabled (not applicable to SDn_RST pins).

HS DDR and DDR50 are currently not supported, and for every other bus
mode the eMMC/SDHI interface pins should be configured as specified
below:
  - SDn_CLK pin - drive strength: High, slew rate: Fast,
  - Other SDn_* pins: drive strength: Middle, slew rate: Fast,
    Schmitt trigger: disabled (not applicable to SDn_RST pins).

Adjust the pin definitions accordingly.

Signed-off-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://patch.msgid.link/20260514210220.7616-1-fabrizio.castro.jz@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This commit is contained in:
Fabrizio Castro 2026-05-14 22:02:17 +01:00 committed by Geert Uytterhoeven
parent 54613573ff
commit a6c4c7114b
1 changed files with 136 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

147
arch/arm64/boot/dts/renesas/rzt2h-n2h-evk-common.dtsi
View File

@ -275,12 +275,63 @@ data-pins {
<RZT2H_PORT_PINMUX(12, 7, 0x29)>, /* SD0_DATA5 */
<RZT2H_PORT_PINMUX(13, 0, 0x29)>, /* SD0_DATA6 */
<RZT2H_PORT_PINMUX(13, 1, 0x29)>; /* SD0_DATA7 */
drive-strength-microamp = <5000>;
slew-rate = <1>;
input-schmitt-disable;
};
ctrl-pins {
pinmux = <RZT2H_PORT_PINMUX(12, 0, 0x29)>, /* SD0_CLK */
<RZT2H_PORT_PINMUX(12, 1, 0x29)>, /* SD0_CMD */
<RZT2H_PORT_PINMUX(13, 2, 0x29)>; /* SD0_RST# */
clk-pins {
pinmux = <RZT2H_PORT_PINMUX(12, 0, 0x29)>; /* SD0_CLK */
drive-strength-microamp = <9000>;
slew-rate = <1>;
};
cmd-pins {
pinmux = <RZT2H_PORT_PINMUX(12, 1, 0x29)>; /* SD0_CMD */
drive-strength-microamp = <5000>;
slew-rate = <1>;
input-schmitt-disable;
};
rst-pins {
pinmux = <RZT2H_PORT_PINMUX(13, 2, 0x29)>; /* SD0_RST# */
drive-strength-microamp = <5000>;
slew-rate = <1>;
};
};
sdhi0_emmc_uhs_pins: sd0-emmc-uhs-group {
data-pins {
pinmux = <RZT2H_PORT_PINMUX(12, 2, 0x29)>, /* SD0_DATA0 */
<RZT2H_PORT_PINMUX(12, 3, 0x29)>, /* SD0_DATA1 */
<RZT2H_PORT_PINMUX(12, 4, 0x29)>, /* SD0_DATA2 */
<RZT2H_PORT_PINMUX(12, 5, 0x29)>, /* SD0_DATA3 */
<RZT2H_PORT_PINMUX(12, 6, 0x29)>, /* SD0_DATA4 */
<RZT2H_PORT_PINMUX(12, 7, 0x29)>, /* SD0_DATA5 */
<RZT2H_PORT_PINMUX(13, 0, 0x29)>, /* SD0_DATA6 */
<RZT2H_PORT_PINMUX(13, 1, 0x29)>; /* SD0_DATA7 */
drive-strength-microamp = <9000>;
slew-rate = <1>;
input-schmitt-disable;
};
clk-pins {
pinmux = <RZT2H_PORT_PINMUX(12, 0, 0x29)>; /* SD0_CLK */
drive-strength-microamp = <11800>;
slew-rate = <1>;
};
cmd-pins {
pinmux = <RZT2H_PORT_PINMUX(12, 1, 0x29)>; /* SD0_CMD */
drive-strength-microamp = <9000>;
slew-rate = <1>;
input-schmitt-disable;
};
rst-pins {
pinmux = <RZT2H_PORT_PINMUX(13, 2, 0x29)>; /* SD0_RST# */
drive-strength-microamp = <9000>;
slew-rate = <1>;
};
};
@ -299,12 +350,49 @@ data-pins {
<RZT2H_PORT_PINMUX(12, 3, 0x29)>, /* SD0_DATA1 */
<RZT2H_PORT_PINMUX(12, 4, 0x29)>, /* SD0_DATA2 */
<RZT2H_PORT_PINMUX(12, 5, 0x29)>; /* SD0_DATA3 */
drive-strength-microamp = <5000>;
slew-rate = <1>;
input-schmitt-disable;
};
clk-pins {
pinmux = <RZT2H_PORT_PINMUX(12, 0, 0x29)>; /* SD0_CLK */
drive-strength-microamp = <9000>;
slew-rate = <1>;
};
ctrl-pins {
pinmux = <RZT2H_PORT_PINMUX(12, 0, 0x29)>, /* SD0_CLK */
<RZT2H_PORT_PINMUX(12, 1, 0x29)>, /* SD0_CMD */
pinmux = <RZT2H_PORT_PINMUX(12, 1, 0x29)>, /* SD0_CMD */
<RZT2H_PORT_PINMUX(22, 5, 0x29)>; /* SD0_CD */
drive-strength-microamp = <5000>;
slew-rate = <1>;
input-schmitt-disable;
};
};
sdhi0_sd_uhs_pins: sd0-sd-uhs-group {
data-pins {
pinmux = <RZT2H_PORT_PINMUX(12, 2, 0x29)>, /* SD0_DATA0 */
<RZT2H_PORT_PINMUX(12, 3, 0x29)>, /* SD0_DATA1 */
<RZT2H_PORT_PINMUX(12, 4, 0x29)>, /* SD0_DATA2 */
<RZT2H_PORT_PINMUX(12, 5, 0x29)>; /* SD0_DATA3 */
drive-strength-microamp = <9000>;
slew-rate = <1>;
input-schmitt-disable;
};
clk-pins {
pinmux = <RZT2H_PORT_PINMUX(12, 0, 0x29)>; /* SD0_CLK */
drive-strength-microamp = <11800>;
slew-rate = <1>;
};
ctrl-pins {
pinmux = <RZT2H_PORT_PINMUX(12, 1, 0x29)>, /* SD0_CMD */
<RZT2H_PORT_PINMUX(22, 5, 0x29)>; /* SD0_CD */
drive-strength-microamp = <9000>;
slew-rate = <1>;
input-schmitt-disable;
};
};
@ -323,12 +411,49 @@ data-pins {
<RZT2H_PORT_PINMUX(17, 0, 0x29)>, /* SD1_DATA1 */
<RZT2H_PORT_PINMUX(17, 1, 0x29)>, /* SD1_DATA2 */
<RZT2H_PORT_PINMUX(17, 2, 0x29)>; /* SD1_DATA3 */
drive-strength-microamp = <5000>;
slew-rate = <1>;
input-schmitt-disable;
};
clk-pins {
pinmux = <RZT2H_PORT_PINMUX(16, 5, 0x29)>; /* SD1_CLK */
drive-strength-microamp = <9000>;
slew-rate = <1>;
};
ctrl-pins {
pinmux = <RZT2H_PORT_PINMUX(16, 5, 0x29)>, /* SD1_CLK */
<RZT2H_PORT_PINMUX(16, 6, 0x29)>, /* SD1_CMD */
pinmux = <RZT2H_PORT_PINMUX(16, 6, 0x29)>, /* SD1_CMD */
<RZT2H_PORT_PINMUX(17, 4, 0x29)>; /* SD1_CD */
drive-strength-microamp = <5000>;
slew-rate = <1>;
input-schmitt-disable;
};
};
sdhi1_uhs_pins: sd1-uhs-group {
data-pins {
pinmux = <RZT2H_PORT_PINMUX(16, 7, 0x29)>, /* SD1_DATA0 */
<RZT2H_PORT_PINMUX(17, 0, 0x29)>, /* SD1_DATA1 */
<RZT2H_PORT_PINMUX(17, 1, 0x29)>, /* SD1_DATA2 */
<RZT2H_PORT_PINMUX(17, 2, 0x29)>; /* SD1_DATA3 */
drive-strength-microamp = <9000>;
slew-rate = <1>;
input-schmitt-disable;
};
clk-pins {
pinmux = <RZT2H_PORT_PINMUX(16, 5, 0x29)>; /* SD1_CLK */
drive-strength-microamp = <11800>;
slew-rate = <1>;
};
ctrl-pins {
pinmux = <RZT2H_PORT_PINMUX(16, 6, 0x29)>, /* SD1_CMD */
<RZT2H_PORT_PINMUX(17, 4, 0x29)>; /* SD1_CD */
drive-strength-microamp = <9000>;
slew-rate = <1>;
input-schmitt-disable;
};
};
};
@ -342,7 +467,7 @@ &sci0 {
#if SD0_EMMC
&sdhi0 {
pinctrl-0 = <&sdhi0_emmc_pins>;
pinctrl-1 = <&sdhi0_emmc_pins>;
pinctrl-1 = <&sdhi0_emmc_uhs_pins>;
pinctrl-names = "default", "state_uhs";
vmmc-supply = <&reg_3p3v>;
vqmmc-supply = <&reg_1p8v>;
@ -357,7 +482,7 @@ &sdhi0 {
#if SD0_SD
&sdhi0 {
pinctrl-0 = <&sdhi0_sd_pins>;
pinctrl-1 = <&sdhi0_sd_pins>;
pinctrl-1 = <&sdhi0_sd_uhs_pins>;
pinctrl-names = "default", "state_uhs";
vmmc-supply = <&reg_3p3v>;
vqmmc-supply = <&vqmmc_sdhi0>;
@ -372,7 +497,7 @@ &sdhi0 {
#if SD1_MICRO_SD
&sdhi1 {
pinctrl-0 = <&sdhi1_pins>;
pinctrl-1 = <&sdhi1_pins>;
pinctrl-1 = <&sdhi1_uhs_pins>;
pinctrl-names = "default", "state_uhs";
vmmc-supply = <&reg_3p3v>;
vqmmc-supply = <&vccq_sdhi1>;