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arm64: dts: renesas: Add CN15 eMMC and SD overlays for RZ/V2H and RZ/V2N EVKs

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Introduce device tree overlays for supporting the eMMC (RTK0EF0186B02000BJ)
and microSD (RTK0EF0186B01000BJ) sub-boards connected via the CN15
connector on the RZ/V2H and RZ/V2N evaluation kits.

These overlays enable SDHI0 with appropriate pin control settings, power
regulators, and GPIO handling. Both sub-boards are supported using shared
overlay files that can be applied to either EVK due to their identical
connector layout and interface support.

To support this, new DT overlay files are added:
- `rzv2-evk-cn15-emmc.dtso` for eMMC
- `rzv2-evk-cn15-sd.dtso` for microSD

Additionally, the base DTS files for both EVKs are updated to include a
fixed 1.8V regulator (`reg_1p8v`) needed by the eMMC sub-board and
potential future use cases such as HDMI output.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20250627193742.110818-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This commit is contained in:
Lad Prabhakar
2025-06-27 20:37:42 +01:00
committed by Geert Uytterhoeven
parent 424ada15de
commit 3d6c2bc762
5 changed files with 149 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
arch/arm64/boot/dts/renesas/Makefile
View File

@@ -163,8 +163,20 @@ r9a09g047e57-smarc-cru-csi-ov5645-dtbs := r9a09g047e57-smarc.dtb r9a09g047e57-sm
dtb-$(CONFIG_ARCH_R9A09G047) += r9a09g047e57-smarc-cru-csi-ov5645.dtb
dtb-$(CONFIG_ARCH_R9A09G056) += r9a09g056n48-rzv2n-evk.dtb
dtb-$(CONFIG_ARCH_R9A09G056) += rzv2-evk-cn15-emmc.dtbo
r9a09g056n48-rzv2n-evk-cn15-emmc-dtbs := r9a09g056n48-rzv2n-evk.dtb rzv2-evk-cn15-emmc.dtbo
dtb-$(CONFIG_ARCH_R9A09G056) += r9a09g056n48-rzv2n-evk-cn15-emmc.dtb
dtb-$(CONFIG_ARCH_R9A09G056) += rzv2-evk-cn15-sd.dtbo
r9a09g056n48-rzv2n-evk-cn15-sd-dtbs := r9a09g056n48-rzv2n-evk.dtb rzv2-evk-cn15-sd.dtbo
dtb-$(CONFIG_ARCH_R9A09G056) += r9a09g056n48-rzv2n-evk-cn15-sd.dtb
dtb-$(CONFIG_ARCH_R9A09G057) += r9a09g057h44-rzv2h-evk.dtb
dtb-$(CONFIG_ARCH_R9A09G057) += rzv2-evk-cn15-emmc.dtbo
r9a09g057h44-rzv2h-evk-cn15-emmc-dtbs := r9a09g057h44-rzv2h-evk.dtb rzv2-evk-cn15-emmc.dtbo
dtb-$(CONFIG_ARCH_R9A09G057) += r9a09g057h44-rzv2h-evk-cn15-emmc.dtb
dtb-$(CONFIG_ARCH_R9A09G057) += rzv2-evk-cn15-sd.dtbo
r9a09g057h44-rzv2h-evk-cn15-sd-dtbs := r9a09g057h44-rzv2h-evk.dtb rzv2-evk-cn15-sd.dtbo
dtb-$(CONFIG_ARCH_R9A09G057) += r9a09g057h44-rzv2h-evk-cn15-sd.dtb
dtb-$(CONFIG_ARCH_R9A09G057) += r9a09g057h48-kakip.dtb
dtb-$(CONFIG_ARCH_RCAR_GEN3) += draak-ebisu-panel-aa104xd12.dtbo

9
arch/arm64/boot/dts/renesas/r9a09g056n48-rzv2n-evk.dts
View File

@@ -48,6 +48,15 @@
regulator-always-on;
};
reg_1p8v: regulator-1p8v {
compatible = "regulator-fixed";
regulator-name = "fixed-1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-boot-on;
regulator-always-on;
};
reg_3p3v: regulator-3p3v {
compatible = "regulator-fixed";
regulator-name = "fixed-3.3V";

9
arch/arm64/boot/dts/renesas/r9a09g057h44-rzv2h-evk.dts
View File

@@ -55,6 +55,15 @@
regulator-always-on;
};
reg_1p8v: regulator-1p8v {
compatible = "regulator-fixed";
regulator-name = "fixed-1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-boot-on;
regulator-always-on;
};
reg_3p3v: regulator-3p3v {
compatible = "regulator-fixed";

50
arch/arm64/boot/dts/renesas/rzv2-evk-cn15-emmc.dtso Normal file
View File

@@ -0,0 +1,50 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Shared DT overlay for the eMMC Sub Board (RTK0EF0186B02000BJ), which
* is connected to the CN15 connector on the RZ/V2H and RZ/V2N EVKs.
*
* Copyright (C) 2025 Renesas Electronics Corp.
*/
/dts-v1/;
/plugin/;
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/pinctrl/rzg2l-pinctrl.h>
&{/} {
aliases {
mmc0 = "/soc/mmc@15c00000";
};
};
&pinctrl {
sdhi0_emmc_pins: emmc-pins {
sd0-clk {
pins = "SD0CLK";
renesas,output-impedance = <3>;
slew-rate = <0>;
};
sd0-dat-cmd {
pins = "SD0DAT0", "SD0DAT1", "SD0DAT2", "SD0DAT3", "SD0DAT4",
"SD0DAT5", "SD0DAT6", "SD0DAT7", "SD0CMD";
input-enable;
renesas,output-impedance = <3>;
slew-rate = <0>;
};
};
};
&sdhi0 {
pinctrl-0 = <&sdhi0_emmc_pins>;
pinctrl-1 = <&sdhi0_emmc_pins>;
pinctrl-names = "default", "state_uhs";
vmmc-supply = <&reg_3p3v>;
vqmmc-supply = <&reg_1p8v>;
bus-width = <8>;
mmc-hs200-1_8v;
non-removable;
fixed-emmc-driver-type = <1>;
status = "okay";
};

69
arch/arm64/boot/dts/renesas/rzv2-evk-cn15-sd.dtso Normal file
View File

@@ -0,0 +1,69 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Shared DT overlay for the microSD Sub Board (RTK0EF0186B01000BJ), which
* is connected to the CN15 connector on the RZ/V2H and RZ/V2N EVKs.
*
* Copyright (C) 2025 Renesas Electronics Corp.
*/
/dts-v1/;
/plugin/;
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/pinctrl/rzg2l-pinctrl.h>
&{/} {
aliases {
mmc0 = "/soc/mmc@15c00000";
};
vqmmc_sdhi0: regulator-vqmmc-sdhi0 {
compatible = "regulator-gpio";
regulator-name = "SDHI0 VqmmC";
gpios = <&pinctrl RZG2L_GPIO(10, 0) GPIO_ACTIVE_HIGH>;
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
gpios-states = <0>;
states = <3300000 0>, <1800000 1>;
};
};
&pinctrl {
sdhi0-pwr-en-hog {
gpio-hog;
gpios = <RZG2L_GPIO(10, 1) GPIO_ACTIVE_HIGH>;
output-high;
line-name = "sd0_pwr_en";
};
sdhi0_pins: sd0 {
sd0-cd {
pinmux = <RZG2L_PORT_PINMUX(10, 5, 15)>; /* SD0_CD */
};
sd0-clk {
pins = "SD0CLK";
renesas,output-impedance = <3>;
slew-rate = <0>;
};
sd0-dat-cmd {
pins = "SD0DAT0", "SD0DAT1", "SD0DAT2", "SD0DAT3", "SD0CMD";
input-enable;
renesas,output-impedance = <3>;
slew-rate = <0>;
};
};
};
&sdhi0 {
pinctrl-0 = <&sdhi0_pins>;
pinctrl-1 = <&sdhi0_pins>;
pinctrl-names = "default", "state_uhs";
vmmc-supply = <&reg_3p3v>;
vqmmc-supply = <&vqmmc_sdhi0>;
bus-width = <4>;
sd-uhs-sdr50;
sd-uhs-sdr104;
status = "okay";
};