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arm64: dts: mediatek: mt7988a-bpi-r4: Add dt overlays for sd + emmc

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Bananapi R4 can use the mmc controller either with sd card or the onboard
emmc. The used device is selected through hardware-switches and probed in
bootloader.
Add devicetree overlays for both mmc configurations.

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20241217091238.16032-14-linux@fw-web.de
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
This commit is contained in:
Frank Wunderlich
2024-12-17 10:12:27 +01:00
committed by AngeloGioacchino Del Regno
parent 6e647beeb2
commit 714a80ced0
3 changed files with 67 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
arch/arm64/boot/dts/mediatek/Makefile
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@@ -22,6 +22,8 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += mt7986a-bananapi-bpi-r3-sd.dtbo
dtb-$(CONFIG_ARCH_MEDIATEK) += mt7986a-rfb.dtb
dtb-$(CONFIG_ARCH_MEDIATEK) += mt7986b-rfb.dtb
dtb-$(CONFIG_ARCH_MEDIATEK) += mt7988a-bananapi-bpi-r4.dtb
dtb-$(CONFIG_ARCH_MEDIATEK) += mt7988a-bananapi-bpi-r4-emmc.dtbo
dtb-$(CONFIG_ARCH_MEDIATEK) += mt7988a-bananapi-bpi-r4-sd.dtbo
dtb-$(CONFIG_ARCH_MEDIATEK) += mt8167-pumpkin.dtb
dtb-$(CONFIG_ARCH_MEDIATEK) += mt8173-elm.dtb
dtb-$(CONFIG_ARCH_MEDIATEK) += mt8173-elm-hana.dtb
@@ -104,3 +106,4 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += mt8516-pumpkin.dtb
# Device tree overlays support
DTC_FLAGS_mt7986a-bananapi-bpi-r3 := -@
DTC_FLAGS_mt7986a-bananapi-bpi-r3-mini := -@
DTC_FLAGS_mt7988a-bananapi-bpi-r4 := -@

33
arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-emmc.dtso Normal file
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@@ -0,0 +1,33 @@
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/*
* Copyright (C) 2021 MediaTek Inc.
* Author: Frank Wunderlich <frank-w@public-files.de>
*/
/dts-v1/;
/plugin/;
/ {
compatible = "bananapi,bpi-r4", "mediatek,mt7988a";
};
&{/soc/mmc@11230000} {
pinctrl-names = "default", "state_uhs";
pinctrl-0 = <&mmc0_pins_emmc_51>;
pinctrl-1 = <&mmc0_pins_emmc_51>;
bus-width = <8>;
max-frequency = <200000000>;
cap-mmc-highspeed;
mmc-hs200-1_8v;
mmc-hs400-1_8v;
hs400-ds-delay = <0x12814>;
vqmmc-supply = <&reg_1p8v>;
vmmc-supply = <&reg_3p3v>;
non-removable;
no-sd;
no-sdio;
#address-cells = <1>;
#size-cells = <0>;
status = "okay";
};

31
arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-sd.dtso Normal file
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@@ -0,0 +1,31 @@
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/*
* Copyright (C) 2023 MediaTek Inc.
* Author: Frank Wunderlich <frank-w@public-files.de>
*/
/dts-v1/;
/plugin/;
#include <dt-bindings/gpio/gpio.h>
/ {
compatible = "bananapi,bpi-r4", "mediatek,mt7988a";
};
&{/soc/mmc@11230000} {
pinctrl-names = "default", "state_uhs";
pinctrl-0 = <&mmc0_pins_sdcard>;
pinctrl-1 = <&mmc0_pins_sdcard>;
cd-gpios = <&pio 12 GPIO_ACTIVE_LOW>;
bus-width = <4>;
max-frequency = <52000000>;
cap-sd-highspeed;
vmmc-supply = <&reg_3p3v>;
vqmmc-supply = <&reg_3p3v>;
no-mmc;
#address-cells = <1>;
#size-cells = <0>;
status = "okay";
};