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

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>

diff --git a/arch/arm64/boot/dts/mediatek/Makefile b/arch/arm64/boot/dts/mediatek/Makefile
index 8d638976a2aff446b4a8adfa4e2b9a4e529473b6..2d280511994363403006a4c5b527628eed7d37e0 100644 (file)
--- a/arch/arm64/boot/dts/mediatek/Makefile
+++ b/arch/arm64/boot/dts/mediatek/Makefile
@@ -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 := -@

diff --git a/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-emmc.dtso b/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-emmc.dtso
new file mode 100644 (file)
index 0000000..3e320b2
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-emmc.dtso
@@ -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";
+};
+

diff --git a/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-sd.dtso b/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-sd.dtso
new file mode 100644 (file)
index 0000000..663c634
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4-sd.dtso
@@ -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";
+};
+