board: mediatek: add MT7988 reference boards
This patch adds general board files based on MT7988 SoCs.
MT7988 uses one mmc controller for booting from both SD and eMMC,
and the pins of mmc controller booting from SD are also shared with
one of spi controllers.
So two configs are need for these boot types:
1. mt7988_rfb_defconfig - SPI-NOR, SPI-NAND and eMMC
2. mt7988_sd_rfb_defconfig - SPI-NAND and SD
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index e66c32e..8f43dba 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -1341,6 +1341,8 @@
mt7986b-sd-rfb.dtb \
mt7986a-emmc-rfb.dtb \
mt7986b-emmc-rfb.dtb \
+ mt7988-rfb.dtb \
+ mt7988-sd-rfb.dtb \
mt8183-pumpkin.dtb \
mt8512-bm1-emmc.dtb \
mt8516-pumpkin.dtb \
diff --git a/arch/arm/dts/mt7988-rfb.dts b/arch/arm/dts/mt7988-rfb.dts
new file mode 100644
index 0000000..2c11428
--- /dev/null
+++ b/arch/arm/dts/mt7988-rfb.dts
@@ -0,0 +1,182 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2022 MediaTek Inc.
+ * Author: Sam Shih <sam.shih@mediatek.com>
+ */
+
+/dts-v1/;
+#include "mt7988.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+ model = "mt7988-rfb";
+ compatible = "mediatek,mt7988-rfb";
+
+ chosen {
+ stdout-path = &uart0;
+ };
+
+ memory@40000000 {
+ device_type = "memory";
+ reg = <0 0x40000000 0 0x10000000>;
+ };
+
+ reg_3p3v: regulator-3p3v {
+ compatible = "regulator-fixed";
+ regulator-name = "fixed-3.3V";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ 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;
+ };
+};
+
+&uart0 {
+ status = "okay";
+};
+
+&i2c1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c1_pins>;
+ status = "okay";
+};
+
+ð {
+ status = "okay";
+ mediatek,gmac-id = <0>;
+ phy-mode = "usxgmii";
+ mediatek,switch = "mt7988";
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ pause;
+ };
+};
+
+&pinctrl {
+ i2c1_pins: i2c1-pins {
+ mux {
+ function = "i2c";
+ groups = "i2c1_0";
+ };
+ };
+
+ pwm_pins: pwm-pins {
+ mux {
+ function = "pwm";
+ groups = "pwm0", "pwm1", "pwm2", "pwm3", "pwm4",
+ "pwm5", "pwm6", "pwm7";
+ };
+ };
+
+ spi0_pins: spi0-pins {
+ mux {
+ function = "spi";
+ groups = "spi0", "spi0_wp_hold";
+ };
+ };
+
+ spi2_pins: spi2-pins {
+ mux {
+ function = "spi";
+ groups = "spi2", "spi2_wp_hold";
+ };
+ };
+
+ mmc0_pins_default: mmc0default {
+ mux {
+ function = "flash";
+ groups = "emmc_51";
+ };
+
+ conf-cmd-dat {
+ pins = "EMMC_DATA_0", "EMMC_DATA_1", "EMMC_DATA_2",
+ "EMMC_DATA_3", "EMMC_DATA_4", "EMMC_DATA_5",
+ "EMMC_DATA_6", "EMMC_DATA_7", "EMMC_CMD";
+ input-enable;
+ };
+
+ conf-clk {
+ pins = "EMMC_CK";
+ };
+
+ conf-dsl {
+ pins = "EMMC_DSL";
+ };
+
+ conf-rst {
+ pins = "EMMC_RSTB";
+ };
+ };
+};
+
+&pwm {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm_pins>;
+ status = "okay";
+};
+
+&spi0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi0_pins>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+ must_tx;
+ enhance_timing;
+ dma_ext;
+ ipm_design;
+ support_quad;
+ tick_dly = <2>;
+ sample_sel = <0>;
+
+ spi_nand@0 {
+ compatible = "spi-nand";
+ reg = <0>;
+ spi-max-frequency = <52000000>;
+ };
+};
+
+&spi2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi2_pins>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+ must_tx;
+ enhance_timing;
+ dma_ext;
+ ipm_design;
+ support_quad;
+ tick_dly = <2>;
+ sample_sel = <0>;
+
+ spi_nor@0 {
+ compatible = "jedec,spi-nor";
+ reg = <0>;
+ spi-max-frequency = <52000000>;
+ };
+};
+
+&mmc0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc0_pins_default>;
+ max-frequency = <52000000>;
+ bus-width = <8>;
+ cap-mmc-highspeed;
+ cap-mmc-hw-reset;
+ vmmc-supply = <®_3p3v>;
+ vqmmc-supply = <®_1p8v>;
+ non-removable;
+ status = "okay";
+};
diff --git a/arch/arm/dts/mt7988-sd-rfb.dts b/arch/arm/dts/mt7988-sd-rfb.dts
new file mode 100644
index 0000000..a3df37d
--- /dev/null
+++ b/arch/arm/dts/mt7988-sd-rfb.dts
@@ -0,0 +1,134 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2022 MediaTek Inc.
+ * Author: Sam Shih <sam.shih@mediatek.com>
+ */
+
+/dts-v1/;
+#include "mt7988.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+ model = "mt7988-rfb";
+ compatible = "mediatek,mt7988-rfb", "mediatek,mt7988-sd-rfb";
+
+ chosen {
+ stdout-path = &uart0;
+ };
+
+ memory@40000000 {
+ device_type = "memory";
+ reg = <0 0x40000000 0 0x10000000>;
+ };
+
+ reg_3p3v: regulator-3p3v {
+ compatible = "regulator-fixed";
+ regulator-name = "fixed-3.3V";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+};
+
+&uart0 {
+ status = "okay";
+};
+
+&i2c1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c1_pins>;
+ status = "okay";
+};
+
+ð {
+ status = "okay";
+ mediatek,gmac-id = <0>;
+ phy-mode = "usxgmii";
+ mediatek,switch = "mt7988";
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ pause;
+ };
+};
+
+&pinctrl {
+ i2c1_pins: i2c1-pins {
+ mux {
+ function = "i2c";
+ groups = "i2c1_0";
+ };
+ };
+
+ pwm_pins: pwm-pins {
+ mux {
+ function = "pwm";
+ groups = "pwm0", "pwm1", "pwm2", "pwm3", "pwm4",
+ "pwm5", "pwm6", "pwm7";
+ };
+ };
+
+ spi0_pins: spi0-pins {
+ mux {
+ function = "spi";
+ groups = "spi0", "spi0_wp_hold";
+ };
+ };
+
+ mmc1_pins_default: mmc1default {
+ mux {
+ function = "flash";
+ groups = "emmc_45";
+ };
+
+ conf-cmd-dat {
+ pins = "SPI2_CSB", "SPI2_MISO", "SPI2_MOSI",
+ "SPI2_CLK", "SPI2_HOLD";
+ input-enable;
+ };
+
+ conf-clk {
+ pins = "SPI2_WP";
+ };
+ };
+};
+
+&pwm {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm_pins>;
+ status = "okay";
+};
+
+&spi0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi0_pins>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+ must_tx;
+ enhance_timing;
+ dma_ext;
+ ipm_design;
+ support_quad;
+ tick_dly = <2>;
+ sample_sel = <0>;
+
+ spi_nand@0 {
+ compatible = "spi-nand";
+ reg = <0>;
+ spi-max-frequency = <52000000>;
+ };
+};
+
+&mmc0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc1_pins_default>;
+ max-frequency = <52000000>;
+ bus-width = <4>;
+ cap-sd-highspeed;
+ vmmc-supply = <®_3p3v>;
+ vqmmc-supply = <®_3p3v>;
+ status = "okay";
+};