[PATCH v1] arm: mediatek: add BPi-R3 Mini eMMC board support

["Lucien.Jheng" <lucienzx159@gmail.com>]

Add device tree and defconfig for the Bananapi BPi-R3 Mini, an
eMMC-only variant of the BPi-R3 board built around the MT7986A SoC.

The board dtsi enables the MT7986 eMMC controller, SPI-NAND flash,
PWM, and the on-board Airoha EN8811H 2.5G PHY via mdio.

The mt7986a_bpir3_mini_emmc_defconfig enables the drivers needed for
this variant: SPI-NAND (MTD/UBI), USB xHCI, PCIe Gen3 with NVMe, the
Airoha EN8811H PHY driver, and RNG/pstore support.

Signed-off-by: Lucien.Jheng <lucienzx159@gmail.com>
---
 arch/arm/dts/Makefile                     |   1 +
 arch/arm/dts/mt7986a-bpi-r3-mini-emmc.dts | 236 ++++++++++++++++++++++
 configs/mt7986a_bpir3_mini_emmc_defconfig | 139 +++++++++++++
 3 files changed, 376 insertions(+)
 create mode 100644 arch/arm/dts/mt7986a-bpi-r3-mini-emmc.dts
 create mode 100644 configs/mt7986a_bpir3_mini_emmc_defconfig

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 1b533721bb4..b62a4334750 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -1080,6 +1080,7 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += \
 	mt7981-sd-rfb.dtb \
 	mt7986a-bpi-r3-sd.dtb \
 	mt7986a-bpi-r3-emmc.dtb \
+	mt7986a-bpi-r3-mini-emmc.dtb \
 	mt7986a-rfb.dtb \
 	mt7986b-rfb.dtb \
 	mt7986a-sd-rfb.dtb \
diff --git a/arch/arm/dts/mt7986a-bpi-r3-mini-emmc.dts b/arch/arm/dts/mt7986a-bpi-r3-mini-emmc.dts
new file mode 100644
index 00000000000..18320b20be8
--- /dev/null
+++ b/arch/arm/dts/mt7986a-bpi-r3-mini-emmc.dts
@@ -0,0 +1,236 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+/dts-v1/;
+#include "mt7986.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/linux-event-codes.h>
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	model = "Bananapi BPi-R3 Mini";
+	compatible = "mediatek,mt7986", "mediatek,mt7986-rfb";
+
+	chosen {
+		stdout-path = &uart0;
+		tick-timer = &timer0;
+	};
+
+	memory@40000000 {
+		device_type = "memory";
+		reg = <0x40000000 0x80000000>;
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		button-reset {
+			label = "reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&pio 7 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		status_led: led-0 {
+			label = "green:status";
+			gpios = <&pio 19 GPIO_ACTIVE_HIGH>;
+		};
+
+		led-1 {
+			label = "blue:wlan2g";
+			gpios = <&pio 1 GPIO_ACTIVE_HIGH>;
+		};
+
+		led-2 {
+			label = "blue:wlan5g";
+			gpios = <&pio 2 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+	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";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+};
+
+&eth {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&mdio_pins>;
+
+	mediatek,gmac-id = <0>;
+	phy-mode = "2500base-x";
+	phy-handle = <&phy14>;
+
+	phy14: eth-phy@14 {
+		compatible = "ethernet-phy-id03a2.a411";
+		reg = <14>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&en8811_pwr_a>;
+		airoha,pnswap-rx;
+
+		reset-gpios = <&pio 49 GPIO_ACTIVE_LOW>;
+		reset-assert-us = <10000>;
+		reset-deassert-us = <20000>;
+	};
+
+	/*phy15: eth-phy@15 {
+		compatible = "ethernet-phy-id03a2.a411";
+		reg = <15>;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&en8811_pwr_b>;
+		airoha,pnswap-rx;
+
+		reset-gpios = <&pio 47 GPIO_ACTIVE_LOW>;
+		reset-assert-us = <10000>;
+		reset-deassert-us = <20000>;
+	};*/
+};
+
+&mmc0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc0_pins_default>;
+	bus-width = <8>;
+	max-frequency = <200000000>;
+	cap-mmc-highspeed;
+	cap-mmc-hw-reset;
+	vmmc-supply = <&reg_3p3v>;
+	vqmmc-supply = <&reg_1p8v>;
+	non-removable;
+	status = "okay";
+};
+
+&pio {
+	en8811_pwr_a: en8811-pwr-a {
+		pins = "GPIO_11";
+		drive-strength = <MTK_DRIVE_8mA>;
+		bias-pull-down = <MTK_PUPD_SET_R1R0_11>;
+		output-low;
+	};
+
+	en8811_pwr_b: en8811-pwr-b {
+		pins = "GPIO_12";
+		drive-strength = <MTK_DRIVE_8mA>;
+		bias-pull-down = <MTK_PUPD_SET_R1R0_11>;
+		output-low;
+	};
+
+	mdio_pins: mdio-pins {
+		mux {
+			function = "eth";
+			groups = "mdc_mdio";
+		};
+	};
+
+	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;
+			drive-strength = <MTK_DRIVE_4mA>;
+			bias-pull-up = <MTK_PUPD_SET_R1R0_01>;
+		};
+
+		conf-clk {
+			pins = "EMMC_CK";
+			drive-strength = <MTK_DRIVE_6mA>;
+			bias-pull-down = <MTK_PUPD_SET_R1R0_10>;
+		};
+
+		conf-dsl {
+			pins = "EMMC_DSL";
+			bias-pull-down = <MTK_PUPD_SET_R1R0_10>;
+		};
+
+		conf-rst {
+			pins = "EMMC_RSTB";
+			drive-strength = <MTK_DRIVE_4mA>;
+			bias-pull-up = <MTK_PUPD_SET_R1R0_01>;
+		};
+	};
+
+	spi_flash_pins: spi0-pins-func-1 {
+		mux {
+			function = "flash";
+			groups = "spi0", "spi0_wp_hold";
+		};
+
+		conf-pu {
+			pins = "SPI2_CS", "SPI2_HOLD", "SPI2_WP";
+			drive-strength = <MTK_DRIVE_8mA>;
+			bias-pull-up = <MTK_PUPD_SET_R1R0_11>;
+		};
+
+		conf-pd {
+			pins = "SPI2_CLK", "SPI2_MOSI", "SPI2_MISO";
+			drive-strength = <MTK_DRIVE_8mA>;
+			bias-pull-down = <MTK_PUPD_SET_R1R0_11>;
+		};
+	};
+
+	pwm_pins: pwm0-pins-func-1 {
+		mux {
+			function = "pwm";
+			groups = "pwm0";
+		};
+	};
+};
+
+&pwm {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm_pins>;
+	status = "okay";
+};
+
+&spi0 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi_flash_pins>;
+	status = "okay";
+	must_tx;
+	enhance_timing;
+	dma_ext;
+	ipm_design;
+	support_quad;
+	tick_dly = <1>;
+	sample_sel = <0>;
+
+	spi_nand@0 {
+		compatible = "spi-nand";
+		reg = <0>;
+		spi-max-frequency = <52000000>;
+	};
+
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&watchdog {
+	status = "disabled";
+};
diff --git a/configs/mt7986a_bpir3_mini_emmc_defconfig b/configs/mt7986a_bpir3_mini_emmc_defconfig
new file mode 100644
index 00000000000..411ad11d6a7
--- /dev/null
+++ b/configs/mt7986a_bpir3_mini_emmc_defconfig
@@ -0,0 +1,139 @@
+CONFIG_ARM=y
+CONFIG_ARM_SMCCC=y
+CONFIG_SYS_HAS_NONCACHED_MEMORY=y
+CONFIG_POSITION_INDEPENDENT=y
+CONFIG_ARCH_MEDIATEK=y
+CONFIG_TEXT_BASE=0x41e00000
+CONFIG_SYS_MALLOC_F_LEN=0x4000
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_ENV_SIZE=0x80000
+CONFIG_ENV_OFFSET=0x300000
+CONFIG_DEFAULT_DEVICE_TREE="mt7986a-bpi-r3-mini-emmc"
+CONFIG_TARGET_MT7986=y
+CONFIG_DEBUG_UART_BASE=0x11002000
+CONFIG_DEBUG_UART_CLOCK=40000000
+CONFIG_SYS_LOAD_ADDR=0x46000000
+CONFIG_DEBUG_UART=y
+CONFIG_DEFAULT_FDT_FILE="mt7986a-bpi-r3-mini-emmc"
+CONFIG_LOGLEVEL=7
+CONFIG_LOG=y
+CONFIG_SYS_PROMPT="BPI-R3M> "
+CONFIG_SYS_CBSIZE=512
+CONFIG_SYS_PBSIZE=1049
+# CONFIG_BOOTM_NETBSD is not set
+# CONFIG_BOOTM_PLAN9 is not set
+# CONFIG_BOOTM_RTEMS is not set
+# CONFIG_BOOTM_VXWORKS is not set
+# CONFIG_CMD_ELF is not set
+# CONFIG_CMD_UNLZ4 is not set
+# CONFIG_CMD_UNZIP is not set
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_GPT=y
+CONFIG_CMD_GPT_RENAME=y
+CONFIG_CMD_LSBLK=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_PART=y
+CONFIG_CMD_READ=y
+CONFIG_CMD_PING=y
+CONFIG_CMD_SMC=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_EXT4=y
+CONFIG_CMD_FS_GENERIC=y
+CONFIG_PARTITION_TYPE_GUID=y
+CONFIG_ENV_OVERWRITE=y
+CONFIG_ENV_IS_IN_MMC=y
+CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
+CONFIG_NET_RANDOM_ETHADDR=y
+CONFIG_REGMAP=y
+CONFIG_SYSCON=y
+CONFIG_CLK=y
+CONFIG_MMC_HS200_SUPPORT=y
+CONFIG_MMC_MTK=y
+CONFIG_PHY_FIXED=y
+CONFIG_DM_MDIO=y
+CONFIG_MEDIATEK_ETH=y
+CONFIG_PINCTRL=y
+CONFIG_PINCONF=y
+CONFIG_PINCTRL_MT7986=y
+CONFIG_POWER_DOMAIN=y
+CONFIG_MTK_POWER_DOMAIN=y
+CONFIG_DM_REGULATOR=y
+CONFIG_DM_REGULATOR_FIXED=y
+CONFIG_DM_SERIAL=y
+CONFIG_MTK_SERIAL=y
+CONFIG_FAT_WRITE=y
+CONFIG_HEXDUMP=y
+# CONFIG_EFI_LOADER is not set
+CONFIG_LMB_MAX_REGIONS=64
+
+CONFIG_AUTOBOOT=y
+#CONFIG_BOOTDELAY=2
+
+CONFIG_FIT=y
+CONFIG_ENV_USE_DEFAULT_ENV_TEXT_FILE=y
+CONFIG_ENV_DEFAULT_ENV_TEXT_FILE="uEnv_r3.txt"
+CONFIG_HUSH_PARSER=y
+
+CONFIG_MTD=y
+CONFIG_DM_MTD=y
+CONFIG_MTD_UBI=y
+CONFIG_CMD_UBI=y
+CONFIG_CMD_UBIFS=y
+CONFIG_SPI=y
+CONFIG_DM_SPI=y
+CONFIG_MTD_SPI_NAND=y
+CONFIG_MTK_SPIM=y
+#CONFIG_MTK_SPI_NAND=y
+#CONFIG_MTK_SPI_NAND_MTD=y
+#CONFIG_MTK_SNOR=y
+#CONFIG_MTK_SNFI_SPI=y
+CONFIG_SPI_FLASH=y
+CONFIG_SPI_FLASH_MTD=y
+CONFIG_SPI_FLASH_WINBOND=y
+CONFIG_CMD_MTD=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_CMD_SF=y
+#CONFIG_MTD_RAW_NAND=y
+#CONFIG_CMD_NAND=y
+#CONFIG_CMD_NAND_TRIMFFS=y
+CONFIG_ENABLE_NAND_NMBM=y
+CONFIG_MTDIDS_DEFAULT="nmbm0=nmbm0"
+CONFIG_MTDPARTS_DEFAULT="nmbm0:1024k(bl2),512k(u-boot-env),2048k(factory),2048k(fip),65536k(ubi)"
+CONFIG_PHY=y
+CONFIG_PHY_MTK_TPHY=y
+CONFIG_DM_USB=y
+CONFIG_USB=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_XHCI_MTK=y
+CONFIG_CMD_USB=y
+CONFIG_USB_STORAGE=y
+CONFIG_CMD_ASKENV=y
+CONFIG_CMD_STRINGS=y
+CONFIG_OF_LIBFDT_OVERLAY=y
+CONFIG_CMD_BOOTMENU=y
+CONFIG_SUPPORT_EMMC_BOOT=y
+
+CONFIG_FS_LOADER=y
+CONFIG_PHY_AIROHA=y
+CONFIG_PHY_AIROHA_EN8811=y
+CONFIG_DM_ETH_PHY=y
+CONFIG_PHY_AIROHA_FW_BUILTIN=y
+CONFIG_PHY_ETHERNET_ID=y
+
+CONFIG_PCI=y
+CONFIG_PCIE_MEDIATEK_GEN3=y
+CONFIG_CMD_PCI=y
+CONFIG_NVME_PCI=y
+CONFIG_NVME=y
+CONFIG_CMD_CACHE=y
+
+CONFIG_CMD_PSTORE=y
+CONFIG_CMD_PSTORE_MEM_ADDR=0x42ff0000
+CONFIG_CMD_PSTORE_RECORD_SIZE=0x1000
+#CONFIG_CMD_PSTORE_CONSOLE_SIZE=0x1000
+#CONFIG_CMD_PSTORE_FTRACE_SIZE=0x0
+#CONFIG_CMD_PSTORE_PMSG_SIZE=0x1000
+
+CONFIG_DM_RNG=y
+CONFIG_RNG_MTK_V2=y
+CONFIG_CMD_RNG=y
--
2.34.1