Hi Lucien,
it seems you try to upstream the DTS from my repo [1] (i did not do it
because of OF_UPSTREAM discussion/requirement) only with minor cleanup
(e.g. dropped my attempt to define regulators as such - was not working
in my tests but imho more logical).
But it would be great if you mention me as Co-developed-By or similar.
Not sure if upstream-discussion is still valid (new downstream DTS were
rejected there), it needed many other driver patches and some hacks at
DT level (my last state [2]).
btw. compatible should be changed to upstream one [3]
regards Frank
[1]
https://github.com/frank-w/u-boot/blob/2024-04-bpi-r3mini/arch/arm/dts/mt7986a-bpi-r3-mini.dts
latest version:
https://github.com/frank-w/u-boot/blob/2026-07-bpi/arch/arm/dts/mt7986a-bpi-r3-mini.dts
[2] https://github.com/frank-w/u-boot/commits/2026-01-bpi-ofupstream/
[3]
https://github.com/frank-w/BPI-Router-Linux/blob/7.3-rc/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-mini.dts#L21
Am 06.09.26 um 14:07 schrieb Lucien.Jheng:
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 <[email protected]>
---
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;
+ };
+};
+
+ð {
+ 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 = <®_3p3v>;
+ vqmmc-supply = <®_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
