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openwrt/package/boot/uboot-mediatek/patches/002-0004-board-mediatek-add-MT7981-reference-boards.patch
Daniel Golle 537b423d9f
uboot-mediatek: update to U-Boot 2022.10 
Remove patches adding support for MT7621 which have been merged upsteam.
Patches for MT7981 and MT7986 have been merged too, but not in time to
be included in the 2022.10 release, so we have to keep carrying them
until the 2023.01 release.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2022-10-18 20:08:35 +01:00

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From 37bcf4d1acb5f7ce93fa0bd59dc313a79004ae34 Mon Sep 17 00:00:00 2001
From: Weijie Gao <weijie.gao@mediatek.com>
Date: Wed, 31 Aug 2022 19:00:25 +0800
Subject: [PATCH 04/32] board: mediatek: add MT7981 reference boards
This patch adds general board files based on MT7981 SoCs.
MT7981 uses one mmc controller for booting from both SD and eMMC, and the
pins of mmc controller are also shared with spi controller.
So three configs are need for these boot types:
1. mt7981_rfb_defconfig - SPI-NOR and SPI-NAND
2. mt7981_emmc_rfb_defconfig - eMMC only
3. mt7981_sd_rfb_defconfig - SD only
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
---
arch/arm/dts/Makefile | 3 +
arch/arm/dts/mt7981-emmc-rfb.dts | 139 +++++++++++++++++++++++
arch/arm/dts/mt7981-rfb.dts | 173 +++++++++++++++++++++++++++++
arch/arm/dts/mt7981-sd-rfb.dts | 139 +++++++++++++++++++++++
board/mediatek/mt7981/MAINTAINERS | 10 ++
board/mediatek/mt7981/Makefile | 3 +
board/mediatek/mt7981/mt7981_rfb.c | 10 ++
configs/mt7981_emmc_rfb_defconfig | 64 +++++++++++
configs/mt7981_rfb_defconfig | 69 ++++++++++++
configs/mt7981_sd_rfb_defconfig | 64 +++++++++++
include/configs/mt7981.h | 26 +++++
11 files changed, 700 insertions(+)
create mode 100644 arch/arm/dts/mt7981-emmc-rfb.dts
create mode 100644 arch/arm/dts/mt7981-rfb.dts
create mode 100644 arch/arm/dts/mt7981-sd-rfb.dts
create mode 100644 board/mediatek/mt7981/MAINTAINERS
create mode 100644 board/mediatek/mt7981/Makefile
create mode 100644 board/mediatek/mt7981/mt7981_rfb.c
create mode 100644 configs/mt7981_emmc_rfb_defconfig
create mode 100644 configs/mt7981_rfb_defconfig
create mode 100644 configs/mt7981_sd_rfb_defconfig
create mode 100644 include/configs/mt7981.h
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -1233,6 +1233,9 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += \
mt7622-bananapi-bpi-r64.dtb \
mt7623n-bananapi-bpi-r2.dtb \
mt7629-rfb.dtb \
+ mt7981-rfb.dtb \
+ mt7981-emmc-rfb.dtb \
+ mt7981-sd-rfb.dtb \
mt7986a-rfb.dtb \
mt7986b-rfb.dtb \
mt7986a-sd-rfb.dtb \
--- /dev/null
+++ b/arch/arm/dts/mt7981-emmc-rfb.dts
@@ -0,0 +1,139 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2022 MediaTek Inc.
+ * Author: Sam Shih <sam.shih@mediatek.com>
+ */
+
+/dts-v1/;
+#include "mt7981.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ model = "mt7981-rfb";
+ compatible = "mediatek,mt7981", "mediatek,mt7981-rfb";
+ chosen {
+ stdout-path = &uart0;
+ tick-timer = &timer0;
+ };
+
+ 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";
+};
+
+&uart1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart1_pins>;
+ status = "disabled";
+};
+
+&eth {
+ status = "okay";
+ mediatek,gmac-id = <0>;
+ phy-mode = "sgmii";
+ mediatek,switch = "mt7531";
+ reset-gpios = <&gpio 39 GPIO_ACTIVE_HIGH>;
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ };
+};
+
+&pinctrl {
+ spic_pins: spi1-pins-func-1 {
+ mux {
+ function = "spi";
+ groups = "spi1_1";
+ };
+ };
+
+ uart1_pins: spi1-pins-func-3 {
+ mux {
+ function = "uart";
+ groups = "uart1_2";
+ };
+ };
+
+ /* pin15 as pwm0 */
+ one_pwm_pins: one-pwm-pins {
+ mux {
+ function = "pwm";
+ groups = "pwm0_1";
+ };
+ };
+
+ /* pin15 as pwm0 and pin14 as pwm1 */
+ two_pwm_pins: two-pwm-pins {
+ mux {
+ function = "pwm";
+ groups = "pwm0_1", "pwm1_0";
+ };
+ };
+
+ /* pin15 as pwm0, pin14 as pwm1, pin7 as pwm2 */
+ three_pwm_pins: three-pwm-pins {
+ mux {
+ function = "pwm";
+ groups = "pwm0_1", "pwm1_0", "pwm2";
+ };
+ };
+
+ mmc0_pins_default: mmc0default {
+ mux {
+ function = "flash";
+ groups = "emmc_45";
+ };
+ conf-cmd-dat {
+ pins = "SPI0_CLK", "SPI0_MOSI", "SPI0_MISO",
+ "SPI0_CS", "SPI0_HOLD", "SPI0_WP",
+ "SPI1_CLK", "SPI1_MOSI", "SPI1_MISO";
+ input-enable;
+ drive-strength = <MTK_DRIVE_4mA>;
+ bias-pull-up = <MTK_PUPD_SET_R1R0_01>;
+ };
+ conf-clk {
+ pins = "SPI1_CS";
+ drive-strength = <MTK_DRIVE_6mA>;
+ bias-pull-down = <MTK_PUPD_SET_R1R0_10>;
+ };
+ conf-rst {
+ pins = "PWM0";
+ drive-strength = <MTK_DRIVE_4mA>;
+ bias-pull-up = <MTK_PUPD_SET_R1R0_01>;
+ };
+ };
+};
+
+&pwm {
+ pinctrl-names = "default";
+ pinctrl-0 = <&two_pwm_pins>;
+ status = "okay";
+};
+
+&watchdog {
+ status = "disabled";
+};
+
+&mmc0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc0_pins_default>;
+ bus-width = <8>;
+ max-frequency = <52000000>;
+ cap-mmc-highspeed;
+ cap-mmc-hw-reset;
+ vmmc-supply = <&reg_3p3v>;
+ non-removable;
+ status = "okay";
+};
--- /dev/null
+++ b/arch/arm/dts/mt7981-rfb.dts
@@ -0,0 +1,173 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2022 MediaTek Inc.
+ * Author: Sam Shih <sam.shih@mediatek.com>
+ */
+
+/dts-v1/;
+#include "mt7981.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ model = "mt7981-rfb";
+ compatible = "mediatek,mt7981", "mediatek,mt7981-rfb";
+ chosen {
+ stdout-path = &uart0;
+ tick-timer = &timer0;
+ };
+};
+
+&uart0 {
+ status = "okay";
+};
+
+&uart1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart1_pins>;
+ status = "disabled";
+};
+
+&eth {
+ status = "okay";
+ mediatek,gmac-id = <0>;
+ phy-mode = "sgmii";
+ mediatek,switch = "mt7531";
+ reset-gpios = <&gpio 39 GPIO_ACTIVE_HIGH>;
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ };
+};
+
+&pinctrl {
+ spi_flash_pins: spi0-pins-func-1 {
+ mux {
+ function = "flash";
+ groups = "spi0", "spi0_wp_hold";
+ };
+
+ conf-pu {
+ pins = "SPI0_CS", "SPI0_HOLD", "SPI0_WP";
+ drive-strength = <MTK_DRIVE_8mA>;
+ bias-pull-up = <MTK_PUPD_SET_R1R0_11>;
+ };
+
+ conf-pd {
+ pins = "SPI0_CLK", "SPI0_MOSI", "SPI0_MISO";
+ drive-strength = <MTK_DRIVE_8mA>;
+ bias-pull-down = <MTK_PUPD_SET_R1R0_11>;
+ };
+ };
+
+ spi2_flash_pins: spi2-spi2-pins {
+ mux {
+ function = "spi";
+ groups = "spi2", "spi2_wp_hold";
+ };
+
+ conf-pu {
+ pins = "SPI2_CS", "SPI2_HOLD", "SPI2_WP";
+ drive-strength = <MTK_DRIVE_8mA>;
+ bias-pull-down = <MTK_PUPD_SET_R1R0_00>;
+ };
+
+ conf-pd {
+ pins = "SPI2_CLK", "SPI2_MOSI", "SPI2_MISO";
+ drive-strength = <MTK_DRIVE_8mA>;
+ bias-pull-down = <MTK_PUPD_SET_R1R0_00>;
+ };
+ };
+
+ spic_pins: spi1-pins-func-1 {
+ mux {
+ function = "spi";
+ groups = "spi1_1";
+ };
+ };
+
+ uart1_pins: spi1-pins-func-3 {
+ mux {
+ function = "uart";
+ groups = "uart1_2";
+ };
+ };
+
+ /* pin15 as pwm0 */
+ one_pwm_pins: one-pwm-pins {
+ mux {
+ function = "pwm";
+ groups = "pwm0_1";
+ };
+ };
+
+ /* pin15 as pwm0 and pin14 as pwm1 */
+ two_pwm_pins: two-pwm-pins {
+ mux {
+ function = "pwm";
+ groups = "pwm0_1", "pwm1_0";
+ };
+ };
+
+ /* pin15 as pwm0, pin14 as pwm1, pin7 as pwm2 */
+ three_pwm_pins: three-pwm-pins {
+ mux {
+ function = "pwm";
+ groups = "pwm0_1", "pwm1_0", "pwm2";
+ };
+ };
+};
+
+&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 = <2>;
+ sample_sel = <0>;
+
+ spi_nand@0 {
+ compatible = "spi-nand";
+ reg = <0>;
+ spi-max-frequency = <52000000>;
+ };
+};
+
+&spi2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi2_flash_pins>;
+ 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>;
+ };
+};
+
+&pwm {
+ pinctrl-names = "default";
+ pinctrl-0 = <&two_pwm_pins>;
+ status = "okay";
+};
+
+&watchdog {
+ status = "disabled";
+};
--- /dev/null
+++ b/arch/arm/dts/mt7981-sd-rfb.dts
@@ -0,0 +1,139 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2022 MediaTek Inc.
+ * Author: Sam Shih <sam.shih@mediatek.com>
+ */
+
+/dts-v1/;
+#include "mt7981.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ model = "mt7981-rfb";
+ compatible = "mediatek,mt7981", "mediatek,mt7981-sd-rfb";
+ chosen {
+ stdout-path = &uart0;
+ tick-timer = &timer0;
+ };
+
+ 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";
+};
+
+&uart1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart1_pins>;
+ status = "disabled";
+};
+
+&eth {
+ status = "okay";
+ mediatek,gmac-id = <0>;
+ phy-mode = "sgmii";
+ mediatek,switch = "mt7531";
+ reset-gpios = <&gpio 39 GPIO_ACTIVE_HIGH>;
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ };
+};
+
+&pinctrl {
+ spic_pins: spi1-pins-func-1 {
+ mux {
+ function = "spi";
+ groups = "spi1_1";
+ };
+ };
+
+ uart1_pins: spi1-pins-func-3 {
+ mux {
+ function = "uart";
+ groups = "uart1_2";
+ };
+ };
+
+ /* pin15 as pwm0 */
+ one_pwm_pins: one-pwm-pins {
+ mux {
+ function = "pwm";
+ groups = "pwm0_1";
+ };
+ };
+
+ /* pin15 as pwm0 and pin14 as pwm1 */
+ two_pwm_pins: two-pwm-pins {
+ mux {
+ function = "pwm";
+ groups = "pwm0_1", "pwm1_0";
+ };
+ };
+
+ /* pin15 as pwm0, pin14 as pwm1, pin7 as pwm2 */
+ three_pwm_pins: three-pwm-pins {
+ mux {
+ function = "pwm";
+ groups = "pwm0_1", "pwm1_0", "pwm2";
+ };
+ };
+
+ mmc0_pins_default: mmc0default {
+ mux {
+ function = "flash";
+ groups = "emmc_45";
+ };
+ conf-cmd-dat {
+ pins = "SPI0_CLK", "SPI0_MOSI", "SPI0_MISO",
+ "SPI0_CS", "SPI0_HOLD", "SPI0_WP",
+ "SPI1_CLK", "SPI1_MOSI", "SPI1_MISO";
+ input-enable;
+ drive-strength = <MTK_DRIVE_4mA>;
+ bias-pull-up = <MTK_PUPD_SET_R1R0_01>;
+ };
+ conf-clk {
+ pins = "SPI1_CS";
+ drive-strength = <MTK_DRIVE_6mA>;
+ bias-pull-down = <MTK_PUPD_SET_R1R0_10>;
+ };
+ conf-rst {
+ pins = "PWM0";
+ drive-strength = <MTK_DRIVE_4mA>;
+ bias-pull-up = <MTK_PUPD_SET_R1R0_01>;
+ };
+ };
+};
+
+&pwm {
+ pinctrl-names = "default";
+ pinctrl-0 = <&two_pwm_pins>;
+ status = "okay";
+};
+
+&watchdog {
+ status = "disabled";
+};
+
+&mmc0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc0_pins_default>;
+ bus-width = <4>;
+ max-frequency = <52000000>;
+ cap-sd-highspeed;
+ r_smpl = <0>;
+ vmmc-supply = <&reg_3p3v>;
+ vqmmc-supply = <&reg_3p3v>;
+ status = "okay";
+};
--- /dev/null
+++ b/board/mediatek/mt7981/MAINTAINERS
@@ -0,0 +1,10 @@
+MT7981
+M: Sam Shih <sam.shih@mediatek.com>
+S: Maintained
+F: board/mediatek/mt7981
+F: include/configs/mt7981.h
+F: configs/mt7981_emmc_rfb_defconfig
+F: configs/mt7981_rfb_defconfig
+F: configs/mt7981_sd_rfb_defconfig
+F: configs/mt7981_spim_nand_rfb_defconfig
+F: configs/mt7981_spim_nor_rfb_defconfig
--- /dev/null
+++ b/board/mediatek/mt7981/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
+
+obj-y += mt7981_rfb.o
--- /dev/null
+++ b/board/mediatek/mt7981/mt7981_rfb.c
@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2022 MediaTek Inc.
+ * Author: Sam Shih <sam.shih@mediatek.com>
+ */
+
+int board_init(void)
+{
+ return 0;
+}
--- /dev/null
+++ b/configs/mt7981_emmc_rfb_defconfig
@@ -0,0 +1,64 @@
+CONFIG_ARM=y
+CONFIG_POSITION_INDEPENDENT=y
+CONFIG_ARCH_MEDIATEK=y
+CONFIG_SYS_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="mt7981-emmc-rfb"
+CONFIG_TARGET_MT7981=y
+CONFIG_DEBUG_UART_BASE=0x11002000
+CONFIG_DEBUG_UART_CLOCK=40000000
+CONFIG_SYS_LOAD_ADDR=0x46000000
+CONFIG_DEBUG_UART=y
+# CONFIG_AUTOBOOT is not set
+CONFIG_DEFAULT_FDT_FILE="mt7981-emmc-rfb"
+CONFIG_LOGLEVEL=7
+CONFIG_LOG=y
+CONFIG_SYS_PROMPT="MT7981> "
+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_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_ETH=y
+CONFIG_MEDIATEK_ETH=y
+CONFIG_PINCTRL=y
+CONFIG_PINCONF=y
+CONFIG_PINCTRL_MT7981=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
--- /dev/null
+++ b/configs/mt7981_rfb_defconfig
@@ -0,0 +1,69 @@
+CONFIG_ARM=y
+CONFIG_POSITION_INDEPENDENT=y
+CONFIG_ARCH_MEDIATEK=y
+CONFIG_SYS_TEXT_BASE=0x41e00000
+CONFIG_SYS_MALLOC_F_LEN=0x4000
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_DEFAULT_DEVICE_TREE="mt7981-rfb"
+CONFIG_TARGET_MT7981=y
+CONFIG_DEBUG_UART_BASE=0x11002000
+CONFIG_DEBUG_UART_CLOCK=40000000
+CONFIG_SYS_LOAD_ADDR=0x46000000
+CONFIG_DEBUG_UART=y
+# CONFIG_AUTOBOOT is not set
+CONFIG_DEFAULT_FDT_FILE="mt7981-rfb"
+CONFIG_LOGLEVEL=7
+CONFIG_LOG=y
+CONFIG_SYS_PROMPT="MT7981> "
+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_MTD=y
+CONFIG_CMD_SF_TEST=y
+CONFIG_CMD_PING=y
+CONFIG_CMD_SMC=y
+CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
+CONFIG_NET_RANDOM_ETHADDR=y
+CONFIG_REGMAP=y
+CONFIG_SYSCON=y
+CONFIG_BLK=y
+CONFIG_HAVE_BLOCK_DEVICE=y
+CONFIG_CLK=y
+# CONFIG_MMC is not set
+CONFIG_MTD=y
+CONFIG_DM_MTD=y
+CONFIG_MTD_SPI_NAND=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_SPI_FLASH_SFDP_SUPPORT=y
+CONFIG_SPI_FLASH_EON=y
+CONFIG_SPI_FLASH_GIGADEVICE=y
+CONFIG_SPI_FLASH_ISSI=y
+CONFIG_SPI_FLASH_MACRONIX=y
+CONFIG_SPI_FLASH_SPANSION=y
+CONFIG_SPI_FLASH_STMICRO=y
+CONFIG_SPI_FLASH_WINBOND=y
+CONFIG_SPI_FLASH_XMC=y
+CONFIG_SPI_FLASH_XTX=y
+CONFIG_SPI_FLASH_MTD=y
+CONFIG_PHY_FIXED=y
+CONFIG_DM_ETH=y
+CONFIG_MEDIATEK_ETH=y
+CONFIG_PINCTRL=y
+CONFIG_PINCONF=y
+CONFIG_PINCTRL_MT7981=y
+CONFIG_POWER_DOMAIN=y
+CONFIG_MTK_POWER_DOMAIN=y
+CONFIG_DM_SERIAL=y
+CONFIG_MTK_SERIAL=y
+CONFIG_SPI=y
+CONFIG_DM_SPI=y
+CONFIG_MTK_SPIM=y
+CONFIG_HEXDUMP=y
+# CONFIG_EFI_LOADER is not set
--- /dev/null
+++ b/configs/mt7981_sd_rfb_defconfig
@@ -0,0 +1,64 @@
+CONFIG_ARM=y
+CONFIG_POSITION_INDEPENDENT=y
+CONFIG_ARCH_MEDIATEK=y
+CONFIG_SYS_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="mt7981-sd-rfb"
+CONFIG_TARGET_MT7981=y
+CONFIG_DEBUG_UART_BASE=0x11002000
+CONFIG_DEBUG_UART_CLOCK=40000000
+CONFIG_SYS_LOAD_ADDR=0x46000000
+CONFIG_DEBUG_UART=y
+# CONFIG_AUTOBOOT is not set
+CONFIG_DEFAULT_FDT_FILE="mt7981-sd-rfb"
+CONFIG_LOGLEVEL=7
+CONFIG_LOG=y
+CONFIG_SYS_PROMPT="MT7981> "
+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_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_ETH=y
+CONFIG_MEDIATEK_ETH=y
+CONFIG_PINCTRL=y
+CONFIG_PINCONF=y
+CONFIG_PINCTRL_MT7981=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
--- /dev/null
+++ b/include/configs/mt7981.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Configuration for MediaTek MT7981 SoC
+ *
+ * Copyright (C) 2022 MediaTek Inc.
+ * Author: Sam Shih <sam.shih@mediatek.com>
+ */
+
+#ifndef __MT7981_H
+#define __MT7981_H
+
+#include <linux/sizes.h>
+
+#define CONFIG_SYS_NONCACHED_MEMORY SZ_1M
+#define CONFIG_SYS_MMC_ENV_DEV 0
+
+/* Uboot definition */
+#define CONFIG_SYS_UBOOT_BASE CONFIG_SYS_TEXT_BASE
+
+/* SPL -> Uboot */
+#define CONFIG_SYS_UBOOT_START CONFIG_SYS_TEXT_BASE
+
+/* DRAM */
+#define CONFIG_SYS_SDRAM_BASE 0x40000000
+
+#endif
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