@@ -1230,6 +1230,9 @@ 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 \
new file mode 100644
@@ -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";
+};
+
+ð {
+ 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 = <®_3p3v>;
+ non-removable;
+ status = "okay";
+};
new file mode 100644
@@ -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";
+};
+
+ð {
+ 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";
+};
new file mode 100644
@@ -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";
+};
+
+ð {
+ 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 = <®_3p3v>;
+ vqmmc-supply = <®_3p3v>;
+ status = "okay";
+};
new file mode 100644
@@ -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
new file mode 100644
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
+
+obj-y += mt7981_rfb.o
new file mode 100644
@@ -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;
+}
new file mode 100644
@@ -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
new file mode 100644
@@ -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
new file mode 100644
@@ -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
new file mode 100644
@@ -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