GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/board/intel/minnowmax/Kconfig

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+if TARGET_MINNOWMAX
+
+config SYS_BOARD
+	default "minnowmax"
+
+config SYS_VENDOR
+	default "intel"
+
+config SYS_SOC
+	default "baytrail"
+
+config SYS_CONFIG_NAME
+	default "minnowmax"
+
+config SYS_TEXT_BASE
+	default 0xfff00000
+
+config BOARD_SPECIFIC_OPTIONS # dummy
+	def_bool y
+	select X86_RESET_VECTOR
+	select INTEL_BAYTRAIL
+	select BOARD_ROMSIZE_KB_8192
+	select SPI_FLASH_STMICRO
+
+config PCIE_ECAM_BASE
+	default 0xe0000000
+
+endif

source/bootloader/u-boot-2020.01/board/intel/minnowmax/MAINTAINERS

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+CircuitCo Minnowboard Max
+M:	Simon Glass <sjg@chromium.org>
+S:	Maintained
+F:	board/intel/minnowmax
+F:	include/configs/minnowmax.h
+F:	configs/minnowmax_defconfig

source/bootloader/u-boot-2020.01/board/intel/minnowmax/Makefile

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+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright (C) 2015, Google, Inc
+
+obj-y	+= minnowmax.o start.o
+obj-$(CONFIG_GENERATE_ACPI_TABLE) += dsdt.o

source/bootloader/u-boot-2020.01/board/intel/minnowmax/acpi/mainboard.asl

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+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2016, Bin Meng <bmeng.cn@gmail.com>
+ */
+
+/* Power Button */
+Device (PWRB)
+{
+	Name(_HID, EISAID("PNP0C0C"))
+}

source/bootloader/u-boot-2020.01/board/intel/minnowmax/dsdt.asl

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+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2016, Bin Meng <bmeng.cn@gmail.com>
+ */
+
+DefinitionBlock("dsdt.aml", "DSDT", 2, "U-BOOT", "U-BOOTBL", 0x00010000)
+{
+	/* platform specific */
+	#include <asm/arch/acpi/platform.asl>
+
+	/* board specific */
+	#include "acpi/mainboard.asl"
+}

source/bootloader/u-boot-2020.01/board/intel/minnowmax/minnowmax.c

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+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2015, Google, Inc
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <asm/gpio.h>
+#include <dm/device-internal.h>
+#include <dm/uclass-internal.h>
+
+#define GPIO_BANKE_NAME		"gpioe"
+
+int misc_init_r(void)
+{
+	struct udevice *dev;
+	struct gpio_desc desc;
+	int ret;
+
+	/*
+	 * Turn on USB VBUS for the two USB ports on the board.
+	 * Each port's VBUS is controlled by a GPIO pin.
+	 */
+
+	ret = uclass_find_device_by_name(UCLASS_GPIO, GPIO_BANKE_NAME, &dev);
+	if (ret) {
+		debug("%s: GPIO %s device cannot be not found (ret=%d)\n",
+		      __func__, GPIO_BANKE_NAME, ret);
+		return ret;
+	}
+
+	ret = device_probe(dev);
+	if (ret) {
+		debug("%s: GPIO %s device probe failed (ret=%d)\n",
+		      __func__, GPIO_BANKE_NAME, ret);
+		return ret;
+	}
+
+	desc.dev = dev;
+	desc.flags = GPIOD_IS_OUT;
+
+	/* GPIO E8 controls the bottom port */
+	desc.offset = 8;
+
+	ret = dm_gpio_request(&desc, "usb_host_en0");
+	if (ret)
+		return ret;
+	dm_gpio_set_value(&desc, 1);
+
+	/* GPIO E9 controls the upper port */
+	desc.offset = 9;
+
+	ret = dm_gpio_request(&desc, "usb_host_en1");
+	if (ret)
+		return ret;
+
+	dm_gpio_set_value(&desc, 1);
+
+	return 0;
+}

source/bootloader/u-boot-2020.01/board/intel/minnowmax/start.S

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+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2015, Google, Inc
+ */
+
+.globl early_board_init
+early_board_init:
+	jmp	early_board_init_ret