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

source/bootloader/u-boot-2020.01/board/sandbox/sandbox.c

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+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2011 The Chromium OS Authors.
+ */
+
+#include <common.h>
+#include <cpu_func.h>
+#include <cros_ec.h>
+#include <dm.h>
+#include <init.h>
+#include <led.h>
+#include <os.h>
+#include <asm/test.h>
+#include <asm/u-boot-sandbox.h>
+
+/*
+ * Pointer to initial global data area
+ *
+ * Here we initialize it.
+ */
+gd_t *gd;
+
+/* Add a simple GPIO device */
+U_BOOT_DEVICE(gpio_sandbox) = {
+	.name = "gpio_sandbox",
+};
+
+void flush_cache(unsigned long start, unsigned long size)
+{
+}
+
+#ifndef CONFIG_TIMER
+/* system timer offset in ms */
+static unsigned long sandbox_timer_offset;
+
+void timer_test_add_offset(unsigned long offset)
+{
+	sandbox_timer_offset += offset;
+}
+
+unsigned long timer_read_counter(void)
+{
+	return os_get_nsec() / 1000 + sandbox_timer_offset * 1000;
+}
+#endif
+
+int dram_init(void)
+{
+	gd->ram_size = CONFIG_SYS_SDRAM_SIZE;
+	return 0;
+}
+
+int board_init(void)
+{
+	if (IS_ENABLED(CONFIG_LED))
+		led_default_state();
+
+	return 0;
+}
+
+#ifdef CONFIG_BOARD_LATE_INIT
+int board_late_init(void)
+{
+	struct udevice *dev;
+	int ret;
+
+	ret = uclass_first_device_err(UCLASS_CROS_EC, &dev);
+	if (ret && ret != -ENODEV) {
+		/* Force console on */
+		gd->flags &= ~GD_FLG_SILENT;
+
+		printf("cros-ec communications failure %d\n", ret);
+		puts("\nPlease reset with Power+Refresh\n\n");
+		panic("Cannot init cros-ec device");
+		return -1;
+	}
+	return 0;
+}
+#endif