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

source/bootloader/u-boot-2020.01/board/microchip/mpfs_icicle/mpfs_icicle.c

@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2019 Microchip Technology Inc.
+ * Padmarao Begari <padmarao.begari@microchip.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <asm/io.h>
+
+#define MPFS_SYSREG_SOFT_RESET	((unsigned int *)0x20002088)
+
+int board_init(void)
+{
+	/* For now nothing to do here. */
+
+	return 0;
+}
+
+int board_early_init_f(void)
+{
+	unsigned int val;
+
+	/* Reset uart peripheral */
+	val = readl(MPFS_SYSREG_SOFT_RESET);
+	val = (val & ~(1u << 5u));
+	writel(val, MPFS_SYSREG_SOFT_RESET);
+
+	return 0;
+}