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

source/bootloader/u-boot-2020.01/arch/m68k/cpu/mcf547x_8x/speed.c

@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ *
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
+ */
+
+#include <common.h>
+#include <asm/processor.h>
+
+#include <asm/immap.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * get_clocks() fills in gd->cpu_clock and gd->bus_clk
+ */
+int get_clocks(void)
+{
+	gd->bus_clk = CONFIG_SYS_CLK;
+	gd->cpu_clk = (gd->bus_clk * 2);
+
+#ifdef CONFIG_SYS_I2C_FSL
+	gd->arch.i2c1_clk = gd->bus_clk;
+#endif
+
+	return (0);
+}