Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / arch / m68k / cpu / mcf523x / speed.c

diff --git a/qemu/roms/u-boot/arch/m68k/cpu/mcf523x/speed.c b/qemu/roms/u-boot/arch/m68k/cpu/mcf523x/speed.c
new file mode 100644 (file)
index 0000000..a4aa05b
--- /dev/null
+++ b/qemu/roms/u-boot/arch/m68k/cpu/mcf523x/speed.c
@@ -0,0 +1,39 @@
+/*
+ *
+ * (C) Copyright 2000-2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/processor.h>
+
+#include <asm/immap.h>
+#include <asm/io.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+/*
+ * get_clocks() fills in gd->cpu_clock and gd->bus_clk
+ */
+int get_clocks(void)
+{
+       pll_t *pll = (pll_t *)(MMAP_PLL);
+
+       out_be32(&pll->syncr, PLL_SYNCR_MFD(1));
+
+       while (!(in_be32(&pll->synsr) & PLL_SYNSR_LOCK))
+               ;
+
+       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);
+}