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authorMinkyu Kang <mk7.kang@samsung.com>2010-04-19 10:26:18 +0900
committerMinkyu Kang <mk7.kang@samsung.com>2010-04-19 10:26:18 +0900
commit83653121d7382fccfe329cb732f77f116341ef1d (patch)
tree0b1ce6764252af15dfb2614372de98a44a7ec61f /arch/m68k/cpu/mcf523x/speed.c
parent0f1f21a345e02a68ec16f7ab9e7dc687f9276089 (diff)
parent07739bcef5da07cc4a4edef8b91014ccc332eda3 (diff)
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Merge branch 'master' of git://git.denx.de/u-boot-arm
Conflicts: cpu/arm1176/cpu.c cpu/arm1176/start.S cpu/arm_cortexa8/s5pc1xx/Makefile cpu/arm_cortexa8/s5pc1xx/clock.c drivers/serial/serial_s5p.c include/asm-arm/arch-s5pc1xx/clk.h include/asm-arm/arch-s5pc1xx/gpio.h include/asm-arm/arch-s5pc1xx/uart.h Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Diffstat (limited to 'arch/m68k/cpu/mcf523x/speed.c')
-rw-r--r--arch/m68k/cpu/mcf523x/speed.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/arch/m68k/cpu/mcf523x/speed.c b/arch/m68k/cpu/mcf523x/speed.c
new file mode 100644
index 0000000..6096ba4
--- /dev/null
+++ b/arch/m68k/cpu/mcf523x/speed.c
@@ -0,0 +1,53 @@
+/*
+ *
+ * (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)
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#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)
+{
+ volatile pll_t *pll = (volatile pll_t *)(MMAP_PLL);
+
+ pll->syncr = PLL_SYNCR_MFD(1);
+
+ while (!(pll->synsr & PLL_SYNSR_LOCK));
+
+ gd->bus_clk = CONFIG_SYS_CLK;
+ gd->cpu_clk = (gd->bus_clk * 2);
+
+#ifdef CONFIG_FSL_I2C
+ gd->i2c1_clk = gd->bus_clk;
+#endif
+
+ return (0);
+}