ColdFire: Add M5235EVB Platform for MCF523x

Signed-off-by: TsiChungLiew <Tsi-Chung.Liew@freescale.com>

1 files changed, 48 insertions, 0 deletions

diff --git a/cpu/mcf523x/speed.c b/cpu/mcf523x/speed.c
new file mode 100644
index 0000000..509109d
--- /dev/null
+++ b/cpu/mcf523x/speed.c
@@ -0,0 +1,48 @@
+/*
+ *
+ * (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 = CFG_CLK;
+	gd->cpu_clk = (gd->bus_clk * 2);
+	return (0);
+}