From 4a442d3186b31893b4f77c6e82f63c4517a5224b Mon Sep 17 00:00:00 2001 From: TsiChungLiew Date: Thu, 16 Aug 2007 19:23:50 -0500 Subject: ColdFire: Add M5235EVB Platform for MCF523x Signed-off-by: TsiChungLiew --- cpu/mcf523x/speed.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 cpu/mcf523x/speed.c (limited to 'cpu/mcf523x/speed.c') 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 +#include + +#include + +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); +} -- cgit v1.1 From 8280f6a1c43247616b68224675188e5ccd124650 Mon Sep 17 00:00:00 2001 From: Stefan Roese Date: Sat, 18 Aug 2007 14:33:02 +0200 Subject: Coding style cleanup Signed-off-by: Stefan Roese --- cpu/mcf523x/speed.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'cpu/mcf523x/speed.c') diff --git a/cpu/mcf523x/speed.c b/cpu/mcf523x/speed.c index 509109d..247d318 100644 --- a/cpu/mcf523x/speed.c +++ b/cpu/mcf523x/speed.c @@ -41,8 +41,9 @@ int get_clocks(void) 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); } -- cgit v1.1