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author | Peter Tyser <ptyser@xes-inc.com> | 2010-04-12 22:28:12 -0500 |
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committer | Wolfgang Denk <wd@denx.de> | 2010-04-13 09:13:24 +0200 |
commit | a4145534851bf74619cb373a942613a74547bb82 (patch) | |
tree | 653ca8e04cad5da1eecac601b77f1f9b9cfd5fc5 /arch/m68k/cpu/mcf523x/speed.c | |
parent | 84ad688473bec2875e171b71040eb9e033c6c206 (diff) | |
download | u-boot-imx-a4145534851bf74619cb373a942613a74547bb82.zip u-boot-imx-a4145534851bf74619cb373a942613a74547bb82.tar.gz u-boot-imx-a4145534851bf74619cb373a942613a74547bb82.tar.bz2 |
m68k: Move cpu/$CPU to arch/m68k/cpu/$CPU
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'arch/m68k/cpu/mcf523x/speed.c')
-rw-r--r-- | arch/m68k/cpu/mcf523x/speed.c | 53 |
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); +} |