diff options
Diffstat (limited to 'arch/ppc/cpu/mpc5xx/speed.c')
-rw-r--r-- | arch/ppc/cpu/mpc5xx/speed.c | 67 |
1 files changed, 0 insertions, 67 deletions
diff --git a/arch/ppc/cpu/mpc5xx/speed.c b/arch/ppc/cpu/mpc5xx/speed.c deleted file mode 100644 index ea5c1de..0000000 --- a/arch/ppc/cpu/mpc5xx/speed.c +++ /dev/null @@ -1,67 +0,0 @@ -/* - * (C) Copyright 2003 - * Martin Winistoerfer, martinwinistoerfer@gmx.ch. - * - * 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, - */ - -/* - * File: speed.c - * - * Discription: Provides cpu speed calculation - * - */ - -#include <common.h> -#include <mpc5xx.h> -#include <asm/processor.h> - -DECLARE_GLOBAL_DATA_PTR; - -/* - * Get cpu and bus clock - */ -int get_clocks (void) -{ - volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; - -#ifndef CONFIG_5xx_GCLK_FREQ - uint divf = (immr->im_clkrst.car_plprcr & PLPRCR_DIVF_MSK); - uint mf = ((immr->im_clkrst.car_plprcr & PLPRCR_MF_MSK) >> PLPRCR_MF_SHIFT); - ulong vcoout; - - vcoout = (CONFIG_SYS_OSC_CLK / (divf + 1)) * (mf + 1) * 2; - if(immr->im_clkrst.car_plprcr & PLPRCR_CSRC_MSK) { - gd->cpu_clk = vcoout / (2^(((immr->im_clkrst.car_sccr & SCCR_DFNL_MSK) >> SCCR_DFNL_SHIFT) + 1)); - } else { - gd->cpu_clk = vcoout / (2^(immr->im_clkrst.car_sccr & SCCR_DFNH_MSK)); - } - -#else /* CONFIG_5xx_GCLK_FREQ */ - gd->bus_clk = CONFIG_5xx_GCLK_FREQ; -#endif /* CONFIG_5xx_GCLK_FREQ */ - - if ((immr->im_clkrst.car_sccr & SCCR_EBDF11) == 0) { - /* No Bus Divider active */ - gd->bus_clk = gd->cpu_clk; - } else { - /* CLKOUT is GCLK / 2 */ - gd->bus_clk = gd->cpu_clk / 2; - } - return (0); -} |