diff options
Diffstat (limited to 'cpu/mpc5xxx/speed.c')
-rw-r--r-- | cpu/mpc5xxx/speed.c | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/cpu/mpc5xxx/speed.c b/cpu/mpc5xxx/speed.c deleted file mode 100644 index 8027d3e..0000000 --- a/cpu/mpc5xxx/speed.c +++ /dev/null @@ -1,94 +0,0 @@ -/* - * (C) Copyright 2000-2002 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * 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 <mpc5xxx.h> -#include <asm/processor.h> - -DECLARE_GLOBAL_DATA_PTR; - -/* ------------------------------------------------------------------------- */ - -/* Bus-to-Core Multipliers */ - -static int bus2core[] = { - 3, 2, 2, 2, 4, 4, 5, 9, - 6, 11, 8, 10, 3, 12, 7, 0, - 6, 5, 13, 2, 14, 4, 15, 9, - 0, 11, 8, 10, 16, 12, 7, 0 -}; -/* ------------------------------------------------------------------------- */ - -/* - * - */ - -int get_clocks (void) -{ - ulong val, vco; - -#if !defined(CONFIG_SYS_MPC5XXX_CLKIN) -#error clock measuring not implemented yet - define CONFIG_SYS_MPC5XXX_CLKIN -#endif - - val = *(vu_long *)MPC5XXX_CDM_PORCFG; - if (val & (1 << 6)) { - vco = CONFIG_SYS_MPC5XXX_CLKIN * 12; - } else { - vco = CONFIG_SYS_MPC5XXX_CLKIN * 16; - } - if (val & (1 << 5)) { - gd->bus_clk = vco / 8; - } else { - gd->bus_clk = vco / 4; - } - gd->cpu_clk = gd->bus_clk * bus2core[val & 0x1f] / 2; - - val = *(vu_long *)MPC5XXX_CDM_CFG; - if (val & (1 << 8)) { - gd->ipb_clk = gd->bus_clk / 2; - } else { - gd->ipb_clk = gd->bus_clk; - } - switch (val & 3) { - case 0: gd->pci_clk = gd->ipb_clk; break; - case 1: gd->pci_clk = gd->ipb_clk / 2; break; - default: gd->pci_clk = gd->bus_clk / 4; break; - } - - return (0); -} - -int prt_mpc5xxx_clks (void) -{ - char buf1[32], buf2[32], buf3[32]; - - printf (" Bus %s MHz, IPB %s MHz, PCI %s MHz\n", - strmhz(buf1, gd->bus_clk), - strmhz(buf2, gd->ipb_clk), - strmhz(buf3, gd->pci_clk) - ); - return (0); -} - -/* ------------------------------------------------------------------------- */ |