1 /* 2 * 3 * (C) Copyright 2000-2003 4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 5 * 6 * Copyright (C) 2004-2007 Freescale Semiconductor, Inc. 7 * TsiChung Liew (Tsi-Chung.Liew@freescale.com) 8 * 9 * See file CREDITS for list of people who contributed to this 10 * project. 11 * 12 * This program is free software; you can redistribute it and/or 13 * modify it under the terms of the GNU General Public License as 14 * published by the Free Software Foundation; either version 2 of 15 * the License, or (at your option) any later version. 16 * 17 * This program is distributed in the hope that it will be useful, 18 * but WITHOUT ANY WARRANTY; without even the implied warranty of 19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20 * GNU General Public License for more details. 21 * 22 * You should have received a copy of the GNU General Public License 23 * along with this program; if not, write to the Free Software 24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 25 * MA 02111-1307 USA 26 */ 27 28 #include <common.h> 29 #include <watchdog.h> 30 #include <command.h> 31 32 #include <asm/immap.h> 33 34 DECLARE_GLOBAL_DATA_PTR; 35 36 int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[]) 37 { 38 volatile rcm_t *rcm = (rcm_t *) (MMAP_RCM); 39 udelay(1000); 40 rcm->rcr |= RCM_RCR_SOFTRST; 41 42 /* we don't return! */ 43 return 0; 44 }; 45 46 int checkcpu(void) 47 { 48 volatile ccm_t *ccm = (ccm_t *) MMAP_CCM; 49 u16 msk; 50 u16 id = 0; 51 u8 ver; 52 53 puts("CPU: "); 54 msk = (ccm->cir >> 6); 55 ver = (ccm->cir & 0x003f); 56 switch (msk) { 57 case 0x6c: 58 id = 52277; 59 break; 60 } 61 62 if (id) { 63 char buf1[32], buf2[32], buf3[32]; 64 65 printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk, 66 ver); 67 printf(" CPU CLK %s MHz BUS CLK %s MHz FLB CLK %s MHz\n", 68 strmhz(buf1, gd->cpu_clk), 69 strmhz(buf2, gd->bus_clk), 70 strmhz(buf3, gd->flb_clk)); 71 printf(" INP CLK %s MHz VCO CLK %s MHz\n", 72 strmhz(buf1, gd->inp_clk), 73 strmhz(buf2, gd->vco_clk)); 74 } 75 76 return 0; 77 } 78