1 /* 2 * 3 * (C) Copyright 2000-2003 4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 5 * 6 * Copyright (C) 2004-2007, 2012 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 #include <asm/io.h> 34 35 DECLARE_GLOBAL_DATA_PTR; 36 37 int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 38 { 39 rcm_t *rcm = (rcm_t *) (MMAP_RCM); 40 udelay(1000); 41 setbits_8(&rcm->rcr, RCM_RCR_SOFTRST); 42 43 /* we don't return! */ 44 return 0; 45 }; 46 47 int checkcpu(void) 48 { 49 ccm_t *ccm = (ccm_t *) MMAP_CCM; 50 u16 msk; 51 u16 id = 0; 52 u8 ver; 53 54 puts("CPU: "); 55 msk = (in_be16(&ccm->cir) >> 6); 56 ver = (in_be16(&ccm->cir) & 0x003f); 57 switch (msk) { 58 case 0x6c: 59 id = 52277; 60 break; 61 } 62 63 if (id) { 64 char buf1[32], buf2[32], buf3[32]; 65 66 printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk, 67 ver); 68 printf(" CPU CLK %s MHz BUS CLK %s MHz FLB CLK %s MHz\n", 69 strmhz(buf1, gd->cpu_clk), 70 strmhz(buf2, gd->bus_clk), 71 strmhz(buf3, gd->flb_clk)); 72 printf(" INP CLK %s MHz VCO CLK %s MHz\n", 73 strmhz(buf1, gd->inp_clk), 74 strmhz(buf2, gd->vco_clk)); 75 } 76 77 return 0; 78 } 79