1 /* 2 * 3 * (C) Copyright 2000-2003 4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 5 * 6 * Copyright (C) 2004-2008 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 #include <netdev.h> 32 33 #include <asm/immap.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 volatile rcm_t *rcm = (rcm_t *) (MMAP_RCM); 40 41 udelay(1000); 42 rcm->rcr |= RCM_RCR_SOFTRST; 43 44 /* we don't return! */ 45 return 0; 46 }; 47 48 int checkcpu(void) 49 { 50 volatile ccm_t *ccm = (ccm_t *) MMAP_CCM; 51 u16 msk; 52 u16 id = 0; 53 u8 ver; 54 55 puts("CPU: "); 56 msk = (ccm->cir >> 6); 57 ver = (ccm->cir & 0x003f); 58 switch (msk) { 59 #ifdef CONFIG_MCF5301x 60 case 0x78: 61 id = 53010; 62 break; 63 case 0x77: 64 id = 53012; 65 break; 66 case 0x76: 67 id = 53015; 68 break; 69 case 0x74: 70 id = 53011; 71 break; 72 case 0x73: 73 id = 53013; 74 break; 75 #endif 76 #ifdef CONFIG_MCF532x 77 case 0x54: 78 id = 5329; 79 break; 80 case 0x59: 81 id = 5328; 82 break; 83 case 0x61: 84 id = 5327; 85 break; 86 case 0x65: 87 id = 5373; 88 break; 89 case 0x68: 90 id = 53721; 91 break; 92 case 0x69: 93 id = 5372; 94 break; 95 case 0x6B: 96 id = 5372; 97 break; 98 #endif 99 } 100 101 if (id) { 102 char buf1[32], buf2[32]; 103 104 printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk, 105 ver); 106 printf(" CPU CLK %s MHz BUS CLK %s MHz\n", 107 strmhz(buf1, gd->cpu_clk), 108 strmhz(buf2, gd->bus_clk)); 109 } 110 111 return 0; 112 }; 113 114 #if defined(CONFIG_WATCHDOG) 115 /* Called by macro WATCHDOG_RESET */ 116 void watchdog_reset(void) 117 { 118 volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG); 119 120 wdp->sr = 0x5555; /* Count register */ 121 wdp->sr = 0xAAAA; /* Count register */ 122 } 123 124 int watchdog_disable(void) 125 { 126 volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG); 127 128 /* UserManual, once the wdog is disabled, wdog cannot be re-enabled */ 129 wdp->cr |= WTM_WCR_HALTED; /* halted watchdog timer */ 130 131 puts("WATCHDOG:disabled\n"); 132 return (0); 133 } 134 135 int watchdog_init(void) 136 { 137 volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG); 138 u32 wdog_module = 0; 139 140 /* set timeout and enable watchdog */ 141 wdog_module = ((CONFIG_SYS_CLK / 1000) * CONFIG_WATCHDOG_TIMEOUT); 142 #ifdef CONFIG_M5329 143 wdp->mr = (wdog_module / 8192); 144 #else 145 wdp->mr = (wdog_module / 4096); 146 #endif 147 148 wdp->cr = WTM_WCR_EN; 149 puts("WATCHDOG:enabled\n"); 150 151 return (0); 152 } 153 #endif /* CONFIG_WATCHDOG */ 154 155 #if defined(CONFIG_MCFFEC) 156 /* Default initializations for MCFFEC controllers. To override, 157 * create a board-specific function called: 158 * int board_eth_init(bd_t *bis) 159 */ 160 161 int cpu_eth_init(bd_t *bis) 162 { 163 return mcffec_initialize(bis); 164 } 165 #endif 166