1 /* 2 * 3 * (C) Copyright 2000-2003 4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 5 * 6 * Copyright (C) 2004-2008, 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 #include <netdev.h> 32 33 #include <asm/immap.h> 34 #include <asm/io.h> 35 36 DECLARE_GLOBAL_DATA_PTR; 37 38 int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 39 { 40 rcm_t *rcm = (rcm_t *) (MMAP_RCM); 41 42 udelay(1000); 43 setbits_8(&rcm->rcr, RCM_RCR_SOFTRST); 44 45 /* we don't return! */ 46 return 0; 47 }; 48 49 int checkcpu(void) 50 { 51 ccm_t *ccm = (ccm_t *) MMAP_CCM; 52 u16 msk; 53 u16 id = 0; 54 u8 ver; 55 56 puts("CPU: "); 57 msk = (in_be16(&ccm->cir) >> 6); 58 ver = (in_be16(&ccm->cir) & 0x003f); 59 switch (msk) { 60 #ifdef CONFIG_MCF5301x 61 case 0x78: 62 id = 53010; 63 break; 64 case 0x77: 65 id = 53012; 66 break; 67 case 0x76: 68 id = 53015; 69 break; 70 case 0x74: 71 id = 53011; 72 break; 73 case 0x73: 74 id = 53013; 75 break; 76 #endif 77 #ifdef CONFIG_MCF532x 78 case 0x54: 79 id = 5329; 80 break; 81 case 0x59: 82 id = 5328; 83 break; 84 case 0x61: 85 id = 5327; 86 break; 87 case 0x65: 88 id = 5373; 89 break; 90 case 0x68: 91 id = 53721; 92 break; 93 case 0x69: 94 id = 5372; 95 break; 96 case 0x6B: 97 id = 5372; 98 break; 99 #endif 100 } 101 102 if (id) { 103 char buf1[32], buf2[32]; 104 105 printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk, 106 ver); 107 printf(" CPU CLK %s MHz BUS CLK %s MHz\n", 108 strmhz(buf1, gd->cpu_clk), 109 strmhz(buf2, gd->bus_clk)); 110 } 111 112 return 0; 113 }; 114 115 #if defined(CONFIG_WATCHDOG) 116 /* Called by macro WATCHDOG_RESET */ 117 void watchdog_reset(void) 118 { 119 wdog_t *wdp = (wdog_t *) (MMAP_WDOG); 120 121 /* Count register */ 122 out_be16(&wdp->sr, 0x5555); 123 out_be16(&wdp->sr, 0xaaaa); 124 } 125 126 int watchdog_disable(void) 127 { 128 wdog_t *wdp = (wdog_t *) (MMAP_WDOG); 129 130 /* UserManual, once the wdog is disabled, wdog cannot be re-enabled */ 131 /* halted watchdog timer */ 132 setbits_be16(&wdp->cr, WTM_WCR_HALTED); 133 134 puts("WATCHDOG:disabled\n"); 135 return (0); 136 } 137 138 int watchdog_init(void) 139 { 140 wdog_t *wdp = (wdog_t *) (MMAP_WDOG); 141 u32 wdog_module = 0; 142 143 /* set timeout and enable watchdog */ 144 wdog_module = ((CONFIG_SYS_CLK / 1000) * CONFIG_WATCHDOG_TIMEOUT); 145 #ifdef CONFIG_M5329 146 out_be16(&wdp->mr, wdog_module / 8192); 147 #else 148 out_be16(&wdp->mr, wdog_module / 4096); 149 #endif 150 151 out_be16(&wdp->cr, WTM_WCR_EN); 152 puts("WATCHDOG:enabled\n"); 153 154 return (0); 155 } 156 #endif /* CONFIG_WATCHDOG */ 157 158 #if defined(CONFIG_MCFFEC) 159 /* Default initializations for MCFFEC controllers. To override, 160 * create a board-specific function called: 161 * int board_eth_init(bd_t *bis) 162 */ 163 164 int cpu_eth_init(bd_t *bis) 165 { 166 return mcffec_initialize(bis); 167 } 168 #endif 169