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 * SPDX-License-Identifier: GPL-2.0+ 10 */ 11 12 #include <common.h> 13 #include <watchdog.h> 14 #include <command.h> 15 #include <netdev.h> 16 17 #include <asm/immap.h> 18 #include <asm/io.h> 19 20 DECLARE_GLOBAL_DATA_PTR; 21 22 int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 23 { 24 rcm_t *rcm = (rcm_t *) (MMAP_RCM); 25 26 udelay(1000); 27 setbits_8(&rcm->rcr, RCM_RCR_SOFTRST); 28 29 /* we don't return! */ 30 return 0; 31 }; 32 33 #if defined(CONFIG_DISPLAY_CPUINFO) 34 int print_cpuinfo(void) 35 { 36 ccm_t *ccm = (ccm_t *) MMAP_CCM; 37 u16 msk; 38 u16 id = 0; 39 u8 ver; 40 41 puts("CPU: "); 42 msk = (in_be16(&ccm->cir) >> 6); 43 ver = (in_be16(&ccm->cir) & 0x003f); 44 switch (msk) { 45 #ifdef CONFIG_MCF5301x 46 case 0x78: 47 id = 53010; 48 break; 49 case 0x77: 50 id = 53012; 51 break; 52 case 0x76: 53 id = 53015; 54 break; 55 case 0x74: 56 id = 53011; 57 break; 58 case 0x73: 59 id = 53013; 60 break; 61 #endif 62 #ifdef CONFIG_MCF532x 63 case 0x54: 64 id = 5329; 65 break; 66 case 0x59: 67 id = 5328; 68 break; 69 case 0x61: 70 id = 5327; 71 break; 72 case 0x65: 73 id = 5373; 74 break; 75 case 0x68: 76 id = 53721; 77 break; 78 case 0x69: 79 id = 5372; 80 break; 81 case 0x6B: 82 id = 5372; 83 break; 84 #endif 85 } 86 87 if (id) { 88 char buf1[32], buf2[32]; 89 90 printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk, 91 ver); 92 printf(" CPU CLK %s MHz BUS CLK %s MHz\n", 93 strmhz(buf1, gd->cpu_clk), 94 strmhz(buf2, gd->bus_clk)); 95 } 96 97 return 0; 98 }; 99 #endif /* CONFIG_DISPLAY_CPUINFO */ 100 101 #if defined(CONFIG_WATCHDOG) 102 /* Called by macro WATCHDOG_RESET */ 103 void watchdog_reset(void) 104 { 105 wdog_t *wdp = (wdog_t *) (MMAP_WDOG); 106 107 /* Count register */ 108 out_be16(&wdp->sr, 0x5555); 109 out_be16(&wdp->sr, 0xaaaa); 110 } 111 112 int watchdog_disable(void) 113 { 114 wdog_t *wdp = (wdog_t *) (MMAP_WDOG); 115 116 /* UserManual, once the wdog is disabled, wdog cannot be re-enabled */ 117 /* halted watchdog timer */ 118 setbits_be16(&wdp->cr, WTM_WCR_HALTED); 119 120 puts("WATCHDOG:disabled\n"); 121 return (0); 122 } 123 124 int watchdog_init(void) 125 { 126 wdog_t *wdp = (wdog_t *) (MMAP_WDOG); 127 u32 wdog_module = 0; 128 129 /* set timeout and enable watchdog */ 130 wdog_module = ((CONFIG_SYS_CLK / 1000) * CONFIG_WATCHDOG_TIMEOUT); 131 #ifdef CONFIG_M5329 132 out_be16(&wdp->mr, wdog_module / 8192); 133 #else 134 out_be16(&wdp->mr, wdog_module / 4096); 135 #endif 136 137 out_be16(&wdp->cr, WTM_WCR_EN); 138 puts("WATCHDOG:enabled\n"); 139 140 return (0); 141 } 142 #endif /* CONFIG_WATCHDOG */ 143 144 #if defined(CONFIG_MCFFEC) 145 /* Default initializations for MCFFEC controllers. To override, 146 * create a board-specific function called: 147 * int board_eth_init(bd_t *bis) 148 */ 149 150 int cpu_eth_init(bd_t *bis) 151 { 152 return mcffec_initialize(bis); 153 } 154 #endif 155