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 * 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 gptmr_t *gptmr = (gptmr_t *) (MMAP_GPTMR); 25 26 out_be16(&gptmr->pre, 10); 27 out_be16(&gptmr->cnt, 1); 28 29 /* enable watchdog, set timeout to 0 and wait */ 30 out_8(&gptmr->mode, GPT_TMS_SGPIO); 31 out_8(&gptmr->ctrl, GPT_CTRL_WDEN | GPT_CTRL_CE); 32 33 /* we don't return! */ 34 return 1; 35 }; 36 37 #if defined(CONFIG_DISPLAY_CPUINFO) 38 int print_cpuinfo(void) 39 { 40 siu_t *siu = (siu_t *) MMAP_SIU; 41 u16 id = 0; 42 43 puts("CPU: "); 44 45 switch ((in_be32(&siu->jtagid) & 0x000FF000) >> 12) { 46 case 0x0C: 47 id = 5485; 48 break; 49 case 0x0D: 50 id = 5484; 51 break; 52 case 0x0E: 53 id = 5483; 54 break; 55 case 0x0F: 56 id = 5482; 57 break; 58 case 0x10: 59 id = 5481; 60 break; 61 case 0x11: 62 id = 5480; 63 break; 64 case 0x12: 65 id = 5475; 66 break; 67 case 0x13: 68 id = 5474; 69 break; 70 case 0x14: 71 id = 5473; 72 break; 73 case 0x15: 74 id = 5472; 75 break; 76 case 0x16: 77 id = 5471; 78 break; 79 case 0x17: 80 id = 5470; 81 break; 82 } 83 84 if (id) { 85 char buf1[32], buf2[32]; 86 87 printf("Freescale MCF%d\n", id); 88 printf(" CPU CLK %s MHz BUS CLK %s MHz\n", 89 strmhz(buf1, gd->cpu_clk), 90 strmhz(buf2, gd->bus_clk)); 91 } 92 93 return 0; 94 }; 95 #endif /* CONFIG_DISPLAY_CPUINFO */ 96 97 #if defined(CONFIG_HW_WATCHDOG) 98 /* Called by macro WATCHDOG_RESET */ 99 void hw_watchdog_reset(void) 100 { 101 gptmr_t *gptmr = (gptmr_t *) (MMAP_GPTMR); 102 103 out_8(&gptmr->ocpw, 0xa5); 104 } 105 106 int watchdog_disable(void) 107 { 108 gptmr_t *gptmr = (gptmr_t *) (MMAP_GPTMR); 109 110 /* UserManual, once the wdog is disabled, wdog cannot be re-enabled */ 111 out_8(&gptmr->mode, 0); 112 out_8(&gptmr->ctrl, 0); 113 114 puts("WATCHDOG:disabled\n"); 115 116 return (0); 117 } 118 119 int watchdog_init(void) 120 { 121 gptmr_t *gptmr = (gptmr_t *) (MMAP_GPTMR); 122 123 out_be16(&gptmr->pre, CONFIG_WATCHDOG_TIMEOUT); 124 out_be16(&gptmr->cnt, CONFIG_SYS_TIMER_PRESCALER * 1000); 125 126 out_8(&gptmr->mode, GPT_TMS_SGPIO); 127 out_8(&gptmr->ctrl, GPT_CTRL_CE | GPT_CTRL_WDEN); 128 puts("WATCHDOG:enabled\n"); 129 130 return (0); 131 } 132 #endif /* CONFIG_HW_WATCHDOG */ 133 134 #if defined(CONFIG_FSLDMAFEC) || defined(CONFIG_MCFFEC) 135 /* Default initializations for MCFFEC controllers. To override, 136 * create a board-specific function called: 137 * int board_eth_init(bd_t *bis) 138 */ 139 140 int cpu_eth_init(bd_t *bis) 141 { 142 #if defined(CONFIG_FSLDMAFEC) 143 mcdmafec_initialize(bis); 144 #endif 145 #if defined(CONFIG_MCFFEC) 146 mcffec_initialize(bis); 147 #endif 148 return 0; 149 } 150 #endif 151