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