1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * 4 * (C) Copyright 2000-2003 5 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 6 * 7 * Copyright (C) 2004-2008, 2012 Freescale Semiconductor, Inc. 8 * TsiChung Liew (Tsi-Chung.Liew@freescale.com) 9 */ 10 11 #include <common.h> 12 #include <watchdog.h> 13 #include <command.h> 14 #include <netdev.h> 15 16 #include <asm/immap.h> 17 #include <asm/io.h> 18 19 DECLARE_GLOBAL_DATA_PTR; 20 21 int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 22 { 23 rcm_t *rcm = (rcm_t *) (MMAP_RCM); 24 25 udelay(1000); 26 setbits_8(&rcm->rcr, RCM_RCR_SOFTRST); 27 28 /* we don't return! */ 29 return 0; 30 }; 31 32 #if defined(CONFIG_DISPLAY_CPUINFO) 33 int print_cpuinfo(void) 34 { 35 ccm_t *ccm = (ccm_t *) MMAP_CCM; 36 u16 msk; 37 u16 id = 0; 38 u8 ver; 39 40 puts("CPU: "); 41 msk = (in_be16(&ccm->cir) >> 6); 42 ver = (in_be16(&ccm->cir) & 0x003f); 43 switch (msk) { 44 #ifdef CONFIG_MCF5301x 45 case 0x78: 46 id = 53010; 47 break; 48 case 0x77: 49 id = 53012; 50 break; 51 case 0x76: 52 id = 53015; 53 break; 54 case 0x74: 55 id = 53011; 56 break; 57 case 0x73: 58 id = 53013; 59 break; 60 #endif 61 #ifdef CONFIG_MCF532x 62 case 0x54: 63 id = 5329; 64 break; 65 case 0x59: 66 id = 5328; 67 break; 68 case 0x61: 69 id = 5327; 70 break; 71 case 0x65: 72 id = 5373; 73 break; 74 case 0x68: 75 id = 53721; 76 break; 77 case 0x69: 78 id = 5372; 79 break; 80 case 0x6B: 81 id = 5372; 82 break; 83 #endif 84 } 85 86 if (id) { 87 char buf1[32], buf2[32]; 88 89 printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk, 90 ver); 91 printf(" CPU CLK %s MHz BUS CLK %s MHz\n", 92 strmhz(buf1, gd->cpu_clk), 93 strmhz(buf2, gd->bus_clk)); 94 } 95 96 return 0; 97 }; 98 #endif /* CONFIG_DISPLAY_CPUINFO */ 99 100 #if defined(CONFIG_WATCHDOG) 101 /* Called by macro WATCHDOG_RESET */ 102 void watchdog_reset(void) 103 { 104 wdog_t *wdp = (wdog_t *) (MMAP_WDOG); 105 106 /* Count register */ 107 out_be16(&wdp->sr, 0x5555); 108 out_be16(&wdp->sr, 0xaaaa); 109 } 110 111 int watchdog_disable(void) 112 { 113 wdog_t *wdp = (wdog_t *) (MMAP_WDOG); 114 115 /* UserManual, once the wdog is disabled, wdog cannot be re-enabled */ 116 /* halted watchdog timer */ 117 setbits_be16(&wdp->cr, WTM_WCR_HALTED); 118 119 puts("WATCHDOG:disabled\n"); 120 return (0); 121 } 122 123 int watchdog_init(void) 124 { 125 wdog_t *wdp = (wdog_t *) (MMAP_WDOG); 126 u32 wdog_module = 0; 127 128 /* set timeout and enable watchdog */ 129 wdog_module = ((CONFIG_SYS_CLK / 1000) * CONFIG_WATCHDOG_TIMEOUT); 130 #ifdef CONFIG_M5329 131 out_be16(&wdp->mr, wdog_module / 8192); 132 #else 133 out_be16(&wdp->mr, wdog_module / 4096); 134 #endif 135 136 out_be16(&wdp->cr, WTM_WCR_EN); 137 puts("WATCHDOG:enabled\n"); 138 139 return (0); 140 } 141 #endif /* CONFIG_WATCHDOG */ 142 143 #if defined(CONFIG_MCFFEC) 144 /* Default initializations for MCFFEC controllers. To override, 145 * create a board-specific function called: 146 * int board_eth_init(bd_t *bis) 147 */ 148 149 int cpu_eth_init(bd_t *bis) 150 { 151 return mcffec_initialize(bis); 152 } 153 #endif 154