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 int checkcpu(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 99 #if defined(CONFIG_WATCHDOG) 100 /* Called by macro WATCHDOG_RESET */ 101 void watchdog_reset(void) 102 { 103 wdog_t *wdp = (wdog_t *) (MMAP_WDOG); 104 105 /* Count register */ 106 out_be16(&wdp->sr, 0x5555); 107 out_be16(&wdp->sr, 0xaaaa); 108 } 109 110 int watchdog_disable(void) 111 { 112 wdog_t *wdp = (wdog_t *) (MMAP_WDOG); 113 114 /* UserManual, once the wdog is disabled, wdog cannot be re-enabled */ 115 /* halted watchdog timer */ 116 setbits_be16(&wdp->cr, WTM_WCR_HALTED); 117 118 puts("WATCHDOG:disabled\n"); 119 return (0); 120 } 121 122 int watchdog_init(void) 123 { 124 wdog_t *wdp = (wdog_t *) (MMAP_WDOG); 125 u32 wdog_module = 0; 126 127 /* set timeout and enable watchdog */ 128 wdog_module = ((CONFIG_SYS_CLK / 1000) * CONFIG_WATCHDOG_TIMEOUT); 129 #ifdef CONFIG_M5329 130 out_be16(&wdp->mr, wdog_module / 8192); 131 #else 132 out_be16(&wdp->mr, wdog_module / 4096); 133 #endif 134 135 out_be16(&wdp->cr, WTM_WCR_EN); 136 puts("WATCHDOG:enabled\n"); 137 138 return (0); 139 } 140 #endif /* CONFIG_WATCHDOG */ 141 142 #if defined(CONFIG_MCFFEC) 143 /* Default initializations for MCFFEC controllers. To override, 144 * create a board-specific function called: 145 * int board_eth_init(bd_t *bis) 146 */ 147 148 int cpu_eth_init(bd_t *bis) 149 { 150 return mcffec_initialize(bis); 151 } 152 #endif 153