1 // SPDX-License-Identifier: GPL-2.0+
4 * (C) Copyright 2000-2003
5 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
7 * Copyright (C) 2004-2008, 2012 Freescale Semiconductor, Inc.
8 * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
17 #include <asm/immap.h>
20 DECLARE_GLOBAL_DATA_PTR;
22 int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
24 rcm_t *rcm = (rcm_t *) (MMAP_RCM);
27 setbits_8(&rcm->rcr, RCM_RCR_SOFTRST);
29 /* we don't return! */
33 #if defined(CONFIG_DISPLAY_CPUINFO)
34 int print_cpuinfo(void)
36 ccm_t *ccm = (ccm_t *) MMAP_CCM;
42 msk = (in_be16(&ccm->cir) >> 6);
43 ver = (in_be16(&ccm->cir) & 0x003f);
45 #ifdef CONFIG_MCF5301x
88 char buf1[32], buf2[32];
90 printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk,
92 printf(" CPU CLK %s MHz BUS CLK %s MHz\n",
93 strmhz(buf1, gd->cpu_clk),
94 strmhz(buf2, gd->bus_clk));
99 #endif /* CONFIG_DISPLAY_CPUINFO */
101 #if defined(CONFIG_WATCHDOG)
102 /* Called by macro WATCHDOG_RESET */
103 void watchdog_reset(void)
105 wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
108 out_be16(&wdp->sr, 0x5555);
109 out_be16(&wdp->sr, 0xaaaa);
112 int watchdog_disable(void)
114 wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
116 /* UserManual, once the wdog is disabled, wdog cannot be re-enabled */
117 /* halted watchdog timer */
118 setbits_be16(&wdp->cr, WTM_WCR_HALTED);
120 puts("WATCHDOG:disabled\n");
124 int watchdog_init(void)
126 wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
129 /* set timeout and enable watchdog */
130 wdog_module = ((CONFIG_SYS_CLK / 1000) * CONFIG_WATCHDOG_TIMEOUT);
132 out_be16(&wdp->mr, wdog_module / 8192);
134 out_be16(&wdp->mr, wdog_module / 4096);
137 out_be16(&wdp->cr, WTM_WCR_EN);
138 puts("WATCHDOG:enabled\n");
142 #endif /* CONFIG_WATCHDOG */
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)
149 int cpu_eth_init(bd_t *bis)
151 return mcffec_initialize(bis);