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)
18 #include <asm/global_data.h>
19 #include <linux/delay.h>
21 #include <asm/immap.h>
24 DECLARE_GLOBAL_DATA_PTR;
26 int do_reset(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
28 rcm_t *rcm = (rcm_t *) (MMAP_RCM);
31 setbits_8(&rcm->rcr, RCM_RCR_SOFTRST);
33 /* we don't return! */
37 #if defined(CONFIG_DISPLAY_CPUINFO)
38 int print_cpuinfo(void)
40 ccm_t *ccm = (ccm_t *) MMAP_CCM;
46 msk = (in_be16(&ccm->cir) >> 6);
47 ver = (in_be16(&ccm->cir) & 0x003f);
49 #ifdef CONFIG_MCF5301x
92 char buf1[32], buf2[32];
94 printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk,
96 printf(" CPU CLK %s MHz BUS CLK %s MHz\n",
97 strmhz(buf1, gd->cpu_clk),
98 strmhz(buf2, gd->bus_clk));
103 #endif /* CONFIG_DISPLAY_CPUINFO */
105 #if defined(CONFIG_WATCHDOG)
106 /* Called by macro WATCHDOG_RESET */
107 void watchdog_reset(void)
109 wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
112 out_be16(&wdp->sr, 0x5555);
113 out_be16(&wdp->sr, 0xaaaa);
116 int watchdog_disable(void)
118 wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
120 /* UserManual, once the wdog is disabled, wdog cannot be re-enabled */
121 /* halted watchdog timer */
122 setbits_be16(&wdp->cr, WTM_WCR_HALTED);
124 puts("WATCHDOG:disabled\n");
128 int watchdog_init(void)
130 wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
133 /* set timeout and enable watchdog */
134 wdog_module = ((CFG_SYS_CLK / 1000) * CONFIG_WATCHDOG_TIMEOUT_MSECS);
136 out_be16(&wdp->mr, wdog_module / 8192);
138 out_be16(&wdp->mr, wdog_module / 4096);
141 out_be16(&wdp->cr, WTM_WCR_EN);
142 puts("WATCHDOG:enabled\n");
146 #endif /* CONFIG_WATCHDOG */
148 #if defined(CONFIG_MCFFEC)
149 /* Default initializations for MCFFEC controllers. To override,
150 * create a board-specific function called:
151 * int board_eth_init(struct bd_info *bis)
153 int cpu_eth_init(struct bd_info *bis)
155 return mcffec_initialize(bis);