1 // SPDX-License-Identifier: GPL-2.0+
4 * (C) Copyright 2000-2003
5 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
7 * Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc.
8 * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
18 #include <asm/immap.h>
21 DECLARE_GLOBAL_DATA_PTR;
23 int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
25 ccm_t *ccm = (ccm_t *) MMAP_CCM;
27 out_8(&ccm->rcr, CCM_RCR_SOFTRST);
28 /* we don't return! */
32 #if defined(CONFIG_DISPLAY_CPUINFO)
33 int print_cpuinfo(void)
35 ccm_t *ccm = (ccm_t *) MMAP_CCM;
41 msk = (in_be16(&ccm->cir) >> 6);
42 ver = (in_be16(&ccm->cir) & 0x003f);
50 char buf1[32], buf2[32];
52 printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk,
54 printf(" CPU CLK %s MHz BUS CLK %s MHz\n",
55 strmhz(buf1, gd->cpu_clk),
56 strmhz(buf2, gd->bus_clk));
61 #endif /* CONFIG_DISPLAY_CPUINFO */
63 #if defined(CONFIG_WATCHDOG)
64 /* Called by macro WATCHDOG_RESET */
65 void watchdog_reset(void)
67 wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
70 out_be16(&wdp->sr, 0x5555);
72 out_be16(&wdp->sr, 0xaaaa);
75 int watchdog_disable(void)
77 wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
79 /* UserManual, once the wdog is disabled, wdog cannot be re-enabled */
80 /* halted watchdog timer */
81 setbits_be16(&wdp->cr, WTM_WCR_HALTED);
83 puts("WATCHDOG:disabled\n");
87 int watchdog_init(void)
89 wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
92 /* set timeout and enable watchdog */
93 wdog_module = ((CONFIG_SYS_CLK / CONFIG_SYS_HZ) * CONFIG_WATCHDOG_TIMEOUT);
94 wdog_module |= (wdog_module / 8192);
95 out_be16(&wdp->mr, wdog_module);
97 out_be16(&wdp->cr, WTM_WCR_EN);
98 puts("WATCHDOG:enabled\n");
102 #endif /* CONFIG_WATCHDOG */
104 #if defined(CONFIG_MCFFEC)
105 /* Default initializations for MCFFEC controllers. To override,
106 * create a board-specific function called:
107 * int board_eth_init(bd_t *bis)
110 int cpu_eth_init(bd_t *bis)
112 return mcffec_initialize(bis);