xref: /openbmc/u-boot/arch/m68k/cpu/mcf530x/cpu.c (revision 0093b3fc)
1 /*
2  * (C) Copyright 2014  Angelo Dureghello <angelo@sysam.it>
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  *
6  */
7 
8 #include <common.h>
9 #include <asm/immap.h>
10 #include <asm/io.h>
11 
12 #ifdef CONFIG_M5307
13 int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
14 {
15 	sim_t *sim = (sim_t *)(MMAP_SIM);
16 
17 	/* enable watchdog/reset, set timeout to 0 and wait */
18 	out_8(&sim->sypcr, SYPCR_SWE | SYPCR_SWRI);
19 
20 	/* wait for watchdog reset */
21 	for (;;)
22 		;
23 
24 	/* we don't return! */
25 	return 0;
26 }
27 
28 #if defined(CONFIG_DISPLAY_CPUINFO)
29 int print_cpuinfo(void)
30 {
31 	char buf[32];
32 
33 	printf("CPU:   Freescale Coldfire MCF5307 at %s MHz\n",
34 	       strmhz(buf, CONFIG_SYS_CPU_CLK));
35 	return 0;
36 }
37 #endif /* CONFIG_DISPLAY_CPUINFO */
38 #endif
39