LXR uboot/arch/m68k/cpu/mcf5227x/cpu.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 *
   4 * (C) Copyright 2000-2003
   5 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   6 *
   7 * Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc.
   8 * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
   9 */
  10
  11#include <common.h>
  12#include <init.h>
  13#include <vsprintf.h>
  14#include <watchdog.h>
  15#include <command.h>
  16#include <linux/delay.h>
  17
  18#include <asm/immap.h>
  19#include <asm/io.h>
  20
  21DECLARE_GLOBAL_DATA_PTR;
  22
  23int do_reset(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
  24{
  25        rcm_t *rcm = (rcm_t *) (MMAP_RCM);
  26        udelay(1000);
  27        setbits_8(&rcm->rcr, RCM_RCR_SOFTRST);
  28
  29        /* we don't return! */
  30        return 0;
  31};
  32
  33#if defined(CONFIG_DISPLAY_CPUINFO)
  34int print_cpuinfo(void)
  35{
  36        ccm_t *ccm = (ccm_t *) MMAP_CCM;
  37        u16 msk;
  38        u16 id = 0;
  39        u8 ver;
  40
  41        puts("CPU:   ");
  42        msk = (in_be16(&ccm->cir) >> 6);
  43        ver = (in_be16(&ccm->cir) & 0x003f);
  44        switch (msk) {
  45        case 0x6c:
  46                id = 52277;
  47                break;
  48        }
  49
  50        if (id) {
  51                char buf1[32], buf2[32], buf3[32];
  52
  53                printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk,
  54                       ver);
  55                printf("       CPU CLK %s MHz BUS CLK %s MHz FLB CLK %s MHz\n",
  56                       strmhz(buf1, gd->cpu_clk),
  57                       strmhz(buf2, gd->bus_clk),
  58                       strmhz(buf3, gd->arch.flb_clk));
  59                printf("       INP CLK %s MHz VCO CLK %s MHz\n",
  60                       strmhz(buf1, gd->arch.inp_clk),
  61                       strmhz(buf2, gd->arch.vco_clk));
  62        }
  63
  64        return 0;
  65}
  66#endif /* CONFIG_DISPLAY_CPUINFO */
  67