/* * * (C) Copyright 2000-2003 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * Copyright (C) 2004-2007 Freescale Semiconductor, Inc. * TsiChung Liew (Tsi-Chung.Liew@freescale.com) * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #include <common.h> #include <watchdog.h> #include <command.h> #include <netdev.h> #include <asm/immap.h> DECLARE_GLOBAL_DATA_PTR; int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char *argv[]) { volatile ccm_t *ccm = (ccm_t *) MMAP_CCM; ccm->rcr = CCM_RCR_SOFTRST; /* we don't return! */ return 0; }; int checkcpu(void) { volatile ccm_t *ccm = (ccm_t *) MMAP_CCM; u16 msk; u16 id = 0; u8 ver; puts("CPU: "); msk = (ccm->cir >> 6); ver = (ccm->cir & 0x003f); switch (msk) { case 0x31: id = 5235; break; } if (id) { char buf1[32], buf2[32]; printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk, ver); printf(" CPU CLK %s MHz BUS CLK %s MHz\n", strmhz(buf1, gd->cpu_clk), strmhz(buf2, gd->bus_clk)); } return 0; }; #if defined(CONFIG_WATCHDOG) /* Called by macro WATCHDOG_RESET */ void watchdog_reset(void) { volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG); wdp->sr = 0x5555; /* Count register */ asm("nop"); wdp->sr = 0xAAAA; /* Count register */ } int watchdog_disable(void) { volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG); /* UserManual, once the wdog is disabled, wdog cannot be re-enabled */ wdp->cr |= WTM_WCR_HALTED; /* halted watchdog timer */ puts("WATCHDOG:disabled\n"); return (0); } int watchdog_init(void) { volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG); u32 wdog_module = 0; /* set timeout and enable watchdog */ wdog_module = ((CONFIG_SYS_CLK / CONFIG_SYS_HZ) * CONFIG_WATCHDOG_TIMEOUT); wdog_module |= (wdog_module / 8192); wdp->mr = wdog_module; wdp->cr = WTM_WCR_EN; puts("WATCHDOG:enabled\n"); return (0); } #endif /* CONFIG_WATCHDOG */ #if defined(CONFIG_MCFFEC) /* Default initializations for MCFFEC controllers. To override, * create a board-specific function called: * int board_eth_init(bd_t *bis) */ int cpu_eth_init(bd_t *bis) { return mcffec_initialize(bis); } #endif