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/*
*
* (C) Copyright 2000-2003
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc.
* TsiChung Liew (Tsi-Chung.Liew@freescale.com)
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <watchdog.h>
#include <command.h>
#include <netdev.h>
#include <asm/immap.h>
#include <asm/io.h>
DECLARE_GLOBAL_DATA_PTR;
int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
ccm_t *ccm = (ccm_t *) MMAP_CCM;
out_8(&ccm->rcr, CCM_RCR_SOFTRST);
/* we don't return! */
return 0;
}
int checkcpu(void)
{
ccm_t *ccm = (ccm_t *) MMAP_CCM;
u16 msk;
u16 id = 0;
u8 ver;
puts("CPU: ");
msk = (in_be16(&ccm->cir) >> 6);
ver = (in_be16(&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)
{
wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
/* Count register */
out_be16(&wdp->sr, 0x5555);
asm("nop");
out_be16(&wdp->sr, 0xaaaa);
}
int watchdog_disable(void)
{
wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
/* UserManual, once the wdog is disabled, wdog cannot be re-enabled */
/* halted watchdog timer */
setbits_be16(&wdp->cr, WTM_WCR_HALTED);
puts("WATCHDOG:disabled\n");
return (0);
}
int watchdog_init(void)
{
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);
out_be16(&wdp->mr, wdog_module);
out_be16(&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
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