mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-27 13:33:40 +00:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
112 lines
2.2 KiB
C
112 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
*
|
|
* (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)
|
|
*/
|
|
|
|
#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;
|
|
}
|
|
|
|
#if defined(CONFIG_DISPLAY_CPUINFO)
|
|
int print_cpuinfo(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;
|
|
};
|
|
#endif /* CONFIG_DISPLAY_CPUINFO */
|
|
|
|
#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
|