view target-utils/flash-boot-test/watchdog.c @ 505:7bf0d909c87e

fc-loadtool flash ID check: change of reset after the check logic This change only affects those flash configurations that have ID checks enabled. The logic for resetting the flash after the ID check has been changed as follows: 1) If the check fails, we return without attempting to reset the flash. 2) If the check is successful, we reset the flash using the configured method (could be AMD or Intel or Intel W30) instead of always doing an AMD flash reset as the original code did.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 27 May 2019 19:58:01 +0000
parents 3d7b546c710c
children
line wrap: on
line source

#include <sys/types.h>
#include "types.h"

void
cmd_wd()
{
	/* stop/disable the watchdog timer */
	*(volatile u16 *)0xFFFFF804 = 0xF5;
	*(volatile u16 *)0xFFFFF804 = 0xA0;
}

void
cmd_we()
{
	/* watchdog enable */
	*(volatile u16 *)0xFFFFF804 = 0x8000;
}

void
cmd_wr()
{
	/* read and display watchdog downcount register */
	printf("%04X\n", *(volatile u16 *)0xFFFFF802);
}

void
cmd_ww(argbulk)
	char *argbulk;
{
	/* single or double write to WATCHDOG_TIM_MODE */
	char *argv[3];
	u_long w1, w2;

	if (parse_args(argbulk, 1, 2, argv, 0) < 0)
		return;
	if (parse_hexarg(argv[0], 4, &w1) < 0) {
		printf("ERROR: arg1 must be a valid 16-bit hex value\n");
		return;
	}
	if (argv[1] && parse_hexarg(argv[1], 4, &w2) < 0) {
		printf("ERROR: arg2 must be a valid 16-bit hex value\n");
		return;
	}
	/* do it */
	*(volatile u16 *)0xFFFFF804 = w1;
	if (argv[1])
		*(volatile u16 *)0xFFFFF804 = w2;
}