/* Copyright (c) 2015, The Linux Foundation. All rights reserved.

 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above
 *     copyright notice, this list of conditions and the following
 *     disclaimer in the documentation and/or other materials provided
 *     with the distribution.
 *   * Neither the name of The Linux Foundation. nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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 */

#include <stdlib.h>
#include <debug.h>
#include <platform.h>
#include <platform/iomap.h>
#include <reg.h>
#include <wdog.h>
#include <target.h>
#include <scm.h>
#include <dload_util.h>

void msm_wdog_init()
{
	uint32_t ret;

	/* Set Bite and Bark times  10s */
	writel(0x77FD3, APPS_WDOG_BARK_VAL_REG);
	writel(0x77FD3, APPS_WDOG_BITE_VAL_REG);

	/* Reset WDOG */
	writel(1, APPS_WDOG_RESET_REG);

	/* Enable WDOG */
	writel((readl(APPS_WDOG_CTL_REG) | 0x1), APPS_WDOG_CTL_REG);

	/* Write to the Boot MISC register to put the device in dload mode*/
	ret = scm_call2_atomic(SCM_SVC_BOOT, SCM_DLOAD_CMD, SCM_DLOAD_MODE, 0);

	if (ret) {
		ret = scm_io_write(TCSR_BOOT_MISC_DETECT,SCM_DLOAD_MODE);
		if(ret) {
			dprintf(CRITICAL, "Failed to write to boot misc: %d\n", ret);
		}
	}
}