mtk-lk/platform/mt6853/sec_efuse.c

/* Copyright Statement:
*
* This software/firmware and related documentation ("MediaTek Software") are
* protected under relevant copyright laws. The information contained herein
* is confidential and proprietary to MediaTek Inc. and/or its licensors.
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*/
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*
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* THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
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*/
#include <platform/mt_pmic.h>
#include <platform/mtk_wdt.h>
#include <platform/mt_gpt.h>

#define EFUSE_PMIC_CONTROL_ENABLE   1

/**************************************************************
 * WDT
 **************************************************************/
void efuse_wdt_restart(void)
{
	mtk_wdt_restart();
}

/****************************************************
 * Fsource
 * return 0 : success
 ****************************************************/
U32 efuse_fsource_set(void)
{
	U32 ret_val = 0;

#if EFUSE_PMIC_CONTROL_ENABLE

	/* 1.8V */
	ret_val |= pmic_config_interface((kal_uint32)(PMIC_RG_VEFUSE_VOSEL_ADDR),
            (kal_uint32)(0xC),
			(kal_uint32)(PMIC_RG_VEFUSE_VOSEL_MASK),
			(kal_uint32)(PMIC_RG_VEFUSE_VOSEL_SHIFT)
			);

	/* +0mV */
	ret_val |= pmic_config_interface((kal_uint32)(PMIC_RG_VEFUSE_VOCAL_ADDR),
            (kal_uint32)(0x0),
			(kal_uint32)(PMIC_RG_VEFUSE_VOCAL_MASK),
			(kal_uint32)(PMIC_RG_VEFUSE_VOCAL_SHIFT)
			);

	/* Fsource(VEFUSE) enabled */
	ret_val |= pmic_config_interface((kal_uint32)(PMIC_RG_LDO_VEFUSE_EN_ADDR),
			(kal_uint32)(0x1),
			(kal_uint32)(PMIC_RG_LDO_VEFUSE_EN_MASK),
			(kal_uint32)(PMIC_RG_LDO_VEFUSE_EN_SHIFT)
			);

	mdelay(10);

#endif

	return ret_val;
}

U32 efuse_fsource_close(void)
{
	U32 ret_val = 0;

#if EFUSE_PMIC_CONTROL_ENABLE

	/* Fsource(VEFUSE) disable */
	ret_val |= pmic_config_interface((kal_uint32)(PMIC_RG_LDO_VEFUSE_EN_ADDR),
			(kal_uint32)(0x0),
			(kal_uint32)(PMIC_RG_LDO_VEFUSE_EN_MASK),
			(kal_uint32)(PMIC_RG_LDO_VEFUSE_EN_SHIFT)
			);

	mdelay(10);

#endif

	return ret_val;
}

U32 efuse_fsource_is_enabled(void)
{
	U32 regVal = 0;

#if EFUSE_PMIC_CONTROL_ENABLE

	/*  Check Fsource(VEFUSE) Status */
	pmic_read_interface((kal_uint32)(PMIC_RG_LDO_VEFUSE_EN_ADDR),
			&regVal,
			(kal_uint32)(PMIC_RG_LDO_VEFUSE_EN_MASK),
			(kal_uint32)(PMIC_RG_LDO_VEFUSE_EN_SHIFT)
			);

	/* return 1 : fsource enabled
	 * return 0 : fsource disabled */

#endif

	return regVal;
}