xref: /arm-trusted-firmware/plat/mediatek/drivers/dcm/mt8188/mtk_dcm_utils.c (revision 91f16700b400a8c0651d24a598fc48ee2997a0d7)

/*
 * Copyright (c) 2022, MediaTek Inc. All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#include <lib/mmio.h>
#include <lib/utils_def.h>
#include <mtk_dcm_utils.h>

#define MP_CPUSYS_TOP_ADB_DCM_REG0_MASK		BIT(17)
#define MP_CPUSYS_TOP_ADB_DCM_REG1_MASK		(BIT(15) | BIT(16) | BIT(17) | \
						 BIT(18) | BIT(21))
#define MP_CPUSYS_TOP_ADB_DCM_REG2_MASK		(BIT(15) | BIT(16) | BIT(17) | BIT(18))
#define MP_CPUSYS_TOP_ADB_DCM_REG0_ON		BIT(17)
#define MP_CPUSYS_TOP_ADB_DCM_REG1_ON		(BIT(15) | BIT(16) | BIT(17) | \
						 BIT(18) | BIT(21))
#define MP_CPUSYS_TOP_ADB_DCM_REG2_ON		(BIT(15) | BIT(16) | BIT(17) | BIT(18))
#define MP_CPUSYS_TOP_ADB_DCM_REG0_OFF		(0x0 << 17)
#define MP_CPUSYS_TOP_ADB_DCM_REG1_OFF		((0x0 << 15) | (0x0 << 16) | \
						 (0x0 << 17) | (0x0 << 18) | \
						 (0x0 << 21))
#define MP_CPUSYS_TOP_ADB_DCM_REG2_OFF		((0x0 << 15) | (0x0 << 16) | \
						 (0x0 << 17) | (0x0 << 18))

bool dcm_mp_cpusys_top_adb_dcm_is_on(void)
{
	bool ret = true;

	ret &= dcm_check_state(MP_CPUSYS_TOP_MP_ADB_DCM_CFG0,
			       MP_CPUSYS_TOP_ADB_DCM_REG0_MASK,
			       MP_CPUSYS_TOP_ADB_DCM_REG0_ON);
	ret &= dcm_check_state(MP_CPUSYS_TOP_MP_ADB_DCM_CFG4,
			       MP_CPUSYS_TOP_ADB_DCM_REG1_MASK,
			       MP_CPUSYS_TOP_ADB_DCM_REG1_ON);
	ret &= dcm_check_state(MP_CPUSYS_TOP_MCUSYS_DCM_CFG0,
			       MP_CPUSYS_TOP_ADB_DCM_REG2_MASK,
			       MP_CPUSYS_TOP_ADB_DCM_REG2_ON);

	return ret;
}

void dcm_mp_cpusys_top_adb_dcm(bool on)
{
	if (on) {
		/* TINFO = "Turn ON DCM 'mp_cpusys_top_adb_dcm'" */
		mmio_clrsetbits_32(MP_CPUSYS_TOP_MP_ADB_DCM_CFG0,
				   MP_CPUSYS_TOP_ADB_DCM_REG0_MASK,
				   MP_CPUSYS_TOP_ADB_DCM_REG0_ON);
		mmio_clrsetbits_32(MP_CPUSYS_TOP_MP_ADB_DCM_CFG4,
				   MP_CPUSYS_TOP_ADB_DCM_REG1_MASK,
				   MP_CPUSYS_TOP_ADB_DCM_REG1_ON);
		mmio_clrsetbits_32(MP_CPUSYS_TOP_MCUSYS_DCM_CFG0,
				   MP_CPUSYS_TOP_ADB_DCM_REG2_MASK,
				   MP_CPUSYS_TOP_ADB_DCM_REG2_ON);
	} else {
		/* TINFO = "Turn OFF DCM 'mp_cpusys_top_adb_dcm'" */
		mmio_clrsetbits_32(MP_CPUSYS_TOP_MP_ADB_DCM_CFG0,
				   MP_CPUSYS_TOP_ADB_DCM_REG0_MASK,
				   MP_CPUSYS_TOP_ADB_DCM_REG0_OFF);
		mmio_clrsetbits_32(MP_CPUSYS_TOP_MP_ADB_DCM_CFG4,
				   MP_CPUSYS_TOP_ADB_DCM_REG1_MASK,
				   MP_CPUSYS_TOP_ADB_DCM_REG1_OFF);
		mmio_clrsetbits_32(MP_CPUSYS_TOP_MCUSYS_DCM_CFG0,
				   MP_CPUSYS_TOP_ADB_DCM_REG2_MASK,
				   MP_CPUSYS_TOP_ADB_DCM_REG2_OFF);
	}
}

#define MP_CPUSYS_TOP_APB_DCM_REG0_MASK	BIT(5)
#define MP_CPUSYS_TOP_APB_DCM_REG1_MASK	BIT(8)
#define MP_CPUSYS_TOP_APB_DCM_REG2_MASK	BIT(16)
#define MP_CPUSYS_TOP_APB_DCM_REG0_ON	BIT(5)
#define MP_CPUSYS_TOP_APB_DCM_REG1_ON	BIT(8)
#define MP_CPUSYS_TOP_APB_DCM_REG2_ON	BIT(16)
#define MP_CPUSYS_TOP_APB_DCM_REG0_OFF	(0x0 << 5)
#define MP_CPUSYS_TOP_APB_DCM_REG1_OFF	(0x0 << 8)
#define MP_CPUSYS_TOP_APB_DCM_REG2_OFF	(0x0 << 16)

bool dcm_mp_cpusys_top_apb_dcm_is_on(void)
{
	bool ret = true;

	ret &= dcm_check_state(MP_CPUSYS_TOP_MP_MISC_DCM_CFG0,
			       MP_CPUSYS_TOP_APB_DCM_REG0_MASK,
			       MP_CPUSYS_TOP_APB_DCM_REG0_ON);
	ret &= dcm_check_state(MP_CPUSYS_TOP_MCUSYS_DCM_CFG0,
			       MP_CPUSYS_TOP_APB_DCM_REG1_MASK,
			       MP_CPUSYS_TOP_APB_DCM_REG1_ON);
	ret &= dcm_check_state(MP_CPUSYS_TOP_MP0_DCM_CFG0,
			       MP_CPUSYS_TOP_APB_DCM_REG2_MASK,
			       MP_CPUSYS_TOP_APB_DCM_REG2_ON);

	return ret;
}

void dcm_mp_cpusys_top_apb_dcm(bool on)
{
	if (on) {
		/* TINFO = "Turn ON DCM 'mp_cpusys_top_apb_dcm'" */
		mmio_clrsetbits_32(MP_CPUSYS_TOP_MP_MISC_DCM_CFG0,
				   MP_CPUSYS_TOP_APB_DCM_REG0_MASK,
				   MP_CPUSYS_TOP_APB_DCM_REG0_ON);
		mmio_clrsetbits_32(MP_CPUSYS_TOP_MCUSYS_DCM_CFG0,
				   MP_CPUSYS_TOP_APB_DCM_REG1_MASK,
				   MP_CPUSYS_TOP_APB_DCM_REG1_ON);
		mmio_clrsetbits_32(MP_CPUSYS_TOP_MP0_DCM_CFG0,
				   MP_CPUSYS_TOP_APB_DCM_REG2_MASK,
				   MP_CPUSYS_TOP_APB_DCM_REG2_ON);
	} else {
		/* TINFO = "Turn OFF DCM 'mp_cpusys_top_apb_dcm'" */
		mmio_clrsetbits_32(MP_CPUSYS_TOP_MP_MISC_DCM_CFG0,
				   MP_CPUSYS_TOP_APB_DCM_REG0_MASK,
				   MP_CPUSYS_TOP_APB_DCM_REG0_OFF);
		mmio_clrsetbits_32(MP_CPUSYS_TOP_MCUSYS_DCM_CFG0,
				   MP_CPUSYS_TOP_APB_DCM_REG1_MASK,
				   MP_CPUSYS_TOP_APB_DCM_REG1_OFF);
		mmio_clrsetbits_32(MP_CPUSYS_TOP_MP0_DCM_CFG0,
				   MP_CPUSYS_TOP_APB_DCM_REG2_MASK,
				   MP_CPUSYS_TOP_APB_DCM_REG2_OFF);
	}
}

#define MP_CPUSYS_TOP_BUS_PLL_DIV_DCM_REG0_MASK (BIT(11) | BIT(24) | BIT(25))
#define MP_CPUSYS_TOP_BUS_PLL_DIV_DCM_REG0_ON (BIT(11) | BIT(24) | BIT(25))
#define MP_CPUSYS_TOP_BUS_PLL_DIV_DCM_REG0_OFF ((0x0 << 11) | \
						(0x0 << 24) | \
						(0x0 << 25))

bool dcm_mp_cpusys_top_bus_pll_div_dcm_is_on(void)
{
	return dcm_check_state(MP_CPUSYS_TOP_BUS_PLLDIV_CFG,
			       MP_CPUSYS_TOP_BUS_PLL_DIV_DCM_REG0_MASK,
			       MP_CPUSYS_TOP_BUS_PLL_DIV_DCM_REG0_ON);
}

void dcm_mp_cpusys_top_bus_pll_div_dcm(bool on)
{
	if (on) {
		/* TINFO = "Turn ON DCM 'mp_cpusys_top_bus_pll_div_dcm'" */
		mmio_clrsetbits_32(MP_CPUSYS_TOP_BUS_PLLDIV_CFG,
				   MP_CPUSYS_TOP_BUS_PLL_DIV_DCM_REG0_MASK,
				   MP_CPUSYS_TOP_BUS_PLL_DIV_DCM_REG0_ON);
	} else {
		/* TINFO = "Turn OFF DCM 'mp_cpusys_top_bus_pll_div_dcm'" */
		mmio_clrsetbits_32(MP_CPUSYS_TOP_BUS_PLLDIV_CFG,
				   MP_CPUSYS_TOP_BUS_PLL_DIV_DCM_REG0_MASK,
				   MP_CPUSYS_TOP_BUS_PLL_DIV_DCM_REG0_OFF);
	}
}

#define MP_CPUSYS_TOP_CORE_STALL_DCM_REG0_MASK	BIT(0)
#define MP_CPUSYS_TOP_CORE_STALL_DCM_REG0_ON	BIT(0)
#define MP_CPUSYS_TOP_CORE_STALL_DCM_REG0_OFF	(0x0 << 0)

bool dcm_mp_cpusys_top_core_stall_dcm_is_on(void)
{
	return dcm_check_state(MP_CPUSYS_TOP_MP0_DCM_CFG7,
			       MP_CPUSYS_TOP_CORE_STALL_DCM_REG0_MASK,
			       MP_CPUSYS_TOP_CORE_STALL_DCM_REG0_ON);
}

void dcm_mp_cpusys_top_core_stall_dcm(bool on)
{
	if (on) {
		/* TINFO = "Turn ON DCM 'mp_cpusys_top_core_stall_dcm'" */
		mmio_clrsetbits_32(MP_CPUSYS_TOP_MP0_DCM_CFG7,
				   MP_CPUSYS_TOP_CORE_STALL_DCM_REG0_MASK,
				   MP_CPUSYS_TOP_CORE_STALL_DCM_REG0_ON);
	} else {
		/* TINFO = "Turn OFF DCM 'mp_cpusys_top_core_stall_dcm'" */
		mmio_clrsetbits_32(MP_CPUSYS_TOP_MP0_DCM_CFG7,
				   MP_CPUSYS_TOP_CORE_STALL_DCM_REG0_MASK,
				   MP_CPUSYS_TOP_CORE_STALL_DCM_REG0_OFF);
	}
}

#define MP_CPUSYS_TOP_CPUBIU_DCM_REG0_MASK	(0xffff << 0)
#define MP_CPUSYS_TOP_CPUBIU_DCM_REG0_ON	(0xffff << 0)
#define MP_CPUSYS_TOP_CPUBIU_DCM_REG0_OFF	(0x0 << 0)

bool dcm_mp_cpusys_top_cpubiu_dcm_is_on(void)
{
	return dcm_check_state(MP_CPUSYS_TOP_MCSIC_DCM0,
			       MP_CPUSYS_TOP_CPUBIU_DCM_REG0_MASK,
			       MP_CPUSYS_TOP_CPUBIU_DCM_REG0_ON);
}

void dcm_mp_cpusys_top_cpubiu_dcm(bool on)
{
	if (on) {
		/* TINFO = "Turn ON DCM 'mp_cpusys_top_cpubiu_dcm'" */
		mmio_clrsetbits_32(MP_CPUSYS_TOP_MCSIC_DCM0,
				   MP_CPUSYS_TOP_CPUBIU_DCM_REG0_MASK,
				   MP_CPUSYS_TOP_CPUBIU_DCM_REG0_ON);
	} else {
		/* TINFO = "Turn OFF DCM 'mp_cpusys_top_cpubiu_dcm'" */
		mmio_clrsetbits_32(MP_CPUSYS_TOP_MCSIC_DCM0,
				   MP_CPUSYS_TOP_CPUBIU_DCM_REG0_MASK,
				   MP_CPUSYS_TOP_CPUBIU_DCM_REG0_OFF);
	}
}

#define MP_CPUSYS_TOP_CPU_PLL_DIV_0_DCM_REG0_MASK (BIT(24) | BIT(25))
#define MP_CPUSYS_TOP_CPU_PLL_DIV_0_DCM_REG0_ON (BIT(24) | BIT(25))
#define MP_CPUSYS_TOP_CPU_PLL_DIV_0_DCM_REG0_OFF ((0x0 << 24) | (0x0 << 25))

bool dcm_mp_cpusys_top_cpu_pll_div_0_dcm_is_on(void)
{
	return dcm_check_state(MP_CPUSYS_TOP_CPU_PLLDIV_CFG0,
			       MP_CPUSYS_TOP_CPU_PLL_DIV_0_DCM_REG0_MASK,
			       MP_CPUSYS_TOP_CPU_PLL_DIV_0_DCM_REG0_ON);
}

void dcm_mp_cpusys_top_cpu_pll_div_0_dcm(bool on)
{
	if (on) {
		/* TINFO = "Turn ON DCM 'mp_cpusys_top_cpu_pll_div_0_dcm'" */
		mmio_clrsetbits_32(MP_CPUSYS_TOP_CPU_PLLDIV_CFG0,
				   MP_CPUSYS_TOP_CPU_PLL_DIV_0_DCM_REG0_MASK,
				   MP_CPUSYS_TOP_CPU_PLL_DIV_0_DCM_REG0_ON);
	} else {
		/* TINFO = "Turn OFF DCM 'mp_cpusys_top_cpu_pll_div_0_dcm'" */
		mmio_clrsetbits_32(MP_CPUSYS_TOP_CPU_PLLDIV_CFG0,
				   MP_CPUSYS_TOP_CPU_PLL_DIV_0_DCM_REG0_MASK,
				   MP_CPUSYS_TOP_CPU_PLL_DIV_0_DCM_REG0_OFF);
	}
}

#define MP_CPUSYS_TOP_CPU_PLL_DIV_1_DCM_REG0_MASK (BIT(24) | BIT(25))
#define MP_CPUSYS_TOP_CPU_PLL_DIV_1_DCM_REG0_ON (BIT(24) | BIT(25))
#define MP_CPUSYS_TOP_CPU_PLL_DIV_1_DCM_REG0_OFF ((0x0 << 24) | (0x0 << 25))

bool dcm_mp_cpusys_top_cpu_pll_div_1_dcm_is_on(void)
{
	return dcm_check_state(MP_CPUSYS_TOP_CPU_PLLDIV_CFG1,
			       MP_CPUSYS_TOP_CPU_PLL_DIV_1_DCM_REG0_MASK,
			       MP_CPUSYS_TOP_CPU_PLL_DIV_1_DCM_REG0_ON);
}

void dcm_mp_cpusys_top_cpu_pll_div_1_dcm(bool on)
{
	if (on) {
		/* TINFO = "Turn ON DCM 'mp_cpusys_top_cpu_pll_div_1_dcm'" */
		mmio_clrsetbits_32(MP_CPUSYS_TOP_CPU_PLLDIV_CFG1,
				   MP_CPUSYS_TOP_CPU_PLL_DIV_1_DCM_REG0_MASK,
				   MP_CPUSYS_TOP_CPU_PLL_DIV_1_DCM_REG0_ON);
	} else {
		/* TINFO = "Turn OFF DCM 'mp_cpusys_top_cpu_pll_div_1_dcm'" */
		mmio_clrsetbits_32(MP_CPUSYS_TOP_CPU_PLLDIV_CFG1,
				   MP_CPUSYS_TOP_CPU_PLL_DIV_1_DCM_REG0_MASK,
				   MP_CPUSYS_TOP_CPU_PLL_DIV_1_DCM_REG0_OFF);
	}
}

#define MP_CPUSYS_TOP_FCM_STALL_DCM_REG0_MASK	BIT(4)
#define MP_CPUSYS_TOP_FCM_STALL_DCM_REG0_ON	BIT(4)
#define MP_CPUSYS_TOP_FCM_STALL_DCM_REG0_OFF	(0x0 << 4)

bool dcm_mp_cpusys_top_fcm_stall_dcm_is_on(void)
{
	return dcm_check_state(MP_CPUSYS_TOP_MP0_DCM_CFG7,
			       MP_CPUSYS_TOP_FCM_STALL_DCM_REG0_MASK,
			       MP_CPUSYS_TOP_FCM_STALL_DCM_REG0_ON);
}

void dcm_mp_cpusys_top_fcm_stall_dcm(bool on)
{
	if (on) {
		/* TINFO = "Turn ON DCM 'mp_cpusys_top_fcm_stall_dcm'" */
		mmio_clrsetbits_32(MP_CPUSYS_TOP_MP0_DCM_CFG7,
				   MP_CPUSYS_TOP_FCM_STALL_DCM_REG0_MASK,
				   MP_CPUSYS_TOP_FCM_STALL_DCM_REG0_ON);
	} else {
		/* TINFO = "Turn OFF DCM 'mp_cpusys_top_fcm_stall_dcm'" */
		mmio_clrsetbits_32(MP_CPUSYS_TOP_MP0_DCM_CFG7,
				   MP_CPUSYS_TOP_FCM_STALL_DCM_REG0_MASK,
				   MP_CPUSYS_TOP_FCM_STALL_DCM_REG0_OFF);
	}
}

#define MP_CPUSYS_TOP_LAST_COR_IDLE_DCM_REG0_MASK	BIT(31)
#define MP_CPUSYS_TOP_LAST_COR_IDLE_DCM_REG0_ON		BIT(31)
#define MP_CPUSYS_TOP_LAST_COR_IDLE_DCM_REG0_OFF	(0x0U << 31)

bool dcm_mp_cpusys_top_last_cor_idle_dcm_is_on(void)
{
	return dcm_check_state(MP_CPUSYS_TOP_BUS_PLLDIV_CFG,
			       MP_CPUSYS_TOP_LAST_COR_IDLE_DCM_REG0_MASK,
			       MP_CPUSYS_TOP_LAST_COR_IDLE_DCM_REG0_ON);
}

void dcm_mp_cpusys_top_last_cor_idle_dcm(bool on)
{
	if (on) {
		/* TINFO = "Turn ON DCM 'mp_cpusys_top_last_cor_idle_dcm'" */
		mmio_clrsetbits_32(MP_CPUSYS_TOP_BUS_PLLDIV_CFG,
				   MP_CPUSYS_TOP_LAST_COR_IDLE_DCM_REG0_MASK,
				   MP_CPUSYS_TOP_LAST_COR_IDLE_DCM_REG0_ON);
	} else {
		/* TINFO = "Turn OFF DCM 'mp_cpusys_top_last_cor_idle_dcm'" */
		mmio_clrsetbits_32(MP_CPUSYS_TOP_BUS_PLLDIV_CFG,
				   MP_CPUSYS_TOP_LAST_COR_IDLE_DCM_REG0_MASK,
				   MP_CPUSYS_TOP_LAST_COR_IDLE_DCM_REG0_OFF);
	}
}

#define MP_CPUSYS_TOP_MISC_DCM_REG0_MASK (BIT(1) | BIT(4))
#define MP_CPUSYS_TOP_MISC_DCM_REG0_ON (BIT(1) | BIT(4))
#define MP_CPUSYS_TOP_MISC_DCM_REG0_OFF ((0x0 << 1) | (0x0 << 4))

bool dcm_mp_cpusys_top_misc_dcm_is_on(void)
{
	return dcm_check_state(MP_CPUSYS_TOP_MP_MISC_DCM_CFG0,
			       MP_CPUSYS_TOP_MISC_DCM_REG0_MASK,
			       MP_CPUSYS_TOP_MISC_DCM_REG0_ON);
}

void dcm_mp_cpusys_top_misc_dcm(bool on)
{
	if (on) {
		/* TINFO = "Turn ON DCM 'mp_cpusys_top_misc_dcm'" */
		mmio_clrsetbits_32(MP_CPUSYS_TOP_MP_MISC_DCM_CFG0,
				   MP_CPUSYS_TOP_MISC_DCM_REG0_MASK,
				   MP_CPUSYS_TOP_MISC_DCM_REG0_ON);
	} else {
		/* TINFO = "Turn OFF DCM 'mp_cpusys_top_misc_dcm'" */
		mmio_clrsetbits_32(MP_CPUSYS_TOP_MP_MISC_DCM_CFG0,
				   MP_CPUSYS_TOP_MISC_DCM_REG0_MASK,
				   MP_CPUSYS_TOP_MISC_DCM_REG0_OFF);
	}
}

#define MP_CPUSYS_TOP_MP0_QDCM_REG0_MASK BIT(3)
#define MP_CPUSYS_TOP_MP0_QDCM_REG1_MASK (BIT(0) | BIT(1) | BIT(2) | BIT(3))
#define MP_CPUSYS_TOP_MP0_QDCM_REG0_ON BIT(3)
#define MP_CPUSYS_TOP_MP0_QDCM_REG1_ON (BIT(0) | BIT(1) | BIT(2) | BIT(3))
#define MP_CPUSYS_TOP_MP0_QDCM_REG0_OFF ((0x0 << 3))
#define MP_CPUSYS_TOP_MP0_QDCM_REG1_OFF ((0x0 << 0) | (0x0 << 1) | \
					 (0x0 << 2) | (0x0 << 3))

bool dcm_mp_cpusys_top_mp0_qdcm_is_on(void)
{
	bool ret = true;

	ret &= dcm_check_state(MP_CPUSYS_TOP_MP_MISC_DCM_CFG0,
			       MP_CPUSYS_TOP_MP0_QDCM_REG0_MASK,
			       MP_CPUSYS_TOP_MP0_QDCM_REG0_ON);
	ret &= dcm_check_state(MP_CPUSYS_TOP_MP0_DCM_CFG0,
			       MP_CPUSYS_TOP_MP0_QDCM_REG1_MASK,
			       MP_CPUSYS_TOP_MP0_QDCM_REG1_ON);

	return ret;
}

void dcm_mp_cpusys_top_mp0_qdcm(bool on)
{
	if (on) {
		/* TINFO = "Turn ON DCM 'mp_cpusys_top_mp0_qdcm'" */
		mmio_clrsetbits_32(MP_CPUSYS_TOP_MP_MISC_DCM_CFG0,
				   MP_CPUSYS_TOP_MP0_QDCM_REG0_MASK,
				   MP_CPUSYS_TOP_MP0_QDCM_REG0_ON);
		mmio_clrsetbits_32(MP_CPUSYS_TOP_MP0_DCM_CFG0,
				   MP_CPUSYS_TOP_MP0_QDCM_REG1_MASK,
				   MP_CPUSYS_TOP_MP0_QDCM_REG1_ON);
	} else {
		/* TINFO = "Turn OFF DCM 'mp_cpusys_top_mp0_qdcm'" */
		mmio_clrsetbits_32(MP_CPUSYS_TOP_MP_MISC_DCM_CFG0,
				   MP_CPUSYS_TOP_MP0_QDCM_REG0_MASK,
				   MP_CPUSYS_TOP_MP0_QDCM_REG0_OFF);
		mmio_clrsetbits_32(MP_CPUSYS_TOP_MP0_DCM_CFG0,
				   MP_CPUSYS_TOP_MP0_QDCM_REG1_MASK,
				   MP_CPUSYS_TOP_MP0_QDCM_REG1_OFF);
	}
}

#define CPCCFG_REG_EMI_WFIFO_REG0_MASK (BIT(0) | BIT(1) | BIT(2) | BIT(3))
#define CPCCFG_REG_EMI_WFIFO_REG0_ON (BIT(0) | BIT(1) | BIT(2) | BIT(3))
#define CPCCFG_REG_EMI_WFIFO_REG0_OFF ((0x0 << 0) | (0x0 << 1) | \
				       (0x0 << 2) | (0x0 << 3))

bool dcm_cpccfg_reg_emi_wfifo_is_on(void)
{
	return dcm_check_state(CPCCFG_REG_EMI_WFIFO,
			       CPCCFG_REG_EMI_WFIFO_REG0_MASK,
			       CPCCFG_REG_EMI_WFIFO_REG0_ON);
}

void dcm_cpccfg_reg_emi_wfifo(bool on)
{
	if (on) {
		/* TINFO = "Turn ON DCM 'cpccfg_reg_emi_wfifo'" */
		mmio_clrsetbits_32(CPCCFG_REG_EMI_WFIFO,
				   CPCCFG_REG_EMI_WFIFO_REG0_MASK,
				   CPCCFG_REG_EMI_WFIFO_REG0_ON);
	} else {
		/* TINFO = "Turn OFF DCM 'cpccfg_reg_emi_wfifo'" */
		mmio_clrsetbits_32(CPCCFG_REG_EMI_WFIFO,
				   CPCCFG_REG_EMI_WFIFO_REG0_MASK,
				   CPCCFG_REG_EMI_WFIFO_REG0_OFF);
	}
}