arm-trusted-firmware/plat/mediatek/drivers/rng/mt8188/rng_plat.h

/*
 * Copyright (c) 2024, MediaTek Inc. All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#ifndef RNG_PLAT_H
#define RNG_PLAT_H

#include <lib/utils_def.h>

#define MTK_TIMEOUT_POLL	1000

#define MTK_RETRY_CNT		10

#define RNG_DEFAULT_CUTOFF	0x04871C0B

/*******************************************************************************
 * TRNG related constants
 ******************************************************************************/
#define RNG_STATUS		(TRNG_BASE + 0x0004)
#define RNG_SWRST		(TRNG_BASE + 0x0010)
#define RNG_IRQ_CFG		(TRNG_BASE + 0x0014)
#define RNG_EN			(TRNG_BASE + 0x0020)
#define RNG_HTEST		(TRNG_BASE + 0x0028)
#define RNG_OUT			(TRNG_BASE + 0x0030)
#define RNG_RAW			(TRNG_BASE + 0x0038)
#define RNG_SRC			(TRNG_BASE + 0x0050)

#define RAW_VALID		BIT(12)
#define DRBG_VALID		BIT(4)
#define RAW_EN			BIT(8)
#define NRBG_EN			BIT(4)
#define DRBG_EN			BIT(0)
#define IRQ_EN			BIT(0)
#define SWRST_B			BIT(0)
/* Error conditions */
#define RNG_ERROR		GENMASK_32(28, 24)
#define APB_ERROR		BIT(16)

/* External swrst */
#define TRNG_SWRST_SET_REG	(INFRACFG_AO_BASE + 0x150)
#define TRNG_SWRST_CLR_REG	(INFRACFG_AO_BASE + 0x154)
#define RNG_SWRST_B		BIT(13)

#endif /* RNG_PLAT_H */