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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2022 MediaTek Inc.
* Copyright (c) 2025, Igor Belwon <[email protected]>
*
* Slimmed down header from Linux: drivers/ufs/host/ufs-mediatek-sip.h
*/
#ifndef _UFS_MEDIATEK_SIP_H
#define _UFS_MEDIATEK_SIP_H
#include <linux/arm-smccc.h>
/*
* SiP (Slicon Partner) commands
*/
#define MTK_SIP_UFS_CONTROL ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \
ARM_SMCCC_SMC_64, \
ARM_SMCCC_OWNER_SIP, 0x276)
#define UFS_MTK_SIP_DEVICE_RESET BIT(1)
#define UFS_MTK_SIP_REF_CLK_NOTIFICATION BIT(3)
/*
* SMC call wrapper function
*/
struct ufs_mtk_smc_arg {
unsigned long cmd;
struct arm_smccc_res *res;
unsigned long v1;
unsigned long v2;
unsigned long v3;
unsigned long v4;
unsigned long v5;
unsigned long v6;
unsigned long v7;
};
static inline void _ufs_mtk_smc(struct ufs_mtk_smc_arg s)
{
arm_smccc_smc(MTK_SIP_UFS_CONTROL,
s.cmd,
s.v1, s.v2, s.v3, s.v4, s.v5, s.v6, s.res);
}
#define ufs_mtk_smc(...) \
_ufs_mtk_smc((struct ufs_mtk_smc_arg) {__VA_ARGS__})
/* SIP interface */
#define ufs_mtk_ref_clk_notify(on, stage, res) \
ufs_mtk_smc(UFS_MTK_SIP_REF_CLK_NOTIFICATION, &(res), on, stage)
#define ufs_mtk_device_reset_ctrl(high, res) \
ufs_mtk_smc(UFS_MTK_SIP_DEVICE_RESET, &(res), high)
#endif /* !_UFS_MEDIATEK_SIP_H */
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