linux/drivers/scsi/ufs/ufs-mediatek.h
Stanley Chu ddd90623ce scsi: ufs-mediatek: Add UFS support for Mediatek SoC chips
This patch adds UFS support for MediaTek SoC chips.

Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-03-19 16:56:21 -04:00

54 lines
1.2 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2019 MediaTek Inc.
*/
#ifndef _UFS_MEDIATEK_H
#define _UFS_MEDIATEK_H
/*
* Vendor specific pre-defined parameters
*/
#define UFS_MTK_LIMIT_NUM_LANES_RX 1
#define UFS_MTK_LIMIT_NUM_LANES_TX 1
#define UFS_MTK_LIMIT_HSGEAR_RX UFS_HS_G3
#define UFS_MTK_LIMIT_HSGEAR_TX UFS_HS_G3
#define UFS_MTK_LIMIT_PWMGEAR_RX UFS_PWM_G4
#define UFS_MTK_LIMIT_PWMGEAR_TX UFS_PWM_G4
#define UFS_MTK_LIMIT_RX_PWR_PWM SLOW_MODE
#define UFS_MTK_LIMIT_TX_PWR_PWM SLOW_MODE
#define UFS_MTK_LIMIT_RX_PWR_HS FAST_MODE
#define UFS_MTK_LIMIT_TX_PWR_HS FAST_MODE
#define UFS_MTK_LIMIT_HS_RATE PA_HS_MODE_B
#define UFS_MTK_LIMIT_DESIRED_MODE UFS_HS_MODE
/*
* Other attributes
*/
#define VS_DEBUGCLOCKENABLE 0xD0A1
#define VS_SAVEPOWERCONTROL 0xD0A6
#define VS_UNIPROPOWERDOWNCONTROL 0xD0A8
/*
* VS_DEBUGCLOCKENABLE
*/
enum {
TX_SYMBOL_CLK_REQ_FORCE = 5,
};
/*
* VS_SAVEPOWERCONTROL
*/
enum {
RX_SYMBOL_CLK_GATE_EN = 0,
SYS_CLK_GATE_EN = 2,
TX_CLK_GATE_EN = 3,
};
struct ufs_mtk_host {
struct ufs_hba *hba;
struct phy *mphy;
};
#endif /* !_UFS_MEDIATEK_H */