linux/drivers/scsi/ufs/ufs-mediatek.h
Stanley Chu b0d077ed38 scsi: ufs-mediatek: add device reset implementation
Add device reset vops implementation in MediaTek UFS driver.

Cc: Alim Akhtar <alim.akhtar@samsung.com>
Cc: Avri Altman <avri.altman@wdc.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Bean Huo <beanhuo@micron.com>
Cc: Can Guo <cang@codeaurora.org>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/1577683950-1702-3-git-send-email-stanley.chu@mediatek.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2020-01-02 21:57:44 -05:00

63 lines
1.3 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2019 MediaTek Inc.
*/
#ifndef _UFS_MEDIATEK_H
#define _UFS_MEDIATEK_H
#include <linux/bitops.h>
#include <linux/soc/mediatek/mtk_sip_svc.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
/*
* SiP commands
*/
#define MTK_SIP_UFS_CONTROL MTK_SIP_SMC_CMD(0x276)
#define UFS_MTK_SIP_DEVICE_RESET BIT(1)
/*
* 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 */