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/* 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 UFSHCI Registers
*/
#define REG_UFS_REFCLK_CTRL 0x144
#define REG_UFS_EXTREG 0x2100
#define REG_UFS_MPHYCTRL 0x2200
#define REG_UFS_REJECT_MON 0x22AC
#define REG_UFS_DEBUG_SEL 0x22C0
#define REG_UFS_PROBE 0x22C8
/*
* Ref-clk control
*
* Values for register REG_UFS_REFCLK_CTRL
*/
#define REFCLK_RELEASE 0x0
#define REFCLK_REQUEST BIT(0)
#define REFCLK_ACK BIT(1)
#define REFCLK_REQ_TIMEOUT_US 3000
/*
* Vendor specific pre-defined parameters
*/
#define UFS_MTK_LIMIT_NUM_LANES_RX 2
#define UFS_MTK_LIMIT_NUM_LANES_TX 2
#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
/*
* Vendor specific link state
*/
enum {
VS_LINK_DISABLED = 0,
VS_LINK_DOWN = 1,
VS_LINK_UP = 2,
VS_LINK_HIBERN8 = 3,
VS_LINK_LOST = 4,
VS_LINK_CFG = 5,
};
/*
* SiP commands
*/
#define MTK_SIP_UFS_CONTROL MTK_SIP_SMC_CMD(0x276)
#define UFS_MTK_SIP_VA09_PWR_CTRL BIT(0)
#define UFS_MTK_SIP_DEVICE_RESET BIT(1)
#define UFS_MTK_SIP_CRYPTO_CTRL BIT(2)
#define UFS_MTK_SIP_REF_CLK_NOTIFICATION BIT(3)
/*
* 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,
};
/*
* Host capability
*/
enum ufs_mtk_host_caps {
UFS_MTK_CAP_BOOST_CRYPT_ENGINE = 1 << 0,
UFS_MTK_CAP_VA09_PWR_CTRL = 1 << 1,
UFS_MTK_CAP_DISABLE_AH8 = 1 << 2,
};
struct ufs_mtk_crypt_cfg {
struct regulator *reg_vcore;
struct clk *clk_crypt_perf;
struct clk *clk_crypt_mux;
struct clk *clk_crypt_lp;
int vcore_volt;
};
struct ufs_mtk_host {
struct phy *mphy;
struct regulator *reg_va09;
struct reset_control *hci_reset;
struct reset_control *unipro_reset;
struct reset_control *crypto_reset;
struct ufs_hba *hba;
struct ufs_mtk_crypt_cfg *crypt;
enum ufs_mtk_host_caps caps;
bool mphy_powered_on;
bool unipro_lpm;
bool ref_clk_enabled;
u16 ref_clk_ungating_wait_us;
u16 ref_clk_gating_wait_us;
};
#endif /* !_UFS_MEDIATEK_H */
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