Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm...
[linux-2.6-microblaze.git] / drivers / scsi / ufs / ufs-mediatek.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Copyright (C) 2019 MediaTek Inc.
4  */
5
6 #ifndef _UFS_MEDIATEK_H
7 #define _UFS_MEDIATEK_H
8
9 #include <linux/bitops.h>
10 #include <linux/soc/mediatek/mtk_sip_svc.h>
11
12 /*
13  * Vendor specific UFSHCI Registers
14  */
15 #define REG_UFS_REFCLK_CTRL         0x144
16 #define REG_UFS_EXTREG              0x2100
17 #define REG_UFS_MPHYCTRL            0x2200
18 #define REG_UFS_REJECT_MON          0x22AC
19 #define REG_UFS_DEBUG_SEL           0x22C0
20 #define REG_UFS_PROBE               0x22C8
21
22 /*
23  * Ref-clk control
24  *
25  * Values for register REG_UFS_REFCLK_CTRL
26  */
27 #define REFCLK_RELEASE              0x0
28 #define REFCLK_REQUEST              BIT(0)
29 #define REFCLK_ACK                  BIT(1)
30
31 #define REFCLK_REQ_TIMEOUT_MS       3
32
33 /*
34  * Vendor specific pre-defined parameters
35  */
36 #define UFS_MTK_LIMIT_NUM_LANES_RX  1
37 #define UFS_MTK_LIMIT_NUM_LANES_TX  1
38 #define UFS_MTK_LIMIT_HSGEAR_RX     UFS_HS_G3
39 #define UFS_MTK_LIMIT_HSGEAR_TX     UFS_HS_G3
40 #define UFS_MTK_LIMIT_PWMGEAR_RX    UFS_PWM_G4
41 #define UFS_MTK_LIMIT_PWMGEAR_TX    UFS_PWM_G4
42 #define UFS_MTK_LIMIT_RX_PWR_PWM    SLOW_MODE
43 #define UFS_MTK_LIMIT_TX_PWR_PWM    SLOW_MODE
44 #define UFS_MTK_LIMIT_RX_PWR_HS     FAST_MODE
45 #define UFS_MTK_LIMIT_TX_PWR_HS     FAST_MODE
46 #define UFS_MTK_LIMIT_HS_RATE       PA_HS_MODE_B
47 #define UFS_MTK_LIMIT_DESIRED_MODE  UFS_HS_MODE
48
49 /*
50  * Other attributes
51  */
52 #define VS_DEBUGCLOCKENABLE         0xD0A1
53 #define VS_SAVEPOWERCONTROL         0xD0A6
54 #define VS_UNIPROPOWERDOWNCONTROL   0xD0A8
55
56 /*
57  * Vendor specific link state
58  */
59 enum {
60         VS_LINK_DISABLED            = 0,
61         VS_LINK_DOWN                = 1,
62         VS_LINK_UP                  = 2,
63         VS_LINK_HIBERN8             = 3,
64         VS_LINK_LOST                = 4,
65         VS_LINK_CFG                 = 5,
66 };
67
68 /*
69  * SiP commands
70  */
71 #define MTK_SIP_UFS_CONTROL               MTK_SIP_SMC_CMD(0x276)
72 #define UFS_MTK_SIP_DEVICE_RESET          BIT(1)
73 #define UFS_MTK_SIP_REF_CLK_NOTIFICATION  BIT(3)
74
75 /*
76  * VS_DEBUGCLOCKENABLE
77  */
78 enum {
79         TX_SYMBOL_CLK_REQ_FORCE = 5,
80 };
81
82 /*
83  * VS_SAVEPOWERCONTROL
84  */
85 enum {
86         RX_SYMBOL_CLK_GATE_EN   = 0,
87         SYS_CLK_GATE_EN         = 2,
88         TX_CLK_GATE_EN          = 3,
89 };
90
91 struct ufs_mtk_host {
92         struct ufs_hba *hba;
93         struct phy *mphy;
94         bool unipro_lpm;
95         bool ref_clk_enabled;
96         u16 ref_clk_ungating_wait_us;
97         u16 ref_clk_gating_wait_us;
98 };
99
100 #endif /* !_UFS_MEDIATEK_H */