1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Copyright (c) 2016 Linaro Limited.
4 * Copyright (c) 2014-2016 HiSilicon Limited.
5 */
6
7 #ifndef __DW_DSI_REG_H__
8 #define __DW_DSI_REG_H__
9
10 #include <linux/io.h>
11
12 #define MASK(x) (BIT(x) - 1)
13
14 /*
15 * regs
16 */
17 #define PWR_UP 0x04 /* Core power-up */
18 #define RESET 0
19 #define POWERUP BIT(0)
20 #define PHY_IF_CFG 0xA4 /* D-PHY interface configuration */
21 #define CLKMGR_CFG 0x08 /* the internal clock dividers */
22 #define PHY_RSTZ 0xA0 /* D-PHY reset control */
23 #define PHY_ENABLECLK BIT(2)
24 #define PHY_UNRSTZ BIT(1)
25 #define PHY_UNSHUTDOWNZ BIT(0)
26 #define PHY_TST_CTRL0 0xB4 /* D-PHY test interface control 0 */
27 #define PHY_TST_CTRL1 0xB8 /* D-PHY test interface control 1 */
28 #define CLK_TLPX 0x10
29 #define CLK_THS_PREPARE 0x11
30 #define CLK_THS_ZERO 0x12
31 #define CLK_THS_TRAIL 0x13
32 #define CLK_TWAKEUP 0x14
33 #define DATA_TLPX(x) (0x20 + ((x) << 4))
34 #define DATA_THS_PREPARE(x) (0x21 + ((x) << 4))
35 #define DATA_THS_ZERO(x) (0x22 + ((x) << 4))
36 #define DATA_THS_TRAIL(x) (0x23 + ((x) << 4))
37 #define DATA_TTA_GO(x) (0x24 + ((x) << 4))
38 #define DATA_TTA_GET(x) (0x25 + ((x) << 4))
39 #define DATA_TWAKEUP(x) (0x26 + ((x) << 4))
40 #define PHY_CFG_I 0x60
41 #define PHY_CFG_PLL_I 0x63
42 #define PHY_CFG_PLL_II 0x64
43 #define PHY_CFG_PLL_III 0x65
44 #define PHY_CFG_PLL_IV 0x66
45 #define PHY_CFG_PLL_V 0x67
46 #define DPI_COLOR_CODING 0x10 /* DPI color coding */
47 #define DPI_CFG_POL 0x14 /* DPI polarity configuration */
48 #define VID_HSA_TIME 0x48 /* Horizontal Sync Active time */
49 #define VID_HBP_TIME 0x4C /* Horizontal Back Porch time */
50 #define VID_HLINE_TIME 0x50 /* Line time */
51 #define VID_VSA_LINES 0x54 /* Vertical Sync Active period */
52 #define VID_VBP_LINES 0x58 /* Vertical Back Porch period */
53 #define VID_VFP_LINES 0x5C /* Vertical Front Porch period */
54 #define VID_VACTIVE_LINES 0x60 /* Vertical resolution */
55 #define VID_PKT_SIZE 0x3C /* Video packet size */
56 #define VID_MODE_CFG 0x38 /* Video mode configuration */
57 #define PHY_TMR_CFG 0x9C /* Data lanes timing configuration */
58 #define BTA_TO_CNT 0x8C /* Response timeout definition */
59 #define PHY_TMR_LPCLK_CFG 0x98 /* clock lane timing configuration */
60 #define CLK_DATA_TMR_CFG 0xCC
61 #define LPCLK_CTRL 0x94 /* Low-power in clock lane */
62 #define PHY_TXREQUESTCLKHS BIT(0)
63 #define MODE_CFG 0x34 /* Video or Command mode selection */
64 #define PHY_STATUS 0xB0 /* D-PHY PPI status interface */
65
66 #define PHY_STOP_WAIT_TIME 0x30
67
68 /*
69 * regs relevant enum
70 */
71 enum dpi_color_coding {
72 DSI_24BITS_1 = 5,
73 };
74
75 enum dsi_video_mode_type {
76 DSI_NON_BURST_SYNC_PULSES = 0,
77 DSI_NON_BURST_SYNC_EVENTS,
78 DSI_BURST_SYNC_PULSES_1,
79 DSI_BURST_SYNC_PULSES_2
80 };
81
82 enum dsi_work_mode {
83 DSI_VIDEO_MODE = 0,
84 DSI_COMMAND_MODE
85 };
86
87 /*
88 * Register Write/Read Helper functions
89 */
dw_update_bits(void __iomem * addr,u32 bit_start,u32 mask,u32 val)90 static inline void dw_update_bits(void __iomem *addr, u32 bit_start,
91 u32 mask, u32 val)
92 {
93 u32 tmp, orig;
94
95 orig = readl(addr);
96 tmp = orig & ~(mask << bit_start);
97 tmp |= (val & mask) << bit_start;
98 writel(tmp, addr);
99 }
100
101 #endif /* __DW_DRM_DSI_H__ */
102