xref: /openbmc/linux/drivers/gpu/drm/mxsfb/mxsfb_regs.h (revision b830f94f)
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * Copyright (C) 2010 Juergen Beisert, Pengutronix
4  * Copyright (C) 2016 Marek Vasut <marex@denx.de>
5  *
6  * i.MX23/i.MX28/i.MX6SX MXSFB LCD controller driver.
7  */
8 
9 #ifndef __MXSFB_REGS_H__
10 #define __MXSFB_REGS_H__
11 
12 #define REG_SET	4
13 #define REG_CLR	8
14 
15 #define LCDC_CTRL			0x00
16 #define LCDC_CTRL1			0x10
17 #define LCDC_V3_TRANSFER_COUNT		0x20
18 #define LCDC_V4_TRANSFER_COUNT		0x30
19 #define LCDC_V4_CUR_BUF			0x40
20 #define LCDC_V4_NEXT_BUF		0x50
21 #define LCDC_V3_CUR_BUF			0x30
22 #define LCDC_V3_NEXT_BUF		0x40
23 #define LCDC_VDCTRL0			0x70
24 #define LCDC_VDCTRL1			0x80
25 #define LCDC_VDCTRL2			0x90
26 #define LCDC_VDCTRL3			0xa0
27 #define LCDC_VDCTRL4			0xb0
28 #define LCDC_V4_DEBUG0			0x1d0
29 #define LCDC_V3_DEBUG0			0x1f0
30 
31 #define CTRL_SFTRST			(1 << 31)
32 #define CTRL_CLKGATE			(1 << 30)
33 #define CTRL_BYPASS_COUNT		(1 << 19)
34 #define CTRL_VSYNC_MODE			(1 << 18)
35 #define CTRL_DOTCLK_MODE		(1 << 17)
36 #define CTRL_DATA_SELECT		(1 << 16)
37 #define CTRL_SET_BUS_WIDTH(x)		(((x) & 0x3) << 10)
38 #define CTRL_GET_BUS_WIDTH(x)		(((x) >> 10) & 0x3)
39 #define CTRL_BUS_WIDTH_MASK		(0x3 << 10)
40 #define CTRL_SET_WORD_LENGTH(x)		(((x) & 0x3) << 8)
41 #define CTRL_GET_WORD_LENGTH(x)		(((x) >> 8) & 0x3)
42 #define CTRL_MASTER			(1 << 5)
43 #define CTRL_DF16			(1 << 3)
44 #define CTRL_DF18			(1 << 2)
45 #define CTRL_DF24			(1 << 1)
46 #define CTRL_RUN			(1 << 0)
47 
48 #define CTRL1_FIFO_CLEAR		(1 << 21)
49 #define CTRL1_SET_BYTE_PACKAGING(x)	(((x) & 0xf) << 16)
50 #define CTRL1_GET_BYTE_PACKAGING(x)	(((x) >> 16) & 0xf)
51 #define CTRL1_CUR_FRAME_DONE_IRQ_EN	(1 << 13)
52 #define CTRL1_CUR_FRAME_DONE_IRQ	(1 << 9)
53 
54 #define TRANSFER_COUNT_SET_VCOUNT(x)	(((x) & 0xffff) << 16)
55 #define TRANSFER_COUNT_GET_VCOUNT(x)	(((x) >> 16) & 0xffff)
56 #define TRANSFER_COUNT_SET_HCOUNT(x)	((x) & 0xffff)
57 #define TRANSFER_COUNT_GET_HCOUNT(x)	((x) & 0xffff)
58 
59 #define VDCTRL0_ENABLE_PRESENT		(1 << 28)
60 #define VDCTRL0_VSYNC_ACT_HIGH		(1 << 27)
61 #define VDCTRL0_HSYNC_ACT_HIGH		(1 << 26)
62 #define VDCTRL0_DOTCLK_ACT_FALLING	(1 << 25)
63 #define VDCTRL0_ENABLE_ACT_HIGH		(1 << 24)
64 #define VDCTRL0_VSYNC_PERIOD_UNIT	(1 << 21)
65 #define VDCTRL0_VSYNC_PULSE_WIDTH_UNIT	(1 << 20)
66 #define VDCTRL0_HALF_LINE		(1 << 19)
67 #define VDCTRL0_HALF_LINE_MODE		(1 << 18)
68 #define VDCTRL0_SET_VSYNC_PULSE_WIDTH(x) ((x) & 0x3ffff)
69 #define VDCTRL0_GET_VSYNC_PULSE_WIDTH(x) ((x) & 0x3ffff)
70 
71 #define VDCTRL2_SET_HSYNC_PERIOD(x)	((x) & 0x3ffff)
72 #define VDCTRL2_GET_HSYNC_PERIOD(x)	((x) & 0x3ffff)
73 
74 #define VDCTRL3_MUX_SYNC_SIGNALS	(1 << 29)
75 #define VDCTRL3_VSYNC_ONLY		(1 << 28)
76 #define SET_HOR_WAIT_CNT(x)		(((x) & 0xfff) << 16)
77 #define GET_HOR_WAIT_CNT(x)		(((x) >> 16) & 0xfff)
78 #define SET_VERT_WAIT_CNT(x)		((x) & 0xffff)
79 #define GET_VERT_WAIT_CNT(x)		((x) & 0xffff)
80 
81 #define VDCTRL4_SET_DOTCLK_DLY(x)	(((x) & 0x7) << 29) /* v4 only */
82 #define VDCTRL4_GET_DOTCLK_DLY(x)	(((x) >> 29) & 0x7) /* v4 only */
83 #define VDCTRL4_SYNC_SIGNALS_ON		(1 << 18)
84 #define SET_DOTCLK_H_VALID_DATA_CNT(x)	((x) & 0x3ffff)
85 
86 #define DEBUG0_HSYNC			(1 < 26)
87 #define DEBUG0_VSYNC			(1 < 25)
88 
89 #define MXSFB_MIN_XRES			120
90 #define MXSFB_MIN_YRES			120
91 #define MXSFB_MAX_XRES			0xffff
92 #define MXSFB_MAX_YRES			0xffff
93 
94 #define RED 0
95 #define GREEN 1
96 #define BLUE 2
97 #define TRANSP 3
98 
99 #define STMLCDIF_8BIT  1 /* pixel data bus to the display is of 8 bit width */
100 #define STMLCDIF_16BIT 0 /* pixel data bus to the display is of 16 bit width */
101 #define STMLCDIF_18BIT 2 /* pixel data bus to the display is of 18 bit width */
102 #define STMLCDIF_24BIT 3 /* pixel data bus to the display is of 24 bit width */
103 
104 #define MXSFB_SYNC_DATA_ENABLE_HIGH_ACT	(1 << 6)
105 #define MXSFB_SYNC_DOTCLK_FALLING_ACT	(1 << 7) /* negative edge sampling */
106 
107 #endif /* __MXSFB_REGS_H__ */
108