1/*
2 * Copyright (C) 2013,2014 ARM Limited
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file COPYING in the main directory of this archive
6 * for more details.
7 *
8 * ARM HDLCD Controller register definition
9 */
10
11#ifndef __HDLCD_REGS_H__
12#define __HDLCD_REGS_H__
13
14/* register offsets */
15#define HDLCD_REG_VERSION 0x0000 /* ro */
16#define HDLCD_REG_INT_RAWSTAT 0x0010 /* rw */
17#define HDLCD_REG_INT_CLEAR 0x0014 /* wo */
18#define HDLCD_REG_INT_MASK 0x0018 /* rw */
19#define HDLCD_REG_INT_STATUS 0x001c /* ro */
20#define HDLCD_REG_FB_BASE 0x0100 /* rw */
21#define HDLCD_REG_FB_LINE_LENGTH 0x0104 /* rw */
22#define HDLCD_REG_FB_LINE_COUNT 0x0108 /* rw */
23#define HDLCD_REG_FB_LINE_PITCH 0x010c /* rw */
24#define HDLCD_REG_BUS_OPTIONS 0x0110 /* rw */
25#define HDLCD_REG_V_SYNC 0x0200 /* rw */
26#define HDLCD_REG_V_BACK_PORCH 0x0204 /* rw */
27#define HDLCD_REG_V_DATA 0x0208 /* rw */
28#define HDLCD_REG_V_FRONT_PORCH 0x020c /* rw */
29#define HDLCD_REG_H_SYNC 0x0210 /* rw */
30#define HDLCD_REG_H_BACK_PORCH 0x0214 /* rw */
31#define HDLCD_REG_H_DATA 0x0218 /* rw */
32#define HDLCD_REG_H_FRONT_PORCH 0x021c /* rw */
33#define HDLCD_REG_POLARITIES 0x0220 /* rw */
34#define HDLCD_REG_COMMAND 0x0230 /* rw */
35#define HDLCD_REG_PIXEL_FORMAT 0x0240 /* rw */
36#define HDLCD_REG_RED_SELECT 0x0244 /* rw */
37#define HDLCD_REG_GREEN_SELECT 0x0248 /* rw */
38#define HDLCD_REG_BLUE_SELECT 0x024c /* rw */
39
40/* version */
41#define HDLCD_PRODUCT_ID 0x1CDC0000
42#define HDLCD_PRODUCT_MASK 0xFFFF0000
43#define HDLCD_VERSION_MAJOR_MASK 0x0000FF00
44#define HDLCD_VERSION_MINOR_MASK 0x000000FF
45
46/* interrupts */
47#define HDLCD_INTERRUPT_DMA_END (1 << 0)
48#define HDLCD_INTERRUPT_BUS_ERROR (1 << 1)
49#define HDLCD_INTERRUPT_VSYNC (1 << 2)
50#define HDLCD_INTERRUPT_UNDERRUN (1 << 3)
51#define HDLCD_DEBUG_INT_MASK (HDLCD_INTERRUPT_DMA_END | \
52 HDLCD_INTERRUPT_BUS_ERROR | \
53 HDLCD_INTERRUPT_UNDERRUN)
54
55/* polarities */
56#define HDLCD_POLARITY_VSYNC (1 << 0)
57#define HDLCD_POLARITY_HSYNC (1 << 1)
58#define HDLCD_POLARITY_DATAEN (1 << 2)
59#define HDLCD_POLARITY_DATA (1 << 3)
60#define HDLCD_POLARITY_PIXELCLK (1 << 4)
61
62/* commands */
63#define HDLCD_COMMAND_DISABLE (0 << 0)
64#define HDLCD_COMMAND_ENABLE (1 << 0)
65
66/* pixel format */
67#define HDLCD_PIXEL_FMT_LITTLE_ENDIAN (0 << 31)
68#define HDLCD_PIXEL_FMT_BIG_ENDIAN (1 << 31)
69#define HDLCD_BYTES_PER_PIXEL_MASK (3 << 3)
70
71/* bus options */
72#define HDLCD_BUS_BURST_MASK 0x01f
73#define HDLCD_BUS_MAX_OUTSTAND 0xf00
74#define HDLCD_BUS_BURST_NONE (0 << 0)
75#define HDLCD_BUS_BURST_1 (1 << 0)
76#define HDLCD_BUS_BURST_2 (1 << 1)
77#define HDLCD_BUS_BURST_4 (1 << 2)
78#define HDLCD_BUS_BURST_8 (1 << 3)
79#define HDLCD_BUS_BURST_16 (1 << 4)
80
81/* Max resolution supported is 4096x4096, 32bpp */
82#define HDLCD_MAX_XRES 4096
83#define HDLCD_MAX_YRES 4096
84
85#define NR_PALETTE 256
86
87#endif /* __HDLCD_REGS_H__ */
88

source code of linux/drivers/gpu/drm/arm/hdlcd_regs.h