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Commit | Line | Data |
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d2912cb1 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
1da177e4 LT |
2 | /* |
3 | * Support for the w100 frame buffer. | |
4 | * | |
aac51f09 RP |
5 | * Copyright (c) 2004-2005 Richard Purdie |
6 | * Copyright (c) 2005 Ian Molton | |
1da177e4 LT |
7 | */ |
8 | ||
aac51f09 RP |
9 | #define W100_GPIO_PORT_A 0 |
10 | #define W100_GPIO_PORT_B 1 | |
11 | ||
12 | #define CLK_SRC_XTAL 0 | |
13 | #define CLK_SRC_PLL 1 | |
14 | ||
15 | struct w100fb_par; | |
16 | ||
17 | unsigned long w100fb_gpio_read(int port); | |
18 | void w100fb_gpio_write(int port, unsigned long value); | |
513b6e1a | 19 | unsigned long w100fb_get_hsynclen(struct device *dev); |
aac51f09 RP |
20 | |
21 | /* LCD Specific Routines and Config */ | |
22 | struct w100_tg_info { | |
23 | void (*change)(struct w100fb_par*); | |
24 | void (*suspend)(struct w100fb_par*); | |
25 | void (*resume)(struct w100fb_par*); | |
26 | }; | |
27 | ||
28 | /* General Platform Specific w100 Register Values */ | |
29 | struct w100_gen_regs { | |
30 | unsigned long lcd_format; | |
31 | unsigned long lcdd_cntl1; | |
32 | unsigned long lcdd_cntl2; | |
33 | unsigned long genlcd_cntl1; | |
34 | unsigned long genlcd_cntl2; | |
35 | unsigned long genlcd_cntl3; | |
36 | }; | |
37 | ||
38 | struct w100_gpio_regs { | |
39 | unsigned long init_data1; | |
40 | unsigned long init_data2; | |
41 | unsigned long gpio_dir1; | |
42 | unsigned long gpio_oe1; | |
43 | unsigned long gpio_dir2; | |
44 | unsigned long gpio_oe2; | |
45 | }; | |
46 | ||
47 | /* Optional External Memory Configuration */ | |
48 | struct w100_mem_info { | |
49 | unsigned long ext_cntl; | |
50 | unsigned long sdram_mode_reg; | |
51 | unsigned long ext_timing_cntl; | |
52 | unsigned long io_cntl; | |
53 | unsigned int size; | |
54 | }; | |
55 | ||
56 | struct w100_bm_mem_info { | |
57 | unsigned long ext_mem_bw; | |
58 | unsigned long offset; | |
59 | unsigned long ext_timing_ctl; | |
60 | unsigned long ext_cntl; | |
61 | unsigned long mode_reg; | |
62 | unsigned long io_cntl; | |
63 | unsigned long config; | |
64 | }; | |
65 | ||
66 | /* LCD Mode definition */ | |
67 | struct w100_mode { | |
68 | unsigned int xres; | |
69 | unsigned int yres; | |
70 | unsigned short left_margin; | |
71 | unsigned short right_margin; | |
72 | unsigned short upper_margin; | |
73 | unsigned short lower_margin; | |
74 | unsigned long crtc_ss; | |
75 | unsigned long crtc_ls; | |
76 | unsigned long crtc_gs; | |
77 | unsigned long crtc_vpos_gs; | |
78 | unsigned long crtc_rev; | |
79 | unsigned long crtc_dclk; | |
80 | unsigned long crtc_gclk; | |
81 | unsigned long crtc_goe; | |
82 | unsigned long crtc_ps1_active; | |
83 | char pll_freq; | |
84 | char fast_pll_freq; | |
85 | int sysclk_src; | |
86 | int sysclk_divider; | |
87 | int pixclk_src; | |
88 | int pixclk_divider; | |
89 | int pixclk_divider_rotated; | |
90 | }; | |
91 | ||
92 | struct w100_pll_info { | |
93 | uint16_t freq; /* desired Fout for PLL (Mhz) */ | |
94 | uint8_t M; /* input divider */ | |
95 | uint8_t N_int; /* VCO multiplier */ | |
96 | uint8_t N_fac; /* VCO multiplier fractional part */ | |
97 | uint8_t tfgoal; | |
98 | uint8_t lock_time; | |
99 | }; | |
100 | ||
101 | /* Initial Video mode orientation flags */ | |
102 | #define INIT_MODE_ROTATED 0x1 | |
103 | #define INIT_MODE_FLIPPED 0x2 | |
104 | ||
1da177e4 LT |
105 | /* |
106 | * This structure describes the machine which we are running on. | |
107 | * It is set by machine specific code and used in the probe routine | |
108 | * of drivers/video/w100fb.c | |
109 | */ | |
1da177e4 | 110 | struct w100fb_mach_info { |
aac51f09 RP |
111 | /* General Platform Specific Registers */ |
112 | struct w100_gen_regs *regs; | |
113 | /* Table of modes the LCD is capable of */ | |
114 | struct w100_mode *modelist; | |
115 | unsigned int num_modes; | |
116 | /* Hooks for any platform specific tg/lcd code (optional) */ | |
117 | struct w100_tg_info *tg; | |
118 | /* External memory definition (if present) */ | |
119 | struct w100_mem_info *mem; | |
120 | /* Additional External memory definition (if present) */ | |
121 | struct w100_bm_mem_info *bm_mem; | |
122 | /* GPIO definitions (optional) */ | |
123 | struct w100_gpio_regs *gpio; | |
124 | /* Initial Mode flags */ | |
125 | unsigned int init_mode; | |
126 | /* Xtal Frequency */ | |
127 | unsigned int xtal_freq; | |
128 | /* Enable Xtal input doubler (1 == enable) */ | |
129 | unsigned int xtal_dbl; | |
130 | }; | |
131 | ||
132 | /* General frame buffer data structure */ | |
133 | struct w100fb_par { | |
134 | unsigned int chip_id; | |
135 | unsigned int xres; | |
136 | unsigned int yres; | |
137 | unsigned int extmem_active; | |
138 | unsigned int flip; | |
139 | unsigned int blanked; | |
140 | unsigned int fastpll_mode; | |
141 | unsigned long hsync_len; | |
142 | struct w100_mode *mode; | |
143 | struct w100_pll_info *pll_table; | |
144 | struct w100fb_mach_info *mach; | |
145 | uint32_t *saved_intmem; | |
146 | uint32_t *saved_extmem; | |
1da177e4 | 147 | }; |