1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
|
/*
* Copyright (C) 2012 Samsung Electronics
*
* Author: InKi Dae <inki.dae@samsung.com>
* Author: Donghwa Lee <dh09.lee@samsung.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <config.h>
#include <common.h>
#include <lcd.h>
#include <fdtdec.h>
#include <libfdt.h>
#include <asm/io.h>
#include <asm/arch/cpu.h>
#include <asm/arch/clock.h>
#include <asm/arch/clk.h>
#include <asm/arch/mipi_dsim.h>
#include <asm/arch/dp_info.h>
#include <asm/arch/system.h>
#include <asm-generic/errno.h>
#include "exynos_fb.h"
DECLARE_GLOBAL_DATA_PTR;
static unsigned int panel_width, panel_height;
#ifdef CONFIG_OF_CONTROL
vidinfo_t panel_info = {
/*
* Insert a value here so that we don't end up in the BSS
* Reference: drivers/video/tegra.c
*/
.vl_col = -1,
};
#endif
ushort *configuration_get_cmap(void)
{
#if defined(CONFIG_LCD_LOGO)
return bmp_logo_palette;
#else
return NULL;
#endif
}
static void exynos_lcd_init_mem(void *lcdbase, vidinfo_t *vid)
{
unsigned long palette_size;
unsigned int fb_size;
fb_size = vid->vl_row * vid->vl_col * (NBITS(vid->vl_bpix) >> 3);
palette_size = NBITS(vid->vl_bpix) == 8 ? 256 : 16;
exynos_fimd_lcd_init_mem((unsigned long)lcdbase,
(unsigned long)fb_size, palette_size);
}
static void exynos_lcd_init(vidinfo_t *vid)
{
exynos_fimd_lcd_init(vid);
/* Enable flushing after LCD writes if requested */
lcd_set_flush_dcache(1);
}
__weak void exynos_cfg_lcd_gpio(void)
{
}
__weak void exynos_backlight_on(unsigned int onoff)
{
}
__weak void exynos_reset_lcd(void)
{
}
__weak void exynos_lcd_power_on(void)
{
}
__weak void exynos_cfg_ldo(void)
{
}
__weak void exynos_enable_ldo(unsigned int onoff)
{
}
__weak void exynos_backlight_reset(void)
{
}
__weak int exynos_lcd_misc_init(vidinfo_t *vid)
{
return 0;
}
static void lcd_panel_on(vidinfo_t *vid)
{
udelay(vid->init_delay);
exynos_backlight_reset();
exynos_cfg_lcd_gpio();
exynos_lcd_power_on();
udelay(vid->power_on_delay);
if (vid->dp_enabled)
exynos_init_dp();
exynos_reset_lcd();
udelay(vid->reset_delay);
exynos_backlight_on(1);
exynos_cfg_ldo();
exynos_enable_ldo(1);
if (vid->mipi_enabled)
exynos_mipi_dsi_init();
}
#ifdef CONFIG_OF_CONTROL
int exynos_lcd_early_init(const void *blob)
{
unsigned int node;
node = fdtdec_next_compatible(blob, 0, COMPAT_SAMSUNG_EXYNOS_FIMD);
if (node <= 0) {
debug("exynos_fb: Can't get device node for fimd\n");
return -ENODEV;
}
panel_info.vl_col = fdtdec_get_int(blob, node, "samsung,vl-col", 0);
if (panel_info.vl_col == 0) {
debug("Can't get XRES\n");
return -ENXIO;
}
panel_info.vl_row = fdtdec_get_int(blob, node, "samsung,vl-row", 0);
if (panel_info.vl_row == 0) {
debug("Can't get YRES\n");
return -ENXIO;
}
panel_info.vl_width = fdtdec_get_int(blob, node,
"samsung,vl-width", 0);
panel_info.vl_height = fdtdec_get_int(blob, node,
"samsung,vl-height", 0);
panel_info.vl_freq = fdtdec_get_int(blob, node, "samsung,vl-freq", 0);
if (panel_info.vl_freq == 0) {
debug("Can't get refresh rate\n");
return -ENXIO;
}
if (fdtdec_get_bool(blob, node, "samsung,vl-clkp"))
panel_info.vl_clkp = CONFIG_SYS_LOW;
if (fdtdec_get_bool(blob, node, "samsung,vl-oep"))
panel_info.vl_oep = CONFIG_SYS_LOW;
if (fdtdec_get_bool(blob, node, "samsung,vl-hsp"))
panel_info.vl_hsp = CONFIG_SYS_LOW;
if (fdtdec_get_bool(blob, node, "samsung,vl-vsp"))
panel_info.vl_vsp = CONFIG_SYS_LOW;
if (fdtdec_get_bool(blob, node, "samsung,vl-dp"))
panel_info.vl_dp = CONFIG_SYS_LOW;
panel_info.vl_bpix = fdtdec_get_int(blob, node, "samsung,vl-bpix", 0);
if (panel_info.vl_bpix == 0) {
debug("Can't get bits per pixel\n");
return -ENXIO;
}
panel_info.vl_hspw = fdtdec_get_int(blob, node, "samsung,vl-hspw", 0);
if (panel_info.vl_hspw == 0) {
debug("Can't get hsync width\n");
return -ENXIO;
}
panel_info.vl_hfpd = fdtdec_get_int(blob, node, "samsung,vl-hfpd", 0);
if (panel_info.vl_hfpd == 0) {
debug("Can't get right margin\n");
return -ENXIO;
}
panel_info.vl_hbpd = (u_char)fdtdec_get_int(blob, node,
"samsung,vl-hbpd", 0);
if (panel_info.vl_hbpd == 0) {
debug("Can't get left margin\n");
return -ENXIO;
}
panel_info.vl_vspw = (u_char)fdtdec_get_int(blob, node,
"samsung,vl-vspw", 0);
if (panel_info.vl_vspw == 0) {
debug("Can't get vsync width\n");
return -ENXIO;
}
panel_info.vl_vfpd = fdtdec_get_int(blob, node,
"samsung,vl-vfpd", 0);
if (panel_info.vl_vfpd == 0) {
debug("Can't get lower margin\n");
return -ENXIO;
}
panel_info.vl_vbpd = fdtdec_get_int(blob, node, "samsung,vl-vbpd", 0);
if (panel_info.vl_vbpd == 0) {
debug("Can't get upper margin\n");
return -ENXIO;
}
panel_info.vl_cmd_allow_len = fdtdec_get_int(blob, node,
"samsung,vl-cmd-allow-len", 0);
panel_info.win_id = fdtdec_get_int(blob, node, "samsung,winid", 0);
panel_info.init_delay = fdtdec_get_int(blob, node,
"samsung,init-delay", 0);
panel_info.power_on_delay = fdtdec_get_int(blob, node,
"samsung,power-on-delay", 0);
panel_info.reset_delay = fdtdec_get_int(blob, node,
"samsung,reset-delay", 0);
panel_info.interface_mode = fdtdec_get_int(blob, node,
"samsung,interface-mode", 0);
panel_info.mipi_enabled = fdtdec_get_int(blob, node,
"samsung,mipi-enabled", 0);
panel_info.dp_enabled = fdtdec_get_int(blob, node,
"samsung,dp-enabled", 0);
panel_info.cs_setup = fdtdec_get_int(blob, node,
"samsung,cs-setup", 0);
panel_info.wr_setup = fdtdec_get_int(blob, node,
"samsung,wr-setup", 0);
panel_info.wr_act = fdtdec_get_int(blob, node, "samsung,wr-act", 0);
panel_info.wr_hold = fdtdec_get_int(blob, node, "samsung,wr-hold", 0);
panel_info.logo_on = fdtdec_get_int(blob, node, "samsung,logo-on", 0);
if (panel_info.logo_on) {
panel_info.logo_width = fdtdec_get_int(blob, node,
"samsung,logo-width", 0);
panel_info.logo_height = fdtdec_get_int(blob, node,
"samsung,logo-height", 0);
panel_info.logo_addr = fdtdec_get_int(blob, node,
"samsung,logo-addr", 0);
}
panel_info.rgb_mode = fdtdec_get_int(blob, node,
"samsung,rgb-mode", 0);
panel_info.pclk_name = fdtdec_get_int(blob, node,
"samsung,pclk-name", 0);
panel_info.sclk_div = fdtdec_get_int(blob, node,
"samsung,sclk-div", 0);
panel_info.dual_lcd_enabled = fdtdec_get_int(blob, node,
"samsung,dual-lcd-enabled", 0);
return 0;
}
#endif
void lcd_ctrl_init(void *lcdbase)
{
set_system_display_ctrl();
set_lcd_clk();
#ifdef CONFIG_OF_CONTROL
#ifdef CONFIG_EXYNOS_MIPI_DSIM
exynos_init_dsim_platform_data(&panel_info);
#endif
exynos_lcd_misc_init(&panel_info);
#else
/* initialize parameters which is specific to panel. */
init_panel_info(&panel_info);
#endif
panel_width = panel_info.vl_width;
panel_height = panel_info.vl_height;
exynos_lcd_init_mem(lcdbase, &panel_info);
exynos_lcd_init(&panel_info);
}
void lcd_enable(void)
{
if (panel_info.logo_on) {
memset((void *) gd->fb_base, 0, panel_width * panel_height *
(NBITS(panel_info.vl_bpix) >> 3));
}
lcd_panel_on(&panel_info);
}
/* dummy function */
void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blue)
{
return;
}
|
