blob: fef49c1fe0538b53d338bdb17d018682475bbd8a [file] [log] [blame]
wdenk7a428cc2003-06-15 22:40:42 +00001/*
wdenk9ca7bbc2004-10-09 23:25:58 +00002 * PXA LCD Controller
3 *
wdenk7a428cc2003-06-15 22:40:42 +00004 * (C) Copyright 2001-2002
5 * Wolfgang Denk, DENX Software Engineering -- wd@denx.de
6 *
7 * See file CREDITS for list of people who contributed to this
8 * project.
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of
13 * the License, or (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
23 * MA 02111-1307 USA
24 */
25
26/************************************************************************/
27/* ** HEADER FILES */
28/************************************************************************/
29
wdenk7a428cc2003-06-15 22:40:42 +000030#include <config.h>
31#include <common.h>
32#include <version.h>
33#include <stdarg.h>
wdenk7a428cc2003-06-15 22:40:42 +000034#include <linux/types.h>
Jean-Christophe PLAGNIOL-VILLARD2a7a0312009-05-16 12:14:54 +020035#include <stdio_dev.h>
wdenk9ca7bbc2004-10-09 23:25:58 +000036#include <lcd.h>
wdenk7a428cc2003-06-15 22:40:42 +000037#include <asm/arch/pxa-regs.h>
Marek Vasut2db1e962010-09-09 09:50:39 +020038#include <asm/io.h>
wdenk7a428cc2003-06-15 22:40:42 +000039
wdenk9ca7bbc2004-10-09 23:25:58 +000040/* #define DEBUG */
wdenk7a428cc2003-06-15 22:40:42 +000041
wdenk9ca7bbc2004-10-09 23:25:58 +000042#ifdef CONFIG_LCD
wdenk7a428cc2003-06-15 22:40:42 +000043
44/*----------------------------------------------------------------------*/
wdenk7a428cc2003-06-15 22:40:42 +000045/*
wdenk9ca7bbc2004-10-09 23:25:58 +000046 * Define panel bpp, LCCR0, LCCR3 and panel_info video struct for
47 * your display.
wdenk7a428cc2003-06-15 22:40:42 +000048 */
49
wdenk9ca7bbc2004-10-09 23:25:58 +000050#ifdef CONFIG_PXA_VGA
51/* LCD outputs connected to a video DAC */
52# define LCD_BPP LCD_COLOR8
wdenk7a428cc2003-06-15 22:40:42 +000053
54/* you have to set lccr0 and lccr3 (including pcd) */
wdenk9ca7bbc2004-10-09 23:25:58 +000055# define REG_LCCR0 0x003008f8
56# define REG_LCCR3 0x0300FF01
wdenk7a428cc2003-06-15 22:40:42 +000057
58/* 640x480x16 @ 61 Hz */
wdenk9ca7bbc2004-10-09 23:25:58 +000059vidinfo_t panel_info = {
Marek Vasut8c4a26e2010-09-23 08:32:54 +020060 .vl_col = 640,
61 .vl_row = 480,
62 .vl_width = 640,
63 .vl_height = 480,
64 .vl_clkp = CONFIG_SYS_HIGH,
65 .vl_oep = CONFIG_SYS_HIGH,
66 .vl_hsp = CONFIG_SYS_HIGH,
67 .vl_vsp = CONFIG_SYS_HIGH,
68 .vl_dp = CONFIG_SYS_HIGH,
69 .vl_bpix = LCD_BPP,
70 .vl_lbw = 0,
71 .vl_splt = 0,
72 .vl_clor = 0,
73 .vl_tft = 1,
74 .vl_hpw = 40,
75 .vl_blw = 56,
76 .vl_elw = 56,
77 .vl_vpw = 20,
78 .vl_bfw = 8,
79 .vl_efw = 8,
wdenk7a428cc2003-06-15 22:40:42 +000080};
81#endif /* CONFIG_PXA_VIDEO */
82
wdenk9ca7bbc2004-10-09 23:25:58 +000083/*----------------------------------------------------------------------*/
wdenk7a428cc2003-06-15 22:40:42 +000084#ifdef CONFIG_SHARP_LM8V31
85
wdenk9ca7bbc2004-10-09 23:25:58 +000086# define LCD_BPP LCD_COLOR8
87# define LCD_INVERT_COLORS /* Needed for colors to be correct, but why? */
wdenk7a428cc2003-06-15 22:40:42 +000088
89/* you have to set lccr0 and lccr3 (including pcd) */
wdenk9ca7bbc2004-10-09 23:25:58 +000090# define REG_LCCR0 0x0030087C
91# define REG_LCCR3 0x0340FF08
wdenk7a428cc2003-06-15 22:40:42 +000092
wdenk9ca7bbc2004-10-09 23:25:58 +000093vidinfo_t panel_info = {
Marek Vasut8c4a26e2010-09-23 08:32:54 +020094 .vl_col = 640,
95 .vl_row = 480,
96 .vl_width = 157,
97 .vl_height = 118,
98 .vl_clkp = CONFIG_SYS_HIGH,
99 .vl_oep = CONFIG_SYS_HIGH,
100 .vl_hsp = CONFIG_SYS_HIGH,
101 .vl_vsp = CONFIG_SYS_HIGH,
102 .vl_dp = CONFIG_SYS_HIGH,
103 .vl_bpix = LCD_BPP,
104 .vl_lbw = 0,
105 .vl_splt = 1,
106 .vl_clor = 1,
107 .vl_tft = 0,
108 .vl_hpw = 1,
109 .vl_blw = 3,
110 .vl_elw = 3,
111 .vl_vpw = 1,
112 .vl_bfw = 0,
113 .vl_efw = 0,
wdenk7a428cc2003-06-15 22:40:42 +0000114};
115#endif /* CONFIG_SHARP_LM8V31 */
Marek Vasut846d9b62010-03-07 23:35:48 +0100116/*----------------------------------------------------------------------*/
117#ifdef CONFIG_VOIPAC_LCD
118
119# define LCD_BPP LCD_COLOR8
120# define LCD_INVERT_COLORS
121
122/* you have to set lccr0 and lccr3 (including pcd) */
123# define REG_LCCR0 0x043008f8
124# define REG_LCCR3 0x0340FF08
125
126vidinfo_t panel_info = {
Marek Vasut8c4a26e2010-09-23 08:32:54 +0200127 .vl_col = 640,
128 .vl_row = 480,
129 .vl_width = 157,
130 .vl_height = 118,
131 .vl_clkp = CONFIG_SYS_HIGH,
132 .vl_oep = CONFIG_SYS_HIGH,
133 .vl_hsp = CONFIG_SYS_HIGH,
134 .vl_vsp = CONFIG_SYS_HIGH,
135 .vl_dp = CONFIG_SYS_HIGH,
136 .vl_bpix = LCD_BPP,
137 .vl_lbw = 0,
138 .vl_splt = 1,
139 .vl_clor = 1,
140 .vl_tft = 1,
141 .vl_hpw = 32,
142 .vl_blw = 144,
143 .vl_elw = 32,
144 .vl_vpw = 2,
145 .vl_bfw = 13,
146 .vl_efw = 30,
Marek Vasut846d9b62010-03-07 23:35:48 +0100147};
148#endif /* CONFIG_VOIPAC_LCD */
wdenk7a428cc2003-06-15 22:40:42 +0000149
150/*----------------------------------------------------------------------*/
wdenk9ca7bbc2004-10-09 23:25:58 +0000151#ifdef CONFIG_HITACHI_SX14
152/* Hitachi SX14Q004-ZZA color STN LCD */
153#define LCD_BPP LCD_COLOR8
wdenk7a428cc2003-06-15 22:40:42 +0000154
wdenk9ca7bbc2004-10-09 23:25:58 +0000155/* you have to set lccr0 and lccr3 (including pcd) */
156#define REG_LCCR0 0x00301079
157#define REG_LCCR3 0x0340FF20
wdenk7a428cc2003-06-15 22:40:42 +0000158
wdenk9ca7bbc2004-10-09 23:25:58 +0000159vidinfo_t panel_info = {
Marek Vasut8c4a26e2010-09-23 08:32:54 +0200160 .vl_col = 320,
161 .vl_row = 240,
162 .vl_width = 167,
163 .vl_height = 109,
164 .vl_clkp = CONFIG_SYS_HIGH,
165 .vl_oep = CONFIG_SYS_HIGH,
166 .vl_hsp = CONFIG_SYS_HIGH,
167 .vl_vsp = CONFIG_SYS_HIGH,
168 .vl_dp = CONFIG_SYS_HIGH,
169 .vl_bpix = LCD_BPP,
170 .vl_lbw = 1,
171 .vl_splt = 0,
172 .vl_clor = 1,
173 .vl_tft = 0,
174 .vl_hpw = 1,
175 .vl_blw = 1,
176 .vl_elw = 1,
177 .vl_vpw = 7,
178 .vl_bfw = 0,
179 .vl_efw = 0,
wdenk7a428cc2003-06-15 22:40:42 +0000180};
wdenk9ca7bbc2004-10-09 23:25:58 +0000181#endif /* CONFIG_HITACHI_SX14 */
wdenk7a428cc2003-06-15 22:40:42 +0000182
183/*----------------------------------------------------------------------*/
Marek Vasutc2e92e02010-07-03 09:38:03 +0200184#ifdef CONFIG_LMS283GF05
185
186# define LCD_BPP LCD_COLOR8
Wolfgang Denk34ed1092010-09-19 17:47:52 +0200187/*# define LCD_INVERT_COLORS*/
Marek Vasutc2e92e02010-07-03 09:38:03 +0200188
189/* you have to set lccr0 and lccr3 (including pcd) */
190# define REG_LCCR0 0x043008f8
191# define REG_LCCR3 0x03b00009
192
193vidinfo_t panel_info = {
Marek Vasut8c4a26e2010-09-23 08:32:54 +0200194 .vl_col = 240,
195 .vl_row = 320,
196 .vl_width = 240,
197 .vl_height = 320,
198 .vl_clkp = CONFIG_SYS_HIGH,
199 .vl_oep = CONFIG_SYS_LOW,
200 .vl_hsp = CONFIG_SYS_LOW,
201 .vl_vsp = CONFIG_SYS_LOW,
202 .vl_dp = CONFIG_SYS_HIGH,
203 .vl_bpix = LCD_BPP,
204 .vl_lbw = 0,
205 .vl_splt = 1,
206 .vl_clor = 1,
207 .vl_tft = 1,
208 .vl_hpw = 4,
209 .vl_blw = 4,
210 .vl_elw = 8,
211 .vl_vpw = 4,
212 .vl_bfw = 4,
213 .vl_efw = 8,
Marek Vasutc2e92e02010-07-03 09:38:03 +0200214};
215#endif /* CONFIG_LMS283GF05 */
216
217/*----------------------------------------------------------------------*/
wdenk7a428cc2003-06-15 22:40:42 +0000218
Marek Vasutabd23e82010-07-18 04:46:55 +0200219#ifdef CONFIG_ACX517AKN
220
221# define LCD_BPP LCD_COLOR8
222
223/* you have to set lccr0 and lccr3 (including pcd) */
224# define REG_LCCR0 0x003008f9
225# define REG_LCCR3 0x03700006
226
227vidinfo_t panel_info = {
228 .vl_col = 320,
229 .vl_row = 320,
230 .vl_width = 320,
231 .vl_height = 320,
232 .vl_clkp = CONFIG_SYS_HIGH,
233 .vl_oep = CONFIG_SYS_LOW,
234 .vl_hsp = CONFIG_SYS_LOW,
235 .vl_vsp = CONFIG_SYS_LOW,
236 .vl_dp = CONFIG_SYS_HIGH,
237 .vl_bpix = LCD_BPP,
238 .vl_lbw = 0,
239 .vl_splt = 1,
240 .vl_clor = 1,
241 .vl_tft = 1,
242 .vl_hpw = 0x04,
243 .vl_blw = 0x1c,
244 .vl_elw = 0x08,
245 .vl_vpw = 0x01,
246 .vl_bfw = 0x07,
247 .vl_efw = 0x08,
248};
249#endif /* CONFIG_ACX517AKN */
250
251/*----------------------------------------------------------------------*/
252
Marek Vasut916caf92010-07-19 11:21:38 +0200253#ifdef CONFIG_LQ038J7DH53
254
255# define LCD_BPP LCD_COLOR8
256
257/* you have to set lccr0 and lccr3 (including pcd) */
258# define REG_LCCR0 0x003008f9
259# define REG_LCCR3 0x03700004
260
261vidinfo_t panel_info = {
262 .vl_col = 320,
263 .vl_row = 480,
264 .vl_width = 320,
265 .vl_height = 480,
266 .vl_clkp = CONFIG_SYS_HIGH,
267 .vl_oep = CONFIG_SYS_LOW,
268 .vl_hsp = CONFIG_SYS_LOW,
269 .vl_vsp = CONFIG_SYS_LOW,
270 .vl_dp = CONFIG_SYS_HIGH,
271 .vl_bpix = LCD_BPP,
272 .vl_lbw = 0,
273 .vl_splt = 1,
274 .vl_clor = 1,
275 .vl_tft = 1,
276 .vl_hpw = 0x04,
277 .vl_blw = 0x20,
278 .vl_elw = 0x01,
279 .vl_vpw = 0x01,
280 .vl_bfw = 0x04,
281 .vl_efw = 0x01,
282};
283#endif /* CONFIG_ACX517AKN */
284
285/*----------------------------------------------------------------------*/
286
Marek Vasut2b35a8f2009-12-31 03:44:22 +0100287#ifdef CONFIG_LITTLETON_LCD
288# define LCD_BPP LCD_COLOR8
289
290/* you have to set lccr0 and lccr3 (including pcd) */
291# define REG_LCCR0 0x003008f8
292# define REG_LCCR3 0x0300FF04
293
294vidinfo_t panel_info = {
295 .vl_col = 480,
296 .vl_row = 640,
297 .vl_width = 480,
298 .vl_height = 640,
299 .vl_clkp = CONFIG_SYS_HIGH,
300 .vl_oep = CONFIG_SYS_HIGH,
301 .vl_hsp = CONFIG_SYS_HIGH,
302 .vl_vsp = CONFIG_SYS_HIGH,
303 .vl_dp = CONFIG_SYS_HIGH,
304 .vl_bpix = LCD_BPP,
305 .vl_lbw = 0,
306 .vl_splt = 0,
307 .vl_clor = 0,
308 .vl_tft = 1,
309 .vl_hpw = 9,
310 .vl_blw = 8,
311 .vl_elw = 24,
312 .vl_vpw = 2,
313 .vl_bfw = 2,
314 .vl_efw = 4,
315};
316#endif /* CONFIG_LITTLETON_LCD */
317
318/*----------------------------------------------------------------------*/
319
wdenk9ca7bbc2004-10-09 23:25:58 +0000320#if LCD_BPP == LCD_COLOR8
321void lcd_setcolreg (ushort regno, ushort red, ushort green, ushort blue);
322#endif
wdenk7a428cc2003-06-15 22:40:42 +0000323#if LCD_BPP == LCD_MONOCHROME
wdenk9ca7bbc2004-10-09 23:25:58 +0000324void lcd_initcolregs (void);
wdenk7a428cc2003-06-15 22:40:42 +0000325#endif
326
wdenk9ca7bbc2004-10-09 23:25:58 +0000327#ifdef NOT_USED_SO_FAR
328void lcd_disable (void);
329void lcd_getcolreg (ushort regno, ushort *red, ushort *green, ushort *blue);
330#endif /* NOT_USED_SO_FAR */
wdenk7a428cc2003-06-15 22:40:42 +0000331
wdenk9ca7bbc2004-10-09 23:25:58 +0000332void lcd_ctrl_init (void *lcdbase);
333void lcd_enable (void);
wdenk7a428cc2003-06-15 22:40:42 +0000334
wdenk9ca7bbc2004-10-09 23:25:58 +0000335static int pxafb_init_mem (void *lcdbase, vidinfo_t *vid);
336static void pxafb_setup_gpio (vidinfo_t *vid);
337static void pxafb_enable_controller (vidinfo_t *vid);
338static int pxafb_init (vidinfo_t *vid);
wdenk7a428cc2003-06-15 22:40:42 +0000339/************************************************************************/
340
wdenk7a428cc2003-06-15 22:40:42 +0000341/************************************************************************/
wdenk9ca7bbc2004-10-09 23:25:58 +0000342/* --------------- PXA chipset specific functions ------------------- */
wdenk7a428cc2003-06-15 22:40:42 +0000343/************************************************************************/
344
wdenk9ca7bbc2004-10-09 23:25:58 +0000345void lcd_ctrl_init (void *lcdbase)
wdenk7a428cc2003-06-15 22:40:42 +0000346{
wdenk57b2d802003-06-27 21:31:46 +0000347 pxafb_init_mem(lcdbase, &panel_info);
wdenk7a428cc2003-06-15 22:40:42 +0000348 pxafb_init(&panel_info);
349 pxafb_setup_gpio(&panel_info);
350 pxafb_enable_controller(&panel_info);
351}
352
353/*----------------------------------------------------------------------*/
wdenk9ca7bbc2004-10-09 23:25:58 +0000354#ifdef NOT_USED_SO_FAR
355void
wdenk7a428cc2003-06-15 22:40:42 +0000356lcd_getcolreg (ushort regno, ushort *red, ushort *green, ushort *blue)
357{
358}
wdenk9ca7bbc2004-10-09 23:25:58 +0000359#endif /* NOT_USED_SO_FAR */
wdenk7a428cc2003-06-15 22:40:42 +0000360
361/*----------------------------------------------------------------------*/
wdenk7a428cc2003-06-15 22:40:42 +0000362#if LCD_BPP == LCD_COLOR8
wdenk9ca7bbc2004-10-09 23:25:58 +0000363void
wdenk7a428cc2003-06-15 22:40:42 +0000364lcd_setcolreg (ushort regno, ushort red, ushort green, ushort blue)
365{
366 struct pxafb_info *fbi = &panel_info.pxa;
367 unsigned short *palette = (unsigned short *)fbi->palette;
368 u_int val;
wdenk57b2d802003-06-27 21:31:46 +0000369
wdenk7a428cc2003-06-15 22:40:42 +0000370 if (regno < fbi->palette_size) {
371 val = ((red << 8) & 0xf800);
372 val |= ((green << 4) & 0x07e0);
373 val |= (blue & 0x001f);
374
375#ifdef LCD_INVERT_COLORS
376 palette[regno] = ~val;
377#else
wdenk9ca7bbc2004-10-09 23:25:58 +0000378 palette[regno] = val;
wdenk7a428cc2003-06-15 22:40:42 +0000379#endif
380 }
381
382 debug ("setcolreg: reg %2d @ %p: R=%02X G=%02X B=%02X => %04X\n",
383 regno, &palette[regno],
384 red, green, blue,
385 palette[regno]);
386}
wdenk9ca7bbc2004-10-09 23:25:58 +0000387#endif /* LCD_COLOR8 */
wdenk7a428cc2003-06-15 22:40:42 +0000388
389/*----------------------------------------------------------------------*/
wdenk7a428cc2003-06-15 22:40:42 +0000390#if LCD_BPP == LCD_MONOCHROME
wdenk7a428cc2003-06-15 22:40:42 +0000391void lcd_initcolregs (void)
392{
wdenk9ca7bbc2004-10-09 23:25:58 +0000393 struct pxafb_info *fbi = &panel_info.pxa;
394 cmap = (ushort *)fbi->palette;
wdenk7a428cc2003-06-15 22:40:42 +0000395 ushort regno;
396
397 for (regno = 0; regno < 16; regno++) {
wdenk9ca7bbc2004-10-09 23:25:58 +0000398 cmap[regno * 2] = 0;
399 cmap[(regno * 2) + 1] = regno & 0x0f;
wdenk7a428cc2003-06-15 22:40:42 +0000400 }
401}
wdenk9ca7bbc2004-10-09 23:25:58 +0000402#endif /* LCD_MONOCHROME */
wdenk7a428cc2003-06-15 22:40:42 +0000403
404/*----------------------------------------------------------------------*/
wdenk9ca7bbc2004-10-09 23:25:58 +0000405void lcd_enable (void)
wdenk7a428cc2003-06-15 22:40:42 +0000406{
407}
408
409/*----------------------------------------------------------------------*/
wdenk7a428cc2003-06-15 22:40:42 +0000410#ifdef NOT_USED_SO_FAR
411static void lcd_disable (void)
412{
413}
wdenk9ca7bbc2004-10-09 23:25:58 +0000414#endif /* NOT_USED_SO_FAR */
wdenk7a428cc2003-06-15 22:40:42 +0000415
wdenk9ca7bbc2004-10-09 23:25:58 +0000416/*----------------------------------------------------------------------*/
wdenk7a428cc2003-06-15 22:40:42 +0000417
418/************************************************************************/
wdenk9ca7bbc2004-10-09 23:25:58 +0000419/* ** PXA255 specific routines */
wdenk7a428cc2003-06-15 22:40:42 +0000420/************************************************************************/
421
wdenk9ca7bbc2004-10-09 23:25:58 +0000422/*
423 * Calculate fb size for VIDEOLFB_ATAG. Size returned contains fb,
424 * descriptors and palette areas.
425 */
426ulong calc_fbsize (void)
wdenk7a428cc2003-06-15 22:40:42 +0000427{
wdenk9ca7bbc2004-10-09 23:25:58 +0000428 ulong size;
429 int line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
wdenk7a428cc2003-06-15 22:40:42 +0000430
wdenk9ca7bbc2004-10-09 23:25:58 +0000431 size = line_length * panel_info.vl_row;
432 size += PAGE_SIZE;
wdenk7a428cc2003-06-15 22:40:42 +0000433
wdenk9ca7bbc2004-10-09 23:25:58 +0000434 return size;
wdenk7a428cc2003-06-15 22:40:42 +0000435}
436
wdenk9ca7bbc2004-10-09 23:25:58 +0000437static int pxafb_init_mem (void *lcdbase, vidinfo_t *vid)
wdenk7a428cc2003-06-15 22:40:42 +0000438{
439 u_long palette_mem_size;
440 struct pxafb_info *fbi = &vid->pxa;
441 int fb_size = vid->vl_row * (vid->vl_col * NBITS (vid->vl_bpix)) / 8;
442
443 fbi->screen = (u_long)lcdbase;
444
445 fbi->palette_size = NBITS(vid->vl_bpix) == 8 ? 256 : 16;
446 palette_mem_size = fbi->palette_size * sizeof(u16);
wdenk9ca7bbc2004-10-09 23:25:58 +0000447
wdenk7a428cc2003-06-15 22:40:42 +0000448 debug("palette_mem_size = 0x%08lx\n", (u_long) palette_mem_size);
449 /* locate palette and descs at end of page following fb */
wdenk9ca7bbc2004-10-09 23:25:58 +0000450 fbi->palette = (u_long)lcdbase + fb_size + PAGE_SIZE - palette_mem_size;
wdenk7a428cc2003-06-15 22:40:42 +0000451
452 return 0;
453}
Marek Vasut23cf8e42009-11-28 13:57:43 +0100454#ifdef CONFIG_CPU_MONAHANS
455static inline void pxafb_setup_gpio (vidinfo_t *vid) {}
456#else
wdenk9ca7bbc2004-10-09 23:25:58 +0000457static void pxafb_setup_gpio (vidinfo_t *vid)
wdenk7a428cc2003-06-15 22:40:42 +0000458{
459 u_long lccr0;
460
461 /*
462 * setup is based on type of panel supported
463 */
464
465 lccr0 = vid->pxa.reg_lccr0;
466
467 /* 4 bit interface */
468 if ((lccr0 & LCCR0_CMS) && (lccr0 & LCCR0_SDS) && !(lccr0 & LCCR0_DPD))
469 {
470 debug("Setting GPIO for 4 bit data\n");
471 /* bits 58-61 */
Marek Vasut2db1e962010-09-09 09:50:39 +0200472 writel(readl(GPDR1) | (0xf << 26), GPDR1);
473 writel((readl(GAFR1_U) & ~(0xff << 20)) | (0xaa << 20),
474 GAFR1_U);
wdenk7a428cc2003-06-15 22:40:42 +0000475
476 /* bits 74-77 */
Marek Vasut2db1e962010-09-09 09:50:39 +0200477 writel(readl(GPDR2) | (0xf << 10), GPDR2);
478 writel((readl(GAFR2_L) & ~(0xff << 20)) | (0xaa << 20),
479 GAFR2_L);
wdenk7a428cc2003-06-15 22:40:42 +0000480 }
481
482 /* 8 bit interface */
483 else if (((lccr0 & LCCR0_CMS) && ((lccr0 & LCCR0_SDS) || (lccr0 & LCCR0_DPD))) ||
wdenk9ca7bbc2004-10-09 23:25:58 +0000484 (!(lccr0 & LCCR0_CMS) && !(lccr0 & LCCR0_PAS) && !(lccr0 & LCCR0_SDS)))
wdenk7a428cc2003-06-15 22:40:42 +0000485 {
486 debug("Setting GPIO for 8 bit data\n");
487 /* bits 58-65 */
Marek Vasut2db1e962010-09-09 09:50:39 +0200488 writel(readl(GPDR1) | (0x3f << 26), GPDR1);
489 writel(readl(GPDR2) | (0x3), GPDR2);
wdenk7a428cc2003-06-15 22:40:42 +0000490
Marek Vasut2db1e962010-09-09 09:50:39 +0200491 writel((readl(GAFR1_U) & ~(0xfff << 20)) | (0xaaa << 20),
492 GAFR1_U);
493 writel((readl(GAFR2_L) & ~0xf) | (0xa), GAFR2_L);
wdenk7a428cc2003-06-15 22:40:42 +0000494
495 /* bits 74-77 */
Marek Vasut2db1e962010-09-09 09:50:39 +0200496 writel(readl(GPDR2) | (0xf << 10), GPDR2);
497 writel((readl(GAFR2_L) & ~(0xff << 20)) | (0xaa << 20),
498 GAFR2_L);
wdenk7a428cc2003-06-15 22:40:42 +0000499 }
500
501 /* 16 bit interface */
502 else if (!(lccr0 & LCCR0_CMS) && ((lccr0 & LCCR0_SDS) || (lccr0 & LCCR0_PAS)))
503 {
504 debug("Setting GPIO for 16 bit data\n");
505 /* bits 58-77 */
Marek Vasut2db1e962010-09-09 09:50:39 +0200506 writel(readl(GPDR1) | (0x3f << 26), GPDR1);
507 writel(readl(GPDR2) | 0x00003fff, GPDR2);
wdenk7a428cc2003-06-15 22:40:42 +0000508
Marek Vasut2db1e962010-09-09 09:50:39 +0200509 writel((readl(GAFR1_U) & ~(0xfff << 20)) | (0xaaa << 20),
510 GAFR1_U);
511 writel((readl(GAFR2_L) & 0xf0000000) | 0x0aaaaaaa, GAFR2_L);
wdenk7a428cc2003-06-15 22:40:42 +0000512 }
513 else
514 {
515 printf("pxafb_setup_gpio: unable to determine bits per pixel\n");
516 }
517}
Marek Vasut23cf8e42009-11-28 13:57:43 +0100518#endif
wdenk7a428cc2003-06-15 22:40:42 +0000519
wdenk9ca7bbc2004-10-09 23:25:58 +0000520static void pxafb_enable_controller (vidinfo_t *vid)
wdenk7a428cc2003-06-15 22:40:42 +0000521{
522 debug("Enabling LCD controller\n");
523
524 /* Sequence from 11.7.10 */
Marek Vasut2db1e962010-09-09 09:50:39 +0200525 writel(vid->pxa.reg_lccr3, LCCR3);
526 writel(vid->pxa.reg_lccr2, LCCR2);
527 writel(vid->pxa.reg_lccr1, LCCR1);
528 writel(vid->pxa.reg_lccr0 & ~LCCR0_ENB, LCCR0);
529 writel(vid->pxa.fdadr0, FDADR0);
530 writel(vid->pxa.fdadr1, FDADR1);
531 writel(readl(LCCR0) | LCCR0_ENB, LCCR0);
wdenk7a428cc2003-06-15 22:40:42 +0000532
Marek Vasut23cf8e42009-11-28 13:57:43 +0100533#ifdef CONFIG_CPU_MONAHANS
Marek Vasut2db1e962010-09-09 09:50:39 +0200534 writel(readl(CKENA) | CKENA_1_LCD, CKENA);
Marek Vasut23cf8e42009-11-28 13:57:43 +0100535#else
Marek Vasut2db1e962010-09-09 09:50:39 +0200536 writel(readl(CKEN) | CKEN16_LCD, CKEN);
Marek Vasut23cf8e42009-11-28 13:57:43 +0100537#endif
wdenk7a428cc2003-06-15 22:40:42 +0000538
Marek Vasut2db1e962010-09-09 09:50:39 +0200539 debug("FDADR0 = 0x%08x\n", readl(FDADR0));
540 debug("FDADR1 = 0x%08x\n", readl(FDADR1));
541 debug("LCCR0 = 0x%08x\n", readl(LCCR0));
542 debug("LCCR1 = 0x%08x\n", readl(LCCR1));
543 debug("LCCR2 = 0x%08x\n", readl(LCCR2));
544 debug("LCCR3 = 0x%08x\n", readl(LCCR3));
wdenk7a428cc2003-06-15 22:40:42 +0000545}
546
wdenk9ca7bbc2004-10-09 23:25:58 +0000547static int pxafb_init (vidinfo_t *vid)
wdenk7a428cc2003-06-15 22:40:42 +0000548{
549 struct pxafb_info *fbi = &vid->pxa;
550
551 debug("Configuring PXA LCD\n");
552
553 fbi->reg_lccr0 = REG_LCCR0;
554 fbi->reg_lccr3 = REG_LCCR3;
555
556 debug("vid: vl_col=%d hslen=%d lm=%d rm=%d\n",
557 vid->vl_col, vid->vl_hpw,
558 vid->vl_blw, vid->vl_elw);
559 debug("vid: vl_row=%d vslen=%d um=%d bm=%d\n",
560 vid->vl_row, vid->vl_vpw,
561 vid->vl_bfw, vid->vl_efw);
562
563 fbi->reg_lccr1 =
564 LCCR1_DisWdth(vid->vl_col) +
565 LCCR1_HorSnchWdth(vid->vl_hpw) +
566 LCCR1_BegLnDel(vid->vl_blw) +
567 LCCR1_EndLnDel(vid->vl_elw);
wdenk57b2d802003-06-27 21:31:46 +0000568
wdenk7a428cc2003-06-15 22:40:42 +0000569 fbi->reg_lccr2 =
570 LCCR2_DisHght(vid->vl_row) +
571 LCCR2_VrtSnchWdth(vid->vl_vpw) +
572 LCCR2_BegFrmDel(vid->vl_bfw) +
573 LCCR2_EndFrmDel(vid->vl_efw);
574
wdenk57b2d802003-06-27 21:31:46 +0000575 fbi->reg_lccr3 = REG_LCCR3 & ~(LCCR3_HSP | LCCR3_VSP);
wdenk9ca7bbc2004-10-09 23:25:58 +0000576 fbi->reg_lccr3 |= (vid->vl_hsp ? LCCR3_HorSnchL : LCCR3_HorSnchH)
577 | (vid->vl_vsp ? LCCR3_VrtSnchL : LCCR3_VrtSnchH);
wdenk57b2d802003-06-27 21:31:46 +0000578
wdenk7a428cc2003-06-15 22:40:42 +0000579
580 /* setup dma descriptors */
581 fbi->dmadesc_fblow = (struct pxafb_dma_descriptor *)((unsigned int)fbi->palette - 3*16);
582 fbi->dmadesc_fbhigh = (struct pxafb_dma_descriptor *)((unsigned int)fbi->palette - 2*16);
583 fbi->dmadesc_palette = (struct pxafb_dma_descriptor *)((unsigned int)fbi->palette - 1*16);
584
585 #define BYTES_PER_PANEL ((fbi->reg_lccr0 & LCCR0_SDS) ? \
wdenk57b2d802003-06-27 21:31:46 +0000586 (vid->vl_col * vid->vl_row * NBITS(vid->vl_bpix) / 8 / 2) : \
587 (vid->vl_col * vid->vl_row * NBITS(vid->vl_bpix) / 8))
588
wdenk7a428cc2003-06-15 22:40:42 +0000589 /* populate descriptors */
590 fbi->dmadesc_fblow->fdadr = (u_long)fbi->dmadesc_fblow;
591 fbi->dmadesc_fblow->fsadr = fbi->screen + BYTES_PER_PANEL;
592 fbi->dmadesc_fblow->fidr = 0;
593 fbi->dmadesc_fblow->ldcmd = BYTES_PER_PANEL;
594
595 fbi->fdadr1 = (u_long)fbi->dmadesc_fblow; /* only used in dual-panel mode */
wdenk57b2d802003-06-27 21:31:46 +0000596
wdenk7a428cc2003-06-15 22:40:42 +0000597 fbi->dmadesc_fbhigh->fsadr = fbi->screen;
598 fbi->dmadesc_fbhigh->fidr = 0;
599 fbi->dmadesc_fbhigh->ldcmd = BYTES_PER_PANEL;
600
601 fbi->dmadesc_palette->fsadr = fbi->palette;
602 fbi->dmadesc_palette->fidr = 0;
603 fbi->dmadesc_palette->ldcmd = (fbi->palette_size * 2) | LDCMD_PAL;
604
605 if( NBITS(vid->vl_bpix) < 12)
606 {
607 /* assume any mode with <12 bpp is palette driven */
608 fbi->dmadesc_palette->fdadr = (u_long)fbi->dmadesc_fbhigh;
609 fbi->dmadesc_fbhigh->fdadr = (u_long)fbi->dmadesc_palette;
610 /* flips back and forth between pal and fbhigh */
wdenk57b2d802003-06-27 21:31:46 +0000611 fbi->fdadr0 = (u_long)fbi->dmadesc_palette;
wdenk7a428cc2003-06-15 22:40:42 +0000612 }
613 else
614 {
615 /* palette shouldn't be loaded in true-color mode */
616 fbi->dmadesc_fbhigh->fdadr = (u_long)fbi->dmadesc_fbhigh;
617 fbi->fdadr0 = (u_long)fbi->dmadesc_fbhigh; /* no pal just fbhigh */
618 }
619
620 debug("fbi->dmadesc_fblow = 0x%lx\n", (u_long)fbi->dmadesc_fblow);
621 debug("fbi->dmadesc_fbhigh = 0x%lx\n", (u_long)fbi->dmadesc_fbhigh);
622 debug("fbi->dmadesc_palette = 0x%lx\n", (u_long)fbi->dmadesc_palette);
623
624 debug("fbi->dmadesc_fblow->fdadr = 0x%lx\n", fbi->dmadesc_fblow->fdadr);
625 debug("fbi->dmadesc_fbhigh->fdadr = 0x%lx\n", fbi->dmadesc_fbhigh->fdadr);
626 debug("fbi->dmadesc_palette->fdadr = 0x%lx\n", fbi->dmadesc_palette->fdadr);
627
628 debug("fbi->dmadesc_fblow->fsadr = 0x%lx\n", fbi->dmadesc_fblow->fsadr);
629 debug("fbi->dmadesc_fbhigh->fsadr = 0x%lx\n", fbi->dmadesc_fbhigh->fsadr);
630 debug("fbi->dmadesc_palette->fsadr = 0x%lx\n", fbi->dmadesc_palette->fsadr);
631
632 debug("fbi->dmadesc_fblow->ldcmd = 0x%lx\n", fbi->dmadesc_fblow->ldcmd);
633 debug("fbi->dmadesc_fbhigh->ldcmd = 0x%lx\n", fbi->dmadesc_fbhigh->ldcmd);
634 debug("fbi->dmadesc_palette->ldcmd = 0x%lx\n", fbi->dmadesc_palette->ldcmd);
wdenk57b2d802003-06-27 21:31:46 +0000635
wdenk7a428cc2003-06-15 22:40:42 +0000636 return 0;
637}
638
639/************************************************************************/
640/************************************************************************/
641
642#endif /* CONFIG_LCD */