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wdenk71f95112003-06-15 22:40:42 +00001/*
wdenk8655b6f2004-10-09 23:25:58 +00002 * PXA LCD Controller
3 *
wdenk71f95112003-06-15 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
wdenk71f95112003-06-15 22:40:42 +000030#include <config.h>
31#include <common.h>
32#include <version.h>
33#include <stdarg.h>
wdenk71f95112003-06-15 22:40:42 +000034#include <linux/types.h>
Jean-Christophe PLAGNIOL-VILLARD52cb4d42009-05-16 12:14:54 +020035#include <stdio_dev.h>
wdenk8655b6f2004-10-09 23:25:58 +000036#include <lcd.h>
wdenk71f95112003-06-15 22:40:42 +000037#include <asm/arch/pxa-regs.h>
Marek Vasut3ba8bf72010-09-09 09:50:39 +020038#include <asm/io.h>
wdenk71f95112003-06-15 22:40:42 +000039
wdenk8655b6f2004-10-09 23:25:58 +000040/* #define DEBUG */
41
wdenk71f95112003-06-15 22:40:42 +000042#ifdef CONFIG_LCD
43
wdenk71f95112003-06-15 22:40:42 +000044/*----------------------------------------------------------------------*/
wdenk71f95112003-06-15 22:40:42 +000045/*
wdenk8655b6f2004-10-09 23:25:58 +000046 * Define panel bpp, LCCR0, LCCR3 and panel_info video struct for
47 * your display.
wdenk71f95112003-06-15 22:40:42 +000048 */
49
wdenk8655b6f2004-10-09 23:25:58 +000050#ifdef CONFIG_PXA_VGA
51/* LCD outputs connected to a video DAC */
52# define LCD_BPP LCD_COLOR8
wdenk71f95112003-06-15 22:40:42 +000053
54/* you have to set lccr0 and lccr3 (including pcd) */
wdenk8655b6f2004-10-09 23:25:58 +000055# define REG_LCCR0 0x003008f8
56# define REG_LCCR3 0x0300FF01
wdenk71f95112003-06-15 22:40:42 +000057
58/* 640x480x16 @ 61 Hz */
wdenk8655b6f2004-10-09 23:25:58 +000059vidinfo_t panel_info = {
Marek Vasut9f80a202010-09-23 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,
wdenk71f95112003-06-15 22:40:42 +000080};
81#endif /* CONFIG_PXA_VIDEO */
82
wdenk8655b6f2004-10-09 23:25:58 +000083/*----------------------------------------------------------------------*/
wdenk71f95112003-06-15 22:40:42 +000084#ifdef CONFIG_SHARP_LM8V31
85
wdenk8655b6f2004-10-09 23:25:58 +000086# define LCD_BPP LCD_COLOR8
87# define LCD_INVERT_COLORS /* Needed for colors to be correct, but why? */
wdenk71f95112003-06-15 22:40:42 +000088
89/* you have to set lccr0 and lccr3 (including pcd) */
wdenk8655b6f2004-10-09 23:25:58 +000090# define REG_LCCR0 0x0030087C
91# define REG_LCCR3 0x0340FF08
wdenk71f95112003-06-15 22:40:42 +000092
wdenk8655b6f2004-10-09 23:25:58 +000093vidinfo_t panel_info = {
Marek Vasut9f80a202010-09-23 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,
wdenk71f95112003-06-15 22:40:42 +0000114};
115#endif /* CONFIG_SHARP_LM8V31 */
Marek Vasut9b92cf02010-03-07 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 Vasut9f80a202010-09-23 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 Vasut9b92cf02010-03-07 23:35:48 +0100147};
148#endif /* CONFIG_VOIPAC_LCD */
wdenk71f95112003-06-15 22:40:42 +0000149
150/*----------------------------------------------------------------------*/
wdenk8655b6f2004-10-09 23:25:58 +0000151#ifdef CONFIG_HITACHI_SX14
152/* Hitachi SX14Q004-ZZA color STN LCD */
153#define LCD_BPP LCD_COLOR8
wdenk71f95112003-06-15 22:40:42 +0000154
wdenk8655b6f2004-10-09 23:25:58 +0000155/* you have to set lccr0 and lccr3 (including pcd) */
156#define REG_LCCR0 0x00301079
157#define REG_LCCR3 0x0340FF20
wdenk71f95112003-06-15 22:40:42 +0000158
wdenk8655b6f2004-10-09 23:25:58 +0000159vidinfo_t panel_info = {
Marek Vasut9f80a202010-09-23 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,
wdenk71f95112003-06-15 22:40:42 +0000180};
wdenk8655b6f2004-10-09 23:25:58 +0000181#endif /* CONFIG_HITACHI_SX14 */
wdenk71f95112003-06-15 22:40:42 +0000182
183/*----------------------------------------------------------------------*/
Marek Vasut546cd602010-07-03 09:38:03 +0200184#ifdef CONFIG_LMS283GF05
185
186# define LCD_BPP LCD_COLOR8
Wolfgang Denk07517e72010-09-19 17:47:52 +0200187/*# define LCD_INVERT_COLORS*/
Marek Vasut546cd602010-07-03 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 Vasut9f80a202010-09-23 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 Vasut546cd602010-07-03 09:38:03 +0200214};
215#endif /* CONFIG_LMS283GF05 */
216
217/*----------------------------------------------------------------------*/
wdenk71f95112003-06-15 22:40:42 +0000218
Marek Vasutf7d58d92010-07-18 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
Mike Dunn98eda332013-04-12 11:59:13 -0700251#ifdef CONFIG_ACX544AKN
252
253# define LCD_BPP LCD_COLOR16
254
255/* you have to set lccr0 and lccr3 (including pcd) */
256# define REG_LCCR0 0x003008f9
257# define REG_LCCR3 0x04700007 /* 16bpp */
258
259vidinfo_t panel_info = {
260 .vl_col = 320,
261 .vl_row = 320,
262 .vl_width = 320,
263 .vl_height = 320,
264 .vl_clkp = CONFIG_SYS_LOW,
265 .vl_oep = CONFIG_SYS_LOW,
266 .vl_hsp = CONFIG_SYS_LOW,
267 .vl_vsp = CONFIG_SYS_LOW,
268 .vl_dp = CONFIG_SYS_LOW,
269 .vl_bpix = LCD_BPP,
270 .vl_lbw = 0,
271 .vl_splt = 0,
272 .vl_clor = 1,
273 .vl_tft = 1,
274 .vl_hpw = 0x05,
275 .vl_blw = 0x13,
276 .vl_elw = 0x08,
277 .vl_vpw = 0x02,
278 .vl_bfw = 0x07,
279 .vl_efw = 0x05,
280};
281#endif /* CONFIG_ACX544AKN */
282
Marek Vasutf7d58d92010-07-18 04:46:55 +0200283/*----------------------------------------------------------------------*/
284
Marek Vasut42222be2010-07-19 11:21:38 +0200285#ifdef CONFIG_LQ038J7DH53
286
287# define LCD_BPP LCD_COLOR8
288
289/* you have to set lccr0 and lccr3 (including pcd) */
290# define REG_LCCR0 0x003008f9
291# define REG_LCCR3 0x03700004
292
293vidinfo_t panel_info = {
294 .vl_col = 320,
295 .vl_row = 480,
296 .vl_width = 320,
297 .vl_height = 480,
298 .vl_clkp = CONFIG_SYS_HIGH,
299 .vl_oep = CONFIG_SYS_LOW,
300 .vl_hsp = CONFIG_SYS_LOW,
301 .vl_vsp = CONFIG_SYS_LOW,
302 .vl_dp = CONFIG_SYS_HIGH,
303 .vl_bpix = LCD_BPP,
304 .vl_lbw = 0,
305 .vl_splt = 1,
306 .vl_clor = 1,
307 .vl_tft = 1,
308 .vl_hpw = 0x04,
309 .vl_blw = 0x20,
310 .vl_elw = 0x01,
311 .vl_vpw = 0x01,
312 .vl_bfw = 0x04,
313 .vl_efw = 0x01,
314};
315#endif /* CONFIG_ACX517AKN */
316
317/*----------------------------------------------------------------------*/
318
Marek Vasut8b71d2b2009-12-31 03:44:22 +0100319#ifdef CONFIG_LITTLETON_LCD
320# define LCD_BPP LCD_COLOR8
321
322/* you have to set lccr0 and lccr3 (including pcd) */
323# define REG_LCCR0 0x003008f8
324# define REG_LCCR3 0x0300FF04
325
326vidinfo_t panel_info = {
327 .vl_col = 480,
328 .vl_row = 640,
329 .vl_width = 480,
330 .vl_height = 640,
331 .vl_clkp = CONFIG_SYS_HIGH,
332 .vl_oep = CONFIG_SYS_HIGH,
333 .vl_hsp = CONFIG_SYS_HIGH,
334 .vl_vsp = CONFIG_SYS_HIGH,
335 .vl_dp = CONFIG_SYS_HIGH,
336 .vl_bpix = LCD_BPP,
337 .vl_lbw = 0,
338 .vl_splt = 0,
339 .vl_clor = 0,
340 .vl_tft = 1,
341 .vl_hpw = 9,
342 .vl_blw = 8,
343 .vl_elw = 24,
344 .vl_vpw = 2,
345 .vl_bfw = 2,
346 .vl_efw = 4,
347};
348#endif /* CONFIG_LITTLETON_LCD */
349
350/*----------------------------------------------------------------------*/
351
wdenk8655b6f2004-10-09 23:25:58 +0000352static int pxafb_init_mem (void *lcdbase, vidinfo_t *vid);
353static void pxafb_setup_gpio (vidinfo_t *vid);
354static void pxafb_enable_controller (vidinfo_t *vid);
355static int pxafb_init (vidinfo_t *vid);
wdenk71f95112003-06-15 22:40:42 +0000356
wdenk71f95112003-06-15 22:40:42 +0000357/************************************************************************/
wdenk8655b6f2004-10-09 23:25:58 +0000358/* --------------- PXA chipset specific functions ------------------- */
wdenk71f95112003-06-15 22:40:42 +0000359/************************************************************************/
360
wdenk8655b6f2004-10-09 23:25:58 +0000361void lcd_ctrl_init (void *lcdbase)
wdenk71f95112003-06-15 22:40:42 +0000362{
wdenk8bde7f72003-06-27 21:31:46 +0000363 pxafb_init_mem(lcdbase, &panel_info);
wdenk71f95112003-06-15 22:40:42 +0000364 pxafb_init(&panel_info);
365 pxafb_setup_gpio(&panel_info);
366 pxafb_enable_controller(&panel_info);
367}
368
369/*----------------------------------------------------------------------*/
wdenk71f95112003-06-15 22:40:42 +0000370#if LCD_BPP == LCD_COLOR8
wdenk8655b6f2004-10-09 23:25:58 +0000371void
wdenk71f95112003-06-15 22:40:42 +0000372lcd_setcolreg (ushort regno, ushort red, ushort green, ushort blue)
373{
374 struct pxafb_info *fbi = &panel_info.pxa;
375 unsigned short *palette = (unsigned short *)fbi->palette;
376 u_int val;
wdenk8bde7f72003-06-27 21:31:46 +0000377
wdenk71f95112003-06-15 22:40:42 +0000378 if (regno < fbi->palette_size) {
379 val = ((red << 8) & 0xf800);
380 val |= ((green << 4) & 0x07e0);
381 val |= (blue & 0x001f);
382
383#ifdef LCD_INVERT_COLORS
384 palette[regno] = ~val;
385#else
wdenk8655b6f2004-10-09 23:25:58 +0000386 palette[regno] = val;
wdenk71f95112003-06-15 22:40:42 +0000387#endif
388 }
389
390 debug ("setcolreg: reg %2d @ %p: R=%02X G=%02X B=%02X => %04X\n",
391 regno, &palette[regno],
392 red, green, blue,
393 palette[regno]);
394}
wdenk8655b6f2004-10-09 23:25:58 +0000395#endif /* LCD_COLOR8 */
wdenk71f95112003-06-15 22:40:42 +0000396
397/*----------------------------------------------------------------------*/
wdenk71f95112003-06-15 22:40:42 +0000398#if LCD_BPP == LCD_MONOCHROME
wdenk71f95112003-06-15 22:40:42 +0000399void lcd_initcolregs (void)
400{
wdenk8655b6f2004-10-09 23:25:58 +0000401 struct pxafb_info *fbi = &panel_info.pxa;
402 cmap = (ushort *)fbi->palette;
wdenk71f95112003-06-15 22:40:42 +0000403 ushort regno;
404
405 for (regno = 0; regno < 16; regno++) {
wdenk8655b6f2004-10-09 23:25:58 +0000406 cmap[regno * 2] = 0;
407 cmap[(regno * 2) + 1] = regno & 0x0f;
wdenk71f95112003-06-15 22:40:42 +0000408 }
409}
wdenk8655b6f2004-10-09 23:25:58 +0000410#endif /* LCD_MONOCHROME */
wdenk71f95112003-06-15 22:40:42 +0000411
412/*----------------------------------------------------------------------*/
wdenk8655b6f2004-10-09 23:25:58 +0000413void lcd_enable (void)
wdenk71f95112003-06-15 22:40:42 +0000414{
415}
416
wdenk8655b6f2004-10-09 23:25:58 +0000417/************************************************************************/
418/* ** PXA255 specific routines */
419/************************************************************************/
420
421/*
422 * Calculate fb size for VIDEOLFB_ATAG. Size returned contains fb,
423 * descriptors and palette areas.
424 */
425ulong calc_fbsize (void)
wdenk71f95112003-06-15 22:40:42 +0000426{
wdenk8655b6f2004-10-09 23:25:58 +0000427 ulong size;
428 int line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
wdenk71f95112003-06-15 22:40:42 +0000429
wdenk8655b6f2004-10-09 23:25:58 +0000430 size = line_length * panel_info.vl_row;
431 size += PAGE_SIZE;
wdenk71f95112003-06-15 22:40:42 +0000432
wdenk8655b6f2004-10-09 23:25:58 +0000433 return size;
wdenk71f95112003-06-15 22:40:42 +0000434}
435
wdenk8655b6f2004-10-09 23:25:58 +0000436static int pxafb_init_mem (void *lcdbase, vidinfo_t *vid)
wdenk71f95112003-06-15 22:40:42 +0000437{
438 u_long palette_mem_size;
439 struct pxafb_info *fbi = &vid->pxa;
440 int fb_size = vid->vl_row * (vid->vl_col * NBITS (vid->vl_bpix)) / 8;
441
442 fbi->screen = (u_long)lcdbase;
443
444 fbi->palette_size = NBITS(vid->vl_bpix) == 8 ? 256 : 16;
445 palette_mem_size = fbi->palette_size * sizeof(u16);
wdenk8655b6f2004-10-09 23:25:58 +0000446
wdenk71f95112003-06-15 22:40:42 +0000447 debug("palette_mem_size = 0x%08lx\n", (u_long) palette_mem_size);
448 /* locate palette and descs at end of page following fb */
wdenk8655b6f2004-10-09 23:25:58 +0000449 fbi->palette = (u_long)lcdbase + fb_size + PAGE_SIZE - palette_mem_size;
wdenk71f95112003-06-15 22:40:42 +0000450
451 return 0;
452}
Marek Vasut8c35d0c2009-11-28 13:57:43 +0100453#ifdef CONFIG_CPU_MONAHANS
454static inline void pxafb_setup_gpio (vidinfo_t *vid) {}
455#else
wdenk8655b6f2004-10-09 23:25:58 +0000456static void pxafb_setup_gpio (vidinfo_t *vid)
wdenk71f95112003-06-15 22:40:42 +0000457{
458 u_long lccr0;
459
460 /*
461 * setup is based on type of panel supported
462 */
463
464 lccr0 = vid->pxa.reg_lccr0;
465
466 /* 4 bit interface */
467 if ((lccr0 & LCCR0_CMS) && (lccr0 & LCCR0_SDS) && !(lccr0 & LCCR0_DPD))
468 {
469 debug("Setting GPIO for 4 bit data\n");
470 /* bits 58-61 */
Marek Vasut3ba8bf72010-09-09 09:50:39 +0200471 writel(readl(GPDR1) | (0xf << 26), GPDR1);
472 writel((readl(GAFR1_U) & ~(0xff << 20)) | (0xaa << 20),
473 GAFR1_U);
wdenk71f95112003-06-15 22:40:42 +0000474
475 /* bits 74-77 */
Marek Vasut3ba8bf72010-09-09 09:50:39 +0200476 writel(readl(GPDR2) | (0xf << 10), GPDR2);
477 writel((readl(GAFR2_L) & ~(0xff << 20)) | (0xaa << 20),
478 GAFR2_L);
wdenk71f95112003-06-15 22:40:42 +0000479 }
480
481 /* 8 bit interface */
482 else if (((lccr0 & LCCR0_CMS) && ((lccr0 & LCCR0_SDS) || (lccr0 & LCCR0_DPD))) ||
wdenk8655b6f2004-10-09 23:25:58 +0000483 (!(lccr0 & LCCR0_CMS) && !(lccr0 & LCCR0_PAS) && !(lccr0 & LCCR0_SDS)))
wdenk71f95112003-06-15 22:40:42 +0000484 {
485 debug("Setting GPIO for 8 bit data\n");
486 /* bits 58-65 */
Marek Vasut3ba8bf72010-09-09 09:50:39 +0200487 writel(readl(GPDR1) | (0x3f << 26), GPDR1);
488 writel(readl(GPDR2) | (0x3), GPDR2);
wdenk71f95112003-06-15 22:40:42 +0000489
Marek Vasut3ba8bf72010-09-09 09:50:39 +0200490 writel((readl(GAFR1_U) & ~(0xfff << 20)) | (0xaaa << 20),
491 GAFR1_U);
492 writel((readl(GAFR2_L) & ~0xf) | (0xa), GAFR2_L);
wdenk71f95112003-06-15 22:40:42 +0000493
494 /* bits 74-77 */
Marek Vasut3ba8bf72010-09-09 09:50:39 +0200495 writel(readl(GPDR2) | (0xf << 10), GPDR2);
496 writel((readl(GAFR2_L) & ~(0xff << 20)) | (0xaa << 20),
497 GAFR2_L);
wdenk71f95112003-06-15 22:40:42 +0000498 }
499
500 /* 16 bit interface */
501 else if (!(lccr0 & LCCR0_CMS) && ((lccr0 & LCCR0_SDS) || (lccr0 & LCCR0_PAS)))
502 {
503 debug("Setting GPIO for 16 bit data\n");
504 /* bits 58-77 */
Marek Vasut3ba8bf72010-09-09 09:50:39 +0200505 writel(readl(GPDR1) | (0x3f << 26), GPDR1);
506 writel(readl(GPDR2) | 0x00003fff, GPDR2);
wdenk71f95112003-06-15 22:40:42 +0000507
Marek Vasut3ba8bf72010-09-09 09:50:39 +0200508 writel((readl(GAFR1_U) & ~(0xfff << 20)) | (0xaaa << 20),
509 GAFR1_U);
510 writel((readl(GAFR2_L) & 0xf0000000) | 0x0aaaaaaa, GAFR2_L);
wdenk71f95112003-06-15 22:40:42 +0000511 }
512 else
513 {
514 printf("pxafb_setup_gpio: unable to determine bits per pixel\n");
515 }
516}
Marek Vasut8c35d0c2009-11-28 13:57:43 +0100517#endif
wdenk71f95112003-06-15 22:40:42 +0000518
wdenk8655b6f2004-10-09 23:25:58 +0000519static void pxafb_enable_controller (vidinfo_t *vid)
wdenk71f95112003-06-15 22:40:42 +0000520{
521 debug("Enabling LCD controller\n");
522
523 /* Sequence from 11.7.10 */
Marek Vasut3ba8bf72010-09-09 09:50:39 +0200524 writel(vid->pxa.reg_lccr3, LCCR3);
525 writel(vid->pxa.reg_lccr2, LCCR2);
526 writel(vid->pxa.reg_lccr1, LCCR1);
527 writel(vid->pxa.reg_lccr0 & ~LCCR0_ENB, LCCR0);
528 writel(vid->pxa.fdadr0, FDADR0);
529 writel(vid->pxa.fdadr1, FDADR1);
530 writel(readl(LCCR0) | LCCR0_ENB, LCCR0);
wdenk71f95112003-06-15 22:40:42 +0000531
Marek Vasut8c35d0c2009-11-28 13:57:43 +0100532#ifdef CONFIG_CPU_MONAHANS
Marek Vasut3ba8bf72010-09-09 09:50:39 +0200533 writel(readl(CKENA) | CKENA_1_LCD, CKENA);
Marek Vasut8c35d0c2009-11-28 13:57:43 +0100534#else
Marek Vasut3ba8bf72010-09-09 09:50:39 +0200535 writel(readl(CKEN) | CKEN16_LCD, CKEN);
Marek Vasut8c35d0c2009-11-28 13:57:43 +0100536#endif
wdenk71f95112003-06-15 22:40:42 +0000537
Marek Vasut3ba8bf72010-09-09 09:50:39 +0200538 debug("FDADR0 = 0x%08x\n", readl(FDADR0));
539 debug("FDADR1 = 0x%08x\n", readl(FDADR1));
540 debug("LCCR0 = 0x%08x\n", readl(LCCR0));
541 debug("LCCR1 = 0x%08x\n", readl(LCCR1));
542 debug("LCCR2 = 0x%08x\n", readl(LCCR2));
543 debug("LCCR3 = 0x%08x\n", readl(LCCR3));
wdenk71f95112003-06-15 22:40:42 +0000544}
545
wdenk8655b6f2004-10-09 23:25:58 +0000546static int pxafb_init (vidinfo_t *vid)
wdenk71f95112003-06-15 22:40:42 +0000547{
548 struct pxafb_info *fbi = &vid->pxa;
549
550 debug("Configuring PXA LCD\n");
551
552 fbi->reg_lccr0 = REG_LCCR0;
553 fbi->reg_lccr3 = REG_LCCR3;
554
555 debug("vid: vl_col=%d hslen=%d lm=%d rm=%d\n",
556 vid->vl_col, vid->vl_hpw,
557 vid->vl_blw, vid->vl_elw);
558 debug("vid: vl_row=%d vslen=%d um=%d bm=%d\n",
559 vid->vl_row, vid->vl_vpw,
560 vid->vl_bfw, vid->vl_efw);
561
562 fbi->reg_lccr1 =
563 LCCR1_DisWdth(vid->vl_col) +
564 LCCR1_HorSnchWdth(vid->vl_hpw) +
565 LCCR1_BegLnDel(vid->vl_blw) +
566 LCCR1_EndLnDel(vid->vl_elw);
wdenk8bde7f72003-06-27 21:31:46 +0000567
wdenk71f95112003-06-15 22:40:42 +0000568 fbi->reg_lccr2 =
569 LCCR2_DisHght(vid->vl_row) +
570 LCCR2_VrtSnchWdth(vid->vl_vpw) +
571 LCCR2_BegFrmDel(vid->vl_bfw) +
572 LCCR2_EndFrmDel(vid->vl_efw);
573
wdenk8bde7f72003-06-27 21:31:46 +0000574 fbi->reg_lccr3 = REG_LCCR3 & ~(LCCR3_HSP | LCCR3_VSP);
wdenk8655b6f2004-10-09 23:25:58 +0000575 fbi->reg_lccr3 |= (vid->vl_hsp ? LCCR3_HorSnchL : LCCR3_HorSnchH)
576 | (vid->vl_vsp ? LCCR3_VrtSnchL : LCCR3_VrtSnchH);
wdenk8bde7f72003-06-27 21:31:46 +0000577
wdenk71f95112003-06-15 22:40:42 +0000578
579 /* setup dma descriptors */
580 fbi->dmadesc_fblow = (struct pxafb_dma_descriptor *)((unsigned int)fbi->palette - 3*16);
581 fbi->dmadesc_fbhigh = (struct pxafb_dma_descriptor *)((unsigned int)fbi->palette - 2*16);
582 fbi->dmadesc_palette = (struct pxafb_dma_descriptor *)((unsigned int)fbi->palette - 1*16);
583
584 #define BYTES_PER_PANEL ((fbi->reg_lccr0 & LCCR0_SDS) ? \
wdenk8bde7f72003-06-27 21:31:46 +0000585 (vid->vl_col * vid->vl_row * NBITS(vid->vl_bpix) / 8 / 2) : \
586 (vid->vl_col * vid->vl_row * NBITS(vid->vl_bpix) / 8))
587
wdenk71f95112003-06-15 22:40:42 +0000588 /* populate descriptors */
589 fbi->dmadesc_fblow->fdadr = (u_long)fbi->dmadesc_fblow;
590 fbi->dmadesc_fblow->fsadr = fbi->screen + BYTES_PER_PANEL;
591 fbi->dmadesc_fblow->fidr = 0;
592 fbi->dmadesc_fblow->ldcmd = BYTES_PER_PANEL;
593
594 fbi->fdadr1 = (u_long)fbi->dmadesc_fblow; /* only used in dual-panel mode */
wdenk8bde7f72003-06-27 21:31:46 +0000595
wdenk71f95112003-06-15 22:40:42 +0000596 fbi->dmadesc_fbhigh->fsadr = fbi->screen;
597 fbi->dmadesc_fbhigh->fidr = 0;
598 fbi->dmadesc_fbhigh->ldcmd = BYTES_PER_PANEL;
599
600 fbi->dmadesc_palette->fsadr = fbi->palette;
601 fbi->dmadesc_palette->fidr = 0;
602 fbi->dmadesc_palette->ldcmd = (fbi->palette_size * 2) | LDCMD_PAL;
603
604 if( NBITS(vid->vl_bpix) < 12)
605 {
606 /* assume any mode with <12 bpp is palette driven */
607 fbi->dmadesc_palette->fdadr = (u_long)fbi->dmadesc_fbhigh;
608 fbi->dmadesc_fbhigh->fdadr = (u_long)fbi->dmadesc_palette;
609 /* flips back and forth between pal and fbhigh */
wdenk8bde7f72003-06-27 21:31:46 +0000610 fbi->fdadr0 = (u_long)fbi->dmadesc_palette;
wdenk71f95112003-06-15 22:40:42 +0000611 }
612 else
613 {
614 /* palette shouldn't be loaded in true-color mode */
615 fbi->dmadesc_fbhigh->fdadr = (u_long)fbi->dmadesc_fbhigh;
616 fbi->fdadr0 = (u_long)fbi->dmadesc_fbhigh; /* no pal just fbhigh */
617 }
618
619 debug("fbi->dmadesc_fblow = 0x%lx\n", (u_long)fbi->dmadesc_fblow);
620 debug("fbi->dmadesc_fbhigh = 0x%lx\n", (u_long)fbi->dmadesc_fbhigh);
621 debug("fbi->dmadesc_palette = 0x%lx\n", (u_long)fbi->dmadesc_palette);
622
623 debug("fbi->dmadesc_fblow->fdadr = 0x%lx\n", fbi->dmadesc_fblow->fdadr);
624 debug("fbi->dmadesc_fbhigh->fdadr = 0x%lx\n", fbi->dmadesc_fbhigh->fdadr);
625 debug("fbi->dmadesc_palette->fdadr = 0x%lx\n", fbi->dmadesc_palette->fdadr);
626
627 debug("fbi->dmadesc_fblow->fsadr = 0x%lx\n", fbi->dmadesc_fblow->fsadr);
628 debug("fbi->dmadesc_fbhigh->fsadr = 0x%lx\n", fbi->dmadesc_fbhigh->fsadr);
629 debug("fbi->dmadesc_palette->fsadr = 0x%lx\n", fbi->dmadesc_palette->fsadr);
630
631 debug("fbi->dmadesc_fblow->ldcmd = 0x%lx\n", fbi->dmadesc_fblow->ldcmd);
632 debug("fbi->dmadesc_fbhigh->ldcmd = 0x%lx\n", fbi->dmadesc_fbhigh->ldcmd);
633 debug("fbi->dmadesc_palette->ldcmd = 0x%lx\n", fbi->dmadesc_palette->ldcmd);
wdenk8bde7f72003-06-27 21:31:46 +0000634
wdenk71f95112003-06-15 22:40:42 +0000635 return 0;
636}
637
638/************************************************************************/
639/************************************************************************/
640
641#endif /* CONFIG_LCD */