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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 +0000335int lcd_line_length;
336int lcd_color_fg;
337int lcd_color_bg;
wdenk7a428cc2003-06-15 22:40:42 +0000338
wdenk9ca7bbc2004-10-09 23:25:58 +0000339void *lcd_base; /* Start of framebuffer memory */
340void *lcd_console_address; /* Start of console buffer */
wdenk7a428cc2003-06-15 22:40:42 +0000341
wdenk9ca7bbc2004-10-09 23:25:58 +0000342short console_col;
343short console_row;
wdenk7a428cc2003-06-15 22:40:42 +0000344
wdenk9ca7bbc2004-10-09 23:25:58 +0000345static int pxafb_init_mem (void *lcdbase, vidinfo_t *vid);
346static void pxafb_setup_gpio (vidinfo_t *vid);
347static void pxafb_enable_controller (vidinfo_t *vid);
348static int pxafb_init (vidinfo_t *vid);
wdenk7a428cc2003-06-15 22:40:42 +0000349/************************************************************************/
350
wdenk7a428cc2003-06-15 22:40:42 +0000351/************************************************************************/
wdenk9ca7bbc2004-10-09 23:25:58 +0000352/* --------------- PXA chipset specific functions ------------------- */
wdenk7a428cc2003-06-15 22:40:42 +0000353/************************************************************************/
354
wdenk9ca7bbc2004-10-09 23:25:58 +0000355void lcd_ctrl_init (void *lcdbase)
wdenk7a428cc2003-06-15 22:40:42 +0000356{
wdenk57b2d802003-06-27 21:31:46 +0000357 pxafb_init_mem(lcdbase, &panel_info);
wdenk7a428cc2003-06-15 22:40:42 +0000358 pxafb_init(&panel_info);
359 pxafb_setup_gpio(&panel_info);
360 pxafb_enable_controller(&panel_info);
361}
362
363/*----------------------------------------------------------------------*/
wdenk9ca7bbc2004-10-09 23:25:58 +0000364#ifdef NOT_USED_SO_FAR
365void
wdenk7a428cc2003-06-15 22:40:42 +0000366lcd_getcolreg (ushort regno, ushort *red, ushort *green, ushort *blue)
367{
368}
wdenk9ca7bbc2004-10-09 23:25:58 +0000369#endif /* NOT_USED_SO_FAR */
wdenk7a428cc2003-06-15 22:40:42 +0000370
371/*----------------------------------------------------------------------*/
wdenk7a428cc2003-06-15 22:40:42 +0000372#if LCD_BPP == LCD_COLOR8
wdenk9ca7bbc2004-10-09 23:25:58 +0000373void
wdenk7a428cc2003-06-15 22:40:42 +0000374lcd_setcolreg (ushort regno, ushort red, ushort green, ushort blue)
375{
376 struct pxafb_info *fbi = &panel_info.pxa;
377 unsigned short *palette = (unsigned short *)fbi->palette;
378 u_int val;
wdenk57b2d802003-06-27 21:31:46 +0000379
wdenk7a428cc2003-06-15 22:40:42 +0000380 if (regno < fbi->palette_size) {
381 val = ((red << 8) & 0xf800);
382 val |= ((green << 4) & 0x07e0);
383 val |= (blue & 0x001f);
384
385#ifdef LCD_INVERT_COLORS
386 palette[regno] = ~val;
387#else
wdenk9ca7bbc2004-10-09 23:25:58 +0000388 palette[regno] = val;
wdenk7a428cc2003-06-15 22:40:42 +0000389#endif
390 }
391
392 debug ("setcolreg: reg %2d @ %p: R=%02X G=%02X B=%02X => %04X\n",
393 regno, &palette[regno],
394 red, green, blue,
395 palette[regno]);
396}
wdenk9ca7bbc2004-10-09 23:25:58 +0000397#endif /* LCD_COLOR8 */
wdenk7a428cc2003-06-15 22:40:42 +0000398
399/*----------------------------------------------------------------------*/
wdenk7a428cc2003-06-15 22:40:42 +0000400#if LCD_BPP == LCD_MONOCHROME
wdenk7a428cc2003-06-15 22:40:42 +0000401void lcd_initcolregs (void)
402{
wdenk9ca7bbc2004-10-09 23:25:58 +0000403 struct pxafb_info *fbi = &panel_info.pxa;
404 cmap = (ushort *)fbi->palette;
wdenk7a428cc2003-06-15 22:40:42 +0000405 ushort regno;
406
407 for (regno = 0; regno < 16; regno++) {
wdenk9ca7bbc2004-10-09 23:25:58 +0000408 cmap[regno * 2] = 0;
409 cmap[(regno * 2) + 1] = regno & 0x0f;
wdenk7a428cc2003-06-15 22:40:42 +0000410 }
411}
wdenk9ca7bbc2004-10-09 23:25:58 +0000412#endif /* LCD_MONOCHROME */
wdenk7a428cc2003-06-15 22:40:42 +0000413
414/*----------------------------------------------------------------------*/
wdenk9ca7bbc2004-10-09 23:25:58 +0000415void lcd_enable (void)
wdenk7a428cc2003-06-15 22:40:42 +0000416{
417}
418
419/*----------------------------------------------------------------------*/
wdenk7a428cc2003-06-15 22:40:42 +0000420#ifdef NOT_USED_SO_FAR
421static void lcd_disable (void)
422{
423}
wdenk9ca7bbc2004-10-09 23:25:58 +0000424#endif /* NOT_USED_SO_FAR */
wdenk7a428cc2003-06-15 22:40:42 +0000425
wdenk9ca7bbc2004-10-09 23:25:58 +0000426/*----------------------------------------------------------------------*/
wdenk7a428cc2003-06-15 22:40:42 +0000427
428/************************************************************************/
wdenk9ca7bbc2004-10-09 23:25:58 +0000429/* ** PXA255 specific routines */
wdenk7a428cc2003-06-15 22:40:42 +0000430/************************************************************************/
431
wdenk9ca7bbc2004-10-09 23:25:58 +0000432/*
433 * Calculate fb size for VIDEOLFB_ATAG. Size returned contains fb,
434 * descriptors and palette areas.
435 */
436ulong calc_fbsize (void)
wdenk7a428cc2003-06-15 22:40:42 +0000437{
wdenk9ca7bbc2004-10-09 23:25:58 +0000438 ulong size;
439 int line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
wdenk7a428cc2003-06-15 22:40:42 +0000440
wdenk9ca7bbc2004-10-09 23:25:58 +0000441 size = line_length * panel_info.vl_row;
442 size += PAGE_SIZE;
wdenk7a428cc2003-06-15 22:40:42 +0000443
wdenk9ca7bbc2004-10-09 23:25:58 +0000444 return size;
wdenk7a428cc2003-06-15 22:40:42 +0000445}
446
wdenk9ca7bbc2004-10-09 23:25:58 +0000447static int pxafb_init_mem (void *lcdbase, vidinfo_t *vid)
wdenk7a428cc2003-06-15 22:40:42 +0000448{
449 u_long palette_mem_size;
450 struct pxafb_info *fbi = &vid->pxa;
451 int fb_size = vid->vl_row * (vid->vl_col * NBITS (vid->vl_bpix)) / 8;
452
453 fbi->screen = (u_long)lcdbase;
454
455 fbi->palette_size = NBITS(vid->vl_bpix) == 8 ? 256 : 16;
456 palette_mem_size = fbi->palette_size * sizeof(u16);
wdenk9ca7bbc2004-10-09 23:25:58 +0000457
wdenk7a428cc2003-06-15 22:40:42 +0000458 debug("palette_mem_size = 0x%08lx\n", (u_long) palette_mem_size);
459 /* locate palette and descs at end of page following fb */
wdenk9ca7bbc2004-10-09 23:25:58 +0000460 fbi->palette = (u_long)lcdbase + fb_size + PAGE_SIZE - palette_mem_size;
wdenk7a428cc2003-06-15 22:40:42 +0000461
462 return 0;
463}
Marek Vasut23cf8e42009-11-28 13:57:43 +0100464#ifdef CONFIG_CPU_MONAHANS
465static inline void pxafb_setup_gpio (vidinfo_t *vid) {}
466#else
wdenk9ca7bbc2004-10-09 23:25:58 +0000467static void pxafb_setup_gpio (vidinfo_t *vid)
wdenk7a428cc2003-06-15 22:40:42 +0000468{
469 u_long lccr0;
470
471 /*
472 * setup is based on type of panel supported
473 */
474
475 lccr0 = vid->pxa.reg_lccr0;
476
477 /* 4 bit interface */
478 if ((lccr0 & LCCR0_CMS) && (lccr0 & LCCR0_SDS) && !(lccr0 & LCCR0_DPD))
479 {
480 debug("Setting GPIO for 4 bit data\n");
481 /* bits 58-61 */
Marek Vasut2db1e962010-09-09 09:50:39 +0200482 writel(readl(GPDR1) | (0xf << 26), GPDR1);
483 writel((readl(GAFR1_U) & ~(0xff << 20)) | (0xaa << 20),
484 GAFR1_U);
wdenk7a428cc2003-06-15 22:40:42 +0000485
486 /* bits 74-77 */
Marek Vasut2db1e962010-09-09 09:50:39 +0200487 writel(readl(GPDR2) | (0xf << 10), GPDR2);
488 writel((readl(GAFR2_L) & ~(0xff << 20)) | (0xaa << 20),
489 GAFR2_L);
wdenk7a428cc2003-06-15 22:40:42 +0000490 }
491
492 /* 8 bit interface */
493 else if (((lccr0 & LCCR0_CMS) && ((lccr0 & LCCR0_SDS) || (lccr0 & LCCR0_DPD))) ||
wdenk9ca7bbc2004-10-09 23:25:58 +0000494 (!(lccr0 & LCCR0_CMS) && !(lccr0 & LCCR0_PAS) && !(lccr0 & LCCR0_SDS)))
wdenk7a428cc2003-06-15 22:40:42 +0000495 {
496 debug("Setting GPIO for 8 bit data\n");
497 /* bits 58-65 */
Marek Vasut2db1e962010-09-09 09:50:39 +0200498 writel(readl(GPDR1) | (0x3f << 26), GPDR1);
499 writel(readl(GPDR2) | (0x3), GPDR2);
wdenk7a428cc2003-06-15 22:40:42 +0000500
Marek Vasut2db1e962010-09-09 09:50:39 +0200501 writel((readl(GAFR1_U) & ~(0xfff << 20)) | (0xaaa << 20),
502 GAFR1_U);
503 writel((readl(GAFR2_L) & ~0xf) | (0xa), GAFR2_L);
wdenk7a428cc2003-06-15 22:40:42 +0000504
505 /* bits 74-77 */
Marek Vasut2db1e962010-09-09 09:50:39 +0200506 writel(readl(GPDR2) | (0xf << 10), GPDR2);
507 writel((readl(GAFR2_L) & ~(0xff << 20)) | (0xaa << 20),
508 GAFR2_L);
wdenk7a428cc2003-06-15 22:40:42 +0000509 }
510
511 /* 16 bit interface */
512 else if (!(lccr0 & LCCR0_CMS) && ((lccr0 & LCCR0_SDS) || (lccr0 & LCCR0_PAS)))
513 {
514 debug("Setting GPIO for 16 bit data\n");
515 /* bits 58-77 */
Marek Vasut2db1e962010-09-09 09:50:39 +0200516 writel(readl(GPDR1) | (0x3f << 26), GPDR1);
517 writel(readl(GPDR2) | 0x00003fff, GPDR2);
wdenk7a428cc2003-06-15 22:40:42 +0000518
Marek Vasut2db1e962010-09-09 09:50:39 +0200519 writel((readl(GAFR1_U) & ~(0xfff << 20)) | (0xaaa << 20),
520 GAFR1_U);
521 writel((readl(GAFR2_L) & 0xf0000000) | 0x0aaaaaaa, GAFR2_L);
wdenk7a428cc2003-06-15 22:40:42 +0000522 }
523 else
524 {
525 printf("pxafb_setup_gpio: unable to determine bits per pixel\n");
526 }
527}
Marek Vasut23cf8e42009-11-28 13:57:43 +0100528#endif
wdenk7a428cc2003-06-15 22:40:42 +0000529
wdenk9ca7bbc2004-10-09 23:25:58 +0000530static void pxafb_enable_controller (vidinfo_t *vid)
wdenk7a428cc2003-06-15 22:40:42 +0000531{
532 debug("Enabling LCD controller\n");
533
534 /* Sequence from 11.7.10 */
Marek Vasut2db1e962010-09-09 09:50:39 +0200535 writel(vid->pxa.reg_lccr3, LCCR3);
536 writel(vid->pxa.reg_lccr2, LCCR2);
537 writel(vid->pxa.reg_lccr1, LCCR1);
538 writel(vid->pxa.reg_lccr0 & ~LCCR0_ENB, LCCR0);
539 writel(vid->pxa.fdadr0, FDADR0);
540 writel(vid->pxa.fdadr1, FDADR1);
541 writel(readl(LCCR0) | LCCR0_ENB, LCCR0);
wdenk7a428cc2003-06-15 22:40:42 +0000542
Marek Vasut23cf8e42009-11-28 13:57:43 +0100543#ifdef CONFIG_CPU_MONAHANS
Marek Vasut2db1e962010-09-09 09:50:39 +0200544 writel(readl(CKENA) | CKENA_1_LCD, CKENA);
Marek Vasut23cf8e42009-11-28 13:57:43 +0100545#else
Marek Vasut2db1e962010-09-09 09:50:39 +0200546 writel(readl(CKEN) | CKEN16_LCD, CKEN);
Marek Vasut23cf8e42009-11-28 13:57:43 +0100547#endif
wdenk7a428cc2003-06-15 22:40:42 +0000548
Marek Vasut2db1e962010-09-09 09:50:39 +0200549 debug("FDADR0 = 0x%08x\n", readl(FDADR0));
550 debug("FDADR1 = 0x%08x\n", readl(FDADR1));
551 debug("LCCR0 = 0x%08x\n", readl(LCCR0));
552 debug("LCCR1 = 0x%08x\n", readl(LCCR1));
553 debug("LCCR2 = 0x%08x\n", readl(LCCR2));
554 debug("LCCR3 = 0x%08x\n", readl(LCCR3));
wdenk7a428cc2003-06-15 22:40:42 +0000555}
556
wdenk9ca7bbc2004-10-09 23:25:58 +0000557static int pxafb_init (vidinfo_t *vid)
wdenk7a428cc2003-06-15 22:40:42 +0000558{
559 struct pxafb_info *fbi = &vid->pxa;
560
561 debug("Configuring PXA LCD\n");
562
563 fbi->reg_lccr0 = REG_LCCR0;
564 fbi->reg_lccr3 = REG_LCCR3;
565
566 debug("vid: vl_col=%d hslen=%d lm=%d rm=%d\n",
567 vid->vl_col, vid->vl_hpw,
568 vid->vl_blw, vid->vl_elw);
569 debug("vid: vl_row=%d vslen=%d um=%d bm=%d\n",
570 vid->vl_row, vid->vl_vpw,
571 vid->vl_bfw, vid->vl_efw);
572
573 fbi->reg_lccr1 =
574 LCCR1_DisWdth(vid->vl_col) +
575 LCCR1_HorSnchWdth(vid->vl_hpw) +
576 LCCR1_BegLnDel(vid->vl_blw) +
577 LCCR1_EndLnDel(vid->vl_elw);
wdenk57b2d802003-06-27 21:31:46 +0000578
wdenk7a428cc2003-06-15 22:40:42 +0000579 fbi->reg_lccr2 =
580 LCCR2_DisHght(vid->vl_row) +
581 LCCR2_VrtSnchWdth(vid->vl_vpw) +
582 LCCR2_BegFrmDel(vid->vl_bfw) +
583 LCCR2_EndFrmDel(vid->vl_efw);
584
wdenk57b2d802003-06-27 21:31:46 +0000585 fbi->reg_lccr3 = REG_LCCR3 & ~(LCCR3_HSP | LCCR3_VSP);
wdenk9ca7bbc2004-10-09 23:25:58 +0000586 fbi->reg_lccr3 |= (vid->vl_hsp ? LCCR3_HorSnchL : LCCR3_HorSnchH)
587 | (vid->vl_vsp ? LCCR3_VrtSnchL : LCCR3_VrtSnchH);
wdenk57b2d802003-06-27 21:31:46 +0000588
wdenk7a428cc2003-06-15 22:40:42 +0000589
590 /* setup dma descriptors */
591 fbi->dmadesc_fblow = (struct pxafb_dma_descriptor *)((unsigned int)fbi->palette - 3*16);
592 fbi->dmadesc_fbhigh = (struct pxafb_dma_descriptor *)((unsigned int)fbi->palette - 2*16);
593 fbi->dmadesc_palette = (struct pxafb_dma_descriptor *)((unsigned int)fbi->palette - 1*16);
594
595 #define BYTES_PER_PANEL ((fbi->reg_lccr0 & LCCR0_SDS) ? \
wdenk57b2d802003-06-27 21:31:46 +0000596 (vid->vl_col * vid->vl_row * NBITS(vid->vl_bpix) / 8 / 2) : \
597 (vid->vl_col * vid->vl_row * NBITS(vid->vl_bpix) / 8))
598
wdenk7a428cc2003-06-15 22:40:42 +0000599 /* populate descriptors */
600 fbi->dmadesc_fblow->fdadr = (u_long)fbi->dmadesc_fblow;
601 fbi->dmadesc_fblow->fsadr = fbi->screen + BYTES_PER_PANEL;
602 fbi->dmadesc_fblow->fidr = 0;
603 fbi->dmadesc_fblow->ldcmd = BYTES_PER_PANEL;
604
605 fbi->fdadr1 = (u_long)fbi->dmadesc_fblow; /* only used in dual-panel mode */
wdenk57b2d802003-06-27 21:31:46 +0000606
wdenk7a428cc2003-06-15 22:40:42 +0000607 fbi->dmadesc_fbhigh->fsadr = fbi->screen;
608 fbi->dmadesc_fbhigh->fidr = 0;
609 fbi->dmadesc_fbhigh->ldcmd = BYTES_PER_PANEL;
610
611 fbi->dmadesc_palette->fsadr = fbi->palette;
612 fbi->dmadesc_palette->fidr = 0;
613 fbi->dmadesc_palette->ldcmd = (fbi->palette_size * 2) | LDCMD_PAL;
614
615 if( NBITS(vid->vl_bpix) < 12)
616 {
617 /* assume any mode with <12 bpp is palette driven */
618 fbi->dmadesc_palette->fdadr = (u_long)fbi->dmadesc_fbhigh;
619 fbi->dmadesc_fbhigh->fdadr = (u_long)fbi->dmadesc_palette;
620 /* flips back and forth between pal and fbhigh */
wdenk57b2d802003-06-27 21:31:46 +0000621 fbi->fdadr0 = (u_long)fbi->dmadesc_palette;
wdenk7a428cc2003-06-15 22:40:42 +0000622 }
623 else
624 {
625 /* palette shouldn't be loaded in true-color mode */
626 fbi->dmadesc_fbhigh->fdadr = (u_long)fbi->dmadesc_fbhigh;
627 fbi->fdadr0 = (u_long)fbi->dmadesc_fbhigh; /* no pal just fbhigh */
628 }
629
630 debug("fbi->dmadesc_fblow = 0x%lx\n", (u_long)fbi->dmadesc_fblow);
631 debug("fbi->dmadesc_fbhigh = 0x%lx\n", (u_long)fbi->dmadesc_fbhigh);
632 debug("fbi->dmadesc_palette = 0x%lx\n", (u_long)fbi->dmadesc_palette);
633
634 debug("fbi->dmadesc_fblow->fdadr = 0x%lx\n", fbi->dmadesc_fblow->fdadr);
635 debug("fbi->dmadesc_fbhigh->fdadr = 0x%lx\n", fbi->dmadesc_fbhigh->fdadr);
636 debug("fbi->dmadesc_palette->fdadr = 0x%lx\n", fbi->dmadesc_palette->fdadr);
637
638 debug("fbi->dmadesc_fblow->fsadr = 0x%lx\n", fbi->dmadesc_fblow->fsadr);
639 debug("fbi->dmadesc_fbhigh->fsadr = 0x%lx\n", fbi->dmadesc_fbhigh->fsadr);
640 debug("fbi->dmadesc_palette->fsadr = 0x%lx\n", fbi->dmadesc_palette->fsadr);
641
642 debug("fbi->dmadesc_fblow->ldcmd = 0x%lx\n", fbi->dmadesc_fblow->ldcmd);
643 debug("fbi->dmadesc_fbhigh->ldcmd = 0x%lx\n", fbi->dmadesc_fbhigh->ldcmd);
644 debug("fbi->dmadesc_palette->ldcmd = 0x%lx\n", fbi->dmadesc_palette->ldcmd);
wdenk57b2d802003-06-27 21:31:46 +0000645
wdenk7a428cc2003-06-15 22:40:42 +0000646 return 0;
647}
648
649/************************************************************************/
650/************************************************************************/
651
652#endif /* CONFIG_LCD */