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York Suna8778802007-10-29 13:58:39 -05001/*
Timur Tabiba8e76b2011-04-11 14:18:22 -05002 * Copyright 2007, 2010-2011 Freescale Semiconductor, Inc.
3 * Authors: York Sun <yorksun@freescale.com>
4 * Timur Tabi <timur@freescale.com>
York Suna8778802007-10-29 13:58:39 -05005 *
6 * FSL DIU Framebuffer driver
7 *
Wolfgang Denk1a459662013-07-08 09:37:19 +02008 * SPDX-License-Identifier: GPL-2.0+
York Suna8778802007-10-29 13:58:39 -05009 */
10
York Suna8778802007-10-29 13:58:39 -050011#include <common.h>
York Suna8778802007-10-29 13:58:39 -050012#include <malloc.h>
Jerry Huang15351852010-04-08 15:56:07 +080013#include <asm/io.h>
York Suna8778802007-10-29 13:58:39 -050014
Timur Tabiba8e76b2011-04-11 14:18:22 -050015#include "videomodes.h"
16#include <video_fb.h>
Anatolij Gustschin9e70d132010-09-24 01:06:37 +020017#include <fsl_diu_fb.h>
Timur Tabi8c6b2502011-08-22 10:54:02 -050018#include <linux/list.h>
19#include <linux/fb.h>
York Suna8778802007-10-29 13:58:39 -050020
Anatolij Gustschina3921ee2010-04-24 19:27:09 +020021/* This setting is used for the ifm pdm360ng with PRIMEVIEW PM070WL3 */
Timur Tabi3b4a2262011-05-26 09:02:17 -050022static struct fb_videomode fsl_diu_mode_800_480 = {
23 .name = "800x480-60",
Anatolij Gustschina3921ee2010-04-24 19:27:09 +020024 .refresh = 60,
25 .xres = 800,
26 .yres = 480,
27 .pixclock = 31250,
28 .left_margin = 86,
29 .right_margin = 42,
30 .upper_margin = 33,
31 .lower_margin = 10,
32 .hsync_len = 128,
33 .vsync_len = 2,
34 .sync = 0,
35 .vmode = FB_VMODE_NONINTERLACED
36};
37
Timur Tabi3b4a2262011-05-26 09:02:17 -050038/* For the SHARP LQ084S3LG01, used on the P1022DS board */
39static struct fb_videomode fsl_diu_mode_800_600 = {
40 .name = "800x600-60",
41 .refresh = 60,
42 .xres = 800,
43 .yres = 600,
44 .pixclock = 25000,
45 .left_margin = 88,
46 .right_margin = 40,
47 .upper_margin = 23,
48 .lower_margin = 1,
49 .hsync_len = 128,
50 .vsync_len = 4,
51 .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
52 .vmode = FB_VMODE_NONINTERLACED
53};
54
York Suna8778802007-10-29 13:58:39 -050055/*
56 * These parameters give default parameters
57 * for video output 1024x768,
58 * FIXME - change timing to proper amounts
59 * hsync 31.5kHz, vsync 60Hz
60 */
Timur Tabi3b4a2262011-05-26 09:02:17 -050061static struct fb_videomode fsl_diu_mode_1024_768 = {
Timur Tabiba8e76b2011-04-11 14:18:22 -050062 .name = "1024x768-60",
York Suna8778802007-10-29 13:58:39 -050063 .refresh = 60,
64 .xres = 1024,
65 .yres = 768,
66 .pixclock = 15385,
67 .left_margin = 160,
68 .right_margin = 24,
69 .upper_margin = 29,
70 .lower_margin = 3,
71 .hsync_len = 136,
72 .vsync_len = 6,
73 .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
74 .vmode = FB_VMODE_NONINTERLACED
75};
76
Timur Tabi3b4a2262011-05-26 09:02:17 -050077static struct fb_videomode fsl_diu_mode_1280_1024 = {
York Suna8778802007-10-29 13:58:39 -050078 .name = "1280x1024-60",
79 .refresh = 60,
80 .xres = 1280,
81 .yres = 1024,
82 .pixclock = 9375,
83 .left_margin = 38,
84 .right_margin = 128,
85 .upper_margin = 2,
86 .lower_margin = 7,
87 .hsync_len = 216,
88 .vsync_len = 37,
89 .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
90 .vmode = FB_VMODE_NONINTERLACED
91};
92
Jerry Huangdebef5c2011-11-01 15:16:43 +000093static struct fb_videomode fsl_diu_mode_1280_720 = {
94 .name = "1280x720-60",
95 .refresh = 60,
96 .xres = 1280,
97 .yres = 720,
98 .pixclock = 13426,
99 .left_margin = 192,
100 .right_margin = 64,
101 .upper_margin = 22,
102 .lower_margin = 1,
103 .hsync_len = 136,
104 .vsync_len = 3,
105 .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
106 .vmode = FB_VMODE_NONINTERLACED
107};
108
109static struct fb_videomode fsl_diu_mode_1920_1080 = {
110 .name = "1920x1080-60",
111 .refresh = 60,
112 .xres = 1920,
113 .yres = 1080,
114 .pixclock = 5787,
115 .left_margin = 328,
116 .right_margin = 120,
117 .upper_margin = 34,
118 .lower_margin = 1,
119 .hsync_len = 208,
120 .vsync_len = 3,
121 .sync = FB_SYNC_COMP_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
122 .vmode = FB_VMODE_NONINTERLACED
123};
124
York Suna8778802007-10-29 13:58:39 -0500125/*
126 * These are the fields of area descriptor(in DDR memory) for every plane
127 */
128struct diu_ad {
129 /* Word 0(32-bit) in DDR memory */
Timur Tabiba8e76b2011-04-11 14:18:22 -0500130 __le32 pix_fmt; /* hard coding pixel format */
York Suna8778802007-10-29 13:58:39 -0500131 /* Word 1(32-bit) in DDR memory */
Timur Tabiba8e76b2011-04-11 14:18:22 -0500132 __le32 addr;
York Suna8778802007-10-29 13:58:39 -0500133 /* Word 2(32-bit) in DDR memory */
Timur Tabiba8e76b2011-04-11 14:18:22 -0500134 __le32 src_size_g_alpha;
York Suna8778802007-10-29 13:58:39 -0500135 /* Word 3(32-bit) in DDR memory */
Timur Tabiba8e76b2011-04-11 14:18:22 -0500136 __le32 aoi_size;
York Suna8778802007-10-29 13:58:39 -0500137 /* Word 4(32-bit) in DDR memory */
Timur Tabiba8e76b2011-04-11 14:18:22 -0500138 __le32 offset_xyi;
York Suna8778802007-10-29 13:58:39 -0500139 /* Word 5(32-bit) in DDR memory */
Timur Tabiba8e76b2011-04-11 14:18:22 -0500140 __le32 offset_xyd;
York Suna8778802007-10-29 13:58:39 -0500141 /* Word 6(32-bit) in DDR memory */
Timur Tabiba8e76b2011-04-11 14:18:22 -0500142 __le32 ckmax_r:8;
143 __le32 ckmax_g:8;
144 __le32 ckmax_b:8;
145 __le32 res9:8;
York Suna8778802007-10-29 13:58:39 -0500146 /* Word 7(32-bit) in DDR memory */
Timur Tabiba8e76b2011-04-11 14:18:22 -0500147 __le32 ckmin_r:8;
148 __le32 ckmin_g:8;
149 __le32 ckmin_b:8;
150 __le32 res10:8;
York Suna8778802007-10-29 13:58:39 -0500151 /* Word 8(32-bit) in DDR memory */
Timur Tabiba8e76b2011-04-11 14:18:22 -0500152 __le32 next_ad;
York Suna8778802007-10-29 13:58:39 -0500153 /* Word 9(32-bit) in DDR memory, just for 64-bit aligned */
Timur Tabiba8e76b2011-04-11 14:18:22 -0500154 __le32 res[3];
155} __attribute__ ((packed));
York Suna8778802007-10-29 13:58:39 -0500156
157/*
158 * DIU register map
159 */
160struct diu {
Timur Tabiba8e76b2011-04-11 14:18:22 -0500161 __be32 desc[3];
162 __be32 gamma;
163 __be32 pallete;
164 __be32 cursor;
165 __be32 curs_pos;
166 __be32 diu_mode;
167 __be32 bgnd;
168 __be32 bgnd_wb;
169 __be32 disp_size;
170 __be32 wb_size;
171 __be32 wb_mem_addr;
172 __be32 hsyn_para;
173 __be32 vsyn_para;
174 __be32 syn_pol;
175 __be32 thresholds;
176 __be32 int_status;
177 __be32 int_mask;
178 __be32 colorbar[8];
179 __be32 filling;
180 __be32 plut;
York Suna8778802007-10-29 13:58:39 -0500181} __attribute__ ((packed));
182
Timur Tabiba8e76b2011-04-11 14:18:22 -0500183struct diu_addr {
184 void *vaddr; /* Virtual address */
185 u32 paddr; /* 32-bit physical address */
186 unsigned int offset; /* Alignment offset */
York Suna8778802007-10-29 13:58:39 -0500187};
188
Timur Tabiba8e76b2011-04-11 14:18:22 -0500189static struct fb_info info;
York Suna8778802007-10-29 13:58:39 -0500190
York Suna8778802007-10-29 13:58:39 -0500191/*
Timur Tabiba8e76b2011-04-11 14:18:22 -0500192 * Align to 64-bit(8-byte), 32-byte, etc.
York Suna8778802007-10-29 13:58:39 -0500193 */
Timur Tabiba8e76b2011-04-11 14:18:22 -0500194static int allocate_buf(struct diu_addr *buf, u32 size, u32 bytes_align)
195{
196 u32 offset, ssize;
197 u32 mask;
York Suna8778802007-10-29 13:58:39 -0500198
Timur Tabiba8e76b2011-04-11 14:18:22 -0500199 ssize = size + bytes_align;
200 buf->vaddr = malloc(ssize);
201 if (!buf->vaddr)
202 return -1;
York Suna8778802007-10-29 13:58:39 -0500203
Timur Tabiba8e76b2011-04-11 14:18:22 -0500204 memset(buf->vaddr, 0, ssize);
205 mask = bytes_align - 1;
206 offset = (u32)buf->vaddr & mask;
207 if (offset) {
208 buf->offset = bytes_align - offset;
209 buf->vaddr += offset;
210 } else
211 buf->offset = 0;
York Suna8778802007-10-29 13:58:39 -0500212
Timur Tabiba8e76b2011-04-11 14:18:22 -0500213 buf->paddr = virt_to_phys(buf->vaddr);
214 return 0;
215}
York Suna8778802007-10-29 13:58:39 -0500216
Timur Tabiba8e76b2011-04-11 14:18:22 -0500217/*
218 * Allocate a framebuffer and an Area Descriptor that points to it. Both
219 * are created in the same memory block. The Area Descriptor is updated to
220 * point to the framebuffer memory. Memory is aligned as needed.
221 */
222static struct diu_ad *allocate_fb(unsigned int xres, unsigned int yres,
Timur Tabi8c6b2502011-08-22 10:54:02 -0500223 unsigned int depth, char **fb)
Timur Tabiba8e76b2011-04-11 14:18:22 -0500224{
225 unsigned long size = xres * yres * depth;
226 struct diu_addr addr;
227 struct diu_ad *ad;
228 size_t ad_size = roundup(sizeof(struct diu_ad), 32);
York Suna8778802007-10-29 13:58:39 -0500229
Timur Tabiba8e76b2011-04-11 14:18:22 -0500230 /*
231 * Allocate a memory block that holds the Area Descriptor and the
232 * frame buffer right behind it. To keep the code simple, everything
233 * is aligned on a 32-byte address.
234 */
235 if (allocate_buf(&addr, ad_size + size, 32) < 0)
236 return NULL;
237
238 ad = addr.vaddr;
239 ad->addr = cpu_to_le32(addr.paddr + ad_size);
240 ad->aoi_size = cpu_to_le32((yres << 16) | xres);
241 ad->src_size_g_alpha = cpu_to_le32((yres << 12) | xres);
242 ad->offset_xyi = 0;
243 ad->offset_xyd = 0;
244
245 if (fb)
246 *fb = addr.vaddr + ad_size;
247
248 return ad;
249}
250
Timur Tabi3b4a2262011-05-26 09:02:17 -0500251int fsl_diu_init(u16 xres, u16 yres, u32 pixel_format, int gamma_fix)
York Suna8778802007-10-29 13:58:39 -0500252{
253 struct fb_videomode *fsl_diu_mode_db;
Timur Tabiba8e76b2011-04-11 14:18:22 -0500254 struct diu_ad *ad;
255 struct diu *hw = (struct diu *)CONFIG_SYS_DIU_ADDR;
256 u8 *gamma_table_base;
York Suna8778802007-10-29 13:58:39 -0500257 unsigned int i, j;
Timur Tabiba8e76b2011-04-11 14:18:22 -0500258 struct diu_addr gamma;
259 struct diu_addr cursor;
York Suna8778802007-10-29 13:58:39 -0500260
Timur Tabi3b4a2262011-05-26 09:02:17 -0500261/* Convert the X,Y resolution pair into a single number */
262#define RESOLUTION(x, y) (((u32)(x) << 16) | (y))
263
264 switch (RESOLUTION(xres, yres)) {
265 case RESOLUTION(800, 480):
266 fsl_diu_mode_db = &fsl_diu_mode_800_480;
Anatolij Gustschina3921ee2010-04-24 19:27:09 +0200267 break;
Timur Tabi3b4a2262011-05-26 09:02:17 -0500268 case RESOLUTION(800, 600):
269 fsl_diu_mode_db = &fsl_diu_mode_800_600;
Jerry Huang15006cb2011-10-30 20:19:54 +0000270 break;
Timur Tabi3b4a2262011-05-26 09:02:17 -0500271 case RESOLUTION(1024, 768):
272 fsl_diu_mode_db = &fsl_diu_mode_1024_768;
Jerry Huang15006cb2011-10-30 20:19:54 +0000273 break;
Timur Tabi3b4a2262011-05-26 09:02:17 -0500274 case RESOLUTION(1280, 1024):
275 fsl_diu_mode_db = &fsl_diu_mode_1280_1024;
Anatolij Gustschina3921ee2010-04-24 19:27:09 +0200276 break;
Jerry Huangdebef5c2011-11-01 15:16:43 +0000277 case RESOLUTION(1280, 720):
278 fsl_diu_mode_db = &fsl_diu_mode_1280_720;
279 break;
280 case RESOLUTION(1920, 1080):
281 fsl_diu_mode_db = &fsl_diu_mode_1920_1080;
282 break;
Anatolij Gustschina3921ee2010-04-24 19:27:09 +0200283 default:
Timur Tabi3b4a2262011-05-26 09:02:17 -0500284 printf("DIU: Unsupported resolution %ux%u\n", xres, yres);
285 return -1;
York Suna8778802007-10-29 13:58:39 -0500286 }
287
York Suna8778802007-10-29 13:58:39 -0500288 /* read mode info */
Timur Tabiba8e76b2011-04-11 14:18:22 -0500289 info.var.xres = fsl_diu_mode_db->xres;
290 info.var.yres = fsl_diu_mode_db->yres;
291 info.var.bits_per_pixel = 32;
292 info.var.pixclock = fsl_diu_mode_db->pixclock;
293 info.var.left_margin = fsl_diu_mode_db->left_margin;
294 info.var.right_margin = fsl_diu_mode_db->right_margin;
295 info.var.upper_margin = fsl_diu_mode_db->upper_margin;
296 info.var.lower_margin = fsl_diu_mode_db->lower_margin;
297 info.var.hsync_len = fsl_diu_mode_db->hsync_len;
298 info.var.vsync_len = fsl_diu_mode_db->vsync_len;
299 info.var.sync = fsl_diu_mode_db->sync;
300 info.var.vmode = fsl_diu_mode_db->vmode;
Timur Tabi8c6b2502011-08-22 10:54:02 -0500301 info.fix.line_length = info.var.xres * info.var.bits_per_pixel / 8;
Timur Tabiba8e76b2011-04-11 14:18:22 -0500302
303 /* Memory allocation for framebuffer */
Timur Tabi8c6b2502011-08-22 10:54:02 -0500304 info.screen_size =
Timur Tabiba8e76b2011-04-11 14:18:22 -0500305 info.var.xres * info.var.yres * (info.var.bits_per_pixel / 8);
306 ad = allocate_fb(info.var.xres, info.var.yres,
307 info.var.bits_per_pixel / 8, &info.screen_base);
308 if (!ad) {
309 printf("DIU: Out of memory\n");
310 return -1;
311 }
York Suna8778802007-10-29 13:58:39 -0500312
313 ad->pix_fmt = pixel_format;
York Suna8778802007-10-29 13:58:39 -0500314
315 /* Disable chroma keying function */
316 ad->ckmax_r = 0;
317 ad->ckmax_g = 0;
318 ad->ckmax_b = 0;
319
320 ad->ckmin_r = 255;
321 ad->ckmin_g = 255;
322 ad->ckmin_b = 255;
323
Timur Tabiba8e76b2011-04-11 14:18:22 -0500324 /* Initialize the gamma table */
325 if (allocate_buf(&gamma, 256 * 3, 32) < 0) {
326 printf("DIU: Out of memory\n");
327 return -1;
328 }
329 gamma_table_base = gamma.vaddr;
York Suna8778802007-10-29 13:58:39 -0500330 for (i = 0; i <= 2; i++)
Timur Tabiba8e76b2011-04-11 14:18:22 -0500331 for (j = 0; j < 256; j++)
York Suna8778802007-10-29 13:58:39 -0500332 *gamma_table_base++ = j;
333
334 if (gamma_fix == 1) { /* fix the gamma */
Timur Tabiba8e76b2011-04-11 14:18:22 -0500335 gamma_table_base = gamma.vaddr;
336 for (i = 0; i < 256 * 3; i++) {
York Suna8778802007-10-29 13:58:39 -0500337 gamma_table_base[i] = (gamma_table_base[i] << 2)
338 | ((gamma_table_base[i] >> 6) & 0x03);
339 }
340 }
341
Timur Tabiba8e76b2011-04-11 14:18:22 -0500342 /* Initialize the cursor */
343 if (allocate_buf(&cursor, 32 * 32 * 2, 32) < 0) {
344 printf("DIU: Can't alloc cursor data\n");
345 return -1;
346 }
York Suna8778802007-10-29 13:58:39 -0500347
348 /* Program DIU registers */
Timur Tabiba8e76b2011-04-11 14:18:22 -0500349 out_be32(&hw->diu_mode, 0); /* Temporarily disable the DIU */
York Suna8778802007-10-29 13:58:39 -0500350
Timur Tabiba8e76b2011-04-11 14:18:22 -0500351 out_be32(&hw->gamma, gamma.paddr);
352 out_be32(&hw->cursor, cursor.paddr);
Jerry Huang15351852010-04-08 15:56:07 +0800353 out_be32(&hw->bgnd, 0x007F7F7F);
Timur Tabiba8e76b2011-04-11 14:18:22 -0500354 out_be32(&hw->disp_size, info.var.yres << 16 | info.var.xres);
Timur Tabiba8e76b2011-04-11 14:18:22 -0500355 out_be32(&hw->hsyn_para, info.var.left_margin << 22 |
356 info.var.hsync_len << 11 |
357 info.var.right_margin);
Jerry Huang15351852010-04-08 15:56:07 +0800358
Timur Tabiba8e76b2011-04-11 14:18:22 -0500359 out_be32(&hw->vsyn_para, info.var.upper_margin << 22 |
360 info.var.vsync_len << 11 |
361 info.var.lower_margin);
York Suna8778802007-10-29 13:58:39 -0500362
York Sun3b80c5f2008-05-05 10:19:59 -0500363 /* Pixel Clock configuration */
Timur Tabiba8e76b2011-04-11 14:18:22 -0500364 diu_set_pixel_clock(info.var.pixclock);
York Suna8778802007-10-29 13:58:39 -0500365
Timur Tabiba8e76b2011-04-11 14:18:22 -0500366 /* Set the frame buffers */
367 out_be32(&hw->desc[0], virt_to_phys(ad));
Timur Tabi15b83382012-09-17 11:12:42 +0000368 out_be32(&hw->desc[1], 0);
369 out_be32(&hw->desc[2], 0);
York Suna8778802007-10-29 13:58:39 -0500370
Timur Tabiba8e76b2011-04-11 14:18:22 -0500371 /* Enable the DIU, set display to all three planes */
372 out_be32(&hw->diu_mode, 1);
York Suna8778802007-10-29 13:58:39 -0500373
374 return 0;
375}
376
Anatolij Gustschin9e70d132010-09-24 01:06:37 +0200377void *video_hw_init(void)
378{
Timur Tabiba8e76b2011-04-11 14:18:22 -0500379 static GraphicDevice ctfb;
380 const char *options;
381 unsigned int depth = 0, freq = 0;
Anatolij Gustschin9e70d132010-09-24 01:06:37 +0200382
Timur Tabiba8e76b2011-04-11 14:18:22 -0500383 if (!video_get_video_mode(&ctfb.winSizeX, &ctfb.winSizeY, &depth, &freq,
384 &options))
385 return NULL;
386
387 /* Find the monitor port, which is a required option */
388 if (!options)
389 return NULL;
390 if (strncmp(options, "monitor=", 8) != 0)
391 return NULL;
392
393 if (platform_diu_init(ctfb.winSizeX, ctfb.winSizeY, options + 8) < 0)
Anatolij Gustschin9e70d132010-09-24 01:06:37 +0200394 return NULL;
395
396 /* fill in Graphic device struct */
397 sprintf(ctfb.modeIdent, "%ix%ix%i %ikHz %iHz",
Timur Tabiba8e76b2011-04-11 14:18:22 -0500398 ctfb.winSizeX, ctfb.winSizeY, depth, 64, freq);
Anatolij Gustschin9e70d132010-09-24 01:06:37 +0200399
Timur Tabiba8e76b2011-04-11 14:18:22 -0500400 ctfb.frameAdrs = (unsigned int)info.screen_base;
Anatolij Gustschin9e70d132010-09-24 01:06:37 +0200401 ctfb.plnSizeX = ctfb.winSizeX;
402 ctfb.plnSizeY = ctfb.winSizeY;
403
404 ctfb.gdfBytesPP = 4;
405 ctfb.gdfIndex = GDF_32BIT_X888RGB;
406
407 ctfb.isaBase = 0;
408 ctfb.pciBase = 0;
Timur Tabiba8e76b2011-04-11 14:18:22 -0500409 ctfb.memSize = info.screen_size;
Anatolij Gustschin9e70d132010-09-24 01:06:37 +0200410
411 /* Cursor Start Address */
412 ctfb.dprBase = 0;
413 ctfb.vprBase = 0;
414 ctfb.cprBase = 0;
415
416 return &ctfb;
417}