1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * (C) Copyright 2007
4 * DENX Software Engineering, Anatolij Gustschin, agust@denx.de
5 */
6
7 /*
8 * mb862xx.c - Graphic interface for Fujitsu CoralP/Lime
9 * PCI and video mode code was derived from smiLynxEM driver.
10 */
11
12 #include <common.h>
13
14 #include <asm/io.h>
15 #include <env.h>
16 #include <pci.h>
17 #include <video_fb.h>
18 #include "videomodes.h"
19 #include <mb862xx.h>
20
21 #if defined(CONFIG_POST)
22 #include <post.h>
23 #endif
24
25 /*
26 * Graphic Device
27 */
28 GraphicDevice mb862xx;
29
30 /*
31 * 32MB external RAM - 256K Chip MMIO = 0x1FC0000 ;
32 */
33 #define VIDEO_MEM_SIZE 0x01FC0000
34
35 #if defined(CONFIG_PCI)
36 #if defined(CONFIG_VIDEO_CORALP)
37
38 static struct pci_device_id supported[] = {
39 { PCI_VENDOR_ID_FUJITSU, PCI_DEVICE_ID_CORAL_P },
40 { PCI_VENDOR_ID_FUJITSU, PCI_DEVICE_ID_CORAL_PA },
41 { }
42 };
43
44 /* Internal clock frequency divider table, index is mode number */
45 unsigned int fr_div[] = { 0x00000f00, 0x00000900, 0x00000500 };
46 #endif
47 #endif
48
49 #if defined(CONFIG_VIDEO_CORALP)
50 #define rd_io in32r
51 #define wr_io out32r
52 #else
53 #define rd_io(addr) in_be32((volatile unsigned *)(addr))
54 #define wr_io(addr, val) out_be32((volatile unsigned *)(addr), (val))
55 #endif
56
57 #define HOST_RD_REG(off) rd_io((dev->frameAdrs + GC_HOST_BASE + (off)))
58 #define HOST_WR_REG(off, val) wr_io((dev->frameAdrs + GC_HOST_BASE + (off)), \
59 (val))
60 #define DISP_RD_REG(off) rd_io((dev->frameAdrs + GC_DISP_BASE + (off)))
61 #define DISP_WR_REG(off, val) wr_io((dev->frameAdrs + GC_DISP_BASE + (off)), \
62 (val))
63 #define DE_RD_REG(off) rd_io((dev->dprBase + (off)))
64 #define DE_WR_REG(off, val) wr_io((dev->dprBase + (off)), (val))
65
66 #if defined(CONFIG_VIDEO_CORALP)
67 #define DE_WR_FIFO(val) wr_io((dev->dprBase + (GC_GEO_FIFO)), (val))
68 #else
69 #define DE_WR_FIFO(val) wr_io((dev->dprBase + (GC_FIFO)), (val))
70 #endif
71
72 #define L0PAL_WR_REG(idx, val) wr_io((dev->frameAdrs + \
73 (GC_DISP_BASE | GC_L0PAL0) + \
74 ((idx) << 2)), (val))
75
76 #if defined(CONFIG_VIDEO_MB862xx_ACCEL)
gdc_sw_reset(void)77 static void gdc_sw_reset (void)
78 {
79 GraphicDevice *dev = &mb862xx;
80
81 HOST_WR_REG (GC_SRST, 0x1);
82 udelay (500);
83 video_hw_init ();
84 }
85
86
de_wait(void)87 static void de_wait (void)
88 {
89 GraphicDevice *dev = &mb862xx;
90 int lc = 0x10000;
91
92 /*
93 * Sync with software writes to framebuffer,
94 * try to reset if engine locked
95 */
96 while (DE_RD_REG (GC_CTR) & 0x00000131)
97 if (lc-- < 0) {
98 gdc_sw_reset ();
99 puts ("gdc reset done after drawing engine lock.\n");
100 break;
101 }
102 }
103
de_wait_slots(int slots)104 static void de_wait_slots (int slots)
105 {
106 GraphicDevice *dev = &mb862xx;
107 int lc = 0x10000;
108
109 /* Wait for free fifo slots */
110 while (DE_RD_REG (GC_IFCNT) < slots)
111 if (lc-- < 0) {
112 gdc_sw_reset ();
113 puts ("gdc reset done after drawing engine lock.\n");
114 break;
115 }
116 }
117 #endif
118
119 #if !defined(CONFIG_VIDEO_CORALP)
board_disp_init(void)120 static void board_disp_init (void)
121 {
122 GraphicDevice *dev = &mb862xx;
123 const gdc_regs *regs = board_get_regs ();
124
125 while (regs->index) {
126 DISP_WR_REG (regs->index, regs->value);
127 regs++;
128 }
129 }
130 #endif
131
132 /*
133 * Init drawing engine if accel enabled.
134 * Also clears visible framebuffer.
135 */
de_init(void)136 static void de_init (void)
137 {
138 GraphicDevice *dev = &mb862xx;
139 #if defined(CONFIG_VIDEO_MB862xx_ACCEL)
140 int cf = (dev->gdfBytesPP == 1) ? 0x0000 : 0x8000;
141
142 dev->dprBase = dev->frameAdrs + GC_DRAW_BASE;
143
144 /* Setup mode and fbbase, xres, fg, bg */
145 de_wait_slots (2);
146 DE_WR_FIFO (0xf1010108);
147 DE_WR_FIFO (cf | 0x0300);
148 DE_WR_REG (GC_FBR, 0x0);
149 DE_WR_REG (GC_XRES, dev->winSizeX);
150 DE_WR_REG (GC_FC, 0x0);
151 DE_WR_REG (GC_BC, 0x0);
152 /* Reset clipping */
153 DE_WR_REG (GC_CXMIN, 0x0);
154 DE_WR_REG (GC_CXMAX, dev->winSizeX);
155 DE_WR_REG (GC_CYMIN, 0x0);
156 DE_WR_REG (GC_CYMAX, dev->winSizeY);
157
158 /* Clear framebuffer using drawing engine */
159 de_wait_slots (3);
160 DE_WR_FIFO (0x09410000);
161 DE_WR_FIFO (0x00000000);
162 DE_WR_FIFO (dev->winSizeY << 16 | dev->winSizeX);
163 /* sync with SW access to framebuffer */
164 de_wait ();
165 #else
166 unsigned int i, *p;
167
168 i = dev->winSizeX * dev->winSizeY;
169 p = (unsigned int *)dev->frameAdrs;
170 while (i--)
171 *p++ = 0;
172 #endif
173 }
174
175 #if defined(CONFIG_VIDEO_CORALP)
176 /* use CCF and MMR parameters for Coral-P Eval. Board as default */
177 #ifndef CONFIG_SYS_MB862xx_CCF
178 #define CONFIG_SYS_MB862xx_CCF 0x00090000
179 #endif
180 #ifndef CONFIG_SYS_MB862xx_MMR
181 #define CONFIG_SYS_MB862xx_MMR 0x11d7fa13
182 #endif
183
pci_video_init(void)184 unsigned int pci_video_init (void)
185 {
186 GraphicDevice *dev = &mb862xx;
187 pci_dev_t devbusfn;
188 u16 device;
189
190 if ((devbusfn = pci_find_devices (supported, 0)) < 0) {
191 puts("controller not present\n");
192 return 0;
193 }
194
195 /* PCI setup */
196 pci_write_config_dword (devbusfn, PCI_COMMAND,
197 (PCI_COMMAND_MEMORY | PCI_COMMAND_IO));
198 pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_0, &dev->frameAdrs);
199 dev->frameAdrs = pci_mem_to_phys (devbusfn, dev->frameAdrs);
200
201 if (dev->frameAdrs == 0) {
202 puts ("PCI config: failed to get base address\n");
203 return 0;
204 }
205
206 dev->pciBase = dev->frameAdrs;
207
208 puts("Coral-");
209
210 pci_read_config_word(devbusfn, PCI_DEVICE_ID, &device);
211 switch (device) {
212 case PCI_DEVICE_ID_CORAL_P:
213 puts("P\n");
214 break;
215 case PCI_DEVICE_ID_CORAL_PA:
216 puts("PA\n");
217 break;
218 default:
219 puts("Unknown\n");
220 return 0;
221 }
222
223 /* Setup clocks and memory mode for Coral-P(A) */
224 HOST_WR_REG(GC_CCF, CONFIG_SYS_MB862xx_CCF);
225 udelay (200);
226 HOST_WR_REG(GC_MMR, CONFIG_SYS_MB862xx_MMR);
227 udelay (100);
228 return dev->frameAdrs;
229 }
230
card_init(void)231 unsigned int card_init (void)
232 {
233 GraphicDevice *dev = &mb862xx;
234 unsigned int cf, videomode, div = 0;
235 unsigned long t1, hsync, vsync;
236 char *penv;
237 int tmp, i, bpp;
238 struct ctfb_res_modes *res_mode;
239 struct ctfb_res_modes var_mode;
240
241 memset (dev, 0, sizeof (GraphicDevice));
242
243 if (!pci_video_init ())
244 return 0;
245
246 tmp = 0;
247 videomode = 0x310;
248 /* get video mode via environment */
249 penv = env_get("videomode");
250 if (penv) {
251 /* decide if it is a string */
252 if (penv[0] <= '9') {
253 videomode = (int) simple_strtoul (penv, NULL, 16);
254 tmp = 1;
255 }
256 } else {
257 tmp = 1;
258 }
259
260 if (tmp) {
261 /* parameter are vesa modes, search params */
262 for (i = 0; i < VESA_MODES_COUNT; i++) {
263 if (vesa_modes[i].vesanr == videomode)
264 break;
265 }
266 if (i == VESA_MODES_COUNT) {
267 printf ("\tno VESA Mode found, fallback to mode 0x%x\n",
268 videomode);
269 i = 0;
270 }
271 res_mode = (struct ctfb_res_modes *)
272 &res_mode_init[vesa_modes[i].resindex];
273 if (vesa_modes[i].resindex > 2) {
274 puts ("\tUnsupported resolution, using default\n");
275 bpp = vesa_modes[1].bits_per_pixel;
276 div = fr_div[1];
277 }
278 bpp = vesa_modes[i].bits_per_pixel;
279 div = fr_div[vesa_modes[i].resindex];
280 } else {
281 res_mode = (struct ctfb_res_modes *) &var_mode;
282 bpp = video_get_params (res_mode, penv);
283 }
284
285 /* calculate hsync and vsync freq (info only) */
286 t1 = (res_mode->left_margin + res_mode->xres +
287 res_mode->right_margin + res_mode->hsync_len) / 8;
288 t1 *= 8;
289 t1 *= res_mode->pixclock;
290 t1 /= 1000;
291 hsync = 1000000000L / t1;
292 t1 *= (res_mode->upper_margin + res_mode->yres +
293 res_mode->lower_margin + res_mode->vsync_len);
294 t1 /= 1000;
295 vsync = 1000000000L / t1;
296
297 /* fill in Graphic device struct */
298 sprintf (dev->modeIdent, "%dx%dx%d %ldkHz %ldHz", res_mode->xres,
299 res_mode->yres, bpp, (hsync / 1000), (vsync / 1000));
300 printf ("\t%s\n", dev->modeIdent);
301 dev->winSizeX = res_mode->xres;
302 dev->winSizeY = res_mode->yres;
303 dev->memSize = VIDEO_MEM_SIZE;
304
305 switch (bpp) {
306 case 8:
307 dev->gdfIndex = GDF__8BIT_INDEX;
308 dev->gdfBytesPP = 1;
309 break;
310 case 15:
311 case 16:
312 dev->gdfIndex = GDF_15BIT_555RGB;
313 dev->gdfBytesPP = 2;
314 break;
315 default:
316 printf ("\t%d bpp configured, but only 8,15 and 16 supported\n",
317 bpp);
318 puts ("\tfallback to 15bpp\n");
319 dev->gdfIndex = GDF_15BIT_555RGB;
320 dev->gdfBytesPP = 2;
321 }
322
323 /* Setup dot clock (internal pll, division rate) */
324 DISP_WR_REG (GC_DCM1, div);
325 /* L0 init */
326 cf = (dev->gdfBytesPP == 1) ? 0x00000000 : 0x80000000;
327 DISP_WR_REG (GC_L0M, ((dev->winSizeX * dev->gdfBytesPP) / 64) << 16 |
328 (dev->winSizeY - 1) | cf);
329 DISP_WR_REG (GC_L0OA0, 0x0);
330 DISP_WR_REG (GC_L0DA0, 0x0);
331 DISP_WR_REG (GC_L0DY_L0DX, 0x0);
332 DISP_WR_REG (GC_L0EM, 0x0);
333 DISP_WR_REG (GC_L0WY_L0WX, 0x0);
334 DISP_WR_REG (GC_L0WH_L0WW, (dev->winSizeY - 1) << 16 | dev->winSizeX);
335
336 /* Display timing init */
337 DISP_WR_REG (GC_HTP_A, (dev->winSizeX +
338 res_mode->left_margin +
339 res_mode->right_margin +
340 res_mode->hsync_len - 1) << 16);
341 DISP_WR_REG (GC_HDB_HDP_A, (dev->winSizeX - 1) << 16 |
342 (dev->winSizeX - 1));
343 DISP_WR_REG (GC_VSW_HSW_HSP_A, (res_mode->vsync_len - 1) << 24 |
344 (res_mode->hsync_len - 1) << 16 |
345 (dev->winSizeX +
346 res_mode->right_margin - 1));
347 DISP_WR_REG (GC_VTR_A, (dev->winSizeY + res_mode->lower_margin +
348 res_mode->upper_margin +
349 res_mode->vsync_len - 1) << 16);
350 DISP_WR_REG (GC_VDP_VSP_A, (dev->winSizeY-1) << 16 |
351 (dev->winSizeY +
352 res_mode->lower_margin - 1));
353 DISP_WR_REG (GC_WY_WX, 0x0);
354 DISP_WR_REG (GC_WH_WW, dev->winSizeY << 16 | dev->winSizeX);
355 /* Display enable, L0 layer */
356 DISP_WR_REG (GC_DCM1, 0x80010000 | div);
357
358 return dev->frameAdrs;
359 }
360 #endif
361
362
363 #if !defined(CONFIG_VIDEO_CORALP)
mb862xx_probe(unsigned int addr)364 int mb862xx_probe(unsigned int addr)
365 {
366 GraphicDevice *dev = &mb862xx;
367 unsigned int reg;
368
369 dev->frameAdrs = addr;
370 dev->dprBase = dev->frameAdrs + GC_DRAW_BASE;
371
372 /* Try to access GDC ID/Revision registers */
373 reg = HOST_RD_REG (GC_CID);
374 reg = HOST_RD_REG (GC_CID);
375 if (reg == 0x303) {
376 reg = DE_RD_REG(GC_REV);
377 reg = DE_RD_REG(GC_REV);
378 if ((reg & ~0xff) == 0x20050100)
379 return MB862XX_TYPE_LIME;
380 }
381
382 return 0;
383 }
384 #endif
385
video_hw_init(void)386 void *video_hw_init (void)
387 {
388 GraphicDevice *dev = &mb862xx;
389
390 puts ("Video: Fujitsu ");
391
392 memset (dev, 0, sizeof (GraphicDevice));
393
394 #if defined(CONFIG_VIDEO_CORALP)
395 if (card_init () == 0)
396 return NULL;
397 #else
398 /*
399 * Preliminary init of the onboard graphic controller,
400 * retrieve base address
401 */
402 if ((dev->frameAdrs = board_video_init ()) == 0) {
403 puts ("Controller not found!\n");
404 return NULL;
405 } else {
406 puts ("Lime\n");
407
408 /* Set Change of Clock Frequency Register */
409 HOST_WR_REG (GC_CCF, CONFIG_SYS_MB862xx_CCF);
410 /* Delay required */
411 udelay(300);
412 /* Set Memory I/F Mode Register) */
413 HOST_WR_REG (GC_MMR, CONFIG_SYS_MB862xx_MMR);
414 }
415 #endif
416
417 de_init ();
418
419 #if !defined(CONFIG_VIDEO_CORALP)
420 board_disp_init ();
421 #endif
422
423 #if (defined(CONFIG_LWMON5) || \
424 defined(CONFIG_SOCRATES)) && !(CONFIG_POST & CONFIG_SYS_POST_SYSMON)
425 /* Lamp on */
426 board_backlight_switch (1);
427 #endif
428
429 return dev;
430 }
431
432 /*
433 * Set a RGB color in the LUT
434 */
video_set_lut(unsigned int index,unsigned char r,unsigned char g,unsigned char b)435 void video_set_lut (unsigned int index, unsigned char r,
436 unsigned char g, unsigned char b)
437 {
438 GraphicDevice *dev = &mb862xx;
439
440 L0PAL_WR_REG (index, (r << 16) | (g << 8) | (b));
441 }
442
443 #if defined(CONFIG_VIDEO_MB862xx_ACCEL)
444 /*
445 * Drawing engine Fill and BitBlt screen region
446 */
video_hw_rectfill(unsigned int bpp,unsigned int dst_x,unsigned int dst_y,unsigned int dim_x,unsigned int dim_y,unsigned int color)447 void video_hw_rectfill (unsigned int bpp, unsigned int dst_x,
448 unsigned int dst_y, unsigned int dim_x,
449 unsigned int dim_y, unsigned int color)
450 {
451 GraphicDevice *dev = &mb862xx;
452
453 de_wait_slots (3);
454 DE_WR_REG (GC_FC, color);
455 DE_WR_FIFO (0x09410000);
456 DE_WR_FIFO ((dst_y << 16) | dst_x);
457 DE_WR_FIFO ((dim_y << 16) | dim_x);
458 de_wait ();
459 }
460
video_hw_bitblt(unsigned int bpp,unsigned int src_x,unsigned int src_y,unsigned int dst_x,unsigned int dst_y,unsigned int width,unsigned int height)461 void video_hw_bitblt (unsigned int bpp, unsigned int src_x,
462 unsigned int src_y, unsigned int dst_x,
463 unsigned int dst_y, unsigned int width,
464 unsigned int height)
465 {
466 GraphicDevice *dev = &mb862xx;
467 unsigned int ctrl = 0x0d000000L;
468
469 if (src_x >= dst_x && src_y >= dst_y)
470 ctrl |= 0x00440000L;
471 else if (src_x >= dst_x && src_y <= dst_y)
472 ctrl |= 0x00460000L;
473 else if (src_x <= dst_x && src_y >= dst_y)
474 ctrl |= 0x00450000L;
475 else
476 ctrl |= 0x00470000L;
477
478 de_wait_slots (4);
479 DE_WR_FIFO (ctrl);
480 DE_WR_FIFO ((src_y << 16) | src_x);
481 DE_WR_FIFO ((dst_y << 16) | dst_x);
482 DE_WR_FIFO ((height << 16) | width);
483 de_wait (); /* sync */
484 }
485 #endif
486