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1/*
2 * (C) Copyright 2007
3 * DENX Software Engineering, Anatolij Gustschin, agust@denx.de
4 *
1a459660 5 * SPDX-License-Identifier: GPL-2.0+
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6 */
7
8/*
9 * mb862xx.c - Graphic interface for Fujitsu CoralP/Lime
10 * PCI and video mode code was derived from smiLynxEM driver.
11 */
12
13#include <common.h>
14
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15#include <asm/io.h>
16#include <pci.h>
17#include <video_fb.h>
18#include "videomodes.h"
19#include <mb862xx.h>
20
0d48926c
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21#if defined(CONFIG_POST)
22#include <post.h>
23#endif
e8652867 24
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25/*
26 * Graphic Device
27 */
28GraphicDevice 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
38static 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 */
45unsigned 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
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53#define rd_io(addr) in_be32((volatile unsigned *)(addr))
54#define wr_io(addr, val) out_be32((volatile unsigned *)(addr), (val))
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55#endif
56
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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)), \
e8652867 59 (val))
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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)), \
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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))
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65
66#if defined(CONFIG_VIDEO_CORALP)
cce99b2a 67#define DE_WR_FIFO(val) wr_io((dev->dprBase + (GC_GEO_FIFO)), (val))
bed53753 68#else
cce99b2a 69#define DE_WR_FIFO(val) wr_io((dev->dprBase + (GC_FIFO)), (val))
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70#endif
71
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72#define L0PAL_WR_REG(idx, val) wr_io((dev->frameAdrs + \
73 (GC_DISP_BASE | GC_L0PAL0) + \
e8652867 74 ((idx) << 2)), (val))
bed53753 75
5d16ca87 76#if defined(CONFIG_VIDEO_MB862xx_ACCEL)
e8652867 77static void gdc_sw_reset (void)
bed53753 78{
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79 GraphicDevice *dev = &mb862xx;
80
cce99b2a 81 HOST_WR_REG (GC_SRST, 0x1);
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82 udelay (500);
83 video_hw_init ();
84}
85
86
e8652867 87static void de_wait (void)
bed53753 88{
e8652867 89 GraphicDevice *dev = &mb862xx;
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90 int lc = 0x10000;
91
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92 /*
93 * Sync with software writes to framebuffer,
94 * try to reset if engine locked
95 */
cce99b2a 96 while (DE_RD_REG (GC_CTR) & 0x00000131)
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97 if (lc-- < 0) {
98 gdc_sw_reset ();
9d173e02 99 puts ("gdc reset done after drawing engine lock.\n");
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100 break;
101 }
102}
103
e8652867 104static void de_wait_slots (int slots)
bed53753 105{
e8652867 106 GraphicDevice *dev = &mb862xx;
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107 int lc = 0x10000;
108
109 /* Wait for free fifo slots */
cce99b2a 110 while (DE_RD_REG (GC_IFCNT) < slots)
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111 if (lc-- < 0) {
112 gdc_sw_reset ();
9d173e02 113 puts ("gdc reset done after drawing engine lock.\n");
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114 break;
115 }
116}
5d16ca87 117#endif
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118
119#if !defined(CONFIG_VIDEO_CORALP)
e8652867 120static void board_disp_init (void)
bed53753 121{
e8652867 122 GraphicDevice *dev = &mb862xx;
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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/*
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133 * Init drawing engine if accel enabled.
134 * Also clears visible framebuffer.
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135 */
136static void de_init (void)
137{
e8652867 138 GraphicDevice *dev = &mb862xx;
5d16ca87 139#if defined(CONFIG_VIDEO_MB862xx_ACCEL)
e8652867 140 int cf = (dev->gdfBytesPP == 1) ? 0x0000 : 0x8000;
bed53753 141
cce99b2a 142 dev->dprBase = dev->frameAdrs + GC_DRAW_BASE;
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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);
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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);
bed53753 152 /* Reset clipping */
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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);
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157
158 /* Clear framebuffer using drawing engine */
159 de_wait_slots (3);
160 DE_WR_FIFO (0x09410000);
161 DE_WR_FIFO (0x00000000);
e8652867 162 DE_WR_FIFO (dev->winSizeY << 16 | dev->winSizeX);
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163 /* sync with SW access to framebuffer */
164 de_wait ();
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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
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173}
174
175#if defined(CONFIG_VIDEO_CORALP)
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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
e8652867 184unsigned int pci_video_init (void)
bed53753 185{
e8652867 186 GraphicDevice *dev = &mb862xx;
bed53753 187 pci_dev_t devbusfn;
d7ffd27a 188 u16 device;
bed53753 189
e8652867 190 if ((devbusfn = pci_find_devices (supported, 0)) < 0) {
01b0f500 191 puts("controller not present\n");
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192 return 0;
193 }
194
195 /* PCI setup */
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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);
bed53753 200
e8652867 201 if (dev->frameAdrs == 0) {
9d173e02 202 puts ("PCI config: failed to get base address\n");
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203 return 0;
204 }
205
e8652867 206 dev->pciBase = dev->frameAdrs;
bed53753 207
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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);
bed53753 225 udelay (200);
d7ffd27a 226 HOST_WR_REG(GC_MMR, CONFIG_SYS_MB862xx_MMR);
bed53753 227 udelay (100);
e8652867 228 return dev->frameAdrs;
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229}
230
231unsigned int card_init (void)
232{
e8652867 233 GraphicDevice *dev = &mb862xx;
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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
e8652867 241 memset (dev, 0, sizeof (GraphicDevice));
bed53753 242
e8652867 243 if (!pci_video_init ())
bed53753 244 return 0;
bed53753 245
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246 tmp = 0;
247 videomode = 0x310;
248 /* get video mode via environment */
249 if ((penv = getenv ("videomode")) != NULL) {
e8652867 250 /* decide if it is a string */
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251 if (penv[0] <= '9') {
252 videomode = (int) simple_strtoul (penv, NULL, 16);
253 tmp = 1;
254 }
255 } else {
256 tmp = 1;
257 }
e8652867 258
bed53753 259 if (tmp) {
e8652867 260 /* parameter are vesa modes, search params */
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261 for (i = 0; i < VESA_MODES_COUNT; i++) {
262 if (vesa_modes[i].vesanr == videomode)
263 break;
264 }
265 if (i == VESA_MODES_COUNT) {
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266 printf ("\tno VESA Mode found, fallback to mode 0x%x\n",
267 videomode);
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268 i = 0;
269 }
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270 res_mode = (struct ctfb_res_modes *)
271 &res_mode_init[vesa_modes[i].resindex];
bed53753 272 if (vesa_modes[i].resindex > 2) {
9d173e02 273 puts ("\tUnsupported resolution, using default\n");
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274 bpp = vesa_modes[1].bits_per_pixel;
275 div = fr_div[1];
276 }
277 bpp = vesa_modes[i].bits_per_pixel;
278 div = fr_div[vesa_modes[i].resindex];
279 } else {
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280 res_mode = (struct ctfb_res_modes *) &var_mode;
281 bpp = video_get_params (res_mode, penv);
282 }
283
284 /* calculate hsync and vsync freq (info only) */
285 t1 = (res_mode->left_margin + res_mode->xres +
286 res_mode->right_margin + res_mode->hsync_len) / 8;
287 t1 *= 8;
288 t1 *= res_mode->pixclock;
289 t1 /= 1000;
290 hsync = 1000000000L / t1;
291 t1 *= (res_mode->upper_margin + res_mode->yres +
292 res_mode->lower_margin + res_mode->vsync_len);
293 t1 /= 1000;
294 vsync = 1000000000L / t1;
295
296 /* fill in Graphic device struct */
e8652867 297 sprintf (dev->modeIdent, "%dx%dx%d %ldkHz %ldHz", res_mode->xres,
bed53753 298 res_mode->yres, bpp, (hsync / 1000), (vsync / 1000));
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299 printf ("\t%s\n", dev->modeIdent);
300 dev->winSizeX = res_mode->xres;
301 dev->winSizeY = res_mode->yres;
302 dev->memSize = VIDEO_MEM_SIZE;
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303
304 switch (bpp) {
305 case 8:
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306 dev->gdfIndex = GDF__8BIT_INDEX;
307 dev->gdfBytesPP = 1;
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308 break;
309 case 15:
310 case 16:
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311 dev->gdfIndex = GDF_15BIT_555RGB;
312 dev->gdfBytesPP = 2;
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313 break;
314 default:
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315 printf ("\t%d bpp configured, but only 8,15 and 16 supported\n",
316 bpp);
9d173e02 317 puts ("\tfallback to 15bpp\n");
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318 dev->gdfIndex = GDF_15BIT_555RGB;
319 dev->gdfBytesPP = 2;
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320 }
321
322 /* Setup dot clock (internal pll, division rate) */
cce99b2a 323 DISP_WR_REG (GC_DCM1, div);
bed53753 324 /* L0 init */
e8652867 325 cf = (dev->gdfBytesPP == 1) ? 0x00000000 : 0x80000000;
cce99b2a 326 DISP_WR_REG (GC_L0M, ((dev->winSizeX * dev->gdfBytesPP) / 64) << 16 |
e8652867 327 (dev->winSizeY - 1) | cf);
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328 DISP_WR_REG (GC_L0OA0, 0x0);
329 DISP_WR_REG (GC_L0DA0, 0x0);
330 DISP_WR_REG (GC_L0DY_L0DX, 0x0);
331 DISP_WR_REG (GC_L0EM, 0x0);
332 DISP_WR_REG (GC_L0WY_L0WX, 0x0);
333 DISP_WR_REG (GC_L0WH_L0WW, (dev->winSizeY - 1) << 16 | dev->winSizeX);
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334
335 /* Display timing init */
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336 DISP_WR_REG (GC_HTP_A, (dev->winSizeX +
337 res_mode->left_margin +
338 res_mode->right_margin +
339 res_mode->hsync_len - 1) << 16);
340 DISP_WR_REG (GC_HDB_HDP_A, (dev->winSizeX - 1) << 16 |
341 (dev->winSizeX - 1));
342 DISP_WR_REG (GC_VSW_HSW_HSP_A, (res_mode->vsync_len - 1) << 24 |
343 (res_mode->hsync_len - 1) << 16 |
344 (dev->winSizeX +
345 res_mode->right_margin - 1));
346 DISP_WR_REG (GC_VTR_A, (dev->winSizeY + res_mode->lower_margin +
347 res_mode->upper_margin +
348 res_mode->vsync_len - 1) << 16);
349 DISP_WR_REG (GC_VDP_VSP_A, (dev->winSizeY-1) << 16 |
350 (dev->winSizeY +
351 res_mode->lower_margin - 1));
352 DISP_WR_REG (GC_WY_WX, 0x0);
353 DISP_WR_REG (GC_WH_WW, dev->winSizeY << 16 | dev->winSizeX);
bed53753 354 /* Display enable, L0 layer */
cce99b2a 355 DISP_WR_REG (GC_DCM1, 0x80010000 | div);
bed53753 356
e8652867 357 return dev->frameAdrs;
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358}
359#endif
360
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361
362#if !defined(CONFIG_VIDEO_CORALP)
363int mb862xx_probe(unsigned int addr)
364{
365 GraphicDevice *dev = &mb862xx;
366 unsigned int reg;
367
368 dev->frameAdrs = addr;
369 dev->dprBase = dev->frameAdrs + GC_DRAW_BASE;
370
371 /* Try to access GDC ID/Revision registers */
372 reg = HOST_RD_REG (GC_CID);
373 reg = HOST_RD_REG (GC_CID);
374 if (reg == 0x303) {
375 reg = DE_RD_REG(GC_REV);
376 reg = DE_RD_REG(GC_REV);
377 if ((reg & ~0xff) == 0x20050100)
378 return MB862XX_TYPE_LIME;
379 }
380
381 return 0;
382}
383#endif
384
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385void *video_hw_init (void)
386{
e8652867 387 GraphicDevice *dev = &mb862xx;
bed53753 388
9d173e02 389 puts ("Video: Fujitsu ");
bed53753 390
e8652867 391 memset (dev, 0, sizeof (GraphicDevice));
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392
393#if defined(CONFIG_VIDEO_CORALP)
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394 if (card_init () == 0)
395 return NULL;
bed53753 396#else
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397 /*
398 * Preliminary init of the onboard graphic controller,
399 * retrieve base address
400 */
401 if ((dev->frameAdrs = board_video_init ()) == 0) {
9d173e02 402 puts ("Controller not found!\n");
e8652867 403 return NULL;
c28d3bbe 404 } else {
9d173e02 405 puts ("Lime\n");
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406
407 /* Set Change of Clock Frequency Register */
408 HOST_WR_REG (GC_CCF, CONFIG_SYS_MB862xx_CCF);
409 /* Delay required */
410 udelay(300);
411 /* Set Memory I/F Mode Register) */
412 HOST_WR_REG (GC_MMR, CONFIG_SYS_MB862xx_MMR);
413 }
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414#endif
415
416 de_init ();
417
418#if !defined(CONFIG_VIDEO_CORALP)
e8652867 419 board_disp_init ();
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420#endif
421
e64987a8 422#if (defined(CONFIG_LWMON5) || \
6d0f6bcf 423 defined(CONFIG_SOCRATES)) && !(CONFIG_POST & CONFIG_SYS_POST_SYSMON)
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424 /* Lamp on */
425 board_backlight_switch (1);
426#endif
427
e8652867 428 return dev;
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429}
430
431/*
432 * Set a RGB color in the LUT
433 */
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434void video_set_lut (unsigned int index, unsigned char r,
435 unsigned char g, unsigned char b)
bed53753 436{
e8652867 437 GraphicDevice *dev = &mb862xx;
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438
439 L0PAL_WR_REG (index, (r << 16) | (g << 8) | (b));
440}
441
5d16ca87 442#if defined(CONFIG_VIDEO_MB862xx_ACCEL)
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443/*
444 * Drawing engine Fill and BitBlt screen region
445 */
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446void video_hw_rectfill (unsigned int bpp, unsigned int dst_x,
447 unsigned int dst_y, unsigned int dim_x,
448 unsigned int dim_y, unsigned int color)
bed53753 449{
e8652867 450 GraphicDevice *dev = &mb862xx;
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451
452 de_wait_slots (3);
cce99b2a 453 DE_WR_REG (GC_FC, color);
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454 DE_WR_FIFO (0x09410000);
455 DE_WR_FIFO ((dst_y << 16) | dst_x);
456 DE_WR_FIFO ((dim_y << 16) | dim_x);
457 de_wait ();
458}
459
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460void video_hw_bitblt (unsigned int bpp, unsigned int src_x,
461 unsigned int src_y, unsigned int dst_x,
462 unsigned int dst_y, unsigned int width,
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463 unsigned int height)
464{
e8652867 465 GraphicDevice *dev = &mb862xx;
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466 unsigned int ctrl = 0x0d000000L;
467
468 if (src_x >= dst_x && src_y >= dst_y)
469 ctrl |= 0x00440000L;
470 else if (src_x >= dst_x && src_y <= dst_y)
471 ctrl |= 0x00460000L;
472 else if (src_x <= dst_x && src_y >= dst_y)
473 ctrl |= 0x00450000L;
474 else
475 ctrl |= 0x00470000L;
476
477 de_wait_slots (4);
478 DE_WR_FIFO (ctrl);
479 DE_WR_FIFO ((src_y << 16) | src_x);
480 DE_WR_FIFO ((dst_y << 16) | dst_x);
481 DE_WR_FIFO ((height << 16) | width);
482 de_wait (); /* sync */
483}
5d16ca87 484#endif