1 /*
2  * drivers/mb862xx/mb862xxfb.c
3  *
4  * Fujitsu Carmine/Coral-P(A)/Lime framebuffer driver
5  *
6  * (C) 2008 Anatolij Gustschin <agust@denx.de>
7  * DENX Software Engineering
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License version 2 as
11  * published by the Free Software Foundation.
12  *
13  */
14 
15 #undef DEBUG
16 
17 #include <linux/fb.h>
18 #include <linux/delay.h>
19 #include <linux/uaccess.h>
20 #include <linux/module.h>
21 #include <linux/init.h>
22 #include <linux/interrupt.h>
23 #include <linux/pci.h>
24 #if defined(CONFIG_OF)
25 #include <linux/of_platform.h>
26 #endif
27 #include "mb862xxfb.h"
28 #include "mb862xx_reg.h"
29 
30 #define NR_PALETTE		256
31 #define MB862XX_MEM_SIZE	0x1000000
32 #define CORALP_MEM_SIZE		0x2000000
33 #define CARMINE_MEM_SIZE	0x8000000
34 #define DRV_NAME		"mb862xxfb"
35 
36 #if defined(CONFIG_SOCRATES)
37 static struct mb862xx_gc_mode socrates_gc_mode = {
38 	/* Mode for Prime View PM070WL4 TFT LCD Panel */
39 	{ "800x480", 45, 800, 480, 40000, 86, 42, 33, 10, 128, 2, 0, 0, 0 },
40 	/* 16 bits/pixel, 16MB, 133MHz, SDRAM memory mode value */
41 	16, 0x1000000, GC_CCF_COT_133, 0x4157ba63
42 };
43 #endif
44 
45 /* Helpers */
46 static inline int h_total(struct fb_var_screeninfo *var)
47 {
48 	return var->xres + var->left_margin +
49 		var->right_margin + var->hsync_len;
50 }
51 
52 static inline int v_total(struct fb_var_screeninfo *var)
53 {
54 	return var->yres + var->upper_margin +
55 		var->lower_margin + var->vsync_len;
56 }
57 
58 static inline int hsp(struct fb_var_screeninfo *var)
59 {
60 	return var->xres + var->right_margin - 1;
61 }
62 
63 static inline int vsp(struct fb_var_screeninfo *var)
64 {
65 	return var->yres + var->lower_margin - 1;
66 }
67 
68 static inline int d_pitch(struct fb_var_screeninfo *var)
69 {
70 	return var->xres * var->bits_per_pixel / 8;
71 }
72 
73 static inline unsigned int chan_to_field(unsigned int chan,
74 					 struct fb_bitfield *bf)
75 {
76 	chan &= 0xffff;
77 	chan >>= 16 - bf->length;
78 	return chan << bf->offset;
79 }
80 
81 static int mb862xxfb_setcolreg(unsigned regno,
82 			       unsigned red, unsigned green, unsigned blue,
83 			       unsigned transp, struct fb_info *info)
84 {
85 	struct mb862xxfb_par *par = info->par;
86 	unsigned int val;
87 
88 	switch (info->fix.visual) {
89 	case FB_VISUAL_TRUECOLOR:
90 		if (regno < 16) {
91 			val  = chan_to_field(red,   &info->var.red);
92 			val |= chan_to_field(green, &info->var.green);
93 			val |= chan_to_field(blue,  &info->var.blue);
94 			par->pseudo_palette[regno] = val;
95 		}
96 		break;
97 	case FB_VISUAL_PSEUDOCOLOR:
98 		if (regno < 256) {
99 			val = (red >> 8) << 16;
100 			val |= (green >> 8) << 8;
101 			val |= blue >> 8;
102 			outreg(disp, GC_L0PAL0 + (regno * 4), val);
103 		}
104 		break;
105 	default:
106 		return 1;   /* unsupported type */
107 	}
108 	return 0;
109 }
110 
111 static int mb862xxfb_check_var(struct fb_var_screeninfo *var,
112 			       struct fb_info *fbi)
113 {
114 	unsigned long tmp;
115 
116 	if (fbi->dev)
117 		dev_dbg(fbi->dev, "%s\n", __func__);
118 
119 	/* check if these values fit into the registers */
120 	if (var->hsync_len > 255 || var->vsync_len > 255)
121 		return -EINVAL;
122 
123 	if ((var->xres + var->right_margin) >= 4096)
124 		return -EINVAL;
125 
126 	if ((var->yres + var->lower_margin) > 4096)
127 		return -EINVAL;
128 
129 	if (h_total(var) > 4096 || v_total(var) > 4096)
130 		return -EINVAL;
131 
132 	if (var->xres_virtual > 4096 || var->yres_virtual > 4096)
133 		return -EINVAL;
134 
135 	if (var->bits_per_pixel <= 8)
136 		var->bits_per_pixel = 8;
137 	else if (var->bits_per_pixel <= 16)
138 		var->bits_per_pixel = 16;
139 	else if (var->bits_per_pixel <= 32)
140 		var->bits_per_pixel = 32;
141 
142 	/*
143 	 * can cope with 8,16 or 24/32bpp if resulting
144 	 * pitch is divisible by 64 without remainder
145 	 */
146 	if (d_pitch(&fbi->var) % GC_L0M_L0W_UNIT) {
147 		int r;
148 
149 		var->bits_per_pixel = 0;
150 		do {
151 			var->bits_per_pixel += 8;
152 			r = d_pitch(&fbi->var) % GC_L0M_L0W_UNIT;
153 		} while (r && var->bits_per_pixel <= 32);
154 
155 		if (d_pitch(&fbi->var) % GC_L0M_L0W_UNIT)
156 			return -EINVAL;
157 	}
158 
159 	/* line length is going to be 128 bit aligned */
160 	tmp = (var->xres * var->bits_per_pixel) / 8;
161 	if ((tmp & 15) != 0)
162 		return -EINVAL;
163 
164 	/* set r/g/b positions and validate bpp */
165 	switch (var->bits_per_pixel) {
166 	case 8:
167 		var->red.length		= var->bits_per_pixel;
168 		var->green.length	= var->bits_per_pixel;
169 		var->blue.length	= var->bits_per_pixel;
170 		var->red.offset		= 0;
171 		var->green.offset	= 0;
172 		var->blue.offset	= 0;
173 		var->transp.length	= 0;
174 		break;
175 	case 16:
176 		var->red.length		= 5;
177 		var->green.length	= 5;
178 		var->blue.length	= 5;
179 		var->red.offset		= 10;
180 		var->green.offset	= 5;
181 		var->blue.offset	= 0;
182 		var->transp.length	= 0;
183 		break;
184 	case 24:
185 	case 32:
186 		var->transp.length	= 8;
187 		var->red.length		= 8;
188 		var->green.length	= 8;
189 		var->blue.length	= 8;
190 		var->transp.offset	= 24;
191 		var->red.offset		= 16;
192 		var->green.offset	= 8;
193 		var->blue.offset	= 0;
194 		break;
195 	default:
196 		return -EINVAL;
197 	}
198 	return 0;
199 }
200 
201 /*
202  * set display parameters
203  */
204 static int mb862xxfb_set_par(struct fb_info *fbi)
205 {
206 	struct mb862xxfb_par *par = fbi->par;
207 	unsigned long reg, sc;
208 
209 	dev_dbg(par->dev, "%s\n", __func__);
210 	if (par->type == BT_CORALP)
211 		mb862xxfb_init_accel(fbi, fbi->var.xres);
212 
213 	if (par->pre_init)
214 		return 0;
215 
216 	/* disp off */
217 	reg = inreg(disp, GC_DCM1);
218 	reg &= ~GC_DCM01_DEN;
219 	outreg(disp, GC_DCM1, reg);
220 
221 	/* set display reference clock div. */
222 	sc = par->refclk / (1000000 / fbi->var.pixclock) - 1;
223 	reg = inreg(disp, GC_DCM1);
224 	reg &= ~(GC_DCM01_CKS | GC_DCM01_RESV | GC_DCM01_SC);
225 	reg |= sc << 8;
226 	outreg(disp, GC_DCM1, reg);
227 	dev_dbg(par->dev, "SC 0x%lx\n", sc);
228 
229 	/* disp dimension, format */
230 	reg =  pack(d_pitch(&fbi->var) / GC_L0M_L0W_UNIT,
231 		    (fbi->var.yres - 1));
232 	if (fbi->var.bits_per_pixel == 16)
233 		reg |= GC_L0M_L0C_16;
234 	outreg(disp, GC_L0M, reg);
235 
236 	if (fbi->var.bits_per_pixel == 32) {
237 		reg = inreg(disp, GC_L0EM);
238 		outreg(disp, GC_L0EM, reg | GC_L0EM_L0EC_24);
239 	}
240 	outreg(disp, GC_WY_WX, 0);
241 	reg = pack(fbi->var.yres - 1, fbi->var.xres);
242 	outreg(disp, GC_WH_WW, reg);
243 	outreg(disp, GC_L0OA0, 0);
244 	outreg(disp, GC_L0DA0, 0);
245 	outreg(disp, GC_L0DY_L0DX, 0);
246 	outreg(disp, GC_L0WY_L0WX, 0);
247 	outreg(disp, GC_L0WH_L0WW, reg);
248 
249 	/* both HW-cursors off */
250 	reg = inreg(disp, GC_CPM_CUTC);
251 	reg &= ~(GC_CPM_CEN0 | GC_CPM_CEN1);
252 	outreg(disp, GC_CPM_CUTC, reg);
253 
254 	/* timings */
255 	reg = pack(fbi->var.xres - 1, fbi->var.xres - 1);
256 	outreg(disp, GC_HDB_HDP, reg);
257 	reg = pack((fbi->var.yres - 1), vsp(&fbi->var));
258 	outreg(disp, GC_VDP_VSP, reg);
259 	reg = ((fbi->var.vsync_len - 1) << 24) |
260 	      pack((fbi->var.hsync_len - 1), hsp(&fbi->var));
261 	outreg(disp, GC_VSW_HSW_HSP, reg);
262 	outreg(disp, GC_HTP, pack(h_total(&fbi->var) - 1, 0));
263 	outreg(disp, GC_VTR, pack(v_total(&fbi->var) - 1, 0));
264 
265 	/* display on */
266 	reg = inreg(disp, GC_DCM1);
267 	reg |= GC_DCM01_DEN | GC_DCM01_L0E;
268 	reg &= ~GC_DCM01_ESY;
269 	outreg(disp, GC_DCM1, reg);
270 	return 0;
271 }
272 
273 static int mb862xxfb_pan(struct fb_var_screeninfo *var,
274 			 struct fb_info *info)
275 {
276 	struct mb862xxfb_par *par = info->par;
277 	unsigned long reg;
278 
279 	reg = pack(var->yoffset, var->xoffset);
280 	outreg(disp, GC_L0WY_L0WX, reg);
281 
282 	reg = pack(info->var.yres_virtual, info->var.xres_virtual);
283 	outreg(disp, GC_L0WH_L0WW, reg);
284 	return 0;
285 }
286 
287 static int mb862xxfb_blank(int mode, struct fb_info *fbi)
288 {
289 	struct mb862xxfb_par  *par = fbi->par;
290 	unsigned long reg;
291 
292 	dev_dbg(fbi->dev, "blank mode=%d\n", mode);
293 
294 	switch (mode) {
295 	case FB_BLANK_POWERDOWN:
296 		reg = inreg(disp, GC_DCM1);
297 		reg &= ~GC_DCM01_DEN;
298 		outreg(disp, GC_DCM1, reg);
299 		break;
300 	case FB_BLANK_UNBLANK:
301 		reg = inreg(disp, GC_DCM1);
302 		reg |= GC_DCM01_DEN;
303 		outreg(disp, GC_DCM1, reg);
304 		break;
305 	case FB_BLANK_NORMAL:
306 	case FB_BLANK_VSYNC_SUSPEND:
307 	case FB_BLANK_HSYNC_SUSPEND:
308 	default:
309 		return 1;
310 	}
311 	return 0;
312 }
313 
314 static int mb862xxfb_ioctl(struct fb_info *fbi, unsigned int cmd,
315 			   unsigned long arg)
316 {
317 	struct mb862xxfb_par *par = fbi->par;
318 	struct mb862xx_l1_cfg *l1_cfg = &par->l1_cfg;
319 	void __user *argp = (void __user *)arg;
320 	int *enable;
321 	u32 l1em = 0;
322 
323 	switch (cmd) {
324 	case MB862XX_L1_GET_CFG:
325 		if (copy_to_user(argp, l1_cfg, sizeof(*l1_cfg)))
326 			return -EFAULT;
327 		break;
328 	case MB862XX_L1_SET_CFG:
329 		if (copy_from_user(l1_cfg, argp, sizeof(*l1_cfg)))
330 			return -EFAULT;
331 		if (l1_cfg->dh == 0 || l1_cfg->dw == 0)
332 			return -EINVAL;
333 		if ((l1_cfg->sw >= l1_cfg->dw) && (l1_cfg->sh >= l1_cfg->dh)) {
334 			/* downscaling */
335 			outreg(cap, GC_CAP_CSC,
336 				pack((l1_cfg->sh << 11) / l1_cfg->dh,
337 				     (l1_cfg->sw << 11) / l1_cfg->dw));
338 			l1em = inreg(disp, GC_L1EM);
339 			l1em &= ~GC_L1EM_DM;
340 		} else if ((l1_cfg->sw <= l1_cfg->dw) &&
341 			   (l1_cfg->sh <= l1_cfg->dh)) {
342 			/* upscaling */
343 			outreg(cap, GC_CAP_CSC,
344 				pack((l1_cfg->sh << 11) / l1_cfg->dh,
345 				     (l1_cfg->sw << 11) / l1_cfg->dw));
346 			outreg(cap, GC_CAP_CMSS,
347 				pack(l1_cfg->sw >> 1, l1_cfg->sh));
348 			outreg(cap, GC_CAP_CMDS,
349 				pack(l1_cfg->dw >> 1, l1_cfg->dh));
350 			l1em = inreg(disp, GC_L1EM);
351 			l1em |= GC_L1EM_DM;
352 		}
353 
354 		if (l1_cfg->mirror) {
355 			outreg(cap, GC_CAP_CBM,
356 				inreg(cap, GC_CAP_CBM) | GC_CBM_HRV);
357 			l1em |= l1_cfg->dw * 2 - 8;
358 		} else {
359 			outreg(cap, GC_CAP_CBM,
360 				inreg(cap, GC_CAP_CBM) & ~GC_CBM_HRV);
361 			l1em &= 0xffff0000;
362 		}
363 		outreg(disp, GC_L1EM, l1em);
364 		break;
365 	case MB862XX_L1_ENABLE:
366 		enable = (int *)arg;
367 		if (*enable) {
368 			outreg(disp, GC_L1DA, par->cap_buf);
369 			outreg(cap, GC_CAP_IMG_START,
370 				pack(l1_cfg->sy >> 1, l1_cfg->sx));
371 			outreg(cap, GC_CAP_IMG_END,
372 				pack(l1_cfg->sh, l1_cfg->sw));
373 			outreg(disp, GC_L1M, GC_L1M_16 | GC_L1M_YC | GC_L1M_CS |
374 					     (par->l1_stride << 16));
375 			outreg(disp, GC_L1WY_L1WX,
376 				pack(l1_cfg->dy, l1_cfg->dx));
377 			outreg(disp, GC_L1WH_L1WW,
378 				pack(l1_cfg->dh - 1, l1_cfg->dw));
379 			outreg(disp, GC_DLS, 1);
380 			outreg(cap, GC_CAP_VCM,
381 				GC_VCM_VIE | GC_VCM_CM | GC_VCM_VS_PAL);
382 			outreg(disp, GC_DCM1, inreg(disp, GC_DCM1) |
383 					      GC_DCM1_DEN | GC_DCM1_L1E);
384 		} else {
385 			outreg(cap, GC_CAP_VCM,
386 				inreg(cap, GC_CAP_VCM) & ~GC_VCM_VIE);
387 			outreg(disp, GC_DCM1,
388 				inreg(disp, GC_DCM1) & ~GC_DCM1_L1E);
389 		}
390 		break;
391 	case MB862XX_L1_CAP_CTL:
392 		enable = (int *)arg;
393 		if (*enable) {
394 			outreg(cap, GC_CAP_VCM,
395 				inreg(cap, GC_CAP_VCM) | GC_VCM_VIE);
396 		} else {
397 			outreg(cap, GC_CAP_VCM,
398 				inreg(cap, GC_CAP_VCM) & ~GC_VCM_VIE);
399 		}
400 		break;
401 	default:
402 		return -EINVAL;
403 	}
404 	return 0;
405 }
406 
407 /* framebuffer ops */
408 static struct fb_ops mb862xxfb_ops = {
409 	.owner		= THIS_MODULE,
410 	.fb_check_var	= mb862xxfb_check_var,
411 	.fb_set_par	= mb862xxfb_set_par,
412 	.fb_setcolreg	= mb862xxfb_setcolreg,
413 	.fb_blank	= mb862xxfb_blank,
414 	.fb_pan_display	= mb862xxfb_pan,
415 	.fb_fillrect	= cfb_fillrect,
416 	.fb_copyarea	= cfb_copyarea,
417 	.fb_imageblit	= cfb_imageblit,
418 	.fb_ioctl	= mb862xxfb_ioctl,
419 };
420 
421 /* initialize fb_info data */
422 static int mb862xxfb_init_fbinfo(struct fb_info *fbi)
423 {
424 	struct mb862xxfb_par *par = fbi->par;
425 	struct mb862xx_gc_mode *mode = par->gc_mode;
426 	unsigned long reg;
427 	int stride;
428 
429 	fbi->fbops = &mb862xxfb_ops;
430 	fbi->pseudo_palette = par->pseudo_palette;
431 	fbi->screen_base = par->fb_base;
432 	fbi->screen_size = par->mapped_vram;
433 
434 	strcpy(fbi->fix.id, DRV_NAME);
435 	fbi->fix.smem_start = (unsigned long)par->fb_base_phys;
436 	fbi->fix.mmio_start = (unsigned long)par->mmio_base_phys;
437 	fbi->fix.mmio_len = par->mmio_len;
438 	fbi->fix.accel = FB_ACCEL_NONE;
439 	fbi->fix.type = FB_TYPE_PACKED_PIXELS;
440 	fbi->fix.type_aux = 0;
441 	fbi->fix.xpanstep = 1;
442 	fbi->fix.ypanstep = 1;
443 	fbi->fix.ywrapstep = 0;
444 
445 	reg = inreg(disp, GC_DCM1);
446 	if (reg & GC_DCM01_DEN && reg & GC_DCM01_L0E) {
447 		/* get the disp mode from active display cfg */
448 		unsigned long sc = ((reg & GC_DCM01_SC) >> 8) + 1;
449 		unsigned long hsp, vsp, ht, vt;
450 
451 		dev_dbg(par->dev, "using bootloader's disp. mode\n");
452 		fbi->var.pixclock = (sc * 1000000) / par->refclk;
453 		fbi->var.xres = (inreg(disp, GC_HDB_HDP) & 0x0fff) + 1;
454 		reg = inreg(disp, GC_VDP_VSP);
455 		fbi->var.yres = ((reg >> 16) & 0x0fff) + 1;
456 		vsp = (reg & 0x0fff) + 1;
457 		fbi->var.xres_virtual = fbi->var.xres;
458 		fbi->var.yres_virtual = fbi->var.yres;
459 		reg = inreg(disp, GC_L0EM);
460 		if (reg & GC_L0EM_L0EC_24) {
461 			fbi->var.bits_per_pixel = 32;
462 		} else {
463 			reg = inreg(disp, GC_L0M);
464 			if (reg & GC_L0M_L0C_16)
465 				fbi->var.bits_per_pixel = 16;
466 			else
467 				fbi->var.bits_per_pixel = 8;
468 		}
469 		reg = inreg(disp, GC_VSW_HSW_HSP);
470 		fbi->var.hsync_len = ((reg & 0xff0000) >> 16) + 1;
471 		fbi->var.vsync_len = ((reg & 0x3f000000) >> 24) + 1;
472 		hsp = (reg & 0xffff) + 1;
473 		ht = ((inreg(disp, GC_HTP) & 0xfff0000) >> 16) + 1;
474 		fbi->var.right_margin = hsp - fbi->var.xres;
475 		fbi->var.left_margin = ht - hsp - fbi->var.hsync_len;
476 		vt = ((inreg(disp, GC_VTR) & 0xfff0000) >> 16) + 1;
477 		fbi->var.lower_margin = vsp - fbi->var.yres;
478 		fbi->var.upper_margin = vt - vsp - fbi->var.vsync_len;
479 	} else if (mode) {
480 		dev_dbg(par->dev, "using supplied mode\n");
481 		fb_videomode_to_var(&fbi->var, (struct fb_videomode *)mode);
482 		fbi->var.bits_per_pixel = mode->def_bpp ? mode->def_bpp : 8;
483 	} else {
484 		int ret;
485 
486 		ret = fb_find_mode(&fbi->var, fbi, "640x480-16@60",
487 				   NULL, 0, NULL, 16);
488 		if (ret == 0 || ret == 4) {
489 			dev_err(par->dev,
490 				"failed to get initial mode\n");
491 			return -EINVAL;
492 		}
493 	}
494 
495 	fbi->var.xoffset = 0;
496 	fbi->var.yoffset = 0;
497 	fbi->var.grayscale = 0;
498 	fbi->var.nonstd = 0;
499 	fbi->var.height = -1;
500 	fbi->var.width = -1;
501 	fbi->var.accel_flags = 0;
502 	fbi->var.vmode = FB_VMODE_NONINTERLACED;
503 	fbi->var.activate = FB_ACTIVATE_NOW;
504 	fbi->flags = FBINFO_DEFAULT |
505 #ifdef __BIG_ENDIAN
506 		     FBINFO_FOREIGN_ENDIAN |
507 #endif
508 		     FBINFO_HWACCEL_XPAN |
509 		     FBINFO_HWACCEL_YPAN;
510 
511 	/* check and possibly fix bpp */
512 	if ((fbi->fbops->fb_check_var)(&fbi->var, fbi))
513 		dev_err(par->dev, "check_var() failed on initial setup?\n");
514 
515 	fbi->fix.visual = fbi->var.bits_per_pixel == 8 ?
516 			 FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
517 	fbi->fix.line_length = (fbi->var.xres_virtual *
518 				fbi->var.bits_per_pixel) / 8;
519 	fbi->fix.smem_len = fbi->fix.line_length * fbi->var.yres_virtual;
520 
521 	/*
522 	 * reserve space for capture buffers and two cursors
523 	 * at the end of vram: 720x576 * 2 * 2.2 + 64x64 * 16.
524 	 */
525 	par->cap_buf = par->mapped_vram - 0x1bd800 - 0x10000;
526 	par->cap_len = 0x1bd800;
527 	par->l1_cfg.sx = 0;
528 	par->l1_cfg.sy = 0;
529 	par->l1_cfg.sw = 720;
530 	par->l1_cfg.sh = 576;
531 	par->l1_cfg.dx = 0;
532 	par->l1_cfg.dy = 0;
533 	par->l1_cfg.dw = 720;
534 	par->l1_cfg.dh = 576;
535 	stride = par->l1_cfg.sw * (fbi->var.bits_per_pixel / 8);
536 	par->l1_stride = stride / 64 + ((stride % 64) ? 1 : 0);
537 	outreg(cap, GC_CAP_CBM, GC_CBM_OO | GC_CBM_CBST |
538 				(par->l1_stride << 16));
539 	outreg(cap, GC_CAP_CBOA, par->cap_buf);
540 	outreg(cap, GC_CAP_CBLA, par->cap_buf + par->cap_len);
541 	return 0;
542 }
543 
544 /*
545  * show some display controller and cursor registers
546  */
547 static ssize_t mb862xxfb_show_dispregs(struct device *dev,
548 				       struct device_attribute *attr, char *buf)
549 {
550 	struct fb_info *fbi = dev_get_drvdata(dev);
551 	struct mb862xxfb_par *par = fbi->par;
552 	char *ptr = buf;
553 	unsigned int reg;
554 
555 	for (reg = GC_DCM0; reg <= GC_L0DY_L0DX; reg += 4)
556 		ptr += sprintf(ptr, "%08x = %08x\n",
557 			       reg, inreg(disp, reg));
558 
559 	for (reg = GC_CPM_CUTC; reg <= GC_CUY1_CUX1; reg += 4)
560 		ptr += sprintf(ptr, "%08x = %08x\n",
561 			       reg, inreg(disp, reg));
562 
563 	for (reg = GC_DCM1; reg <= GC_L0WH_L0WW; reg += 4)
564 		ptr += sprintf(ptr, "%08x = %08x\n",
565 			       reg, inreg(disp, reg));
566 
567 	for (reg = 0x400; reg <= 0x410; reg += 4)
568 		ptr += sprintf(ptr, "geo %08x = %08x\n",
569 			       reg, inreg(geo, reg));
570 
571 	for (reg = 0x400; reg <= 0x410; reg += 4)
572 		ptr += sprintf(ptr, "draw %08x = %08x\n",
573 			       reg, inreg(draw, reg));
574 
575 	for (reg = 0x440; reg <= 0x450; reg += 4)
576 		ptr += sprintf(ptr, "draw %08x = %08x\n",
577 			       reg, inreg(draw, reg));
578 
579 	return ptr - buf;
580 }
581 
582 static DEVICE_ATTR(dispregs, 0444, mb862xxfb_show_dispregs, NULL);
583 
584 static irqreturn_t mb862xx_intr(int irq, void *dev_id)
585 {
586 	struct mb862xxfb_par *par = (struct mb862xxfb_par *) dev_id;
587 	unsigned long reg_ist, mask;
588 
589 	if (!par)
590 		return IRQ_NONE;
591 
592 	if (par->type == BT_CARMINE) {
593 		/* Get Interrupt Status */
594 		reg_ist = inreg(ctrl, GC_CTRL_STATUS);
595 		mask = inreg(ctrl, GC_CTRL_INT_MASK);
596 		if (reg_ist == 0)
597 			return IRQ_HANDLED;
598 
599 		reg_ist &= mask;
600 		if (reg_ist == 0)
601 			return IRQ_HANDLED;
602 
603 		/* Clear interrupt status */
604 		outreg(ctrl, 0x0, reg_ist);
605 	} else {
606 		/* Get status */
607 		reg_ist = inreg(host, GC_IST);
608 		mask = inreg(host, GC_IMASK);
609 
610 		reg_ist &= mask;
611 		if (reg_ist == 0)
612 			return IRQ_HANDLED;
613 
614 		/* Clear status */
615 		outreg(host, GC_IST, ~reg_ist);
616 	}
617 	return IRQ_HANDLED;
618 }
619 
620 #if defined(CONFIG_FB_MB862XX_LIME)
621 /*
622  * GDC (Lime, Coral(B/Q), Mint, ...) on host bus
623  */
624 static int mb862xx_gdc_init(struct mb862xxfb_par *par)
625 {
626 	unsigned long ccf, mmr;
627 	unsigned long ver, rev;
628 
629 	if (!par)
630 		return -ENODEV;
631 
632 #if defined(CONFIG_FB_PRE_INIT_FB)
633 	par->pre_init = 1;
634 #endif
635 	par->host = par->mmio_base;
636 	par->i2c = par->mmio_base + MB862XX_I2C_BASE;
637 	par->disp = par->mmio_base + MB862XX_DISP_BASE;
638 	par->cap = par->mmio_base + MB862XX_CAP_BASE;
639 	par->draw = par->mmio_base + MB862XX_DRAW_BASE;
640 	par->geo = par->mmio_base + MB862XX_GEO_BASE;
641 	par->pio = par->mmio_base + MB862XX_PIO_BASE;
642 
643 	par->refclk = GC_DISP_REFCLK_400;
644 
645 	ver = inreg(host, GC_CID);
646 	rev = inreg(pio, GC_REVISION);
647 	if ((ver == 0x303) && (rev & 0xffffff00) == 0x20050100) {
648 		dev_info(par->dev, "Fujitsu Lime v1.%d found\n",
649 			 (int)rev & 0xff);
650 		par->type = BT_LIME;
651 		ccf = par->gc_mode ? par->gc_mode->ccf : GC_CCF_COT_100;
652 		mmr = par->gc_mode ? par->gc_mode->mmr : 0x414fb7f2;
653 	} else {
654 		dev_info(par->dev, "? GDC, CID/Rev.: 0x%lx/0x%lx \n", ver, rev);
655 		return -ENODEV;
656 	}
657 
658 	if (!par->pre_init) {
659 		outreg(host, GC_CCF, ccf);
660 		udelay(200);
661 		outreg(host, GC_MMR, mmr);
662 		udelay(10);
663 	}
664 
665 	/* interrupt status */
666 	outreg(host, GC_IST, 0);
667 	outreg(host, GC_IMASK, GC_INT_EN);
668 	return 0;
669 }
670 
671 static int of_platform_mb862xx_probe(struct platform_device *ofdev)
672 {
673 	struct device_node *np = ofdev->dev.of_node;
674 	struct device *dev = &ofdev->dev;
675 	struct mb862xxfb_par *par;
676 	struct fb_info *info;
677 	struct resource res;
678 	resource_size_t res_size;
679 	unsigned long ret = -ENODEV;
680 
681 	if (of_address_to_resource(np, 0, &res)) {
682 		dev_err(dev, "Invalid address\n");
683 		return -ENXIO;
684 	}
685 
686 	info = framebuffer_alloc(sizeof(struct mb862xxfb_par), dev);
687 	if (info == NULL) {
688 		dev_err(dev, "cannot allocate framebuffer\n");
689 		return -ENOMEM;
690 	}
691 
692 	par = info->par;
693 	par->info = info;
694 	par->dev = dev;
695 
696 	par->irq = irq_of_parse_and_map(np, 0);
697 	if (par->irq == NO_IRQ) {
698 		dev_err(dev, "failed to map irq\n");
699 		ret = -ENODEV;
700 		goto fbrel;
701 	}
702 
703 	res_size = resource_size(&res);
704 	par->res = request_mem_region(res.start, res_size, DRV_NAME);
705 	if (par->res == NULL) {
706 		dev_err(dev, "Cannot claim framebuffer/mmio\n");
707 		ret = -ENXIO;
708 		goto irqdisp;
709 	}
710 
711 #if defined(CONFIG_SOCRATES)
712 	par->gc_mode = &socrates_gc_mode;
713 #endif
714 
715 	par->fb_base_phys = res.start;
716 	par->mmio_base_phys = res.start + MB862XX_MMIO_BASE;
717 	par->mmio_len = MB862XX_MMIO_SIZE;
718 	if (par->gc_mode)
719 		par->mapped_vram = par->gc_mode->max_vram;
720 	else
721 		par->mapped_vram = MB862XX_MEM_SIZE;
722 
723 	par->fb_base = ioremap(par->fb_base_phys, par->mapped_vram);
724 	if (par->fb_base == NULL) {
725 		dev_err(dev, "Cannot map framebuffer\n");
726 		goto rel_reg;
727 	}
728 
729 	par->mmio_base = ioremap(par->mmio_base_phys, par->mmio_len);
730 	if (par->mmio_base == NULL) {
731 		dev_err(dev, "Cannot map registers\n");
732 		goto fb_unmap;
733 	}
734 
735 	dev_dbg(dev, "fb phys 0x%llx 0x%lx\n",
736 		(u64)par->fb_base_phys, (ulong)par->mapped_vram);
737 	dev_dbg(dev, "mmio phys 0x%llx 0x%lx, (irq = %d)\n",
738 		(u64)par->mmio_base_phys, (ulong)par->mmio_len, par->irq);
739 
740 	if (mb862xx_gdc_init(par))
741 		goto io_unmap;
742 
743 	if (request_irq(par->irq, mb862xx_intr, 0,
744 			DRV_NAME, (void *)par)) {
745 		dev_err(dev, "Cannot request irq\n");
746 		goto io_unmap;
747 	}
748 
749 	mb862xxfb_init_fbinfo(info);
750 
751 	if (fb_alloc_cmap(&info->cmap, NR_PALETTE, 0) < 0) {
752 		dev_err(dev, "Could not allocate cmap for fb_info.\n");
753 		goto free_irq;
754 	}
755 
756 	if ((info->fbops->fb_set_par)(info))
757 		dev_err(dev, "set_var() failed on initial setup?\n");
758 
759 	if (register_framebuffer(info)) {
760 		dev_err(dev, "failed to register framebuffer\n");
761 		goto rel_cmap;
762 	}
763 
764 	dev_set_drvdata(dev, info);
765 
766 	if (device_create_file(dev, &dev_attr_dispregs))
767 		dev_err(dev, "Can't create sysfs regdump file\n");
768 	return 0;
769 
770 rel_cmap:
771 	fb_dealloc_cmap(&info->cmap);
772 free_irq:
773 	outreg(host, GC_IMASK, 0);
774 	free_irq(par->irq, (void *)par);
775 io_unmap:
776 	iounmap(par->mmio_base);
777 fb_unmap:
778 	iounmap(par->fb_base);
779 rel_reg:
780 	release_mem_region(res.start, res_size);
781 irqdisp:
782 	irq_dispose_mapping(par->irq);
783 fbrel:
784 	framebuffer_release(info);
785 	return ret;
786 }
787 
788 static int of_platform_mb862xx_remove(struct platform_device *ofdev)
789 {
790 	struct fb_info *fbi = dev_get_drvdata(&ofdev->dev);
791 	struct mb862xxfb_par *par = fbi->par;
792 	resource_size_t res_size = resource_size(par->res);
793 	unsigned long reg;
794 
795 	dev_dbg(fbi->dev, "%s release\n", fbi->fix.id);
796 
797 	/* display off */
798 	reg = inreg(disp, GC_DCM1);
799 	reg &= ~(GC_DCM01_DEN | GC_DCM01_L0E);
800 	outreg(disp, GC_DCM1, reg);
801 
802 	/* disable interrupts */
803 	outreg(host, GC_IMASK, 0);
804 
805 	free_irq(par->irq, (void *)par);
806 	irq_dispose_mapping(par->irq);
807 
808 	device_remove_file(&ofdev->dev, &dev_attr_dispregs);
809 
810 	unregister_framebuffer(fbi);
811 	fb_dealloc_cmap(&fbi->cmap);
812 
813 	iounmap(par->mmio_base);
814 	iounmap(par->fb_base);
815 
816 	release_mem_region(par->res->start, res_size);
817 	framebuffer_release(fbi);
818 	return 0;
819 }
820 
821 /*
822  * common types
823  */
824 static struct of_device_id of_platform_mb862xx_tbl[] = {
825 	{ .compatible = "fujitsu,MB86276", },
826 	{ .compatible = "fujitsu,lime", },
827 	{ .compatible = "fujitsu,MB86277", },
828 	{ .compatible = "fujitsu,mint", },
829 	{ .compatible = "fujitsu,MB86293", },
830 	{ .compatible = "fujitsu,MB86294", },
831 	{ .compatible = "fujitsu,coral", },
832 	{ /* end */ }
833 };
834 MODULE_DEVICE_TABLE(of, of_platform_mb862xx_tbl);
835 
836 static struct platform_driver of_platform_mb862xxfb_driver = {
837 	.driver = {
838 		.name = DRV_NAME,
839 		.of_match_table = of_platform_mb862xx_tbl,
840 	},
841 	.probe		= of_platform_mb862xx_probe,
842 	.remove		= of_platform_mb862xx_remove,
843 };
844 #endif
845 
846 #if defined(CONFIG_FB_MB862XX_PCI_GDC)
847 static int coralp_init(struct mb862xxfb_par *par)
848 {
849 	int cn, ver;
850 
851 	par->host = par->mmio_base;
852 	par->i2c = par->mmio_base + MB862XX_I2C_BASE;
853 	par->disp = par->mmio_base + MB862XX_DISP_BASE;
854 	par->cap = par->mmio_base + MB862XX_CAP_BASE;
855 	par->draw = par->mmio_base + MB862XX_DRAW_BASE;
856 	par->geo = par->mmio_base + MB862XX_GEO_BASE;
857 	par->pio = par->mmio_base + MB862XX_PIO_BASE;
858 
859 	par->refclk = GC_DISP_REFCLK_400;
860 
861 	if (par->mapped_vram >= 0x2000000) {
862 		/* relocate gdc registers space */
863 		writel(1, par->fb_base + MB862XX_MMIO_BASE + GC_RSW);
864 		udelay(1); /* wait at least 20 bus cycles */
865 	}
866 
867 	ver = inreg(host, GC_CID);
868 	cn = (ver & GC_CID_CNAME_MSK) >> 8;
869 	ver = ver & GC_CID_VERSION_MSK;
870 	if (cn == 3) {
871 		unsigned long reg;
872 
873 		dev_info(par->dev, "Fujitsu Coral-%s GDC Rev.%d found\n",\
874 			 (ver == 6) ? "P" : (ver == 8) ? "PA" : "?",
875 			 par->pdev->revision);
876 		reg = inreg(disp, GC_DCM1);
877 		if (reg & GC_DCM01_DEN && reg & GC_DCM01_L0E)
878 			par->pre_init = 1;
879 
880 		if (!par->pre_init) {
881 			outreg(host, GC_CCF, GC_CCF_CGE_166 | GC_CCF_COT_133);
882 			udelay(200);
883 			outreg(host, GC_MMR, GC_MMR_CORALP_EVB_VAL);
884 			udelay(10);
885 		}
886 		/* Clear interrupt status */
887 		outreg(host, GC_IST, 0);
888 	} else {
889 		return -ENODEV;
890 	}
891 
892 	mb862xx_i2c_init(par);
893 	return 0;
894 }
895 
896 static int init_dram_ctrl(struct mb862xxfb_par *par)
897 {
898 	unsigned long i = 0;
899 
900 	/*
901 	 * Set io mode first! Spec. says IC may be destroyed
902 	 * if not set to SSTL2/LVCMOS before init.
903 	 */
904 	outreg(dram_ctrl, GC_DCTL_IOCONT1_IOCONT0, GC_EVB_DCTL_IOCONT1_IOCONT0);
905 
906 	/* DRAM init */
907 	outreg(dram_ctrl, GC_DCTL_MODE_ADD, GC_EVB_DCTL_MODE_ADD);
908 	outreg(dram_ctrl, GC_DCTL_SETTIME1_EMODE, GC_EVB_DCTL_SETTIME1_EMODE);
909 	outreg(dram_ctrl, GC_DCTL_REFRESH_SETTIME2,
910 	       GC_EVB_DCTL_REFRESH_SETTIME2);
911 	outreg(dram_ctrl, GC_DCTL_RSV2_RSV1, GC_EVB_DCTL_RSV2_RSV1);
912 	outreg(dram_ctrl, GC_DCTL_DDRIF2_DDRIF1, GC_EVB_DCTL_DDRIF2_DDRIF1);
913 	outreg(dram_ctrl, GC_DCTL_RSV0_STATES, GC_EVB_DCTL_RSV0_STATES);
914 
915 	/* DLL reset done? */
916 	while ((inreg(dram_ctrl, GC_DCTL_RSV0_STATES) & GC_DCTL_STATES_MSK)) {
917 		udelay(GC_DCTL_INIT_WAIT_INTERVAL);
918 		if (i++ > GC_DCTL_INIT_WAIT_CNT) {
919 			dev_err(par->dev, "VRAM init failed.\n");
920 			return -EINVAL;
921 		}
922 	}
923 	outreg(dram_ctrl, GC_DCTL_MODE_ADD, GC_EVB_DCTL_MODE_ADD_AFT_RST);
924 	outreg(dram_ctrl, GC_DCTL_RSV0_STATES, GC_EVB_DCTL_RSV0_STATES_AFT_RST);
925 	return 0;
926 }
927 
928 static int carmine_init(struct mb862xxfb_par *par)
929 {
930 	unsigned long reg;
931 
932 	par->ctrl = par->mmio_base + MB86297_CTRL_BASE;
933 	par->i2c = par->mmio_base + MB86297_I2C_BASE;
934 	par->disp = par->mmio_base + MB86297_DISP0_BASE;
935 	par->disp1 = par->mmio_base + MB86297_DISP1_BASE;
936 	par->cap = par->mmio_base + MB86297_CAP0_BASE;
937 	par->cap1 = par->mmio_base + MB86297_CAP1_BASE;
938 	par->draw = par->mmio_base + MB86297_DRAW_BASE;
939 	par->dram_ctrl = par->mmio_base + MB86297_DRAMCTRL_BASE;
940 	par->wrback = par->mmio_base + MB86297_WRBACK_BASE;
941 
942 	par->refclk = GC_DISP_REFCLK_533;
943 
944 	/* warm up */
945 	reg = GC_CTRL_CLK_EN_DRAM | GC_CTRL_CLK_EN_2D3D | GC_CTRL_CLK_EN_DISP0;
946 	outreg(ctrl, GC_CTRL_CLK_ENABLE, reg);
947 
948 	/* check for engine module revision */
949 	if (inreg(draw, GC_2D3D_REV) == GC_RE_REVISION)
950 		dev_info(par->dev, "Fujitsu Carmine GDC Rev.%d found\n",
951 			 par->pdev->revision);
952 	else
953 		goto err_init;
954 
955 	reg &= ~GC_CTRL_CLK_EN_2D3D;
956 	outreg(ctrl, GC_CTRL_CLK_ENABLE, reg);
957 
958 	/* set up vram */
959 	if (init_dram_ctrl(par) < 0)
960 		goto err_init;
961 
962 	outreg(ctrl, GC_CTRL_INT_MASK, 0);
963 	return 0;
964 
965 err_init:
966 	outreg(ctrl, GC_CTRL_CLK_ENABLE, 0);
967 	return -EINVAL;
968 }
969 
970 static inline int mb862xx_pci_gdc_init(struct mb862xxfb_par *par)
971 {
972 	switch (par->type) {
973 	case BT_CORALP:
974 		return coralp_init(par);
975 	case BT_CARMINE:
976 		return carmine_init(par);
977 	default:
978 		return -ENODEV;
979 	}
980 }
981 
982 #define CHIP_ID(id)	\
983 	{ PCI_DEVICE(PCI_VENDOR_ID_FUJITSU_LIMITED, id) }
984 
985 static const struct pci_device_id mb862xx_pci_tbl[] = {
986 	/* MB86295/MB86296 */
987 	CHIP_ID(PCI_DEVICE_ID_FUJITSU_CORALP),
988 	CHIP_ID(PCI_DEVICE_ID_FUJITSU_CORALPA),
989 	/* MB86297 */
990 	CHIP_ID(PCI_DEVICE_ID_FUJITSU_CARMINE),
991 	{ 0, }
992 };
993 
994 MODULE_DEVICE_TABLE(pci, mb862xx_pci_tbl);
995 
996 static int mb862xx_pci_probe(struct pci_dev *pdev,
997 			     const struct pci_device_id *ent)
998 {
999 	struct mb862xxfb_par *par;
1000 	struct fb_info *info;
1001 	struct device *dev = &pdev->dev;
1002 	int ret;
1003 
1004 	ret = pci_enable_device(pdev);
1005 	if (ret < 0) {
1006 		dev_err(dev, "Cannot enable PCI device\n");
1007 		goto out;
1008 	}
1009 
1010 	info = framebuffer_alloc(sizeof(struct mb862xxfb_par), dev);
1011 	if (!info) {
1012 		dev_err(dev, "framebuffer alloc failed\n");
1013 		ret = -ENOMEM;
1014 		goto dis_dev;
1015 	}
1016 
1017 	par = info->par;
1018 	par->info = info;
1019 	par->dev = dev;
1020 	par->pdev = pdev;
1021 	par->irq = pdev->irq;
1022 
1023 	ret = pci_request_regions(pdev, DRV_NAME);
1024 	if (ret < 0) {
1025 		dev_err(dev, "Cannot reserve region(s) for PCI device\n");
1026 		goto rel_fb;
1027 	}
1028 
1029 	switch (pdev->device) {
1030 	case PCI_DEVICE_ID_FUJITSU_CORALP:
1031 	case PCI_DEVICE_ID_FUJITSU_CORALPA:
1032 		par->fb_base_phys = pci_resource_start(par->pdev, 0);
1033 		par->mapped_vram = CORALP_MEM_SIZE;
1034 		if (par->mapped_vram >= 0x2000000) {
1035 			par->mmio_base_phys = par->fb_base_phys +
1036 					      MB862XX_MMIO_HIGH_BASE;
1037 		} else {
1038 			par->mmio_base_phys = par->fb_base_phys +
1039 					      MB862XX_MMIO_BASE;
1040 		}
1041 		par->mmio_len = MB862XX_MMIO_SIZE;
1042 		par->type = BT_CORALP;
1043 		break;
1044 	case PCI_DEVICE_ID_FUJITSU_CARMINE:
1045 		par->fb_base_phys = pci_resource_start(par->pdev, 2);
1046 		par->mmio_base_phys = pci_resource_start(par->pdev, 3);
1047 		par->mmio_len = pci_resource_len(par->pdev, 3);
1048 		par->mapped_vram = CARMINE_MEM_SIZE;
1049 		par->type = BT_CARMINE;
1050 		break;
1051 	default:
1052 		/* should never occur */
1053 		ret = -EIO;
1054 		goto rel_reg;
1055 	}
1056 
1057 	par->fb_base = ioremap(par->fb_base_phys, par->mapped_vram);
1058 	if (par->fb_base == NULL) {
1059 		dev_err(dev, "Cannot map framebuffer\n");
1060 		ret = -EIO;
1061 		goto rel_reg;
1062 	}
1063 
1064 	par->mmio_base = ioremap(par->mmio_base_phys, par->mmio_len);
1065 	if (par->mmio_base == NULL) {
1066 		dev_err(dev, "Cannot map registers\n");
1067 		ret = -EIO;
1068 		goto fb_unmap;
1069 	}
1070 
1071 	dev_dbg(dev, "fb phys 0x%llx 0x%lx\n",
1072 		(unsigned long long)par->fb_base_phys, (ulong)par->mapped_vram);
1073 	dev_dbg(dev, "mmio phys 0x%llx 0x%lx\n",
1074 		(unsigned long long)par->mmio_base_phys, (ulong)par->mmio_len);
1075 
1076 	ret = mb862xx_pci_gdc_init(par);
1077 	if (ret)
1078 		goto io_unmap;
1079 
1080 	ret = request_irq(par->irq, mb862xx_intr, IRQF_SHARED,
1081 			  DRV_NAME, (void *)par);
1082 	if (ret) {
1083 		dev_err(dev, "Cannot request irq\n");
1084 		goto io_unmap;
1085 	}
1086 
1087 	mb862xxfb_init_fbinfo(info);
1088 
1089 	if (fb_alloc_cmap(&info->cmap, NR_PALETTE, 0) < 0) {
1090 		dev_err(dev, "Could not allocate cmap for fb_info.\n");
1091 		ret = -ENOMEM;
1092 		goto free_irq;
1093 	}
1094 
1095 	if ((info->fbops->fb_set_par)(info))
1096 		dev_err(dev, "set_var() failed on initial setup?\n");
1097 
1098 	ret = register_framebuffer(info);
1099 	if (ret < 0) {
1100 		dev_err(dev, "failed to register framebuffer\n");
1101 		goto rel_cmap;
1102 	}
1103 
1104 	pci_set_drvdata(pdev, info);
1105 
1106 	if (device_create_file(dev, &dev_attr_dispregs))
1107 		dev_err(dev, "Can't create sysfs regdump file\n");
1108 
1109 	if (par->type == BT_CARMINE)
1110 		outreg(ctrl, GC_CTRL_INT_MASK, GC_CARMINE_INT_EN);
1111 	else
1112 		outreg(host, GC_IMASK, GC_INT_EN);
1113 
1114 	return 0;
1115 
1116 rel_cmap:
1117 	fb_dealloc_cmap(&info->cmap);
1118 free_irq:
1119 	free_irq(par->irq, (void *)par);
1120 io_unmap:
1121 	iounmap(par->mmio_base);
1122 fb_unmap:
1123 	iounmap(par->fb_base);
1124 rel_reg:
1125 	pci_release_regions(pdev);
1126 rel_fb:
1127 	framebuffer_release(info);
1128 dis_dev:
1129 	pci_disable_device(pdev);
1130 out:
1131 	return ret;
1132 }
1133 
1134 static void mb862xx_pci_remove(struct pci_dev *pdev)
1135 {
1136 	struct fb_info *fbi = pci_get_drvdata(pdev);
1137 	struct mb862xxfb_par *par = fbi->par;
1138 	unsigned long reg;
1139 
1140 	dev_dbg(fbi->dev, "%s release\n", fbi->fix.id);
1141 
1142 	/* display off */
1143 	reg = inreg(disp, GC_DCM1);
1144 	reg &= ~(GC_DCM01_DEN | GC_DCM01_L0E);
1145 	outreg(disp, GC_DCM1, reg);
1146 
1147 	if (par->type == BT_CARMINE) {
1148 		outreg(ctrl, GC_CTRL_INT_MASK, 0);
1149 		outreg(ctrl, GC_CTRL_CLK_ENABLE, 0);
1150 	} else {
1151 		outreg(host, GC_IMASK, 0);
1152 	}
1153 
1154 	mb862xx_i2c_exit(par);
1155 
1156 	device_remove_file(&pdev->dev, &dev_attr_dispregs);
1157 
1158 	unregister_framebuffer(fbi);
1159 	fb_dealloc_cmap(&fbi->cmap);
1160 
1161 	free_irq(par->irq, (void *)par);
1162 	iounmap(par->mmio_base);
1163 	iounmap(par->fb_base);
1164 
1165 	pci_release_regions(pdev);
1166 	framebuffer_release(fbi);
1167 	pci_disable_device(pdev);
1168 }
1169 
1170 static struct pci_driver mb862xxfb_pci_driver = {
1171 	.name		= DRV_NAME,
1172 	.id_table	= mb862xx_pci_tbl,
1173 	.probe		= mb862xx_pci_probe,
1174 	.remove		= mb862xx_pci_remove,
1175 };
1176 #endif
1177 
1178 static int mb862xxfb_init(void)
1179 {
1180 	int ret = -ENODEV;
1181 
1182 #if defined(CONFIG_FB_MB862XX_LIME)
1183 	ret = platform_driver_register(&of_platform_mb862xxfb_driver);
1184 #endif
1185 #if defined(CONFIG_FB_MB862XX_PCI_GDC)
1186 	ret = pci_register_driver(&mb862xxfb_pci_driver);
1187 #endif
1188 	return ret;
1189 }
1190 
1191 static void __exit mb862xxfb_exit(void)
1192 {
1193 #if defined(CONFIG_FB_MB862XX_LIME)
1194 	platform_driver_unregister(&of_platform_mb862xxfb_driver);
1195 #endif
1196 #if defined(CONFIG_FB_MB862XX_PCI_GDC)
1197 	pci_unregister_driver(&mb862xxfb_pci_driver);
1198 #endif
1199 }
1200 
1201 module_init(mb862xxfb_init);
1202 module_exit(mb862xxfb_exit);
1203 
1204 MODULE_DESCRIPTION("Fujitsu MB862xx Framebuffer driver");
1205 MODULE_AUTHOR("Anatolij Gustschin <agust@denx.de>");
1206 MODULE_LICENSE("GPL v2");
1207