2 * Copyright 2014 Freescale Semiconductor, Inc.
4 * FSL DCU Framebuffer driver
6 * SPDX-License-Identifier: GPL-2.0+
11 #include <fdt_support.h>
12 #include <fsl_dcu_fb.h>
16 #include "videomodes.h"
18 /* Convert the X,Y resolution pair into a single number */
19 #define RESOLUTION(x, y) (((u32)(x) << 16) | (y))
21 #ifdef CONFIG_SYS_FSL_DCU_LE
22 #define dcu_read32 in_le32
23 #define dcu_write32 out_le32
24 #elif defined(CONFIG_SYS_FSL_DCU_BE)
25 #define dcu_read32 in_be32
26 #define dcu_write32 out_be32
29 #define DCU_MODE_BLEND_ITER(x) ((x) << 20)
30 #define DCU_MODE_RASTER_EN (1 << 14)
31 #define DCU_MODE_NORMAL 1
32 #define DCU_MODE_COLORBAR 3
33 #define DCU_BGND_R(x) ((x) << 16)
34 #define DCU_BGND_G(x) ((x) << 8)
35 #define DCU_BGND_B(x) (x)
36 #define DCU_DISP_SIZE_DELTA_Y(x) ((x) << 16)
37 #define DCU_DISP_SIZE_DELTA_X(x) (x)
38 #define DCU_HSYN_PARA_BP(x) ((x) << 22)
39 #define DCU_HSYN_PARA_PW(x) ((x) << 11)
40 #define DCU_HSYN_PARA_FP(x) (x)
41 #define DCU_VSYN_PARA_BP(x) ((x) << 22)
42 #define DCU_VSYN_PARA_PW(x) ((x) << 11)
43 #define DCU_VSYN_PARA_FP(x) (x)
44 #define DCU_SYN_POL_INV_PXCK_FALL (1 << 6)
45 #define DCU_SYN_POL_NEG_REMAIN (0 << 5)
46 #define DCU_SYN_POL_INV_VS_LOW (1 << 1)
47 #define DCU_SYN_POL_INV_HS_LOW (1)
48 #define DCU_THRESHOLD_LS_BF_VS(x) ((x) << 16)
49 #define DCU_THRESHOLD_OUT_BUF_HIGH(x) ((x) << 8)
50 #define DCU_THRESHOLD_OUT_BUF_LOW(x) (x)
51 #define DCU_UPDATE_MODE_MODE (1 << 31)
52 #define DCU_UPDATE_MODE_READREG (1 << 30)
54 #define DCU_CTRLDESCLN_1_HEIGHT(x) ((x) << 16)
55 #define DCU_CTRLDESCLN_1_WIDTH(x) (x)
56 #define DCU_CTRLDESCLN_2_POSY(x) ((x) << 16)
57 #define DCU_CTRLDESCLN_2_POSX(x) (x)
58 #define DCU_CTRLDESCLN_4_EN (1 << 31)
59 #define DCU_CTRLDESCLN_4_TILE_EN (1 << 30)
60 #define DCU_CTRLDESCLN_4_DATA_SEL_CLUT (1 << 29)
61 #define DCU_CTRLDESCLN_4_SAFETY_EN (1 << 28)
62 #define DCU_CTRLDESCLN_4_TRANS(x) ((x) << 20)
63 #define DCU_CTRLDESCLN_4_BPP(x) ((x) << 16)
64 #define DCU_CTRLDESCLN_4_RLE_EN (1 << 15)
65 #define DCU_CTRLDESCLN_4_LUOFFS(x) ((x) << 4)
66 #define DCU_CTRLDESCLN_4_BB_ON (1 << 2)
67 #define DCU_CTRLDESCLN_4_AB(x) (x)
68 #define DCU_CTRLDESCLN_5_CKMAX_R(x) ((x) << 16)
69 #define DCU_CTRLDESCLN_5_CKMAX_G(x) ((x) << 8)
70 #define DCU_CTRLDESCLN_5_CKMAX_B(x) (x)
71 #define DCU_CTRLDESCLN_6_CKMIN_R(x) ((x) << 16)
72 #define DCU_CTRLDESCLN_6_CKMIN_G(x) ((x) << 8)
73 #define DCU_CTRLDESCLN_6_CKMIN_B(x) (x)
74 #define DCU_CTRLDESCLN_7_TILE_VER(x) ((x) << 16)
75 #define DCU_CTRLDESCLN_7_TILE_HOR(x) (x)
76 #define DCU_CTRLDESCLN_8_FG_FCOLOR(x) (x)
77 #define DCU_CTRLDESCLN_9_BG_BCOLOR(x) (x)
79 #define BPP_16_RGB565 4
80 #define BPP_24_RGB888 5
81 #define BPP_32_ARGB8888 6
83 DECLARE_GLOBAL_DATA_PTR
;
86 * This setting is used for the TWR_LCD_RGB card
88 static struct fb_videomode fsl_dcu_mode_480_272
= {
100 .sync
= FB_SYNC_COMP_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
101 .vmode
= FB_VMODE_NONINTERLACED
105 * This setting is used for Siliconimage SiI9022A HDMI
107 static struct fb_videomode fsl_dcu_cea_mode_640_480
= {
108 .name
= "640x480-60",
120 .vmode
= FB_VMODE_NONINTERLACED
,
123 static struct fb_videomode fsl_dcu_mode_640_480
= {
124 .name
= "640x480-60",
136 .vmode
= FB_VMODE_NONINTERLACED
,
139 static struct fb_videomode fsl_dcu_mode_800_480
= {
140 .name
= "800x480-60",
152 .vmode
= FB_VMODE_NONINTERLACED
,
155 static struct fb_videomode fsl_dcu_mode_1024_600
= {
156 .name
= "1024x600-60",
168 .vmode
= FB_VMODE_NONINTERLACED
,
189 u8 res_064
[0x6c-0x64];
190 u32 parr_err_status1
;
191 u8 res_070
[0x7c-0x70];
192 u32 parr_err_status3
;
193 u32 mparr_err_status1
;
194 u8 res_084
[0x90-0x84];
195 u32 mparr_err_status3
;
196 u32 threshold_inp_buf
[2];
197 u8 res_09c
[0xa0-0x9c];
208 u8 res_0c4
[0xcc-0xc8];
211 u8 res_0d4
[0x100-0xd4];
218 u8 res_120
[0x200-0x120];
219 u32 ctrldescl
[DCU_LAYER_MAX_NUM
][16];
222 static struct fb_info info
;
224 static void reset_total_layers(void)
226 struct dcu_reg
*regs
= (struct dcu_reg
*)CONFIG_SYS_DCU_ADDR
;
229 for (i
= 0; i
< DCU_LAYER_MAX_NUM
; i
++) {
230 dcu_write32(®s
->ctrldescl
[i
][0], 0);
231 dcu_write32(®s
->ctrldescl
[i
][1], 0);
232 dcu_write32(®s
->ctrldescl
[i
][2], 0);
233 dcu_write32(®s
->ctrldescl
[i
][3], 0);
234 dcu_write32(®s
->ctrldescl
[i
][4], 0);
235 dcu_write32(®s
->ctrldescl
[i
][5], 0);
236 dcu_write32(®s
->ctrldescl
[i
][6], 0);
237 dcu_write32(®s
->ctrldescl
[i
][7], 0);
238 dcu_write32(®s
->ctrldescl
[i
][8], 0);
239 dcu_write32(®s
->ctrldescl
[i
][9], 0);
240 dcu_write32(®s
->ctrldescl
[i
][10], 0);
244 static int layer_ctrldesc_init(int index
, u32 pixel_format
)
246 struct dcu_reg
*regs
= (struct dcu_reg
*)CONFIG_SYS_DCU_ADDR
;
247 unsigned int bpp
= BPP_24_RGB888
;
249 dcu_write32(®s
->ctrldescl
[index
][0],
250 DCU_CTRLDESCLN_1_HEIGHT(info
.var
.yres
) |
251 DCU_CTRLDESCLN_1_WIDTH(info
.var
.xres
));
253 dcu_write32(®s
->ctrldescl
[index
][1],
254 DCU_CTRLDESCLN_2_POSY(0) |
255 DCU_CTRLDESCLN_2_POSX(0));
257 dcu_write32(®s
->ctrldescl
[index
][2], (unsigned int)info
.screen_base
);
259 switch (pixel_format
) {
267 bpp
= BPP_32_ARGB8888
;
270 printf("unsupported color depth: %u\n", pixel_format
);
273 dcu_write32(®s
->ctrldescl
[index
][3],
274 DCU_CTRLDESCLN_4_EN
|
275 DCU_CTRLDESCLN_4_TRANS(0xff) |
276 DCU_CTRLDESCLN_4_BPP(bpp
) |
277 DCU_CTRLDESCLN_4_AB(0));
279 dcu_write32(®s
->ctrldescl
[index
][4],
280 DCU_CTRLDESCLN_5_CKMAX_R(0xff) |
281 DCU_CTRLDESCLN_5_CKMAX_G(0xff) |
282 DCU_CTRLDESCLN_5_CKMAX_B(0xff));
283 dcu_write32(®s
->ctrldescl
[index
][5],
284 DCU_CTRLDESCLN_6_CKMIN_R(0) |
285 DCU_CTRLDESCLN_6_CKMIN_G(0) |
286 DCU_CTRLDESCLN_6_CKMIN_B(0));
288 dcu_write32(®s
->ctrldescl
[index
][6],
289 DCU_CTRLDESCLN_7_TILE_VER(0) |
290 DCU_CTRLDESCLN_7_TILE_HOR(0));
292 dcu_write32(®s
->ctrldescl
[index
][7], DCU_CTRLDESCLN_8_FG_FCOLOR(0));
293 dcu_write32(®s
->ctrldescl
[index
][8], DCU_CTRLDESCLN_9_BG_BCOLOR(0));
298 int fsl_dcu_init(unsigned int xres
, unsigned int yres
,
299 unsigned int pixel_format
)
301 struct dcu_reg
*regs
= (struct dcu_reg
*)CONFIG_SYS_DCU_ADDR
;
302 unsigned int div
, mode
;
305 info
.var
.xres
* info
.var
.yres
* (info
.var
.bits_per_pixel
/ 8);
307 if (info
.screen_size
> CONFIG_VIDEO_FSL_DCU_MAX_FB_SIZE_MB
) {
308 info
.screen_size
= 0;
312 /* Reserve framebuffer at the end of memory */
313 gd
->fb_base
= gd
->bd
->bi_dram
[0].start
+
314 gd
->bd
->bi_dram
[0].size
- info
.screen_size
;
315 info
.screen_base
= (char *)gd
->fb_base
;
317 memset(info
.screen_base
, 0, info
.screen_size
);
319 reset_total_layers();
321 dcu_write32(®s
->disp_size
,
322 DCU_DISP_SIZE_DELTA_Y(info
.var
.yres
) |
323 DCU_DISP_SIZE_DELTA_X(info
.var
.xres
/ 16));
325 dcu_write32(®s
->hsyn_para
,
326 DCU_HSYN_PARA_BP(info
.var
.left_margin
) |
327 DCU_HSYN_PARA_PW(info
.var
.hsync_len
) |
328 DCU_HSYN_PARA_FP(info
.var
.right_margin
));
330 dcu_write32(®s
->vsyn_para
,
331 DCU_VSYN_PARA_BP(info
.var
.upper_margin
) |
332 DCU_VSYN_PARA_PW(info
.var
.vsync_len
) |
333 DCU_VSYN_PARA_FP(info
.var
.lower_margin
));
335 dcu_write32(®s
->synpol
,
336 DCU_SYN_POL_INV_PXCK_FALL
|
337 DCU_SYN_POL_NEG_REMAIN
|
338 DCU_SYN_POL_INV_VS_LOW
|
339 DCU_SYN_POL_INV_HS_LOW
);
341 dcu_write32(®s
->bgnd
,
342 DCU_BGND_R(0) | DCU_BGND_G(0) | DCU_BGND_B(0));
344 dcu_write32(®s
->mode
,
345 DCU_MODE_BLEND_ITER(2) |
348 dcu_write32(®s
->threshold
,
349 DCU_THRESHOLD_LS_BF_VS(0x3) |
350 DCU_THRESHOLD_OUT_BUF_HIGH(0x78) |
351 DCU_THRESHOLD_OUT_BUF_LOW(0));
353 mode
= dcu_read32(®s
->mode
);
354 dcu_write32(®s
->mode
, mode
| DCU_MODE_NORMAL
);
356 layer_ctrldesc_init(0, pixel_format
);
358 div
= dcu_set_pixel_clock(info
.var
.pixclock
);
359 dcu_write32(®s
->div_ratio
, (div
- 1));
361 dcu_write32(®s
->update_mode
, DCU_UPDATE_MODE_READREG
);
366 ulong
board_get_usable_ram_top(ulong total_size
)
368 return gd
->ram_top
- CONFIG_VIDEO_FSL_DCU_MAX_FB_SIZE_MB
;
371 void *video_hw_init(void)
373 static GraphicDevice ctfb
;
375 unsigned int depth
= 0, freq
= 0;
376 struct fb_videomode
*fsl_dcu_mode_db
= &fsl_dcu_mode_480_272
;
378 if (!video_get_video_mode(&ctfb
.winSizeX
, &ctfb
.winSizeY
, &depth
, &freq
,
382 /* Find the monitor port, which is a required option */
385 if (strncmp(options
, "monitor=", 8) != 0)
388 switch (RESOLUTION(ctfb
.winSizeX
, ctfb
.winSizeY
)) {
389 case RESOLUTION(480, 272):
390 fsl_dcu_mode_db
= &fsl_dcu_mode_480_272
;
392 case RESOLUTION(640, 480):
393 if (!strncmp(options
, "monitor=hdmi", 12))
394 fsl_dcu_mode_db
= &fsl_dcu_cea_mode_640_480
;
396 fsl_dcu_mode_db
= &fsl_dcu_mode_640_480
;
398 case RESOLUTION(800, 480):
399 fsl_dcu_mode_db
= &fsl_dcu_mode_800_480
;
401 case RESOLUTION(1024, 600):
402 fsl_dcu_mode_db
= &fsl_dcu_mode_1024_600
;
405 printf("unsupported resolution %ux%u\n",
406 ctfb
.winSizeX
, ctfb
.winSizeY
);
409 info
.var
.xres
= fsl_dcu_mode_db
->xres
;
410 info
.var
.yres
= fsl_dcu_mode_db
->yres
;
411 info
.var
.bits_per_pixel
= 32;
412 info
.var
.pixclock
= fsl_dcu_mode_db
->pixclock
;
413 info
.var
.left_margin
= fsl_dcu_mode_db
->left_margin
;
414 info
.var
.right_margin
= fsl_dcu_mode_db
->right_margin
;
415 info
.var
.upper_margin
= fsl_dcu_mode_db
->upper_margin
;
416 info
.var
.lower_margin
= fsl_dcu_mode_db
->lower_margin
;
417 info
.var
.hsync_len
= fsl_dcu_mode_db
->hsync_len
;
418 info
.var
.vsync_len
= fsl_dcu_mode_db
->vsync_len
;
419 info
.var
.sync
= fsl_dcu_mode_db
->sync
;
420 info
.var
.vmode
= fsl_dcu_mode_db
->vmode
;
421 info
.fix
.line_length
= info
.var
.xres
* info
.var
.bits_per_pixel
/ 8;
423 if (platform_dcu_init(ctfb
.winSizeX
, ctfb
.winSizeY
,
424 options
+ 8, fsl_dcu_mode_db
) < 0)
427 ctfb
.frameAdrs
= (unsigned int)info
.screen_base
;
428 ctfb
.plnSizeX
= ctfb
.winSizeX
;
429 ctfb
.plnSizeY
= ctfb
.winSizeY
;
432 ctfb
.gdfIndex
= GDF_32BIT_X888RGB
;
434 ctfb
.memSize
= info
.screen_size
;
439 #if defined(CONFIG_OF_BOARD_SETUP)
440 int fsl_dcu_fixedfb_setup(void *blob
)
445 start
= gd
->bd
->bi_dram
[0].start
;
446 size
= gd
->bd
->bi_dram
[0].size
- info
.screen_size
;
449 * Align size on section size (1 MiB).
452 ret
= fdt_fixup_memory_banks(blob
, &start
, &size
, 1);
454 eprintf("Cannot setup fb: Error reserving memory\n");