1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright 2014 Freescale Semiconductor, Inc.
4 *
5 * FSL DCU Framebuffer driver
6 */
7
8 #include <common.h>
9 #include <fsl_dcu_fb.h>
10 #include "div64.h"
11 #include "../common/dcu_sii9022a.h"
12
13 DECLARE_GLOBAL_DATA_PTR;
14
dcu_set_pixel_clock(unsigned int pixclock)15 unsigned int dcu_set_pixel_clock(unsigned int pixclock)
16 {
17 unsigned long long div;
18
19 div = (unsigned long long)(gd->bus_clk / 1000);
20 div *= (unsigned long long)pixclock;
21 do_div(div, 1000000000);
22
23 return div;
24 }
25
platform_dcu_init(struct fb_info * fbinfo,unsigned int xres,unsigned int yres,const char * port,struct fb_videomode * dcu_fb_videomode)26 int platform_dcu_init(struct fb_info *fbinfo,
27 unsigned int xres, unsigned int yres,
28 const char *port,
29 struct fb_videomode *dcu_fb_videomode)
30 {
31 const char *name;
32 unsigned int pixel_format;
33
34 if (strncmp(port, "twr_lcd", 4) == 0) {
35 name = "TWR_LCD_RGB card";
36 } else {
37 name = "HDMI";
38 dcu_set_dvi_encoder(dcu_fb_videomode);
39 }
40
41 printf("DCU: Switching to %s monitor @ %ux%u\n", name, xres, yres);
42
43 pixel_format = 32;
44 fsl_dcu_init(fbinfo, xres, yres, pixel_format);
45
46 return 0;
47 }
48