1 /*
2  * Copyright 2014 Freescale Semiconductor, Inc.
3  *
4  * FSL DCU Framebuffer driver
5  *
6  * SPDX-License-Identifier:	GPL-2.0+
7  */
8 
9 #include <common.h>
10 #include <fsl_dcu_fb.h>
11 #include "div64.h"
12 #include "../common/dcu_sii9022a.h"
13 
14 DECLARE_GLOBAL_DATA_PTR;
15 
16 unsigned int dcu_set_pixel_clock(unsigned int pixclock)
17 {
18 	unsigned long long div;
19 
20 	div = (unsigned long long)(gd->bus_clk / 1000);
21 	div *= (unsigned long long)pixclock;
22 	do_div(div, 1000000000);
23 
24 	return div;
25 }
26 
27 int platform_dcu_init(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(xres, yres, pixel_format);
45 
46 	return 0;
47 }
48