1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright 2016 Freescale Semiconductor, Inc.
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * FSL DCU Framebuffer driver
5*4882a593Smuzhiyun *
6*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
7*4882a593Smuzhiyun */
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun #include <common.h>
10*4882a593Smuzhiyun #include <fsl_dcu_fb.h>
11*4882a593Smuzhiyun #include "div64.h"
12*4882a593Smuzhiyun #include "../common/dcu_sii9022a.h"
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun DECLARE_GLOBAL_DATA_PTR;
15*4882a593Smuzhiyun
dcu_set_pixel_clock(unsigned int pixclock)16*4882a593Smuzhiyun unsigned int dcu_set_pixel_clock(unsigned int pixclock)
17*4882a593Smuzhiyun {
18*4882a593Smuzhiyun unsigned long long div;
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun div = (unsigned long long)(gd->bus_clk / 1000);
21*4882a593Smuzhiyun div *= (unsigned long long)pixclock;
22*4882a593Smuzhiyun do_div(div, 1000000000);
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun return div;
25*4882a593Smuzhiyun }
26*4882a593Smuzhiyun
platform_dcu_init(unsigned int xres,unsigned int yres,const char * port,struct fb_videomode * dcu_fb_videomode)27*4882a593Smuzhiyun int platform_dcu_init(unsigned int xres, unsigned int yres,
28*4882a593Smuzhiyun const char *port,
29*4882a593Smuzhiyun struct fb_videomode *dcu_fb_videomode)
30*4882a593Smuzhiyun {
31*4882a593Smuzhiyun const char *name;
32*4882a593Smuzhiyun unsigned int pixel_format;
33*4882a593Smuzhiyun
34*4882a593Smuzhiyun if (strncmp(port, "twr_lcd", 4) == 0) {
35*4882a593Smuzhiyun name = "TWR_LCD_RGB card";
36*4882a593Smuzhiyun } else {
37*4882a593Smuzhiyun name = "HDMI";
38*4882a593Smuzhiyun dcu_set_dvi_encoder(dcu_fb_videomode);
39*4882a593Smuzhiyun }
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun printf("DCU: Switching to %s monitor @ %ux%u\n", name, xres, yres);
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun pixel_format = 32;
44*4882a593Smuzhiyun fsl_dcu_init(xres, yres, pixel_format);
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun return 0;
47*4882a593Smuzhiyun }
48