1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright 2016 Freescale Semiconductor, Inc.
4 *
5 * FSL DCU Framebuffer driver
6 */
7
8 #include <common.h>
9 #include <fsl_dcu_fb.h>
10 #include <asm/global_data.h>
11 #include "div64.h"
12 #include "../common/dcu_sii9022a.h"
13
14 DECLARE_GLOBAL_DATA_PTR;
15
dcu_set_pixel_clock(unsigned int pixclock)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
platform_dcu_init(struct fb_info * fbinfo,unsigned int xres,unsigned int yres,const char * port,struct fb_videomode * dcu_fb_videomode)27 int platform_dcu_init(struct fb_info *fbinfo,
28 unsigned int xres, unsigned int yres,
29 const char *port,
30 struct fb_videomode *dcu_fb_videomode)
31 {
32 const char *name;
33 unsigned int pixel_format;
34
35 if (strncmp(port, "twr_lcd", 4) == 0) {
36 name = "TWR_LCD_RGB card";
37 } else {
38 name = "HDMI";
39 dcu_set_dvi_encoder(dcu_fb_videomode);
40 }
41
42 printf("DCU: Switching to %s monitor @ %ux%u\n", name, xres, yres);
43
44 pixel_format = 32;
45 fsl_dcu_init(fbinfo, xres, yres, pixel_format);
46
47 return 0;
48 }
49