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York Sun0e1bad42008-05-05 10:20:01 -05001/*
2 * Copyright 2008 Freescale Semiconductor, Inc.
3 * York Sun <yorksun@freescale.com>
4 *
5 * FSL DIU Framebuffer driver
6 *
7 * See file CREDITS for list of people who contributed to this
8 * project.
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of
13 * the License, or (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
23 * MA 02111-1307 USA
24 */
25
26#include <common.h>
27#include <command.h>
28#include <asm/io.h>
29
30#ifdef CONFIG_FSL_DIU_FB
31
32#include "../freescale/common/pixis.h"
33#include "../freescale/common/fsl_diu_fb.h"
34
35#if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
36#include <devices.h>
37#include <video_fb.h>
38#endif
39
40extern unsigned int FSL_Logo_BMP[];
41
42static int xres, yres;
43
44void diu_set_pixel_clock(unsigned int pixclock)
45{
46 volatile immap_t *immap = (immap_t *)CFG_IMMR;
47 volatile clk512x_t *clk = &immap->clk;
48 volatile unsigned int *clkdvdr = &clk->scfr[0];
49 unsigned long speed_ccb, temp, pixval;
50
51 speed_ccb = get_bus_freq(0) * 4;
52 temp = 1000000000/pixclock;
53 temp *= 1000;
54 pixval = speed_ccb / temp;
55 debug("DIU pixval = %lu\n", pixval);
56
57 /* Modify PXCLK in GUTS CLKDVDR */
58 debug("DIU: Current value of CLKDVDR = 0x%08x\n", *clkdvdr);
59 temp = *clkdvdr & 0xFFFFFF00;
Kenneth Johanssonf8892652008-07-12 13:18:34 -060060 *clkdvdr = temp | (pixval & 0xFF);
York Sun0e1bad42008-05-05 10:20:01 -050061 debug("DIU: Modified value of CLKDVDR = 0x%08x\n", *clkdvdr);
62}
63
64int ads5121_diu_init(void)
65{
66 unsigned int pixel_format;
67
68 xres = 1024;
69 yres = 768;
70 pixel_format = 0x88883316;
71
72 return fsl_diu_init(xres, pixel_format, 0,
73 (unsigned char *)FSL_Logo_BMP);
74}
75
76int ads5121diu_init_show_bmp(cmd_tbl_t *cmdtp,
77 int flag, int argc, char *argv[])
78{
79 unsigned int addr;
80
81 if (argc < 2) {
82 printf("Usage:\n%s\n", cmdtp->usage);
83 return 1;
84 }
85
86 if (!strncmp(argv[1], "init", 4)) {
87#if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
88 fsl_diu_clear_screen();
89 drv_video_init();
90#else
91 return ads5121_diu_init();
92#endif
93 } else {
94 addr = simple_strtoul(argv[1], NULL, 16);
95 fsl_diu_clear_screen();
96 fsl_diu_display_bmp((unsigned char *)addr, 0, 0, 0);
97 }
98
99 return 0;
100}
101
102U_BOOT_CMD(
103 diufb, CFG_MAXARGS, 1, ads5121diu_init_show_bmp,
104 "diufb init | addr - Init or Display BMP file\n",
105 "init\n - initialize DIU\n"
106 "addr\n - display bmp at address 'addr'\n"
107 );
108
109
110#if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
111
112/*
113 * The Graphic Device
114 */
115GraphicDevice ctfb;
116void *video_hw_init(void)
117{
118 GraphicDevice *pGD = (GraphicDevice *) &ctfb;
119 struct fb_info *info;
120
121 if (ads5121_diu_init() < 0)
122 return;
123
124 /* fill in Graphic device struct */
125 sprintf(pGD->modeIdent, "%dx%dx%d %ldkHz %ldHz",
126 xres, yres, 32, 64, 60);
127
128 pGD->frameAdrs = (unsigned int)fsl_fb_open(&info);
129 pGD->winSizeX = xres;
130 pGD->winSizeY = yres - info->logo_height;
131 pGD->plnSizeX = pGD->winSizeX;
132 pGD->plnSizeY = pGD->winSizeY;
133
134 pGD->gdfBytesPP = 4;
135 pGD->gdfIndex = GDF_32BIT_X888RGB;
136
137 pGD->isaBase = 0;
138 pGD->pciBase = 0;
139 pGD->memSize = info->screen_size - info->logo_size;
140
141 /* Cursor Start Address */
142 pGD->dprBase = 0;
143 pGD->vprBase = 0;
144 pGD->cprBase = 0;
145
146 return (void *)pGD;
147}
148
149/**
150 * Set the LUT
151 *
152 * @index: color number
153 * @r: red
154 * @b: blue
155 * @g: green
156 */
157void video_set_lut
158 (unsigned int index, unsigned char r, unsigned char g, unsigned char b)
159{
160 return;
161}
162
163#endif /* defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) */
164
165#endif /* CONFIG_FSL_DIU_FB */