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York Sunfd7cbfd2008-05-05 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
Wolfgang Denke384d2e2009-05-16 10:47:38 +020030#include "../../board/freescale/common/pixis.h"
31#include "../../board/freescale/common/fsl_diu_fb.h"
York Sunfd7cbfd2008-05-05 10:20:01 -050032
33#if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
34#include <devices.h>
35#include <video_fb.h>
36#endif
37
John Rigby2a1979c2008-10-30 16:39:35 -060038#ifdef CONFIG_FSL_DIU_LOGO_BMP
York Sunfd7cbfd2008-05-05 10:20:01 -050039extern unsigned int FSL_Logo_BMP[];
John Rigby2a1979c2008-10-30 16:39:35 -060040#else
41#define FSL_Logo_BMP NULL
42#endif
York Sunfd7cbfd2008-05-05 10:20:01 -050043
44static int xres, yres;
45
46void diu_set_pixel_clock(unsigned int pixclock)
47{
Jean-Christophe PLAGNIOL-VILLARD03836942008-10-16 15:01:15 +020048 volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
York Sunfd7cbfd2008-05-05 10:20:01 -050049 volatile clk512x_t *clk = &immap->clk;
50 volatile unsigned int *clkdvdr = &clk->scfr[0];
51 unsigned long speed_ccb, temp, pixval;
52
53 speed_ccb = get_bus_freq(0) * 4;
54 temp = 1000000000/pixclock;
55 temp *= 1000;
56 pixval = speed_ccb / temp;
57 debug("DIU pixval = %lu\n", pixval);
58
59 /* Modify PXCLK in GUTS CLKDVDR */
60 debug("DIU: Current value of CLKDVDR = 0x%08x\n", *clkdvdr);
61 temp = *clkdvdr & 0xFFFFFF00;
Kenneth Johansson96273102008-07-12 13:18:34 -060062 *clkdvdr = temp | (pixval & 0xFF);
York Sunfd7cbfd2008-05-05 10:20:01 -050063 debug("DIU: Modified value of CLKDVDR = 0x%08x\n", *clkdvdr);
64}
65
John Rigby3e6375f2008-11-19 13:57:34 -070066char *valid_bmp(char *addr)
67{
68 unsigned long h_addr;
69
70 h_addr = simple_strtoul(addr, NULL, 16);
71 if (h_addr < CONFIG_SYS_FLASH_BASE ||
72 h_addr >= (CONFIG_SYS_FLASH_BASE + CONFIG_SYS_FLASH_SIZE - 1)) {
73 printf("bmp addr %lx is not a valid flash address\n", h_addr);
74 return 0;
75 } else if ((*(char *)(h_addr) != 'B') || (*(char *)(h_addr+1) != 'M')) {
76 printf("bmp addr is not a bmp\n");
77 return 0;
78 } else
79 return (char *)h_addr;
80}
81
Wolfgang Denke384d2e2009-05-16 10:47:38 +020082int mpc5121_diu_init(void)
York Sunfd7cbfd2008-05-05 10:20:01 -050083{
84 unsigned int pixel_format;
John Rigby3e6375f2008-11-19 13:57:34 -070085 char *bmp = NULL;
86 char *bmp_env;
York Sunfd7cbfd2008-05-05 10:20:01 -050087
88 xres = 1024;
89 yres = 768;
90 pixel_format = 0x88883316;
91
Wolfgang Denke384d2e2009-05-16 10:47:38 +020092 debug("mpc5121_diu_init\n");
John Rigby3e6375f2008-11-19 13:57:34 -070093 bmp_env = getenv("diu_bmp_addr");
94 if (bmp_env) {
95 bmp = valid_bmp(bmp_env);
96 }
97 if (!bmp)
98 bmp = FSL_Logo_BMP;
99 return fsl_diu_init(xres, pixel_format, 0, (unsigned char *)bmp);
York Sunfd7cbfd2008-05-05 10:20:01 -0500100}
101
Wolfgang Denke384d2e2009-05-16 10:47:38 +0200102int mpc5121diu_init_show_bmp(cmd_tbl_t *cmdtp,
York Sunfd7cbfd2008-05-05 10:20:01 -0500103 int flag, int argc, char *argv[])
104{
105 unsigned int addr;
106
107 if (argc < 2) {
Peter Tyserddb3af92009-01-27 18:03:10 -0600108 cmd_usage(cmdtp);
York Sunfd7cbfd2008-05-05 10:20:01 -0500109 return 1;
110 }
111
112 if (!strncmp(argv[1], "init", 4)) {
113#if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
114 fsl_diu_clear_screen();
115 drv_video_init();
116#else
Wolfgang Denke384d2e2009-05-16 10:47:38 +0200117 return mpc5121_diu_init();
York Sunfd7cbfd2008-05-05 10:20:01 -0500118#endif
119 } else {
120 addr = simple_strtoul(argv[1], NULL, 16);
121 fsl_diu_clear_screen();
122 fsl_diu_display_bmp((unsigned char *)addr, 0, 0, 0);
123 }
124
125 return 0;
126}
127
128U_BOOT_CMD(
Wolfgang Denke384d2e2009-05-16 10:47:38 +0200129 diufb, CONFIG_SYS_MAXARGS, 1, mpc5121diu_init_show_bmp,
Peter Tyserdfb72b82009-01-27 18:03:12 -0600130 "Init or Display BMP file",
York Sunfd7cbfd2008-05-05 10:20:01 -0500131 "init\n - initialize DIU\n"
Wolfgang Denkc54781c2009-05-24 17:06:54 +0200132 "addr\n - display bmp at address 'addr'"
York Sunfd7cbfd2008-05-05 10:20:01 -0500133 );
134
135
136#if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
137
138/*
139 * The Graphic Device
140 */
141GraphicDevice ctfb;
142void *video_hw_init(void)
143{
144 GraphicDevice *pGD = (GraphicDevice *) &ctfb;
145 struct fb_info *info;
146
Wolfgang Denke384d2e2009-05-16 10:47:38 +0200147 if (mpc5121_diu_init() < 0)
York Sunfd7cbfd2008-05-05 10:20:01 -0500148 return;
149
150 /* fill in Graphic device struct */
151 sprintf(pGD->modeIdent, "%dx%dx%d %ldkHz %ldHz",
152 xres, yres, 32, 64, 60);
153
154 pGD->frameAdrs = (unsigned int)fsl_fb_open(&info);
155 pGD->winSizeX = xres;
156 pGD->winSizeY = yres - info->logo_height;
157 pGD->plnSizeX = pGD->winSizeX;
158 pGD->plnSizeY = pGD->winSizeY;
159
160 pGD->gdfBytesPP = 4;
161 pGD->gdfIndex = GDF_32BIT_X888RGB;
162
163 pGD->isaBase = 0;
164 pGD->pciBase = 0;
165 pGD->memSize = info->screen_size - info->logo_size;
166
167 /* Cursor Start Address */
168 pGD->dprBase = 0;
169 pGD->vprBase = 0;
170 pGD->cprBase = 0;
171
172 return (void *)pGD;
173}
174
175/**
176 * Set the LUT
177 *
178 * @index: color number
179 * @r: red
180 * @b: blue
181 * @g: green
182 */
183void video_set_lut
184 (unsigned int index, unsigned char r, unsigned char g, unsigned char b)
185{
186 return;
187}
188
189#endif /* defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) */