2 * Copyright 2008 Freescale Semiconductor, Inc.
3 * York Sun <yorksun@freescale.com>
5 * FSL DIU Framebuffer driver
7 * See file CREDITS for list of people who contributed to this
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.
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.
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,
30 #include "../../board/freescale/common/pixis.h"
31 #include "../../board/freescale/common/fsl_diu_fb.h"
33 #if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
34 #include <stdio_dev.h>
38 #ifdef CONFIG_FSL_DIU_LOGO_BMP
39 extern unsigned int FSL_Logo_BMP[];
41 #define FSL_Logo_BMP NULL
44 static int xres, yres;
46 void diu_set_pixel_clock(unsigned int pixclock)
48 volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
49 volatile clk512x_t *clk = &immap->clk;
50 volatile unsigned int *clkdvdr = &clk->scfr[0];
51 unsigned long speed_ccb, temp, pixval;
53 speed_ccb = get_bus_freq(0) * 4;
54 temp = 1000000000/pixclock;
56 pixval = speed_ccb / temp;
57 debug("DIU pixval = %lu\n", pixval);
59 /* Modify PXCLK in GUTS CLKDVDR */
60 debug("DIU: Current value of CLKDVDR = 0x%08x\n", *clkdvdr);
61 temp = *clkdvdr & 0xFFFFFF00;
62 *clkdvdr = temp | (pixval & 0xFF);
63 debug("DIU: Modified value of CLKDVDR = 0x%08x\n", *clkdvdr);
66 char *valid_bmp(char *addr)
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);
75 } else if ((*(char *)(h_addr) != 'B') || (*(char *)(h_addr+1) != 'M')) {
76 printf("bmp addr is not a bmp\n");
79 return (char *)h_addr;
82 int mpc5121_diu_init(void)
84 unsigned int pixel_format;
90 pixel_format = 0x88883316;
92 debug("mpc5121_diu_init\n");
93 bmp_env = getenv("diu_bmp_addr");
95 bmp = valid_bmp(bmp_env);
98 bmp = (char *)FSL_Logo_BMP;
99 return fsl_diu_init(xres, pixel_format, 0, (unsigned char *)bmp);
102 int mpc5121diu_init_show_bmp(cmd_tbl_t *cmdtp,
103 int flag, int argc, char *argv[])
112 if (!strncmp(argv[1], "init", 4)) {
113 #if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
114 fsl_diu_clear_screen();
117 return mpc5121_diu_init();
120 addr = simple_strtoul(argv[1], NULL, 16);
121 fsl_diu_clear_screen();
122 fsl_diu_display_bmp((unsigned char *)addr, 0, 0, 0);
129 diufb, CONFIG_SYS_MAXARGS, 1, mpc5121diu_init_show_bmp,
130 "Init or Display BMP file",
131 "init\n - initialize DIU\n"
132 "addr\n - display bmp at address 'addr'"
136 #if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
142 void *video_hw_init(void)
144 GraphicDevice *pGD = (GraphicDevice *) &ctfb;
145 struct fb_info *info;
147 if (mpc5121_diu_init() < 0)
150 /* fill in Graphic device struct */
151 sprintf(pGD->modeIdent, "%dx%dx%d %ldkHz %ldHz",
152 xres, yres, 32, 64, 60);
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;
161 pGD->gdfIndex = GDF_32BIT_X888RGB;
165 pGD->memSize = info->screen_size - info->logo_size;
167 /* Cursor Start Address */
178 * @index: color number
184 (unsigned int index, unsigned char r, unsigned char g, unsigned char b)
189 #endif /* defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) */