1 /* 2 * Copyright 2007 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 "../common/pixis.h" 33 #include "../common/fsl_diu_fb.h" 34 35 #if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) 36 #include <stdio_dev.h> 37 #include <video_fb.h> 38 #endif 39 40 extern unsigned int FSL_Logo_BMP[]; 41 42 static int xres, yres; 43 44 void diu_set_pixel_clock(unsigned int pixclock) 45 { 46 volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; 47 volatile ccsr_gur_t *gur = &immap->im_gur; 48 volatile unsigned int *guts_clkdvdr = &gur->clkdvdr; 49 unsigned long speed_ccb, temp, pixval; 50 51 speed_ccb = get_bus_freq(0); 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", *guts_clkdvdr); 59 temp = *guts_clkdvdr & 0x2000FFFF; 60 *guts_clkdvdr = temp; /* turn off clock */ 61 *guts_clkdvdr = temp | 0x80000000 | ((pixval & 0x1F) << 16); 62 debug("DIU: Modified value of CLKDVDR = 0x%08x\n", *guts_clkdvdr); 63 } 64 65 void mpc8610hpcd_diu_init(void) 66 { 67 char *monitor_port; 68 int gamma_fix; 69 unsigned int pixel_format; 70 unsigned char tmp_val; 71 unsigned char pixis_arch; 72 u8 *pixis_base = (u8 *)PIXIS_BASE; 73 74 tmp_val = in_8(pixis_base + PIXIS_BRDCFG0); 75 pixis_arch = in_8(pixis_base + PIXIS_VER); 76 77 monitor_port = getenv("monitor"); 78 if (!strncmp(monitor_port, "0", 1)) { /* 0 - DVI */ 79 xres = 1280; 80 yres = 1024; 81 if (pixis_arch == 0x01) 82 pixel_format = 0x88882317; 83 else 84 pixel_format = 0x88883316; 85 gamma_fix = 0; 86 out_8(pixis_base + PIXIS_BRDCFG0, tmp_val | 0x08); 87 88 } else if (!strncmp(monitor_port, "1", 1)) { /* 1 - Single link LVDS */ 89 xres = 1024; 90 yres = 768; 91 pixel_format = 0x88883316; 92 gamma_fix = 0; 93 out_8(pixis_base + PIXIS_BRDCFG0, (tmp_val & 0xf7) | 0x10); 94 95 } else if (!strncmp(monitor_port, "2", 1)) { /* 2 - Double link LVDS */ 96 xres = 1280; 97 yres = 1024; 98 pixel_format = 0x88883316; 99 gamma_fix = 1; 100 out_8(pixis_base + PIXIS_BRDCFG0, tmp_val & 0xe7); 101 102 } else { /* DVI */ 103 xres = 1280; 104 yres = 1024; 105 pixel_format = 0x88882317; 106 gamma_fix = 0; 107 out_8(pixis_base + PIXIS_BRDCFG0, tmp_val | 0x08); 108 } 109 110 fsl_diu_init(xres, pixel_format, gamma_fix, 111 (unsigned char *)FSL_Logo_BMP); 112 } 113 114 int mpc8610diu_init_show_bmp(cmd_tbl_t *cmdtp, 115 int flag, int argc, char *argv[]) 116 { 117 unsigned int addr; 118 119 if (argc < 2) { 120 cmd_usage(cmdtp); 121 return 1; 122 } 123 124 if (!strncmp(argv[1],"init",4)) { 125 #if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) 126 fsl_diu_clear_screen(); 127 drv_video_init(); 128 #else 129 mpc8610hpcd_diu_init(); 130 #endif 131 } else { 132 addr = simple_strtoul(argv[1], NULL, 16); 133 fsl_diu_clear_screen(); 134 fsl_diu_display_bmp((unsigned char *)addr, 0, 0, 0); 135 } 136 137 return 0; 138 } 139 140 U_BOOT_CMD( 141 diufb, CONFIG_SYS_MAXARGS, 1, mpc8610diu_init_show_bmp, 142 "Init or Display BMP file", 143 "init\n - initialize DIU\n" 144 "addr\n - display bmp at address 'addr'" 145 ); 146 147 148 #if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) 149 150 /* 151 * The Graphic Device 152 */ 153 GraphicDevice ctfb; 154 void *video_hw_init(void) 155 { 156 GraphicDevice *pGD = (GraphicDevice *) &ctfb; 157 struct fb_info *info; 158 159 mpc8610hpcd_diu_init(); 160 161 /* fill in Graphic device struct */ 162 sprintf(pGD->modeIdent, 163 "%dx%dx%d %ldkHz %ldHz", 164 xres, yres, 32, 64, 60); 165 166 pGD->frameAdrs = (unsigned int)fsl_fb_open(&info); 167 pGD->winSizeX = xres; 168 pGD->winSizeY = yres - info->logo_height; 169 pGD->plnSizeX = pGD->winSizeX; 170 pGD->plnSizeY = pGD->winSizeY; 171 172 pGD->gdfBytesPP = 4; 173 pGD->gdfIndex = GDF_32BIT_X888RGB; 174 175 pGD->isaBase = 0; 176 pGD->pciBase = 0; 177 pGD->memSize = info->screen_size - info->logo_size; 178 179 /* Cursor Start Address */ 180 pGD->dprBase = 0; 181 pGD->vprBase = 0; 182 pGD->cprBase = 0; 183 184 return (void *)pGD; 185 } 186 187 void video_set_lut (unsigned int index, /* color number */ 188 unsigned char r, /* red */ 189 unsigned char g, /* green */ 190 unsigned char b /* blue */ 191 ) 192 { 193 return; 194 } 195 196 #endif /* defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) */ 197 198 #endif /* CONFIG_FSL_DIU_FB */ 199