board/freescale/mpc8610hpcd/mpc8610hpcd_diu.c

   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 <devices.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
  73         tmp_val = in8(PIXIS_BASE + PIXIS_BRDCFG0);
  74         pixis_arch = in8(PIXIS_BASE + PIXIS_VER);
  75
  76         monitor_port = getenv("monitor");
  77         if (!strncmp(monitor_port, "0", 1)) {   /* 0 - DVI */
  78                 xres = 1280;
  79                 yres = 1024;
  80                 if (pixis_arch == 0x01)
  81                         pixel_format = 0x88882317;
  82                 else
  83                         pixel_format = 0x88883316;
  84                 gamma_fix = 0;
  85                 out8(PIXIS_BASE + PIXIS_BRDCFG0, tmp_val | 0x08);
  86
  87         } else if (!strncmp(monitor_port, "1", 1)) { /* 1 - Single link LVDS */
  88                 xres = 1024;
  89                 yres = 768;
  90                 pixel_format = 0x88883316;
  91                 gamma_fix = 0;
  92                 out8(PIXIS_BASE + PIXIS_BRDCFG0, (tmp_val & 0xf7) | 0x10);
  93
  94         } else if (!strncmp(monitor_port, "2", 1)) { /* 2 - Double link LVDS */
  95                 xres = 1280;
  96                 yres = 1024;
  97                 pixel_format = 0x88883316;
  98                 gamma_fix = 1;
  99                 out8(PIXIS_BASE + PIXIS_BRDCFG0, tmp_val & 0xe7);
 100
 101         } else {        /* DVI */
 102                 xres = 1280;
 103                 yres = 1024;
 104                 pixel_format = 0x88882317;
 105                 gamma_fix = 0;
 106                 out8(PIXIS_BASE + PIXIS_BRDCFG0, tmp_val | 0x08);
 107         }
 108
 109         fsl_diu_init(xres, pixel_format, gamma_fix,
 110                      (unsigned char *)FSL_Logo_BMP);
 111 }
 112
 113 int mpc8610diu_init_show_bmp(cmd_tbl_t *cmdtp,
 114                              int flag, int argc, char *argv[])
 115 {
 116         unsigned int addr;
 117
 118         if (argc < 2) {
 119                 cmd_usage(cmdtp);
 120                 return 1;
 121         }
 122
 123         if (!strncmp(argv[1],"init",4)) {
 124 #if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
 125                 fsl_diu_clear_screen();
 126                 drv_video_init();
 127 #else
 128                 mpc8610hpcd_diu_init();
 129 #endif
 130         } else {
 131                 addr = simple_strtoul(argv[1], NULL, 16);
 132                 fsl_diu_clear_screen();
 133                 fsl_diu_display_bmp((unsigned char *)addr, 0, 0, 0);
 134         }
 135
 136         return 0;
 137 }
 138
 139 U_BOOT_CMD(
 140         diufb, CONFIG_SYS_MAXARGS, 1, mpc8610diu_init_show_bmp,
 141         "diufb - Init or Display BMP file\n",
 142         "init\n    - initialize DIU\n"
 143         "addr\n    - display bmp at address 'addr'\n"
 144         );
 145
 146
 147 #if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
 148
 149 /*
 150  * The Graphic Device
 151  */
 152 GraphicDevice ctfb;
 153 void *video_hw_init(void)
 154 {
 155         GraphicDevice *pGD = (GraphicDevice *) &ctfb;
 156         struct fb_info *info;
 157
 158         mpc8610hpcd_diu_init();
 159
 160         /* fill in Graphic device struct */
 161         sprintf(pGD->modeIdent,
 162                 "%dx%dx%d %ldkHz %ldHz",
 163                 xres, yres, 32, 64, 60);
 164
 165         pGD->frameAdrs = (unsigned int)fsl_fb_open(&info);
 166         pGD->winSizeX = xres;
 167         pGD->winSizeY = yres - info->logo_height;
 168         pGD->plnSizeX = pGD->winSizeX;
 169         pGD->plnSizeY = pGD->winSizeY;
 170
 171         pGD->gdfBytesPP = 4;
 172         pGD->gdfIndex = GDF_32BIT_X888RGB;
 173
 174         pGD->isaBase = 0;
 175         pGD->pciBase = 0;
 176         pGD->memSize = info->screen_size - info->logo_size;
 177
 178         /* Cursor Start Address */
 179         pGD->dprBase = 0;
 180         pGD->vprBase = 0;
 181         pGD->cprBase = 0;
 182
 183         return (void *)pGD;
 184 }
 185
 186 void video_set_lut (unsigned int index, /* color number */
 187                     unsigned char r,    /* red */
 188                     unsigned char g,    /* green */
 189                     unsigned char b     /* blue */
 190                     )
 191 {
 192         return;
 193 }
 194
 195 #endif /* defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) */
 196
 197 #endif /* CONFIG_FSL_DIU_FB */