ads5121_diu.c 3.8 KB

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  1. /*
  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. #include <common.h>
  26. #include <command.h>
  27. #include <asm/io.h>
  28. #ifdef CONFIG_FSL_DIU_FB
  29. #include "../freescale/common/pixis.h"
  30. #include "../freescale/common/fsl_diu_fb.h"
  31. #if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
  32. #include <devices.h>
  33. #include <video_fb.h>
  34. #endif
  35. extern unsigned int FSL_Logo_BMP[];
  36. static int xres, yres;
  37. void diu_set_pixel_clock(unsigned int pixclock)
  38. {
  39. volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
  40. volatile clk512x_t *clk = &immap->clk;
  41. volatile unsigned int *clkdvdr = &clk->scfr[0];
  42. unsigned long speed_ccb, temp, pixval;
  43. speed_ccb = get_bus_freq(0) * 4;
  44. temp = 1000000000/pixclock;
  45. temp *= 1000;
  46. pixval = speed_ccb / temp;
  47. debug("DIU pixval = %lu\n", pixval);
  48. /* Modify PXCLK in GUTS CLKDVDR */
  49. debug("DIU: Current value of CLKDVDR = 0x%08x\n", *clkdvdr);
  50. temp = *clkdvdr & 0xFFFFFF00;
  51. *clkdvdr = temp | (pixval & 0xFF);
  52. debug("DIU: Modified value of CLKDVDR = 0x%08x\n", *clkdvdr);
  53. }
  54. int ads5121_diu_init(void)
  55. {
  56. unsigned int pixel_format;
  57. xres = 1024;
  58. yres = 768;
  59. pixel_format = 0x88883316;
  60. return fsl_diu_init(xres, pixel_format, 0,
  61. (unsigned char *)FSL_Logo_BMP);
  62. }
  63. int ads5121diu_init_show_bmp(cmd_tbl_t *cmdtp,
  64. int flag, int argc, char *argv[])
  65. {
  66. unsigned int addr;
  67. if (argc < 2) {
  68. printf("Usage:\n%s\n", cmdtp->usage);
  69. return 1;
  70. }
  71. if (!strncmp(argv[1], "init", 4)) {
  72. #if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
  73. fsl_diu_clear_screen();
  74. drv_video_init();
  75. #else
  76. return ads5121_diu_init();
  77. #endif
  78. } else {
  79. addr = simple_strtoul(argv[1], NULL, 16);
  80. fsl_diu_clear_screen();
  81. fsl_diu_display_bmp((unsigned char *)addr, 0, 0, 0);
  82. }
  83. return 0;
  84. }
  85. U_BOOT_CMD(
  86. diufb, CONFIG_SYS_MAXARGS, 1, ads5121diu_init_show_bmp,
  87. "diufb init | addr - Init or Display BMP file\n",
  88. "init\n - initialize DIU\n"
  89. "addr\n - display bmp at address 'addr'\n"
  90. );
  91. #if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
  92. /*
  93. * The Graphic Device
  94. */
  95. GraphicDevice ctfb;
  96. void *video_hw_init(void)
  97. {
  98. GraphicDevice *pGD = (GraphicDevice *) &ctfb;
  99. struct fb_info *info;
  100. if (ads5121_diu_init() < 0)
  101. return;
  102. /* fill in Graphic device struct */
  103. sprintf(pGD->modeIdent, "%dx%dx%d %ldkHz %ldHz",
  104. xres, yres, 32, 64, 60);
  105. pGD->frameAdrs = (unsigned int)fsl_fb_open(&info);
  106. pGD->winSizeX = xres;
  107. pGD->winSizeY = yres - info->logo_height;
  108. pGD->plnSizeX = pGD->winSizeX;
  109. pGD->plnSizeY = pGD->winSizeY;
  110. pGD->gdfBytesPP = 4;
  111. pGD->gdfIndex = GDF_32BIT_X888RGB;
  112. pGD->isaBase = 0;
  113. pGD->pciBase = 0;
  114. pGD->memSize = info->screen_size - info->logo_size;
  115. /* Cursor Start Address */
  116. pGD->dprBase = 0;
  117. pGD->vprBase = 0;
  118. pGD->cprBase = 0;
  119. return (void *)pGD;
  120. }
  121. /**
  122. * Set the LUT
  123. *
  124. * @index: color number
  125. * @r: red
  126. * @b: blue
  127. * @g: green
  128. */
  129. void video_set_lut
  130. (unsigned int index, unsigned char r, unsigned char g, unsigned char b)
  131. {
  132. return;
  133. }
  134. #endif /* defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) */
  135. #endif /* CONFIG_FSL_DIU_FB */