Something

  powerON(POWER_ALL);
  videoSetMode(MODE_FB0);
  vramSetBankA(VRAM_A_LCD);

  // Set up the sub screen
  videoSetModeSub(MODE_0_2D | DISPLAY_BG0_ACTIVE);
  // vramSetBankA(VRAM_A_MAIN_BG);
  // BG0_CR = BG_MAP_BASE(31);

  // Set the colour of the font to White.
  // BG_PALETTE[255] = RGB15(31,31,31);

  // consoleInitDefault((u16*)SCREEN_BASE_BLOCK(31), (u16*)CHAR_BASE_BLOCK(0), 16);

  lcdSwap();