forecast: New version Uboot

forecast , imagine and recommend:

1 Support boot from SD/MMC card, boot from USB disk (include USB flash disk, USB SD/MMC card reader, USB hard dirver), boot from SATA disk, boot from SATA CDROM, boot from USB CDROM
When turn on the equipment, if a SD/MMC card has been inserted, and in the SD/MMC the first partition is a Linux kernel system's mirror, or the SD/MMC card's active partition is EXT2/3/4 or Yaffs2 flie system and have a Linux kernel system, will boot system from the SD/MMC card
2 If boot from usb disk, SATA disk, sata cdrom and usb cdrom, will be identical than boot from SD/MMC card.
3 Support multiple system to boot on the internal NAND flash (or eMMC), and when turn on the equipment, allow user to choose which operating system will be started.
4 The information (The configuration file) of multi system boot, maybe will use the "MISC" partition on the internal NAND flash (or eMMC).
5 Support multiple operating system choice menu when turn on the equipment (If the equipment have multiple operating system on the internal NAND flash (or eMMC))
6 Support black and white 2 colors display.(for multiple operating system choice menu)
7 Support MCU, RGB, TTL, LVDS interface of LCD screen.
8 Support Display port, HDMI (or DVI), VGA video output port for display.
When user turn on the equipment, if the equipment will use Display port, HDMI (or DVI) or VGA to connect a monitor, "Uboot" will use DDC(Direct Digital Control) or AUX channel on Displayport to test and distinguish the monitor, and use the monitor to display at priority.
9 Support USB keyboard, USB mouse and infrared remoter.
(When use the multiple operating system choice menu, the mouse wheel can move the selection cursor up or down.The left button on mouse is confirm key, identical to "Enter" key on keyboard.)
10 About the multiple operating system choice menu: Press Volume+ or Volume- button (on the equipment) to move the selection cursor up or down, press the Power button (on the equipment) to enter (confirm).
11 In future, nearly all of low-grade tabletpc, set-top-box, ARM or MIPS computer (for office use or cash register), etc.,will use the newest version Uboot as the bootloader.


Multi-system choosing menu when the equipment turn on: