Editing A13 tablet

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* Board model: TW_A0910_16B_V1.1_0830 (silkscreened). The id tag is searchable as "TW_A0910"
 
* Board model: TW_A0910_16B_V1.1_0830 (silkscreened). The id tag is searchable as "TW_A0910"
 
* Manufacturing: 2013 08 30 (silkscreened)
 
* Manufacturing: 2013 08 30 (silkscreened)
* Screen size: 9" , 800x480
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* touch controller: gslx680 - https://github.com/jabjoe/sunxi-gslx680
* touch controller: gslx680 - https://github.com/jabjoe/sunxi-gslx680  
 
** Extracted kernel module (.ko), and firmware(.fw)[really just a register values for settings] from driver: https://jii.moe/4kLOCPMVl.tar.gz / sha256sum: 29d2218ba11ef76dc51c5f949a2c53e7f2ce1677b28782178d30ba1fab1c027e
 
 
* wifi: Realtek RTL8188 - has been in linux kernel forever at this point
 
* wifi: Realtek RTL8188 - has been in linux kernel forever at this point
* Power management: AXP209 - drivers should already be in linux-arm-kernel / datenblatt: https://linux-sunxi.org/AXP209
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* Power management: AXP209 - https://linux-sunxi.org/AXP209
 
* Flash: Hynix
 
* Flash: Hynix
 
* RAM: 256X16 DDR3 Generic (4GB)
 
* RAM: 256X16 DDR3 Generic (4GB)
  
 
===Flashing===
 
===Flashing===
* FEL mode procedure
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* Figure out how to enter FEL mode.
** Detach all wiring.
 
** Hold volume and power for about 3 secs. Screen will remain black, but green light should turn on.
 
** Connecting USB and running lsusb should give you a device with an ID of 1f3a:efe8
 
** Build sunxi-tools and "$ ./sunxi-fel ver" should return a string like: AWUSBFEX soc=00001625(A13) 00000001 ver=0001 44 08 scratchpad=00007e00 00000000 00000000
 
 
* No obviously exposed UART/JTAG - might be tied to uSD slot
 
* No obviously exposed UART/JTAG - might be tied to uSD slot
* Entering FEL is part of the boot process (handled by the masked BROM): https://linux-sunxi.org/Boot_Process
 
** https://linux-sunxi.org/FEL/USBBoot
 
** The BROM, proper: https://linux-sunxi.org/BROM
 
* LiveSuit factory flashing software (Linux, OSX, Win) for Allwinner: http://linux-sunxi.org/LiveSuit
 
* 'PhoenixSuit' (may be Windows only): https://github.com/linux-sunxi/sunxi-livesuite
 
  
===Bootloader & Onboard Flash===
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===Bootloader===
 
* A13 is now mainlined on U-boot
 
* A13 is now mainlined on U-boot
* Caveat is that to run completely from the NAND Flash (MTD device), you need some patches
 
** MTD device driver as well for using the onboard flash directly
 
* VERY IMPORTANT info over here on how to do that: https://linux-sunxi.org/Installing_to_NAND
 
** nand-part is used to build the descriptor. Remember to keep partitions for the chain loaders.
 
  
 
===Kernel===
 
===Kernel===
 +
* TODO
 
* Reusing older sources: https://linux-sunxi.org/Linux_Kernel [most likely not necessary to reuse, because of Mali400 being pretty opensource now]
 
* Reusing older sources: https://linux-sunxi.org/Linux_Kernel [most likely not necessary to reuse, because of Mali400 being pretty opensource now]
  
===Debian on A13 (sun5i)===
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===Debian bootstrap===
* Much info https://wiki.debian.org/InstallingDebianOn/Allwinner
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* TODO

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