A13-OLinuXino-MICRO - custom kernel compiling without unresoved symbols

[MBR]

Hi,

I recently successfully compiled custom 3.4.79 kernel for A13-OLinuXino-MICRO and found it somewhat tricky, because there are some non-obvious options required to be set. Withou them the kernel will compile, but the final linking will fail miserably with unresolved symbols beginning with axp_gpio_. The trick is to enable support for AXP209 battery charger and voltage regulator chip, although the MICRO board does not have one. The required options are nicely described on SUNXI Wiki in http://linux-sunxi.org/Advanced_Power_Management.

Hope that this will help, because I googled the solution for hours and didn't found simple answer, so I had to solve it myself by inspecting the offending unresolved symbols and required options in kernel source.

[yoann_q]

hi

i think i report the same problem on A10S here https://www.olimex.com/forum/index.php?topic=3216.0, i'll try the same workaround as you and activate the AXP209 support this evening   

[yoann_q]

thanks it works !