03-22-2016, 12:49 AM
(03-08-2016, 01:12 AM)Milo Kim Wrote:(03-08-2016, 12:51 AM)tllim Wrote:(03-07-2016, 11:38 PM)Milo Kim Wrote: Hi Andre,
Thanks for detailed description. So Linux kernel can't access AXP803 at this moment. It means all LDO & BUCKs are controlled in boot code and are never changed at run time.
In other words, regulator driver should expose all them as statically - 'regulator-fixed' for regulator consumers.
Another problem is no way to handle AXP interrupts (like charger) in Linux because IRQ pin will be de-asserted by writing '1' to status bit.
Hi Pine64 team,
Do you have any plan to change PMIC interface from RSB to I2C (TWI) later?
Best regards,
Milo
@milo, change an existing interface is serious decision and cannot be make lightly. This due to such change will affect existing board operation and OS. Unless there is a well plan decision, we will not change PMIC interface from RSB to I2C. I can check with Allwinner on RSB information release but may takes some time.
... TL Lim
Fully understood. Thanks for your help.
Best regards,
Milo
@milo, here is the RSB source code link the Allwinner release for A83 which is same for A64, hopefully this help: https://github.com/allwinner-zh/bootload...dram/rsb.c