[coreboot] Not able to compile drivers

[chinmoy ghosh]

Thanks for reply.

Requirement :
I am working for Intel Apollo Lake SOC.
I need to enable a power chip which sits on I2c bus  and reset the chip via
gpio pin .So i need to write a slave driver to access the chip.

Static Analysis by me  :
Before that , i2c master should be there .  I feel lpss_i2c.c can help the
same.
I called the lpss_i2c_init function from
external/coreboot/payloads/libpayload/arch/x86/main.c and compiling with
libpayload.a .
let me know if i am right upto this ?. if it is then following questions
are :
1) how to access  GPIO register to ser one or zero
2) how to do i2c slave write for that chip ? any api for that ?


Regards
Chinmoy


On Fri, Nov 17, 2017 at 2:04 PM, Paul Menzel <
paulepanter at users.sourceforge.net> wrote:

> Dear Chinmoy,
>
>
> Am Donnerstag, den 16.11.2017, 17:48 +0530 schrieb chinmoy ghosh:
> > I am new to coreboot.
>
> Welcome!
>
> > I am able to clone the coreboot and able to compile for x86 arch.
> > I am not able to select any drivers in the menuconfig. I want compile
> some
> > coreboot/src/drivers/i2c drivers.
>
> I assume these are dependent on the board. Please elaborate on your
> goal, that means what I2C driver do you need, and what board do you
> work on, and give all the necessary details, like what commit hash you
> use.
>
>
> Thanks,
>
> Paul
> --
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>
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