Hi,
On 04-04-15 13:27, Paul Kocialkowski wrote:
This series adds support for every i2c controller found on
sun4i/sun5i/sun6i/sun7i/sun8i platforms and shouldn't break support for Marvell
platforms (orion5x, kirkwood, armada xp) the driver was originally written for.
Regarding sunxi, I double-checked that this doesn't conflict with
VIDEO_LCD_PANEL_I2C.
I would be interested in having this tested on sun8i (A23), since I changed TWI0
muxing (to PH2-PH3 instead of PB0-PB1), according to the user manual and what
is being done on the upstream Linux kernel. I2C was either not working before,
or it was being muxed correctly by the bootrom, probably to communicate with the
AXP, which luckily made it work in U-Boot too, since the I/O base address was
already correct.
We do not use i2c0 on A23, the pmic is hooked up to the RSB bus there which
shares
its pins with the r_i2c controller (the i2c controller in the prcm unit).
My use case here is that I'm writing a slave-side bitbang i2c implementation
(with an Arduino) for a school project, using a Cubieboard2 as master and
U-Boot as POC. However, only TWI1 was available through the expansion pins,
hence the need for this series.
Regards,
Hans
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