[PATCH 0/5] i2c: aspeed: Add buffer and DMA modes support

Jae Hyun Yoo jae.hyun.yoo at linux.intel.com
Fri Oct 11 05:14:54 AEDT 2019


Hello Cédric,

> I just pushed models adding support for the pool buffer mode and DMA mode
> to the I2C controller and did some tests on these QEMU Aspeed machines :
> 
>    palmetto (AST2400) : BYTE + BUFFER
>    romulus  (AST2500) : BYTE + BUFFER + DMA (with a custom DT)
>    tacoma   (AST2600) : BYTE
> 
> Looks good on the QEMU side.

Thanks a lot for sharing the result, and for the QEMU models
implementation as well.

I'll submit ast2600 dts patch for the buffer mode support later into
OpenBMC linux tree if it gets accepted from upstream. I didn't include
that because upstream tree doesn't have I2C bus nodes yet in ast2600
dts.

Thanks,

Jae



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