Re: [SPAM] [PATCH v3 00/11] support I2C for AST2700

[Troy Lee <leetroy@gmail.com>]

Hi Cédric,

On Wed, Sep 4, 2024 at 3:29 PM Cédric Le Goater <clg@kaod.org> wrote:
>
> Hello Jamin,
>
> > Just want you to know that I and Troy are working on the following tasks for AST2700.
> > 1. Support boot from bootmcu(riscv32) instead of u-boot(Cortex-A35)
>
> Oh nice. This is a good topic for heterogeneous machines !

The basic model for bootmcu(risc-v) is working now, but we're looking for a way
to integrate sram/mmio/dram together.  The ivshmem requires PCI, it might be
too complicate for our use case.  There is an ivshmem-flat probably more
sutiable for us.

[PATCH 0/4] Add ivshmem-flat device - Gustavo Romero (kernel.org)
https://lore.kernel.org/qemu-devel/20231127052024.435743-1-gustavo.romero@linaro.org/

>
> > 2. Support GPIO.
> >
> > After we finish above tasks, we will upstream QEMU and send our patches.
>
>
> There is also this issue we discussed privately on SPI write
> transactions failing on the AST27000. It looked related to
> aspeed_smc_do_snoop() but we don't have a good fix yet.
>
> When time permits, could you please open a gitlab issue with
> your findings and logs, so that we don't forget.
>
>
> Thanks,
>
> C.
>
>
Thanks,
Troy Lee