Re: [PATCH] mv64361: Add dummy gigabit ethernet PHY access registers

[BALATON Zoltan <balaton@eik.bme.hu>]

On Mon, 5 Jun 2023, BALATON Zoltan wrote:
> We don't emulate the gigabit ethernet part of the chip but the MorphOS
> driver accesses these and expects to get some valid looking result
> otherwise it hangs. Add some minimal dummy implementation to avoid rhis.
>
> Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
> ---
> This is only used by MorphOS on pegasos2 so most likely could go via
> the ppc queue.

Ping?

Regards,
BALATON Zoltan

> hw/pci-host/mv64361.c | 6 ++++++
> hw/pci-host/mv643xx.h | 3 +++
> 2 files changed, 9 insertions(+)
>
> diff --git a/hw/pci-host/mv64361.c b/hw/pci-host/mv64361.c
> index 19e8031a3f..01bd8c887f 100644
> --- a/hw/pci-host/mv64361.c
> +++ b/hw/pci-host/mv64361.c
> @@ -541,6 +541,12 @@ static uint64_t mv64361_read(void *opaque, hwaddr addr, unsigned int size)
>             }
>         }
>         break;
> +    case MV64340_ETH_PHY_ADDR:
> +        ret = 0x98;
> +        break;
> +    case MV64340_ETH_SMI:
> +        ret = BIT(27);
> +        break;
>     case MV64340_CUNIT_ARBITER_CONTROL_REG:
>         ret = 0x11ff0000 | (s->gpp_int_level << 10);
>         break;
> diff --git a/hw/pci-host/mv643xx.h b/hw/pci-host/mv643xx.h
> index cd26a43f18..f2e1baea88 100644
> --- a/hw/pci-host/mv643xx.h
> +++ b/hw/pci-host/mv643xx.h
> @@ -656,6 +656,9 @@
> /*        Ethernet Unit Registers       */
> /****************************************/
>
> +#define MV64340_ETH_PHY_ADDR                                        0x2000
> +#define MV64340_ETH_SMI                                             0x2004
> +
> /*******************************************/
> /*          CUNIT  Registers               */
> /*******************************************/
>