[Linux-stm32] [PATCH V4 00/22] ARM: dts: stm32: Repair AV96 board

[Marek Vasut]

On 4/10/20 11:00 AM, Manivannan Sadhasivam wrote:
> Hi,

Hi,

> On Tue, Apr 07, 2020 at 05:32:31PM +0200, Marek Vasut wrote:
>> On 4/6/20 9:27 AM, Manivannan Sadhasivam wrote:
>>> Hi,
>>
>> Hi,
>>
>>> On Wed, Apr 01, 2020 at 03:22:15PM +0200, Marek Vasut wrote:
>>>> The AV96 board device tree is completely broken and does not match the
>>>> hardware. This series fixes it up.
>>>>
>>>> Marek Vasut (22):
>>>>   ARM: dts: stm32: Add alternate pinmux for ethernet RGMII
>>>>   ARM: dts: stm32: Repair ethernet operation on AV96
>>>>   ARM: dts: stm32: Add missing ethernet PHY reset on AV96
>>>>   ARM: dts: stm32: Add missing ethernet PHY skews on AV96
>>>
>>> Ethernet works fine with cold boot but after warm reboot it fails with below
>>> message,
>>>
>>> [   18.192842] stm32-dwmac 5800a000.ethernet eth0: no phy at addr -1
>>> [   18.197539] stm32-dwmac 5800a000.ethernet eth0: stmmac_open: Cannot attach to PHY (err)
>>
>> Try this patch:
>>
> 
> [   17.270826] stm32-dwmac 5800a000.ethernet eth0: no phy at addr -1
> [   17.275519] stm32-dwmac 5800a000.ethernet eth0: stmmac_open: Cannot attach to PHY (err)
> 
> It doesn't work. Sorry, I don't have much time to dig into this issue so
> I'll leave it up to you :)

I see, it does work on the new board, so I don't really know what to do
here. Maybe we should just not support the old prototype board ?