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

[Manivannan Sadhasivam]

On Fri, Apr 10, 2020 at 11:55:57AM +0200, Marek Vasut wrote:
> 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 ?

Sorry, it turned out to be a DT issue. My script was not updated when I switched
to upstream bootloader. This patch works perfectly on both old and new boards.

Feel free to add,

Tested-by: Manivannan Sadhasivam <manivannan.sadhasivam at linaro.org>

Thanks,
Mani