[PATCH 0/5] Add PCIe and its clock support for mt7622

[Henry Yen]

On Mon, 2020-08-10 at 18:47 +0800, Henry Yen wrote:

> 
> Chuanjia Liu schrieb am 10.08.20 um 10:17:
> 
> > This series patchs add PCIe/clock support for MT7622
> 
> > 
> 
> > change node:
> 
> > v1:add PCIe support for MT7622
> 
> > Chuanjia Liu (5):
> 
> >    clk: mediatek: add pciesys support for MT7622 SoC
> 
> >    arm: dts: mediatek: add pciesys support for MT7622 SoC
> 
> >    PCI: mediatek: Add PCIe support for MT7622
> 
> >    arm: dts: mediatek: add PCIe node for MT7622
> 
> >    configs: mt7622: add PCIe controller related configs
> 
> Hi,
> 
>  
> 
> Tested on bananapi-r64 with an mt7612 in slot cn8 and compex wle900vx
> in cn25.
> 
>  
> 
> BPI-R64> pci enum
> 
> PCI: Failed autoconfig bar 10
> 
> PCI: Failed autoconfig bar 10
> 
> BPI-R64> pci 0
> 
> Scanning PCI devices on bus 0
> 
> BusDevFun  VendorId   DeviceId   Device Class       Sub-Class
> 
> _____________________________________________________________
> 
> 00.00.00   0x14c3     0x3258     Bridge device           0x04
> 
> 00.01.00   0x14c3     0x3258     Bridge device           0x04
> 
> BPI-R64> pci 1
> 
> Scanning PCI devices on bus 1
> 
> BusDevFun  VendorId   DeviceId   Device Class       Sub-Class
> 
> _____________________________________________________________
> 
> 01.00.00   0x168c     0x003c     Network controller      0x80
> 
> BPI-R64>
> 
>  
> 
> if i swap the cards
> 
>  
> 
> BPI-R64> pci enum
> 
> Port1 link down
> 
> PCI: Failed autoconfig bar 10
> 
> BPI-R64> pci 0
> 
> Scanning PCI devices on bus 0
> 
> BusDevFun  VendorId   DeviceId   Device Class       Sub-Class
> 
> _____________________________________________________________
> 
> 00.00.00   0x14c3     0x3258     Bridge device           0x04
> 
> BPI-R64> pci 1
> 
> Scanning PCI devices on bus 1
> 
> BusDevFun  VendorId   DeviceId   Device Class       Sub-Class
> 
> _____________________________________________________________
> 
> 01.00.00   0x14c3     0x7612     Network controller      0x80
> 
> BPI-R64>
> 
>  
> 
> note that there are pcie-HW-issues on my boards revision(power
> limitation and missing capacitors on tx-lines) which may cause the
> different Pcie-Ids for mt7612 and the class of the compex-card. sorry
> had not seen this before on tests with Steven
> 
>  
> 
> maybe anyone can test the Patches with a fixed board.
> 
>  
> 
> regards Frank
> 
Hi Frank,

We've verified the patchset on a fixed board.

The result shows that no matter how I swap the cards, it all works
fine :)

Here are the logs:

=========================================
MT7622> pci enum
PCI: Failed autoconfig bar 10
PCI: Failed autoconfig bar 10
MT7622> pci 0
Scanning PCI devices on bus 0
BusDevFun  VendorId   DeviceId   Device Class       Sub-Class
_____________________________________________________________
00.00.00   0x14c3     0x3258     Bridge device           0x04
00.01.00   0x14c3     0x3258     Bridge device           0x04
MT7622> pci 1
Scanning PCI devices on bus 1
BusDevFun  VendorId   DeviceId   Device Class       Sub-Class
_____________________________________________________________
01.00.00   0x14c3     0x7603     Network controller      0x80
MT7622> pci 2
Scanning PCI devices on bus 2
BusDevFun  VendorId   DeviceId   Device Class       Sub-Class
_____________________________________________________________
02.00.00   0x14c3     0x7662     Network controller      0x80

---------------------------------------

MT7622> pci enum
PCI: Failed autoconfig bar 10
PCI: Failed autoconfig bar 10
MT7622> pci 0
Scanning PCI devices on bus 0
BusDevFun  VendorId   DeviceId   Device Class       Sub-Class
_____________________________________________________________
00.00.00   0x14c3     0x3258     Bridge device           0x04
00.01.00   0x14c3     0x3258     Bridge device           0x04
MT7622> pci 1
Scanning PCI devices on bus 1
BusDevFun  VendorId   DeviceId   Device Class       Sub-Class
_____________________________________________________________
01.00.00   0x14c3     0x7662     Network controller      0x80
MT7622> pci 2
Scanning PCI devices on bus 2
BusDevFun  VendorId   DeviceId   Device Class       Sub-Class
_____________________________________________________________
02.00.00   0x14c3     0x7603     Network controller      0x80

=========================================

Thanks !

Sincerely,
Henry

>