U-Boot 2020.01-rc4 - PCI support missing on Trimslice Pro

[Stuart Winter]

Hello

I've built U-Boot 2020.01-rc4 and found that the PCI bus isn't recognised
on my Trimslice Pro.
This is using the 'trimslice' default U-Boot configuration file ('make trimslice_config')

I tried 2019.04 and a couple of other older versions, just in case - but
nothing recent works.

Is there anything I can do to debug this?  The configuration file looks
okay, in that the Tegra PCI support is selected.

Thanks
s.

U-Boot 2020.01-rc4 (Dec 06 2019 - 14:08:52 +0000)

SoC: tegra20
Model: Compulab TrimSlice board
Board: Compulab Trimslice
DRAM:  1 GiB
MMC:   sdhci at c8000000: 1, sdhci at c8000600: 0
Loading Environment from SPI Flash... SF: Detected w25q80bl with page size
256 Bytes, erase size 4 KiB, total 1 MiB
*** Warning - bad CRC, using default environment

In:    serial
Out:   serial
Err:   serial
Net:   No ethernet found.
Hit any key to stop autoboot:  0
Tegra20 (TrimSlice) #
Tegra20 (TrimSlice) # pci
No such bus
Tegra20 (TrimSlice) #


Compare with the U-Boot from the vendor (Compulab):


U-Boot 2012.04.01-1.02 (Feb 11 2013 - 16:11:37)

TEGRA2
Board: Compulab Trimslice
DRAM:  1 GiB
MMC:   Tegra2 SD/MMC: 0, Tegra2 SD/MMC: 1
SF: Detected W25Q80BL with page size 4 KiB, total 1 MiB
In:    serial
Out:   serial
Err:   serial
Net:   PCI device RTL8169#0: unknown chip version, assuming RTL-8169
PCI device: TxConfig = 0x2B1000C0
RTL8169#0
Hit any key to stop autoboot:  0
Tegra2 (TrimSlice) #
Tegra2 (TrimSlice) # pci
Scanning PCI devices on bus 0
BusDevFun  VendorId   DeviceId   Device Class       Sub-Class
_____________________________________________________________
00.00.00   0x10de     0x0bf0     Bridge device           0x04
Tegra2 (TrimSlice) #


-- 
Stuart Winter