We merged your patched U-Boot with the bugfix “physical link not established reliably” into our U-Boot.
On one single TK1 SOM assembled into the Apalis Eval Board when I execute pci enum
the first time an error occurs and u-boot resets. When I abort the autoboot after the reset and execute pci enum
again another error occurs.
Apalis TK1 # pci enum
data abort
pc : [<fff423e8>] lr : [<fff6f9b0>]
reloc pc : [<801133e8>] lr : [<801409b0>]
sp : fda11840 ip : 00000001 fp : fda21258
r10: 00000000 r9 : fda1eee0 r8 : fda1f0b0
r7 : fda213c4 r6 : fffaaa74 r5 : fff96da8 r4 : fffaf16c
r3 : 7009f000 r2 : 1c880077 r1 : fff96da8 r0 : fffaaa74
Flags: NzCv IRQs off FIQs off Mode SVC_32
Resetting CPU ...
resetting ...
U-Boot 2016.11-00119-g992e9f344b (Aug 23 2017 - 11:10:22 +0200)
TEGRA124
DRAM: 2 GiB
MMC: Tegra SD/MMC: 0, Tegra SD/MMC: 1, Tegra SD/MMC: 2
In: serial
Out: serial
Err: serial
Model: Toradex Apalis TK1 2GB V1.1A, Serial# 02911982
Initializing leds...
Net: No ethernet found.
Hit any key to stop autoboot: 0
Apalis TK1 # pci enum
ERROR: failed to enable LDO9: -22
at board/toradex/apalis-tk1/apalis-tk1.c:221/tegra_pcie_board_port_reset()
ERROR: failed to enable LDO9: -22
at board/toradex/apalis-tk1/apalis-tk1.c:221/tegra_pcie_board_port_reset()
ERROR: failed to enable LDO9: -22
at board/toradex/apalis-tk1/apalis-tk1.c:221/tegra_pcie_board_port_reset()
ERROR: failed to enable LDO9: -22
On the same SOM assembled into our custom baseboard I had a slightly different behaviour. When I execute pci enum
the first time an error occurs and u-boot resets. When I abort the autoboot after the reset and execute pci enum
again the pci devices can be detected and listed as usual.
Apalis TK1 # pci
No such bus
Apalis TK1 # pci enum
data abort
pc : [<fff423e8>] lr : [<fff6f9b0>]
reloc pc : [<801133e8>] lr : [<801409b0>]
sp : fda11840 ip : 00000001 fp : fda21258
r10: 00000000 r9 : fda1eee0 r8 : fda1f0b0
r7 : fda213c4 r6 : fffaaa74 r5 : fff96da8 r4 : fffaf16c
r3 : 7009f000 r2 : 16880077 r1 : fff96da8 r0 : fffaaa74
Flags: NzCv IRQs off FIQs off Mode SVC_32
Resetting CPU ...
resetting ...
U-Boot 2016.11-00119-g992e9f344b (Aug 23 2017 - 11:10:22 +0200)
TEGRA124
DRAM: 2 GiB
MMC: Tegra SD/MMC: 0, Tegra SD/MMC: 1, Tegra SD/MMC: 2
In: serial
Out: serial
Err: serial
Model: Toradex Apalis TK1 2GB V1.1A, Serial# 02911982
Initializing leds...
Net: No ethernet found.
Hit any key to stop autoboot: 0
Apalis TK1 # pci enum
Apalis TK1 # pci
Scanning PCI devices on bus 0
BusDevFun VendorId DeviceId Device Class Sub-Class
_____________________________________________________________
00.02.00 0x10de 0x0e13 Bridge device 0x04
Apalis TK1 #
Do you have an idea what the root cause of this behaviour could be?