[U-Boot] efi_loader triggers fec_mxc messages when booting off mmc

[Jonathan Gray]

After the recent changes to add SimpleNetworkProtocol to efi_loader
when booting off mmc via an efi payload that doesn't use
SimpleNetworkProtocol U-Boot's fec_mxc driver will now display
various "error frame" messages.

U-Boot SPL 2017.11-rc1-00277-g7b342d8c5d (Oct 15 2017 - 12:55:50)
Trying to boot from MMC1


U-Boot 2017.11-rc1-00277-g7b342d8c5d (Oct 15 2017 - 12:55:50 +1100)

CPU:   Freescale i.MX6Q rev1.5 996 MHz (running at 792 MHz)
CPU:   Extended Commercial temperature grade (-20C to 105C) at 32C
Reset cause: WDOG
Board: MX6 Cubox-i
DRAM:  2 GiB
MMC:   FSL_SDHC: 0
No panel detected: default to HDMI
Display: HDMI (1024x768)
In:    serial
Out:   serial
Err:   serial
Net:   FEC
Hit any key to stop autoboot:  0
switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0:1...
reading /imx6q-cubox-i.dtb
37669 bytes read in 20 ms (1.8 MiB/s)
Found EFI removable media binary efi/boot/bootarm.efi
Scanning disks on usb...
Scanning disks on mmc...
MMC Device 1 not found
MMC Device 2 not found
MMC Device 3 not found
Scanning disks on sata...
Found 6 disks
reading efi/boot/bootarm.efi
67372 bytes read in 32 ms (2 MiB/s)
## Starting EFI application at 12000000 ...
>> OpenBSD/armv7 BOOTARM 1.0
error frame: 0x8f57ec40 0x00003d74
error frame: 0x8f57ec40 0x00007079
error frame: 0x8f57ec40 0x00006964
error frame: 0x8f57ec40 0x00006f6f
error frame: 0x8f57ec40 0x0000726f
error frame: 0x8f57ec40 0x00002074
error frame: 0x8f57ec40 0x00006f6f
boot> error frame: 0x8f57ec40 0x00007465
error frame: 0x8f57ec80 0x00007220
error frame: 0x8f57ec80 0x00006374
error frame: 0x8f57ec80 0x00007261
error frame: 0x8f57ec80 0x00006f64
error frame: 0x8f57ec80 0x0000385f
error frame: 0x8f57ec80 0x00002d31
error frame: 0x8f57ec80 0x00006431
error frame: 0x8f57ec80 0x0000302d
error frame: 0x8f57ecc0 0x00003233
error frame: 0x8f57ecc0 0x00006e49
error frame: 0x8f57ecc0 0x00006e6f
error frame: 0x8f57ecc0 0x00007472
error frame: 0x8f57ecc0 0x0000622c
error frame: 0x8f57ecc0 0x00006f6c
error frame: 0x8f57ecc0 0x00003030
error frame: 0x8f57ecc0 0x00003030
error frame: 0x8f57ed00 0x0000645f
error frame: 0x8f57ed00 0x00006966
error frame: 0x8f57ed00 0x0000642f
error frame: 0x8f57ed00 0x00006274
error frame: 0x8f57ed00 0x0000746e
error frame: 0x8f57ed00 0x00006466
error frame: 0x8f57ed00 0x00006d69
error frame: 0x8f57ed00 0x00006f62
error frame: 0x8f57ed40 0x00000062
error frame: 0x8f57ed40 0x0000463d
error frame: 0x8f57ed40 0x00006461
error frame: 0x8f57ed40 0x00003336
error frame: 0x8f57ed40 0x0000383a
error frame: 0x8f57ed40 0x00007464
error frame: 0x8f57ed40 0x00007830
error frame: 0x8f57ed40 0x00003030
error frame: 0x8f57ed80 0x00006464
error frame: 0x8f57ed80 0x00003831
error frame: 0x8f57ed80 0x00003d68
error frame: 0x8f57ed80 0x00006666
error frame: 0x8f57ed80 0x00006461
error frame: 0x8f57ed80 0x00003030
error frame: 0x8f57ed80 0x00006674
error frame: 0x8f57edc0 0x00003678
error frame: 0x8f57edc0 0x00002d78
error frame: 0x8f57edc0 0x00006966
error frame: 0x8f57edc0 0x0000313d
error frame: 0x8f57edc0 0x00000030
error frame: 0x8f57edc0 0x0000657a
error frame: 0x8f57edc0 0x0000693d
error frame: 0x8f57ee00 0x00002420
error frame: 0x8f57ee00 0x0000616e
error frame: 0x8f57ee00 0x00004d55
error frame: 0x8f57ee00 0x00005241
error frame: 0x8f57ee00 0x00006574
error frame: 0x8f57ee00 0x00007261
error frame: 0x8f57ee00 0x0000203d
error frame: 0x8f57ee00 0x00007420

booting sd0a:/bsd: 3926840+164812+561396|[283058+90+521360+245040]=0x571a54
Writing to MMC(0)... done

OpenBSD/armv7 booting ...