After upgrading my sabre lite board to the latest snapshot,
BOOTARM.EFI causes the machine to reset. Building the bootloader with
-msoft-float, however, gives a working binary. Perhaps this is a
result of the recent armv7 float ABI change?
Below is a console log of the non-working BOOTARM.EFI:
U-Boot 2017.07-28647-g66aadfb (Jan 24 2018 - 15:46:14 -0800), Build:
jenkins-uboot_v2017.07-66
CPU: Freescale i.MX6Q rev1.2 at 792 MHz
Reset cause: WDOG
Board: nitrogen6x
I2C: ready
DRAM: 1 GiB
MMC: FSL_SDHC: 0, FSL_SDHC: 1
SF: Detected sst25vf016b with page size 256 Bytes, erase size 4 KiB, total 2 MiB
Display: hdmi:1280x720M@60 (1280x720)
In: serial
Out: serial
Err: serial
Net: Micrel ksz9021 at 6
FEC [PRIME], usb_ether
Hit any key to stop autoboot: 0
AHCI 0001.0300 32 slots 1 ports 3 Gbps 0x1 impl SATA mode
flags: ncq stag pm led clo only pmp pio slum part
SATA Device Info:
S/N: CVSC2251009T080D
Product model number: INTEL SSDMAEMC080G2
Firmware version: 2CV102M3
Capacity: 156301488 sectors
Device 0: Model: INTEL SSDMAEMC080G2 Firm: 2CV102M3 Ser#: CVSC2251009T080D
Type: Hard Disk
Supports 48-bit addressing
Capacity: 76319.0 MB = 74.5 GB (156301488 x 512)
... is now current device
Scanning sata 0:1...
reading /imx6q-sabrelite.dtb
43023 bytes read in 6 ms (6.8 MiB/s)
Found EFI removable media binary efi/boot/bootarm.efi
reading efi/boot/bootarm.efi
87652 bytes read in 8 ms (10.4 MiB/s)
## Starting EFI application at 12000000 ...
Scanning disks on usb...
Scanning disks on mmc...
MMC: no card present
mmc_init: -123, time 1
MMC: no card present
mmc_init: -123, time 1
MMC Device 2 not found
MMC Device 3 not found
Scanning disks on sata...
Found 5 disks
>> OpenBSD/armv7 BOOTARM 1.1
undefined instruction
pc : [<4e31a874>] lr : [<4f32ac70>]
reloc pc : [<15bec874>] lr : [<16bfcc70>]
sp : 4f32ac50 ip : 4e213000 fp : 4f32ac60
r10: 18000000 r9 : 00000065 r8 : 4e327040
r7 : 4e213000 r6 : 4f32ac70 r5 : 4e2131f0 r4 : 4f32ae60
r3 : 00000000 r2 : fffffff0 r1 : 00000200 r0 : 4f32ac70
Flags: Nzcv IRQs off FIQs off Mode SVC_32
Resetting CPU ...
resetting ...
