As far as I can tell, NetBSD currently does not boot on the Beaglebone Black. Specifically, efiboot is loaded but then resets (see the console log below).
If anyone can help me, I am happy to try to test fixes to efiboot, but this is currently outside my comfort zone.
In the meantime, I suggest the attached modification to /boot/boot.cmd (and of course /boot/boot.scr which is made from it). The intent is to detect this board and boot netbsd.ub directly instead of using efiboot.
Comments welcome, especially ways to make efiboot work with the BBB.
Thanks a lot.
Cheers,
Brook
U-Boot 2019.04-00002-g31a8ae0206 (May 13 2020 - 09:26:17 -0500), Build: jenkins-github_Bootloader-Builder-139
CPU : AM335X-GP rev 2.1
I2C: ready
DRAM: 512 MiB
No match for driver 'omap_hsmmc'
No match for driver 'omap_hsmmc'
Some drivers were not found
Reset Source: Power-on reset has occurred.
RTC 32KCLK Source: External.
MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1
Loading Environment from EXT4...
** Unable to use mmc 0:1 for loading the env **
Board: BeagleBone Black
<ethaddr> not set. Validating first E-fuse MAC
BeagleBone Black:
BeagleBone: cape eeprom: i2c_probe: 0x54:
BeagleBone: cape eeprom: i2c_probe: 0x55:
BeagleBone: cape eeprom: i2c_probe: 0x56:
BeagleBone: cape eeprom: i2c_probe: 0x57:
Net: eth0: MII MODE
cpsw, usb_ether
Press SPACE to abort autoboot in 0 seconds
board_name=[A335BNLT] ...
board_rev=[00C0] ...
switch to partitions #0, OK
mmc0 is current device
SD/MMC found on device 0
switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0:1...
Found U-Boot script /boot.scr
201 bytes read in 3 ms (65.4 KiB/s)
## Executing script at 80000000
switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0:1...
95747 bytes read in 42 ms (2.2 MiB/s)
Found EFI removable media binary efi/boot/bootarm.efi
78Scanning disks on usb...
Disk usb0 not ready
Disk usb1 not ready
Disk usb2 not ready
Disk usb3 not ready
Scanning disks on mmc...
MMC Device 2 not found
MMC Device 3 not found
Found 5 disks
BootOrder not defined
171568 bytes read in 22 ms (7.4 MiB/s)
## Starting EFI application at 82000000 ...
\\-__,------,___.
\\ __,---` NetBSD/evbarm efiboot (arm)
\\ `---,_. Revision 2.13 (Thu Mar 28 08:33:33 UTC 2024)
\\-,_____,.---`
\\
\\
\\
Press return to boot now, any other key for boot prompt
booting netbsd - starting in 5 seconds. 4 seconds. 3 seconds. 2 seconds. 1 seconds. 0 seconds.
7830420+2499680+1399712 [457491+548512+596646]=0xcbfb9c
data abort
pc : [<9ff5a188>] lr : [<9ff5a1bd>]
reloc pc : [<80801188>] lr : [<808011bd>]
sp : 9df371a4 ip : 1f759000 fp : 00000000
r10: 9ff5b000 r9 : 9df38eb8 r8 : 00000000
r7 : 9ff5a408 r6 : 9ff5a3bc r5 : 000000ad r4 : 00048408
r3 : 00000000 r2 : 00000050 r1 : 9ff5a3b8 r0 : abb1aaad
Flags: NzCv IRQs off FIQs on Mode SVC_32
Code: 2010ea83 bdf0d1f5 5b04f856 b2c54068 (5025f854)
UEFI image [0x9cf05000:0x9cf2d85f] '/VenHw(e61d73b9-a384-4acc-aeab-82e828f3628b)/USB(0x6,0x0)/HD(1,0x01,0,0x2800000000000,0x0)/efi\boot\bootarm.efi'
Resetting CPU ...
resetting …
Attachment:
cvs.diff
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