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17 Commits

Author SHA1 Message Date
Daniel Barlow c373152673 make tftpboot work on devices with old u-boot 
Some devices have a U-boot variant that does not accept a third
parameter on the "bootm" command, meaning we can't override the dtb
in the bootloader so have to smush it back into the kernel image

This doesn't work in QEMU but I think the problem is with the
U-Boot configuration for QEMU. It does work on at least one
hardware device so I'm pushing it anyway

Based on
https://gti.telent.net/raboof/liminix/src/branch/tftp-old-uboot

Co-authored-by:  Arnout Engelen <arnout@bzzt.net>
 2024-02-15 23:44:47 +00:00
Daniel Barlow 3851698d35 fix tftpboot compressed rootfs 2024-02-13 18:16:17 +00:00
Daniel Barlow 9e199c6957 tftpboot: compute dtbSize *after* changing dtb 
Adding the reserved-memory node to the dtb can cause it to grow
by enough that it needs an extra page - this will overlap the start
of the kernel image if we calculate offsets based on the original size

Reported-by: sinavir
Authored-by: sinavir
 2024-01-26 22:51:58 +00:00
Daniel Barlow dd8ec18881 restore boot.tftp.freeSpaceBytes 2024-01-26 22:46:36 +00:00
Daniel Barlow 921b4f24af boot.scr: append ; not \n to lzmadec command 
this is simply to make copy-paste slightly more convenient
 2024-01-01 20:21:42 +00:00
Daniel Barlow dbf1ecdcb7 swap zimage and dtb in ram 
kernel uncompression code creates a stack directly
after the compressed payload, which was trashing the dtb
 2023-12-23 15:38:32 +00:00
Daniel Barlow c931d84828 tftproot: put command line in dtb 2023-12-23 00:05:34 +00:00
Daniel Barlow 64a3f50248 tftpboot: support compressed root 2023-12-23 00:05:34 +00:00
Daniel Barlow c5e9fcecc7 uninit var 2023-12-23 00:05:34 +00:00
Daniel Barlow f25c41b4d2 tftpboot: move things around in memory 
new layout has rootfs followed by kernel and dtb, so that we
know the rootfs start and size to embed them into the dtb instead
of having to use dummy values and fill them in afterwards
 2023-12-23 00:05:34 +00:00
Daniel Barlow bfa68d9c55 remove unused variable 2023-12-23 00:05:34 +00:00
Daniel Barlow ff0ef825a6 tftpboot: add option for kernel image format 2023-12-23 00:05:34 +00:00
Daniel Barlow 44a0cf364b remove boot-scr output, merge into tftpboot 
(1) it creates two things (script and dtb); (2) it's a bit pointless
without the tftpboot output it depends on
 2023-12-22 21:37:15 +00:00
Daniel Barlow dfbc72dd51 tftpboot test: fix reserved-memory dt for aarch64 2023-12-22 17:37:53 +00:00
Daniel Barlow 231c2cef03 make reserved-memory work on mips, and improve test 2023-12-21 22:21:20 +00:00
Daniel Barlow 32c13c46bb support aarch64 in tftpboot test 2023-12-19 12:12:12 +00:00
Daniel Barlow c81e7c4d35 move all output modules to subdirectory, trash standard.nix 
standard.nix isn't, is the essence here. Not all devices
support flashimage as it is currently defined - some
have diskimage, some have neither
 2023-12-10 15:23:12 +00:00