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29-Feb-2016 |
sgalabov |
This review aims at introducing ubldr (loader with U-Boot interface) for MIPS (32 and 64-bit, LE and BE). The changes were tested with QEMU's 'mips' target.
Most of the implementation was lifted from the ARM version, the appropriate MIPS-specific things were implemented.
With these changes I am able to go all the way through the u-boot->ubldr->kernel boot chain in QEMU on all combinations of bit-ness and endian-ness.
For the tests I've used FAT32 disk images (as FAT32 is supported by U-boot), which include /boot/kernel/kernel and /boot/kernel/ubldr.bin
In U-boot I do: fatload ide 0 <LOAD_ADDR> /boot/kernel/ubldr.bin; go <LOAD_ADDR> where LOAD_ADDR is 80800000 for 32-bit and ffffffff80800000 for 64-bit
Then it's the usual ubldr that takes over and loads and starts a kernel.
Approved by: adrian (mentor) Sponsored by: Smartcom - Bulgaria AD Differential Revision: https://reviews.freebsd.org/D5313
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