Following up on IRC conversation, for the record:
> Le 1 mai 2021 à 11:27, Thibaut <[email protected]> a écrit :
[…]
> Yes, but only the first 4K is used. What’s needed is to check whether or not
> the rb_hardconfig driver will successfully process a 4K-only block from an 8K
> partition. I *think* it should, but haven’t looked back at the code or tested
> that yet.
After checking, the rb_hardconfig driver will handle this case with no problem.
> If that’s the case then adapting routerbootpart is relatively trivial.
There are two ways to deal with the hap-ac2 situation:
Either fix it globally, by making the hard_config partition auto-extend up to
the next defined partition via the following patch:
--- a/target/linux/generic/files/drivers/mtd/parsers/routerbootpart.c
+++ b/target/linux/generic/files/drivers/mtd/parsers/routerbootpart.c
@@ -99,7 +99,7 @@ static struct routerboot_dynpart rb_dynparts[] = {
.magic = RB_MAGIC_HARD, // stored in CPU-endianness on flash
.size_fixup = NULL,
.offset = 0x0,
- .size = RB_BLOCK_SIZE,
+ .size = 0x0,
.found = false,
}, {
.name = "soft_config »,
This would of course need to be confirmed working on all currently supported
devices (I can’t think of a situation where this would break, but one never
knows).
Alternatively, overriding the size= parameter in the hap-ac2 DTS should also
work. It’s likely this change will be needed for other ipq-based mikrotik
devices.
HTH,
Thibaut
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