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add a routine to print the info region

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The info region is a region of RRAM that is used to configure
the chip - boot security, what CPUs can run, access control
lists, etc. There's no secrets in here, but it's very helpful
to inspect for audits and correctness of configuration, so
a routine is added to print it in boot1.
This commit is contained in:
bunnie 2026-01-15 17:04:11 +08:00
parent 86f0b18fdc
commit b06c124b3e
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1 changed files with 9 additions and 1 deletions
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10
bao1x-boot/boot1/src/repl.rs
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@ -557,6 +557,14 @@ impl Repl {
let mut rcurst = CSR::new(utra::sysctrl::HW_SYSCTRL_BASE as *mut u32);
rcurst.wo(utra::sysctrl::SFR_RCURST0, 0x55AA);
}
"ifr" => {
// safety: the IFR region is aligned and exists here. It is sealed by hardware in USER mode,
// and should report as all 0's.
let ifr = unsafe { core::slice::from_raw_parts(0x6040_0000 as *const u8, 0x400) };
for (i, chunk) in ifr.chunks(32).enumerate() {
crate::println!(" {:03x}: {:02x?}", i * 32, chunk);
}
}
#[cfg(feature = "test-boot0-keys")]
"publock" => {
let rram = CSR::new(utra::rrc::HW_RRC_BASE as *mut u32);
@ -655,7 +663,7 @@ impl Repl {
_ => {
crate::println!("Command not recognized: {}", cmd);
crate::print!(
"Commands include: reset, echo, altboot, boot, bootwait, idmode, localecho, uf2, boardtype, audit, lockdown, paranoid, self_destruct"
"Commands include: reset, echo, altboot, boot, bootwait, idmode, localecho, uf2, boardtype, audit, lockdown, paranoid, self_destruct, ifr"
);
#[cfg(feature = "test-boot0-keys")]
crate::print!(", publock");