matcha/tock: enable all plic interrupts
This is needed, in particular, by the spi driver.
Change-Id: Id5644adf9214f69dbe66061ad638783dcdc800e7
diff --git a/hal/src/plic_hal.rs b/hal/src/plic_hal.rs
index f85c56c..6541eed 100644
--- a/hal/src/plic_hal.rs
+++ b/hal/src/plic_hal.rs
@@ -46,18 +46,10 @@
pub unsafe fn enable_all() {
let plic: &PlicRegisters = &*PLIC_BASE;
- // TODO(aappleby): Enable all relevant interrupts.
- // USB hardware on current OT master branch seems to have
- // interrupt bugs: running Alarms causes persistent USB
- // CONNECTED interrupts that can't be masked from USBDEV and
- // cause the system to hang. So enable all interrupts except
- // for the USB ones. Some open PRs on OT fix this, we'll re-enable
- // USB interrurupts.
- //
- // https://github.com/lowRISC/opentitan/issues/3388
- plic.enable[0].set(0xFFFF_FFFE);
- plic.enable[1].set(0xFFFF_FFFF);
- plic.enable[2].set(0xFFFF_0000); // USB are 64-79
+ let en_iter = plic.enable.iter();
+ for en in en_iter {
+ en.set(0xFFFF_FFFF);
+ }
// Set the max priority for each interrupt. This is not really used
// at this point.
