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| author | Yannis Huber <[email protected]> | 2020-06-07 11:23:14 +0200 |
|---|---|---|
| committer | Ron Evans <[email protected]> | 2020-06-07 11:45:26 +0200 |
| commit | d61d5d7ab1beeb7d2ecace8c510ec6bdaece88d8 (patch) | |
| tree | b5145d6f18c1ef4a795c9ac9dc91083782870cc8 | |
| parent | c5a896771d865fc77fac3e50c98e3d0ec98bad54 (diff) | |
| download | tinygo-d61d5d7ab1beeb7d2ecace8c510ec6bdaece88d8.tar.gz tinygo-d61d5d7ab1beeb7d2ecace8c510ec6bdaece88d8.zip | |
Zero PLIC threshold value at startup
The PLIC threshold value must be zeroed at startup to permit
all interrupt priorities. Fixes #1128.
| -rw-r--r-- | src/runtime/runtime_fe310.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/runtime/runtime_fe310.go b/src/runtime/runtime_fe310.go index de0d7ec46..437f03bf5 100644 --- a/src/runtime/runtime_fe310.go +++ b/src/runtime/runtime_fe310.go @@ -24,6 +24,9 @@ func main() { sifive.PLIC.ENABLE[0].Set(0) sifive.PLIC.ENABLE[1].Set(0) + // Zero the threshold value to allow all priorities of interrupts. + sifive.PLIC.THRESHOLD.Set(0) + // Set the interrupt address. // Note that this address must be aligned specially, otherwise the MODE bits // of MTVEC won't be zero. |