RISC-V: fix usage of special register when interrupts are enabled
@@ -268,7 +268,7 @@ _interrupt_handler:
/* call the C dispatcher */
mv a0, sp /* argument 1, stack pointer */
- csrr a1, mcause /* argument 2, interrupt number */
+ mv a1, s1 /* argument 2, interrupt number (mcause) */
/* mask off the interrupt flag of mcause */
li t0, 0x7fffffff
and a1, a1, t0
@@ -276,7 +276,7 @@ _interrupt_handler:
/* After dispatch c handler, disable interrupt to make freertos make context switch */
- la t0, 0x8
+ li t0, 0x8
csrrc t0, mstatus, t0
/* restore the interrupt threshold level */
