diff options
Diffstat (limited to 'lib/sbi/sbi_hart.c')
| -rw-r--r-- | lib/sbi/sbi_hart.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/sbi/sbi_hart.c b/lib/sbi/sbi_hart.c index a4e9bf5..76ed678 100644 --- a/lib/sbi/sbi_hart.c +++ b/lib/sbi/sbi_hart.c @@ -338,6 +338,10 @@ static unsigned long hart_pmp_get_allowed_addr(void) unsigned long val = 0; struct sbi_trap_info trap = {0}; + csr_write_allowed(CSR_PMPCFG0, (ulong)&trap, 0); + if (trap.cause) + return 0; + csr_write_allowed(CSR_PMPADDR0, (ulong)&trap, PMP_ADDR_MASK); if (!trap.cause) { val = csr_read_allowed(CSR_PMPADDR0, (ulong)&trap); |