diff options
Diffstat (limited to 'lib/sbi/sbi_hart.c')
| -rw-r--r-- | lib/sbi/sbi_hart.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/sbi/sbi_hart.c b/lib/sbi/sbi_hart.c index 3de46a2..535fe19 100644 --- a/lib/sbi/sbi_hart.c +++ b/lib/sbi/sbi_hart.c @@ -385,7 +385,7 @@ static unsigned long coldboot_wait_bitmap = 0; void sbi_hart_wait_for_coldboot(struct sbi_scratch *scratch, u32 hartid) { - unsigned long saved_mie; + unsigned long saved_mie, cmip; const struct sbi_platform *plat = sbi_platform_ptr(scratch); if ((sbi_platform_hart_count(plat) <= hartid) || @@ -407,7 +407,10 @@ void sbi_hart_wait_for_coldboot(struct sbi_scratch *scratch, u32 hartid) /* Wait for coldboot to finish using WFI */ while (!coldboot_done) { spin_unlock(&coldboot_lock); - wfi(); + do { + wfi(); + cmip = csr_read(CSR_MIP); + } while (!(cmip & MIP_MSIP)); spin_lock(&coldboot_lock); }; |