diff options
Diffstat (limited to 'lib/sbi/sbi_init.c')
| -rw-r--r-- | lib/sbi/sbi_init.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/sbi/sbi_init.c b/lib/sbi/sbi_init.c index 2b9afb7..90ec64c 100644 --- a/lib/sbi/sbi_init.c +++ b/lib/sbi/sbi_init.c @@ -79,7 +79,7 @@ static struct sbi_hartmask coldboot_wait_hmask = { 0 }; static void 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); /* Save MIE CSR */ @@ -97,7 +97,10 @@ static void 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); }; |