[U-Boot] [PATCH v2 2/2] efi_loader: check timer events in Stall()

[Heinrich Schuchardt]

During a call to Stall() we should periodically check for timer events.

Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
---
v2
	Remove redundant implementation of usec_to_tick() in
	arch/arm/mach-rockchip/rk_timer.c
---
 lib/efi_loader/efi_boottime.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index 5714deca70..b64ca54dbc 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -1990,8 +1990,14 @@ out:
  */
 static efi_status_t EFIAPI efi_stall(unsigned long microseconds)
 {
+	u64 end_tick;
+
 	EFI_ENTRY("%ld", microseconds);
-	udelay(microseconds);
+
+	end_tick = get_ticks() + usec_to_tick(microseconds);
+	while (get_ticks() < end_tick)
+		efi_timer_check();
+
 	return EFI_EXIT(EFI_SUCCESS);
 }

--
2.20.1