sandbox: Add a way to skip time delays

Some tests are slow due to delays which are unnecessary on sandbox. The
worst offender is USB where we lose two seconds. Add a way to disable time
delays.

Signed-off-by: Simon Glass <sjg@chromium.org>

2 files changed, 18 insertions, 1 deletions

diff --git a/arch/sandbox/cpu/cpu.c b/arch/sandbox/cpu/cpu.c
index 3a7f5a004b..196f3e1191 100644
--- a/arch/sandbox/cpu/cpu.c
+++ b/arch/sandbox/cpu/cpu.c
@@ -37,7 +37,10 @@ void sandbox_exit(void)
 /* delay x useconds */
 void __udelay(unsigned long usec)
 {
-	os_usleep(usec);
+	struct sandbox_state *state = state_get_current();
+
+	if (!state->skip_delays)
+		os_usleep(usec);
 }
 
 int cleanup_before_linux(void)
diff --git a/arch/sandbox/cpu/state.c b/arch/sandbox/cpu/state.c
index 7e5d03e846..d2a7dc9b45 100644
--- a/arch/sandbox/cpu/state.c
+++ b/arch/sandbox/cpu/state.c
@@ -337,6 +337,20 @@ struct sandbox_state *state_get_current(void)
 	return state;
 }
 
+void state_set_skip_delays(bool skip_delays)
+{
+	struct sandbox_state *state = state_get_current();
+
+	state->skip_delays = skip_delays;
+}
+
+bool state_get_skip_delays(void)
+{
+	struct sandbox_state *state = state_get_current();
+
+	return state->skip_delays;
+}
+
 int state_init(void)
 {
 	state = &main_state;