sandbox: sysreset: Update to support power-on reset
If U-Boot is started from SPL or TPL, then those earlier phases deal with
the reset cause. On real hardware this cause may be lost once it is read.
Emulate that behaviour in sandbox by reporting a warm reset when a
previous phase has run since start-up.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/sysreset/sysreset_sandbox.c b/drivers/sysreset/sysreset_sandbox.c
index 7f6d418..38e2a7e 100644
--- a/drivers/sysreset/sysreset_sandbox.c
+++ b/drivers/sysreset/sysreset_sandbox.c
@@ -84,7 +84,13 @@
int sandbox_sysreset_get_last(struct udevice *dev)
{
- return SYSRESET_COLD;
+ struct sandbox_state *state = state_get_current();
+
+ /*
+ * The first phase is a power reset, after that we assume we don't
+ * know.
+ */
+ return state->jumped_fname ? SYSRESET_WARM : SYSRESET_POWER;
}
static struct sysreset_ops sandbox_sysreset_ops = {