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sandbox: sysreset: Update to support power-on reset

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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>
This commit is contained in:
Simon Glass 2018-11-23 21:29:28 -07:00
parent e628bba785
commit 2a07269062
2 changed files with 9 additions and 3 deletions
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8
drivers/sysreset/sysreset_sandbox.c
View file

@ -84,7 +84,13 @@ int sandbox_sysreset_get_status(struct udevice *dev, char *buf, int size)
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 = {

4
test/dm/sysreset.c
View file

@ -102,10 +102,10 @@ static int dm_test_sysreset_get_last(struct unit_test_state *uts)
/* Device 2 is the cold sysreset device */
ut_assertok(uclass_get_device(UCLASS_SYSRESET, 2, &dev));
ut_asserteq(SYSRESET_COLD, sysreset_get_last(dev));
ut_asserteq(SYSRESET_POWER, sysreset_get_last(dev));
/* This is device 0, the non-DT one */
ut_asserteq(SYSRESET_COLD, sysreset_get_last_walk());
ut_asserteq(SYSRESET_POWER, sysreset_get_last_walk());
return 0;
}