bootstage: Allow SPL to obtain bootstage info from TPL
It is possible to enable bootstage in TPL. TPL can stash the info for SPL.
But at present this information is then lost because SPL does not read
from the stash.
Add support for SPL not being the first phase to enable bootstage.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/common/spl/spl.c b/common/spl/spl.c
index eabb1fb..f1ad8dc 100644
--- a/common/spl/spl.c
+++ b/common/spl/spl.c
@@ -18,6 +18,7 @@
#include <version.h>
#include <image.h>
#include <malloc.h>
+#include <mapmem.h>
#include <dm/root.h>
#include <linux/compiler.h>
#include <fdt_support.h>
@@ -396,12 +397,23 @@
gd->malloc_ptr = 0;
}
#endif
- ret = bootstage_init(true);
+ ret = bootstage_init(u_boot_first_phase());
if (ret) {
debug("%s: Failed to set up bootstage: ret=%d\n", __func__,
ret);
return ret;
}
+#ifdef CONFIG_BOOTSTAGE_STASH
+ if (!u_boot_first_phase()) {
+ const void *stash = map_sysmem(CONFIG_BOOTSTAGE_STASH_ADDR,
+ CONFIG_BOOTSTAGE_STASH_SIZE);
+
+ ret = bootstage_unstash(stash, CONFIG_BOOTSTAGE_STASH_SIZE);
+ if (ret)
+ debug("%s: Failed to unstash bootstage: ret=%d\n",
+ __func__, ret);
+ }
+#endif /* CONFIG_BOOTSTAGE_STASH */
bootstage_mark_name(spl_phase() == PHASE_TPL ? BOOTSTAGE_ID_START_TPL :
BOOTSTAGE_ID_START_SPL, SPL_TPL_NAME);
#if CONFIG_IS_ENABLED(LOG)