[RFC] dm: core: Report bootph-pre-ram/sram node as pre-reloc after relocation

[Jonas Karlman]

Devices for nodes with e.g. bootph-pre-ram are initialized three times.
1. At SPL stage (always bind and probe only if used)
2. At U-Boot proper pre-reloc (always bind and probe)
3. At U-Boot proper normal (always bind and probe only if used)

Change ofnode_pre_reloc to report a node with bootph-pre-ram/sram prop
with a pre-reloc status only after U-Boot proper pre-relocation stage.
This prevents the device from being probed at U-Boot proper pre-reloc.

Signed-off-by: Jonas Karlman <jonas at kwiboo.se>
---
I am not sure if U-Boot proper pre-reloc behaves like this by design and
if there is some other way to signal that a device should not be probed
during U-Boot proper pre-reloc stage if it has been probed at SPL stage.

For my use-case I added bootph-pre-ram prop to my RK8xx device node to
make the PMIC usable in SPL. However, I have no need for this device to
probe at U-Boot proper pre-reloc stage just after jumping out of TF-A.
And moments later bind and probe yet again at U-Boot proper normal stage.

The bootph-pre-ram prop was used to have the device usable in SPL, else
I could have used bootph-all or added bootph-some-ram prop to indicate
use at U-Boot proper pre-reloc stage.

 drivers/core/ofnode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c
index 8df16e56af5c..ebd5a408ae58 100644
--- a/drivers/core/ofnode.c
+++ b/drivers/core/ofnode.c
@@ -1353,7 +1353,7 @@ bool ofnode_pre_reloc(ofnode node)
 	 */
 	if (ofnode_read_bool(node, "bootph-pre-ram") ||
 	    ofnode_read_bool(node, "bootph-pre-sram"))
-		return true;
+		return !!(gd->flags & GD_FLG_RELOC);
 
 	if (IS_ENABLED(CONFIG_OF_TAG_MIGRATE)) {
 		/* detect and handle old tags */
-- 
2.41.0