Call .on_reset method for UCLASS_SPI_FLASH devices before requesting
reset.
This fixes the issue with 4-byte adressing mode being left enabled on
board reset.
That is an issue on Qualcomm IPQ4019 boards since the CPU expects flash
to be in 3-byte adressing mode and will just hang otherwise.
Note that this does not fix a case where you remove the power while U-Boot
is still running and in that case it will still be stuck in 4-byte mode.
Signed-off-by: Robert Marko <robert.ma...@sartura.hr>
---
drivers/sysreset/sysreset-uclass.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/sysreset/sysreset-uclass.c
b/drivers/sysreset/sysreset-uclass.c
index 6151b5fe03..8321cc4230 100644
--- a/drivers/sysreset/sysreset-uclass.c
+++ b/drivers/sysreset/sysreset-uclass.c
@@ -30,6 +30,13 @@ int sysreset_request(struct udevice *dev, enum sysreset_t
type)
if (!ops->request)
return -ENOSYS;
+ /*
+ * Call the .on_reset op for SPI flash devices.
+ * This is required for most devices in order to exit the
+ * 4-byte adressing mode.
+ */
+ uclass_id_on_reset(UCLASS_SPI_FLASH);
+
return ops->request(dev, type);
}
--
2.45.0
