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.marko@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); }