mtd: cfi: respect reg address length

flash_get_size() will get the flash size from the device itself and go
through all erase regions to read protection status. However, the device
mappable region (eg: devicetree reg property) might be lower than the
device full size which means that the above cycle will result in a data
bus exception. This change fixes it by reading the 'addr_size' during
probe() and also use that as one possible upper limit.

Signed-off-by: Nuno Sá <nuno.sa@analog.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/flash.h b/include/flash.h
index 95992fa689b..3710a2731b7 100644
--- a/include/flash.h
+++ b/include/flash.h
@@ -46,6 +46,7 @@ typedef struct {
 #ifdef CONFIG_CFI_FLASH			/* DM-specific parts */
 	struct udevice *dev;
 	phys_addr_t base;
+	phys_size_t addr_size;
 #endif
 } flash_info_t;