[PATCH 2/2] MN10300: Fix MTD JEDEC probe so that the ASB2303 bootprom can be detected

[David Howells <dhowells@redhat.com>]

Fix MTD JEDEC probe so that the ASB2303 bootprom can be accessed.  This is
presumably required because the bootprom is normally write-protected and so
the normal flash probes don't work as they require the ability to write to the
flash to send it commands.

In the condition of the excluded if-statement, uaddr is 1.

Signed-off-by: David Howells <dhowells@redhat.com>
---

 drivers/mtd/chips/jedec_probe.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/drivers/mtd/chips/jedec_probe.c b/drivers/mtd/chips/jedec_probe.c
index a67b23b..734674d 100644
--- a/drivers/mtd/chips/jedec_probe.c
+++ b/drivers/mtd/chips/jedec_probe.c
@@ -1868,11 +1868,18 @@ static inline __u8 finfo_uaddr(const struct amd_flash_info *finfo, int device_ty
 
 	uaddr = finfo->uaddr[uaddr_idx];
 
+	/* the MN10300 ASB2303 board doesn't detect its bootprom if this test
+	 * is allowed to take place, presumably because the flash is
+	 * write-protected and so cannot be commanded for the purposes of
+	 * probing
+	 */
+#ifndef CONFIG_MN10300_UNIT_ASB2303
 	if (uaddr != MTD_UADDR_NOT_SUPPORTED ) {
 		/* ASSERT("The unlock addresses for non-8-bit mode
 		   are bollocks. We don't really need an array."); */
 		uaddr = finfo->uaddr[0];
 	}
+#endif
 
  uaddr_done:
 	return uaddr;