ArmPlatformPkg/PL180MciDxe: Fixed check for space in transmit FIFO

This patch prevents a buffer underrun error on the Versatile Express

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14793 6f19259b-4bc3-4df7-8a09-765794883524

diff --git a/ArmPlatformPkg/Drivers/PL180MciDxe/PL180Mci.c b/ArmPlatformPkg/Drivers/PL180MciDxe/PL180Mci.c
index db8b29fac3ac85007d31748a56e86bc0b6f8ba13..f7a4d443119eec23550da40379051dfec6bb531c 100644 (file)
--- a/ArmPlatformPkg/Drivers/PL180MciDxe/PL180Mci.c
+++ b/ArmPlatformPkg/Drivers/PL180MciDxe/PL180Mci.c
@@ -336,7 +336,7 @@ MciWriteBlockData (
       Loop++;\r
       MmioWrite32(MCI_FIFO_REG, Buffer[Loop]);\r
       Loop++;\r
-    } else if ((Status & MCI_STATUS_CMD_TXFIFOEMPTY)) {\r
+    } else if (!(Status & MCI_STATUS_CMD_TXFIFOFULL)) {\r
         MmioWrite32(MCI_FIFO_REG, Buffer[Loop]);\r
         Loop++;\r
     } else {\r