From: Olivier Martin <olivier.martin@arm.com>
Date: Mon, 21 Oct 2013 11:06:51 +0000 (+0000)
Subject: ArmPlatformPkg/PL180MciDxe: Fixed check for space in transmit FIFO
X-Git-Tag: edk2-stable201903~12164
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=4f8c9ae05d699c72fbe4b5bda4b1c64e8c907337;p=mirror_edk2.git

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 db8b29fac3..f7a4d44311 100644
--- a/ArmPlatformPkg/Drivers/PL180MciDxe/PL180Mci.c
+++ b/ArmPlatformPkg/Drivers/PL180MciDxe/PL180Mci.c
@@ -336,7 +336,7 @@ MciWriteBlockData (
       Loop++;
       MmioWrite32(MCI_FIFO_REG, Buffer[Loop]);
       Loop++;
-    } else if ((Status & MCI_STATUS_CMD_TXFIFOEMPTY)) {
+    } else if (!(Status & MCI_STATUS_CMD_TXFIFOFULL)) {
         MmioWrite32(MCI_FIFO_REG, Buffer[Loop]);
         Loop++;
     } else {