From b5ffaf7d70e2a6e39798b9d8bedfb7a1d6dd2902 Mon Sep 17 00:00:00 2001
From: Ryan Harkin <ryan.harkin@linaro.org>
Date: Tue, 1 Mar 2016 08:20:40 +0000
Subject: [PATCH] ArmPlatformPkg/PL180MciDxe: warn on probe fail

If the PL180 fails to probe, issue a warning on debug builds.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ryan Harkin <ryan.harkin@linaro.org>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
---
 ArmPlatformPkg/Drivers/PL180MciDxe/PL180Mci.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ArmPlatformPkg/Drivers/PL180MciDxe/PL180Mci.c b/ArmPlatformPkg/Drivers/PL180MciDxe/PL180Mci.c
index 688cd8a98c..3e94ea59f5 100644
--- a/ArmPlatformPkg/Drivers/PL180MciDxe/PL180Mci.c
+++ b/ArmPlatformPkg/Drivers/PL180MciDxe/PL180Mci.c
@@ -534,6 +534,8 @@ PL180MciDxeInitialize (
       MmioRead8 (MCI_PCELL_ID_REG2)  != MCI_PCELL_ID2  ||
       MmioRead8 (MCI_PCELL_ID_REG3)  != MCI_PCELL_ID3) {
 
+    DEBUG ((EFI_D_WARN, "Probing ID registers at 0x%lx for a PL180"
+      " failed\n", MCI_PERIPH_ID_REG0));
     return EFI_NOT_FOUND;
   }
 
-- 
2.39.2