From 0b7d91f66386b9a2462d7ae2cb94fb5e634d17ce Mon Sep 17 00:00:00 2001
From: Sebastian Sumpf <sebastian.sumpf@genode-labs.com>
Date: Fri, 11 Jan 2013 17:12:32 +0100
Subject: [PATCH] ARM: Errata 743622

Restrict the appliance of ERRATA 743622 to CPU revisions: r2p0-r2p2.

Was 'foc_arm_errata.patch'
---
 kernel/fiasco/src/kern/arm/cpu-arm.cpp | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/kernel/fiasco/src/kern/arm/cpu-arm.cpp b/kernel/fiasco/src/kern/arm/cpu-arm.cpp
index 336665cf..13b8c6d9 100644
--- a/kernel/fiasco/src/kern/arm/cpu-arm.cpp
+++ b/kernel/fiasco/src/kern/arm/cpu-arm.cpp
@@ -459,7 +459,13 @@ Cpu::id_init()
 }
 
 //---------------------------------------------------------------------------
-IMPLEMENTATION [arm && armv6plus]:
+IMPLEMENTATION [arm && armv6plus && omap4_pandaboard]:
+
+PRIVATE static inline
+void Cpu::init_errata_workarounds() {}
+
+//---------------------------------------------------------------------------
+IMPLEMENTATION [arm && armv6plus && !omap4_pandaboard]:
 
 PRIVATE static inline
 void
@@ -559,8 +565,8 @@ Cpu::init_errata_workarounds()
           if (rev == 0x20 || rev == 0x21 || rev == 0x22)
             set_c15_c0_1((1 << 12) | (1 << 22));
 
-          // errata: 743622
-          if ((rev & 0xf0) == 0x20)
+          // errata: 743622 (r2p0 - r2p2)
+          if ((rev & 0xf0) == 0x20 && (rev & 0xf) < 0x3)
             set_c15_c0_1(1 << 6);
 
           // errata: 751472