2 files changed, 22 insertions, 3 deletions

diff --git a/arch/arm/kernel/smp_scu.c b/arch/arm/kernel/smp_scu.c
index 5b6d536cbfe..8f5dd796335 100644
--- a/arch/arm/kernel/smp_scu.c
+++ b/arch/arm/kernel/smp_scu.c
@@ -13,6 +13,7 @@
 
 #include <asm/smp_scu.h>
 #include <asm/cacheflush.h>
+#include <asm/cputype.h>
 
 #define SCU_CTRL                0x00
 #define SCU_CONFIG              0x04
@@ -37,6 +38,15 @@ void scu_enable(void __iomem *scu_base)
 {
         u32 scu_ctrl;
 
+#ifdef CONFIG_ARM_ERRATA_764369
+        /* Cortex-A9 only */
+        if ((read_cpuid(CPUID_ID) & 0xff0ffff0) == 0x410fc090) {
+                scu_ctrl = __raw_readl(scu_base + 0x30);
+                if (!(scu_ctrl & 1))
+                        __raw_writel(scu_ctrl | 0x1, scu_base + 0x30);
+        }
+#endif
+
         scu_ctrl = __raw_readl(scu_base + SCU_CTRL);
         /* already enabled? */
         if (scu_ctrl & 1)
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index bf977f8514f..4e66f62b8d4 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -23,8 +23,10 @@
 
 #if defined(CONFIG_SMP_ON_UP) && !defined(CONFIG_DEBUG_SPINLOCK)
 #define ARM_EXIT_KEEP(x)        x
+#define ARM_EXIT_DISCARD(x)
 #else
 #define ARM_EXIT_KEEP(x)
+#define ARM_EXIT_DISCARD(x)     x
 #endif
 
 OUTPUT_ARCH(arm)
@@ -39,6 +41,11 @@ jiffies = jiffies_64 + 4;
 SECTIONS
 {
         /*
+         * XXX: The linker does not define how output sections are
+         * assigned to input sections when there are multiple statements
+         * matching the same input section name.  There is no documented
+         * order of matching.
+         *
          * unwind exit sections must be discarded before the rest of the
          * unwind sections get included.
          */
@@ -47,6 +54,9 @@ SECTIONS
                 *(.ARM.extab.exit.text)
                 ARM_CPU_DISCARD(*(.ARM.exidx.cpuexit.text))
                 ARM_CPU_DISCARD(*(.ARM.extab.cpuexit.text))
+                ARM_EXIT_DISCARD(EXIT_TEXT)
+                ARM_EXIT_DISCARD(EXIT_DATA)
+                EXIT_CALL
 #ifndef CONFIG_HOTPLUG
                 *(.ARM.exidx.devexit.text)
                 *(.ARM.extab.devexit.text)
@@ -58,6 +68,8 @@ SECTIONS
 #ifndef CONFIG_SMP_ON_UP
                 *(.alt.smp.init)
 #endif
+                *(.discard)
+                *(.discard.*)
         }
 
 #ifdef CONFIG_XIP_KERNEL
@@ -279,9 +291,6 @@ SECTIONS
 
         STABS_DEBUG
         .comment 0 : { *(.comment) }
-
-        /* Default discards */
-        DISCARDS
 }
 
 /*