Merge tag 'edac_for_4.2_2' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp

Pull EDAC updates from Borislav Petkov:

 - New APM X-Gene SoC EDAC driver (Loc Ho)

 - AMD error injection module improvements (Aravind Gopalakrishnan)

 - Altera Arria 10 support (Thor Thayer)

 - misc fixes and cleanups all over the place

* tag 'edac_for_4.2_2' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: (28 commits)
  EDAC: Update Documentation/edac.txt
  EDAC: Fix typos in Documentation/edac.txt
  EDAC, mce_amd_inj: Set MISCV on injection
  EDAC, mce_amd_inj: Move bit preparations before the injection
  EDAC, mce_amd_inj: Cleanup and simplify README
  EDAC, altera: Do not allow suspend when EDAC is enabled
  EDAC, mce_amd_inj: Make inj_type static
  arm: socfpga: dts: Add Arria10 SDRAM EDAC DTS support
  EDAC, altera: Add Arria10 EDAC support
  EDAC, altera: Refactor for Altera CycloneV SoC
  EDAC, altera: Generalize driver to use DT Memory size
  EDAC, mce_amd_inj: Add README file
  EDAC, mce_amd_inj: Add individual permissions field to dfs_node
  EDAC, mce_amd_inj: Modify flags attribute to use string arguments
  EDAC, mce_amd_inj: Read out number of MCE banks from the hardware
  EDAC, mce_amd_inj: Use MCE_INJECT_GET macro for bank node too
  EDAC, xgene: Fix cpuid abuse
  EDAC, mpc85xx: Extend error address to 64 bit
  EDAC, mpc8xxx: Adapt for FSL SoC
  EDAC, edac_stub: Drop arch-specific include
  ...

3 files changed, 16 insertions, 2 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 45df48ba0b12..325d6f3a596a 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -15,6 +15,8 @@ config ARM
 	select CLONE_BACKWARDS
 	select CPU_PM if (SUSPEND || CPU_IDLE)
 	select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS
+	select EDAC_SUPPORT
+	select EDAC_ATOMIC_SCRUB
 	select GENERIC_ALLOCATOR
 	select GENERIC_ATOMIC64 if (CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI)
 	select GENERIC_CLOCKEVENTS_BROADCAST if SMP
diff --git a/arch/arm/boot/dts/socfpga_arria10.dtsi b/arch/arm/boot/dts/socfpga_arria10.dtsi
index 8a05c47fd57f..4be75960a603 100644
--- a/arch/arm/boot/dts/socfpga_arria10.dtsi
+++ b/arch/arm/boot/dts/socfpga_arria10.dtsi
@@ -253,6 +253,17 @@
 			status = "disabled";
 		};
 
+		sdr: sdr@ffc25000 {
+			compatible = "syscon";
+			reg = <0xffcfb100 0x80>;
+		};
+
+		sdramedac {
+			compatible = "altr,sdram-edac-a10";
+			altr,sdr-syscon = <&sdr>;
+			interrupts = <0 2 4>, <0 0 4>;
+		};
+
 		L2: l2-cache@fffff000 {
 			compatible = "arm,pl310-cache";
 			reg = <0xfffff000 0x1000>;
diff --git a/arch/arm/include/asm/edac.h b/arch/arm/include/asm/edac.h
index 0df7a2c1fc3d..5189fa819b60 100644
--- a/arch/arm/include/asm/edac.h
+++ b/arch/arm/include/asm/edac.h
@@ -18,11 +18,12 @@
 #define ASM_EDAC_H
 /*
  * ECC atomic, DMA, SMP and interrupt safe scrub function.
- * Implements the per arch atomic_scrub() that EDAC use for software
+ * Implements the per arch edac_atomic_scrub() that EDAC use for software
  * ECC scrubbing.  It reads memory and then writes back the original
  * value, allowing the hardware to detect and correct memory errors.
  */
-static inline void atomic_scrub(void *va, u32 size)
+
+static inline void edac_atomic_scrub(void *va, u32 size)
 {
 #if __LINUX_ARM_ARCH__ >= 6
 	unsigned int *virt_addr = va;