diff --git a/Documentation/arm64/silicon-errata.txt b/Documentation/arm64/silicon-errata.txt
index 1f09d043d086..26d64e9f3a35 100644
--- a/Documentation/arm64/silicon-errata.txt
+++ b/Documentation/arm64/silicon-errata.txt
@@ -80,3 +80,4 @@ stable kernels.
 | Qualcomm Tech. | Falkor v1       | E1009           | QCOM_FALKOR_ERRATUM_1009    |
 | Qualcomm Tech. | QDF2400 ITS     | E0065           | QCOM_QDF2400_ERRATUM_0065   |
 | Qualcomm Tech. | Falkor v{1,2}   | E1041           | QCOM_FALKOR_ERRATUM_1041    |
+| Fujitsu        | A64FX           | E#010001        | FUJITSU_ERRATUM_010001      |
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index c7a44bcfc385..3fd266a177b5 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -643,6 +643,25 @@ config QCOM_FALKOR_ERRATUM_E1041
 
 	  If unsure, say Y.
 
+config FUJITSU_ERRATUM_010001
+	bool "Fujitsu-A64FX erratum E#010001: Undefined fault may occur wrongly"
+	default y
+	help
+	  This option adds workaround for Fujitsu-A64FX erratum E#010001.
+	  On some variants of the Fujitsu-A64FX cores ver(1.0, 1.1), memory
+	  accesses may cause undefined fault (Data abort, DFSC=0b111111).
+	  This fault occurs under a specific hardware condition when a
+	  load/store instruction performs an address translation using:
+	  case-1  TTBR0_EL1 with TCR_EL1.NFD0 == 1.
+	  case-2  TTBR0_EL2 with TCR_EL2.NFD0 == 1.
+	  case-3  TTBR1_EL1 with TCR_EL1.NFD1 == 1.
+	  case-4  TTBR1_EL2 with TCR_EL2.NFD1 == 1.
+
+	  The workaround is to ensure these bits are clear in TCR_ELx.
+	  The workaround only affect the Fujitsu-A64FX.
+
+	  If unsure, say Y.
+
 endmenu
 
 
diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h
index 9c5c876a9ff2..c5308d01e228 100644
--- a/arch/arm64/include/asm/assembler.h
+++ b/arch/arm64/include/asm/assembler.h
@@ -27,6 +27,7 @@
 
 #include <asm/asm-offsets.h>
 #include <asm/cpufeature.h>
+#include <asm/cputype.h>
 #include <asm/debug-monitors.h>
 #include <asm/page.h>
 #include <asm/pgtable-hwdef.h>
@@ -596,6 +597,25 @@ USER(\label, ic	ivau, \tmp2)			// invalidate I line PoU
 #endif
 	.endm
 
+/*
+ * tcr_clear_errata_bits - Clear TCR bits that trigger an errata on this CPU.
+ */
+	.macro	tcr_clear_errata_bits, tcr, tmp1, tmp2
+#ifdef CONFIG_FUJITSU_ERRATUM_010001
+	mrs	\tmp1, midr_el1
+
+	mov_q	\tmp2, MIDR_FUJITSU_ERRATUM_010001_MASK
+	and	\tmp1, \tmp1, \tmp2
+	mov_q	\tmp2, MIDR_FUJITSU_ERRATUM_010001
+	cmp	\tmp1, \tmp2
+	b.ne	10f
+
+	mov_q	\tmp2, TCR_CLEAR_FUJITSU_ERRATUM_010001
+	bic	\tcr, \tcr, \tmp2
+10:
+#endif /* CONFIG_FUJITSU_ERRATUM_010001 */
+	.endm
+
 /**
  * Errata workaround prior to disable MMU. Insert an ISB immediately prior
  * to executing the MSR that will change SCTLR_ELn[M] from a value of 1 to 0.
diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
index 951ed1a4e5c9..2afb1338b48a 100644
--- a/arch/arm64/include/asm/cputype.h
+++ b/arch/arm64/include/asm/cputype.h
@@ -76,6 +76,7 @@
 #define ARM_CPU_IMP_BRCM		0x42
 #define ARM_CPU_IMP_QCOM		0x51
 #define ARM_CPU_IMP_NVIDIA		0x4E
+#define ARM_CPU_IMP_FUJITSU		0x46
 
 #define ARM_CPU_PART_AEM_V8		0xD0F
 #define ARM_CPU_PART_FOUNDATION		0xD00
@@ -104,6 +105,8 @@
 #define NVIDIA_CPU_PART_DENVER		0x003
 #define NVIDIA_CPU_PART_CARMEL		0x004
 
+#define FUJITSU_CPU_PART_A64FX		0x001
+
 #define MIDR_CORTEX_A53 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A53)
 #define MIDR_CORTEX_A57 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A57)
 #define MIDR_CORTEX_A72 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A72)
@@ -122,6 +125,12 @@
 #define MIDR_QCOM_KRYO MIDR_CPU_MODEL(ARM_CPU_IMP_QCOM, QCOM_CPU_PART_KRYO)
 #define MIDR_NVIDIA_DENVER MIDR_CPU_MODEL(ARM_CPU_IMP_NVIDIA, NVIDIA_CPU_PART_DENVER)
 #define MIDR_NVIDIA_CARMEL MIDR_CPU_MODEL(ARM_CPU_IMP_NVIDIA, NVIDIA_CPU_PART_CARMEL)
+#define MIDR_FUJITSU_A64FX MIDR_CPU_MODEL(ARM_CPU_IMP_FUJITSU, FUJITSU_CPU_PART_A64FX)
+
+/* Fujitsu Erratum 010001 affects A64FX 1.0 and 1.1, (v0r0 and v1r0) */
+#define MIDR_FUJITSU_ERRATUM_010001		MIDR_FUJITSU_A64FX
+#define MIDR_FUJITSU_ERRATUM_010001_MASK	(~MIDR_VARIANT(1))
+#define TCR_CLEAR_FUJITSU_ERRATUM_010001	(TCR_NFD1 | TCR_NFD0)
 
 #ifndef __ASSEMBLY__
 
diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h
index e9b0a7d75184..a69259cc1f16 100644
--- a/arch/arm64/include/asm/pgtable-hwdef.h
+++ b/arch/arm64/include/asm/pgtable-hwdef.h
@@ -302,6 +302,7 @@
 #define TCR_TBI1		(UL(1) << 38)
 #define TCR_HA			(UL(1) << 39)
 #define TCR_HD			(UL(1) << 40)
+#define TCR_NFD0		(UL(1) << 53)
 #define TCR_NFD1		(UL(1) << 54)
 
 /*
diff --git a/arch/arm64/mm/proc.S b/arch/arm64/mm/proc.S
index 3ea4f3b84a8b..aa0817c9c4c3 100644
--- a/arch/arm64/mm/proc.S
+++ b/arch/arm64/mm/proc.S
@@ -445,6 +445,7 @@ ENTRY(__cpu_setup)
 	ldr	x10, =TCR_TxSZ(VA_BITS) | TCR_CACHE_FLAGS | TCR_SMP_FLAGS | \
 			TCR_TG_FLAGS | TCR_KASLR_FLAGS | TCR_ASID16 | \
 			TCR_TBI0 | TCR_A1 | TCR_KASAN_FLAGS
+	tcr_clear_errata_bits x10, x9, x5
 
 #ifdef CONFIG_ARM64_USER_VA_BITS_52
 	ldr_l		x9, vabits_user