diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
index 3226929c8816e513ae6ebc378da000cd5dcf1415..e76e2ce54ca8777150042a32e7d8d4293a21cc70 100644
--- a/arch/arm64/include/asm/cputype.h
+++ b/arch/arm64/include/asm/cputype.h
@@ -88,6 +88,7 @@
 #define PHYTIUM_CPU_PART_2000PLUS	0X662
 #define PHYTIUM_CPU_PART_2004	    0X663
 #define PHYTIUM_CPU_PART_2500		0X663
+#define PHYTIUM_CPU_PART_FTC862		0x862
 
 #define CAVIUM_CPU_PART_THUNDERX	0x0A1
 #define CAVIUM_CPU_PART_THUNDERX_81XX	0x0A2
@@ -151,6 +152,7 @@
 #define MIDR_HISI_LINXICORE9100 MIDR_CPU_MODEL(ARM_CPU_IMP_HISI, HISI_CPU_PART_LINXICORE9100)
 
 #define MIDR_AMPERE1 MIDR_CPU_MODEL(ARM_CPU_IMP_AMPERE, AMPERE_CPU_PART_AMPERE1)
+#define MIDR_PHYTIUM_FTC862     MIDR_CPU_MODEL(ARM_CPU_IMP_PHYTIUM, PHYTIUM_CPU_PART_FTC862)
 
 /* Fujitsu Erratum 010001 affects A64FX 1.0 and 1.1, (v0r0 and v1r0) */
 #define MIDR_FUJITSU_ERRATUM_010001		MIDR_FUJITSU_A64FX
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index 0f321d1316387bdeb640064ec536f63086b85591..bb0048ca5e071cfb7d28c7661e9be6c7a8c558e1 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -280,6 +280,19 @@ static void __init fdt_enforce_memory_region(void)
 		memblock_add(usable_rgns[1].base, usable_rgns[1].size);
 }
 
+#ifdef CONFIG_ARCH_PHYTIUM
+#define SOCID_PS23064 0x8
+#define RMV_PS23064 0x510783f00000
+static inline void phytium_ps23064_quirk(void)
+{
+	if (read_sysreg_s(SYS_AIDR_EL1) == SOCID_PS23064 &&
+		read_cpuid_id() == MIDR_PHYTIUM_FTC862) {
+		pr_warn("Enable Phytium S5000C-128 Core quirk\n");
+		memblock_remove(RMV_PS23064, (1ULL << PHYS_MASK_SHIFT) - RMV_PS23064);
+	}
+}
+#endif
+
 void __init arm64_memblock_init(void)
 {
 	const s64 linear_region_size = BIT(vabits_actual - 1);
@@ -289,7 +302,10 @@ void __init arm64_memblock_init(void)
 
 	/* Remove memory above our supported physical address size */
 	memblock_remove(1ULL << PHYS_MASK_SHIFT, ULLONG_MAX);
-
+#ifdef CONFIG_ARCH_PHYTIUM
+	if (IS_ENABLED(CONFIG_KASAN))
+		phytium_ps23064_quirk();
+#endif
 	/*
 	 * Select a suitable value for the base of physical memory.
 	 */