diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
index f9441efc096a4d626bdf49ba527e8812bcfd5022..b3b1977e9980de592b504f776e559b6b789853f5 100644
--- a/arch/arm64/include/asm/cputype.h
+++ b/arch/arm64/include/asm/cputype.h
@@ -119,6 +119,7 @@
 #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 APPLE_CPU_PART_M1_ICESTORM	0x022
 #define APPLE_CPU_PART_M1_FIRESTORM	0x023
@@ -170,6 +171,7 @@
 #define MIDR_FT_2000PLUS MIDR_CPU_MODEL(ARM_CPU_IMP_PHYTIUM, PHYTIUM_CPU_PART_2000PLUS)
 #define MIDR_FT_2004     MIDR_CPU_MODEL(ARM_CPU_IMP_PHYTIUM, PHYTIUM_CPU_PART_2004)
 #define MIDR_FT_2500	 MIDR_CPU_MODEL(ARM_CPU_IMP_PHYTIUM, PHYTIUM_CPU_PART_2500)
+#define MIDR_PHYTIUM_FTC862	 MIDR_CPU_MODEL(ARM_CPU_IMP_PHYTIUM, PHYTIUM_CPU_PART_FTC862)
 #define MIDR_APPLE_M1_ICESTORM MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M1_ICESTORM)
 #define MIDR_APPLE_M1_FIRESTORM MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M1_FIRESTORM)
 #define MIDR_AMPERE1 MIDR_CPU_MODEL(ARM_CPU_IMP_AMPERE, AMPERE_CPU_PART_AMPERE1)
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index afcede934bc317ff1632d0d47569aa863d2a77b8..e82bb65b48dc7ad12f41120e51656566a6697957 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -412,6 +412,19 @@ static int __init parse_memmap_opt(char *str)
 }
 early_param("memmap", parse_memmap_opt);
 
+#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);
@@ -421,7 +434,10 @@ 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.
 	 */