diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
index 3f5ccf2b5c0264b79803d6130172c2d292f8b948..11d95cb6943194406accfc1e72a1fbc8b4610e77 100644
--- a/arch/arm64/include/asm/cputype.h
+++ b/arch/arm64/include/asm/cputype.h
@@ -92,6 +92,7 @@
 #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
@@ -181,6 +182,7 @@
 #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)
 
 #ifndef __ASSEMBLY__
 
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index 96f870e830625c42129bcff9318dee2bcb6a6f5d..7f2c3a123323a082bf5012397062f8965e5b32b6 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -390,6 +390,19 @@ static void __init fdt_enforce_memory_region(void)
 		memblock_add(rgn[i].base, rgn[i].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);
@@ -399,7 +412,10 @@ 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.
 	 */