diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
index 9b390f1b5920d9fc88c84bb18813777e4d41f433..5403eb3adde8d28416772d0ae0b97be6fd52f19f 100644
--- a/arch/arm64/include/asm/cputype.h
+++ b/arch/arm64/include/asm/cputype.h
@@ -100,6 +100,7 @@
 #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
@@ -153,6 +154,7 @@
 #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_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)
 
 #ifndef __ASSEMBLY__
 
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index e8f3ff4c8658b6d38ba2ae403eaa8f5720a7d455..09f06599a518eabb910291052242db3ef37984d6 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -459,6 +459,19 @@ static void __init fdt_enforce_memory_region(void)
 		memblock_cap_memory_ranges(usablemem.regions, usablemem.cnt);
 }
 
+#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 = -(s64)PAGE_OFFSET;
@@ -468,7 +481,10 @@ 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
 	/*
 	 * Ensure that the linear region takes up exactly half of the kernel
 	 * virtual address space. This way, we can distinguish a linear address