diff --git a/cpuid_arm64.c b/cpuid_arm64.c
index fd6a9bd47..0f1a12574 100644
--- a/cpuid_arm64.c
+++ b/cpuid_arm64.c
@@ -82,6 +82,7 @@ size_t length64=sizeof(value64);
 #define CPU_AMPERE1      25
 // Apple
 #define CPU_VORTEX       13
+#define CPU_VORTEXM4     26 
 // Fujitsu
 #define CPU_A64FX	 15
 // Phytium
@@ -113,7 +114,8 @@ static char *cpuname[] = {
   "FT2000",
   "CORTEXA76",
   "NEOVERSEV2",
-  "AMPERE1"
+  "AMPERE1",
+  "VORTEXM4",
 };
 
 static char *cpuname_lower[] = {
@@ -143,7 +145,7 @@ static char *cpuname_lower[] = {
   "cortexa76",
   "neoversev2",
   "ampere1",
-  "ampere1a"
+  "vortexm4"
 };
 
 static int cpulowperf=0;
@@ -400,7 +402,7 @@ int detect(void)
 	if (value64 ==131287967|| value64 == 458787763 ) return CPU_VORTEX; //A12/M1
 	if (value64 == 3660830781) return CPU_VORTEX; //A15/M2
         if (value64 == 2271604202) return CPU_VORTEX; //A16/M3
-        if (value64 == 1867590060) return CPU_VORTEX; //M4
+        if (value64 == 1867590060) return CPU_VORTEXM4; //M4
 #else
 #ifdef OS_WINDOWS
 	HKEY reghandle;
@@ -740,6 +742,27 @@ void get_cpuconfig(void)
 		length64 = sizeof(value64);
 		sysctlbyname("hw.l2cachesize",&value64,&length64,NULL,0);
 		printf("#define L2_SIZE	     %lld       \n",value64);
+#endif	
+		printf("#define DTB_DEFAULT_ENTRIES  64       \n");
+		printf("#define DTB_SIZE             4096     \n");
+		break;
+	    case CPU_VORTEXM4:
+		printf("#define VORTEXM4		      \n");
+		printf("#define HAVE_SME 1		      \n");
+#ifdef __APPLE__
+		length64 = sizeof(value64);
+		sysctlbyname("hw.l1icachesize",&value64,&length64,NULL,0);
+		printf("#define L1_CODE_SIZE	     %lld       \n",value64);
+		length64 = sizeof(value64);
+		sysctlbyname("hw.cachelinesize",&value64,&length64,NULL,0);
+		printf("#define L1_CODE_LINESIZE     %lld       \n",value64);
+		printf("#define L1_DATA_LINESIZE     %lld       \n",value64);
+		length64 = sizeof(value64);
+		sysctlbyname("hw.l1dcachesize",&value64,&length64,NULL,0);
+		printf("#define L1_DATA_SIZE	     %lld       \n",value64);
+		length64 = sizeof(value64);
+		sysctlbyname("hw.l2cachesize",&value64,&length64,NULL,0);
+		printf("#define L2_SIZE	     %lld       \n",value64);
 #endif	
 		printf("#define DTB_DEFAULT_ENTRIES  64       \n");
 		printf("#define DTB_SIZE             4096     \n");