am33xx: report silicon revision instead of code

As revision code 1 is for silicon revision 2.0, it is easily confused with
silicon revision 1.0.

Device type report also reworked in same style.

Signed-off-by: Sergey Alyoshin <alyoshin.s@gmail.com>

arch/arm/cpu/armv7/am33xx/sys_info.c

@@ -79,12 +79,24 @@ u32 get_sysboot_value(void)
 }
 
 #ifdef CONFIG_DISPLAY_CPUINFO
+static char *cpu_revs[] = {
+		"1.0",
+		"2.0",
+		"2.1"};
+
+
+static char *dev_types[] = {
+		"TST",
+		"EMU",
+		"HS",
+		"GP"};
+
 /**
  * Print CPU information
  */
 int print_cpuinfo(void)
 {
-	char *cpu_s, *sec_s;
+	char *cpu_s, *sec_s, *rev_s;
 
 	switch (get_cpu_type()) {
 	case AM335X:
@@ -94,28 +106,21 @@ int print_cpuinfo(void)
 		cpu_s = "TI81XX";
 		break;
 	default:
-		cpu_s = "Unknown cpu type";
+		cpu_s = "Unknown CPU type";
 		break;
 	}
 
-	switch (get_device_type()) {
-	case TST_DEVICE:
-		sec_s = "TST";
-		break;
-	case EMU_DEVICE:
-		sec_s = "EMU";
-		break;
-	case HS_DEVICE:
-		sec_s = "HS";
-		break;
-	case GP_DEVICE:
-		sec_s = "GP";
-		break;
-	default:
+	if (get_cpu_rev() < ARRAY_SIZE(cpu_revs))
+		rev_s = cpu_revs[get_cpu_rev()];
+	else
+		rev_s = "?";
+
+	if (get_device_type() < ARRAY_SIZE(dev_types))
+		sec_s = dev_types[get_device_type()];
+	else
 		sec_s = "?";
-	}
 
-	printf("%s-%s rev %d\n", cpu_s, sec_s, get_cpu_rev());
+	printf("%s-%s rev %s\n", cpu_s, sec_s, rev_s);
 
 	return 0;
 }