[MIPS] Add missing silicon revisions for BCM112x

Recent versions of the BCM112X processors aren't recognized by Linux
(preventing Linux from booting on those processors).  This patch adds
support for those that are missing.
Signed-off-by: Mark Mason <mason@broadcom.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/sibyte/sb1250/setup.c

@@ -141,6 +141,18 @@ static int __init setup_bcm112x(void)
 		periph_rev = 3;
 		pass_str = "A2";
 		break;
+	case K_SYS_REVISION_BCM112x_A3:
+		periph_rev = 3;
+		pass_str = "A3";
+		break;
+	case K_SYS_REVISION_BCM112x_A4:
+		periph_rev = 3;
+		pass_str = "A4";
+		break;
+	case K_SYS_REVISION_BCM112x_B0:
+		periph_rev = 3;
+		pass_str = "B0";
+		break;
 	default:
 		printk("Unknown %s rev %x\n", soc_str, soc_pass);
 		ret = 1;

include/asm-mips/sibyte/sb1250_scd.h

@@ -84,6 +84,7 @@
 #define K_SYS_REVISION_BCM112x_A2	0x21
 #define K_SYS_REVISION_BCM112x_A3	0x22
 #define K_SYS_REVISION_BCM112x_A4	0x23
+#define K_SYS_REVISION_BCM112x_B0	0x30
 
 #define K_SYS_REVISION_BCM1480_S0	0x01
 #define K_SYS_REVISION_BCM1480_A1	0x02