IXP4xx: add Ethernet and NPE support for IXP43x CPU.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
diff --git a/arch/arm/mach-ixp4xx/ixp4xx_npe.c b/arch/arm/mach-ixp4xx/ixp4xx_npe.c
index c73a94d..2523102 100644
--- a/arch/arm/mach-ixp4xx/ixp4xx_npe.c
+++ b/arch/arm/mach-ixp4xx/ixp4xx_npe.c
@@ -575,8 +575,8 @@
 		for (i = 0; i < image->size; i++)
 			image->data[i] = swab32(image->data[i]);
 
-	if (!cpu_is_ixp46x() && ((image->id >> 28) & 0xF /* device ID */)) {
-		print_npe(KERN_INFO, npe, "IXP46x firmware ignored on "
+	if (cpu_is_ixp42x() && ((image->id >> 28) & 0xF /* device ID */)) {
+		print_npe(KERN_INFO, npe, "IXP43x/IXP46x firmware ignored on "
 			  "IXP42x\n");
 		goto err;
 	}
@@ -596,7 +596,7 @@
 		  "revision 0x%X:%X\n", (image->id >> 16) & 0xFF,
 		  (image->id >> 8) & 0xFF, image->id & 0xFF);
 
-	if (!cpu_is_ixp46x()) {
+	if (cpu_is_ixp42x()) {
 		if (!npe->id)
 			instr_size = NPE_A_42X_INSTR_SIZE;
 		else