sparc,leon: Introduce the sparc-leon CPU type.

Add sparc_leon enum, M_LEON|M_LEON3_SOC machine. Add compilation of
leon.c in mm and kernel
if CONFIG_SPARC_LEON is defined. Add sparc_leon dependent
initialization to switch statements + head.S.

Signed-off-by: Konrad Eisele <konrad@gaisler.com>
Reviewed-by:   Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/setup_32.c b/arch/sparc/kernel/setup_32.c
index 998cadb..16a47ff 100644
--- a/arch/sparc/kernel/setup_32.c
+++ b/arch/sparc/kernel/setup_32.c
@@ -235,6 +235,8 @@
 		sparc_cpu_model = sun4e;
 	if (!strcmp(&cputypval,"sun4u"))
 		sparc_cpu_model = sun4u;
+	if (!strncmp(&cputypval, "leon" , 4))
+		sparc_cpu_model = sparc_leon;
 
 	printk("ARCH: ");
 	switch(sparc_cpu_model) {
@@ -256,6 +258,9 @@
 	case sun4u:
 		printk("SUN4U\n");
 		break;
+	case sparc_leon:
+		printk("LEON\n");
+		break;
 	default:
 		printk("UNKNOWN!\n");
 		break;