sparc32: introduce sparc32_start_kernel called from head_32.S

This gives us a C hook before we call start_kernel()

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

arch/sparc/kernel/setup_32.c

@@ -32,6 +32,7 @@
 #include <linux/cpu.h>
 #include <linux/kdebug.h>
 #include <linux/export.h>
+#include <linux/start_kernel.h>
 
 #include <asm/io.h>
 #include <asm/processor.h>
@@ -244,6 +245,15 @@ struct tt_entry *sparc_ttable;
 
 struct pt_regs fake_swapper_regs;
 
+/* Called from head_32.S - before we have setup anything
+ * in the kernel. Be very careful with what you do here.
+ */
+void __init sparc32_start_kernel(struct linux_romvec *rp)
+{
+	prom_init(rp);
+	start_kernel();
+}
+
 void __init setup_arch(char **cmdline_p)
 {
 	int i;