MIPS: head.S: Init fw_passed_dtb to builtin DTB

Init the 'fw_passed_dtb' pointer to the buit-in Device Tree blob when it
has been compiled in with CONFIG_BUILTIN_DTB.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S
index 3b02ffe46304bf157ce14a9afd83b553da53522f..7dd234e788e63ec4945d6fd8b3f03f208fc17ebe 100644 (file)
--- a/arch/mips/kernel/head.S
+++ b/arch/mips/kernel/head.S
@@ -111,6 +111,12 @@ NESTED(kernel_entry, 16, sp)                       # kernel entry point
        move            t2, a1
        beq             a0, t1, dtb_found
 
+#ifdef CONFIG_BUILTIN_DTB
+       PTR_LA  t2, __dtb_start
+       PTR_LA  t1, __dtb_end
+       bne             t1, t2, dtb_found
+#endif /* CONFIG_BUILTIN_DTB */
+
        li              t2, 0
 dtb_found:
 #endif /* CONFIG_USE_OF */