From 93d3921042988317e94b1bcc2e19844efe0b7356 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= <clg@fr.ibm.com>
Date: Thu, 24 Apr 2014 09:23:36 +0200
Subject: powerpc/boot: Define a routine to enter prom
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This patch defines a 'prom' routine similar to 'enter_prom' in the
kernel.
The difference is in the MSR which is built before entering prom. Big
endian order is enforced as in the kernel but 32bit mode is not. It
prepares ground for the next patches which will introduce Little endian
order.
Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
arch/powerpc/boot/oflib.c | 6 ++++++
1 file changed, 6 insertions(+)
(limited to 'arch/powerpc/boot/oflib.c')
diff --git a/arch/powerpc/boot/oflib.c b/arch/powerpc/boot/oflib.c
index cdfe762d2b2b..46c98a47d949 100644
--- a/arch/powerpc/boot/oflib.c
+++ b/arch/powerpc/boot/oflib.c
@@ -27,11 +27,17 @@ struct prom_args {
__be32 args[10]; /* Input/output arguments. */
};
+#ifdef __powerpc64__
+extern int prom(void *);
+#else
static int (*prom) (void *);
+#endif
void of_init(void *promptr)
{
+#ifndef __powerpc64__
prom = (int (*)(void *))promptr;
+#endif
}
#define ADDR(x) (u32)(unsigned long)(x)
--
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