[POWERPC] Factor zImage's 44x reset code out of ebony.c
The ebony_exit() function which resets the Ebony board should in fact
be common to most if not all 44x boards. This moves the function out
into 44x.c, renaming it, so it can be used by other 44x platforms.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/boot/44x.c b/arch/powerpc/boot/44x.c
index d51377d..bc3f570 100644
--- a/arch/powerpc/boot/44x.c
+++ b/arch/powerpc/boot/44x.c
@@ -38,3 +38,19 @@
dt_fixup_memory(0, memsize);
}
+
+#define SPRN_DBCR0 0x134
+#define DBCR0_RST_SYSTEM 0x30000000
+
+void ibm44x_dbcr_reset(void)
+{
+ unsigned long tmp;
+
+ asm volatile (
+ "mfspr %0,%1\n"
+ "oris %0,%0,%2@h\n"
+ "mtspr %1,%0"
+ : "=&r"(tmp) : "i"(SPRN_DBCR0), "i"(DBCR0_RST_SYSTEM)
+ );
+
+}
diff --git a/arch/powerpc/boot/44x.h b/arch/powerpc/boot/44x.h
index 7b129ad..0da4abf 100644
--- a/arch/powerpc/boot/44x.h
+++ b/arch/powerpc/boot/44x.h
@@ -11,6 +11,8 @@
#define _PPC_BOOT_44X_H_
void ibm44x_fixup_memsize(void);
+
+void ibm44x_dbcr_reset(void);
void ebony_init(void *mac0, void *mac1);
#endif /* _PPC_BOOT_44X_H_ */
diff --git a/arch/powerpc/boot/ebony.c b/arch/powerpc/boot/ebony.c
index b1251ee..6349858 100644
--- a/arch/powerpc/boot/ebony.c
+++ b/arch/powerpc/boot/ebony.c
@@ -102,26 +102,10 @@
dt_fixup_mac_addresses(ebony_mac0, ebony_mac1);
}
-#define SPRN_DBCR0 0x134
-#define DBCR0_RST_SYSTEM 0x30000000
-
-static void ebony_exit(void)
-{
- unsigned long tmp;
-
- asm volatile (
- "mfspr %0,%1\n"
- "oris %0,%0,%2@h\n"
- "mtspr %1,%0"
- : "=&r"(tmp) : "i"(SPRN_DBCR0), "i"(DBCR0_RST_SYSTEM)
- );
-
-}
-
void ebony_init(void *mac0, void *mac1)
{
platform_ops.fixups = ebony_fixups;
- platform_ops.exit = ebony_exit;
+ platform_ops.exit = ibm44x_dbcr_reset;
ebony_mac0 = mac0;
ebony_mac1 = mac1;
ft_init(_dtb_start, _dtb_end - _dtb_start, 32);