Move "common" Open Firmware parts of the loader used only on PowerPC to

the powerpc/ subdirectory. These have never used by SPARC and we have
no other (and almost certainly will have no other) Open Firmware platforms.
This makes the directory structure simpler and lets us avoid some
cargo-cult MI patterns on code that is, and always was,
architecture-specific.

stand/ofw/common/Makefile.inc

@@ -1,3 +0,0 @@
-# $FreeBSD$
-
-SRCS+=	main.c

stand/ofw/libofw/Makefile

@@ -4,7 +4,7 @@
 
 LIB=		ofw
 
-SRCS=	devicename.c elf_freebsd.c ofw_console.c ofw_copy.c ofw_disk.c \
+SRCS=	devicename.c ofw_console.c ofw_copy.c ofw_disk.c \
 	ofw_memory.c ofw_module.c ofw_net.c ofw_reboot.c \
 	ofw_time.c openfirm.c
 .PATH:	${ZFSSRC}
@@ -13,10 +13,6 @@ SRCS+=  devicename_stubs.c
 # Pick up the bootstrap header for some interface items
 CFLAGS+=	-I${LDRSRC}
 
-.if ${MACHINE_CPUARCH} == "powerpc"
-SRCS+=		ppc64_elf_freebsd.c
-.endif
-
 .ifdef(BOOT_DISK_DEBUG)
 # Make the disk code more talkative
 CFLAGS+= -DDISK_DEBUG

stand/ofw/libofw/libofw.h

@@ -62,18 +62,10 @@ void	ofw_memmap(int);
 struct preloaded_file;
 struct file_format;
 
-int	ofw_elf_loadfile(char *, vm_offset_t, struct preloaded_file **);
-int	ofw_elf_exec(struct preloaded_file *);
-
 /* MD code implementing MI interfaces */
 vm_offset_t md_load(char *args, vm_offset_t *modulep, vm_offset_t *dtb);
 vm_offset_t md_load64(char *args, vm_offset_t *modulep, vm_offset_t *dtb);
 
-extern struct file_format	ofw_elf;
-#ifdef __powerpc__
-extern struct file_format	ofw_elf64;
-#endif
-
 extern void	reboot(void);
 
 struct ofw_reg

stand/powerpc/ofw/Makefile

@@ -17,7 +17,7 @@ NEWVERSWHAT=	"Open Firmware loader" ${MACHINE_ARCH}
 INSTALLFLAGS=	-b
 
 # Architecture-specific loader code
-SRCS=		conf.c vers.c start.c
+SRCS=		conf.c vers.c main.c elf_freebsd.c ppc64_elf_freebsd.c start.c
 SRCS+=		ucmpdi2.c
 
 .include	"${BOOTSRC}/fdt.mk"
@@ -38,10 +38,6 @@ CFLAGS+=	-DRELOC=${RELOC}
 
 LDFLAGS=	-nostdlib -static -T ${.CURDIR}/ldscript.powerpc
 
-# Pull in common loader code
-.PATH:		${BOOTSRC}/ofw/common
-.include	"${BOOTSRC}/ofw/common/Makefile.inc"
-
 # Open Firmware standalone support library
 LIBOFW=		${BOOTOBJ}/ofw/libofw/libofw.a
 CFLAGS+=	-I${BOOTSRC}/ofw/libofw

stand/powerpc/ofw/conf.c

@@ -97,6 +97,9 @@ struct netif_driver *netif_drivers[] = {
  * rather than reading the file go first.
  */
 
+struct file_format ofw_elf;
+struct file_format ofw_elf64;
+
 struct file_format *file_formats[] = {
     &ofw_elf,
     &ofw_elf64,

stand/powerpc/ofw/elf_freebsd.c

@@ -89,8 +89,8 @@ __elfN(ofw_exec)(struct preloaded_file *fp)
 	dev_cleanup();
 	if (dtbp != 0) {
 		OF_quiesce();
-		((int (*)(u_long, u_long, u_long, void *, u_long))entry)(dtbp, 0, 0,
-		    (void *)mdp, sizeof(mdp));
+		((int (*)(u_long, u_long, u_long, void *, u_long))entry)(dtbp,
+		    0, 0, (void *)mdp, 0xfb5d104d);
 	} else {
 		OF_chain((void *)reloc, end - (char *)reloc, (void *)entry,
 		    (void *)mdp, 0xfb5d104d);