[Gc-linux-cvs] linux/arch/ppc/boot/simple Makefile,1.4,1.5 head.S,1.1.1.1,1.2

[<aot...@us...>]

Update of /cvsroot/gc-linux/linux/arch/ppc/boot/simple
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv24035/arch/ppc/boot/simple

Modified Files:
	Makefile head.S 
Log Message:
Merged 2.6.5

Index: Makefile
===================================================================
RCS file: /cvsroot/gc-linux/linux/arch/ppc/boot/simple/Makefile,v
retrieving revision 1.4
retrieving revision 1.5
diff -u -d -r1.4 -r1.5
--- Makefile	18 Feb 2004 20:01:57 -0000	1.4
+++ Makefile	24 Apr 2004 18:31:43 -0000	1.5
@@ -26,11 +26,12 @@
 utils				:= $(boot)/utils
 bootlib				:= $(boot)/lib
 images				:= $(boot)/images
+of1275				:= $(boot)/of1275
 tftpboot			:= /tftpboot
 
 # Normally, we use the 'misc.c' file for decompress_kernel and
 # whatnot.  Sometimes we need to override this however.
-misc-y	:= misc.o ../common/bootinfo.o
+misc-y	:= misc.o
 
 # Normally, we have our images end in .elf, but something we want to
 # change this.
@@ -89,6 +90,7 @@
 
 # Overrides previous assingment
      extra.o-$(CONFIG_PPLUS)		:= legacy.o
+     extra.o-$(CONFIG_LOPEC)		:= mpc10x_memory.o
 
       zimage-$(pcore)			:= zImage-STRIPELF
 zimageinitrd-$(pcore)			:= zImage.initrd-STRIPELF
@@ -96,6 +98,12 @@
          end-$(pcore)			:= pcore
    cacheflag-$(pcore)			:= -include $(clear_L2_L3)
 
+      zimage-$(CONFIG_PPC_PREP)		:= zImage-PPLUS
+zimageinitrd-$(CONFIG_PPC_PREP)		:= zImage.initrd-PPLUS
+     extra.o-$(CONFIG_PPC_PREP)		:= legacy.o
+        misc-$(CONFIG_PPC_PREP)		+= misc-prep.o mpc10x_memory.o
+         end-$(CONFIG_PPC_PREP)		:= prep
+
          end-$(CONFIG_SANDPOINT)	:= sandpoint
    cacheflag-$(CONFIG_SANDPOINT)	:= -include $(clear_L2_L3)
 
@@ -106,7 +114,7 @@
         misc-$(CONFIG_SPRUCE)		+= misc-spruce.o
 
 # SMP images should have a '.smp' suffix.
-         end-$(CONFIG_SMP)		+= .smp
+         end-$(CONFIG_SMP)             := $(end-y).smp
 
 # This is a treeboot that needs init functions until the
 # boot rom is sorted out (i.e. this is short lived)
@@ -139,6 +147,9 @@
 endif
 
 LIBS				:= $(common)/lib.a $(bootlib)/lib.a
+ifeq ($(CONFIG_PPC_PREP),y)
+LIBS 				+= $(of1275)/lib.a
+endif
 
 OBJS				:= $(addprefix $(obj)/,$(boot-y))
 
@@ -200,10 +211,10 @@
 	$(MKTREE) $(obj)/zvmlinux.initrd $(images)/zImage.initrd.$(end-y) \
 		$(ENTRYPOINT)
 
-$(images)/zImage-PPLUS: $(obj)/zvmlinux $(MKPREP) $(MKBUGBOOT)
-	$(MKPREP) -pbp $(obj)/zvmlinux $(images)/zImage.pplus
+$(images)/zImage-PPLUS: $(obj)/zvmlinux $(utils)/mkprep $(MKBUGBOOT)
+	$(MKPREP) -pbp $(obj)/zvmlinux $(images)/zImage.$(end-y)
 	$(MKBUGBOOT) $(obj)/zvmlinux $(images)/zImage.bugboot
 
-$(images)/zImage.initrd-PPLUS: $(obj)/zvmlinux.initrd $(MKPREP) $(MKBUGBOOT)
-	$(MKPREP) -pbp $(obj)/zvmlinux.initrd $(images)/zImage.initrd.pplus
+$(images)/zImage.initrd-PPLUS: $(obj)/zvmlinux.initrd $(utils)/mkprep $(MKBUGBOOT)
+	$(MKPREP) -pbp $(obj)/zvmlinux.initrd $(images)/zImage.initrd.$(end-y)
 	$(MKBUGBOOT) $(obj)/zvmlinux.initrd $(images)/zImage.initrd.bugboot

Index: head.S
===================================================================
RCS file: /cvsroot/gc-linux/linux/arch/ppc/boot/simple/head.S,v
retrieving revision 1.1.1.1
retrieving revision 1.2
diff -u -d -r1.1.1.1 -r1.2
--- head.S	23 Jan 2004 03:26:19 -0000	1.1.1.1
+++ head.S	24 Apr 2004 18:31:43 -0000	1.2
@@ -7,7 +7,7 @@
  *	   tr...@mv...
  * Derived from arch/ppc/boot/prep/head.S (Cort Dougan, many others).
  *
- * 2001-2003 (c) MontaVista, Software, Inc.  This file is licensed under
+ * 2001-2004 (c) MontaVista, Software, Inc.  This file is licensed under
  * the terms of the GNU General Public License version 2.  This program
  * is licensed "as is" without any warranty of any kind, whether express
  * or implied.
@@ -57,10 +57,11 @@
 	isync
 #endif
 
-#if defined(CONFIG_MBX) || defined(CONFIG_RPX6)
+#if defined(CONFIG_MBX) || defined(CONFIG_RPX6) || defined(CONFIG_PPC_PREP)
 	mr	r29,r3	/* On the MBX860, r3 is the board info pointer.
-			 * On the RPXSUPER, r3 points to the
-			 * NVRAM configuration keys.
+			 * On the RPXSUPER, r3 points to the NVRAM
+			 * configuration keys.
+			 * On PReP, r3 is the pointer to the residual data.
 			 */
 #endif
 
@@ -76,9 +77,39 @@
 	stw	r5, 0x2024(r4)
 #endif
 #ifdef CONFIG_6xx
+	/* On PReP we must look at the OpenFirmware pointer and sanity
+	 * test it.  On other platforms, we disable the MMU right now
+	 * and other bits.
+	 */
+#ifdef CONFIG_PPC_PREP
+/*
+ * Save the OF pointer to r25, but only if the entry point is in a sane
+ * location; if not we store 0.  If there is no entry point, or it is
+ * invalid, we establish the default MSR value immediately.  Otherwise,
+ * we defer doing that, to allow OF functions to be called, until we
+ * begin uncompressing the kernel.
+ */
+	lis	r8,0x0fff		/* r8 = 0x0fffffff */
+	ori	r8,r8,0xffff
+
+	subc	r8,r8,r5		/* r8 = (r5 <= r8) ? ~0 : 0 */
+	subfe	r8,r8,r8
+	nand	r8,r8,r8
+
+	and.	r5,r5,r8		/* r5 will be cleared if (r5 > r8) */
+	bne+	haveOF
+
+	li	r8,MSR_IP|MSR_FP	/* Not OF: set MSR immediately */
+  	mtmsr	r8
+	isync
+haveOF:
+	mr	r25,r5
+#else
 	bl	disable_6xx_mmu
+#endif
 #ifndef CONFIG_GAMECUBE
 	bl	disable_6xx_l1cache
+
 	CLEAR_CACHES
 #endif
 #endif
@@ -107,7 +138,7 @@
 	mr	r3, r29
 #endif
 
-#if defined(CONFIG_MBX) || defined(CONFIG_RPX6)
+#if defined(CONFIG_MBX) || defined(CONFIG_RPX6) || defined(CONFIG_PPC_PREP)
 	mr	r4,r29	/* put the board info pointer where the relocate
 			 * routine will find it
 			 */
@@ -120,7 +151,6 @@
 
 	/* Get the load address.
 	*/
-	
 #ifdef CONFIG_GAMECUBE
 	clrlwi r3, r3, 3
 #endif