Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-merge

Makefile

@@ -151,7 +151,7 @@ export srctree objtree VPATH TOPDIR
 SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
 				  -e s/arm.*/arm/ -e s/sa110/arm/ \
 				  -e s/s390x/s390/ -e s/parisc64/parisc/ \
-				  -e s/ppc64/powerpc/ )
+				  -e s/ppc.*/powerpc/ )
 
 # Cross compiling and selecting different set of gcc/bin-utils
 # ---------------------------------------------------------------------------

arch/powerpc/Kconfig

@@ -78,17 +78,6 @@ config PPC_UDBG_16550
 	bool
 	default n
 
-config CRASH_DUMP
-	bool "kernel crash dumps (EXPERIMENTAL)"
-	depends on PPC_MULTIPLATFORM
-	depends on EXPERIMENTAL
-	help
-	  Build a kernel suitable for use as a kdump capture kernel.
-	  The kernel will be linked at a different address than normal, and
-	  so can only be used for Kdump.
-
-	  Don't change this unless you know what you are doing.
-
 config GENERIC_TBSYNC
 	bool
 	default y if PPC32 && SMP
@@ -584,6 +573,16 @@ config KEXEC
 	  support.  As of this writing the exact hardware interface is
 	  strongly in flux, so no good recommendation can be made.
 
+config CRASH_DUMP
+	bool "kernel crash dumps (EXPERIMENTAL)"
+	depends on PPC_MULTIPLATFORM && PPC64 && EXPERIMENTAL
+	help
+	  Build a kernel suitable for use as a kdump capture kernel.
+	  The kernel will be linked at a different address than normal, and
+	  so can only be used for Kdump.
+
+	  Don't change this unless you know what you are doing.
+
 config EMBEDDEDBOOT
 	bool
 	depends on 8xx || 8260

arch/powerpc/boot/Makefile

@@ -27,6 +27,7 @@ BOOTCFLAGS	:= $(HOSTCFLAGS) -fno-builtin -nostdinc -isystem \
 BOOTAFLAGS	:= -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
 OBJCOPYFLAGS    := contents,alloc,load,readonly,data
 OBJCOPY_COFF_ARGS := -O aixcoff-rs6000 --set-start 0x500000
+OBJCOPY_MIB_ARGS  := -O aixcoff-rs6000 -R .stab -R .stabstr -R .comment
 
 zlib       := infblock.c infcodes.c inffast.c inflate.c inftrees.c infutil.c
 zlibheader := infblock.h infcodes.h inffast.h inftrees.h infutil.h
@@ -90,11 +91,11 @@ gz-sec  = $(foreach section, $(1), $(patsubst %,$(obj)/kernel-%.gz, $(section)))
 hostprogs-y		:= addnote addRamDisk hack-coff
 
 targets += zImage.vmode zImage.initrd.vmode zImage zImage.initrd \
-	   zImage.coff zImage.initrd.coff \
+	   zImage.coff zImage.initrd.coff miboot.image miboot.initrd.image \
 	   $(patsubst $(obj)/%,%, $(call obj-sec, $(required) $(initrd))) \
 	   $(patsubst $(obj)/%,%, $(call src-sec, $(required) $(initrd))) \
 	   $(patsubst $(obj)/%,%, $(call gz-sec, $(required) $(initrd))) \
-	   vmlinux.initrd
+	   vmlinux.initrd dummy.o
 extra-y			:= initrd.o
 
 quiet_cmd_ramdisk = RAMDISK $@
@@ -116,6 +117,10 @@ quiet_cmd_addsection = ADDSEC  $@
 quiet_cmd_addnote = ADDNOTE $@
       cmd_addnote = $(obj)/addnote $@
 
+quiet_cmd_gen-miboot = GEN     $@
+      cmd_gen-miboot = $(OBJCOPY) $(OBJCOPY_MIB_ARGS) \
+		       --add-section=$1=$(word 2, $^) $< $@
+
 quiet_cmd_gencoff = COFF    $@
       cmd_gencoff = $(OBJCOPY) $(OBJCOPY_COFF_ARGS) $@ && \
 		    $(obj)/hack-coff $@
@@ -141,19 +146,25 @@ $(obj)/zImage.initrd.vmode $(obj)/zImage.initrd.coff: obj-boot += $(call obj-sec
 $(obj)/zImage.initrd.vmode: $(call obj-sec, $(required) $(initrd)) $(obj-boot) $(srctree)/$(src)/zImage.lds
 	$(call cmd,bootld,$(obj-boot),zImage.lds)
 
-# For 32-bit powermacs, build the COFF images as well as the ELF images.
+# For 32-bit powermacs, build the COFF and miboot images
+# as well as the ELF images.
 coffimage-$(CONFIG_PPC_PMAC)-$(CONFIG_PPC32) := $(obj)/zImage.coff
 coffrdimg-$(CONFIG_PPC_PMAC)-$(CONFIG_PPC32) := $(obj)/zImage.initrd.coff
+mibootimg-$(CONFIG_PPC_PMAC)-$(CONFIG_PPC32) := $(obj)/miboot.image
+mibrdimg-$(CONFIG_PPC_PMAC)-$(CONFIG_PPC32)  := $(obj)/miboot.initrd.image
 
-$(obj)/zImage: $(obj)/zImage.vmode $(obj)/addnote $(coffimage-y-y)
+$(obj)/zImage: $(obj)/zImage.vmode $(obj)/addnote $(coffimage-y-y) \
+			$(mibootimg-y-y)
 	@cp -f $< $@
 	$(call if_changed,addnote)
 
-$(obj)/zImage.initrd: $(obj)/zImage.initrd.vmode $(obj)/addnote $(coffrdimg-y-y)
+$(obj)/zImage.initrd: $(obj)/zImage.initrd.vmode $(obj)/addnote \
+			$(coffrdimg-y-y) $(mibrdimg-y-y)
 	@cp -f $< $@
 	$(call if_changed,addnote)
 
-$(obj)/zImage.coff: $(call obj-sec, $(required)) $(obj-boot) $(srctree)/$(src)/zImage.coff.lds $(obj)/hack-coff
+$(obj)/zImage.coff: $(call obj-sec, $(required)) $(obj-boot) \
+			$(srctree)/$(src)/zImage.coff.lds $(obj)/hack-coff
 	$(call cmd,bootld,$(obj-boot),zImage.coff.lds)
 	$(call cmd,gencoff)
 
@@ -162,6 +173,12 @@ $(obj)/zImage.initrd.coff: $(call obj-sec, $(required) $(initrd)) $(obj-boot) \
 	$(call cmd,bootld,$(obj-boot),zImage.coff.lds)
 	$(call cmd,gencoff)
 
+$(obj)/miboot.image: $(obj)/dummy.o $(obj)/vmlinux.gz
+	$(call cmd,gen-miboot,image)
+
+$(obj)/miboot.initrd.image: $(obj)/miboot.image $(images)/ramdisk.image.gz
+	$(call cmd,gen-miboot,initrd)
+
 #-----------------------------------------------------------
 # build u-boot images
 #-----------------------------------------------------------

arch/powerpc/boot/dummy.c

+int main(void)
+{
+	return 0;
+}

arch/powerpc/configs/pmac32_defconfig

 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.15-rc5
-# Tue Dec 13 17:24:05 2005
+# Linux kernel version: 2.6.15
+# Sat Jan 14 16:26:08 2006
 #
 # CONFIG_PPC64 is not set
 CONFIG_PPC32=y
@@ -15,11 +15,15 @@ CONFIG_EARLY_PRINTK=y
 CONFIG_GENERIC_NVRAM=y
 CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
 CONFIG_ARCH_MAY_HAVE_PC_FDC=y
+CONFIG_PPC_OF=y
+# CONFIG_PPC_UDBG_16550 is not set
+# CONFIG_CRASH_DUMP is not set
+# CONFIG_GENERIC_TBSYNC is not set
 
 #
 # Processor support
 #
-CONFIG_6xx=y
+CONFIG_CLASSIC32=y
 # CONFIG_PPC_52xx is not set
 # CONFIG_PPC_82xx is not set
 # CONFIG_PPC_83xx is not set
@@ -28,6 +32,7 @@ CONFIG_6xx=y
 # CONFIG_8xx is not set
 # CONFIG_E200 is not set
 # CONFIG_E500 is not set
+CONFIG_6xx=y
 CONFIG_PPC_FPU=y
 CONFIG_ALTIVEC=y
 CONFIG_PPC_STD_MMU=y
@@ -53,17 +58,18 @@ CONFIG_POSIX_MQUEUE=y
 # CONFIG_BSD_PROCESS_ACCT is not set
 CONFIG_SYSCTL=y
 # CONFIG_AUDIT is not set
-CONFIG_HOTPLUG=y
-CONFIG_KOBJECT_UEVENT=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_INITRAMFS_SOURCE=""
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
 # CONFIG_EMBEDDED is not set
 CONFIG_KALLSYMS=y
 # CONFIG_KALLSYMS_ALL is not set
 # CONFIG_KALLSYMS_EXTRA_PASS is not set
+CONFIG_HOTPLUG=y
 CONFIG_PRINTK=y
 CONFIG_BUG=y
+CONFIG_ELF_CORE=y
 CONFIG_BASE_FULL=y
 CONFIG_FUTEX=y
 CONFIG_EPOLL=y
@@ -72,8 +78,10 @@ CONFIG_CC_ALIGN_FUNCTIONS=0
 CONFIG_CC_ALIGN_LABELS=0
 CONFIG_CC_ALIGN_LOOPS=0
 CONFIG_CC_ALIGN_JUMPS=0
+CONFIG_SLAB=y
 # CONFIG_TINY_SHMEM is not set
 CONFIG_BASE_SMALL=0
+# CONFIG_SLOB is not set
 
 #
 # Loadable module support
@@ -113,13 +121,10 @@ CONFIG_PPC_MULTIPLATFORM=y
 # CONFIG_APUS is not set
 # CONFIG_PPC_CHRP is not set
 CONFIG_PPC_PMAC=y
-CONFIG_PPC_OF=y
 CONFIG_MPIC=y
 # CONFIG_PPC_RTAS is not set
 # CONFIG_MMIO_NVRAM is not set
-# CONFIG_CRASH_DUMP is not set
 CONFIG_PPC_MPC106=y
-# CONFIG_GENERIC_TBSYNC is not set
 CONFIG_CPU_FREQ=y
 CONFIG_CPU_FREQ_TABLE=y
 # CONFIG_CPU_FREQ_DEBUG is not set
@@ -195,6 +200,11 @@ CONFIG_CARDBUS=y
 # PC-card bridges
 #
 CONFIG_YENTA=m
+CONFIG_YENTA_O2=y
+CONFIG_YENTA_RICOH=y
+CONFIG_YENTA_TI=y
+CONFIG_YENTA_ENE_TUNE=y
+CONFIG_YENTA_TOSHIBA=y
 # CONFIG_PD6729 is not set
 # CONFIG_I82092 is not set
 CONFIG_PCCARD_NONSTATIC=m
@@ -464,7 +474,7 @@ CONFIG_IEEE80211_CRYPT_TKIP=m
 #
 # CONFIG_STANDALONE is not set
 CONFIG_PREVENT_FIRMWARE_BUILD=y
-CONFIG_FW_LOADER=m
+CONFIG_FW_LOADER=y
 # CONFIG_DEBUG_DRIVER is not set
 
 #
@@ -491,7 +501,7 @@ CONFIG_PROC_EVENTS=y
 # Block devices
 #
 # CONFIG_BLK_DEV_FD is not set
-CONFIG_MAC_FLOPPY=y
+CONFIG_MAC_FLOPPY=m
 # CONFIG_BLK_CPQ_DA is not set
 # CONFIG_BLK_CPQ_CISS_DA is not set
 # CONFIG_BLK_DEV_DAC960 is not set
@@ -603,7 +613,7 @@ CONFIG_SCSI_CONSTANTS=y
 # SCSI Transport Attributes
 #
 CONFIG_SCSI_SPI_ATTRS=y
-# CONFIG_SCSI_FC_ATTRS is not set
+CONFIG_SCSI_FC_ATTRS=y
 # CONFIG_SCSI_ISCSI_ATTRS is not set
 # CONFIG_SCSI_SAS_ATTRS is not set
 
@@ -645,12 +655,7 @@ CONFIG_SCSI_SYM53C8XX_MAX_TAGS=64
 # CONFIG_SCSI_QLOGIC_FC is not set
 # CONFIG_SCSI_QLOGIC_1280 is not set
 CONFIG_SCSI_QLA2XXX=y
-# CONFIG_SCSI_QLA21XX is not set
-# CONFIG_SCSI_QLA22XX is not set
-# CONFIG_SCSI_QLA2300 is not set
-# CONFIG_SCSI_QLA2322 is not set
-# CONFIG_SCSI_QLA6312 is not set
-# CONFIG_SCSI_QLA24XX is not set
+# CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE is not set
 # CONFIG_SCSI_LPFC is not set
 # CONFIG_SCSI_DC395x is not set
 # CONFIG_SCSI_DC390T is not set
@@ -658,7 +663,7 @@ CONFIG_SCSI_QLA2XXX=y
 # CONFIG_SCSI_DEBUG is not set
 CONFIG_SCSI_MESH=y
 CONFIG_SCSI_MESH_SYNC_RATE=5
-CONFIG_SCSI_MESH_RESET_DELAY_MS=1000
+CONFIG_SCSI_MESH_RESET_DELAY_MS=4000
 CONFIG_SCSI_MAC53C94=y
 
 #
@@ -727,7 +732,6 @@ CONFIG_IEEE1394_SBP2=m
 CONFIG_IEEE1394_ETH1394=m
 CONFIG_IEEE1394_DV1394=m
 CONFIG_IEEE1394_RAWIO=m
-# CONFIG_IEEE1394_CMP is not set
 
 #
 # I2O device support
@@ -740,7 +744,7 @@ CONFIG_IEEE1394_RAWIO=m
 CONFIG_ADB=y
 CONFIG_ADB_CUDA=y
 CONFIG_ADB_PMU=y
-CONFIG_PMAC_APM_EMU=y
+CONFIG_PMAC_APM_EMU=m
 CONFIG_PMAC_MEDIABAY=y
 CONFIG_PMAC_BACKLIGHT=y
 CONFIG_INPUT_ADBHID=y
@@ -819,6 +823,7 @@ CONFIG_PCNET32=y
 # CONFIG_R8169 is not set
 # CONFIG_SIS190 is not set
 # CONFIG_SKGE is not set
+# CONFIG_SKY2 is not set
 # CONFIG_SK98LIN is not set
 # CONFIG_VIA_VELOCITY is not set
 # CONFIG_TIGON3 is not set
@@ -978,14 +983,14 @@ CONFIG_HW_CONSOLE=y
 CONFIG_SERIAL_8250=m
 # CONFIG_SERIAL_8250_CS is not set
 CONFIG_SERIAL_8250_NR_UARTS=4
+CONFIG_SERIAL_8250_RUNTIME_UARTS=4
 # CONFIG_SERIAL_8250_EXTENDED is not set
 
 #
 # Non-8250 serial port support
 #
 CONFIG_SERIAL_CORE=m
-# CONFIG_SERIAL_PMACZILOG is not set
-# CONFIG_SERIAL_JSM is not set
+CONFIG_SERIAL_PMACZILOG=m
 CONFIG_UNIX98_PTYS=y
 CONFIG_LEGACY_PTYS=y
 CONFIG_LEGACY_PTY_COUNT=256
@@ -1058,7 +1063,7 @@ CONFIG_I2C_ALGOBIT=y
 # CONFIG_I2C_I801 is not set
 # CONFIG_I2C_I810 is not set
 # CONFIG_I2C_PIIX4 is not set
-CONFIG_I2C_KEYWEST=m
+CONFIG_I2C_POWERMAC=y
 # CONFIG_I2C_MPC is not set
 # CONFIG_I2C_NFORCE2 is not set
 # CONFIG_I2C_PARPORT_LIGHT is not set
@@ -1160,7 +1165,6 @@ CONFIG_FB_ATY128=y
 CONFIG_FB_ATY=y
 CONFIG_FB_ATY_CT=y
 # CONFIG_FB_ATY_GENERIC_LCD is not set
-# CONFIG_FB_ATY_XL_INIT is not set
 CONFIG_FB_ATY_GX=y
 # CONFIG_FB_SAVAGE is not set
 # CONFIG_FB_SIS is not set
@@ -1169,7 +1173,6 @@ CONFIG_FB_ATY_GX=y
 CONFIG_FB_3DFX=y
 # CONFIG_FB_3DFX_ACCEL is not set
 # CONFIG_FB_VOODOO1 is not set
-# CONFIG_FB_CYBLA is not set
 # CONFIG_FB_TRIDENT is not set
 # CONFIG_FB_VIRTUAL is not set
 
@@ -1214,9 +1217,10 @@ CONFIG_SND_OSSEMUL=y
 CONFIG_SND_MIXER_OSS=m
 CONFIG_SND_PCM_OSS=m
 CONFIG_SND_SEQUENCER_OSS=y
+# CONFIG_SND_DYNAMIC_MINORS is not set
+CONFIG_SND_SUPPORT_OLD_API=y
 # CONFIG_SND_VERBOSE_PRINTK is not set
 # CONFIG_SND_DEBUG is not set
-CONFIG_SND_GENERIC_DRIVER=y
 
 #
 # Generic devices
@@ -1230,6 +1234,8 @@ CONFIG_SND_DUMMY=m
 #
 # PCI devices
 #
+# CONFIG_SND_AD1889 is not set
+# CONFIG_SND_ALS4000 is not set
 # CONFIG_SND_ALI5451 is not set
 # CONFIG_SND_ATIIXP is not set
 # CONFIG_SND_ATIIXP_MODEM is not set
@@ -1238,45 +1244,44 @@ CONFIG_SND_DUMMY=m
 # CONFIG_SND_AU8830 is not set
 # CONFIG_SND_AZT3328 is not set
 # CONFIG_SND_BT87X is not set
-# CONFIG_SND_CS46XX is not set
+# CONFIG_SND_CA0106 is not set
+# CONFIG_SND_CMIPCI is not set
 # CONFIG_SND_CS4281 is not set
+# CONFIG_SND_CS46XX is not set
 # CONFIG_SND_EMU10K1 is not set
 # CONFIG_SND_EMU10K1X is not set
-# CONFIG_SND_CA0106 is not set
-# CONFIG_SND_KORG1212 is not set
-# CONFIG_SND_MIXART is not set
-# CONFIG_SND_NM256 is not set
-# CONFIG_SND_RME32 is not set
-# CONFIG_SND_RME96 is not set
-# CONFIG_SND_RME9652 is not set
-# CONFIG_SND_HDSP is not set
-# CONFIG_SND_HDSPM is not set
-# CONFIG_SND_TRIDENT is not set
-# CONFIG_SND_YMFPCI is not set
-# CONFIG_SND_AD1889 is not set
-# CONFIG_SND_ALS4000 is not set
-# CONFIG_SND_CMIPCI is not set
 # CONFIG_SND_ENS1370 is not set
 # CONFIG_SND_ENS1371 is not set
 # CONFIG_SND_ES1938 is not set
 # CONFIG_SND_ES1968 is not set
-# CONFIG_SND_MAESTRO3 is not set
 # CONFIG_SND_FM801 is not set
+# CONFIG_SND_HDA_INTEL is not set
+# CONFIG_SND_HDSP is not set
+# CONFIG_SND_HDSPM is not set
 # CONFIG_SND_ICE1712 is not set
 # CONFIG_SND_ICE1724 is not set
 # CONFIG_SND_INTEL8X0 is not set
 # CONFIG_SND_INTEL8X0M is not set
+# CONFIG_SND_KORG1212 is not set
+# CONFIG_SND_MAESTRO3 is not set
+# CONFIG_SND_MIXART is not set
+# CONFIG_SND_NM256 is not set
+# CONFIG_SND_PCXHR is not set
+# CONFIG_SND_RME32 is not set
+# CONFIG_SND_RME96 is not set
+# CONFIG_SND_RME9652 is not set
 # CONFIG_SND_SONICVIBES is not set
+# CONFIG_SND_TRIDENT is not set
 # CONFIG_SND_VIA82XX is not set
 # CONFIG_SND_VIA82XX_MODEM is not set
 # CONFIG_SND_VX222 is not set
-# CONFIG_SND_HDA_INTEL is not set
+# CONFIG_SND_YMFPCI is not set
 
 #
 # ALSA PowerMac devices
 #
 CONFIG_SND_POWERMAC=m
-# CONFIG_SND_POWERMAC_AUTO_DRC is not set
+CONFIG_SND_POWERMAC_AUTO_DRC=y
 
 #
 # USB devices
@@ -1336,6 +1341,7 @@ CONFIG_USB_PRINTER=m
 # may also be needed; see USB_STORAGE Help for more information
 #
 # CONFIG_USB_STORAGE is not set
+# CONFIG_USB_LIBUSUAL is not set
 
 #
 # USB Input Devices
@@ -1355,6 +1361,7 @@ CONFIG_USB_HIDINPUT=y
 # CONFIG_USB_YEALINK is not set
 # CONFIG_USB_XPAD is not set
 # CONFIG_USB_ATI_REMOTE is not set
+# CONFIG_USB_ATI_REMOTE2 is not set
 # CONFIG_USB_KEYSPAN_REMOTE is not set
 CONFIG_USB_APPLETOUCH=y
 
@@ -1501,6 +1508,7 @@ CONFIG_FS_MBCACHE=y
 # CONFIG_JFS_FS is not set
 # CONFIG_FS_POSIX_ACL is not set
 # CONFIG_XFS_FS is not set
+# CONFIG_OCFS2_FS is not set
 # CONFIG_MINIX_FS is not set
 # CONFIG_ROMFS_FS is not set
 CONFIG_INOTIFY=y
@@ -1540,6 +1548,7 @@ CONFIG_TMPFS=y
 # CONFIG_HUGETLB_PAGE is not set
 CONFIG_RAMFS=y
 CONFIG_RELAYFS_FS=m
+# CONFIG_CONFIGFS_FS is not set
 
 #
 # Miscellaneous filesystems
@@ -1670,12 +1679,13 @@ CONFIG_OPROFILE=y
 # Kernel hacking
 #
 # CONFIG_PRINTK_TIME is not set
-CONFIG_DEBUG_KERNEL=y
 # CONFIG_MAGIC_SYSRQ is not set
+CONFIG_DEBUG_KERNEL=y
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_DETECT_SOFTLOCKUP=y
 # CONFIG_SCHEDSTATS is not set
 # CONFIG_DEBUG_SLAB is not set
+# CONFIG_DEBUG_MUTEXES is not set
 # CONFIG_DEBUG_SPINLOCK is not set
 # CONFIG_DEBUG_SPINLOCK_SLEEP is not set
 # CONFIG_DEBUG_KOBJECT is not set
@@ -1688,6 +1698,11 @@ CONFIG_XMON=y
 CONFIG_XMON_DEFAULT=y
 # CONFIG_BDI_SWITCH is not set
 CONFIG_BOOTX_TEXT=y
+# CONFIG_PPC_EARLY_DEBUG_LPAR is not set
+# CONFIG_PPC_EARLY_DEBUG_G5 is not set
+# CONFIG_PPC_EARLY_DEBUG_RTAS is not set
+# CONFIG_PPC_EARLY_DEBUG_MAPLE is not set
+# CONFIG_PPC_EARLY_DEBUG_ISERIES is not set
 
 #
 # Security options

arch/powerpc/kernel/Makefile

@@ -60,7 +60,8 @@ obj-$(CONFIG_MODULES)		+= $(module-y)
 
 pci64-$(CONFIG_PPC64)		+= pci_64.o pci_dn.o pci_iommu.o \
 				   pci_direct_iommu.o iomap.o
-obj-$(CONFIG_PCI)		+= $(pci64-y)
+pci32-$(CONFIG_PPC32)		:= pci_32.o
+obj-$(CONFIG_PCI)		+= $(pci64-y) $(pci32-y)
 kexec-$(CONFIG_PPC64)		:= machine_kexec_64.o crash.o
 kexec-$(CONFIG_PPC32)		:= machine_kexec_32.o
 obj-$(CONFIG_KEXEC)		+= machine_kexec.o $(kexec-y)

arch/powerpc/kernel/crash.c

@@ -84,7 +84,10 @@ static void crash_save_this_cpu(struct pt_regs *regs, int cpu)
 	 * squirrelled away.  ELF notes happen to provide
 	 * all of that that no need to invent something new.
 	 */
-	buf = &crash_notes[cpu][0];
+	buf = (u32*)per_cpu_ptr(crash_notes, cpu);
+	if (!buf) 
+		return;
+
 	memset(&prstatus, 0, sizeof(prstatus));
 	prstatus.pr_pid = current->pid;
 	elf_core_copy_regs(&prstatus.pr_reg, regs);
@@ -93,76 +96,6 @@ static void crash_save_this_cpu(struct pt_regs *regs, int cpu)
 	final_note(buf);
 }
 
-/* FIXME Merge this with xmon_save_regs ?? */
-static inline void crash_get_current_regs(struct pt_regs *regs)
-{
-	unsigned long tmp1, tmp2;
-
-	__asm__ __volatile__ (
-		"std    0,0(%2)\n"
-		"std    1,8(%2)\n"
-		"std    2,16(%2)\n"
-		"std    3,24(%2)\n"
-		"std    4,32(%2)\n"
-		"std    5,40(%2)\n"
-		"std    6,48(%2)\n"
-		"std    7,56(%2)\n"
-		"std    8,64(%2)\n"
-		"std    9,72(%2)\n"
-		"std    10,80(%2)\n"
-		"std    11,88(%2)\n"
-		"std    12,96(%2)\n"
-		"std    13,104(%2)\n"
-		"std    14,112(%2)\n"
-		"std    15,120(%2)\n"
-		"std    16,128(%2)\n"
-		"std    17,136(%2)\n"
-		"std    18,144(%2)\n"
-		"std    19,152(%2)\n"
-		"std    20,160(%2)\n"
-		"std    21,168(%2)\n"
-		"std    22,176(%2)\n"
-		"std    23,184(%2)\n"
-		"std    24,192(%2)\n"
-		"std    25,200(%2)\n"
-		"std    26,208(%2)\n"
-		"std    27,216(%2)\n"
-		"std    28,224(%2)\n"
-		"std    29,232(%2)\n"
-		"std    30,240(%2)\n"
-		"std    31,248(%2)\n"
-		"mfmsr  %0\n"
-		"std    %0, 264(%2)\n"
-		"mfctr  %0\n"
-		"std    %0, 280(%2)\n"
-		"mflr   %0\n"
-		"std    %0, 288(%2)\n"
-		"bl     1f\n"
-	"1:      mflr   %1\n"
-		"std    %1, 256(%2)\n"
-		"mtlr   %0\n"
-		"mfxer  %0\n"
-		"std    %0, 296(%2)\n"
-		: "=&r" (tmp1), "=&r" (tmp2)
-		: "b" (regs));
-}
-
-/* We may have saved_regs from where the error came from
- * or it is NULL if via a direct panic().
- */
-static void crash_save_self(struct pt_regs *saved_regs)
-{
-	struct pt_regs regs;
-	int cpu;
-
-	cpu = smp_processor_id();
-	if (saved_regs)
-		memcpy(&regs, saved_regs, sizeof(regs));
-	else
-		crash_get_current_regs(&regs);
-	crash_save_this_cpu(&regs, cpu);
-}
-
 #ifdef CONFIG_SMP
 static atomic_t waiting_for_crash_ipi;
 
@@ -260,5 +193,5 @@ void default_machine_crash_shutdown(struct pt_regs *regs)
 	 */
 	crashing_cpu = smp_processor_id();
 	crash_kexec_prepare_cpus();
-	crash_save_self(regs);
+	crash_save_this_cpu(regs, crashing_cpu);
 }

arch/powerpc/kernel/prom_init.c

@@ -605,7 +605,8 @@ static void __init early_cmdline_parse(void)
 	opt = strstr(RELOC(prom_cmd_line), RELOC("crashkernel="));
 	if (opt) {
 		opt += 12;
-		RELOC(prom_crashk_size) = prom_memparse(opt, &opt);
+		RELOC(prom_crashk_size) = 
+			prom_memparse(opt, (const char **)&opt);
 
 		if (ALIGN(RELOC(prom_crashk_size), 0x1000000) !=
 			RELOC(prom_crashk_size)) {

arch/powerpc/platforms/maple/pci.c

@@ -316,7 +316,6 @@ static int __init add_bridge(struct device_node *dev)
 	char* disp_name;
 	int *bus_range;
 	int primary = 1;
-	struct property *of_prop;
 
 	DBG("Adding PCI host bridge %s\n", dev->full_name);
 

arch/powerpc/platforms/maple/setup.c

@@ -71,38 +71,60 @@
 #define DBG(fmt...)
 #endif
 
+static unsigned long maple_find_nvram_base(void)
+{
+	struct device_node *rtcs;
+	unsigned long result = 0;
+
+	/* find NVRAM device */
+	rtcs = of_find_compatible_node(NULL, "nvram", "AMD8111");
+	if (rtcs) {
+		struct resource r;
+		if (of_address_to_resource(rtcs, 0, &r)) {
+			printk(KERN_EMERG "Maple: Unable to translate NVRAM"
+			       " address\n");
+			goto bail;
+		}
+		if (!(r.flags & IORESOURCE_IO)) {
+			printk(KERN_EMERG "Maple: NVRAM address isn't PIO!\n");
+			goto bail;
+		}
+		result = r.start;
+	} else
+		printk(KERN_EMERG "Maple: Unable to find NVRAM\n");
+ bail:
+	of_node_put(rtcs);
+	return result;
+}
+
 static void maple_restart(char *cmd)
 {
 	unsigned int maple_nvram_base;
 	unsigned int maple_nvram_offset;
 	unsigned int maple_nvram_command;
-	struct device_node *rtcs;
+	struct device_node *sp;
 
-	/* find NVRAM device */
-	rtcs = find_compatible_devices("nvram", "AMD8111");
-	if (rtcs && rtcs->addrs) {
-		maple_nvram_base = rtcs->addrs[0].address;
-	} else {
-		printk(KERN_EMERG "Maple: Unable to find NVRAM\n");
-		printk(KERN_EMERG "Maple: Manual Restart Required\n");
-		return;
-	}
+	maple_nvram_base = maple_find_nvram_base();
+	if (maple_nvram_base == 0)
+		goto fail;
 
 	/* find service processor device */
-	rtcs = find_devices("service-processor");
-	if (!rtcs) {
+	sp = of_find_node_by_name(NULL, "service-processor");
+	if (!sp) {
 		printk(KERN_EMERG "Maple: Unable to find Service Processor\n");
-		printk(KERN_EMERG "Maple: Manual Restart Required\n");
-		return;
+		goto fail;
 	}
-	maple_nvram_offset = *(unsigned int*) get_property(rtcs,
+	maple_nvram_offset = *(unsigned int*) get_property(sp,
 			"restart-addr", NULL);
-	maple_nvram_command = *(unsigned int*) get_property(rtcs,
+	maple_nvram_command = *(unsigned int*) get_property(sp,
 			"restart-value", NULL);
+	of_node_put(sp);
 
 	/* send command */
 	outb_p(maple_nvram_command, maple_nvram_base + maple_nvram_offset);
 	for (;;) ;
+ fail:
+	printk(KERN_EMERG "Maple: Manual Restart Required\n");
 }
 
 static void maple_power_off(void)
@@ -110,33 +132,29 @@ static void maple_power_off(void)
 	unsigned int maple_nvram_base;
 	unsigned int maple_nvram_offset;
 	unsigned int maple_nvram_command;
-	struct device_node *rtcs;
+	struct device_node *sp;
 
-	/* find NVRAM device */
-	rtcs = find_compatible_devices("nvram", "AMD8111");
-	if (rtcs && rtcs->addrs) {
-		maple_nvram_base = rtcs->addrs[0].address;
-	} else {
-		printk(KERN_EMERG "Maple: Unable to find NVRAM\n");
-		printk(KERN_EMERG "Maple: Manual Power-Down Required\n");
-		return;
-	}
+	maple_nvram_base = maple_find_nvram_base();
+	if (maple_nvram_base == 0)
+		goto fail;
 
 	/* find service processor device */
-	rtcs = find_devices("service-processor");
-	if (!rtcs) {
+	sp = of_find_node_by_name(NULL, "service-processor");
+	if (!sp) {
 		printk(KERN_EMERG "Maple: Unable to find Service Processor\n");
-		printk(KERN_EMERG "Maple: Manual Power-Down Required\n");
-		return;
+		goto fail;
 	}
-	maple_nvram_offset = *(unsigned int*) get_property(rtcs,
+	maple_nvram_offset = *(unsigned int*) get_property(sp,
 			"power-off-addr", NULL);
-	maple_nvram_command = *(unsigned int*) get_property(rtcs,
+	maple_nvram_command = *(unsigned int*) get_property(sp,
 			"power-off-value", NULL);
+	of_node_put(sp);
 
 	/* send command */
 	outb_p(maple_nvram_command, maple_nvram_base + maple_nvram_offset);
 	for (;;) ;
+ fail:
+	printk(KERN_EMERG "Maple: Manual Power-Down Required\n");
 }
 
 static void maple_halt(void)
@@ -179,9 +197,6 @@ void __init maple_setup_arch(void)
  */
 static void __init maple_init_early(void)
 {
-	unsigned int default_speed;
-	u64 physport;
-
 	DBG(" -> maple_init_early\n");
 
 	/* Initialize hash table, from now on, we can take hash faults

arch/powerpc/platforms/maple/time.c

@@ -168,11 +168,24 @@ unsigned long __init maple_get_boot_time(void)
 	struct rtc_time tm;
 	struct device_node *rtcs;
 
-	rtcs = find_compatible_devices("rtc", "pnpPNP,b00");
-	if (rtcs && rtcs->addrs) {
-		maple_rtc_addr = rtcs->addrs[0].address;
-		printk(KERN_INFO "Maple: Found RTC at 0x%x\n", maple_rtc_addr);
-	} else {
+	rtcs = of_find_compatible_node(NULL, "rtc", "pnpPNP,b00");
+	if (rtcs) {
+		struct resource r;
+		if (of_address_to_resource(rtcs, 0, &r)) {
+			printk(KERN_EMERG "Maple: Unable to translate RTC"
+			       " address\n");
+			goto bail;
+		}
+		if (!(r.flags & IORESOURCE_IO)) {
+			printk(KERN_EMERG "Maple: RTC address isn't PIO!\n");
+			goto bail;
+		}
+		maple_rtc_addr = r.start;
+		printk(KERN_INFO "Maple: Found RTC at IO 0x%x\n",
+		       maple_rtc_addr);
+	}
+ bail:
+	if (maple_rtc_addr == 0) {
 		maple_rtc_addr = RTC_PORT(0); /* legacy address */
 		printk(KERN_INFO "Maple: No device node for RTC, assuming "
 		       "legacy address (0x%x)\n", maple_rtc_addr);

arch/ppc/Kconfig

@@ -58,11 +58,11 @@ config 6xx
 	help
 	  There are four types of PowerPC chips supported.  The more common
 	  types (601, 603, 604, 740, 750, 7400), the Motorola embedded
-	  versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the IBM embedded
-	  versions (403 and 405) and the high end 64 bit Power processors
-	  (POWER 3, POWER4, and IBM 970 also known as G5)
+	  versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the IBM
+	  embedded versions (403 and 405) and the POWER3 processor.
+	  (For support for more recent 64-bit processors, set ARCH=powerpc.)
 	  Unless you are building a kernel for one of the embedded processor
-	  systems, 64 bit IBM RS/6000 or an Apple G5, choose 6xx.
+	  systems or a POWER3-based IBM RS/6000, choose 6xx.
 	  Note that the kernel runs in 32-bit mode even on 64-bit chips.
 	  Also note that because the 52xx, 82xx, & 83xx family has a 603e core,
 	  specific support for that chipset is asked later on.
@@ -77,10 +77,6 @@ config POWER3
 	select PPC_FPU
 	bool "POWER3"
 
-config POWER4
-	select PPC_FPU
-	bool "POWER4 and 970 (G5)"
-
 config 8xx
 	bool "8xx"
 
@@ -123,7 +119,7 @@ config PHYS_64BIT
 
 config ALTIVEC
 	bool "AltiVec Support"
-	depends on 6xx || POWER4
+	depends on 6xx
 	depends on !8260 && !83xx
 	---help---
 	  This option enables kernel support for the Altivec extensions to the
@@ -235,18 +231,9 @@ config KEXEC
 
 source "drivers/cpufreq/Kconfig"
 
-config CPU_FREQ_PMAC
-	bool "Support for Apple PowerBooks"
-	depends on CPU_FREQ && ADB_PMU
-	select CPU_FREQ_TABLE
-	help
-	  This adds support for frequency switching on Apple PowerBooks,
-	  this currently includes some models of iBook & Titanium
-	  PowerBook.
-
 config PPC601_SYNC_FIX
 	bool "Workarounds for PPC601 bugs"
-	depends on 6xx && (PPC_PREP || PPC_PMAC)
+	depends on 6xx && PPC_PREP
 	help
 	  Some versions of the PPC601 (the first PowerPC chip) have bugs which
 	  mean that extra synchronization instructions are required near
@@ -258,26 +245,17 @@ config PPC601_SYNC_FIX
 
 	  If in doubt, say Y here.
 
-config HOTPLUG_CPU
-	bool "Support for enabling/disabling CPUs"
-	depends on SMP && HOTPLUG && EXPERIMENTAL && PPC_PMAC
-	---help---
-	  Say Y here to be able to disable and re-enable individual
-	  CPUs at runtime on SMP machines.
-
-	  Say N if you are unsure.
-
 source arch/ppc/platforms/4xx/Kconfig
 source arch/ppc/platforms/85xx/Kconfig
 
 config PPC64BRIDGE
 	bool
-	depends on POWER3 || POWER4
+	depends on POWER3
 	default y
 
 config PPC_STD_MMU
 	bool
-	depends on 6xx || POWER3 || POWER4
+	depends on 6xx || POWER3
 	default y
 
 config NOT_COHERENT_CACHE
@@ -505,7 +483,7 @@ endchoice
 
 choice
 	prompt "Machine Type"
-	depends on 6xx || POWER3 || POWER4
+	depends on 6xx || POWER3
 	default PPC_MULTIPLATFORM
 	---help---
 	  Linux currently supports several different kinds of PowerPC-based
@@ -516,11 +494,15 @@ choice
 	  Platform) machines (including all of the recent IBM RS/6000 and
 	  pSeries machines), and several embedded PowerPC systems containing
 	  4xx, 6xx, 7xx, 8xx, 74xx, and 82xx processors.  Currently, the
-	  default option is to build a kernel which works on the first three.
+	  default option is to build a kernel which works on PReP and CHRP.
 
-	  Select CHRP/PowerMac/PReP if configuring for an IBM RS/6000 or
-	  pSeries machine, a Power Macintosh (including iMacs, iBooks and
-	  Powerbooks), or a PReP machine.
+	  Note that support for Apple machines is now only available with
+	  ARCH=powerpc, and has been removed from this menu.  If you wish
+	  to build a kernel for an Apple machine, exit this configuration
+	  process and re-run it with ARCH=powerpc.
+
+	  Select CHRP/PReP if configuring for an IBM RS/6000 or
+	  pSeries machine, or a PReP machine.
 
 	  Select Gemini if configuring for a Synergy Microsystems' Gemini
 	  series Single Board Computer.  More information is available at:
@@ -530,7 +512,7 @@ choice
 	  available at: <http://linux-apus.sourceforge.net/>.
 
 config PPC_MULTIPLATFORM
-	bool "CHRP/PowerMac/PReP"
+	bool "CHRP/PReP"
 
 config APUS
 	bool "Amiga-APUS"
@@ -768,25 +750,14 @@ config CPM2
 	  on it (826x, 827x, 8560).
 
 config PPC_CHRP
-	bool
+	bool "Support for CHRP (Common Hardware Reference Platform) machines"
 	depends on PPC_MULTIPLATFORM
 	select PPC_I8259
 	select PPC_INDIRECT_PCI
 	default y
 
-config PPC_PMAC
-	bool
-	depends on PPC_MULTIPLATFORM
-	select PPC_INDIRECT_PCI
-	default y
-
-config PPC_PMAC64
-	bool
-	depends on PPC_PMAC && POWER4
-	default y
-
 config PPC_PREP
-	bool
+	bool "Support for PReP (PowerPC Reference Platform) machines"
 	depends on PPC_MULTIPLATFORM
 	select PPC_I8259
 	select PPC_INDIRECT_PCI
@@ -794,7 +765,7 @@ config PPC_PREP
 
 config PPC_OF
 	bool
-	depends on PPC_PMAC || PPC_CHRP
+	depends on PPC_CHRP
 	default y
 
 config PPC_GEN550
@@ -1166,7 +1137,7 @@ config ISA
 
 config GENERIC_ISA_DMA
 	bool
-	depends on POWER3 || POWER4 || 6xx && !CPM2
+	depends on POWER3 || 6xx && !CPM2
 	default y
 
 config PPC_I8259

arch/ppc/boot/Makefile

@@ -18,7 +18,7 @@ BOOT_TARGETS	= zImage zImage.initrd znetboot znetboot.initrd
 bootdir-y			:= simple
 bootdir-$(CONFIG_PPC_OF)	+= openfirmware
 subdir-y			:= lib common images
-subdir-$(CONFIG_PPC_OF)		+= of1275
+subdir-$(CONFIG_PPC_MULTIPLATFORM)	+= of1275
 
 # for cleaning
 subdir-				+= simple openfirmware

arch/ppc/boot/openfirmware/Makefile

@@ -21,26 +21,16 @@ bootlib	:= $(boot)/lib
 of1275	:= $(boot)/of1275
 images	:= $(boot)/images
 
-OBJCOPY_ARGS	:= -O aixcoff-rs6000 -R .stab -R .stabstr -R .comment
-COFF_LD_ARGS	:= -T $(srctree)/$(boot)/ld.script -e _start -Ttext 0x00500000 \
-			-Bstatic
 CHRP_LD_ARGS	:= -T $(srctree)/$(boot)/ld.script -e _start -Ttext 0x00800000
-NEWWORLD_LD_ARGS:= -T $(srctree)/$(boot)/ld.script -e _start -Ttext 0x01000000
 
 COMMONOBJS	:= start.o misc.o common.o
-COFFOBJS	:= coffcrt0.o $(COMMONOBJS) coffmain.o
 CHRPOBJS	:= crt0.o     $(COMMONOBJS) chrpmain.o
-NEWWORLDOBJS	:= crt0.o     $(COMMONOBJS) newworldmain.o
 
-targets 	:= $(COFFOBJS) $(CHRPOBJS) $(NEWWORLDOBJS) dummy.o
-COFFOBJS	:= $(addprefix $(obj)/, $(COFFOBJS))
+targets 	:= $(CHRPOBJS) dummy.o
 CHRPOBJS	:= $(addprefix $(obj)/, $(CHRPOBJS))
-NEWWORLDOBJS	:= $(addprefix $(obj)/, $(NEWWORLDOBJS))
 
 LIBS		:= lib/lib.a $(bootlib)/lib.a $(of1275)/lib.a $(common)/lib.a
 
-HACKCOFF := $(utils)/hack-coff
-
 ifdef CONFIG_SMP
 END := .smp
 endif
@@ -72,56 +62,11 @@ targets += image.initrd.o
 $(obj)/image.initrd.o: $(obj)/image.o $(images)/ramdisk.image.gz FORCE
 	$(call if_changed,genimage-initrd)
 
-# Create the note section for New-World PowerMacs.
-quiet_cmd_mknote = MKNOTE  $@
-     cmd_mknote  = $(utils)/mknote > $@
-targets		+= note
-$(obj)/note: $(utils)/mknote FORCE
-	$(call if_changed,mknote)
-
 
-$(obj)/coffcrt0.o: EXTRA_AFLAGS := -DXCOFF
-targets += coffcrt0.o crt0.o
-$(obj)/coffcrt0.o $(obj)/crt0.o: $(common)/crt0.S FORCE
+targets += crt0.o
+$(obj)/crt0.o: $(common)/crt0.S FORCE
 	$(call if_changed_dep,as_o_S)
 
-quiet_cmd_gencoffb = COFF    $@
-      cmd_gencoffb = $(LD) -o $@ $(COFF_LD_ARGS) $(COFFOBJS) $< $(LIBS) && \
-                     $(OBJCOPY) $@ $@ -R .comment $(del-ramdisk-sec)
-targets += coffboot
-$(obj)/coffboot: $(obj)/image.o $(COFFOBJS) $(LIBS) $(srctree)/$(boot)/ld.script FORCE
-	$(call if_changed,gencoffb)
-targets += coffboot.initrd
-$(obj)/coffboot.initrd: $(obj)/image.initrd.o $(COFFOBJS) $(LIBS) \
-			$(srctree)/$(boot)/ld.script FORCE
-	$(call if_changed,gencoffb)
-
-
-quiet_cmd_gen-coff = COFF    $@
-      cmd_gen-coff = $(OBJCOPY) $(OBJCOPY_ARGS) $< $@ && \
-			$(HACKCOFF) $@ && \
-			ln -sf $(notdir $@) $(images)/zImage$(initrd).pmac
-
-$(images)/vmlinux.coff: $(obj)/coffboot
-	$(call cmd,gen-coff)
-
-$(images)/vmlinux.initrd.coff: $(obj)/coffboot.initrd
-	$(call cmd,gen-coff)
-
-quiet_cmd_gen-elf-pmac = ELF     $@
-      cmd_gen-elf-pmac = $(LD) $(NEWWORLD_LD_ARGS) -o $@ \
-				$(NEWWORLDOBJS) $(LIBS) $< && \
-			$(OBJCOPY) $@ $@ --add-section=.note=$(obj)/note \
-					 -R .comment $(del-ramdisk-sec)
-
-$(images)/vmlinux.elf-pmac: $(obj)/image.o $(NEWWORLDOBJS) $(LIBS) \
-			$(obj)/note $(srctree)/$(boot)/ld.script
-	$(call cmd,gen-elf-pmac)
-$(images)/vmlinux.initrd.elf-pmac: $(obj)/image.initrd.o $(NEWWORLDOBJS) \
-				   $(LIBS) $(obj)/note \
-				   $(srctree)/$(boot)/ld.script
-	$(call cmd,gen-elf-pmac)
-
 quiet_cmd_gen-chrp = CHRP    $@
       cmd_gen-chrp = $(LD) $(CHRP_LD_ARGS) -o $@ $(CHRPOBJS) $< $(LIBS) && \
 			$(OBJCOPY) $@ $@ -R .comment $(del-ramdisk-sec)
@@ -139,46 +84,23 @@ $(images)/zImage.chrp-rs6k $(images)/zImage.initrd.chrp-rs6k: \
 	%-rs6k: %
 	$(call cmd,addnote)
 
-quiet_cmd_gen-miboot = GEN     $@
-      cmd_gen-miboot = $(OBJCOPY) $(OBJCOPY_ARGS) \
-		       --add-section=$1=$(word 2, $^) $< $@
-$(images)/miboot.image: $(obj)/dummy.o $(images)/vmlinux.gz
-	$(call cmd,gen-miboot,image)
-
-$(images)/miboot.initrd.image: $(images)/miboot.image $(images)/ramdisk.image.gz
-	$(call cmd,gen-miboot,initrd)
-
 # The targets used on the make command-line
 
 .PHONY: zImage zImage.initrd
-zImage:		 $(images)/vmlinux.coff 	\
-		 $(images)/vmlinux.elf-pmac	\
-		 $(images)/zImage.chrp		\
-		 $(images)/zImage.chrp-rs6k	\
-		 $(images)/miboot.image
+zImage:		 $(images)/zImage.chrp		\
+		 $(images)/zImage.chrp-rs6k
 	@echo '  kernel: $@ is ready ($<)'
-zImage.initrd:	 $(images)/vmlinux.initrd.coff 		\
-		 $(images)/vmlinux.initrd.elf-pmac	\
-		 $(images)/zImage.initrd.chrp		\
-		 $(images)/zImage.initrd.chrp-rs6k	\
-		 $(images)/miboot.initrd.image
+zImage.initrd:	 $(images)/zImage.initrd.chrp		\
+		 $(images)/zImage.initrd.chrp-rs6k
 	@echo '  kernel: $@ is ready ($<)'
 
 TFTPIMAGE	:= /tftpboot/zImage
 
 .PHONY: znetboot znetboot.initrd
-znetboot:	$(images)/vmlinux.coff		\
-		$(images)/vmlinux.elf-pmac	\
-		$(images)/zImage.chrp
-	cp $(images)/vmlinux.coff     $(TFTPIMAGE).pmac$(END)
-	cp $(images)/vmlinux.elf-pmac $(TFTPIMAGE).pmac$(END).elf
+znetboot:	$(images)/zImage.chrp
 	cp $(images)/zImage.chrp      $(TFTPIMAGE).chrp$(END)
 	@echo '  kernel: $@ is ready ($<)'
-znetboot.initrd:$(images)/vmlinux.initrd.coff		\
-		$(images)/vmlinux.initrd.elf-pmac	\
-		$(images)/zImage.initrd.chrp
-	cp $(images)/vmlinux.initrd.coff     $(TFTPIMAGE).pmac$(END)
-	cp $(images)/vmlinux.initrd.elf-pmac $(TFTPIMAGE).pmac$(END).elf
+znetboot.initrd:$(images)/zImage.initrd.chrp
 	cp $(images)/zImage.initrd.chrp      $(TFTPIMAGE).chrp$(END)
 	@echo '  kernel: $@ is ready ($<)'
 

arch/ppc/boot/openfirmware/coffmain.c

-/*
- * Copyright (C) Paul Mackerras 1997.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include <linux/string.h>
-#include <asm/processor.h>
-#include <asm/page.h>
-
-#include "nonstdio.h"
-#include "of1275.h"
-
-/* Passed from the linker */
-extern char __image_begin, __image_end;
-extern char __ramdisk_begin[], __ramdisk_end;
-extern char _start, _end;
-
-extern char image_data[], initrd_data[];
-extern int initrd_len, image_len;
-extern unsigned int heap_max;
-extern void flush_cache(void *start, unsigned int len);
-extern void gunzip(void *, int, unsigned char *, int *);
-extern void make_bi_recs(unsigned long addr, char *name, unsigned int mach,
-		unsigned int progend);
-extern void setup_bats(unsigned long start);
-
-char *avail_ram;
-char *begin_avail, *end_avail;
-char *avail_high;
-
-#define SCRATCH_SIZE	(128 << 10)
-
-static char heap[SCRATCH_SIZE];
-
-static unsigned long ram_start = 0;
-static unsigned long ram_end = 0x1000000;
-
-static unsigned long prog_start = 0x800000;
-static unsigned long prog_size = 0x700000;
-
-typedef void (*kernel_start_t)(int, int, void *);
-
-void boot(int a1, int a2, void *prom)
-{
-    unsigned sa, len;
-    void *dst;
-    unsigned char *im;
-    unsigned initrd_start, initrd_size;
-
-    printf("coffboot starting: loaded at 0x%p\n", &_start);
-    setup_bats(ram_start);
-
-    initrd_size = (char *)(&__ramdisk_end) - (char *)(&__ramdisk_begin);
-    if (initrd_size) {
-	initrd_start = (ram_end - initrd_size) & ~0xFFF;
-	a1 = initrd_start;
-	a2 = initrd_size;
-	claim(initrd_start, ram_end - initrd_start, 0);
-	printf("initial ramdisk moving 0x%x <- 0x%p (%x bytes)\n\r",
-	       initrd_start, (char *)(&__ramdisk_begin), initrd_size);
-	memcpy((char *)initrd_start, (char *)(&__ramdisk_begin), initrd_size);
-	prog_size = initrd_start - prog_start;
-    } else
-	a2 = 0xdeadbeef;
-
-    im = (char *)(&__image_begin);
-    len = (char *)(&__image_end) - (char *)(&__image_begin);
-    /* claim 4MB starting at PROG_START */
-    claim(prog_start, prog_size, 0);
-    map(prog_start, prog_start, prog_size);
-    dst = (void *) prog_start;
-    if (im[0] == 0x1f && im[1] == 0x8b) {
-	/* set up scratch space */
-	begin_avail = avail_high = avail_ram = heap;
-	end_avail = heap + sizeof(heap);
-	printf("heap at 0x%p\n", avail_ram);
-	printf("gunzipping (0x%p <- 0x%p:0x%p)...", dst, im, im+len);
-	gunzip(dst, prog_size, im, &len);
-	printf("done %u bytes\n", len);
-	printf("%u bytes of heap consumed, max in use %u\n",
-	       avail_high - begin_avail, heap_max);
-    } else {
-	memmove(dst, im, len);
-    }
-
-    flush_cache(dst, len);
-    make_bi_recs(((unsigned long) dst + len), "coffboot", _MACH_Pmac,
-		    (prog_start + prog_size));
-
-    sa = (unsigned long)prog_start;
-    printf("start address = 0x%x\n", sa);
-
-    (*(kernel_start_t)sa)(a1, a2, prom);
-
-    printf("returned?\n");
-
-    pause();
-}

arch/ppc/boot/openfirmware/newworldmain.c

-/*
- * Copyright (C) Paul Mackerras 1997.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include <linux/string.h>
-#include "nonstdio.h"
-#include "of1275.h"
-#include <asm/processor.h>
-#include <asm/page.h>
-
-/* Passed from the linker */
-extern char __image_begin, __image_end;
-extern char __ramdisk_begin[], __ramdisk_end;
-extern char _start, _end;
-
-extern unsigned int heap_max;
-extern void flush_cache(void *start, unsigned int len);
-extern void gunzip(void *, int, unsigned char *, int *);
-extern void make_bi_recs(unsigned long addr, char *name, unsigned int mach,
-		unsigned int progend);
-
-char *avail_ram;
-char *begin_avail, *end_avail;
-char *avail_high;
-
-
-#define RAM_END		(16 << 20)
-
-#define PROG_START	0x00010000
-#define PROG_SIZE	0x007f0000
-
-#define SCRATCH_SIZE	(128 << 10)
-
-typedef void (*kernel_start_t)(int, int, void *);
-
-void boot(int a1, int a2, void *prom)
-{
-    unsigned sa, len;
-    void *dst;
-    unsigned char *im;
-    unsigned initrd_start, initrd_size;
-
-    printf("chrpboot starting: loaded at 0x%p\n", &_start);
-
-    initrd_size = (char *)(&__ramdisk_end) - (char *)(&__ramdisk_begin);
-    if (initrd_size) {
-	initrd_start = (RAM_END - initrd_size) & ~0xFFF;
-	a1 = initrd_start;
-	a2 = initrd_size;
-	claim(initrd_start, RAM_END - initrd_start, 0);
-	printf("initial ramdisk moving 0x%x <- 0x%p (%x bytes)\n\r",
-	       initrd_start, (char *)(&__ramdisk_begin), initrd_size);
-	memcpy((char *)initrd_start, (char *)(&__ramdisk_begin), initrd_size);
-    } else
-	a2 = 0xdeadbeef;
-
-    im = (char *)(&__image_begin);
-    len = (char *)(&__image_end) - (char *)(&__image_begin);
-    /* claim 3MB starting at PROG_START */
-    claim(PROG_START, PROG_SIZE, 0);
-    dst = (void *) PROG_START;
-    if (im[0] == 0x1f && im[1] == 0x8b) {
-	/* claim some memory for scratch space */
-	avail_ram = (char *) claim(0, SCRATCH_SIZE, 0x10);
-	begin_avail = avail_high = avail_ram;
-	end_avail = avail_ram + SCRATCH_SIZE;
-	printf("heap at 0x%p\n", avail_ram);
-	printf("gunzipping (0x%p <- 0x%p:0x%p)...", dst, im, im+len);
-	gunzip(dst, PROG_SIZE, im, &len);
-	printf("done %u bytes\n", len);
-	printf("%u bytes of heap consumed, max in use %u\n",
-	       avail_high - begin_avail, heap_max);
-	release(begin_avail, SCRATCH_SIZE);
-    } else {
-	memmove(dst, im, len);
-    }
-
-    flush_cache(dst, len);
-    make_bi_recs(((unsigned long) dst + len), "chrpboot", _MACH_Pmac,
-		    (PROG_START + PROG_SIZE));
-
-    sa = (unsigned long)PROG_START;
-    printf("start address = 0x%x\n", sa);
-
-    (*(kernel_start_t)sa)(a1, a2, prom);
-
-    printf("returned?\n");
-
-    pause();
-}

arch/ppc/kernel/Makefile

@@ -9,7 +9,6 @@ extra-$(CONFIG_44x)		:= head_44x.o
 extra-$(CONFIG_FSL_BOOKE)	:= head_fsl_booke.o
 extra-$(CONFIG_8xx)		:= head_8xx.o
 extra-$(CONFIG_6xx)		+= idle_6xx.o
-extra-$(CONFIG_POWER4)		+= idle_power4.o
 extra-y				+= vmlinux.lds
 
 obj-y				:= entry.o traps.o idle.o time.o misc.o \
@@ -17,7 +16,6 @@ obj-y				:= entry.o traps.o idle.o time.o misc.o \
 					ppc_htab.o
 obj-$(CONFIG_6xx)		+= l2cr.o cpu_setup_6xx.o
 obj-$(CONFIG_SOFTWARE_SUSPEND)	+= swsusp.o
-obj-$(CONFIG_POWER4)		+= cpu_setup_power4.o
 obj-$(CONFIG_MODULES)		+= module.o ppc_ksyms.o
 obj-$(CONFIG_NOT_COHERENT_CACHE)	+= dma-mapping.o
 obj-$(CONFIG_PCI)		+= pci.o
@@ -42,7 +40,6 @@ obj-$(CONFIG_6xx)		+= l2cr.o cpu_setup_6xx.o
 obj-$(CONFIG_SOFTWARE_SUSPEND)	+= swsusp.o
 obj-$(CONFIG_MODULES)		+= module.o
 obj-$(CONFIG_NOT_COHERENT_CACHE)	+= dma-mapping.o
-obj-$(CONFIG_PCI)		+= pci.o
 obj-$(CONFIG_KGDB)		+= ppc-stub.o
 obj-$(CONFIG_TAU)		+= temp.o
 ifndef CONFIG_E200

arch/ppc/kernel/misc.S

@@ -204,78 +204,6 @@ _GLOBAL(call_setup_cpu)
 	mtctr	r5
 	bctr
 
-#if defined(CONFIG_CPU_FREQ_PMAC) && defined(CONFIG_6xx)
-
-/* This gets called by via-pmu.c to switch the PLL selection
- * on 750fx CPU. This function should really be moved to some
- * other place (as most of the cpufreq code in via-pmu
- */
-_GLOBAL(low_choose_750fx_pll)
-	/* Clear MSR:EE */
-	mfmsr	r7
-	rlwinm	r0,r7,0,17,15
-	mtmsr	r0
-
-	/* If switching to PLL1, disable HID0:BTIC */
-	cmplwi	cr0,r3,0
-	beq	1f
-	mfspr	r5,SPRN_HID0
-	rlwinm	r5,r5,0,27,25
-	sync
-	mtspr	SPRN_HID0,r5
-	isync
-	sync
-
-1:
-	/* Calc new HID1 value */
-	mfspr	r4,SPRN_HID1	/* Build a HID1:PS bit from parameter */
-	rlwinm	r5,r3,16,15,15	/* Clear out HID1:PS from value read */
-	rlwinm	r4,r4,0,16,14	/* Could have I used rlwimi here ? */
-	or	r4,r4,r5
-	mtspr	SPRN_HID1,r4
-
-	/* Store new HID1 image */
-	rlwinm	r6,r1,0,0,18
-	lwz	r6,TI_CPU(r6)
-	slwi	r6,r6,2
-	addis	r6,r6,nap_save_hid1@ha
-	stw	r4,nap_save_hid1@l(r6)
-
-	/* If switching to PLL0, enable HID0:BTIC */
-	cmplwi	cr0,r3,0
-	bne	1f
-	mfspr	r5,SPRN_HID0
-	ori	r5,r5,HID0_BTIC
-	sync
-	mtspr	SPRN_HID0,r5
-	isync
-	sync
-
-1:
-	/* Return */
-	mtmsr	r7
-	blr
-
-_GLOBAL(low_choose_7447a_dfs)
-	/* Clear MSR:EE */
-	mfmsr	r7
-	rlwinm	r0,r7,0,17,15
-	mtmsr	r0
-	
-	/* Calc new HID1 value */
-	mfspr	r4,SPRN_HID1
-	insrwi	r4,r3,1,9	/* insert parameter into bit 9 */
-	sync
-	mtspr	SPRN_HID1,r4
-	sync
-	isync
-
-	/* Return */
-	mtmsr	r7
-	blr
-
-#endif /* CONFIG_CPU_FREQ_PMAC && CONFIG_6xx */
-
 /*
  * complement mask on the msr then "or" some values on.
  *     _nmask_and_or_msr(nmask, value_to_or)

arch/ppc/kernel/pci.c

 /*
- * Common pmac/prep/chrp pci routines. -- Cort
+ * Common prep/chrp pci routines. -- Cort
  */
 
 #include <linux/config.h>
@@ -50,8 +50,7 @@ static void fixup_cpc710_pci64(struct pci_dev* dev);
 static u8* pci_to_OF_bus_map;
 #endif
 
-/* By default, we don't re-assign bus numbers. We do this only on
- * some pmacs
+/* By default, we don't re-assign bus numbers.
  */
 int pci_assign_all_buses;
 
@@ -780,17 +779,6 @@ pci_busdev_to_OF_node(struct pci_bus *bus, int devfn)
 		return NULL;
 
 	/* Fixup bus number according to what OF think it is. */
-#ifdef CONFIG_PPC_PMAC
-	/* The G5 need a special case here. Basically, we don't remap all
-	 * busses on it so we don't create the pci-OF-map. However, we do
-	 * remap the AGP bus and so have to deal with it. A future better
-	 * fix has to be done by making the remapping per-host and always
-	 * filling the pci_to_OF map. --BenH
-	 */
-	if (_machine == _MACH_Pmac && busnr >= 0xf0)
-		busnr -= 0xf0;
-	else
-#endif
 	if (pci_to_OF_bus_map)
 		busnr = pci_to_OF_bus_map[busnr];
 	if (busnr == 0xff)
@@ -1040,216 +1028,6 @@ void pcibios_add_platform_entries(struct pci_dev *pdev)
 }
 
 
-#ifdef CONFIG_PPC_PMAC
-/*
- * This set of routines checks for PCI<->PCI bridges that have closed
- * IO resources and have child devices. It tries to re-open an IO
- * window on them.
- *
- * This is a _temporary_ fix to workaround a problem with Apple's OF
- * closing IO windows on P2P bridges when the OF drivers of cards
- * below this bridge don't claim any IO range (typically ATI or
- * Adaptec).
- *
- * A more complete fix would be to use drivers/pci/setup-bus.c, which
- * involves a working pcibios_fixup_pbus_ranges(), some more care about
- * ordering when creating the host bus resources, and maybe a few more
- * minor tweaks
- */
-
-/* Initialize bridges with base/limit values we have collected */
-static void __init
-do_update_p2p_io_resource(struct pci_bus *bus, int enable_vga)
-{
-	struct pci_dev *bridge = bus->self;
-	struct pci_controller* hose = (struct pci_controller *)bridge->sysdata;
-	u32 l;
-	u16 w;
-	struct resource res;
-
-	if (bus->resource[0] == NULL)
-		return;
- 	res = *(bus->resource[0]);
-
-	DBG("Remapping Bus %d, bridge: %s\n", bus->number, pci_name(bridge));
-	res.start -= ((unsigned long) hose->io_base_virt - isa_io_base);
-	res.end -= ((unsigned long) hose->io_base_virt - isa_io_base);
-	DBG("  IO window: %08lx-%08lx\n", res.start, res.end);
-
-	/* Set up the top and bottom of the PCI I/O segment for this bus. */
-	pci_read_config_dword(bridge, PCI_IO_BASE, &l);
-	l &= 0xffff000f;
-	l |= (res.start >> 8) & 0x00f0;
-	l |= res.end & 0xf000;
-	pci_write_config_dword(bridge, PCI_IO_BASE, l);
-
-	if ((l & PCI_IO_RANGE_TYPE_MASK) == PCI_IO_RANGE_TYPE_32) {
-		l = (res.start >> 16) | (res.end & 0xffff0000);
-		pci_write_config_dword(bridge, PCI_IO_BASE_UPPER16, l);
-	}
-
-	pci_read_config_word(bridge, PCI_COMMAND, &w);
-	w |= PCI_COMMAND_IO;
-	pci_write_config_word(bridge, PCI_COMMAND, w);
-
-#if 0 /* Enabling this causes XFree 4.2.0 to hang during PCI probe */
-	if (enable_vga) {
-		pci_read_config_word(bridge, PCI_BRIDGE_CONTROL, &w);
-		w |= PCI_BRIDGE_CTL_VGA;
-		pci_write_config_word(bridge, PCI_BRIDGE_CONTROL, w);
-	}
-#endif
-}
-
-/* This function is pretty basic and actually quite broken for the
- * general case, it's enough for us right now though. It's supposed
- * to tell us if we need to open an IO range at all or not and what
- * size.
- */
-static int __init
-check_for_io_childs(struct pci_bus *bus, struct resource* res, int *found_vga)
-{
-	struct pci_dev *dev;
-	int	i;
-	int	rc = 0;
-
-#define push_end(res, size) do { unsigned long __sz = (size) ; \
-	res->end = ((res->end + __sz) / (__sz + 1)) * (__sz + 1) + __sz; \
-    } while (0)
-
-	list_for_each_entry(dev, &bus->devices, bus_list) {
-		u16 class = dev->class >> 8;
-
-		if (class == PCI_CLASS_DISPLAY_VGA ||
-		    class == PCI_CLASS_NOT_DEFINED_VGA)
-			*found_vga = 1;
-		if (class >> 8 == PCI_BASE_CLASS_BRIDGE && dev->subordinate)
-			rc |= check_for_io_childs(dev->subordinate, res, found_vga);
-		if (class == PCI_CLASS_BRIDGE_CARDBUS)
-			push_end(res, 0xfff);
-
-		for (i=0; i<PCI_NUM_RESOURCES; i++) {
-			struct resource *r;
-			unsigned long r_size;
-
-			if (dev->class >> 8 == PCI_CLASS_BRIDGE_PCI
-			    && i >= PCI_BRIDGE_RESOURCES)
-				continue;
-			r = &dev->resource[i];
-			r_size = r->end - r->start;
-			if (r_size < 0xfff)
-				r_size = 0xfff;
-			if (r->flags & IORESOURCE_IO && (r_size) != 0) {
-				rc = 1;
-				push_end(res, r_size);
-			}
-		}
-	}
-
-	return rc;
-}
-
-/* Here we scan all P2P bridges of a given level that have a closed
- * IO window. Note that the test for the presence of a VGA card should
- * be improved to take into account already configured P2P bridges,
- * currently, we don't see them and might end up configuring 2 bridges
- * with VGA pass through enabled
- */
-static void __init
-do_fixup_p2p_level(struct pci_bus *bus)
-{
-	struct pci_bus *b;
-	int i, parent_io;
-	int has_vga = 0;
-
-	for (parent_io=0; parent_io<4; parent_io++)
-		if (bus->resource[parent_io]
-		    && bus->resource[parent_io]->flags & IORESOURCE_IO)
-			break;
-	if (parent_io >= 4)
-		return;
-
-	list_for_each_entry(b, &bus->children, node) {
-		struct pci_dev *d = b->self;
-		struct pci_controller* hose = (struct pci_controller *)d->sysdata;
-		struct resource *res = b->resource[0];
-		struct resource tmp_res;
-		unsigned long max;
-		int found_vga = 0;
-
-		memset(&tmp_res, 0, sizeof(tmp_res));
-		tmp_res.start = bus->resource[parent_io]->start;
-
-		/* We don't let low addresses go through that closed P2P bridge, well,
-		 * that may not be necessary but I feel safer that way
-		 */
-		if (tmp_res.start == 0)
-			tmp_res.start = 0x1000;
-	
-		if (!list_empty(&b->devices) && res && res->flags == 0 &&
-		    res != bus->resource[parent_io] &&
-		    (d->class >> 8) == PCI_CLASS_BRIDGE_PCI &&
-		    check_for_io_childs(b, &tmp_res, &found_vga)) {
-			u8 io_base_lo;
-
-			printk(KERN_INFO "Fixing up IO bus %s\n", b->name);
-
-			if (found_vga) {
-				if (has_vga) {
-					printk(KERN_WARNING "Skipping VGA, already active"
-					    " on bus segment\n");
-					found_vga = 0;
-				} else
-					has_vga = 1;
-			}
-			pci_read_config_byte(d, PCI_IO_BASE, &io_base_lo);
-
-			if ((io_base_lo & PCI_IO_RANGE_TYPE_MASK) == PCI_IO_RANGE_TYPE_32)
-				max = ((unsigned long) hose->io_base_virt
-					- isa_io_base) + 0xffffffff;
-			else
-				max = ((unsigned long) hose->io_base_virt
-					- isa_io_base) + 0xffff;
-
-			*res = tmp_res;
-			res->flags = IORESOURCE_IO;
-			res->name = b->name;
-		
-			/* Find a resource in the parent where we can allocate */
-			for (i = 0 ; i < 4; i++) {
-				struct resource *r = bus->resource[i];
-				if (!r)
-					continue;
-				if ((r->flags & IORESOURCE_IO) == 0)
-					continue;
-				DBG("Trying to allocate from %08lx, size %08lx from parent"
-				    " res %d: %08lx -> %08lx\n",
-					res->start, res->end, i, r->start, r->end);
-			
-				if (allocate_resource(r, res, res->end + 1, res->start, max,
-				    res->end + 1, NULL, NULL) < 0) {
-					DBG("Failed !\n");
-					continue;
-				}
-				do_update_p2p_io_resource(b, found_vga);
-				break;
-			}
-		}
-		do_fixup_p2p_level(b);
-	}
-}
-
-static void
-pcibios_fixup_p2p_bridges(void)
-{
-	struct pci_bus *b;
-
-	list_for_each_entry(b, &pci_root_buses, node)
-		do_fixup_p2p_level(b);
-}
-
-#endif /* CONFIG_PPC_PMAC */
-
 static int __init
 pcibios_init(void)
 {
@@ -1290,9 +1068,6 @@ pcibios_init(void)
 	pcibios_allocate_bus_resources(&pci_root_buses);
 	pcibios_allocate_resources(0);
 	pcibios_allocate_resources(1);
-#ifdef CONFIG_PPC_PMAC
-	pcibios_fixup_p2p_bridges();
-#endif /* CONFIG_PPC_PMAC */
 	pcibios_assign_resources();
 
 	/* Call machine dependent post-init code */
@@ -1722,17 +1497,6 @@ long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn)
 	struct pci_controller* hose;
 	long result = -EOPNOTSUPP;
 
-	/* Argh ! Please forgive me for that hack, but that's the
-	 * simplest way to get existing XFree to not lockup on some
-	 * G5 machines... So when something asks for bus 0 io base
-	 * (bus 0 is HT root), we return the AGP one instead.
-	 */
-#ifdef CONFIG_PPC_PMAC
-	if (_machine == _MACH_Pmac && machine_is_compatible("MacRISC4"))
-		if (bus == 0)
-			bus = 0xf0;
-#endif /* CONFIG_PPC_PMAC */
-
 	hose = pci_bus_to_hose(bus);
 	if (!hose)
 		return -ENODEV;

arch/ppc/kernel/ppc_ksyms.c

@@ -34,7 +34,6 @@
 #include <asm/system.h>
 #include <asm/pci-bridge.h>
 #include <asm/irq.h>
-#include <asm/pmac_feature.h>
 #include <asm/dma.h>
 #include <asm/machdep.h>
 #include <asm/hw_irq.h>
@@ -58,7 +57,6 @@ extern void machine_check_exception(struct pt_regs *regs);
 extern void alignment_exception(struct pt_regs *regs);
 extern void program_check_exception(struct pt_regs *regs);
 extern void single_step_exception(struct pt_regs *regs);
-extern int pmac_newworld;
 extern int sys_sigreturn(struct pt_regs *regs);
 
 long long __ashrdi3(long long, int);
@@ -213,10 +211,6 @@ EXPORT_SYMBOL(adb_try_handler_change);
 EXPORT_SYMBOL(cuda_request);
 EXPORT_SYMBOL(cuda_poll);
 #endif /* CONFIG_ADB_CUDA */
-#ifdef CONFIG_PPC_PMAC
-EXPORT_SYMBOL(sys_ctrler);
-EXPORT_SYMBOL(pmac_newworld);
-#endif
 #ifdef CONFIG_PPC_OF
 EXPORT_SYMBOL(find_devices);
 EXPORT_SYMBOL(find_type_devices);
@@ -241,9 +235,6 @@ EXPORT_SYMBOL(of_node_put);
 #if defined(CONFIG_BOOTX_TEXT)
 EXPORT_SYMBOL(btext_update_display);
 #endif
-#if defined(CONFIG_SCSI) && defined(CONFIG_PPC_PMAC)
-EXPORT_SYMBOL(note_scsi_host);
-#endif
 #ifdef CONFIG_VT
 EXPORT_SYMBOL(kd_mksound);
 #endif

arch/ppc/kernel/setup.c

 /*
- * Common prep/pmac/chrp boot and setup code.
+ * Common prep/chrp boot and setup code.
  */
 
 #include <linux/config.h>
@@ -35,7 +35,6 @@
 #include <asm/machdep.h>
 #include <asm/uaccess.h>
 #include <asm/system.h>
-#include <asm/pmac_feature.h>
 #include <asm/sections.h>
 #include <asm/nvram.h>
 #include <asm/xmon.h>
@@ -55,7 +54,6 @@
 
 extern void platform_init(unsigned long r3, unsigned long r4,
 		unsigned long r5, unsigned long r6, unsigned long r7);
-extern void bootx_init(unsigned long r4, unsigned long phys);
 extern void identify_cpu(unsigned long offset, unsigned long cpu);
 extern void do_cpu_ftr_fixups(unsigned long offset);
 extern void reloc_got2(unsigned long offset);
@@ -80,8 +78,6 @@ EXPORT_SYMBOL(_machine);
 
 extern void prep_init(unsigned long r3, unsigned long r4,
 		unsigned long r5, unsigned long r6, unsigned long r7);
-extern void pmac_init(unsigned long r3, unsigned long r4,
-		unsigned long r5, unsigned long r6, unsigned long r7);
 extern void chrp_init(unsigned long r3, unsigned long r4,
 		unsigned long r5, unsigned long r6, unsigned long r7);
 
@@ -324,20 +320,15 @@ early_init(int r3, int r4, int r5)
 	identify_cpu(offset, 0);
 	do_cpu_ftr_fixups(offset);
 
-#if defined(CONFIG_PPC_MULTIPLATFORM)
+#if defined(CONFIG_PPC_OF)
 	reloc_got2(offset);
 
-	/* If we came here from BootX, clear the screen,
-	 * set up some pointers and return. */
-	if ((r3 == 0x426f6f58) && (r5 == 0))
-		bootx_init(r4, phys);
-
 	/*
 	 * don't do anything on prep
 	 * for now, don't use bootinfo because it breaks yaboot 0.5
 	 * and assume that if we didn't find a magic number, we have OF
 	 */
-	else if (*(unsigned long *)(0) != 0xdeadc0de)
+	if (*(unsigned long *)(0) != 0xdeadc0de)
 		phys = prom_init(r3, r4, (prom_entry)r5);
 
 	reloc_got2(-offset);
@@ -424,6 +415,7 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
 	}
 #endif
 
+#ifdef CONFIG_PPC_OF
 	have_of = 1;
 
 	/* prom_init has already been called from __start */
@@ -495,19 +487,17 @@ platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
 #endif /* CONFIG_ADB */
 
 	switch (_machine) {
-#ifdef CONFIG_PPC_PMAC
-	case _MACH_Pmac:
-		pmac_init(r3, r4, r5, r6, r7);
-		break;
-#endif
 #ifdef CONFIG_PPC_CHRP
 	case _MACH_chrp:
 		chrp_init(r3, r4, r5, r6, r7);
 		break;
 #endif
 	}
+#endif /* CONFIG_PPC_OF */
 }
+#endif /* CONFIG_PPC_MULTIPLATFORM */
 
+#ifdef CONFIG_PPC_OF
 #ifdef CONFIG_SERIAL_CORE_CONSOLE
 extern char *of_stdout_device;
 
@@ -564,7 +554,7 @@ static int __init set_preferred_console(void)
 }
 console_initcall(set_preferred_console);
 #endif /* CONFIG_SERIAL_CORE_CONSOLE */
-#endif /* CONFIG_PPC_MULTIPLATFORM */
+#endif /* CONFIG_PPC_OF */
 
 struct bi_record *find_bootinfo(void)
 {
@@ -747,14 +737,6 @@ void __init setup_arch(char **cmdline_p)
 	if (ppc_md.init_early)
 		ppc_md.init_early();
 
-#ifdef CONFIG_PPC_MULTIPLATFORM
-	/* This could be called "early setup arch", it must be done
-	 * now because xmon need it
-	 */
-	if (_machine == _MACH_Pmac)
-		pmac_feature_init();	/* New cool way */
-#endif
-
 #ifdef CONFIG_XMON
 	xmon_init(1);
 	if (strstr(cmd_line, "xmon"))

arch/ppc/kernel/traps.c

@@ -38,9 +38,6 @@
 #include <asm/io.h>
 #include <asm/reg.h>
 #include <asm/xmon.h>
-#ifdef CONFIG_PMAC_BACKLIGHT
-#include <asm/backlight.h>
-#endif
 #include <asm/pmc.h>
 
 #ifdef CONFIG_XMON
@@ -85,12 +82,6 @@ int die(const char * str, struct pt_regs * fp, long err)
 	int nl = 0;
 	console_verbose();
 	spin_lock_irq(&die_lock);
-#ifdef CONFIG_PMAC_BACKLIGHT
-	if (_machine == _MACH_Pmac) {
-		set_backlight_enable(1);
-		set_backlight_level(BACKLIGHT_MAX);
-	}
-#endif
 	printk("Oops: %s, sig: %ld [#%d]\n", str, err, ++die_counter);
 #ifdef CONFIG_PREEMPT
 	printk("PREEMPT ");
@@ -159,7 +150,7 @@ void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr)
  */
 static inline int check_io_access(struct pt_regs *regs)
 {
-#if defined CONFIG_PPC_PMAC || defined CONFIG_8xx
+#if defined CONFIG_8xx
 	unsigned long msr = regs->msr;
 	const struct exception_table_entry *entry;
 	unsigned int *nip = (unsigned int *)regs->nip;
@@ -196,7 +187,7 @@ static inline int check_io_access(struct pt_regs *regs)
 			return 1;
 		}
 	}
-#endif /* CONFIG_PPC_PMAC */
+#endif /* CONFIG_8xx */
 	return 0;
 }
 

arch/ppc/mm/init.c

@@ -67,10 +67,6 @@ unsigned long ppc_memoffset = PAGE_OFFSET;
 int mem_init_done;
 int init_bootmem_done;
 int boot_mapsize;
-#ifdef CONFIG_PPC_PMAC
-unsigned long agp_special_page;
-EXPORT_SYMBOL(agp_special_page);
-#endif
 
 extern char _end[];
 extern char etext[], _stext[];
@@ -423,10 +419,6 @@ void __init mem_init(void)
 		     addr < PAGE_ALIGN((ulong)__va(rtas_data)+rtas_size) ;
 		     addr += PAGE_SIZE)
 			SetPageReserved(virt_to_page(addr));
-#endif
-#ifdef CONFIG_PPC_PMAC
-	if (agp_special_page)
-		SetPageReserved(virt_to_page(agp_special_page));
 #endif
 	for (addr = PAGE_OFFSET; addr < (unsigned long)high_memory;
 	     addr += PAGE_SIZE) {
@@ -463,11 +455,6 @@ void __init mem_init(void)
 	       initpages<< (PAGE_SHIFT-10),
 	       (unsigned long) (totalhigh_pages << (PAGE_SHIFT-10)));
 
-#ifdef CONFIG_PPC_PMAC
-	if (agp_special_page)
-		printk(KERN_INFO "AGP special page: 0x%08lx\n", agp_special_page);
-#endif
-
 	mem_init_done = 1;
 }
 
@@ -512,22 +499,6 @@ set_phys_avail(unsigned long total_memory)
 	if (rtas_data)
 		mem_pieces_remove(&phys_avail, rtas_data, rtas_size, 1);
 #endif
-#ifdef CONFIG_PPC_PMAC
-	/* Because of some uninorth weirdness, we need a page of
-	 * memory as high as possible (it must be outside of the
-	 * bus address seen as the AGP aperture). It will be used
-	 * by the r128 DRM driver
-	 *
-	 * FIXME: We need to make sure that page doesn't overlap any of the\
-	 * above. This could be done by improving mem_pieces_find to be able
-	 * to do a backward search from the end of the list.
-	 */
-	if (_machine == _MACH_Pmac && find_devices("uni-north-agp")) {
-		agp_special_page = (total_memory - PAGE_SIZE);
-		mem_pieces_remove(&phys_avail, agp_special_page, PAGE_SIZE, 0);
-		agp_special_page = (unsigned long)__va(agp_special_page);
-	}
-#endif /* CONFIG_PPC_PMAC */
 }
 
 /* Mark some memory as reserved by removing it from phys_avail. */

arch/ppc/platforms/Makefile

@@ -3,26 +3,18 @@
 #
 
 # Extra CFLAGS so we don't have to do relative includes
-CFLAGS_pmac_setup.o	+= -Iarch/$(ARCH)/mm
+CFLAGS_chrp_setup.o	+= -Iarch/$(ARCH)/mm
 
 obj-$(CONFIG_APUS)		+= apus_setup.o
 ifeq ($(CONFIG_APUS),y)
 obj-$(CONFIG_PCI)		+= apus_pci.o
 endif
-obj-$(CONFIG_PPC_PMAC)		+= pmac_pic.o pmac_setup.o pmac_time.o \
-					pmac_feature.o pmac_pci.o pmac_sleep.o \
-					pmac_low_i2c.o pmac_cache.o
 obj-$(CONFIG_PPC_CHRP)		+= chrp_setup.o chrp_time.o chrp_pci.o \
 					chrp_pegasos_eth.o
 ifeq ($(CONFIG_PPC_CHRP),y)
 obj-$(CONFIG_NVRAM)		+= chrp_nvram.o
 endif
 obj-$(CONFIG_PPC_PREP)		+= prep_pci.o prep_setup.o
-ifeq ($(CONFIG_PPC_PMAC),y)
-obj-$(CONFIG_NVRAM)		+= pmac_nvram.o
-obj-$(CONFIG_CPU_FREQ_PMAC)	+= pmac_cpufreq.o
-endif
-obj-$(CONFIG_PMAC_BACKLIGHT)	+= pmac_backlight.o
 obj-$(CONFIG_PREP_RESIDUAL)	+= residual.o
 obj-$(CONFIG_PQ2ADS)		+= pq2ads.o
 obj-$(CONFIG_TQM8260)		+= tqm8260_setup.o
@@ -47,6 +39,5 @@ obj-$(CONFIG_LITE5200)		+= lite5200.o
 obj-$(CONFIG_EV64360)		+= ev64360.o
 
 ifeq ($(CONFIG_SMP),y)
-obj-$(CONFIG_PPC_PMAC)		+= pmac_smp.o
 obj-$(CONFIG_PPC_CHRP)		+= chrp_smp.o
 endif

arch/ppc/platforms/chrp_pci.c

@@ -275,7 +275,7 @@ chrp_find_bridges(void)
 			setup_python(hose, dev);
 		} else if (is_mot
 			   || strncmp(model, "Motorola, Grackle", 17) == 0) {
-			setup_grackle(hose);
+			setup_indirect_pci(hose, 0xfec00000, 0xfee00000);
 		} else if (is_longtrail) {
 			void __iomem *p = ioremap(GG2_PCI_CONFIG_BASE, 0x80000);
 			hose->ops = &gg2_pci_ops;

arch/ppc/platforms/chrp_setup.c

@@ -53,6 +53,7 @@
 #include <asm/i8259.h>
 #include <asm/open_pic.h>
 #include <asm/xmon.h>
+#include "mem_pieces.h"
 
 unsigned long chrp_get_rtc_time(void);
 int chrp_set_rtc_time(unsigned long nowtime);
@@ -65,7 +66,6 @@ void rtas_display_progress(char *, unsigned short);
 void rtas_indicator_progress(char *, unsigned short);
 void btext_progress(char *, unsigned short);
 
-extern unsigned long pmac_find_end_of_memory(void);
 extern int of_show_percpuinfo(struct seq_file *, int);
 
 int _chrp_type;
@@ -467,6 +467,75 @@ chrp_init2(void)
 		ppc_md.progress("  Have fun!    ", 0x7777);
 }
 
+static struct device_node *memory_node;
+
+static int __init get_mem_prop(char *name, struct mem_pieces *mp)
+{
+	struct reg_property *rp;
+	int i, s;
+	unsigned int *ip;
+	int nac = prom_n_addr_cells(memory_node);
+	int nsc = prom_n_size_cells(memory_node);
+
+	ip = (unsigned int *) get_property(memory_node, name, &s);
+	if (ip == NULL) {
+		printk(KERN_ERR "error: couldn't get %s property on /memory\n",
+		       name);
+		return 0;
+	}
+	s /= (nsc + nac) * 4;
+	rp = mp->regions;
+	for (i = 0; i < s; ++i, ip += nac+nsc) {
+		if (nac >= 2 && ip[nac-2] != 0)
+			continue;
+		rp->address = ip[nac-1];
+		if (nsc >= 2 && ip[nac+nsc-2] != 0)
+			rp->size = ~0U;
+		else
+			rp->size = ip[nac+nsc-1];
+		++rp;
+	}
+	mp->n_regions = rp - mp->regions;
+
+	/* Make sure the pieces are sorted. */
+	mem_pieces_sort(mp);
+	mem_pieces_coalesce(mp);
+	return 1;
+}
+
+static unsigned long __init chrp_find_end_of_memory(void)
+{
+	unsigned long a, total;
+	struct mem_pieces phys_mem;
+
+	/*
+	 * Find out where physical memory is, and check that it
+	 * starts at 0 and is contiguous.  It seems that RAM is
+	 * always physically contiguous on Power Macintoshes.
+	 *
+	 * Supporting discontiguous physical memory isn't hard,
+	 * it just makes the virtual <-> physical mapping functions
+	 * more complicated (or else you end up wasting space
+	 * in mem_map).
+	 */
+	memory_node = find_devices("memory");
+	if (memory_node == NULL || !get_mem_prop("reg", &phys_mem)
+	    || phys_mem.n_regions == 0)
+		panic("No RAM??");
+	a = phys_mem.regions[0].address;
+	if (a != 0)
+		panic("RAM doesn't start at physical address 0");
+	total = phys_mem.regions[0].size;
+
+	if (phys_mem.n_regions > 1) {
+		printk("RAM starting at 0x%x is not contiguous\n",
+		       phys_mem.regions[1].address);
+		printk("Using RAM from 0 to 0x%lx\n", total-1);
+	}
+
+	return total;
+}
+
 void __init
 chrp_init(unsigned long r3, unsigned long r4, unsigned long r5,
 	  unsigned long r6, unsigned long r7)
@@ -525,7 +594,7 @@ chrp_init(unsigned long r3, unsigned long r4, unsigned long r5,
 	ppc_md.get_rtc_time   = chrp_get_rtc_time;
 	ppc_md.calibrate_decr = chrp_calibrate_decr;
 
-	ppc_md.find_end_of_memory = pmac_find_end_of_memory;
+	ppc_md.find_end_of_memory = chrp_find_end_of_memory;
 
 	if (rtas_data) {
 		struct device_node *rtas;

arch/ppc/platforms/chrp_time.c

@@ -163,13 +163,75 @@ unsigned long chrp_get_rtc_time(void)
 	return mktime(year, mon, day, hour, min, sec);
 }
 
+/*
+ * Calibrate the decrementer frequency with the VIA timer 1.
+ */
+#define VIA_TIMER_FREQ_6	4700000	/* time 1 frequency * 6 */
+
+/* VIA registers */
+#define RS		0x200		/* skip between registers */
+#define T1CL		(4*RS)		/* Timer 1 ctr/latch (low 8 bits) */
+#define T1CH		(5*RS)		/* Timer 1 counter (high 8 bits) */
+#define T1LL		(6*RS)		/* Timer 1 latch (low 8 bits) */
+#define T1LH		(7*RS)		/* Timer 1 latch (high 8 bits) */
+#define ACR		(11*RS)		/* Auxiliary control register */
+#define IFR		(13*RS)		/* Interrupt flag register */
+
+/* Bits in ACR */
+#define T1MODE		0xc0		/* Timer 1 mode */
+#define T1MODE_CONT	0x40		/*  continuous interrupts */
+
+/* Bits in IFR and IER */
+#define T1_INT		0x40		/* Timer 1 interrupt */
+
+static int __init chrp_via_calibrate_decr(void)
+{
+	struct device_node *vias;
+	volatile unsigned char __iomem *via;
+	int count = VIA_TIMER_FREQ_6 / 100;
+	unsigned int dstart, dend;
+
+	vias = find_devices("via-cuda");
+	if (vias == 0)
+		vias = find_devices("via");
+	if (vias == 0 || vias->n_addrs == 0)
+		return 0;
+	via = ioremap(vias->addrs[0].address, vias->addrs[0].size);
+
+	/* set timer 1 for continuous interrupts */
+	out_8(&via[ACR], (via[ACR] & ~T1MODE) | T1MODE_CONT);
+	/* set the counter to a small value */
+	out_8(&via[T1CH], 2);
+	/* set the latch to `count' */
+	out_8(&via[T1LL], count);
+	out_8(&via[T1LH], count >> 8);
+	/* wait until it hits 0 */
+	while ((in_8(&via[IFR]) & T1_INT) == 0)
+		;
+	dstart = get_dec();
+	/* clear the interrupt & wait until it hits 0 again */
+	in_8(&via[T1CL]);
+	while ((in_8(&via[IFR]) & T1_INT) == 0)
+		;
+	dend = get_dec();
+
+	tb_ticks_per_jiffy = (dstart - dend) / ((6 * HZ)/100);
+	tb_to_us = mulhwu_scale_factor(dstart - dend, 60000);
+
+	printk(KERN_INFO "via_calibrate_decr: ticks per jiffy = %u (%u ticks)\n",
+	       tb_ticks_per_jiffy, dstart - dend);
+
+	iounmap(via);
+	
+	return 1;
+}
 
 void __init chrp_calibrate_decr(void)
 {
 	struct device_node *cpu;
 	unsigned int freq, *fp;
 
-	if (via_calibrate_decr())
+	if (chrp_via_calibrate_decr())
 		return;
 
 	/*

arch/ppc/platforms/pmac_backlight.c

-/*
- * Miscellaneous procedures for dealing with the PowerMac hardware.
- * Contains support for the backlight.
- *
- *   Copyright (C) 2000 Benjamin Herrenschmidt
- *
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/stddef.h>
-#include <linux/reboot.h>
-#include <linux/nvram.h>
-#include <linux/console.h>
-#include <asm/sections.h>
-#include <asm/ptrace.h>
-#include <asm/io.h>
-#include <asm/pgtable.h>
-#include <asm/system.h>
-#include <asm/prom.h>
-#include <asm/machdep.h>
-#include <asm/nvram.h>
-#include <asm/backlight.h>
-
-#include <linux/adb.h>
-#include <linux/pmu.h>
-
-static struct backlight_controller *backlighter;
-static void* backlighter_data;
-static int backlight_autosave;
-static int backlight_level = BACKLIGHT_MAX;
-static int backlight_enabled = 1;
-static int backlight_req_level = -1;
-static int backlight_req_enable = -1;
-
-static void backlight_callback(void *);
-static DECLARE_WORK(backlight_work, backlight_callback, NULL);
-
-void register_backlight_controller(struct backlight_controller *ctrler,
-					  void *data, char *type)
-{
-	struct device_node* bk_node;
-	char *prop;
-	int valid = 0;
-
-	/* There's already a matching controller, bail out */
-	if (backlighter != NULL)
-		return;
-
-	bk_node = find_devices("backlight");
-
-#ifdef CONFIG_ADB_PMU
-	/* Special case for the old PowerBook since I can't test on it */
-	backlight_autosave = machine_is_compatible("AAPL,3400/2400")
-		|| machine_is_compatible("AAPL,3500");
-	if ((backlight_autosave
-	     || machine_is_compatible("AAPL,PowerBook1998")
-	     || machine_is_compatible("PowerBook1,1"))
-	    && !strcmp(type, "pmu"))
-		valid = 1;
-#endif
-	if (bk_node) {
-		prop = get_property(bk_node, "backlight-control", NULL);
-		if (prop && !strncmp(prop, type, strlen(type)))
-			valid = 1;
-	}
-	if (!valid)
-		return;
-	backlighter = ctrler;
-	backlighter_data = data;
-
-	if (bk_node && !backlight_autosave)
-		prop = get_property(bk_node, "bklt", NULL);
-	else
-		prop = NULL;
-	if (prop) {
-		backlight_level = ((*prop)+1) >> 1;
-		if (backlight_level > BACKLIGHT_MAX)
-			backlight_level = BACKLIGHT_MAX;
-	}
-
-#ifdef CONFIG_ADB_PMU
-	if (backlight_autosave) {
-		struct adb_request req;
-		pmu_request(&req, NULL, 2, 0xd9, 0);
-		while (!req.complete)
-			pmu_poll();
-		backlight_level = req.reply[0] >> 4;
-	}
-#endif
-	acquire_console_sem();
-	if (!backlighter->set_enable(1, backlight_level, data))
-		backlight_enabled = 1;
-	release_console_sem();
-
-	printk(KERN_INFO "Registered \"%s\" backlight controller,"
-	       "level: %d/15\n", type, backlight_level);
-}
-EXPORT_SYMBOL(register_backlight_controller);
-
-void unregister_backlight_controller(struct backlight_controller
-					    *ctrler, void *data)
-{
-	/* We keep the current backlight level (for now) */
-	if (ctrler == backlighter && data == backlighter_data)
-		backlighter = NULL;
-}
-EXPORT_SYMBOL(unregister_backlight_controller);
-
-static int __set_backlight_enable(int enable)
-{
-	int rc;
-
-	if (!backlighter)
-		return -ENODEV;
-	acquire_console_sem();
-	rc = backlighter->set_enable(enable, backlight_level,
-				     backlighter_data);
-	if (!rc)
-		backlight_enabled = enable;
-	release_console_sem();
-	return rc;
-}
-int set_backlight_enable(int enable)
-{
-	if (!backlighter)
-		return -ENODEV;
-	backlight_req_enable = enable;
-	schedule_work(&backlight_work);
-	return 0;
-}
-
-EXPORT_SYMBOL(set_backlight_enable);
-
-int get_backlight_enable(void)
-{
-	if (!backlighter)
-		return -ENODEV;
-	return backlight_enabled;
-}
-EXPORT_SYMBOL(get_backlight_enable);
-
-static int __set_backlight_level(int level)
-{
-	int rc = 0;
-
-	if (!backlighter)
-		return -ENODEV;
-	if (level < BACKLIGHT_MIN)
-		level = BACKLIGHT_OFF;
-	if (level > BACKLIGHT_MAX)
-		level = BACKLIGHT_MAX;
-	acquire_console_sem();
-	if (backlight_enabled)
-		rc = backlighter->set_level(level, backlighter_data);
-	if (!rc)
-		backlight_level = level;
-	release_console_sem();
-	if (!rc && !backlight_autosave) {
-		level <<=1;
-		if (level & 0x10)
-			level |= 0x01;
-		// -- todo: save to property "bklt"
-	}
-	return rc;
-}
-int set_backlight_level(int level)
-{
-	if (!backlighter)
-		return -ENODEV;
-	backlight_req_level = level;
-	schedule_work(&backlight_work);
-	return 0;
-}
-
-EXPORT_SYMBOL(set_backlight_level);
-
-int get_backlight_level(void)
-{
-	if (!backlighter)
-		return -ENODEV;
-	return backlight_level;
-}
-EXPORT_SYMBOL(get_backlight_level);
-
-static void backlight_callback(void *dummy)
-{
-	int level, enable;
-
-	do {
-		level = backlight_req_level;
-		enable = backlight_req_enable;
-		mb();
-
-		if (level >= 0)
-			__set_backlight_level(level);
-		if (enable >= 0)
-			__set_backlight_enable(enable);
-	} while(cmpxchg(&backlight_req_level, level, -1) != level ||
-		cmpxchg(&backlight_req_enable, enable, -1) != enable);
-}

arch/ppc/platforms/pmac_cache.S

-/*
- * This file contains low-level cache management functions
- * used for sleep and CPU speed changes on Apple machines.
- * (In fact the only thing that is Apple-specific is that we assume
- * that we can read from ROM at physical address 0xfff00000.)
- *
- *    Copyright (C) 2004 Paul Mackerras (paulus@samba.org) and
- *                       Benjamin Herrenschmidt (benh@kernel.crashing.org)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- */
-
-#include <linux/config.h>
-#include <asm/processor.h>
-#include <asm/ppc_asm.h>
-#include <asm/cputable.h>
-
-/*
- * Flush and disable all data caches (dL1, L2, L3). This is used
- * when going to sleep, when doing a PMU based cpufreq transition,
- * or when "offlining" a CPU on SMP machines. This code is over
- * paranoid, but I've had enough issues with various CPU revs and
- * bugs that I decided it was worth beeing over cautious
- */
-
-_GLOBAL(flush_disable_caches)
-#ifndef CONFIG_6xx
-	blr
-#else
-BEGIN_FTR_SECTION
-	b	flush_disable_745x
-END_FTR_SECTION_IFSET(CPU_FTR_SPEC7450)
-BEGIN_FTR_SECTION
-	b	flush_disable_75x
-END_FTR_SECTION_IFSET(CPU_FTR_L2CR)
-	b	__flush_disable_L1
-
-/* This is the code for G3 and 74[01]0 */
-flush_disable_75x:
-	mflr	r10
-
-	/* Turn off EE and DR in MSR */
-	mfmsr	r11
-	rlwinm	r0,r11,0,~MSR_EE
-	rlwinm	r0,r0,0,~MSR_DR
-	sync
-	mtmsr	r0
-	isync
-
-	/* Stop DST streams */
-BEGIN_FTR_SECTION
-	DSSALL
-	sync
-END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
-
-	/* Stop DPM */
-	mfspr	r8,SPRN_HID0		/* Save SPRN_HID0 in r8 */
-	rlwinm	r4,r8,0,12,10		/* Turn off HID0[DPM] */
-	sync
-	mtspr	SPRN_HID0,r4		/* Disable DPM */
-	sync
-
-	/* Disp-flush L1. We have a weird problem here that I never
-	 * totally figured out. On 750FX, using the ROM for the flush
-	 * results in a non-working flush. We use that workaround for
-	 * now until I finally understand what's going on. --BenH
-	 */
-
-	/* ROM base by default */
-	lis	r4,0xfff0
-	mfpvr	r3
-	srwi	r3,r3,16
-	cmplwi	cr0,r3,0x7000
-	bne+	1f
-	/* RAM base on 750FX */
-	li	r4,0
-1:	li	r4,0x4000
-	mtctr	r4
-1:	lwz	r0,0(r4)
-	addi	r4,r4,32
-	bdnz	1b
-	sync
-	isync
-
-	/* Disable / invalidate / enable L1 data */
-	mfspr	r3,SPRN_HID0
-	rlwinm	r3,r3,0,~(HID0_DCE | HID0_ICE)
-	mtspr	SPRN_HID0,r3
-	sync
-	isync
-	ori	r3,r3,(HID0_DCE|HID0_DCI|HID0_ICE|HID0_ICFI)
-	sync
-	isync
-	mtspr	SPRN_HID0,r3
-	xori	r3,r3,(HID0_DCI|HID0_ICFI)
-	mtspr	SPRN_HID0,r3
-	sync
-
-	/* Get the current enable bit of the L2CR into r4 */
-	mfspr	r5,SPRN_L2CR
-	/* Set to data-only (pre-745x bit) */
-	oris	r3,r5,L2CR_L2DO@h
-	b	2f
-	/* When disabling L2, code must be in L1 */
-	.balign 32
-1:	mtspr	SPRN_L2CR,r3
-3:	sync
-	isync
-	b	1f
-2:	b	3f
-3:	sync
-	isync
-	b	1b
-1:	/* disp-flush L2. The interesting thing here is that the L2 can be
-	 * up to 2Mb ... so using the ROM, we'll end up wrapping back to memory
-	 * but that is probbaly fine. We disp-flush over 4Mb to be safe
-	 */
-	lis	r4,2
-	mtctr	r4
-	lis	r4,0xfff0
-1:	lwz	r0,0(r4)
-	addi	r4,r4,32
-	bdnz	1b
-	sync
-	isync
-	lis	r4,2
-	mtctr	r4
-	lis	r4,0xfff0
-1:	dcbf	0,r4
-	addi	r4,r4,32
-	bdnz	1b
-	sync
-	isync
-
-	/* now disable L2 */
-	rlwinm	r5,r5,0,~L2CR_L2E
-	b	2f
-	/* When disabling L2, code must be in L1 */
-	.balign 32
-1:	mtspr	SPRN_L2CR,r5
-3:	sync
-	isync
-	b	1f
-2:	b	3f
-3:	sync
-	isync
-	b	1b
-1:	sync
-	isync
-	/* Invalidate L2. This is pre-745x, we clear the L2I bit ourselves */
-	oris	r4,r5,L2CR_L2I@h
-	mtspr	SPRN_L2CR,r4
-	sync
-	isync
-
-	/* Wait for the invalidation to complete */
-1:	mfspr	r3,SPRN_L2CR
-	rlwinm.	r0,r3,0,31,31
-	bne	1b
-
-	/* Clear L2I */
-	xoris	r4,r4,L2CR_L2I@h
-	sync
-	mtspr	SPRN_L2CR,r4
-	sync
-
-	/* now disable the L1 data cache */
-	mfspr	r0,SPRN_HID0
-	rlwinm	r0,r0,0,~(HID0_DCE|HID0_ICE)
-	mtspr	SPRN_HID0,r0
-	sync
-	isync
-
-	/* Restore HID0[DPM] to whatever it was before */
-	sync
-	mfspr	r0,SPRN_HID0
-	rlwimi	r0,r8,0,11,11		/* Turn back HID0[DPM] */
-	mtspr	SPRN_HID0,r0
-	sync
-
-	/* restore DR and EE */
-	sync
-	mtmsr	r11
-	isync
-
-	mtlr	r10
-	blr
-
-/* This code is for 745x processors */
-flush_disable_745x:
-	/* Turn off EE and DR in MSR */
-	mfmsr	r11
-	rlwinm	r0,r11,0,~MSR_EE
-	rlwinm	r0,r0,0,~MSR_DR
-	sync
-	mtmsr	r0
-	isync
-
-	/* Stop prefetch streams */
-	DSSALL
-	sync
-
-	/* Disable L2 prefetching */
-	mfspr	r0,SPRN_MSSCR0
-	rlwinm	r0,r0,0,0,29
-	mtspr	SPRN_MSSCR0,r0
-	sync
-	isync
-	lis	r4,0
-	dcbf	0,r4
-	dcbf	0,r4
-	dcbf	0,r4
-	dcbf	0,r4
-	dcbf	0,r4
-	dcbf	0,r4
-	dcbf	0,r4
-	dcbf	0,r4
-
-	/* Due to a bug with the HW flush on some CPU revs, we occasionally
-	 * experience data corruption. I'm adding a displacement flush along
-	 * with a dcbf loop over a few Mb to "help". The problem isn't totally
-	 * fixed by this in theory, but at least, in practice, I couldn't reproduce
-	 * it even with a big hammer...
-	 */
-
-        lis     r4,0x0002
-        mtctr   r4
- 	li      r4,0
-1:
-        lwz     r0,0(r4)
-        addi    r4,r4,32                /* Go to start of next cache line */
-        bdnz    1b
-        isync
-
-        /* Now, flush the first 4MB of memory */
-        lis     r4,0x0002
-        mtctr   r4
-	li      r4,0
-        sync
-1:
-        dcbf    0,r4
-        addi    r4,r4,32                /* Go to start of next cache line */
-        bdnz    1b
-
-	/* Flush and disable the L1 data cache */
-	mfspr	r6,SPRN_LDSTCR
-	lis	r3,0xfff0	/* read from ROM for displacement flush */
-	li	r4,0xfe		/* start with only way 0 unlocked */
-	li	r5,128		/* 128 lines in each way */
-1:	mtctr	r5
-	rlwimi	r6,r4,0,24,31
-	mtspr	SPRN_LDSTCR,r6
-	sync
-	isync
-2:	lwz	r0,0(r3)	/* touch each cache line */
-	addi	r3,r3,32
-	bdnz	2b
-	rlwinm	r4,r4,1,24,30	/* move on to the next way */
-	ori	r4,r4,1
-	cmpwi	r4,0xff		/* all done? */
-	bne	1b
-	/* now unlock the L1 data cache */
-	li	r4,0
-	rlwimi	r6,r4,0,24,31
-	sync
-	mtspr	SPRN_LDSTCR,r6
-	sync
-	isync
-
-	/* Flush the L2 cache using the hardware assist */
-	mfspr	r3,SPRN_L2CR
-	cmpwi	r3,0		/* check if it is enabled first */
-	bge	4f
-	oris	r0,r3,(L2CR_L2IO_745x|L2CR_L2DO_745x)@h
-	b	2f
-	/* When disabling/locking L2, code must be in L1 */
-	.balign 32
-1:	mtspr	SPRN_L2CR,r0	/* lock the L2 cache */
-3:	sync
-	isync
-	b	1f
-2:	b	3f
-3:	sync
-	isync
-	b	1b
-1:	sync
-	isync
-	ori	r0,r3,L2CR_L2HWF_745x
-	sync
-	mtspr	SPRN_L2CR,r0	/* set the hardware flush bit */
-3:	mfspr	r0,SPRN_L2CR	/* wait for it to go to 0 */
-	andi.	r0,r0,L2CR_L2HWF_745x
-	bne	3b
-	sync
-	rlwinm	r3,r3,0,~L2CR_L2E
-	b	2f
-	/* When disabling L2, code must be in L1 */
-	.balign 32
-1:	mtspr	SPRN_L2CR,r3	/* disable the L2 cache */
-3:	sync
-	isync
-	b	1f
-2:	b	3f
-3:	sync
-	isync
-	b	1b
-1:	sync
-	isync
-	oris	r4,r3,L2CR_L2I@h
-	mtspr	SPRN_L2CR,r4
-	sync
-	isync
-1:	mfspr	r4,SPRN_L2CR
-	andis.	r0,r4,L2CR_L2I@h
-	bne	1b
-	sync
-
-BEGIN_FTR_SECTION
-	/* Flush the L3 cache using the hardware assist */
-4:	mfspr	r3,SPRN_L3CR
-	cmpwi	r3,0		/* check if it is enabled */
-	bge	6f
-	oris	r0,r3,L3CR_L3IO@h
-	ori	r0,r0,L3CR_L3DO
-	sync
-	mtspr	SPRN_L3CR,r0	/* lock the L3 cache */
-	sync
-	isync
-	ori	r0,r0,L3CR_L3HWF
-	sync
-	mtspr	SPRN_L3CR,r0	/* set the hardware flush bit */
-5:	mfspr	r0,SPRN_L3CR	/* wait for it to go to zero */
-	andi.	r0,r0,L3CR_L3HWF
-	bne	5b
-	rlwinm	r3,r3,0,~L3CR_L3E
-	sync
-	mtspr	SPRN_L3CR,r3	/* disable the L3 cache */
-	sync
-	ori	r4,r3,L3CR_L3I
-	mtspr	SPRN_L3CR,r4
-1:	mfspr	r4,SPRN_L3CR
-	andi.	r0,r4,L3CR_L3I
-	bne	1b
-	sync
-END_FTR_SECTION_IFSET(CPU_FTR_L3CR)
-
-6:	mfspr	r0,SPRN_HID0	/* now disable the L1 data cache */
-	rlwinm	r0,r0,0,~HID0_DCE
-	mtspr	SPRN_HID0,r0
-	sync
-	isync
-	mtmsr	r11		/* restore DR and EE */
-	isync
-	blr
-#endif	/* CONFIG_6xx */

arch/ppc/platforms/pmac_low_i2c.c

-/*
- *  arch/ppc/platforms/pmac_low_i2c.c
- *
- *  Copyright (C) 2003 Ben. Herrenschmidt (benh@kernel.crashing.org)
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version
- *  2 of the License, or (at your option) any later version.
- *
- *  This file contains some low-level i2c access routines that
- *  need to be used by various bits of the PowerMac platform code
- *  at times where the real asynchronous & interrupt driven driver
- *  cannot be used. The API borrows some semantics from the darwin
- *  driver in order to ease the implementation of the platform
- *  properties parser
- */
-
-#include <linux/config.h>
-#include <linux/types.h>
-#include <linux/delay.h>
-#include <linux/sched.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/adb.h>
-#include <linux/pmu.h>
-#include <asm/keylargo.h>
-#include <asm/uninorth.h>
-#include <asm/io.h>
-#include <asm/prom.h>
-#include <asm/machdep.h>
-#include <asm/pmac_low_i2c.h>
-
-#define MAX_LOW_I2C_HOST	4
-
-#if 1
-#define DBG(x...) do {\
-		printk(KERN_DEBUG "KW:" x);	\
-	} while(0)
-#else
-#define DBGG(x...)
-#endif
-
-struct low_i2c_host;
-
-typedef int (*low_i2c_func_t)(struct low_i2c_host *host, u8 addr, u8 sub, u8 *data, int len);
-
-struct low_i2c_host
-{
-	struct device_node	*np;		/* OF device node */
-	struct semaphore	mutex;		/* Access mutex for use by i2c-keywest */
-	low_i2c_func_t		func;		/* Access function */
-	int			is_open : 1;	/* Poor man's access control */
-	int			mode;		/* Current mode */
-	int			channel;	/* Current channel */
-	int			num_channels;	/* Number of channels */
-	void __iomem *		base;		/* For keywest-i2c, base address */
-	int			bsteps;		/* And register stepping */
-	int			speed;		/* And speed */
-};
-
-static struct low_i2c_host	low_i2c_hosts[MAX_LOW_I2C_HOST];
-
-/* No locking is necessary on allocation, we are running way before
- * anything can race with us
- */
-static struct low_i2c_host *find_low_i2c_host(struct device_node *np)
-{
-	int i;
-
-	for (i = 0; i < MAX_LOW_I2C_HOST; i++)
-		if (low_i2c_hosts[i].np == np)
-			return &low_i2c_hosts[i];
-	return NULL;
-}
-
-/*
- *
- * i2c-keywest implementation (UniNorth, U2, U3, Keylargo's)
- *
- */
-
-/*
- * Keywest i2c definitions borrowed from drivers/i2c/i2c-keywest.h,
- * should be moved somewhere in include/asm-ppc/
- */
-/* Register indices */
-typedef enum {
-	reg_mode = 0,
-	reg_control,
-	reg_status,
-	reg_isr,
-	reg_ier,
-	reg_addr,
-	reg_subaddr,
-	reg_data
-} reg_t;
-
-
-/* Mode register */
-#define KW_I2C_MODE_100KHZ	0x00
-#define KW_I2C_MODE_50KHZ	0x01
-#define KW_I2C_MODE_25KHZ	0x02
-#define KW_I2C_MODE_DUMB	0x00
-#define KW_I2C_MODE_STANDARD	0x04
-#define KW_I2C_MODE_STANDARDSUB	0x08
-#define KW_I2C_MODE_COMBINED	0x0C
-#define KW_I2C_MODE_MODE_MASK	0x0C
-#define KW_I2C_MODE_CHAN_MASK	0xF0
-
-/* Control register */
-#define KW_I2C_CTL_AAK		0x01
-#define KW_I2C_CTL_XADDR	0x02
-#define KW_I2C_CTL_STOP		0x04
-#define KW_I2C_CTL_START	0x08
-
-/* Status register */
-#define KW_I2C_STAT_BUSY	0x01
-#define KW_I2C_STAT_LAST_AAK	0x02
-#define KW_I2C_STAT_LAST_RW	0x04
-#define KW_I2C_STAT_SDA		0x08
-#define KW_I2C_STAT_SCL		0x10
-
-/* IER & ISR registers */
-#define KW_I2C_IRQ_DATA		0x01
-#define KW_I2C_IRQ_ADDR		0x02
-#define KW_I2C_IRQ_STOP		0x04
-#define KW_I2C_IRQ_START	0x08
-#define KW_I2C_IRQ_MASK		0x0F
-
-/* State machine states */
-enum {
-	state_idle,
-	state_addr,
-	state_read,
-	state_write,
-	state_stop,
-	state_dead
-};
-
-#define WRONG_STATE(name) do {\
-		printk(KERN_DEBUG "KW: wrong state. Got %s, state: %s (isr: %02x)\n", \
-		       name, __kw_state_names[state], isr); \
-	} while(0)
-
-static const char *__kw_state_names[] = {
-	"state_idle",
-	"state_addr",
-	"state_read",
-	"state_write",
-	"state_stop",
-	"state_dead"
-};
-
-static inline u8 __kw_read_reg(struct low_i2c_host *host, reg_t reg)
-{
-	return in_8(host->base + (((unsigned)reg) << host->bsteps));
-}
-
-static inline void __kw_write_reg(struct low_i2c_host *host, reg_t reg, u8 val)
-{
-	out_8(host->base + (((unsigned)reg) << host->bsteps), val);
-	(void)__kw_read_reg(host, reg_subaddr);
-}
-
-#define kw_write_reg(reg, val)	__kw_write_reg(host, reg, val) 
-#define kw_read_reg(reg)	__kw_read_reg(host, reg) 
-
-
-/* Don't schedule, the g5 fan controller is too
- * timing sensitive
- */
-static u8 kw_wait_interrupt(struct low_i2c_host* host)
-{
-	int i;
-	u8 isr;
-	
-	for (i = 0; i < 200000; i++) {
-		isr = kw_read_reg(reg_isr) & KW_I2C_IRQ_MASK;
-		if (isr != 0)
-			return isr;
-		udelay(1);
-	}
-	return isr;
-}
-
-static int kw_handle_interrupt(struct low_i2c_host *host, int state, int rw, int *rc, u8 **data, int *len, u8 isr)
-{
-	u8 ack;
-
-	if (isr == 0) {
-		if (state != state_stop) {
-			DBG("KW: Timeout !\n");
-			*rc = -EIO;
-			goto stop;
-		}
-		if (state == state_stop) {
-			ack = kw_read_reg(reg_status);
-			if (!(ack & KW_I2C_STAT_BUSY)) {
-				state = state_idle;
-				kw_write_reg(reg_ier, 0x00);
-			}
-		}
-		return state;
-	}
-
-	if (isr & KW_I2C_IRQ_ADDR) {
-		ack = kw_read_reg(reg_status);
-		if (state != state_addr) {
-			kw_write_reg(reg_isr, KW_I2C_IRQ_ADDR);
-			WRONG_STATE("KW_I2C_IRQ_ADDR"); 
-			*rc = -EIO;
-			goto stop;
-		}
-		if ((ack & KW_I2C_STAT_LAST_AAK) == 0) {			
-			*rc = -ENODEV;
-			DBG("KW: NAK on address\n");
-			return state_stop;		     
-		} else {
-			if (rw) {
-				state = state_read;
-				if (*len > 1)
-					kw_write_reg(reg_control, KW_I2C_CTL_AAK);
-			} else {
-				state = state_write;
-				kw_write_reg(reg_data, **data);
-				(*data)++; (*len)--;
-			}
-		}
-		kw_write_reg(reg_isr, KW_I2C_IRQ_ADDR);
-	}
-
-	if (isr & KW_I2C_IRQ_DATA) {
-		if (state == state_read) {
-			**data = kw_read_reg(reg_data);
-			(*data)++; (*len)--;
-			kw_write_reg(reg_isr, KW_I2C_IRQ_DATA);
-			if ((*len) == 0)
-				state = state_stop;
-			else if ((*len) == 1)
-				kw_write_reg(reg_control, 0);
-		} else if (state == state_write) {
-			ack = kw_read_reg(reg_status);
-			if ((ack & KW_I2C_STAT_LAST_AAK) == 0) {
-				DBG("KW: nack on data write\n");
-				*rc = -EIO;
-				goto stop;
-			} else if (*len) {
-				kw_write_reg(reg_data, **data);
-				(*data)++; (*len)--;
-			} else {
-				kw_write_reg(reg_control, KW_I2C_CTL_STOP);
-				state = state_stop;
-				*rc = 0;
-			}
-			kw_write_reg(reg_isr, KW_I2C_IRQ_DATA);
-		} else {
-			kw_write_reg(reg_isr, KW_I2C_IRQ_DATA);
-			WRONG_STATE("KW_I2C_IRQ_DATA"); 
-			if (state != state_stop) {
-				*rc = -EIO;
-				goto stop;
-			}
-		}
-	}
-
-	if (isr & KW_I2C_IRQ_STOP) {
-		kw_write_reg(reg_isr, KW_I2C_IRQ_STOP);
-		if (state != state_stop) {
-			WRONG_STATE("KW_I2C_IRQ_STOP");
-			*rc = -EIO;
-		}
-		return state_idle;
-	}
-
-	if (isr & KW_I2C_IRQ_START)
-		kw_write_reg(reg_isr, KW_I2C_IRQ_START);
-
-	return state;
-
- stop:
-	kw_write_reg(reg_control, KW_I2C_CTL_STOP);	
-	return state_stop;
-}
-
-static int keywest_low_i2c_func(struct low_i2c_host *host, u8 addr, u8 subaddr, u8 *data, int len)
-{
-	u8 mode_reg = host->speed;
-	int state = state_addr;
-	int rc = 0;
-
-	/* Setup mode & subaddress if any */
-	switch(host->mode) {
-	case pmac_low_i2c_mode_dumb:
-		printk(KERN_ERR "low_i2c: Dumb mode not supported !\n");
-		return -EINVAL;
-	case pmac_low_i2c_mode_std:
-		mode_reg |= KW_I2C_MODE_STANDARD;
-		break;
-	case pmac_low_i2c_mode_stdsub:
-		mode_reg |= KW_I2C_MODE_STANDARDSUB;
-		kw_write_reg(reg_subaddr, subaddr);
-		break;
-	case pmac_low_i2c_mode_combined:
-		mode_reg |= KW_I2C_MODE_COMBINED;
-		kw_write_reg(reg_subaddr, subaddr);
-		break;
-	}
-
-	/* Setup channel & clear pending irqs */
-	kw_write_reg(reg_isr, kw_read_reg(reg_isr));
-	kw_write_reg(reg_mode, mode_reg | (host->channel << 4));
-	kw_write_reg(reg_status, 0);
-
-	/* Set up address and r/w bit */
-	kw_write_reg(reg_addr, addr);
-
-	/* Start sending address & disable interrupt*/
-	kw_write_reg(reg_ier, 0 /*KW_I2C_IRQ_MASK*/);
-	kw_write_reg(reg_control, KW_I2C_CTL_XADDR);
-
-	/* State machine, to turn into an interrupt handler */
-	while(state != state_idle) {
-		u8 isr = kw_wait_interrupt(host);
-		state = kw_handle_interrupt(host, state, addr & 1, &rc, &data, &len, isr);
-	}
-
-	return rc;
-}
-
-static void keywest_low_i2c_add(struct device_node *np)
-{
-	struct low_i2c_host	*host = find_low_i2c_host(NULL);
-	unsigned long		*psteps, *prate, steps, aoffset = 0;
-	struct device_node	*parent;
-
-	if (host == NULL) {
-		printk(KERN_ERR "low_i2c: Can't allocate host for %s\n",
-		       np->full_name);
-		return;
-	}
-	memset(host, 0, sizeof(*host));
-
-	init_MUTEX(&host->mutex);
-	host->np = of_node_get(np);	
-	psteps = (unsigned long *)get_property(np, "AAPL,address-step", NULL);
-	steps = psteps ? (*psteps) : 0x10;
-	for (host->bsteps = 0; (steps & 0x01) == 0; host->bsteps++)
-		steps >>= 1;
-	parent = of_get_parent(np);
-	host->num_channels = 1;
-	if (parent && parent->name[0] == 'u') {
-		host->num_channels = 2;
-		aoffset = 3;
-	}
-	/* Select interface rate */
-	host->speed = KW_I2C_MODE_100KHZ;
-	prate = (unsigned long *)get_property(np, "AAPL,i2c-rate", NULL);
-	if (prate) switch(*prate) {
-	case 100:
-		host->speed = KW_I2C_MODE_100KHZ;
-		break;
-	case 50:
-		host->speed = KW_I2C_MODE_50KHZ;
-		break;
-	case 25:
-		host->speed = KW_I2C_MODE_25KHZ;
-		break;
-	}	
-	host->mode = pmac_low_i2c_mode_std;
-	host->base = ioremap(np->addrs[0].address + aoffset,
-						np->addrs[0].size);
-	host->func = keywest_low_i2c_func;
-}
-
-/*
- *
- * PMU implementation
- *
- */
-
-
-#ifdef CONFIG_ADB_PMU
-
-static int pmu_low_i2c_func(struct low_i2c_host *host, u8 addr, u8 sub, u8 *data, int len)
-{
-	// TODO
-	return -ENODEV;
-}
-
-static void pmu_low_i2c_add(struct device_node *np)
-{
-	struct low_i2c_host	*host = find_low_i2c_host(NULL);
-
-	if (host == NULL) {
-		printk(KERN_ERR "low_i2c: Can't allocate host for %s\n",
-		       np->full_name);
-		return;
-	}
-	memset(host, 0, sizeof(*host));
-
-	init_MUTEX(&host->mutex);
-	host->np = of_node_get(np);	
-	host->num_channels = 3;
-	host->mode = pmac_low_i2c_mode_std;
-	host->func = pmu_low_i2c_func;
-}
-
-#endif /* CONFIG_ADB_PMU */
-
-void __init pmac_init_low_i2c(void)
-{
-	struct device_node *np;
-
-	/* Probe keywest-i2c busses */
-	np = of_find_compatible_node(NULL, "i2c", "keywest-i2c");
-	while(np) {
-		keywest_low_i2c_add(np);
-		np = of_find_compatible_node(np, "i2c", "keywest-i2c");
-	}
-
-#ifdef CONFIG_ADB_PMU
-	/* Probe PMU busses */
-	np = of_find_node_by_name(NULL, "via-pmu");
-	if (np)
-		pmu_low_i2c_add(np);
-#endif /* CONFIG_ADB_PMU */
-
-	/* TODO: Add CUDA support as well */
-}
-
-int pmac_low_i2c_lock(struct device_node *np)
-{
-	struct low_i2c_host *host = find_low_i2c_host(np);
-
-	if (!host)
-		return -ENODEV;
-	down(&host->mutex);
-	return 0;
-}
-EXPORT_SYMBOL(pmac_low_i2c_lock);
-
-int pmac_low_i2c_unlock(struct device_node *np)
-{
-	struct low_i2c_host *host = find_low_i2c_host(np);
-
-	if (!host)
-		return -ENODEV;
-	up(&host->mutex);
-	return 0;
-}
-EXPORT_SYMBOL(pmac_low_i2c_unlock);
-
-
-int pmac_low_i2c_open(struct device_node *np, int channel)
-{
-	struct low_i2c_host *host = find_low_i2c_host(np);
-
-	if (!host)
-		return -ENODEV;
-
-	if (channel >= host->num_channels)
-		return -EINVAL;
-
-	down(&host->mutex);
-	host->is_open = 1;
-	host->channel = channel;
-
-	return 0;
-}
-EXPORT_SYMBOL(pmac_low_i2c_open);
-
-int pmac_low_i2c_close(struct device_node *np)
-{
-	struct low_i2c_host *host = find_low_i2c_host(np);
-
-	if (!host)
-		return -ENODEV;
-
-	host->is_open = 0;
-	up(&host->mutex);
-
-	return 0;
-}
-EXPORT_SYMBOL(pmac_low_i2c_close);
-
-int pmac_low_i2c_setmode(struct device_node *np, int mode)
-{
-	struct low_i2c_host *host = find_low_i2c_host(np);
-
-	if (!host)
-		return -ENODEV;
-	WARN_ON(!host->is_open);
-	host->mode = mode;
-
-	return 0;
-}
-EXPORT_SYMBOL(pmac_low_i2c_setmode);
-
-int pmac_low_i2c_xfer(struct device_node *np, u8 addrdir, u8 subaddr, u8 *data, int len)
-{
-	struct low_i2c_host *host = find_low_i2c_host(np);
-
-	if (!host)
-		return -ENODEV;
-	WARN_ON(!host->is_open);
-
-	return host->func(host, addrdir, subaddr, data, len);
-}
-EXPORT_SYMBOL(pmac_low_i2c_xfer);
-