[POWERPC] bootwrapper: Build multiple cuImages

Currently, the kernel uses CONFIG_DEVICE_TREE to wrap a kernel image
with a fdt blob which means for any given configuration only one dts
file can be selected and so support for only one board can be built

This moves the selection of the default .dts file out of the kernel
config and into the bootwrapper makefile.  The makefile chooses which
images to build based on the kernel config and the dts source file
name is taken directly from the image name.  For example "cuImage.ebony"
will use "ebony.dts" as the device tree source file.

In addition, this patch allows a specific image to be requested from the
command line by adding "cuImage.%" and "treeImage.%" targets to the list
of valid built targets in arch/powerpc/Makefile.  This allows the default
dts selection to be overridden.

Another advantage to this change is it allows a single defconfig to be
supplied for all boards using the same chip family and only differing in
the device tree.

Important note: This patch adds two new zImage targets; zImage.dtb.% and
zImage.dtb.initrd.% for zImages with embedded dtb files.  Currently
there are 5 platforms which require this: ps3, ep405, mpc885ads, ep88xc,
adder875-redboot and ep8248e.  This patch *changes the zImage filenames*
for those platforms.  ie. 'zImage.ps3' is now 'zImage.dtb.ps3'.

This new zImage.dtb targets were added so that the .dts file could be
part of the dependancies list for building them.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 1348bbc9251031052cca137a805f6ee9c56c28c4..d21495f35727a6153c0fb905e5873f969e8875a9 100644 (file)
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -438,25 +438,6 @@ config WANT_DEVICE_TREE
        bool
        default n
 
-config DEVICE_TREE
-       string "Static device tree source file"
-       depends on WANT_DEVICE_TREE
-       help
-         This specifies the device tree source (.dts) file to be
-         compiled and included when building the bootwrapper.  If a
-         relative filename is given, then it will be relative to
-         arch/powerpc/boot/dts.  If you are not using the bootwrapper,
-         or do not need to build a dts into the bootwrapper, this
-         field is ignored.
-
-         For example, this is required when building a cuImage target
-         for an older U-Boot, which cannot pass a device tree itself.
-         Such a kernel will not work with a newer U-Boot that tries to
-         pass a device tree (unless you tell it not to).  If your U-Boot
-         does not mention a device tree in "help bootm", then use the
-         cuImage target and specify a device tree here.  Otherwise, use
-         the uImage target and leave this field blank.
-
 endmenu
 
 config ISA_DMA_API

diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index f70df9b64f8f601c420e857d0fba4a4f9b85276d..6845482f009354e531ede0d90cb5a6dde20c7c07 100644 (file)
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -151,14 +151,11 @@ core-$(CONFIG_XMON)               += arch/powerpc/xmon/
 drivers-$(CONFIG_OPROFILE)     += arch/powerpc/oprofile/
 
 # Default to zImage, override when needed
-defaultimage-y                 := zImage
-defaultimage-$(CONFIG_DEFAULT_UIMAGE) := uImage
-KBUILD_IMAGE := $(defaultimage-y)
-all: $(KBUILD_IMAGE)
+all: zImage
 
 CPPFLAGS_vmlinux.lds   := -Upowerpc
 
-BOOT_TARGETS = zImage zImage.initrd uImage
+BOOT_TARGETS = zImage zImage.initrd uImage treeImage.% cuImage.%
 
 PHONY += $(BOOT_TARGETS)
 
@@ -180,7 +177,7 @@ define archhelp
 endef
 
 install: vdso_install
-       $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
+       $(Q)$(MAKE) $(build)=$(boot) install
 
 vdso_install:
 ifeq ($(CONFIG_PPC64),y)

diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index 122a27078998e817931fb9a92d4e1950eb414bd9..49797a45416c8ce441c3255ae2b0ce41a9989dbb 100644 (file)
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -60,8 +60,9 @@ src-wlib := string.S crt0.S stdio.c main.c \
 src-plat := of.c cuboot-52xx.c cuboot-824x.c cuboot-83xx.c cuboot-85xx.c holly.c \
                cuboot-ebony.c treeboot-ebony.c prpmc2800.c \
                ps3-head.S ps3-hvcall.S ps3.c treeboot-bamboo.c cuboot-8xx.c \
-               cuboot-pq2.c cuboot-sequoia.c treeboot-walnut.c cuboot-bamboo.c \
-               fixed-head.S ep88xc.c cuboot-hpc2.c ep405.c cuboot-taishan.c \
+               cuboot-pq2.c cuboot-sequoia.c treeboot-walnut.c \
+               cuboot-bamboo.c cuboot-mpc7448hpc2.c cuboot-taishan.c \
+               fixed-head.S ep88xc.c ep405.c \
                cuboot-katmai.c cuboot-rainier.c redboot-8xx.c ep8248e.c \
                cuboot-warp.c cuboot-85xx-cpm2.c
 src-boot := $(src-wlib) $(src-plat) empty.c
@@ -123,6 +124,8 @@ targets             += $(patsubst $(obj)/%,%,$(obj-boot) wrapper.a)
 extra-y                := $(obj)/wrapper.a $(obj-plat) $(obj)/empty.o \
                   $(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds
 
+dtstree                := $(srctree)/$(src)/dts
+
 wrapper                :=$(srctree)/$(src)/wrapper
 wrapperbits    := $(extra-y) $(addprefix $(obj)/,addnote hack-coff mktree dtc) \
                        $(wrapper) FORCE
@@ -181,7 +184,7 @@ quiet_cmd_wrap      = WRAP    $@
 image-$(CONFIG_PPC_PSERIES)            += zImage.pseries
 image-$(CONFIG_PPC_MAPLE)              += zImage.pseries
 image-$(CONFIG_PPC_IBM_CELL_BLADE)     += zImage.pseries
-image-$(CONFIG_PPC_PS3)                        += zImage.ps3
+image-$(CONFIG_PPC_PS3)                        += zImage-dtb.ps3
 image-$(CONFIG_PPC_CELLEB)             += zImage.pseries
 image-$(CONFIG_PPC_CHRP)               += zImage.chrp
 image-$(CONFIG_PPC_EFIKA)              += zImage.chrp
@@ -191,33 +194,69 @@ image-$(CONFIG_PPC_PRPMC2800)             += zImage.prpmc2800
 image-$(CONFIG_PPC_ISERIES)            += zImage.iseries
 image-$(CONFIG_DEFAULT_UIMAGE)         += uImage
 
-ifneq ($(CONFIG_DEVICE_TREE),"")
-image-$(CONFIG_PPC_8xx)                        += cuImage.8xx
-image-$(CONFIG_PPC_EP88XC)             += zImage.ep88xc
-image-$(CONFIG_EP405)                  += zImage.ep405
-image-$(CONFIG_8260)                   += cuImage.pq2
-image-$(CONFIG_EP8248E)                        += zImage.ep8248e
-image-$(CONFIG_PPC_MPC52xx)            += cuImage.52xx
-image-$(CONFIG_STORCENTER)             += cuImage.824x
-image-$(CONFIG_PPC_83xx)               += cuImage.83xx
-image-$(CONFIG_PPC_85xx)               += cuImage.85xx
-ifeq ($(CONFIG_CPM2),y)
-image-$(CONFIG_PPC_85xx)               += cuImage.85xx-cpm2
-endif
-image-$(CONFIG_MPC7448HPC2)            += cuImage.hpc2
+#
+# Targets which embed a device tree blob
+#
+# Theses are default targets to build images which embed device tree blobs.
+# They are only required on boards which do not have FDT support in firmware.
+# Boards with newish u-boot firmare can use the uImage target above
+#
+
+# Board ports in arch/powerpc/platform/40x/Kconfig
+image-$(CONFIG_EP405)                  += zImage-dtb.ep405
+image-$(CONFIG_WALNUT)                 += treeImage.walnut
+
+# Board ports in arch/powerpc/platform/44x/Kconfig
 image-$(CONFIG_EBONY)                  += treeImage.ebony cuImage.ebony
 image-$(CONFIG_BAMBOO)                 += treeImage.bamboo cuImage.bamboo
 image-$(CONFIG_SEQUOIA)                        += cuImage.sequoia
 image-$(CONFIG_RAINIER)                        += cuImage.rainier
-image-$(CONFIG_WALNUT)                 += treeImage.walnut
 image-$(CONFIG_TAISHAN)                        += cuImage.taishan
 image-$(CONFIG_KATMAI)                 += cuImage.katmai
 image-$(CONFIG_WARP)                   += cuImage.warp
-endif
 
-ifneq ($(CONFIG_REDBOOT),"")
-image-$(CONFIG_PPC_8xx)                        += zImage.redboot-8xx
-endif
+# Board ports in arch/powerpc/platform/8xx/Kconfig
+image-$(CONFIG_PPC_MPC86XADS)          += cuImage.mpc866ads
+image-$(CONFIG_PPC_MPC885ADS)          += cuImage.mpc885ads
+image-$(CONFIG_PPC_EP88XC)             += zImage-dtb.ep88xc
+image-$(CONFIG_PPC_ADDER875)           += cuImage.adder875-uboot \
+                                          zImage-dtb.adder875-redboot
+
+# Board ports in arch/powerpc/platform/52xx/Kconfig
+image-$(CONFIG_PPC_LITE5200)           += cuImage.lite5200 cuImage.lite5200b
+
+# Board ports in arch/powerpc/platform/82xx/Kconfig
+image-$(CONFIG_MPC8272_ADS)            += cuImage.mpc8272ads
+image-$(CONFIG_PQ2FADS)                        += cuImage.pq2fads
+image-$(CONFIG_EP8248E)                        += zImage-dtb.ep8248e
+
+# Board ports in arch/powerpc/platform/83xx/Kconfig
+image-$(CONFIG_MPC832x_MDS)            += cuImage.mpc832x_mds
+image-$(CONFIG_MPC832x_RDB)            += cuImage.mpc832x_rdb
+image-$(CONFIG_MPC834x_ITX)            += cuImage.mpc8349emitx \
+                                          cuImage.mpc8349emitxgp
+image-$(CONFIG_MPC834x_MDS)            += cuImage.mpc834x_mds
+image-$(CONFIG_MPC836x_MDS)            += cuImage.mpc836x_mds
+
+# Board ports in arch/powerpc/platform/85xx/Kconfig
+image-$(CONFIG_MPC8540_ADS)            += cuImage.mpc8540ads
+image-$(CONFIG_MPC8560_ADS)            += cuImage.mpc8560ads
+image-$(CONFIG_MPC85xx_CDS)            += cuImage.mpc8541cds \
+                                          cuImage.mpc8548cds \
+                                          cuImage.mpc8555cds
+image-$(CONFIG_MPC85xx_MDS)            += cuImage.mpc8568mds
+image-$(CONFIG_MPC85xx_DS)             += cuImage.mpc8544ds \
+                                          cuImage.mpc8572ds
+image-$(CONFIG_TQM8540)                        += cuImage.tqm8540
+image-$(CONFIG_TQM8541)                        += cuImage.tqm8541
+image-$(CONFIG_TQM8555)                        += cuImage.tqm8555
+image-$(CONFIG_TQM8560)                        += cuImage.tqm8560
+image-$(CONFIG_SBC8548)                        += cuImage.tqm8548
+image-$(CONFIG_SBC8560)                        += cuImage.tqm8560
+
+# Board ports in arch/powerpc/platform/embedded6xx/Kconfig
+image-$(CONFIG_STORCENTER)             += cuImage.storcenter
+image-$(CONFIG_MPC7448HPC2)            += cuImage.mpc7448hpc2
 
 # For 32-bit powermacs, build the COFF and miboot images
 # as well as the ELF images.
@@ -233,24 +272,20 @@ targets   += $(image-y) $(initrd-y)
 
 $(addprefix $(obj)/, $(initrd-y)): $(obj)/ramdisk.image.gz
 
-# If CONFIG_WANT_DEVICE_TREE is set and CONFIG_DEVICE_TREE isn't an
-# empty string, define 'dts' to be path to the dts
-# CONFIG_DEVICE_TREE will have "" around it, make sure to strip them
-ifeq ($(CONFIG_WANT_DEVICE_TREE),y)
-ifneq ($(CONFIG_DEVICE_TREE),"")
-dts = $(if $(shell echo $(CONFIG_DEVICE_TREE) | grep '^/'),\
-       ,$(srctree)/$(src)/dts/)$(CONFIG_DEVICE_TREE:"%"=%)
-endif
-endif
-
 # Don't put the ramdisk on the pattern rule; when its missing make will try
 # the pattern rule with less dependencies that also matches (even with the
 # hard dependency listed).
-$(obj)/zImage.initrd.%: vmlinux $(wrapperbits) $(dts)
-       $(call if_changed,wrap,$*,$(dts),,$(obj)/ramdisk.image.gz)
+$(obj)/zImage.initrd.%: vmlinux $(wrapperbits)
+       $(call if_changed,wrap,$*,,,$(obj)/ramdisk.image.gz)
 
-$(obj)/zImage.%: vmlinux $(wrapperbits) $(dts)
-       $(call if_changed,wrap,$*,$(dts))
+$(obj)/zImage.%: vmlinux $(wrapperbits)
+       $(call if_changed,wrap,$*)
+
+$(obj)/zImage-dtb.initrd.%: vmlinux $(wrapperbits) $(dtstree)/%.dts
+       $(call if_changed,wrap,$*,$(dtstree)/$*.dts,,$(obj)/ramdisk.image.gz)
+
+$(obj)/zImage-dtb.%: vmlinux $(wrapperbits) $(dtstree)/%.dts
+       $(call if_changed,wrap,$*,$(dtstree)/$*.dts)
 
 # This cannot be in the root of $(src) as the zImage rule always adds a $(obj)
 # prefix
@@ -260,24 +295,17 @@ $(obj)/vmlinux.strip: vmlinux
 $(obj)/zImage.iseries: vmlinux
        $(STRIP) -s -R .comment $< -o $@
 
-$(obj)/zImage.ps3: vmlinux  $(wrapper) $(wrapperbits) $(srctree)/$(src)/dts/ps3.dts
-       $(STRIP) -s -R .comment $< -o vmlinux.strip
-       $(call cmd,wrap,ps3,$(srctree)/$(src)/dts/ps3.dts,,)
-
-$(obj)/zImage.initrd.ps3: vmlinux  $(wrapper) $(wrapperbits) $(srctree)/$(src)/dts/ps3.dts $(obj)/ramdisk.image.gz
-       $(call cmd,wrap,ps3,$(srctree)/$(src)/dts/ps3.dts,,$(obj)/ramdisk.image.gz)
-
 $(obj)/uImage: vmlinux $(wrapperbits)
        $(call if_changed,wrap,uboot)
 
-$(obj)/cuImage.%: vmlinux $(dts) $(wrapperbits)
-       $(call if_changed,wrap,cuboot-$*,$(dts))
+$(obj)/cuImage.%: vmlinux $(dtstree)/%.dts $(wrapperbits)
+       $(call if_changed,wrap,cuboot-$*,$(dtstree)/$*.dts)
 
-$(obj)/treeImage.initrd.%: vmlinux $(dts) $(wrapperbits)
-       $(call if_changed,wrap,treeboot-$*,$(dts),,$(obj)/ramdisk.image.gz)
+$(obj)/treeImage.initrd.%: vmlinux $(dtstree)/%.dts $(wrapperbits)
+       $(call if_changed,wrap,treeboot-$*,$(dtstree)/$*.dts,,$(obj)/ramdisk.image.gz)
 
-$(obj)/treeImage.%: vmlinux $(dts) $(wrapperbits)
-       $(call if_changed,wrap,treeboot-$*,$(dts))
+$(obj)/treeImage.%: vmlinux $(dtstree)/%.dts $(wrapperbits)
+       $(call if_changed,wrap,treeboot-$*,$(dtstree)/$*.dts)
 
 # If there isn't a platform selected then just strip the vmlinux.
 ifeq (,$(image-y))

diff --git a/arch/powerpc/boot/cuboot-hpc2.c b/arch/powerpc/boot/cuboot-hpc2.c
deleted file mode 100644 (file)
index 1b89532..0000000
--- a/arch/powerpc/boot/cuboot-hpc2.c
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
- *
- * Author: Roy Zang <tie-fei.zang@freescale.com>
- *
- * Description:
- * Old U-boot compatibility for mpc7448hpc2 board
- * Based on the code of Scott Wood <scottwood@freescale.com>
- * for 83xx and 85xx.
- *
- * This 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 "ops.h"
-#include "stdio.h"
-#include "cuboot.h"
-
-#define TARGET_HAS_ETH1
-#include "ppcboot.h"
-
-static bd_t bd;
-extern char _dtb_start[], _dtb_end[];
-
-static void platform_fixups(void)
-{
-       void *tsi;
-
-       dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
-       dt_fixup_mac_addresses(bd.bi_enetaddr, bd.bi_enet1addr);
-       dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 4, bd.bi_busfreq);
-       tsi = find_node_by_devtype(NULL, "tsi-bridge");
-       if (tsi)
-               setprop(tsi, "bus-frequency", &bd.bi_busfreq,
-                       sizeof(bd.bi_busfreq));
-}
-
-void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
-               unsigned long r6, unsigned long r7)
-{
-       CUBOOT_INIT();
-       fdt_init(_dtb_start);
-       serial_console_init();
-       platform_ops.fixups = platform_fixups;
-}

diff --git a/arch/powerpc/boot/cuboot-mpc7448hpc2.c b/arch/powerpc/boot/cuboot-mpc7448hpc2.c
new file mode 100644 (file)
index 0000000..1b89532
--- /dev/null
+++ b/arch/powerpc/boot/cuboot-mpc7448hpc2.c
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Author: Roy Zang <tie-fei.zang@freescale.com>
+ *
+ * Description:
+ * Old U-boot compatibility for mpc7448hpc2 board
+ * Based on the code of Scott Wood <scottwood@freescale.com>
+ * for 83xx and 85xx.
+ *
+ * This 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 "ops.h"
+#include "stdio.h"
+#include "cuboot.h"
+
+#define TARGET_HAS_ETH1
+#include "ppcboot.h"
+
+static bd_t bd;
+extern char _dtb_start[], _dtb_end[];
+
+static void platform_fixups(void)
+{
+       void *tsi;
+
+       dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
+       dt_fixup_mac_addresses(bd.bi_enetaddr, bd.bi_enet1addr);
+       dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 4, bd.bi_busfreq);
+       tsi = find_node_by_devtype(NULL, "tsi-bridge");
+       if (tsi)
+               setprop(tsi, "bus-frequency", &bd.bi_busfreq,
+                       sizeof(bd.bi_busfreq));
+}
+
+void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
+               unsigned long r6, unsigned long r7)
+{
+       CUBOOT_INIT();
+       fdt_init(_dtb_start);
+       serial_console_init();
+       platform_ops.fixups = platform_fixups;
+}

diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper
index 763a0c46f44128ef780dbb6a16ea22c98f70b88b..c3178155311ba1f565e8af685f61f83046b02db1 100755 (executable)
--- a/arch/powerpc/boot/wrapper
+++ b/arch/powerpc/boot/wrapper
@@ -158,6 +158,29 @@ miboot|uboot)
 cuboot*)
     binary=y
     gzip=
+    case "$platform" in
+    *-mpc885ads|*-adder875*|*-ep88xc)
+        platformo=$object/cuboot-8xx.o
+        ;;
+    *5200*|*-motionpro)
+        platformo=$object/cuboot-52xx.o
+        ;;
+    *-pq2fads|*-ep8248e|*-mpc8272*|*-storcenter)
+        platformo=$object/cuboot-pq2.o
+        ;;
+    *-mpc824*)
+        platformo=$object/cuboot-824x.o
+        ;;
+    *-mpc83*)
+        platformo=$object/cuboot-83xx.o
+        ;;
+    *-tqm8541|*-mpc8560*|*-tqm8560|*-tqm8555*)
+        platformo=$object/cuboot-85xx-cpm2.o
+        ;;
+    *-mpc85*)
+        platformo=$object/cuboot-85xx.o
+        ;;
+    esac
     ;;
 ps3)
     platformo="$object/ps3-head.o $object/ps3-hvcall.o $object/ps3.o"