: linux-2.5.44uc1 (MMU-less support)

Hi All,

An updated uClinux patch is available at:

http://www.uclinux.org/pub/uClinux/uClinux-2.5.x/linux-2.5.44uc1.patch.gz

Changelog (alot :-)

1. v850 updates               (Miles Bader)
2. mm cleanups                (Christoph Hellwig)
3. cleanup of arch/m68knommu  (me)

- common files moved to ~/arch/m68knomu/kernel
- arch Makefiles rewritten
- 68360 drivers moved to drivers directory
- lots of other miscelleneous changes

Smaller specific patches:

. FEC ColdFire 5272 and 68360 ethernet drivers
http://www.uclinux.org/pub/uClinux/uClinux-2.5.x/linux-2.5.44uc1-fec.patch.gz

. m68k/ColdFire/v850 serial drivers
http://www.uclinux.org/pub/uClinux/uClinux-2.5.x/linux-2.5.44uc1-serial.patch.gz

. 68328 frame buffer
http://www.uclinux.org/pub/uClinux/uClinux-2.5.x/linux-2.5.44uc1-fb.patch.gz

. binfmt_flat loader
http://www.uclinux.org/pub/uClinux/uClinux-2.5.x/linux-2.5.44uc1-binflat.patch.gz

. m68knommu architecture
http://www.uclinux.org/pub/uClinux/uClinux-2.5.x/linux-2.5.44uc1-m68knommu.patch.gz

. v850 architecture
http://www.uclinux.org/pub/uClinux/uClinux-2.5.x/linux-2.5.44uc1-v850.patch.gz

. mm (MMU-less) only patch
http://www.uclinux.org/pub/uClinux/uClinux-2.5.x/linux-2.5.44uc1-mm.patch.gz

Regards
Greg

------------------------------------------------------------------------
Greg Ungerer -- Chief Software Wizard EMAIL: [email protected]
Snapgear Pty Ltd PHONE: +61 7 3279 1822
825 Stanley St, FAX: +61 7 3279 1820
Woolloongabba, QLD, 4102, Australia WEB: www.SnapGear.com

Took a look at them.
See comments below.

Sam

diff -Naur linux-2.5.44/arch/m68knommu/Makefile linux-2.5.44uc1/arch/m68knommu/Makefile

+PLATFORM = $(platform-y)

Use := no late evaluation required.
+MODEL = $(model-y)
See above.

+cpuclass-$(CONFIG_M68VZ328) := 68328
+CPUCLASS = $(cpuclass-y)
+CLASSDIR = arch/m68knommu/platform/$(cpuclass-y)/ ditto

+CLEAN_FILES += include/asm-$(ARCH)/asm-offsets.h.tmp \
+ include/asm-$(ARCH)/asm-offsets.h \
+ arch/$(ARCH)/kernel/asm-offsets.s
Use the new clean infrastrucute.

clean-files := include/asm-$(ARCH)/asm-offsets.h.tmp \
               include/asm-$(ARCH)/asm-offsets.h \
               arch/$(ARCH)/kernel/asm-offsets.s

+prepare: include/asm-$(ARCH)/asm-offsets.h

+archclean:
Add a call to clean boot - something like

	$(call descend arch/$(ARCH)/boot, subdirclean)

+
+arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
+ include/config/MARKER
+
+include/asm-$(ARCH)/asm-offsets.h.tmp: arch/$(ARCH)/kernel/asm-offsets.s
+ @$(generate-asm-offsets.h) < $< > $@
+
+include/asm-$(ARCH)/asm-offsets.h: include/asm-$(ARCH)/asm-offsets.h.tmp
+ @echo -n ' Generating $@'
+ @$(update-if-changed)
Combine it like this instead:

include/asm-$(ARCH)/asm-offsets.h: arch/$(ARCH)/kernel/asm-offsets.s \
				   include/asm include/linux/version.h \
				   include/config/MARKER
	@echo -n '  Generating $@'
	@$(generate-asm-offsets.h) < $< > $@
	@$(update-if-changed)

Thats more readable, and follow te normal way of doing it.

diff -Naur linux-2.5.44/arch/m68knommu/boot/Makefile linux-2.5.44uc1/arch/m68knommu/boot/Makefile
@@ -0,0 +1,5 @@
+clean:
+	rm -f *.[oa]
+
+dep depend:
+	:

The above can safely be deleted.

General comment.
Use
EXTRA_TARGET :=
in replacement for
EXTRA_TARGETS =
Thas is required in many platform specific makefiles
diff -Naur linux-2.5.44/arch/m68knommu/platform/68328/Makefile linux-2.5.44uc1/arch/m68knommu/platform/68328/Makefile +
+arch/m68knommu/platform/68328/$(BOARD)/bootlogo.rh: arch/m68knommu/platform/68328/bootlogo.h
+ perl arch/m68knommu/platform/68328/bootlogo.pl \
+ < arch/m68knommu/platform/68328/bootlogo.h \
+ > arch/m68knommu/platform/68328/$(BOARD)/bootlogo.rh
The following is more readable:
$obj)/$(BOARD)/bootlogo.rh: $(src)/bootlogo.h

	$(PERL) $(src)/bootlogo.pl < $(src)/bootlogo.h 
				   > $(obj)/$(BOARD)/bootlogo.rh
diff -Naur linux-2.5.44/arch/m68knommu/platform/68EZ328/Makefile linux-2.5.44uc1/arch/m68knommu/platform/68EZ328/Makefile
+
$(obj)/$(BOARD)/bootlogo.rh: $(src)/bootlogo.h
	$(PERL) $(src)/bootlogo.pl < $(src)/bootlogo.h \
				   > $(obj)/$(BOARD)/bootlogo.rh

The same changes a listed above.
diff -Naur linux-2.5.44/arch/m68knommu/platform/68VZ328/Makefile linux-2.5.44uc1/arch/m68knommu/platform/68VZ328/Makefile +arch/m68knommu/platform/68VZ328/$(BOARD)/bootlogo.rh: arch/m68knommu/platform/68EZ328/bootlogo.h
+ perl arch/m68knommu/platform/68328/bootlogo.pl \
+ < arch/m68knommu/platform/68EZ328/bootlogo.h \
+ > arch/m68knommu/platform/68VZ328/$(BOARD)/bootlogo.rh
Again - use $(obj) - $(src)

diff -Naur linux-2.5.44/arch/m68knommu/platform/Makefile linux-2.5.44uc1/arch/m68knommu/platform/Makefile @@ -0,0 +1,6 @@
+#
+# Makefile for the arch/m68knommu/platform.
+#
+
+include $(TOPDIR)/Rules.make
+
This makefile looks not at all usefull for me.

Hi Sam,

Thanks.
Rolled on these in to the next patch set.

Had to make one small adjustment:

                                          ^^^

This needs to be [email protected], "update-if-changed" specifically looks for the .tmp named file.

Regards
Greg

------------------------------------------------------------------------
Greg Ungerer -- Chief Software Wizard EMAIL: [email protected]
Snapgear Pty Ltd PHONE: +61 7 3279 1822
825 Stanley St, FAX: +61 7 3279 1820
Woolloongabba, QLD, 4102, Australia WEB: www.SnapGear.com

Hi,

2.5.44uc1 doesn't seem to include the latest v850 changes I sent you (on 21 Oct, against 2.5.44uc0), though DaveM responded saying he had applied that patch.

Did something get screwed up, or is 2.5.44uc1 just very old?

[The message-ID of the message containing that patch is <[email protected]>]

Thanks,

-Miles

Yo mama's so fat when she gets on an elevator it HAS to go down.

2.5.44uc2's the same BTW (doesn't include my changes).

-Miles

`Life is a boundless sea of bitterness'

Hi Miles,

Sorry, my mistake. I forgot to update those files in my local tree. I just pushed out a linux-2.5.44uc3 that contains them.

Regards
Greg

------------------------------------------------------------------------
Greg Ungerer -- Chief Software Wizard EMAIL: [email protected]
SnapGear Pty Ltd PHONE: +61 7 3435 2888
825 Stanley St, FAX: +61 7 3891 3630
Woolloongabba, QLD, 4102, Australia WEB: www.SnapGear.com