AcoSail/kernel_optimize_test
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b2ba34f370
kernel_optimize_test/arch/powerpc/boot
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David Gibson b2ba34f370 [POWERPC] Derive ebc ranges property from EBC registers 
In the device tree for Ebony, the 'ranges' property in the node for
the EBC bridge shows the mappings from the chip select / address lines
actually used for the EBC peripherals into the address space of the
OPB.  At present, these mappings are hardcoded in ebony.dts for the
mappings set up by the OpenBIOS firmware when it configures the EBC
bridge.

This replaces the hardcoded mappings with code in the zImage to
read the EBC configuration registers and create an appropriate ranges
property based on them.  This should make the zImage and kernel more
robust to changes in firmware configuration.  In particular, some of
the Ebony's DIP switches can change the effective address of the Flash
and other peripherals in OPB space.  With this patch, the kernel will
be able to cope with at least some of the possible variations.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-14 22:30:16 +10:00
..
dts [POWERPC] Derive ebc ranges property from EBC registers 2007-06-14 22:30:16 +10:00
.gitignore [POWERPC] bootwrapper: Add a cuboot platform and a cuImage target 2007-04-24 21:31:54 +10:00
44x.c [POWERPC] Derive ebc ranges property from EBC registers 2007-06-14 22:30:16 +10:00
44x.h [POWERPC] Derive ebc ranges property from EBC registers 2007-06-14 22:30:16 +10:00
addnote.c powerpc: Move ppc64 boot wrapper code over to arch/powerpc 2005-11-16 13:52:21 +11:00
addRamDisk.c powerpc: Move ppc64 boot wrapper code over to arch/powerpc 2005-11-16 13:52:21 +11:00
crt0.S [POWERPC] Fix building of COFF zImages 2007-06-07 22:21:31 +10:00
cuboot-83xx.c [POWERPC] U-boot passes the initrd as start/end, not start/size. 2007-05-12 11:32:48 +10:00
cuboot-85xx.c [POWERPC] U-boot passes the initrd as start/end, not start/size. 2007-05-12 11:32:48 +10:00
cuboot-ebony.c [POWERPC] Support for the Ebony 440GP reference board in arch/powerpc 2007-05-08 14:47:32 +10:00
dcr.h [POWERPC] Derive ebc ranges property from EBC registers 2007-06-14 22:30:16 +10:00
devtree.c [POWERPC] Add dt_xlate_addr() to bootwrapper 2007-04-30 11:02:05 +10:00
div64.S powerpc: Move ppc64 boot wrapper code over to arch/powerpc 2005-11-16 13:52:21 +11:00
dummy.c powerpc/32: Generate miboot images with ARCH=powerpc 2006-01-15 13:00:08 +11:00
ebony.c [POWERPC] Derive ebc ranges property from EBC registers 2007-06-14 22:30:16 +10:00
elf_util.c [POWERPC] Move bootwrapper ELF parsing routines to a file 2007-04-13 03:55:16 +10:00
elf.h [POWERPC] Move bootwrapper ELF parsing routines to a file 2007-04-13 03:55:16 +10:00
flatdevtree_env.h [POWERPC] Add flatdevtree source 2006-10-23 12:49:18 +10:00
flatdevtree_misc.c [POWERPC] bootwrapper: Add dt_ops methods. 2007-03-21 22:35:21 +11:00
flatdevtree.c [POWERPC] Fix bug adding properties with flatdevtree.c's ft_set_prop() 2007-05-17 21:11:13 +10:00
flatdevtree.h [POWERPC] bootwrapper: Make ft_create_node() pay attention to the parent parameter. 2007-03-16 15:49:15 +11:00
gunzip_util.c [POWERPC] boot: More verbose gunzip error message 2007-04-27 21:13:49 +10:00
gunzip_util.h [POWERPC] Add documentation for the zImage's gunzip convenience functions 2007-03-16 16:38:19 +11:00
hack-coff.c powerpc: Make COFF zImages for old 32-bit powermacs 2006-01-14 15:04:06 +11:00
holly.c [POWERPC] Holly bootwrapper 2007-05-08 11:54:21 +10:00
install.sh [PATCH] powerpc: trivial: modify comments to refer to new location of files 2006-02-10 16:53:51 +11:00
io.h [POWERPC] Add non-OF serial console support 2006-10-23 12:49:19 +10:00
main.c [POWERPC] bootwrapper: Decompress less, check more 2007-04-13 03:55:17 +10:00
Makefile [POWERPC] Split low-level OF-related bootloader code into separate files 2007-06-14 22:30:15 +10:00
mktree.c [POWERPC] Support for the Ebony 440GP reference board in arch/powerpc 2007-05-08 14:47:32 +10:00
mpsc.c [POWERPC] Add bootwrapper support for Marvell MPSC 2007-05-12 11:32:49 +10:00
mv64x60_i2c.c [POWERPC] Add bootwrapper support for Marvell/mv64x60 I2C 2007-05-12 11:32:49 +10:00
mv64x60.c [POWERPC] Add bootwrapper support for Marvell/mv64x60 hostbridge 2007-05-12 11:32:49 +10:00
mv64x60.h [POWERPC] Add bootwrapper support for Marvell/mv64x60 hostbridge 2007-05-12 11:32:49 +10:00
ns16550.c [POWERPC] bootwrapper: Add dt_xlate_reg(), and use it to find serial registers. 2007-04-13 03:55:15 +10:00
of.c [POWERPC] Split low-level OF-related bootloader code into separate files 2007-06-14 22:30:15 +10:00
of.h [POWERPC] Split low-level OF-related bootloader code into separate files 2007-06-14 22:30:15 +10:00
ofconsole.c [POWERPC] Split low-level OF-related bootloader code into separate files 2007-06-14 22:30:15 +10:00
oflib.c [POWERPC] Split low-level OF-related bootloader code into separate files 2007-06-14 22:30:15 +10:00
ops.h [POWERPC] Add bootwrapper support for Marvell MPSC 2007-05-12 11:32:49 +10:00
page.h powerpc: Move ppc64 boot wrapper code over to arch/powerpc 2005-11-16 13:52:21 +11:00
ppc_asm.h powerpc: Move ppc64 boot wrapper code over to arch/powerpc 2005-11-16 13:52:21 +11:00
ppcboot.h [POWERPC] bootwrapper: Add ppcboot.h 2007-04-24 21:31:55 +10:00
prpmc2800.c [POWERPC] Add bootwrapper support for Motorola PrPMC2800 platform 2007-05-12 11:32:50 +10:00
README powerpc: Move ppc64 boot wrapper code over to arch/powerpc 2005-11-16 13:52:21 +11:00
reg.h [POWERPC] New reg.h for the zImage 2007-03-26 15:11:20 +10:00
rs6000.h powerpc: Make COFF zImages for old 32-bit powermacs 2006-01-14 15:04:06 +11:00
serial.c [POWERPC] Add bootwrapper support for Marvell MPSC 2007-05-12 11:32:49 +10:00
simple_alloc.c [POWERPC] bootwrapper: Use `unsigned long' for malloc sizes 2007-04-24 22:06:54 +10:00
stdio.c [POWERPC] More bootwrapper reorganization 2006-10-18 15:50:18 +10:00
stdio.h [POWERPC] Add gcc format warnings to zImage printf() 2007-03-26 15:11:20 +10:00
string.h powerpc: Move ppc64 boot wrapper code over to arch/powerpc 2005-11-16 13:52:21 +11:00
string.S powerpc: Avoid unaligned loads and stores in boot memcpy code 2006-01-14 15:06:51 +11:00
treeboot-ebony.c [POWERPC] Support for the Ebony 440GP reference board in arch/powerpc 2007-05-08 14:47:32 +10:00
types.h [POWERPC] Start arch/powerpc/boot code reorganization 2006-09-20 15:09:58 +10:00
util.S [POWERPC] Add non-OF serial console support 2006-10-23 12:49:19 +10:00
wrapper [POWERPC] Fix zImage.coff generation for 32-bit pmac 2007-06-02 22:26:22 +10:00
zImage.coff.lds.S [POWERPC] zImage: Cleanup and improve zImage entry point 2007-03-13 13:35:03 +11:00
zImage.lds.S [POWERPC] zImage: Cleanup and improve zImage entry point 2007-03-13 13:35:03 +11:00

README 

To extract the kernel vmlinux, System.map, .config or initrd from the zImage binary:

objcopy -j .kernel:vmlinux -O binary zImage vmlinux.gz
objcopy -j .kernel:System.map -O binary zImage System.map.gz
objcopy -j .kernel:.config -O binary zImage config.gz
objcopy -j .kernel:initrd -O binary zImage.initrd initrd.gz


	Peter