path: root/arch/sh/boot
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2010-03-01arch/sh/boot/compressed/cache.c: Checkpatch cleanupAndrea Gelmini
arch/sh/boot/compressed/cache.c:8: WARNING: space prohibited between function name and open parenthesis '(' Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-02-18sh: Merge legacy and dynamic PMB modes.Paul Mundt
This implements a bit of rework for the PMB code, which permits us to kill off the legacy PMB mode completely. Rather than trusting the boot loader to do the right thing, we do a quick verification of the PMB contents to determine whether to have the kernel setup the initial mappings or whether it needs to mangle them later on instead. If we're booting from legacy mappings, the kernel will now take control of them and make them match the kernel's initial mapping configuration. This is accomplished by breaking the initialization phase out in to multiple steps: synchronization, merging, and resizing. With the recent rework, the synchronization code establishes page links for compound mappings already, so we build on top of this for promoting mappings and reclaiming unused slots. At the same time, the changes introduced for the uncached helpers also permit us to dynamically resize the uncached mapping without any particular headaches. The smallest page size is more than sufficient for mapping all of kernel text, and as we're careful not to jump to any far off locations in the setup code the mapping can safely be resized regardless of whether we are executing from it or not. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-02-16sh: Fix zImage boot using fixed PMB.Nobuhiro Iwamatsu
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-01-28sh: Kill off superfluous sh_bios references from compressed loader.Paul Mundt
The VBR value needs to be initialized in order for any of the bios trapping to work, and as we don't do that until slightly later in the boot process, this has no real chance of working. The only reason for using this in the past was due to the fact that early serial initialization wasn't possible, but now that early sh-sci is supported by everyone, there's no longer any reason to support the sh_bios hacks in the first place. Given that, we just kill off the references completely. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-01-13sh: fixed PMB mode refactoring.Paul Mundt
This introduces some much overdue chainsawing of the fixed PMB support. fixed PMB was introduced initially to work around the fact that dynamic PMB mode was relatively broken, though they were never intended to converge. The main areas where there are differences are whether the system is booted in 29-bit mode or 32-bit mode, and whether legacy mappings are to be preserved. Any system booting in true 32-bit mode will not care about legacy mappings, so these are roughly decoupled. Regardless of the entry point, PMB and 32BIT are directly related as far as the kernel is concerned, so we also switch back to having one select the other. With legacy mappings iterated through and applied in the initialization path it's now possible to finally merge the two implementations and permit dynamic remapping overtop of remaining entries regardless of whether boot mappings are crafted by hand or inherited from the boot loader. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-01-13sh: Add support for LZO-compressed kernels.Paul Mundt
Plugs in LZO along with the others. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-04sh: include empty zero page in romImageMagnus Damm
This patch updates the romImage code to include the empty_zero_page contents from vmlinux. Without this patch the empty zero page is lef uninitialized. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-26Merge branch 'sh/stable-updates'Paul Mundt
2009-10-26sh: add uImage.bin targetMagnus Damm
Add an uImage.bin target to allow uncompressed uImages. Useful for boards with busted u-boot decompression like the rsk7203 on my desk. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-10sh: Obliterate the P1 area macrosMatt Fleming
Replace the use of PHYSADDR() with __pa(). PHYSADDR() is based on the idea that all addresses in P1SEG are untranslated, so we can access an address's physical page as an offset from P1SEG. This doesn't work for CONFIG_PMB/CONFIG_PMB_FIXED because pages in P1SEG and P2SEG are used for PMB mappings and so can be translated to any physical address. Likewise, replace a P1SEGADDR() use with virt_to_phys(). Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-09-20kbuild: use INSTALLKERNEL to select customized installkernel scriptSam Ravnborg
Replace the use of CROSS_COMPILE to select a customized installkernel script with the possibility to set INSTALLKERNEL to select a custom installkernel script when running make: make INSTALLKERNEL=arm-installkernel install With this patch we are now more consistent across different architectures - they did not all support use of CROSS_COMPILE. The use of CROSS_COMPILE was a hack as this really belongs to gcc/binutils and the installkernel script does not change just because we change toolchain. The use of CROSS_COMPILE caused troubles with an upcoming patch that saves CROSS_COMPILE when a kernel is built - it would no longer be installable. [Thanks to Peter Z. for this hint] This patch undos what Ian did in commit: 0f8e2d62fa04441cd12c08ce521e84e5bd3f8a46 ("use ${CROSS_COMPILE}installkernel in arch/*/boot/install.sh") The patch has been lightly tested on x86 only - but all changes looks obvious. Acked-by: Peter Zijlstra <peterz@infradead.org> Acked-by: Mike Frysinger <vapier@gentoo.org> [blackfin] Acked-by: Russell King <linux@arm.linux.org.uk> [arm] Acked-by: Paul Mundt <lethal@linux-sh.org> [sh] Acked-by: "H. Peter Anvin" <hpa@zytor.com> [x86] Cc: Ian Campbell <icampbell@arcom.com> Cc: Tony Luck <tony.luck@intel.com> [ia64] Cc: Fenghua Yu <fenghua.yu@intel.com> [ia64] Cc: Hirokazu Takata <takata@linux-m32r.org> [m32r] Cc: Geert Uytterhoeven <geert@linux-m68k.org> [m68k] Cc: Kyle McMartin <kyle@mcmartin.ca> [parisc] Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> [powerpc] Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> [s390] Cc: Thomas Gleixner <tglx@linutronix.de> [x86] Cc: Ingo Molnar <mingo@redhat.com> [x86] Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-08-24sh: Remove implicit sign extension from assembler immediatesStuart Menefy
The SH instruction set has several instructions which accept an 8 bit immediate operand. For logical instructions this operand is zero extended, for arithmetic instructions the operand is sign extended. After adding an option to the assembler to check this, it was found that several pieces of assembly code were assuming this behaviour, and in one case getting it wrong. So this patch explicitly sign extends any immediate operands, which makes it obvious what is happening, and fixes the one case which got it wrong. Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-08-07sh: fix romImage mach dir usageMagnus Damm
This patch moves all the romImage related header files into the mach/ directory. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-30sh: romImage support V2Magnus Damm
This patch contains support for the romImage build target V2. The resulting romImage file should be burned to rom or flash and could be used as small boot loader. Board code should keep their setup code in the file romimage.h located in their mach include directory. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-21Merge branches 'sh/compressors' and 'sh/stable-updates'Paul Mundt
2009-07-21sh: bzip2/lzma uImage support.Paul Mundt
This builds on the bzip2/lzma zImage support change and wires it up for uImages. Based on the blackfin implementation. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-12Merge branches 'sh/compressors' and 'sh/ftrace'Paul Mundt
2009-07-11sh64: Don't use PHYSADDR() for output_addr calculation.Paul Mundt
Opencode the MEMORY_START offset directly, sh64 uses a slightly different calculation. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-11sh: rename arch/sh/boot/compressed/misc_32.c -> misc.cPaul Mundt
This is now used by both sh64 and regular sh, kill off the old sh64 version now too. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-11sh: Consolidate the sh64 changes in arch/sh/boot/compressed/misc_32.cPaul Mundt
This makes some minor changes to misc_32.c so that it can be used by sh64. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-11sh: bzip2/lzma zImage support.Paul Mundt
This plugs in bzip2 and lzma support for zImages. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-12sh: Tidy up gzip-based zImage decompression.Paul Mundt
This brings the zImage handling in to the current century, in preparation for handling the other compression types. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-11sh: Decouple mcount from ftrace.Paul Mundt
This adds a general CONFIG_MCOUNT in order to permit mcount generation without ftrace support. This is primarily for allowing platforms to enable aggressive stack overflow checking without having to enable ftrace support. Based on the sparc64 implementation. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-10sh: Merge the split arch/sh/boot/compressed/ Makefiles.Paul Mundt
This kills off the _64 variant and moves the _32 one over as the generic one to use. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-10sh: Provide a BITS definition, use it in the arch/sh/boot/ Makefiles.Paul Mundt
This introduces a BITS export that can handily be picked up by Makefiles for cleaner sharing. Reflect its use in arch/sh/boot/compressed/ in preparation for unifying the Makefiles. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-10sh: Fix up the sh64 zImage build.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-10sh: Tidy up the ldscript output format specifier.Paul Mundt
Tie this in to the Makefile directly, where we already know what we are running on. This tidies up the linker script a bit, and is prep work for unifying the arch/sh/boot/compressed linker scripts. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-10sh: Support fixed 32-bit PMB mappings from bootloader.Yoshihiro Shimoda
This provides a method for supporting fixed PMB mappings inherited from the bootloader, as an alternative to the dynamic PMB mapping currently used by the kernel. In the future these methods will be combined. P1/P2 area is handled like a regular 29-bit physical address, and local bus device are assigned P3 area addresses. Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-31sh: FTRACE renamed to FUNCTION_TRACER.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-21sh: ftrace support.Paul Mundt
This adds support for ftrace to SH. This only includes CONFIG_FTRACE, and does not handle dynamic ftrace presently. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08sh: Add the rest of the boot targets to arch/sh/boot/.gitignore.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08sh: Fix uImage load address in 32-bit mode.Chris Smith
Fix "make uImage" load and entry addresses in 32-bit mode. Signed-off-by: Chris Smith <chris.smith@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-08sh: fixup many sparse errors.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-07-29sh: Stub in a dummy ENTRY_OFFSET for uImage offset calculation.Paul Mundt
If none is defined, provide a sane default, as we do for the other options. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-07-29sh: migrate to arch/sh/include/Paul Mundt
This follows the sparc changes a439fe51a1f8eb087c22dd24d69cebae4a3addac. Most of the moving about was done with Sam's directions at: http://marc.info/?l=linux-sh&m=121724823706062&w=2 with subsequent hacking and fixups entirely my fault. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-07-28sh: fix uImage Entry PointYoshihiro Shimoda
fix the problem that cannot boot using uImage when PAGE_SIZE is 8kbyte or 64kbyte. Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-07-28sh: Fix up link error on SH-2 zImage with older binutils.Yoshinori Sato
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-07-25inflate: refactor inflate malloc codeThomas Petazzoni
Inflate requires some dynamic memory allocation very early in the boot process and this is provided with a set of four functions: malloc/free/gzip_mark/gzip_release. The old inflate code used a mark/release strategy rather than implement free. This new version instead keeps a count on the number of outstanding allocations and when it hits zero, it resets the malloc arena. This allows removing all the mark and release implementations and unifying all the malloc/free implementations. The architecture-dependent code must define two addresses: - free_mem_ptr, the address of the beginning of the area in which allocations should be made - free_mem_end_ptr, the address of the end of the area in which allocations should be made. If set to 0, then no check is made on the number of allocations, it just grows as much as needed The architecture-dependent code can also provide an arch_decomp_wdog() function call. This function will be called several times during the decompression process, and allow to notify the watchdog that the system is still running. If an architecture provides such a call, then it must define ARCH_HAS_DECOMP_WDOG so that the generic inflate code calls arch_decomp_wdog(). Work initially done by Matt Mackall, updated to a recent version of the kernel and improved by me. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Matt Mackall <mpm@selenic.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Mikael Starvik <mikael.starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: David Howells <dhowells@redhat.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Andi Kleen <andi@firstfloor.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-08sh: remove -traditional.Mathieu Desnoyers
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> CC: Sam Ravnborg <sam@ravnborg.org> CC: linux-sh@vger.kernel.org Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-04-16sh: fix compressed kernel buildManuel Lauss
commit 54a015104136974262afa4b8ddd943ea70dec8a2 broke zImage build on sh arch: LD vmlinux SYSMAP System.map SYSMAP .tmp_System.map AS arch/sh/boot/compressed/head_32.o In file included from /k/arch/sh/boot/compressed/head_32.S:11: /k/include/linux/linkage.h:34: error: syntax error in macro parameter list Fix it for both sh and sh64. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-03-31sh: Fix up uImage compression typeYoshihiro Shimoda
Fix up uImage compression type. Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-03-14sh: Fix uImage build error.Paul Mundt
The printf string was broken in the same way the zImage one was before, though the uImage managed to avoid getting fixed at that time. Do so now. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28sh: Fix up KERNEL_ENTRY calculation for uImage.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28sh: Fix up uImage target entry point.Thomas Betker
This patch changes the uImage target so that it generates a wrapped compressed vmlinux, rather than a wrapped zImage. The previous version matched the ARM, this version matches the PPC. However I would question how useful a self decompressing image is with a boot loader which does decompression, so I think this is more useful. I also feel it matches the descrition in the help text ("Compressed kernel image") better. Signed-off-by: Thomas Betker <thomas.betker@5etech.eu> Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28sh: Clean up places that make 29-bit physical assumptions.Stuart Menefy
Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28sh: comment tidying for sh64->sh migration.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-01-28sh: Merge the sh64 zImage bits.Paul Mundt
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-07sh: Fix compression method when making uImage.Nobuhiro Iwamatsu
When uImage is made by using 'make uImage', zImage is used. If zImage is used, the compression method need not be set. However, it is set for "gzip" for a compression method. I corrected to set "none". Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-10-14kbuild: enable 'make CFLAGS=...' to add additional options to CCSam Ravnborg
The variable CFLAGS is a wellknown variable and the usage by kbuild may result in unexpected behaviour. On top of that several people over time has asked for a way to pass in additional flags to gcc. This patch replace use of CFLAGS with KBUILD_CFLAGS all over the tree and enabling one to use: make CFLAGS=... to specify additional gcc commandline options. One usecase is when trying to find gcc bugs but other use cases has been requested too. Patch was tested on following architectures: alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k Test was simple to do a defconfig build, apply the patch and check that nothing got rebuild. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2007-07-26sh: arch/sh/boot - fix shell usageDavid McCullough
Fix the shell call to explicitly use bash, since they are bash specific and not all systems have bash as the default. Signed-off-by: David McCullough <david_mccullough@au.securecomputing.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>