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* sh: boot kernel with SR.BL setMagnus Damm2010-09-301-1/+3
| | | | | | | | | | | | | | | | | | | | | | Update the SH kernel to keep SR.BL set until the VBR register has been initialized. Useful to allow boot of the kernel even though exceptions are pending. Without this patch there is a window of time when exceptions such as NMI are enabled but no exception handlers are installed. This patch modifies both the zImage loader and the actual kernel to boot with BL=1, but the zImage loader is modfied in such a way that the init_sr value is unchanged to not break the zImage loader provided by kexec. Tested on sh7724 Ecovec and on the SH4AL-DSP core included in sh7372. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds2010-06-054-7/+122
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (23 commits) sh: Make intc messages consistent via pr_fmt. sh: make sure static declaration on ms7724se sh: make sure static declaration on mach-migor sh: make sure static declaration on mach-ecovec24 sh: make sure static declaration on mach-ap325rxa clocksource: sh_cmt: compute mult and shift before registration clocksource: sh_tmu: compute mult and shift before registration sh: PIO disabling for x3proto and urquell. sh: mach-sdk7786: conditionally disable PIO support. sh: support for platforms without PIO. usb: r8a66597-hcd pio to mmio accessor conversion. usb: gadget: r8a66597-udc pio to mmio accessor conversion. usb: gadget: m66592-udc pio to mmio accessor conversion. sh: add romImage MMCIF boot for sh7724 and Ecovec V2 sh: add boot code to MMCIF driver header sh: prepare MMCIF driver header file sh: allow romImage data between head.S and the zero page sh: Add support MMCIF for ecovec sh: remove duplicated #include input: serio: disable i8042 for non-cayman sh platforms. ...
| * sh: add romImage MMCIF boot for sh7724 and Ecovec V2Magnus Damm2010-05-314-4/+112
| | | | | | | | | | | | | | | | | | | | | | This patch is V2 of the MMCIF romImage boot support for sh7724 and the Ecovec board. With this patch applied and CONFIG_ROMIMAGE_MMCIF selected the romImage kernel image can be written to a MMC card and booted directly by the sh7724 cpu. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: allow romImage data between head.S and the zero pageMagnus Damm2010-05-312-3/+10
| | | | | | | | | | | | | | | | | | Extend the romImage code to allow putting data between the head.S file and the empty_zero_page. Needed in the case of more advanced loader code in a separate C file. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | Merge branch 'for-35' of git://repo.or.cz/linux-kbuildLinus Torvalds2010-06-011-1/+1
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-35' of git://repo.or.cz/linux-kbuild: (81 commits) kbuild: Revert part of e8d400a to resolve a conflict kbuild: Fix checking of scm-identifier variable gconfig: add support to show hidden options that have prompts menuconfig: add support to show hidden options which have prompts gconfig: remove show_debug option gconfig: remove dbg_print_ptype() and dbg_print_stype() kconfig: fix zconfdump() kconfig: some small fixes add random binaries to .gitignore kbuild: Include gen_initramfs_list.sh and the file list in the .d file kconfig: recalc symbol value before showing search results .gitignore: ignore *.lzo files headerdep: perlcritic warning scripts/Makefile.lib: Align the output of LZO kbuild: Generate modules.builtin in make modules_install Revert "kbuild: specify absolute paths for cscope" kbuild: Do not unnecessarily regenerate modules.builtin headers_install: use local file handles headers_check: fix perl warnings export_report: fix perl warnings ...
| * Rename .rodata.compressed to .rodata..compressed.Denys Vlasenko2010-03-031-1/+1
| | | | | | | | | | Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
* | sh: Fix zImage load address when CONFIG_32BIT=yMatt Fleming2010-04-251-0/+6
| | | | | | | | | | | | | | We can't necessarily use the P1SEG region to access RAM when running in 32BIT mode, so use CONFIG_MEMORY_START as the base address. Signed-off-by: Matt Fleming <matt@console-pimps.org>
* | sh: Fix address to decompress at when CONFIG_32BIT=yMatt Fleming2010-04-251-0/+4
| | | | | | | | | | | | | | | | | | When running in 32BIT mode the P1SEG region doesn't necessarily provide a window onto RAM (it depends how the bootloader setup the PMB). The correct location to place the decompressed kernel is the physical address of _text. Signed-off-by: Matt Fleming <matt@console-pimps.org>
* | arch/sh/boot/compressed/cache.c: Checkpatch cleanupAndrea Gelmini2010-03-011-1/+1
| | | | | | | | | | | | | | 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>
* | sh: Merge legacy and dynamic PMB modes.Paul Mundt2010-02-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | sh: Fix zImage boot using fixed PMB.Nobuhiro Iwamatsu2010-02-161-1/+1
| | | | | | | | | | | | 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>
* | sh: Kill off superfluous sh_bios references from compressed loader.Paul Mundt2010-01-282-23/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | sh: fixed PMB mode refactoring.Paul Mundt2010-01-131-8/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | sh: Add support for LZO-compressed kernels.Paul Mundt2010-01-133-6/+22
|/ | | | | | Plugs in LZO along with the others. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: include empty zero page in romImageMagnus Damm2009-12-042-3/+47
| | | | | | | | | 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>
* Merge branch 'sh/stable-updates'Paul Mundt2009-10-261-1/+5
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| * sh: add uImage.bin targetMagnus Damm2009-10-261-1/+5
| | | | | | | | | | | | | | | | | | 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>
* | sh: Obliterate the P1 area macrosMatt Fleming2009-10-101-1/+1
|/ | | | | | | | | | | | | 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>
* kbuild: use INSTALLKERNEL to select customized installkernel scriptSam Ravnborg2009-09-201-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* sh: Remove implicit sign extension from assembler immediatesStuart Menefy2009-08-241-1/+1
| | | | | | | | | | | | | | | 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>
* sh: fix romImage mach dir usageMagnus Damm2009-08-061-1/+1
| | | | | | | | 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>
* sh: romImage support V2Magnus Damm2009-07-294-2/+44
| | | | | | | | | | | | | 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>
*-. Merge branches 'sh/compressors' and 'sh/stable-updates'Paul Mundt2009-07-213-18/+30
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| * | sh: bzip2/lzma uImage support.Paul Mundt2009-07-213-18/+30
| | | | | | | | | | | | | | | | | | | | | 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>
* | | Merge branches 'sh/compressors' and 'sh/ftrace'Paul Mundt2009-07-121-1/+1
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| * | sh: Decouple mcount from ftrace.Paul Mundt2009-07-111-1/+1
| |/ | | | | | | | | | | | | | | | | 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>
* | sh64: Don't use PHYSADDR() for output_addr calculation.Paul Mundt2009-07-111-0/+4
| | | | | | | | | | | | | | Opencode the MEMORY_START offset directly, sh64 uses a slightly different calculation. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: rename arch/sh/boot/compressed/misc_32.c -> misc.cPaul Mundt2009-07-113-111/+2Star
| | | | | | | | | | | | | | 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>
* | sh: Consolidate the sh64 changes in arch/sh/boot/compressed/misc_32.cPaul Mundt2009-07-111-3/+14
| | | | | | | | | | | | | | 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>
* | sh: bzip2/lzma zImage support.Paul Mundt2009-07-116-13/+53
| | | | | | | | | | | | This plugs in bzip2 and lzma support for zImages. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | sh: Tidy up gzip-based zImage decompression.Paul Mundt2009-07-112-215/+18Star
|/ | | | | | | 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>
* sh: Merge the split arch/sh/boot/compressed/ Makefiles.Paul Mundt2009-05-093-90/+47Star
| | | | | | | 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>
* sh: Provide a BITS definition, use it in the arch/sh/boot/ Makefiles.Paul Mundt2009-05-093-10/+6Star
| | | | | | | | 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>
* sh: Fix up the sh64 zImage build.Paul Mundt2009-05-093-70/+2Star
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Tidy up the ldscript output format specifier.Paul Mundt2009-05-092-3/+4
| | | | | | | | 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>
* sh: Support fixed 32-bit PMB mappings from bootloader.Yoshihiro Shimoda2009-03-101-8/+12
| | | | | | | | | | | | 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>
* sh: FTRACE renamed to FUNCTION_TRACER.Paul Mundt2008-10-311-1/+1
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: ftrace support.Paul Mundt2008-09-211-0/+5
| | | | | | | 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>
* sh: Add the rest of the boot targets to arch/sh/boot/.gitignore.Paul Mundt2008-09-081-0/+3
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fix uImage load address in 32-bit mode.Chris Smith2008-09-081-0/+6
| | | | | | | 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>
* sh: fixup many sparse errors.Paul Mundt2008-09-081-1/+1
| | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Stub in a dummy ENTRY_OFFSET for uImage offset calculation.Paul Mundt2008-07-291-1/+2
| | | | | | | If none is defined, provide a sane default, as we do for the other options. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: migrate to arch/sh/include/Paul Mundt2008-07-291-2/+2
| | | | | | | | | | | | | 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>
* sh: fix uImage Entry PointYoshihiro Shimoda2008-07-281-1/+1
| | | | | | | | 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>
* sh: Fix up link error on SH-2 zImage with older binutils.Yoshinori Sato2008-07-284-15/+12Star
| | | | | Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* inflate: refactor inflate malloc codeThomas Petazzoni2008-07-252-78/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* sh: remove -traditional.Mathieu Desnoyers2008-05-082-2/+0Star
| | | | | | | 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>
* sh: fix compressed kernel buildManuel Lauss2008-04-152-2/+0Star
| | | | | | | | | | | | | | | | 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>
* sh: Fix up uImage compression typeYoshihiro Shimoda2008-03-311-1/+1
| | | | | | | Fix up uImage compression type. Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fix uImage build error.Paul Mundt2008-03-141-2/+2
| | | | | | | 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>
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