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* MIPS: sead3: Move device-trees to arch/mips/boot/dts/Andrew Bresticker2014-09-222-26/+0
| | | | | | | | | | | | | | | | | | | | | | | | Move the SEAD-3 device-tree to arch/mips/boot/dts/ and update the Makefiles accordingly. Since SEAD-3 requires the device-tree to be built into the kernel, select BUILTIN_DTB when building for SEAD-3. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org> Cc: James Hogan <james.hogan@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: David Daney <david.daney@cavium.com> Cc: John Crispin <blogic@openwrt.org> Cc: Jayachandran C <jchandra@broadcom.com> Cc: Qais Yousef <qais.yousef@imgtec.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: devicetree@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/7555/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds2014-06-091-23/+13
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull MIPS updates from Ralf Baechle: - three fixes for 3.15 that didn't make it in time - limited Octeon 3 support. - paravirtualization support - improvment to platform support for Netlogix SOCs. - add support for powering down the Malta eval board in software - add many instructions to the in-kernel microassembler. - add support for the BPF JIT. - minor cleanups of the BCM47xx code. - large cleanup of math emu code resulting in significant code size reduction, better readability of the code and more accurate emulation. - improvments to the MIPS CPS code. - support C3 power status for the R4k count/compare clock device. - improvments to the GIO support for older SGI workstations. - increase number of supported CPUs to 256; this can be reached on certain embedded multithreaded ccNUMA configurations. - various small cleanups, updates and fixes * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (173 commits) MIPS: IP22/IP28: Improve GIO support MIPS: Octeon: Add twsi interrupt initialization for OCTEON 3XXX, 5XXX, 63XX DEC: Document the R4k MB ASIC mini interrupt controller DEC: Add self as the maintainer MIPS: Add microMIPS MSA support. MIPS: Replace calls to obsolete strict_strto call with kstrto* equivalents. MIPS: Replace obsolete strict_strto call with kstrto MIPS: BFP: Simplify code slightly. MIPS: Call find_vma with the mmap_sem held MIPS: Fix 'write_msa_##' inline macro. MIPS: Fix MSA toolchain support detection. mips: Update the email address of Geert Uytterhoeven MIPS: Add minimal defconfig for mips_paravirt MIPS: Enable build for new system 'paravirt' MIPS: paravirt: Add pci controller for virtio MIPS: Add code for new system 'paravirt' MIPS: Add functions for hypervisor call MIPS: OCTEON: Add OCTEON3 to __get_cpu_type MIPS: Add function get_ebase_cpunum MIPS: Add minimal support for OCTEON3 to c-r4k.c ...
| * MIPS: SEAD3: Introduce the use of the managed version of kzallocHimangi Saraogi2014-05-261-23/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch moves data allocated using kzalloc to managed data allocated using devm_kzalloc and cleans now unnecessary kfrees in probe and remove functions. Also, the now unnecessary labels out_mem and out are done away with. The error handling code is moved under if and return 0 is now at the end of the function. The following Coccinelle semantic patch was used for making the change: @platform@ identifier p, probefn, removefn; @@ struct platform_driver p = { .probe = probefn, .remove = removefn, }; @prb@ identifier platform.probefn, pdev; expression e, e1, e2; @@ probefn(struct platform_device *pdev, ...) { <+... - e = kzalloc(e1, e2) + e = devm_kzalloc(&pdev->dev, e1, e2) ... ?-kfree(e); ...+> } @rem depends on prb@ identifier platform.removefn; expression e; @@ removefn(...) { <... - kfree(e); ...> } Signed-off-by: Himangi Saraogi <himangi774@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Tested-by: Markos Chandras <markos.chandras@imgtec.com> Reviewed-by: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/6977/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | mips: convert fdt pointers to opaque pointersRob Herring2014-04-301-4/+4
|/ | | | | | | | | | The architecture code does not need to access the internals of the FDT blob directly, so make the pointers to it void * and use char arrays for section variables. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Tested-by: Grant Likely <grant.likely@linaro.org>
* MIPS: SEAD3: Don't use module_init in non-modular sead3-mtd.c codePaul Gortmaker2014-03-311-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | The sead3-mtd.o is built for obj-y -- and hence this code is always present. It will never be modular, so using module_init as an alias for __initcall can be somewhat misleading. Fix this up now, so that we can relocate module_init from init.h into module.h in the future. If we don't do this, we'd have to add module.h to obviously non-modular code, and that would be a worse thing. Note that direct use of __initcall is discouraged, vs. one of the priority categorized subgroups. As __initcall gets mapped onto device_initcall, our use of device_initcall directly in this change means that the runtime impact is zero -- it will remain at level 6 in initcall ordering. We also fix a missing semicolon, which this change uncovers. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Reported-by: kbuild test robot <fengguang.wu@intel.com> Cc: linux-mips@linux-mips.org Cc: fengguang.wu@intel.com Patchwork: https://patchwork.linux-mips.org/patch/6412/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* mips: delete non-required instances of include <linux/init.h>Paul Gortmaker2014-01-241-1/+0
| | | | | | | | | | | None of these files are actually using any __init type directives and hence don't need to include <linux/init.h>. Most are just a left over from __devinit and __cpuinit removal, or simply due to code getting copied from one driver to the next. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6320/
* MIPS: sead3: use unflatten_and_copy_device_tree()Qais Yousef2014-01-231-10/+1
| | | | | | | | | | | we want the device tree to be unflattened into non init memory so it can be accessed later by, for example, a probing function of a driver module. Signed-off-by: Qais Yousef <qais.yousef@imgtec.com> Reviewed-by: Paul Burton <paul.burton@imgtec.com> Reviewed-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6210/
* MIPS: sead3: populate platform devices from device treeQais Yousef2014-01-231-0/+7
| | | | | | | | Signed-off-by: Qais Yousef <qais.yousef@imgtec.com> Reviewed-by: Paul Burton <paul.burton@imgtec.com> Reviewed-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6209/
* MIPS: sead3: remove chosen nodeQais Yousef2014-01-231-4/+0
| | | | | | | | | | | | | | | | | | | The defaults are not always applicable and it makes it hard for the bootloader to override them. By removing it we give the bootloader full control over what command line parameters to pass. Without this change we will need to modify the built-in dtb to add bootloader cmd line parameters or do some work to append them after we unflatten the device tree. Sead3 is a development board, that's why we want to be able to change boot parameters on the fly from the bootloader. Signed-off-by: Qais Yousef <qais.yousef@imgtec.com> Reviewed-by: Paul Burton <paul.burton@imgtec.com> Reviewed-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6208/
* MIPS: sead3: allow cmdline/env to change memory size using memsize paramQais Yousef2014-01-232-0/+70
| | | | | | | | | | | if the user sets memsize parameter in commandline or bootloader environment, we use it to modify the built-in dtb memory size Signed-off-by: Qais Yousef <qais.yousef@imgtec.com> Reviewed-by: Paul Burton <paul.burton@imgtec.com> Reviewed-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6207/
* MIPS: sead3: remove unused cpu_khz variablePaul Burton2014-01-231-4/+0
| | | | | | | | | | | This variable seems to have been copied from Malta when SEAD3 support was introduced, but is likewise unused. Remove it. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Reviewed-by: Markos Chandras <markos.chandras@imgtec.com> Reviewed-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6172/
* mips: add explicit includes of prom.hRob Herring2013-10-091-0/+2
| | | | | | | | | In preparation of removing prom.h include by of.h, add explicit includes. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Grant Likely <grant.likely@linaro.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org
* MIPS: Cleanup CP0 PRId and CP1 FPIR register access masksMaciej W. Rozycki2013-09-181-1/+2
| | | | | | | | | | Replace hardcoded CP0 PRId and CP1 FPIR register access masks throughout. The change does not touch places that use shifted or partial masks. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5838/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Delete __cpuinit/__CPUINIT usage from MIPS codePaul Gortmaker2013-07-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 3747069b25e419f6b51395f48127e9812abc3596 upstream. The __cpuinit type of throwaway sections might have made sense some time ago when RAM was more constrained, but now the savings do not offset the cost and complications. For example, the fix in commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time") is a good example of the nasty type of bugs that can be created with improper use of the various __init prefixes. After a discussion on LKML[1] it was decided that cpuinit should go the way of devinit and be phased out. Once all the users are gone, we can then finally remove the macros themselves from linux/init.h. Note that some harmless section mismatch warnings may result, since notify_cpu_starting() and cpu_up() are arch independent (kernel/cpu.c) and are flagged as __cpuinit -- so if we remove the __cpuinit from the arch specific callers, we will also get section mismatch warnings. As an intermediate step, we intend to turn the linux/init.h cpuinit related content into no-ops as early as possible, since that will get rid of these warnings. In any case, they are temporary and harmless. Here, we remove all the MIPS __cpuinit from C code and __CPUINIT from asm files. MIPS is interesting in this respect, because there are also uasm users hiding behind their own renamed versions of the __cpuinit macros. [1] https://lkml.org/lkml/2013/5/20/589 [ralf@linux-mips.org: Folded in Paul's followup fix.] Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5494/ Patchwork: https://patchwork.linux-mips.org/patch/5495/ Patchwork: https://patchwork.linux-mips.org/patch/5509/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: sead3: Fix ability to perform a soft reset.Steven J. Hill2013-06-211-2/+3
| | | | | | | | | | | | | The soft reset register address and reset value to be written are incorrect for the SEAD-3 platform. This patch fixes them such that the SEAD-3 can actually perform a soft reset instead of causing an exception. Also remove usage of 'include/asm/mips-boards/generic.h' header file. Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5454/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Move 'gic_present' to common location.Steven J. Hill2013-05-091-1/+0
| | | | | | | | | Move the global variable 'gic_present' to be defined in the file 'arch/mips/kernel/irq-gic.c' instead of defining it individually for each platform making use of the GIC. Also change the type to be an unsigned integer instead of signed. Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
* MIPS: microMIPS: Add support for exception handling.Steven J. Hill2013-05-091-0/+48
| | | | | | | | | All exceptions must be taken in microMIPS mode, never in classic MIPS mode or the kernel falls apart. A few NOP instructions are used to maintain the correct alignment of microMIPS versions of the exception vectors. Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
* MIPS: FW: Remove obsolete header file for MTI platforms.Steven J. Hill2013-05-084-4/+0
| | | | | | | | | | | | | | | Remove 'arch/mips/include/asm/mips-boards/prom.h' and get rid of all inclusions of it by Malta and SEAD-3 platforms. [ralf@linux-mips.org: Fold in John Crispin <blogic@openwrt.org>'s "MIPS: ar7 powertv build"]. [ralf@linux-mips.org: Fold in John Crispin <blogic@openwrt.org>'s "MIPS: unbreak powertv build"]. [ralf@linux-mips.org: Test. Build. Your. Fscking. Code. Or...] Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
* MIPS: FW: sead3: Use new common FW library variable processing.Steven J. Hill2013-05-084-86/+51
| | | | | | Remove old YAMON prom code and use common firmware library code. Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
* MIPS: sead3: Use generic suspend/resume for LEDs.Lars-Peter Clausen2013-05-081-22/+2
| | | | | | | | | | Setting the LED_CORE_SUSPENDRESUME flag causes the LED driver core to call led_classdev_suspend/led_classdev_resume during suspend/resume. Since this is exactly what the driver's custom suspend/resume callbacks do we can replace them by setting the LED_CORE_SUSPENDRESUME flag. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
* MIPS: Add option to disable software I/O coherency.Steven J. Hill2013-05-011-3/+0
| | | | | | | | | Some MIPS controllers have hardware I/O coherency. This patch detects those and turns off software coherency. A new kernel command line option also allows the user to manually turn software coherency on or off. Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
* MIPS: Whitespace cleanup.Ralf Baechle2013-02-018-57/+57
| | | | | | | | Having received another series of whitespace patches I decided to do this once and for all rather than dealing with this kind of patches trickling in forever. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Nuke empty lines at end of files.Ralf Baechle2013-02-011-1/+0
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: SEAD3: Implement OF support.Steven J. Hill2013-02-015-141/+65
| | | | | | | | | | | | | | Activate USE_OF for SEAD-3 platform. Add basic DTS file and convert memory detection and reservations to use OF. [ralf@linux-mips.org: Remove unnecessary #ifdef wrapper in generic.h. Make <asm/mips-boards/generic.h> inclusion work even without prior <linux/of_fdt.h> inclusion.] Signed-off-by: Steven J. Hill <sjhill@mips.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/4809/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: drivers: remove __dev* attributes.Greg Kroah-Hartman2013-01-032-8/+6
| | | | | | | | | | | | | | CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* MIPS: Add core files for MIPS SEAD-3 development platform.Steven J. Hill2012-09-1324-0/+2268
More information about the SEAD-3 platform can be found at <http://www.mips.com/products/development-kits/mips-sead-3/> on MTI's site. Currently, the M14K family of cores is what the SEAD-3 is utilised with. Signed-off-by: Douglas Leung <douglas@mips.com> Signed-off-by: Chris Dearman <chris@mips.com> Signed-off-by: Steven J. Hill <sjhill@mips.com>
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