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2014-01-22MIPS: BCM47XX: add EARLY_PRINTK_8250 supportHauke Mehrtens
The BCM47xx SoCs have a 8250 serial compatible console at address 0x18000300 and an other at 0x18000400. On most devices 0x18000300 is wired to some pins on the board, we should use that. This is the smae for the AI (bcma) and the SB (ssb) bus, this is some offset on the chip common core. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/5889/
2014-01-22MIPS: BCM47XX: Remove CFE supportHauke Mehrtens
bcm47xx only uses the CFE code for early print to a console, but that is also possible with a early print serial 8250 driver. The CFE api init causes hangs somewhere in prom_init_cfe() on some devices like the Buffalo WHR-HP-G54 and the Asus WL-520GU. This was reported in https://dev.openwrt.org/ticket/4061 and https://forum.openwrt.org/viewtopic.php?id=17063 This will remove all the CFE handling code from bcm47xx. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/5888/
2014-01-22MIPS: BCM63XX: drop SYS_HAS_CPU_MIPS32R1Jonas Gorski
All MIPS cores on BCM63XX identify as Broadcom, not MIPS, so no need to support non-broadcom MIPS CPUs. This also ensures that CPU_BMIPS is always selected. Signed-off-by: Jonas Gorski <jogo@openwrt.org> Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6246/
2014-01-22MIPS: BCM63XX: let the individual SoCs select the appropriate CPUsJonas Gorski
Let each supported chip select the appropirate SYS_HAS_CPU_BMIPS* option for its embedded processor, so support will be conditionally included. Signed-off-by: Jonas Gorski <jogo@openwrt.org> Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6250/
2014-01-22MIPS: BMIPS: add a smp ops registration helperJonas Gorski
Add a helper similar to the generic register_XXX_smp_ops() for bmips. Register SMP UP ops in case of BMIPS32/3300. Signed-off-by: Jonas Gorski <jogo@openwrt.org> Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6248/
2014-01-22MIPS: BMIPS: extend BMIPS3300 to include BMIPS32Jonas Gorski
Codewise there is no difference between these two, so it does not make sense to treat them differently. Also chip families having one of these tend to have the other. Signed-off-by: Jonas Gorski <jogo@openwrt.org> Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6247/
2014-01-22MIPS: BMIPS: select CPU_HAS_PREFETCHJonas Gorski
As they are MIPS32 CPUs they do support the prefetch opcode. Signed-off-by: Jonas Gorski <jogo@openwrt.org> Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6243/
2014-01-22MIPS: BMIPS: select CPU_SUPPORTS_HIGHMEMJonas Gorski
All BMIPS CPUs support HIGHMEM, so it should be selected by CPU_BMIPS. Signed-off-by: Jonas Gorski <jogo@openwrt.org> Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6242/
2014-01-22MIPS: BMIPS: merge CPU options into one optionJonas Gorski
Instead of treating each flavour as an exclusive CPU to select, make BMIPS the only option and let SYS_HAS_CPU_BMIPS* decide for which flavours to include support. Run tested on BMIPS3300 and BMIPS4350, only build tested for BMIPS4380 and BMIPS5000. Signed-off-by: Jonas Gorski <jogo@openwrt.org> Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6240/
2014-01-13MIPS: Support for 64-bit FP with O32 binariesPaul Burton
CPUs implementing MIPS32 R2 may include a 64-bit FPU, just as MIPS64 CPUs do. In order to preserve backwards compatibility a 64-bit FPU will act like a 32-bit FPU (by accessing doubles from the least significant 32 bits of an even-odd pair of FP registers) when the Status.FR bit is zero, again just like a mips64 CPU. The standard O32 ABI is defined expecting a 32-bit FPU, however recent toolchains support use of a 64-bit FPU from an O32 MIPS32 executable. When an ELF executable is built to use a 64-bit FPU a new flag (EF_MIPS_FP64) is set in the ELF header. With this patch the kernel will check the EF_MIPS_FP64 flag when executing an O32 binary, and set Status.FR accordingly. The addition of O32 64-bit FP support lessens the opportunity for optimisation in the FPU emulator, so a CONFIG_MIPS_O32_FP64_SUPPORT Kconfig option is introduced to allow this support to be disabled for those that don't require it. Inspired by an earlier patch by Leonid Yegoshin, but implemented more cleanly & correctly. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Paul Burton <paul.burton@imgtec.com> Patchwork: https://patchwork.linux-mips.org/patch/6154/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-11-15Merge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreamingLinus Torvalds
Pull Kconfig cleanups from Mark Salter: "Remove some unused config options from C6X and clean up PC_PARPORT dependencies. The latter was discussed here: https://lkml.org/lkml/2013/10/8/12" * tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming: c6x: remove unused COMMON_CLKDEV Kconfig parameter Kconfig cleanup (PARPORT_PC dependencies) x86: select ARCH_MIGHT_HAVE_PC_PARPORT unicore32: select ARCH_MIGHT_HAVE_PC_PARPORT sparc: select ARCH_MIGHT_HAVE_PC_PARPORT sh: select ARCH_MIGHT_HAVE_PC_PARPORT powerpc: select ARCH_MIGHT_HAVE_PC_PARPORT parisc: select ARCH_MIGHT_HAVE_PC_PARPORT mips: select ARCH_MIGHT_HAVE_PC_PARPORT microblaze: select ARCH_MIGHT_HAVE_PC_PARPORT m68k: select ARCH_MIGHT_HAVE_PC_PARPORT ia64: select ARCH_MIGHT_HAVE_PC_PARPORT arm: select ARCH_MIGHT_HAVE_PC_PARPORT alpha: select ARCH_MIGHT_HAVE_PC_PARPORT c6x: remove unused parameter in Kconfig
2013-11-15kernel: remove CONFIG_USE_GENERIC_SMP_HELPERSChristoph Hellwig
We've switched over every architecture that supports SMP to it, so remove the new useless config variable. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Jan Kara <jack@suse.cz> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-10-29MIPS: PowerTV: Remove support code.Ralf Baechle
Nobody seems to care about this platform anymore and my attempts to find somebody willing to provide some tlc for PowerTV have failed so far. So let's nuke the bloody thing. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/5910/
2013-10-29MIPS: ftrace: Add support for syscall tracepoints.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-29MIPS: Enable HAVE_ARCH_TRACEHOOK.Ralf Baechle
This enables /proc/<pid>/syscall and the ptrace PTRACE_GETREGSET and PTRACE_SETREGSET operations. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-29MIPS: Cobalt: Move to 8250/16550 serial early printk driverYoichi Yuasa
Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org> Cc: linux-mips <linux-mips@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/948/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-29MIPS: ZBOOT: Support LZ4 compression schemeFlorian Fainelli
Add support for the LZ4 compression scheme in the ZBOOT decompression stub, in order to support it we need to: - select the "lz4" compression tool to compress the vmlinux.bin payload - memcpy() is also required for decompress_unlz4.c so we share the implementation between GZIP, XZ and now LZ4 Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Cc: linux-mips@linux-mips.org Cc: blogic@openwrt.org Cc: james.hogan@imgtec.com Patchwork: https://patchwork.linux-mips.org/patch/5829/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-29MIPS: ZBOOT: Support XZ compression schemeFlorian Fainelli
Add support for the XZ compression scheme in the ZBOOT decompression stub, in order to support it we need to: - select the "xzkern" compression tool to compress the vmlinux.bin payload - link with ashldi3.o for xz_dec_run() to work - memcpy() is also required for decompress_unxz.c so we share the implementation between GZIP and XZ Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Cc: linux-mips@linux-mips.org Cc: blogic@openwrt.org Cc: james.hogan@imgtec.com Patchwork: https://patchwork.linux-mips.org/patch/5818/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-29MIPS: Kconfig: CMP support needs to select SMP as wellMarkos Chandras
The CMP code is only designed to work with SMP configurations. Fixes multiple build problems on certain randconfigs: In file included from arch/mips/kernel/smp-cmp.c:34:0: arch/mips/include/asm/smp.h:28:0: error: "raw_smp_processor_id" redefined [-Werror] In file included from include/linux/sched.h:30:0, from arch/mips/kernel/smp-cmp.c:22: include/linux/smp.h:135:0: note: this is the location of the previous definition In file included from arch/mips/kernel/smp-cmp.c:34:0: arch/mips/include/asm/smp.h:57:20: error: redefinition of 'smp_send_reschedule' In file included from include/linux/sched.h:30:0, from arch/mips/kernel/smp-cmp.c:22: include/linux/smp.h:179:20: note: previous definition of 'smp_send_reschedule' was here In file included from arch/mips/kernel/smp-cmp.c:34:0: arch/mips/include/asm/smp.h: In function 'smp_send_reschedule': arch/mips/include/asm/smp.h:61:8: error: dereferencing pointer to incomplete type [...] Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Markos Chandras <markos.chandras@imgtec.com> Patchwork: https://patchwork.linux-mips.org/patch/5812/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-10-23mips: select ARCH_MIGHT_HAVE_PC_PARPORTMark Salter
Architectures which support CONFIG_PARPORT_PC should select ARCH_MIGHT_HAVE_PC_PARPORT. Signed-off-by: Mark Salter <msalter@redhat.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> CC: linux-mips@linux-mips.org
2013-09-13Remove GENERIC_HARDIRQ config optionMartin Schwidefsky
After the last architecture switched to generic hard irqs the config options HAVE_GENERIC_HARDIRQS & GENERIC_HARDIRQS and the related code for !CONFIG_GENERIC_HARDIRQS can be removed. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-09-12Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds
Pull MIPS updates from Ralf Baechle: "This has been sitting in -next for a while with no objections and all MIPS defconfigs except one are building fine; that one platform got broken by another patch in your tree and I'm going to submit a patch separately. - a handful of fixes that didn't make 3.11 - a few bits of Octeon 3 support with more to come for a later release - platform enhancements for Octeon, ath79, Lantiq, Netlogic and Ralink SOCs - a GPIO driver for the Octeon - some dusting off of the DECstation code - the usual dose of cleanups" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (65 commits) MIPS: DMA: Fix BUG due to smp_processor_id() in preemptible code MIPS: kexec: Fix random crashes while loading crashkernel MIPS: kdump: Skip walking indirection page for crashkernels MIPS: DECstation HRT calibration bug fixes MIPS: Export copy_from_user_page() (needed by lustre) MIPS: Add driver for the built-in PCI controller of the RT3883 SoC MIPS: DMA: For BMIPS5000 cores flush region just like non-coherent R10000 MIPS: ralink: Add support for reset-controller API MIPS: ralink: mt7620: Add cpu-feature-override header MIPS: ralink: mt7620: Add spi clock definition MIPS: ralink: mt7620: Add wdt clock definition MIPS: ralink: mt7620: Improve clock frequency detection MIPS: ralink: mt7620: This SoC has EHCI and OHCI hosts MIPS: ralink: mt7620: Add verbose ram info MIPS: ralink: Probe clocksources from OF MIPS: ralink: Add support for systick timer found on newer ralink SoC MIPS: ralink: Add support for periodic timer irq MIPS: Netlogic: Built-in DTB for XLP2xx SoC boards MIPS: Netlogic: Add support for USB on XLP2xx MIPS: Netlogic: XLP2xx update for I2C controller ...
2013-09-06Merge tag 'soc-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform changes from Olof Johansson: "This branch contains mostly additions and changes to platform enablement and SoC-level drivers. Since there's sometimes a dependency on device-tree changes, there's also a fair amount of those in this branch. Pieces worth mentioning are: - Mbus driver for Marvell platforms, allowing kernel configuration and resource allocation of on-chip peripherals. - Enablement of the mbus infrastructure from Marvell PCI-e drivers. - Preparation of MSI support for Marvell platforms. - Addition of new PCI-e host controller driver for Tegra platforms - Some churn caused by sharing of macro names between i.MX 6Q and 6DL platforms in the device tree sources and header files. - Various suspend/PM updates for Tegra, including LP1 support. - Versatile Express support for MCPM, part of big little support. - Allwinner platform support for A20 and A31 SoCs (dual and quad Cortex-A7) - OMAP2+ support for DRA7, a new Cortex-A15-based SoC. The code that touches other architectures are patches moving MSI arch-specific functions over to weak symbols and removal of ARCH_SUPPORTS_MSI, acked by PCI maintainers" * tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (266 commits) tegra-cpuidle: provide stub when !CONFIG_CPU_IDLE PCI: tegra: replace devm_request_and_ioremap by devm_ioremap_resource ARM: tegra: Drop ARCH_SUPPORTS_MSI and sort list ARM: dts: vf610-twr: enable i2c0 device ARM: dts: i.MX51: Add one more I2C2 pinmux entry ARM: dts: i.MX51: Move pins configuration under "iomuxc" label ARM: dtsi: imx6qdl-sabresd: Add USB OTG vbus pin to pinctrl_hog ARM: dtsi: imx6qdl-sabresd: Add USB host 1 VBUS regulator ARM: dts: imx27-phytec-phycore-som: Enable AUDMUX ARM: dts: i.MX27: Disable AUDMUX in the template ARM: dts: wandboard: Add support for SDIO bcm4329 ARM: i.MX5 clocks: Remove optional clock setup (CKIH1) from i.MX51 template ARM: dts: imx53-qsb: Make USBH1 functional ARM i.MX6Q: dts: Enable I2C1 with EEPROM and PMIC on Phytec phyFLEX-i.MX6 Ouad module ARM i.MX6Q: dts: Enable SPI NOR flash on Phytec phyFLEX-i.MX6 Ouad module ARM: dts: imx6qdl-sabresd: Add touchscreen support ARM: imx: add ocram clock for imx53 ARM: dts: imx: ocram size is different between imx6q and imx6dl ARM: dts: imx27-phytec-phycore-som: Fix regulator settings ARM: dts: i.MX27: Remove clock name from CPU node ...
2013-09-04Merge branch '3.11-fixes' into mips-for-linux-nextRalf Baechle
2013-09-04MIPS: ralink: Add support for reset-controller APIJohn Crispin
Add a helper for reseting different devices on the SoC. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5804/ Patchwork: https://patchwork.linux-mips.org/patch/5797/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03MIPS: ath79: Switch to the clkdev frameworkGabor Juhos
The ath79 code uses static clock devices and provides its own clk_{get,put} implementations. Change the code to use dynamically allocated clock devices and register the clocks within the clkdev framework. Additionally, remove the local clk_{get,put} implementation. The clkdev framework has a common implementation of those. Also move the call of ath79_clock_init() from plat_mem_init() to plat_time_init(). Otherwise it would not be possible to use memory allocation functions from ath79clock_init() becasuse the memory subsystem is not yet initialized when plat_mem_init() runs. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5780/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-09-03Merge tag 'driver-core-3.12-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core patches from Greg KH: "Here's the big driver core pull request for 3.12-rc1. Lots of tiny changes here fixing up the way sysfs attributes are created, to try to make drivers simpler, and fix a whole class race conditions with creations of device attributes after the device was announced to userspace. All the various pieces are acked by the different subsystem maintainers" * tag 'driver-core-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (119 commits) firmware loader: fix pending_fw_head list corruption drivers/base/memory.c: introduce help macro to_memory_block dynamic debug: line queries failing due to uninitialized local variable sysfs: sysfs_create_groups returns a value. debugfs: provide debugfs_create_x64() when disabled rbd: convert bus code to use bus_groups firmware: dcdbas: use binary attribute groups sysfs: add sysfs_create/remove_groups for when SYSFS is not enabled driver core: add #include <linux/sysfs.h> to core files. HID: convert bus code to use dev_groups Input: serio: convert bus code to use drv_groups Input: gameport: convert bus code to use drv_groups driver core: firmware: use __ATTR_RW() driver core: core: use DEVICE_ATTR_RO driver core: bus: use DRIVER_ATTR_WO() driver core: create write-only attribute macros for devices and drivers sysfs: create __ATTR_WO() driver-core: platform: convert bus code to use dev_groups workqueue: convert bus code to use dev_groups MEI: convert bus code to use dev_groups ...
2013-09-03MIPS: Kconfig: Drop obsolete NR_CPUS_DEFAULT_{1,2} optionsMarkos Chandras
The NR_CPUS_DEFAULT_1 introduced as an aid for the QEMU platform in 72ede9b18967e7a8a62a88f164f003193f6d891f "[MIPS] Qemu: Fix Symmetric Uniprocessor support" which was later removed in 302922e5f6901eb6f29c58539631f71b3d9746b8 "[MIPS] Qemu: Remove platform." On certain randconfigs it may happen for NR_CPUS to have an empty value because not all SMP platforms select a suitable NR_CPUS_DEFAULT_* value. We fix this by restoring the range of NR_CPUS to 2..64 and drop the NR_CPUS_DEFAULT_{1,2} symbols. The first one is no longer used and the latter is not needed since NR_CPUS=2 is now the default value. Fixes the following problem on a randconfig: .config:164:warning: symbol value '' invalid for NR_CPUS Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Acked-by: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5747/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-08-26MIPS: OCTEON: Select ARCH_REQUIRE_GPIOLIBDavid Daney
... and create asm/mach-cavium-octeon/gpio.h so that things continue to build. This allows us to use the existing I2C connected GPIO expanders. Signed-off-by: David Daney <david.daney@cavium.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: linux-gpio@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/5632/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-08-22Kconfig: Remove hotplug enable hints in CONFIG_KEXEC help textsGeert Uytterhoeven
commit 40b313608ad4ea655addd2ec6cdd106477ae8e15 ("Finally eradicate CONFIG_HOTPLUG") removed remaining references to CONFIG_HOTPLUG, but missed a few plain English references in the CONFIG_KEXEC help texts. Remove them, too. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-08-21Merge tag 'tegra-for-3.12-soc' of ↵Kevin Hilman
git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/soc From: Stephen Warren: ARM: tegra: core SoC enhancements for 3.12 This branch includes a number of enhancements to core SoC support for Tegra devices. The major new features are: * Adds a new CPU-power-gated cpuidle state for Tegra114. * Adds initial system suspend support for Tegra114, initially supporting just CPU-power-gating during suspend. * Adds "LP1" suspend mode support for all of Tegra20/30/114. This mode both gates CPU power, and places the DRAM into self-refresh mode. * A new DT-driven PCIe driver to Tegra20/30. The driver is also moved from arch/arm/mach-tegra/ to drivers/pci/host/. The PCIe driver work depends on the following tag from Thomas Petazzoni: git://git.infradead.org/linux-mvebu.git mis-3.12.2 ... which is merged into the middle of this pull request. * tag 'tegra-for-3.12-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra: (33 commits) ARM: tegra: disable LP2 cpuidle state if PCIe is enabled MAINTAINERS: Add myself as Tegra PCIe maintainer PCI: tegra: set up PADS_REFCLK_CFG1 PCI: tegra: Add Tegra 30 PCIe support PCI: tegra: Move PCIe driver to drivers/pci/host PCI: msi: add default MSI operations for !HAVE_GENERIC_HARDIRQS platforms ARM: tegra: add LP1 suspend support for Tegra114 ARM: tegra: add LP1 suspend support for Tegra20 ARM: tegra: add LP1 suspend support for Tegra30 ARM: tegra: add common LP1 suspend support clk: tegra114: add LP1 suspend/resume support ARM: tegra: config the polarity of the request of sys clock ARM: tegra: add common resume handling code for LP1 resuming ARM: pci: add ->add_bus() and ->remove_bus() hooks to hw_pci of: pci: add registry of MSI chips PCI: Introduce new MSI chip infrastructure PCI: remove ARCH_SUPPORTS_MSI kconfig option PCI: use weak functions for MSI arch-specific functions ARM: tegra: unify Tegra's Kconfig a bit more ARM: tegra: remove the limitation that Tegra114 can't support suspend ... Signed-off-by: Kevin Hilman <khilman@linaro.org>
2013-08-12PCI: remove ARCH_SUPPORTS_MSI kconfig optionThomas Petazzoni
Now that we have weak versions for each of the PCI MSI architecture functions, we can actually build the MSI support for all platforms, regardless of whether they provide or not architecture-specific versions of those functions. For this reason, the ARCH_SUPPORTS_MSI hidden kconfig boolean becomes useless, and this patch gets rid of it. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Tested-by: Daniel Price <daniel.price@gmail.com> Tested-by: Thierry Reding <thierry.reding@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: linuxppc-dev@lists.ozlabs.org Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: linux390@de.ibm.com Cc: linux-s390@vger.kernel.org Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: x86@kernel.org Cc: Russell King <linux@arm.linux.org.uk> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: linux-ia64@vger.kernel.org Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Cc: David S. Miller <davem@davemloft.net> Cc: sparclinux@vger.kernel.org Cc: Chris Metcalf <cmetcalf@tilera.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-07-30MIPS: Set default CPU type for BCM47XX platformsMarkos Chandras
If neither BCM47XX_SSD nor BCM47XX_BCMA is selected, then no CPU type is available leading to build problems. We fix this problem by using MIPS32r1 as the default CPU type for the BCM47XX platform. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Acked-by: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5618/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-07-19MIPS: KVM: Mark KVM_GUEST (T&E KVM) as BROKEN_ON_SMPJames Hogan
Make KVM_GUEST depend on BROKEN_ON_SMP so that it cannot be enabled with SMP. SMP kernels use ll/sc instructions for an atomic section in the tlb fill handler, with a tlbp instruction contained in the middle. This cannot be emulated with trap & emulate KVM because the tlbp instruction traps and the eret to return to the guest code clears the LLbit which makes the sc instruction always fail. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Sanjay Lal <sanjayl@kymasys.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: David Daney <david.daney@cavium.com> Cc: linux-mips@linux-mips.org Cc: kvm@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/5588/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-07-13Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds
Pull MIPS updates from Ralf Baechle: "MIPS updates: - All the things that didn't make 3.10. - Removes the Windriver PPMC platform. Nobody will miss it. - Remove a workaround from kernel/irq/irqdomain.c which was there exclusivly for MIPS. Patch by Grant Likely. - More small improvments for the SEAD 3 platform - Improvments on the BMIPS / SMP support for the BCM63xx series. - Various cleanups of dead leftovers. - Platform support for the Cavium Octeon-based EdgeRouter Lite. Two large KVM patchsets didn't make it for this pull request because their respective authors are vacationing" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (124 commits) MIPS: Kconfig: Add missing MODULES dependency to VPE_LOADER MIPS: BCM63xx: CLK: Add dummy clk_{set,round}_rate() functions MIPS: SEAD3: Disable L2 cache on SEAD-3. MIPS: BCM63xx: Enable second core SMP on BCM6328 if available MIPS: BCM63xx: Add SMP support to prom.c MIPS: define write{b,w,l,q}_relaxed MIPS: Expose missing pci_io{map,unmap} declarations MIPS: Malta: Update GCMP detection. Revert "MIPS: make CAC_ADDR and UNCAC_ADDR account for PHYS_OFFSET" MIPS: APSP: Remove <asm/kspd.h> SSB: Kconfig: Amend SSB_EMBEDDED dependencies MIPS: microMIPS: Fix improper definition of ISA exception bit. MIPS: Don't try to decode microMIPS branch instructions where they cannot exist. MIPS: Declare emulate_load_store_microMIPS as a static function. MIPS: Fix typos and cleanup comment MIPS: Cleanup indentation and whitespace MIPS: BMIPS: support booting from physical CPU other than 0 MIPS: Only set cpu_has_mmips if SYS_SUPPORTS_MICROMIPS MIPS: GIC: Fix gic_set_affinity infinite loop MIPS: Don't save/restore OCTEON wide multiplier state on syscalls. ...
2013-07-12Merge branch '3.10-fixes' into mips-for-linux-nextRalf Baechle
This that should have been fixed but weren't, way to much, intrusive and late.
2013-07-04Merge branch 'kconfig-diet' from Dave HansenLinus Torvalds
Merge Kconfig menu diet patches from Dave Hansen: "I think the "Kernel Hacking" menu has gotten a bit out of hand. It is over 120 lines long on my system with everything enabled and options are scattered around it haphazardly. http://sr71.net/~dave/linux/kconfig-horror.png Let's try to introduce some sanity. This set takes that 120 lines down to 55 and makes it vastly easier to find some things. It's a start. This set stands on its own, but there is plenty of room for follow-up patches. The arch-specific debug options still end up getting stuck in the top-level "kernel hacking" menu. OPTIMIZE_INLINING, for instance, could obviously go in to the "compiler options" menu, but the fact that it is defined in arch/ in a separate Kconfig file keeps it on its own for the moment. The Signed-off-by's in here look funky. I changed employers while working on this set, so I have signoffs from both email addresses" * emailed patches from Dave Hansen <dave@sr71.net>: hang and lockup detection menu kconfig: consolidate printk options group locking debugging options consolidate compilation option configs consolidate runtime testing configs order memory debugging Kconfig options consolidate per-arch stack overflow debugging options
2013-07-04consolidate per-arch stack overflow debugging optionsDave Hansen
Original posting: http://lkml.kernel.org/r/20121214184202.F54094D9@kernel.stglabs.ibm.com Several architectures have similar stack debugging config options. They all pretty much do the same thing, some with slightly differing help text. This patch changes the architectures to instead enable a Kconfig boolean, and then use that boolean in the generic Kconfig.debug to present the actual menu option. This removes a bunch of duplication and adds consistency across arches. Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com> Reviewed-by: H. Peter Anvin <hpa@zytor.com> Reviewed-by: James Hogan <james.hogan@imgtec.com> Acked-by: Chris Metcalf <cmetcalf@tilera.com> [for tile] Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-02MIPS: Kconfig: Add missing MODULES dependency to VPE_LOADERMarkos Chandras
The vpe.c code uses the 'struct module' which is only available if CONFIG_MODULES is selected. Also fixes the following build problem on a lantiq allmodconfig: In file included from arch/mips/kernel/vpe.c:41:0: include/linux/moduleloader.h: In function 'apply_relocate': include/linux/moduleloader.h:48:63: error: dereferencing pointer to incomplete type include/linux/moduleloader.h: In function 'apply_relocate_add': include/linux/moduleloader.h:70:63: error: dereferencing pointer to incomplete type Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Reviewed-by: James Hogan <james.hogan@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5562/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-07-01MIPS: SEAD3: Disable L2 cache on SEAD-3.Steven J. Hill
The cores used on the SEAD-3 platform do not have L2 caches, so this option should not be turned on. Originally fixed on public 'linux-mti-3.8' release branch. Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5559/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-07-01MIPS: Expose missing pci_io{map,unmap} declarationsMarkos Chandras
The GENERIC_PCI_IOMAP does not depend on CONFIG_PCI so move it to the CONFIG_MIPS symbol so it's always selected for MIPS. This fixes the missing pci_iomap declaration for MIPS. Moreover, the pci_iounmap function was not defined in the io.h header file if the CONFIG_PCI symbol is not set, but it should since MIPS is not using CONFIG_GENERIC_IOMAP. This fixes the following problem on a allyesconfig: drivers/net/ethernet/3com/3c59x.c:1031:2: error: implicit declaration of function 'pci_iomap' [-Werror=implicit-function-declaration] drivers/net/ethernet/3com/3c59x.c:1044:3: error: implicit declaration of function 'pci_iounmap' [-Werror=implicit-function-declaration] Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Acked-by: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5478/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-07-01MIPS: BCM63XX: select BOOT_RAWFlorian Fainelli
Enabling BOOT_RAW is mandatory to get a binary image (objcopy from ELF to binary) to work. This does not affect the ELF kernels which are used by CFE on BCM63XX DSL platforms, but is going to be necessary to support BCM63XX on Cable Modem chips such as BCM3368. Signed-off-by: Florian Fainelli <florian@openwrt.org> Cc: linux-mips@linux-mips.org Cc: cernekee@gmail.com Cc: jogo@openwrt.org Patchwork: https://patchwork.linux-mips.org/patch/5500/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-07-01MIPS: Delete Wind River ppmc eval board support.Paul Gortmaker
This board has been EOL for many years now; lets not burden people doing build coverage and other tree wide work with working on essentially dead files. [ralf@linux-mips.org: Also remove arch/mips/include/asm/mach-wrppmc/war.h.] Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: linux-mips@linux-mips.org Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Patchwork: http://patchwork.linux-mips.org/patch/5503/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-07-01MIPS: BCM63XX: select BMIPS4350 and default to 2 CPUs for supported SoCsJonas Gorski
All BCM63XX SoCs starting with BCM6358 have a BMIPS4350 instead of a BMIPS3300, so select it unless support for any of the older SoCs is selected. All BMIPS4350 have only two CPUs, so select the appropriate default. Signed-off-by: Jonas Gorski <jogo@openwrt.org> Cc: linux-mips@linux-mips.org Cc: John Crispin <blogic@openwrt.org> Cc: Maxime Bizon <mbizon@freebox.fr> Cc: Florian Fainelli <florian@openwrt.org> Cc: Kevin Cernekee <cernekee@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/5355/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-07-01MIPS: initial stack protector supportGregory Fong
Implements basic stack protector support based on ARM version in c743f38013aeff58ef6252601e397b5ba281c633 , with Kconfig option, constant canary value set at boot time, and script to check if compiler actually supports stack protector. Tested by creating a kernel module that writes past end of char[]. Signed-off-by: Gregory Fong <gregory.0xf0@gmail.com> Cc: linux-mips@linux-mips.org Cc: Filippo Arcidiacono <filippo.arcidiacono@st.com> Cc: Carmelo Amoroso <carmelo.amoroso@st.com> Patchwork: https://patchwork.linux-mips.org/patch/5448/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-21MIPS: powertv: Drop SYS_HAS_EARLY_PRINTKMarkos Chandras
PowerTV does not provide a prom_putchar function needed for early printk so remove this symbol for this platform. Fixes the following problem when EARLY_PRINTK is enabled for powertv: arch/mips/kernel/early_printk.c:24: undefined reference to `prom_putchar' arch/mips/kernel/early_printk.c:23: undefined reference to `prom_putchar' Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Acked-by: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5477/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Netlogic: Support compressed kernelJayachandran C
Add SYS_SUPPORTS_ZBOOT and SYS_SUPPORTS_ZBOOT_UART16550 config options for XLR and XLP. Update boot/compressed/uart-16550.c to add UART port for XLR and XLP. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5417/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Kconfig: Remove extranous help keyword.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Kconfig: Move ZONE_DMA to a more appropriate place.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-06-13MIPS: Kconfig: Remove extranous help keyword.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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