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2015-04-02MIPS: BCM47xx: Move filling most of SPROM to the generic functionRafał Miłecki1-401/+204
This simplifies code a lot by dropping many per-revision-group functions. There are still some paths left that use uncommon NVRAM read helpers or fill arrays. They will need to be handled in separated patch. I've tested this (by printing SPROM content) for regressions on: 1) BCM4704 (SPROM revision 2) 2) BCM4706 (SPROM revision 8 plus 11 & 9 on extra WiFi cards) The only difference is not reading board_type from SPROM rev 11 which is unsupported and treated as rev 1. This change for rev 1 is expected. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Cc: linux-mips@linux-mips.org Cc: Hauke Mehrtens <hauke@hauke-m.de> Cc: Jonas Gorski <jonas.gorski@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/9660/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-02MIPS: BCM47xx: Add generic function filling SPROM entriesRafał Miłecki1-3/+29
Handling many SPROM revisions became messy, we have tons of functions specific to various revision groups which are quite hard to track. For years there is yet another revision 11 asking for support, but adding it in current the form would make things even worse. To resolve this problem let's add new function with table-like entries that will contain revision bitmask for every SPROM variable. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Cc: linux-mips@linux-mips.org Cc: Hauke Mehrtens <hauke@hauke-m.de> Cc: Jonas Gorski <jonas.gorski@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/9659/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-02MIPS: Reduce kernel image size for !CONFIG_DEBUG_ZBOOTWu Zhangjin2-1/+7
!CONFIG_DEBUG_ZBOOT doesn't need puts() and puthex(), remove them and the corrospindig strings for !CONFIG_DEBUG_ZBOOT, as a result, it saves about 1280 bytes. [ralf@linux-mips.org: Resolved reject.] Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Cc: Wu Zhangjin <wuzhangjin@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/1898/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-02MIPS: BCM47xx: Devices database update for 4.1 (or 4.2?)Rafał Miłecki4-0/+36
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Cc: linux-mips@linux-mips.org Cc: Hauke Mehrtens <hauke@hauke-m.de> Patchwork: https://patchwork.linux-mips.org/patch/9656/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-02MIPS: BCM47xx: Keep ID entries for non-standard devices togetherRafał Miłecki1-28/+20
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Cc: linux-mips@linux-mips.org Cc: Hauke Mehrtens <hauke@hauke-m.de> Patchwork: https://patchwork.linux-mips.org/patch/9655/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-02MIPS: AR7: Replace mac address parsingDaniel Walter1-4/+1
Replace sscanf() with mac_pton(). [ralf@linux-mips.org: Resolved conflict.] Signed-off-by: Daniel Walter <dwalter@google.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/7151/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-02MIPS: Lasat: Remove unused function from sysctl code.Rickard Strandqvist1-15/+0
Remove the function proc_dolasatint() that is not used anywhere. This was partially found by using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/8868/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-02MIPS: BCM47XX: Don't try guessing NVRAM size on MTD partitionRafał Miłecki1-22/+14
When dealing with whole flash content (bcm47xx_nvram_init_from_mem) we need to find NVRAM start trying various partition sizes (nvram_sizes). This is not needed when using MTD as we have direct partition access. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Cc: linux-mips@linux-mips.org Cc: Hauke Mehrtens <hauke@hauke-m.de> Patchwork: https://patchwork.linux-mips.org/patch/9652/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-02MIPS: BCM47XX: Increase NVRAM buffer size to 64 KiBRafał Miłecki1-1/+1
For years Broadcom devices use 64 KiB NVRAM partition size and some of them indeed have it filled in more than 50%. This change allows reading whole NVRAM e.g. on Netgear WNDR4500 and Netgear R8000. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Cc: linux-mips@linux-mips.org Cc: Hauke Mehrtens <hauke@hauke-m.de> Patchwork: https://patchwork.linux-mips.org/patch/9651/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-02MIPS: BCM47XX: Include io.h directly and fix brace indentRafał Miłecki1-1/+2
We use IO functions like readl & ioremap_nocache, so include linux/io.h Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Cc: linux-mips@linux-mips.org Cc: Hauke Mehrtens <hauke@hauke-m.de> Patchwork: https://patchwork.linux-mips.org/patch/9650/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-02MIPS: c-r4k.c: Fix the 74K D-cache alias erratum workaroundMaciej W. Rozycki1-8/+15
Fix the 74K D-cache alias erratum workaround so that it actually works. Our current code sets MIPS_CACHE_VTAG for the D-cache, but that flag only has any effect for the I-cache. Additionally MIPS_CACHE_PINDEX is set for the D-cache if CP0.Config7.AR is also set for an affected processor, leading to confusing information in the bootstrap log (the flag isn't used beyond that). So delete the setting of MIPS_CACHE_VTAG and rely on MIPS_CACHE_ALIASES, set in a common place, removing I-cache coherency issues seen in GDB testing with software breakpoints, gdbserver and ptrace(2), on affected systems. While at it add a little piece of explanation of what CP0.Config6.SYND is so that people do not have to chase documentation. Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/8507/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-02MIPS: Remove prototype for copy_user_pageGuenter Roeck1-2/+0
MIPS architecture code does not provide copy_user_page, so it should not provide a prototype for it either. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/9266/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: Loongson-3: Add chipset ACPI platform driverHuacai Chen4-0/+161
This add south-bridge (SB700/SB710/SB800 chipset) ACPI platform driver for Loongson-3. This will be used by EC (Embedded Controller, used by laptops) driver and STR (Suspend To RAM). [ralf@linux-mips.org: Fix build error if !CONFIG_CPU_LOONGSON3. Build doesn't like it if no obj-* variable is defined at all in a Makefile. Obviously this has not been tested on other platforms.] Signed-off-by: Huacai Chen <chenhc@lemote.com> Cc: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/9619/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: Loongson-3: Add CPU Hwmon platform driverHuacai Chen7-0/+251
This add CPU Hwmon (temperature sensor) platform driver for Loongson-3. Signed-off-by: Huacai Chen <chenhc@lemote.com> Cc: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/9617/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: perf: Add hardware perf events support for Loongson-3Huacai Chen2-1/+72
This patch enable hardware performance counter support for Loongson-3's perf events. Signed-off-by: Huacai Chen <chenhc@lemote.com> Cc: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/9618/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: PCI: Add a hook for IORESOURCE_BUS in pci_controller/bridge_controllerJoshua Kinard3-1/+7
On SGI Origin 2k/Onyx2 and SGI Octane systems, there can exist multiple PCI buses attached to the Xtalk bus. The current code will stop counting PCI buses after it finds the first one. If one installs the optional PCI cardcage ("shoebox") into these systems, because of the order of the Xtalk widgets, the current PCI code will find the cardcage first, and fail to detect the BaseIO PCI devices, which are on a higher Xtalk widget ID. This patch adds the hooks needed for resolving this issue in the IP27 PCI code (in a later patch). Verified on both an SGI Onyx2 and an SGI Octane. Signed-off-by: Joshua Kinard <kumba@gentoo.org> Cc: Linux MIPS List <linux-mips@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/9074/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: Use bool function return values of true/false not 1/0Joe Perches1-1/+1
Use the normal return values for bool functions Signed-off-by: Joe Perches <joe@perches.com> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9640/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: Octeon: Fix to IP checksum offloading in Little EndianPaul Martin1-1/+1
When hardware checksum generation is switched on the checksum generation was only being signalled to the hardware correctly in Big Endian mode. Signed-off-by: Paul Martin <paul.martin@codethink.co.uk> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9634/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: Octeon: Make octeon-md5 driver endian-agnosticPaul Martin1-4/+4
The octeon crypto co-processor expects values to be big endian. Wrap the data transfers with cpu_to_be64() and be64_to_cpu() transformations. This passes for all the MD5 test vectors in crypto/testmgr.h Signed-off-by: Paul Martin <paul.martin@codethink.co.uk> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9631/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: Octeon: Set up ethernet hardware for little endianPaul Martin2-0/+13
Signed-off-by: Paul Martin <paul.martin@codethink.co.uk> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9635/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: Octeon: Reverse the order of register accesses to the FAUPaul Martin1-0/+22
64 bit access is unaffected but for 32 bit access, swap high and low words. Similarly for 16 bit access, reverse the order of the four possible words, and for 8 bit access reverse the order of byte accesses. Signed-off-by: Paul Martin <paul.martin@codethink.co.uk> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9630/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: Octeon: Set appropriate endianness in L2C registersPaul Martin1-0/+12
Signed-off-by: Paul Martin <paul.martin@codethink.co.uk> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9629/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: Octeon: Turn hardware bitfields and structures inside out.Paul Martin9-0/+499
Although the proper way to do this for bitfields would be to use the macro that Ralf has provided, this is a little easier to understand as a diff. Signed-off-by: Paul Martin <paul.martin@codethink.co.uk> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9628/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: IP32: ip32-platform is not a module.Ralf Baechle1-5/+0
So let's remove everything that only makes sense for kernel modules. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: Add R16000 detectionJoshua Kinard10-9/+29
This allows the kernel to correctly detect an R16000 MIPS CPU on systems that have those. Otherwise, such systems will detect the CPU as an R14000, due to similarities in the CPU PRId value. Signed-off-by: Joshua Kinard <kumba@gentoo.org> Cc: Linux MIPS List <linux-mips@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/9092/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01CLOCKSOURCE: mips-gic: Allow GIC clock to be specified in device-treeAndrew Bresticker2-1/+14
As an alternative to the "clock-frequency" property, allow the GIC timer operating clock to be specified in the device-tree instead. This is useful on systems which use common clock or where the GIC is not fixed to a particular frequency and is instead, for example, derived from the CPU clock. Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Cc: James Hogan <james.hogan@imgtec.com> 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: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: devicetree@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/9309/
2015-04-01MIPS: csum_partial: Improve instruction parallelism.Chen Jie1-19/+19
Computing sum introduces true data dependency. This patch removes some true data depdendencies, hence increases instruction level parallelism. This patch brings up to 50% csum performance gain on Loongson 3a. One example about how this patch works is in CSUM_BIGCHUNK1: // ** original ** vs ** patch applied ** ADDC(sum, t0) ADDC(t0, t1) ADDC(sum, t1) ADDC(t2, t3) ADDC(sum, t2) ADDC(sum, t0) ADDC(sum, t3) ADDC(sum, t2) In the original implementation, each ADDC(sum, ...) depends on the sum value updated by previous ADDC(as source operand). With this patch applied, the first two ADDC operations are independent, hence can be executed simultaneously if possible. Another example is in the "copy and sum calculating chunk": // ** original ** vs ** patch applied ** STORE(t0, UNIT(0) ... STORE(t0, UNIT(0) ... ADDC(sum, t0) ADDC(t0, t1) STORE(t1, UNIT(1) ... STORE(t1, UNIT(1) ... ADDC(sum, t1) ADDC(sum, t0) STORE(t2, UNIT(2) ... STORE(t2, UNIT(2) ... ADDC(sum, t2) ADDC(t2, t3) STORE(t3, UNIT(3) ... STORE(t3, UNIT(3) ... ADDC(sum, t3) ADDC(sum, t2) With this patch applied, ADDC and the **next next** ADDC are independent. Signed-off-by: chenj <chenj@lemote.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9608/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: BCM47XX: Fix coding style to match kernel standardsRafał Miłecki8-30/+34
[ralf@linux-mips.org: Fixed conflicts.] Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Acked-by: Hauke Mehrtens <hauke@hauke-m.de> Cc: linux-mips@linux-mips.org Cc: Paul Walmsley <paul@pwsan.com> Patchwork: https://patchwork.linux-mips.org/patch/8665/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: OCTEON: add GPIO LED support for DSR-1000NAaro Koskinen2-0/+19
DSR-1000N board has two GPIO LEDs next to USB ports. Add support for them. [ralf@linux-mips.org: Resolved conflict due to the moving of the DTS files into vendor subdirectories.] Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9624/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: Hibernate: Restructure files and functionsHuacai Chen3-5/+13
This patch has no functional changes, it just to keep the assembler code to a minimum. Files and functions naming is borrowed from X86. Signed-off-by: Huacai Chen <chenhc@lemote.com> Cc: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/9616/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: Hibernate: flush TLB entries earlierHuacai Chen1-1/+2
We found that TLB mismatch not only happens after kernel resume, but also happens during snapshot restore. So move it to the beginning of swsusp_arch_suspend(). Signed-off-by: Huacai Chen <chenhc@lemote.com> Cc: <stable@vger.kernel.org> Cc: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Cc: stable@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/9621/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: SEAD3: Nuke remaining I2C bits.Ralf Baechle3-66/+1
With no I2C driver available, keeping the platform device registration makes no sense just as keeping the code to instantiage the I2C devices. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: SEAD3: Nuke I2C driver that never was wired up in Makefile.Ralf Baechle1-397/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: SEAD3: Use symbolic addresses from sead-addr.h in I2C driver.Ralf Baechle1-3/+6
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: SEAD3: Use symbolic addresses from sead-addr.h in LED driver.Ralf Baechle1-2/+5
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: SEAD3: New header file sead3-addr.h with hardware addresses.Ralf Baechle1-0/+83
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: SEAD3: Get rid of DRVNAME from LED driver for readability.Ralf Baechle1-3/+1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: SEAD3: Get rid of useless pr_debug calls in the LED driver.Ralf Baechle1-2/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: SEAD3: Convert I2C driver to module_platform_driver.Ralf Baechle1-11/+1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: SEAD3: Convert LED driver to module_platform_driver.Ralf Baechle1-12/+1
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: SEAD3: Collect LED platform device registration in a single file.Ralf Baechle2-22/+15
Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Cc: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Bryan Wu <cooloney@gmail.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: linux-leds@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/8203/
2015-04-01MIPS: BMIPS: restrict DTB selection to BMIPS_GENERICFlorian Fainelli1-0/+4
Since we are always sourcing arch/mips/bmips/Kconfig and there is no dependency on BMIPS_GENERIC, we will offer building BMIPS-related DTBs while this is not relevant for the other MIPS platforms. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Cc: linux-mips@linux-mips.org Cc: cernekee@gmail.com Cc: jaedon.shin@gmail.com Patchwork: https://patchwork.linux-mips.org/patch/9603/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: BMIPS: Flush the readahead cache after DMA.Ralf Baechle1-0/+16
BMIPS 3300/435x/438x CPUs have a readahead cache that is separate from the L1/L2. During a DMA operation, accesses adjacent to a DMA buffer may cause parts of the DMA buffer to be prefetched into the RAC. To avoid possible coherency problems, flush the RAC upon DMA completion. Derived from Kevin Cernekee's https://patchwork.linux-mips.org/patch/9602/. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: DMA: Implement platform hook to perform post-DMA cache flushes.Ralf Baechle9-1/+35
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: ath25: Remove unused DMA helper functions.Ralf Baechle1-10/+0
These got merged with the ath25 support after 4e7f72660c39 (MIPS: Remove unnecessary platform dma helper functions) had already removed them for all other platforms. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: Loongson-3: remove deprecated IRQF_DISABLEDMichael Opdenacker1-1/+1
This removes the use of the IRQF_DISABLED flag from arch/mips/loongson/loongson-3/hpet.c It's a NOOP since 2.6.35. Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Cc: chenhc@lemote.com Cc: taohl@lemote.com Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/9609/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: BCM47xx: Move NVRAM header to the include/linux/.Rafał Miłecki12-13/+24
There are two reasons for having this header in the common place: 1) Simplifying drivers that read NVRAM entries. We will be able to safely call bcm47xx_nvram_* functions without #ifdef-s. 2) Getting NVRAM driver out of MIPS arch code. This is needed to support BCM5301X arch which also requires this NVRAM driver. Patch for that will follow once we get is reviewed. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Acked-by: Hauke Mehrtens <hauke@hauke-m.de> Cc: linux-mips@linux-mips.org Cc: Arnd Bergmann <arnd@arndb.de> Cc: Paul Walmsley <paul@pwsan.com> Cc: linux-soc@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/8619/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: Expand __swp_offset() to carry 40 significant bits for 64-bit kernel.David Daney1-5/+5
With CONFIG_MIGRATION, the PFN of the migrating pages is stored in __swp_offset(), so we must have enough bits to store the largest possible PFN. OCTEON NUMA systems have 41 bits of physical address space, so with 4K pages (12-bits), we need at least 29 bits to store the PFN. The current width of 24-bits is too narrow, so expand it all the way out to 40-bits. This leaves the low order 16 bits as zero which does not interfere with any of the PTE bits. Signed-off-by: David Daney <david.daney@cavium.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9315/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: BCM47XX: Use strnchr to avoid reading out of the bufferRafał Miłecki1-2/+4
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Cc: Hauke Mehrtens <hauke@hauke-m.de> Cc: Paul Walmsley <paul@pwsan.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/8662/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: BCM47XX: Use helpers for reading NVRAM contentRafał Miłecki1-5/+2
Also drop some unneeded memset-s. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Cc: Hauke Mehrtens <hauke@hauke-m.de> Cc: Paul Walmsley <paul@pwsan.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/8661/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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