- 11 Nov, 2015 40 commits
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John Crispin authored
Some pcie cards have problems after a reboot without this. Signed-off-by:
John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11446/Signed-off-by:
Ralf Baechle <ralf@linux-mips.org>
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John Crispin authored
Setting pm_power_off is apprently wrong and makes drivers such as gpio-poweroff not work. Signed-off-by:
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John Crispin authored
The code currently panics if PCI is enabled but the SoC has no PCI bus. This check is superfluous as the driver only loads if enabled in the devicetree. Signed-off-by:
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John Crispin authored
The current code adds the delta twice, which is obviously wrong. Signed-off-by:
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John Crispin authored
MT7688 has several uarts that can be used for console. There are several boards in the wild, that use ttyS1 or ttyS2. This patch applies a simply autodetection routine to figure out which ttyS the bootloader used as console. The uarts come up in 6 bit mode by default. The bootloader will have set 8 bit mode on the console. Find that 8bit tty and use it. Signed-off-by:
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John Crispin authored
If the USB HCD is running and the cpu is scaled too low, then the USB stops working. Increase the idle speed of the core to fix this if the kernel is built with USB support. The "magic" values are taken from the Ralink SDK Kernel. Signed-off-by:
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John Crispin authored
This makes detection a lot easier for audio, wifi, ... drivers. Signed-off-by:
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John Crispin authored
MT7688 is similar tot he MT7628 but has a different wifi radio. Signed-off-by:
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Jaedon Shin authored
Add AHCI and PHY device nodes to MIPS-based BCM7362 set-top box platform. Signed-off-by:
Jaedon Shin <jaedon.shin@gmail.com> Cc: Brian Norris <computersforpeace@gmail.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Tejun Heo <tj@kernel.org> Cc: Kishon Vijay Abraham I <kishon@ti.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Dragan Stancevic <dragan.stancevic@gmail.com> Cc: linux-ide@vger.kernel.org Cc: Linux-MIPS <linux-mips@linux-mips.org> Cc: devicetree@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/11379/Signed-off-by:
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Jaedon Shin authored
Add AHCI and PHY device nodes to MIPS-based BCM7346 set-top box platform. Signed-off-by:
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Jaedon Shin authored
Add AHCI and PHY device nodes to MIPS-based BCM7425 set-top box platform. Signed-off-by:
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Jaedon Shin authored
Add I2C device nodes to BMIPS based BCM7362 platform. Signed-off-by:
Florian Fainelli <f.fainelli@gmail.com> Cc: Wolfram Sang <wsa@the-dreams.de> Cc: Kamal Dasu <kdasu.kdev@gmail.com> Cc: linux-i2c@vger.kernel.org Cc: devicetree@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11336/Signed-off-by:
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Jaedon Shin authored
Add I2C device nodes to BMIPS based BCM7360 platform. Signed-off-by:
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Jaedon Shin authored
Add I2C device nodes to BMIPS based BCM7358 platform. Signed-off-by:
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Jaedon Shin authored
Add I2C device nodes to BMIPS based BCM7346 platform. Signed-off-by:
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Hauke Mehrtens authored
request_mem_region() returns a pointer and not an integer with an error value. A check for "< 0" on a pointer will cause problems, replace it with not null checks instead. This was found with sparse. Signed-off-by:
Hauke Mehrtens <hauke.mehrtens@lantiq.com> Acked-by:
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Hauke Mehrtens authored
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Hauke Mehrtens authored
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Hauke Mehrtens authored
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Hauke Mehrtens authored
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Hauke Mehrtens authored
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Hauke Mehrtens authored
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Hauke Mehrtens authored
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Hauke Mehrtens authored
This adds the PUM bits for USB and SDIO devices Signed-off-by:
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Hauke Mehrtens authored
When the SoC starts up most of the devices should be deactivated by the PMU, they should be activated when they get used by their drivers. Some devices should not get deactivate at startup like the serial, register them in a special way. Signed-off-by:
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Hauke Mehrtens authored
This add detection of some clocks on the ar10 and grx390. Signed-off-by:
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Hauke Mehrtens authored
The vendor code uses different clock values for this clock. Signed-off-by:
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Hauke Mehrtens authored
This register is also used on other SoCs. Signed-off-by:
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Hauke Mehrtens authored
This adds support for setting the PMU register on the AR10 and GRX390. Signed-off-by:
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Hauke Mehrtens authored
The PMU register are accessed in a non atomic way and they could be accessed by different threads simultaneously, which could cause problems this patch adds locking around the PMU registers. In addition we now also wait till the PMU is actually deactivated. [ralf@linux-mips.org: Fix spelling mistake in commit message as noticed by Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>.] Signed-off-by:
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Rafał Miłecki authored
This drops another symbol dependency between setup.c and sprom.c which will allow us to make SPROM code a separated module (and share it with ARM). Patch tested on Linksys WRT300N V1. Signed-off-by:
Rafał Miłecki <zajec5@gmail.com> Cc: Hauke Mehrtens <hauke@hauke-m.de> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11360/Signed-off-by:
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Rafał Miłecki authored
There are still few left: 1) Most of them about lines over 80 chars (increased readability exception) 2) Wrong parsing of preprocessor macros Signed-off-by:
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Rafał Miłecki authored
To support (extract) SPROM on Broadcom ARM devices we should separate SPROM code and make it a separated module. We won't want to export bcm47xx_fill_sprom symbol so we should support SoC SPROM in the standard fallback function and then modify ssb to use it. Signed-off-by:
Hauke Mehrtens <hauke@hauke-m.de> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11355/Signed-off-by:
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Hauke Mehrtens authored
This adds a basic implementation of clk_round_rate() The clk_round_rate() function is called by multiple drivers and subsystems now and the lantiq clk driver is supposed to export this, but doesn't do so, this causes linking problems like this one: ERROR: "clk_round_rate" [drivers/media/v4l2-core/videodev.ko] undefined! Signed-off-by:
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Aaro Koskinen authored
Add LATENCYTOP support for MIPS. Tested on OCTEON. Signed-off-by:
Aaro Koskinen <aaro.koskinen@nokia.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11353/Signed-off-by:
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Julia Lawall authored
for_each_child_of_node performs an of_node_get on each iteration, so no of_node_get is needed on breaking out of the loop when the device_node structure is saved in another variable. A simplified semantic match that finds this problem is as follows (http://coccinelle.lip6.fr): // <smpl> @@ expression root; local idexpression child; @@ for_each_child_of_node(root, child) { ... * of_node_get(child) ... break; } // </smpl> Signed-off-by:
Julia Lawall <Julia.Lawall@lip6.fr> Cc: kernel-janitors@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: Russell King - ARM Linux <linux@arm.linux.org.uk> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Jason Cooper <jason@lakedaemon.net> Patchwork: https://patchwork.linux-mips.org/patch/11357/Signed-off-by:
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Alex Smith authored
Add user-mode implementations of gettimeofday() and clock_gettime() to the VDSO. This is currently usable with 2 clocksources: the CP0 count register, which is accessible to user-mode via RDHWR on R2 and later cores, or the MIPS Global Interrupt Controller (GIC) timer, which provides a "user-mode visible" section containing a mirror of its counter registers. This section must be mapped into user memory, which is done below the VDSO data page. When a supported clocksource is not in use, the VDSO functions will return -ENOSYS, which causes libc to fall back on the standard syscall path. When support for neither of these clocksources is compiled into the kernel at all, the VDSO still provides clock_gettime(), as the coarse realtime/monotonic clocks can still be implemented. However, gettimeofday() is not provided in this case as nothing can be done without a suitable clocksource. This causes the symbol lookup to fail in libc and it will then always use the standard syscall path. This patch includes a workaround for a bug in QEMU which results in RDHWR on the CP0 count register always returning a constant (incorrect) value. A fix for this has been submitted, and the workaround can be removed after the fix has been in stable releases for a reasonable amount of time. A simple performance test which calls gettimeofday() 1000 times in a loop and calculates the average execution time gives the following results on a Malta + I6400 (running at 20MHz): - Syscall: ~31000 ns - VDSO (GIC): ~15000 ns - VDSO (CP0): ~9500 ns [markos.chandras@imgtec.com: - Minor code re-arrangements in order for mappings to be made in the order they appear to the process' address space. - Move do_{monotonic, realtime} outside of the MIPS_CLOCK_VSYSCALL ifdef - Use gic_get_usm_range so we can do the GIC mapping in the arch/mips/kernel/vdso instead of the GIC irqchip driver] Signed-off-by:Alex Smith <alex.smith@imgtec.com> Signed-off-by:
Markos Chandras <markos.chandras@imgtec.com> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/11338/Signed-off-by:
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Alex Smith authored
The GIC provides a "user-mode visible" section containing a mirror of the counter registers which can be mapped into user memory. This will be used by the VDSO time function implementations, so provide a function to map it in. When the GIC is not enabled in Kconfig a dummy inline version of this function is provided, along with "#define gic_present 0", so that we don't have to litter the VDSO code with ifdefs. [markos.chandras@imgtec.com: - Move mapping code to arch/mips/kernel/vdso.c and use a resource type to get the GIC usermode information - Avoid renaming function arguments and use __gic_base_addr to hold the base GIC address prior to ioremap.] [ralf@linux-mips.org: Fix up gic_get_usm_range() to compile and make inline again.] Signed-off-by:Marc Zyngier <marc.zyngier@arm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Alex Smith <alex.smith@imgtec.com> Cc: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/11281/Signed-off-by:
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Alex Smith authored
Add an initial implementation of a proper (i.e. an ELF shared library) VDSO. With this commit it does not export any symbols, it only replaces the current signal return trampoline page. A later commit will add user implementations of gettimeofday()/clock_gettime(). To support both new toolchains and old ones which don't generate ABI flags section, we define its content manually and then use a tool (genvdso) to patch up the section to have the correct name and type. genvdso also extracts symbol offsets ({,rt_}sigreturn) needed by the kernel, and generates a C file containing a "struct mips_vdso_image" containing both the VDSO data and these offsets. This C file is compiled into the kernel. On 64-bit kernels we require a different VDSO for each supported ABI, so we may build up to 3 different VDSOs. The VDSO to use is selected by the mips_abi structure. A kernel/user shared data page is created and mapped below the VDSO image. This is currently empty, but will be used by the user time function implementations which are added later. [markos.chandras@imgtec.com: - Add more comments - Move abi detection in genvdso.h since it's the get_symbol function that needs it. - Add an R6 specific way to calculate the base address of VDSO in order to avoid the branch instruction which affects performance. - Do not patch .gnu.attributes since it's not needed for dynamic linking. - Simplify Makefile a little bit. - checkpatch fixes - Restrict VDSO support for binutils < 2.25 for pre-R6 - Include atomic64.h for O32 variant on MIPS64] Signed-off-by: -
Bartlomiej Zolnierkiewicz authored
IDE subsystem has been deprecated since 2009 and the majority (if not all) of Linux distributions have switched to use libata for ATA support exclusively. However there are still some users (mostly old or/and embedded non-x86 systems) that have not converted from using IDE subsystem to libata PATA drivers. This doesn't seem to be good thing in the long-term for Linux as while there is less and less PATA systems left in use: * testing efforts are divided between two subsystems * having duplicate drivers for same hardware confuses users This patch converts mpc30x_defconfig to use libata PATA drivers. PS This platform still uses "ide0=base[,ctl[,irq]]" hack in its defconfig. The hack itself has been removed in 2008 and this platform should be converted to using PATA platform host driver (pata_platform) instead. Signed-off-by:
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Cc: linux-mips@linux-mips.org Cc: linux-ide@vger.kernel.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/11141/Signed-off-by:
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