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2017-12-18ARM: 8733/1: hw_breakpoint: Mark variables as __ro_after_initJinbum Park1-5/+5
core_num_brps, core_num_wrps, debug_arch, has_ossr, max_watchpoint_len are setup once while init stage, and never changed after that. so it is good candidate for __ro_after_init. Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Jinbum Park <jinb.park7@gmail.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-12-18ARM: 8732/1: NOMMU: Allow userspace to access background MPU regionVladimir Murzin1-1/+1
Currently, with MPU enabled, we prohibit userspace access to anything except RAM. Benjamin, reported that because of that his userspace application cannot access framebuffer's memory he reserved in device tree. It turns out we have no option other than to allow userspace access memory covered by background region. Reported-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Tested-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-12-18ARM: 8728/1: B15: Register reboot notifier for KEXECFlorian Fainelli1-0/+44
During kexec, we will go through kernel_kexec() -> syscore_suspend() if CONFIG_KEXEC_JUMP is set, if not, down the road we end-up calling kernel_restart_prepare() which invokes reboot notifiers with SYS_RESTART. We register a reboot notifier to make sure that the B15 read-ahead cache is disabled, since it is another level of instruction and data cache, and we want to avoid any potential side effects with booting a new kernel with such a cache still turned on. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-12-18ARM: 8730/1: B15: Add suspend/resume hooksFlorian Fainelli1-0/+48
The Broadcom Brahma-B15 CPU readahead cache registers will be restored to their Power-on-Reset values after a S3 suspend/resume cycles, so we want to restore what we had enabled before. Another thing we want to take care of is disabling the read-ahead cache prior to suspending to avoid any sort of side effect with the spinlock we need to grab to serialize register accesses. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-12-18ARM: 8726/1: B15: Add CPU hotplug awarenessFlorian Fainelli1-0/+91
The Broadcom Brahma-B15 readahead cache needs to be disabled, respectively re-enable during a CPU hotplug. In case we were not to do, CPU hotplug would occasionally fail with random crashes when a given CPU exits the coherency domain while the RAC is still enabled, as it would get stale data from the RAC. In order to avoid adding any specific B15 readahead-cache awareness to arch/arm/mach-bcm/hotplug-brcmstb.c we use a CPU hotplug state machine which allows us to catch CPU hotplug events and disable/flush enable the RAC accordingly. Signed-off-by: Alamy Liu <alamyliu@broadcom.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-12-18ARM: 8729/1: Hook B15 readahead cache functions based on processorFlorian Fainelli2-1/+22
If we detect that we are running on a Broadcom Brahma-B15 CPU, and CONFIG_CACHE_B15_RAC is enabled, make sure that we pick-up the b15_cache_fns function operations. If CONFIG_CACHE_B15_RAC is enabled, but we are not running on a Broadcom Brahma-B15 CPU, we will fallback to calling into the regular v7_cache_fns with no cost. If CONFIG_CACHE_B15_RAC is disabled, there is no cost and we just use the regular v7_cache_fns. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-12-18ARM: 8725/1: Add Broadcom Brahma-B15 readahead cache supportFlorian Fainelli5-0/+200
This patch adds support for the Broadcom Brahma-B15 CPU readahead cache controller. This cache controller sits between the L2 and the memory bus and its purpose is to provide a friendler burst size towards the DDR interface than the native cache line size. The readahead cache is mostly transparent, except for flush_kern_cache_all, which is precisely what we are overriding here. The readahead cache only intercepts reads, and does invalidate on writes (IOW), as such, some data can remain stale in any of its buffers, such that we need to flush it, which is an operation that needs to happen in a particular order: - disable the readahead cache - flush it - call the appropriate cache-v7.S function - re-enable This patch tries to minimize the impact to the cache-v7.S file by only providing a stub in case CONFIG_CACHE_B15_RAC is enabled (default for ARCH_BRCMSTB since it is the current user). Signed-off-by: Alamy Liu <alamyliu@broadcom.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-12-18ARM: 8724/1: v7: allow setting different cache functionsFlorian Fainelli1-2/+2
In preparation for adding support for the Broadcom Brahma-B15 read-ahead cache which requires a different set of cache functions, allow the __v7_proc macro to override the cache_fns settings, and default to v7_cache_fns unless specified otherwise. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-12-18ARM: probes: avoid adding kprobes to sensitive kernel-entry/exit codeRussell King11-45/+47
Avoid adding kprobes to any of the kernel entry/exit or startup assembly code, or code in the identity-mapped region. This code does not conform to the standard C conventions, which means that the expectations of the kprobes code is not forfilled. Placing kprobes at some of these locations results in the kernel trying to return to userspace addresses while retaining the CPU in kernel mode. Tested-by: Naresh Kamboju <naresh.kamboju@linaro.org> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-12-18ARM: 8723/2: always assume the "unified" syntax for assembly codeNicolas Pitre3-82/+8
The GNU assembler has implemented the "unified syntax" parsing since 2005. This "unified" syntax is required when the kernel is built in Thumb2 mode. However the "unified" syntax is a mixed bag of features, including not requiring a `#' prefix with immediate operands. This leads to situations where some code builds just fine in Thumb2 mode and fails to build in ARM mode if that prefix is missing. This behavior discrepancy makes build tests less valuable, forcing both ARM and Thumb2 builds for proper coverage. Let's "fix" this issue by always using the "unified" syntax for both ARM and Thumb2 mode. Given that the documented minimum binutils version that properly builds the kernel is version 2.20 released in 2010, we can assume that any toolchain capable of building the latest kernel is also "unified syntax" capable. Whith this, a bunch of macros used to mask some differences between both syntaxes can be removed, with the side effect of making LTO easier. Suggested-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-12-18ARM: verify size of zImageRussell King1-0/+8
The linker can sometimes add additional sections to the zImage ELF file which results in the zImage binary being larger than expected. This causes appended DT blobs to fail. Verify that the zImage binary is the expected size, and fail the build if this is not the case. We need to include the .data.rel.ro section in the image as the RiscPC build includes font data that contains a small amount of data in this section. Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-12-17bpf: fix net.core.bpf_jit_enable raceAlexei Starovoitov1-1/+1
global bpf_jit_enable variable is tested multiple times in JITs, blinding and verifier core. The malicious root can try to toggle it while loading the programs. This race condition was accounted for and there should be no issues, but it's safer to avoid this race condition. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-12-17Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller55-101/+125
Three sets of overlapping changes, two in the packet scheduler and one in the meson-gxl PHY driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-17ARM: dts: keystone-k2l-clocks: Add missing unit name to clock nodes that ↵Nishanth Menon1-22/+22
have regs Add the control register as the base for the clock nodes which are missing them. This squashes some 22 warnings of the effect when built with W=1. Reported-by: Rob Herring <robh@kernel.org> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2017-12-17ARM: dts: keystone-k2e-clocks: Add missing unit name to clock nodes that ↵Nishanth Menon1-4/+4
have regs Add the control register as the base for the clock nodes which are missing them. This squashes the following warnings of the effect when built with W=1: arch/arm/boot/dts/keystone-k2e-evm.dtb: Warning (unit_address_vs_reg): Node /soc@0/clocks/clkusb1 has a reg or ranges property, but no unit name arch/arm/boot/dts/keystone-k2e-evm.dtb: Warning (unit_address_vs_reg): Node /soc@0/clocks/clkhyperlink0 has a reg or ranges property, but no unit name arch/arm/boot/dts/keystone-k2e-evm.dtb: Warning (unit_address_vs_reg): Node /soc@0/clocks/clkpcie1 has a reg or ranges property, but no unit name arch/arm/boot/dts/keystone-k2e-evm.dtb: Warning (unit_address_vs_reg): Node /soc@0/clocks/clkxge has a reg or ranges property, but no unit name Reported-by: Rob Herring <robh@kernel.org> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2017-12-17ARM: dts: keystone-hk-clocks: Add missing unit name to clock nodes that have ↵Nishanth Menon1-37/+37
regs Add the control register as the base for the clock nodes which are missing them. This squashes some 36 warnings of the effect when built with W=1. Reported-by: Rob Herring <robh@kernel.org> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2017-12-17ARM: dts: keystone-clocks: Add missing unit name to clock nodes that have regsNishanth Menon1-26/+26
Add the control register as the base for the clock nodes which are missing them. This squashes some 78 warnings of the effect when built with W=1. Reported-by: Rob Herring <robh@kernel.org> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2017-12-17ARM: dts: keystone: Add missing unit name to interrupt controllerNishanth Menon1-1/+1
Add base address for GIC as unit address. This also squashes the following warnings when built with W=1: arch/arm/boot/dts/keystone-k2hk-evm.dtb: Warning (unit_address_vs_reg): Node /interrupt-controller has a reg or ranges property, but no unit name arch/arm/boot/dts/keystone-k2l-evm.dtb: Warning (unit_address_vs_reg): Node /interrupt-controller has a reg or ranges property, but no unit name arch/arm/boot/dts/keystone-k2e-evm.dtb: Warning (unit_address_vs_reg): Node /interrupt-controller has a reg or ranges property, but no unit name Reported-by: Rob Herring <robh@kernel.org> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2017-12-17ARM: dts: keystone: Get rid of usage of skeleton.dtsiNishanth Menon1-3/+4
skeleton.dtsi doesn't offer us any real benefits with most of the parameters being overridden. So, just drop the same entirely and introduce appropriate changes for chosen node and memory back to our top level definition. This also squashes the following warnings with W=1: arch/arm/boot/dts/keystone-k2hk-evm.dtb: Warning (unit_address_vs_reg): Node /memory has a reg or ranges property, but no unit name arch/arm/boot/dts/keystone-k2l-evm.dtb: Warning (unit_address_vs_reg): Node /memory has a reg or ranges property, but no unit name arch/arm/boot/dts/keystone-k2e-evm.dtb: Warning (unit_address_vs_reg): Node /memory has a reg or ranges property, but no unit name Reported-by: Rob Herring <robh@kernel.org> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2017-12-17ARM: dts: keystone*: Use a single soc0 instanceNishanth Menon8-37/+37
Provide a soc0 node and reference the same to simplify dts. This also resolves the following warnings when built with W=1: arch/arm/boot/dts/keystone-k2hk-evm.dtb: Warning (unit_address_vs_reg): Node /soc has a reg or ranges property, but no unit name arch/arm/boot/dts/keystone-k2l-evm.dtb: Warning (unit_address_vs_reg): Node /soc has a reg or ranges property, but no unit name arch/arm/boot/dts/keystone-k2e-evm.dtb: Warning (unit_address_vs_reg): Node /soc has a reg or ranges property, but no unit name arch/arm/boot/dts/keystone-k2g-evm.dtb: Warning (unit_address_vs_reg): Node /soc has a reg or ranges property, but no unit name arch/arm/boot/dts/keystone-k2g-ice.dtb: Warning (unit_address_vs_reg): Node /soc has a reg or ranges property, but no unit name NOTE: Though we can reformat files by reducing 1 level of indent due to the use of soc0 phandle, we omit that change to prevent un-necessary churn in code base. Reported-by: Rob Herring <robh@kernel.org> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2017-12-17ARM: dts: keystone*: Standardize license with SPDX tagNishanth Menon17-92/+33
Standardize the licenses with SPDX license tag and standardize TI's copyright statement to be consistently after file description. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2017-12-17arm: mt7: dts: Remove leading 0x and 0s from bindings notationMathieu Malaterre1-1/+1
Improve the DTS files by removing all the leading "0x" and zeros to fix the following dtc warnings: Warning (unit_address_format): Node /XXX unit name should not have leading "0x" and Warning (unit_address_format): Node /XXX unit name should not have leading 0s Converted using the following command: find . -type f \( -iname *.dts -o -iname *.dtsi \) -exec sed -i -e "s/@\([0-9a-fA-FxX\.;:#]+\)\s*{/@\L\1 {/g" -e "s/@0x\(.*\) {/@\1 {/g" -e "s/@0+\(.*\) {/@\1 {/g" {} +^C For simplicity, two sed expressions were used to solve each warnings separately. To make the regex expression more robust a few other issues were resolved, namely setting unit-address to lower case, and adding a whitespace before the the opening curly brace: https://elinux.org/Device_Tree_Linux#Linux_conventions This will solve as a side effect warning: Warning (simple_bus_reg): Node /XXX@<UPPER> simple-bus unit address format error, expected "<lower>" This is a follow up to commit 4c9847b7375a ("dt-bindings: Remove leading 0x from bindings notation") Reported-by: David Daney <ddaney@caviumnetworks.com> Suggested-by: Rob Herring <robh@kernel.org> Signed-off-by: Mathieu Malaterre <malat@debian.org> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2017-12-16ARM: dts: rockchip: add reset property for rk3066a-rayeager emac phyChris Zhong1-0/+1
The ethernet phy of rk3066a-rayeager has a reset pin, it controlled by GPIO1_D6, this pin should be pull down then pull up to reset the phy. Add a reset-gpios property in phy0, make the phy can be reset when emac power on. Signed-off-by: Chris Zhong <zyw@rock-chips.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-12-16ARM: dts: Add basic devicetree for D-Link DNS-313Linus Walleij2-0/+242
This adds a basic device tree for the D-Link DNS-313 NAS enclosure. This device has a thermal sensor and a fan so we add a thermal zone for the chassis in the device tree based on information from the product. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-12-16ARM: dts: Add ethernet PHYs to the a bunch of GeminisLinus Walleij4-0/+57
These Gemini boards have Ethernet PHY on GPIO bit-banged MDIO, clearly defined in the corresponding OpenWRT ethernet patches since ages. Add them in accordance with the OpenWRT patch so we can use them when we add ethernet support. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-12-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds1-2/+2
Pull networking fixes from David Miller: 1) Clamp timeouts to INT_MAX in conntrack, from Jay Elliot. 2) Fix broken UAPI for BPF_PROG_TYPE_PERF_EVENT, from Hendrik Brueckner. 3) Fix locking in ieee80211_sta_tear_down_BA_sessions, from Johannes Berg. 4) Add missing barriers to ptr_ring, from Michael S. Tsirkin. 5) Don't advertise gigabit in sh_eth when not available, from Thomas Petazzoni. 6) Check network namespace when delivering to netlink taps, from Kevin Cernekee. 7) Kill a race in raw_sendmsg(), from Mohamed Ghannam. 8) Use correct address in TCP md5 lookups when replying to an incoming segment, from Christoph Paasch. 9) Add schedule points to BPF map alloc/free, from Eric Dumazet. 10) Don't allow silly mtu values to be used in ipv4/ipv6 multicast, also from Eric Dumazet. 11) Fix SKB leak in tipc, from Jon Maloy. 12) Disable MAC learning on OVS ports of mlxsw, from Yuval Mintz. 13) SKB leak fix in skB_complete_tx_timestamp(), from Willem de Bruijn. 14) Add some new qmi_wwan device IDs, from Daniele Palmas. 15) Fix static key imbalance in ingress qdisc, from Jiri Pirko. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (76 commits) net: qcom/emac: Reduce timeout for mdio read/write net: sched: fix static key imbalance in case of ingress/clsact_init error net: sched: fix clsact init error path ip_gre: fix wrong return value of erspan_rcv net: usb: qmi_wwan: add Telit ME910 PID 0x1101 support pkt_sched: Remove TC_RED_OFFLOADED from uapi net: sched: Move to new offload indication in RED net: sched: Add TCA_HW_OFFLOAD net: aquantia: Increment driver version net: aquantia: Fix typo in ethtool statistics names net: aquantia: Update hw counters on hw init net: aquantia: Improve link state and statistics check interval callback net: aquantia: Fill in multicast counter in ndev stats from hardware net: aquantia: Fill ndev stat couters from hardware net: aquantia: Extend stat counters to 64bit values net: aquantia: Fix hardware DMA stream overload on large MRRS net: aquantia: Fix actual speed capabilities reporting sock: free skb in skb_complete_tx_timestamp on error s390/qeth: update takeover IPs after configuration change s390/qeth: lock IP table while applying takeover changes ...
2017-12-15ARM: dts: am43xx-epos-evm: Add phandle for the backlight for the panelPeter Ujfalusi1-1/+3
With the backlight phandle the driver can manage the backlight on/off in sync with the panel enable/disable. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-12-15ARM: dts: am437x-sk-evm: Add phandle for the backlight for the panelPeter Ujfalusi1-1/+3
With the backlight phandle the driver can manage the backlight on/off in sync with the panel enable/disable. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-12-15ARM: dts: am437x-gp-evm: Add phandle for the backlight for the panelPeter Ujfalusi1-1/+3
With the backlight phandle the driver can manage the backlight on/off in sync with the panel enable/disable. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-12-15ARM: dts: am3/am4/dra7/omap: Remove leading 0x and 0s from bindings notationMathieu Malaterre8-23/+23
Improve the DTS files by removing all the leading "0x" and zeros to fix the following dtc warnings: Warning (unit_address_format): Node /XXX unit name should not have leading "0x" and Warning (unit_address_format): Node /XXX unit name should not have leading 0s Converted using the following command: $ find . -type f \( -iname *.dts -o -iname *.dtsi \) -exec \ sed -i -e "s/@\([0-9a-fA-FxX\.;:#]+\)\s*{/@\L\1 {/g" \ -e "s/@0x\(.*\) {/@\1 {/g" -e "s/@0+\(.*\) {/@\1 {/g" {} +^C For simplicity, two sed expressions were used to solve each warnings separately. To make the regex expression more robust a few other issues were resolved, namely setting unit-address to lower case, and adding a whitespace before the the opening curly brace: https://elinux.org/Device_Tree_Linux#Linux_conventions This will solve as a side effect warning: Warning (simple_bus_reg): Node /XXX@<UPPER> simple-bus unit address format error, expected "<lower>" This is a follow up to commit 4c9847b7375a ("dt-bindings: Remove leading 0x from bindings notation") Reported-by: David Daney <ddaney@caviumnetworks.com> Suggested-by: Rob Herring <robh@kernel.org> Signed-off-by: Mathieu Malaterre <malat@debian.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-12-15ARM: dts: armada-38x: Add NAND RB pinctrl informationSean Nyekjaer1-0/+5
Add pin control information for the NAND flash interface. Signed-off-by: Sean Nyekjaer <sean.nyekjaer@prevas.dk> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2017-12-15ARM: dts: sun7i: Enable HDMI on pcDuino3 NanoTuomas Tynkkynen1-0/+25
The board has a regular-sized HDMI connector, so enable the display the pipeline and HDMI output for it. Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-12-15ARM: dts: sun8i: a83t: Add I2C device nodes and pinmux settingsChen-Yu Tsai1-0/+55
The A83T has 3 I2C controllers under the standard bus. There is one more in the R_ block section. The pin functions for the 3 controllers are on PH 0~6. I2C2 can also be used on pins PE14 and PE15, but these pins can also mux the CSI (camera sensor interface) controller's embedded I2C controller. The latter seems to be preferred in the reference designs for I2C camera sensor access, freeing I2C2 for other uses. This patch adds device nodes for the three standard I2C controllers, as well as pinmux settings for the PH pins. For I2C0 and I2C1, since they only have one possible setting, just set them by default. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-12-15ARM: dts: sun8i: a83t: Add I2S controller device nodesChen-Yu Tsai1-0/+47
The A83T has 3 I2S controllers. The first is multiplexed with the TDM controller. The pins are generally connected to the codec side of the AXP81x PMIC/codec/RTC chip. The second is free for other uses. The third only supports output, and is connected internally to the HDMI controller for HDMI audio output. This patch adds device nodes for the controllers, and a default pinmux setting for the second controller. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-12-14ARM: exynos_defconfig: Enable CONFIG_EXYNOS_IOMMUShuah Khan1-0/+1
EXYNOS_IOMMU is disabled in exynos_defconfig since it was known to cause boot failures on Exynos Chromebooks. The recommendation was for IOMMU to be enabled manually on systems as needed. A recent exynos_drm change added a warning message when EXYNOS_IOMMU is disabled. It is necessary to enable it to avoid the warning messages. A few initial tests have shown that enabling EXYNOS_IOMMU might be safe on Exynos Chrome-books. Due to some other changes in the order of operations during boot process, power domains are initialized very early and because of the temporary lack of devices (which are not yet added to the system), are turned off. This practically stops FIMD for scanning framebuffer very early during boot, before IOMMU gets initialized and "solves" the issue, which was the reason to disable Exynos IOMMU by default on Exynos Snow Chromebooks. Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com> Acked-by: Marek Szyprowski <m.szyprowski@samsung.com> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> [krzk: Extend message with Marek Szyprowski's explanation] Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2017-12-14ARM: dts: exynos: Add nodes for True Random Number GeneratorŁukasz Stelmach4-0/+20
Add nodes for the True Random Number Generator found in Samsung Exynos 5250+ SoCs. Signed-off-by: Łukasz Stelmach <l.stelmach@samsung.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2017-12-14ARM: OMAP2+: Drop unused legacy data for prcm_reg_id and module_bitTony Lindgren7-486/+1
We are now using clock drivers in driver/clk/ti for enabling and disabling modules and these are all unused. Let's also remove the related unused defines in cm-regbits-24xx.h and cm-regbits-34xx.h. Reported-by: H. Nikolaus Schaller <hns@goldelico.com> Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-12-14arm: dts: mt7623: fix card detection issue on bananapi-r2Sean Wang1-1/+1
Fix that bananapi-r2 booting from SD-card would fail since incorrect polarity is applied to the previous setup with GPIO_ACTIVE_HIGH. Cc: stable@vger.kernel.org Fixes: 0eed8d097612 ("arm: dts: mt7623: Add SD-card and EMMC to bananapi-r2") Signed-off-by: Sean Wang <sean.wang@mediatek.com> Tested-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2017-12-14arm: dts: mt7623: update mmc related nodes with the appropriate fallbackSean Wang1-2/+2
The current mmc related nodes should be falling back to MT2701 as the dt-binding defines and which has more appropriate setup for MT7623. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2017-12-14arm: dts: mt2701: Add reset-cellsMatthias Brugger1-0/+2
The hifsys and ethsys needs the definition of the reset-cells property. Fix this. Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2017-12-14arm: dts: mt7623: Update ethsys bindingMatthias Brugger1-0/+1
The ethsys binding misses the reset-cells, this patch adds this property. Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2017-12-14ARM: ep93xx: ts72xx: Add support for BK3 board - ts72xx derivativeLukasz Majewski4-0/+149
The BK3 board is a derivative of the ts72xx reference design. Signed-off-by: Lukasz Majewski <lukma@denx.de> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
2017-12-14ARM: ep93xx: ts72xx: cosmetic: Add some description to ts72xx codeLukasz Majewski1-0/+9
This patch extends readability of ts72xx.c code. Signed-off-by: Lukasz Majewski <lukma@denx.de> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
2017-12-14ARM: ep93xx: ts72xx: Rewrite ts72xx_register_flash() to accept parametersLukasz Majewski1-12/+8
This commit extend the ts72xx_register_flash() to accept passed parameters, which makes it more reusable. Now it is possible to accept ep93xx flash start address and partitions. Signed-off-by: Lukasz Majewski <lukma@denx.de> Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
2017-12-14ARM: ep93xx: ts72xx: Provide include guards for ts72xx.h fileLukasz Majewski1-0/+4
This commit adds include file guards to ts72xx.h Signed-off-by: Lukasz Majewski <lukma@denx.de> Acked-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
2017-12-13ARM: dts: vf610-zii-dev: use XAUI for DSA link portsRussell King1-2/+2
Use XAUI rather than XGMII for DSA link ports, as this is the interface mode that the switches actually use. XAUI is the 4 lane bus with clock per direction, whereas XGMII is a 32 bit bus with clock. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-12-12ARM: meson: enable MESON_IRQ_GPIO also for MACH_MESON8Martin Blumenstingl1-0/+1
Now that the GPIO interrupt controller also supports the Meson8 SoCs we can enable it via Kconfig. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2017-12-12ARM: dts: meson8: enable the GPIO interrupt controllerMartin Blumenstingl1-0/+5
This enables the GPIO interrupt controller for the Meson8 SoCs. Interrupt support on the GPIOs can be used by the MMC framework to detect when an SD card is inserted/removed or by the input framework to detect button presses. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2017-12-11ARM: dts: exynos: Add DT nodes for PRNG in Exynos5 SoCsŁukasz Stelmach4-0/+20
Add nodes for Pseudo Random Number Generator in dts files describing Exynos5 chips. Signed-off-by: Łukasz Stelmach <l.stelmach@samsung.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2017-12-11ARM: dts: Move move WiFi bindings to logicpd-torpedo-37xx-devkitAdam Ford2-57/+60
The newly added OMAP35xx Torpedo does not have a WiFi option, so this patch moves the WL1283 binding and pin muxing to the logicpd-torpedo-37xx-devkit since it's only applicable on that SOM Signed-off-by: Adam Ford <aford173@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>