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2019-04-23apalis-tk1: mmc: enable HS200 mode for eMMCOleksandr Suvorov
Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com> Related to: #40373
2019-04-23apalis-tk1: dts: add regulators for eMMCOleksandr Suvorov
Set vddio_sdmmc, vqmmc, vmmc regulators for eMMC. Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com> Related to: #40373
2019-02-06apalis-tk1: dts: we're now using level for can irqApalis-TK1_LXDE-Image_2.8b6.184-20190401Dominik Sliwa
Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com>
2019-02-06board-apalis-tk1: do not use OTG when using 3.0Dominik Sliwa
If the OTG port is configured for USB 3.0 operation using usb_port_owner_info kernel cmd line argument operate in host mode only. Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com>
2018-11-29Tegra: fix potential one byte overflows when calling strncpy()Rolf Eike Beer
Causes build failures with gcc 8. Signed-off-by: Rolf Eike Beer <eb@emlix.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-11-29apalis-tk1: lvds: fix dts and allow setting lane4 drive strengthDominik Sliwa
Previously, lvds-drive-strength was located in a wrong node and there was no control of the 5th lane. Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-11-29apalis-tk1: proper usb lane and resource assigmentDominik Sliwa
Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-11-29apalis-tk1: atmel-mxt-ts reset gpio name changeDominik Sliwa
Align with mainline Atmel MXT driver. Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-09-27ARM: fix put_user() for gcc-8Arnd Bergmann
Building kernels before linux-4.7 with gcc-8 results in many build failures when gcc triggers a check that was meant to catch broken compilers: /tmp/ccCGMQmS.s:648: Error: .err encountered According to the discussion in the gcc bugzilla, a local "register asm()" variable is still supposed to be the correct way to force an inline assembly to use a particular register, but marking it 'const' lets the compiler do optimizations that break that, i.e the compiler is free to treat the variable as either 'const' or 'register' in that case. Upstream commit 9f73bd8bb445 ("ARM: uaccess: remove put_user() code duplication") fixed this problem in linux-4.8 as part of a larger change, but seems a little too big to be backported to 4.4. Let's take the simplest fix and change only the one broken line in the same way as newer kernels. Suggested-by: Bernd Edlinger <bernd.edlinger@hotmail.de> Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85745 Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86673 Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (cherry picked from commit 0ca85fc310e8c24cba10ed241a0188795e177683) /tmp/ccmcXtfu.s: Assembler messages: /tmp/ccmcXtfu.s:1441: Error: .err encountered Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com> Conflicts: arch/arm/include/asm/uaccess.h
2018-09-27apalis-tk1: lvds: allow setting LVDS drive strength in dtDominik Sliwa
Hardcoded value was used before. This allows setting drive strength values in the devicetree. Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-09-27apalis-tk1: build SELinux supportDominik Sliwa
Build SELinux support in kernel, but keep it disabled. Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-06-21apalis-tk1: support 2nd ov5640 with sccb_id of 0x3d on csi_3Marcel Ziswiler
This commit adds support for the 2nd CSI Camera Module 5MP OV5640 with SCCB_ID of 0x3d connected to Apalis TK1 Mezzanine V2.0A on X7 aka CSI_3_CSI-2/4x. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Acked-by: Dominik Sliwa <dominik.sliwa@toradex.com>
2018-06-21apalis-tk1: fix issues when using eDP display-outDominik Sliwa
Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-06-21apalis-tk1: Enable USB 3.0 host on USBO1Dominik Sliwa
Port retains dual function capability. Peripheral mode supports only USB 2.0. Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-06-21apalis-tk1: align i2c3 configurationsDominik Sliwa
Now device trees for revision <1.2 and 1.2 use the same rcv-sel on i2c3 (in NVIDIA's documentation known as i2c4). Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-06-21apalis-tk1: disable crypto devMarcel Ziswiler
Disable Tegra SE crypto dev as done in NVIDIA L4T R21.7. Similar to commit a7e55a39cdd1 ("CRYPTO: disable crypto dev fot t124"). Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Acked-by: Dominik Sliwa <dominik.sliwa@toradex.com>
2018-06-21arm: fix build issue caused by spectre/meltdown patchMarcel Ziswiler
Currently building fails as follows due to an erroneous + sign in front of an #endif in arch/arm/mm/fsr-3level.c: In file included from /home/user/linux-3.10/arch/arm/mm/fault.c:554:0: /home/user/linux-3.10/arch/arm/mm/fsr-3level.c:68:0: error: unterminated #else make[2]: *** [/home/user/linux-3.10/scripts/Makefile.build:308: arch/arm/mm/fault.o] Error 1 This fixes commit de3110548b04 ("arm: Invalidate BTB on prefetch abort outside of user mapping on Cortex A8, A9, A12 and A17"). Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Acked-by: Max Krummenacher <max.krummenacher@toradex.com>
2018-06-21Merge tag 'tegra-l4t-r21.7' into toradex_tk1_l4t_r21.7-nextMarcel Ziswiler
Merge NVIDIA's latest Linux for Tegra aka L4T R21.7 Linux kernel changes from git://nv-tegra.nvidia.com/linux-3.10.git commit: e78bb38b883c42edf81766a1d557aed74458e08f Conflicts involved missing 24-bit LVDS support and a single whitespace aka tab difference in drivers/video/tegra/dc/sor.c. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-04-28arm: Add BTB invalidation on switch_mm for Cortex-A9, A12 and A17Marc Zyngier
** Not yet queued for inclusion in mainline ** In order to avoid aliasing attacks against the branch predictor, some implementations require to invalidate the BTB when switching from one user context to another. For this, we reuse the existing implementation for Cortex-A8, and apply it to A9, A12 and A17. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Change-Id: Ibbd99465a5dcf5eda6a29dd23a55f9b21b280e65 Reviewed-on: https://git-master.nvidia.com/r/1704129 GVS: Gerrit_Virtual_Submit Reviewed-by: Bibek Basu <bbasu@nvidia.com> Tested-by: Bibek Basu <bbasu@nvidia.com>
2018-04-28arm: Invalidate icache on prefetch abort outside of user mapping on Cortex-A15Marc Zyngier
** Not yet queued for inclusion in mainline ** In order to prevent aliasing attacks on the branch predictor, invalidate the icache on Cortex-A15, which has the side effect of invalidating the BTB. This requires ACTLR[0] to be set to 1 (secure operation). Change-Id: I4bb8e3ec05853d739bebd8fb3c61657e252808c0 Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Jeetesh Burman <jburman@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1698400 GVS: Gerrit_Virtual_Submit Reviewed-by: Bibek Basu <bbasu@nvidia.com> Tested-by: Bibek Basu <bbasu@nvidia.com>
2018-04-28arm: Invalidate BTB on prefetch abort outside of user mapping on Cortex A8, ↵Marc Zyngier
A9, A12 and A17 ** Not yet queued for inclusion in mainline ** In order to prevent aliasing attacks on the branch predictor, invalidate the BTB on CPUs that are known to be affected when taking a prefetch abort on a address that is outside of a user task limit. __ACCESS_CP15 and __ACCESS_CP15_64 added from below link: https://patchwork.kernel.org/patch/9234399/ Change-Id: Ib8c9807f5e787437e66b83ea0305d75cce4bbbdf Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Jeetesh Burman <jburman@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1698399 GVS: Gerrit_Virtual_Submit Reviewed-by: Bibek Basu <bbasu@nvidia.com> Tested-by: Bibek Basu <bbasu@nvidia.com>
2018-04-28arm: Add icache invalidation on switch_mm for Cortex-A15Marc Zyngier
** Not yet queued for inclusion in mainline ** In order to avoid aliasing attacks against the branch predictor, Cortex-A15 require to invalidate the BTB when switching from one user context to another. The only way to do so on this CPU is to perform an ICIALLU, having set ACTLR[0] to 1 from secure mode. Change-Id: Ib0083803d75a4399b8225193349a4b490d1776a1 Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Jeetesh Burman <jburman@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1698398 GVS: Gerrit_Virtual_Submit Reviewed-by: Bibek Basu <bbasu@nvidia.com> Tested-by: Bibek Basu <bbasu@nvidia.com>
2018-04-03arm64: define speculation barrierJames Huang
The instruction sequency "dsb sy" followed by "isb" functions as a speculation barrier, which prevents the instructions after that from being speculatively executed. bug 2039126 Change-Id: Ie3b7b873a12002617e60510ed8759bdaa7cd7057 Signed-off-by: Bo Yan <byan@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1618222 Signed-off-by: James Huang <jamehuang@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1650093 Signed-off-by: Jeetesh Burman <jburman@nvidia.com> (cherry picked from commit f125c60045878513902cac4a084fde9a516eb3e2) Reviewed-on: https://git-master.nvidia.com/r/1660782 GVS: Gerrit_Virtual_Submit Reviewed-by: Bibek Basu <bbasu@nvidia.com>
2018-04-03arm: define speculation barrierJeetesh Burman
The instruction sequency "dsb sy" followed by "isb" functions as a speculation barrier, which prevents the instructions after that from being speculatively executed. bug 2039126 Change-Id: I898aab771ff82b26b08214a06814d2e6e78969a7 Signed-off-by: Bo Yan <byan@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1618222 Signed-off-by: James Huang <jamehuang@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1650093 Signed-off-by: Jeetesh Burman <jburman@nvidia.com> (cherry picked from commit f125c60045878513902cac4a084fde9a516eb3e2) Reviewed-on: https://git-master.nvidia.com/r/1660771 GVS: Gerrit_Virtual_Submit Reviewed-by: Bibek Basu <bbasu@nvidia.com>
2018-03-28apalis-tk1: handle backlight in the device treeApalis-TK1_LXDE-Image_2.8b2.97-20180331toradex_tk1_l4t_r21.6Dominik Sliwa
Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-03-28Revert "video: backlight: pwm_bl: add pwm_gpio"Dominik Sliwa
This reverts commit 95730406a0e3bbd7f862718782924a3c367845a1.
2018-03-28apalis-tk1: add atmel mxt-ts to device-treesDominik Sliwa
Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-03-28apalis-tk1: add atmel mxt to defconfigDominik Sliwa
Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-03-28apalis-tk1: remove platform dc initializationDominik Sliwa
DC initialization now relays only on device-tree entry. Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-03-28apalis-tk1:lvds: add option to select 24-bit lvds modeDominik Sliwa
Add ability to switch between 24.1 and 24.0 lvds modes. Mode description can be found in "Using 24-bpp LVDS Panels with Intel® Mobile Chipsets for Embedded Applications". Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-03-28apalis-tk1: move display configuration to device-treeDominik Sliwa
Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-03-28can: mfd: apalis-tk1: v1.1 frequency adjustments and various fixesDominik Sliwa
Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-03-28mfd: apalis-tk1-k20: single transaction register readDominik Sliwa
This change also modifies SPI clock for ezPort mode. Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-03-28can: mfd: apalis-tk1-k20:increased clock speed, zero copyDominik Sliwa
Increased SPI speed for transfers and peripheral speed. Switch to cleaning IRQ flags on read, instead of separate write. Switched to zero-copy on SPI reads. Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2018-02-06CRYPTO: disable crypto dev fot t124Konduri Praveen
disabling tegra SE crypto dev for t124 platform. Bug 1927682 Change-Id: I16a24009e8f528df4be40ec65aa621b4ac779e41 Signed-off-by: Konduri Praveen <kondurip@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1582395 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Bibek Basu <bbasu@nvidia.com>
2018-01-19mm: larger stack guard gap, between vmasSri Krishna chowdary
commit 1be7107fbe18eed3e319a6c3e83c78254b693acb upstream. Stack guard page is a useful feature to reduce a risk of stack smashing into a different mapping. We have been using a single page gap which is sufficient to prevent having stack adjacent to a different mapping. But this seems to be insufficient in the light of the stack usage in userspace. E.g. glibc uses as large as 64kB alloca() in many commonly used functions. Others use constructs liks gid_t buffer[NGROUPS_MAX] which is 256kB or stack strings with MAX_ARG_STRLEN. This will become especially dangerous for suid binaries and the default no limit for the stack size limit because those applications can be tricked to consume a large portion of the stack and a single glibc call could jump over the guard page. These attacks are not theoretical, unfortunatelly. Make those attacks less probable by increasing the stack guard gap to 1MB (on systems with 4k pages; but make it depend on the page size because systems with larger base pages might cap stack allocations in the PAGE_SIZE units) which should cover larger alloca() and VLA stack allocations. It is obviously not a full fix because the problem is somehow inherent, but it should reduce attack space a lot. One could argue that the gap size should be configurable from userspace, but that can be done later when somebody finds that the new 1MB is wrong for some special case applications. For now, add a kernel command line option (stack_guard_gap) to specify the stack gap size (in page units). Implementation wise, first delete all the old code for stack guard page: because although we could get away with accounting one extra page in a stack vma, accounting a larger gap can break userspace - case in point, a program run with "ulimit -S -v 20000" failed when the 1MB gap was counted for RLIMIT_AS; similar problems could come with RLIMIT_MLOCK and strict non-overcommit mode. Instead of keeping gap inside the stack vma, maintain the stack guard gap as a gap between vmas: using vm_start_gap() in place of vm_start (or vm_end_gap() in place of vm_end if VM_GROWSUP) in just those few places which need to respect the gap - mainly arch_get_unmapped_area(), and and the vma tree's subtree_gap support for that. Bug 1946430 Change-Id: I9a66aabc34b687996fb971e01bb0ef30a3d4de7d Original-patch-by: Oleg Nesterov <oleg@redhat.com> Original-patch-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Hugh Dickins <hughd@google.com> Acked-by: Michal Hocko <mhocko@suse.com> Tested-by: Helge Deller <deller@gmx.de> # parisc Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> [wt: backport to 4.11: adjust context] [wt: backport to 4.9: adjust context ; kernel doc was not in admin-guide] [wt: backport to 4.4: adjust context ; drop ppc hugetlb_radix changes] Signed-off-by: Willy Tarreau <w@1wt.eu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sri Krishna chowdary <schowdary@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1509390 GVS: Gerrit_Virtual_Submit Tested-by: Bibek Basu <bbasu@nvidia.com> Reviewed-by: Bibek Basu <bbasu@nvidia.com>
2017-12-21apalis-tk1_defconfig: enable user debugStefan Agner
Let the kernel print some debug messages when a user program crashes due to an exception. Signed-off-by: Stefan Agner <stefan.agner@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2017-11-29mfd: apalis-tk1: 0.11 fw supportDominik Sliwa
Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2017-11-29Merge tag 'tegra-l4t-r21.6' into toradex_tk1_l4t_r21.6Marcel Ziswiler
Merge NVIDIA's latest Linux for Tegra aka L4T R21.6 Linux kernel changes from git://nv-tegra.nvidia.com/linux-3.10.git commit: b271e8fa67a6d9c4600274a25636cfe00fdd1b68 Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Acked-by: Dominik Sliwa <dominik.sliwa@toradex.com>
2017-10-17ARM: tegra: apalis-tk1: use high vil/vih receivers for ddcDominik Sliwa
DDC/EDID detection was failing on Apalis TK1 V1.2A on Ixora. Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2017-10-05ARM: tegra: apalis-tk1: annotate and fix gpio configurationMarcel Ziswiler
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Acked-by: Dominik Sliwa <dominik.sliwa@toradex.com>
2017-10-05ARM: tegra: apalis-tk1: move hdmi ddc config to dtDominik Sliwa
We moved HDMI DDC configuration to the device-tree. If DDC config is missing from the device-tree we default to v1.2 config. Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2017-10-03ARM: tegra: apalis-tk1: support v1.2 hardware revisionMarcel Ziswiler
Support the V1.2 hardware revision with the following pin muxing changes: Ddc_scl_pv4 and ddc_sda_pv5 previously used as Apalis GPIO3 and GPIO4 are now used as DDC pins. Gen2_i2c_scl_pt5 and gen2_i2c_sda_pt6 previously used as DDC pins are now used as USB power enable signals. Usb_vbus_en0_pn4 and usb_vbus_en1_pn5 previously used as USB power enable signals are now used as GPIO3 and GPIO4. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Acked-by: Dominik Sliwa <dominik.sliwa@toradex.com>
2017-10-03ARM: dts: tegra124: update model and compatibility nodesMarcel Ziswiler
Update model and compatibility nodes to be more in-line with mainline. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Acked-by: Dominik Sliwa <dominik.sliwa@toradex.com>
2017-09-27ARM: tegra: Select appropriate DMA options for LPAEPaul Kocialkowski
This automatically selects options for zone DMA and 64 bit DMA addresses when LPAE is enabled on ARM Tegra platforms. These options are required for proper operation with LPAE enabled. The ZONE_DMA option is required to ensure that drivers that allocate DMA memory get buffers from the first 4 GiB. This is necessary because a lot of the controllers only support addressing 32 bits. As for ARCH_DMA_ADDR_T_64BIT, there are situations where devices that do support addresses of more than 32 bits (such as the display controller or the GPU) can run without translating addresses through an IOMMU on a device with more than 4 GiB of system memory. Note that both of these options are stop-gap solutions required only until the IOMMU can be properly integrated with the DMA mapping API and drivers use that properly and consistently. Signed-off-by: Paul Kocialkowski <contact@paulk.fr> [treding@nvidia.com: specify rationale for options] Signed-off-by: Thierry Reding <treding@nvidia.com> (backported from commit 6aa26c5d66595494e810c791602d87a572c78808)
2017-09-20tegra11_soctherm.c: fix compilation with gcc 7Max Krummenacher
With gcc 7 the following compile time error occurs: | arch/arm/mach-tegra/tegra11_soctherm.c:2978:40: error: the omitted middle operand in ?: will always be 'true', suggest explicit middle operand [-Werror=parentheses] | s->sensor_enable = s->sensor_enable ?: therm->zone_enable; | ^ Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2017-09-20powergate-t12x.c: fix compilation with gcc 7Max Krummenacher
With gcc 7 the following compile time error occurs: | arch/arm/mach-tegra/powergate-t12x.c:814:10: error: statement will never be executed [-Werror=switch-unreachable] | return true; | ^~~~ Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
2017-09-20apalis-tk1: activate pwm pin muxing for pwm3Marcel Ziswiler
Activate PWM pin muxing for Apalis PWM3. Note that the same PWM3 is already active on pu6 being Apalis BKL1_PWM as well. Therefore exporting that one for raw sysfs access will fail and one has to revert to using the pwm backlight. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Acked-by: Dominik Sliwa <dominik.sliwa@toradex.com>
2017-09-20apalis-tk1: enable large physical address extension lpaeMarcel Ziswiler
Enable support for the Large Physical Address Extension aka LPAE. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Acked-by: Dominik Sliwa <dominik.sliwa@toradex.com>
2017-09-20apalis-tk1: fix pcie reset for reliable gigabit ethernet operationMarcel Ziswiler
It turns out that the current PCIe reset implementation is not quite working reliably due to some Intel i210 errata. Fix this by making sure the i210's +V3.3_ETH rail is properly disabled during its reset sequence. Also further improve on the bringing up the PCIe switch as found on the Apalis Evaluation board. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Acked-by: Dominik Sliwa <dominik.sliwa@toradex.com>
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