summaryrefslogtreecommitdiff
path: root/arch/arm/cpu
AgeCommit message (Collapse)Author
2018-08-10armv8: layerscape: Enable EHCI access for LS1012ARan Wang
Program Central Security Unit (CSU) to grant access to USB 2.0 controller. Signed-off-by: Ran Wang <ran.wang_1@nxp.com> [YS: rewrite commit message] Reviewed-by: York Sun <york.sun@nxp.com>
2018-08-10armv8: ls1046a: setup SEC ICIDs and fix up device treeLaurentiu Tudor
Add support for SEC ICID configuration and apply it for ls1046a. Also add code to make the necessary device tree fixups. Reviewed-by: Horia Geantă <horia.geanta@nxp.com> Reviewed-by: Bharat Bhushan <bharat.bhushan@nxp.com> Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
2018-08-10armv8: ls1046a: setup fman ports ICIDs and device treeLaurentiu Tudor
Add support for ICID setting of fman ports and the required device tree fixups. Reviewed-by: Bharat Bhushan <bharat.bhushan@nxp.com> Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
2018-08-10armv8: ls1046a: add icid setup for qman portalsLaurentiu Tudor
Add support for ICID setting of qman portals and the required device tree fixups. Also fix an endiness issue in portal setup code. Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
2018-08-10armv8: ls1046a: initial icid setup supportLaurentiu Tudor
Add infrastructure for ICID setup and device tree fixup on ARM platforms. This include basic ICID setup for several devices. Reviewed-by: Bharat Bhushan <bharat.bhushan@nxp.com> Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
2018-08-07arm: ls102xa: Fix RGMII phy-connection-type FDT fixupBrendan Shanks
In ft_fixup_enet_phy_connect_type(), use strlen() instead of sizeof() on the pointer result of phy_string_for_interface(). sizeof() was returning the size of the pointer (4 bytes), resulting in the phy-connection-type being set to "rgmi" rather than "rgmii-id". Signed-off-by: Brendan Shanks <brendan.shanks@teradek.com> Cc: York Sun <york.sun@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
2018-08-03armv8: make SPL exception vectors optionalAndre Przywara
Even though the exception vector table is a fundamental part of the ARM architecture, U-Boot mostly does not make real use of it, except when crash dumping. But having it in takes up quite some space, partly due to the architectural alignment requirement of 2KB. Since we don't take special care of that, the compiler adds a more or less random amount of padding space, which increases the image size quite a bit, especially for the SPL. On a typical Allwinner build this is around 1.5KB of padding, plus 1KB for the vector table (mostly padding space again), then some extra code to do the actual handling. This amounts to almost 10% of the maximum image size, which is quite a lot for a pure debugging feature. Add a Kconfig symbol to allow the exception vector table to be left out of the build for the SPL. For now this is "default y" for everyone, but specific defconfigs, platforms or .config files can opt out here at will, to mitigate the code size pressure we see for some SPLs. Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2018-08-03armv8: Reduce exception handling codeAndre Przywara
The arm64 exception handling code is quite big, mostly due to architectural alignment requirements. Each exception entry spans 32 instructions, which sounds generous, but is too small to fit all of the save/branch/restore code in there. So at the moment we use only four instructions, branching into shared save and restore routines. To not leave the space for those remaining 28 instructions wasted, let's split the save and restore routines and stuff them into the gaps. This saves about 250 bytes of code, which is helpful for those tight SPLs. Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2018-07-30Merge tag 'signed-efi-next' of git://github.com/agraf/u-bootTom Rini
Patch queue for efi - 2018-07-25 Highlights this time: - Many small fixes to improve spec compatibility (found by SCT) - Almost enough to run with sandbox target - GetTime() improvements - Enable EFI_LOADER and HYP entry on ARMv7 with NONSEC=y
2018-07-30Kconfig: Sort bool, default, select and imply optionsMichal Simek
Another round of sorting Kconfig entries aplhabetically. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Tom Rini <trini@konsulko.com> Acked-by: Alexey Brodkin <abrodkin@synopsys.com> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
2018-07-27Merge git://git.denx.de/u-boot-fsl-qoriqTom Rini
2018-07-26arm: Prevent redefinition error in fsl-layerscapeJoe Hershberger
The include/phy.h will start including dm.h, which pulls in linux/compat.h after the attempted redefinition in arch/arm/include/asm/armv8/mmu.h, so move this include to allow redefinition. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
2018-07-26armv8: ls1046ardb: Add falcon mode for for QSPI bootYork Sun
A new defconfig is introduced to support SPL boot from QSPI NOR flash. This is to support falcon mode for faster booting into Linux. Signed-off-by: York Sun <york.sun@nxp.com>
2018-07-26armv8: layerscape: spl: Initialize QSPI AHB for QSPI bootYork Sun
To get full access of QSPI space, initialize AHB interface. Signed-off-by: York Sun <york.sun@nxp.com>
2018-07-26armv8: fsl: remove sata supportYuantian Tang
Remove the old implementation in order to enable DM for sata. Signed-off-by: Tang Yuantian <andy.tang@nxp.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: York Sun <york.sun@nxp.com>
2018-07-26armv8: layerscape: Enabled I-cache for SPL bootYork Sun
Enable I-cache for SPL boot to boost performance. Earlier MMU was enabled only for LS2080A and has since been dropped by commit f539c8a4a7a5 ("armv8: ls2080a: Drop early MMU for SPL build"). Signed-off-by: York Sun <york.sun@nxp.com>
2018-07-25efi_loader: Rename sections to allow for implicit dataAlexander Graf
Some times gcc may generate data that is then used within code that may be part of an efi runtime section. That data could be jump tables, constants or strings. In order to make sure we catch these, we need to ensure that gcc emits them into a section that we can relocate together with all the other efi runtime bits. This only works if the -ffunction-sections and -fdata-sections flags are passed and the efi runtime functions are in a section that starts with ".text". Up to now we had all efi runtime bits in sections that did not interfere with the normal section naming scheme, but this forces us to do so. Hence we need to move the efi_loader text/data/rodata sections before the global *(.text*) catch-all section. With this patch in place, we should hopefully have an easier time to extend the efi runtime functionality in the future. Signed-off-by: Alexander Graf <agraf@suse.de> [agraf: Fix x86_64 breakage]
2018-07-25ARM: HYP/non-sec: enable ARMV7_LPAE if HYP mode is supportedMark Kettenis
ARMV7_LPAE is required in order to enable the MMU in HYP mode. And we really want to enable the MMU in HYP mode such that we can enable the the caches. Otherwise U-Boot code (such as the EFI implementation) that runs in HYP mode will run at a snils pace. Signed-off-by: Mark Kettenis <kettenis@openbsd.org> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-07-25ARM: HYP/non-sec: migrate stackMark Kettenis
The current code that switches into HYP mode doesn't bother to set up a stack for HYP mode. This doesn't work for EFI applications as they expect a usable stack. Fix this by migrating the stack pointer from SP_svc to SP_hyp while in Monitor mode. This restores the stack pointer when we drop into HYP mode. Signed-off-by: Mark Kettenis <kettenis@openbsd.org> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-07-23ARM: PSCI: initialize stack pointer on secondary CPUsStefan Agner
A proper stack is required to safely use C code in psci_arch_cpu_entry. Fixes: 486daaa618e1 ("arm: psci: add a weak function psci_arch_cpu_entry") Cc: Patrick Delaunay <patrick.delaunay@st.com> Signed-off-by: Stefan Agner <stefan.agner@toradex.com> Acked-by: Patrick DELAUNAY <Patrick.delaunay@st.com> Tested-by: Patrick DELAUNAY <Patrick.delaunay@st.com>
2018-07-03Merge branch 'master' of git://git.denx.de/u-boot-sunxiTom Rini
2018-07-03arm: timer: sunxi: add Allwinner timer erratum workaroundAndre Przywara
The Allwinner A64 SoCs suffers from an arch timer implementation erratum, where sometimes the lower 11 bits of the counter value erroneously become all 0's or all 1's [1]. This leads to sudden jumps, both forwards and backwards, with the latter one often showing weird behaviour. Port the workaround proposed for Linux to U-Boot and activate it for all A64 boards. This fixes crashes when accessing MMC devices (SD cards), caused by a recent change to actually use the counter value for timeout checks. Fixes: 5ff8e54888e4d26a352453564f7f599d29696dc9 ("sunxi: improve throughput in the sunxi_mmc driver") [1] http://lists.infradead.org/pipermail/linux-arm-kernel/2018-May/576886.html Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> Tested-by: Andreas Färber <afaerber@suse.de> Tested-by: Guillaume Gardet <guillaume.gardet@free.fr>
2018-07-03arm: timer: factor out FSL arch timer erratum workaroundAndre Przywara
At the moment we have the workaround for the Freescale arch timer erratum A-008585 merged into the generic timer_read_counter() routine. Split those two up, so that we can add other errata workaround more easily. Also add an explaining comment on the way. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Tested-by: Jagan Teki <jagan@amarulasolutions.com> Tested-by: Andreas Färber <afaerber@suse.de> Tested-by: Guillaume Gardet <guillaume.gardet@free.fr>
2018-06-29ARM: Introduce ability to enable invalidate of BTB with ICIALLU on ↵Nishanth Menon
Cortex-A15 for CVE-2017-5715 As recommended by Arm in [1], ACTLR[0] (Enable invalidates of BTB) needs to be set[2] for BTB to be invalidated on ICIALLU. This needs to be done unconditionally for Cortex-A15 processors. Provide a config option for platforms to enable this option based on impact analysis for products. NOTE: This patch in itself is NOT the final solution, this requires: a) Implementation of v7_arch_cp15_set_acr on SoCs which may not provide direct access to ACR register. b) Operating Systems such as Linux to provide adequate workaround in the right locations. c) This workaround applies to only the boot processor. It is important to apply workaround as necessary (context-save-restore) around low power context loss OR additional processors as necessary in either firmware support OR elsewhere in OS. [1] https://developer.arm.com/support/security-update [2] http://infocenter.arm.com/help/topic/com.arm.doc.ddi0438c/BABGHIBG.html Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Tony Lindgren <tony@atomide.com> Cc: Robin Murphy <robin.murphy@arm.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Christoffer Dall <christoffer.dall@linaro.org> Cc: Andre Przywara <Andre.Przywara@arm.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Tom Rini <trini@konsulko.com> Cc: Michael Nazzareno Trimarchi <michael@amarulasolutions.com> Signed-off-by: Nishanth Menon <nm@ti.com> Tested-by: Fabio Estevam <fabio.estevam@nxp.com>
2018-06-29ARM: Introduce ability to enable ACR::IBE on Cortex-A8 for CVE-2017-5715Nishanth Menon
As recommended by Arm in [1], IBE[2] has to be enabled unconditionally for BPIALL to be functional on Cortex-A8 processors. Provide a config option for platforms to enable this option based on impact analysis for products. NOTE: This patch in itself is NOT the final solution, this requires: a) Implementation of v7_arch_cp15_set_acr on SoCs which may not provide direct access to ACR register. b) Operating Systems such as Linux to provide adequate workaround in the right locations. c) This workaround applies to only the boot processor. It is important to apply workaround as necessary (context-save-restore) around low power context loss OR additional processors as necessary in either firmware support OR elsewhere in OS. [1] https://developer.arm.com/support/security-update [2] http://infocenter.arm.com/help/topic/com.arm.doc.ddi0344k/Bgbffjhh.html Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Tony Lindgren <tony@atomide.com> Cc: Robin Murphy <robin.murphy@arm.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Christoffer Dall <christoffer.dall@linaro.org> Cc: Andre Przywara <Andre.Przywara@arm.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Tom Rini <trini@konsulko.com> Cc: Michael Nazzareno Trimarchi <michael@amarulasolutions.com> Signed-off-by: Nishanth Menon <nm@ti.com> Tested-by: Fabio Estevam <fabio.estevam@nxp.com>
2018-06-27Merge git://git.denx.de/u-boot-imxTom Rini
2018-06-19common: Fix cpu nr type which is always unsigned typeMichal Simek
cpu_cmd() is reading cpu number via simple_strtoul() which is always unsigned type. Platform code implementations are not expecting that nr can be negative and there is not checking in the code for that too. This patch is using u32 type for cpu number to make sure that platform code get proper value range. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-06-18ARM: mxs: let boards override entire dram parameter tableMans Rullgard
If many values differ from the defaults, overriding the full table is simpler and more space efficient than tweaking it through mxs_adjust_memory_params(). Signed-off-by: Mans Rullgard <mans@mansr.com>
2018-06-15Merge tag 'xilinx-for-v2018.07-rc2' of git://git.denx.de/u-boot-microblazeTom Rini
Xilinx fixes for v2018.07-rc2 Zynq: - Fix missing watchdog header - DT fixes ZynqMP: - emmc configuration split - Enable SPD - Fix PMUFW_INIT_FILE logic - Coverity fixes in SoC code timer - Add timer_get_boot_us mmc: - Fix MMC HS200 tuning command serial: - Fix scrabled chars with OF_LIVE
2018-06-15arm64: zynqmp: Check return value in zynqmp_mmio_rawwrite()Michal Simek
There should be return value check from zynqmp_mmio_read() in zynqmp_mmio_rawwrite() to make sure that errors are propagated properly. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-06-14efi_loader: Convert runtime reset from switch to if statementsAlexander Graf
We currently handle the UEFI runtime reset / power off case handling via a switch statement. Compilers (gcc in my case) may opt to handle these via jump tables which they may conveniently put into .rodata which is not part of the runtime section, so it will be unreachable when executed. Fix this by just converting the switch statement into an if/else statement. It produces smaller code that is faster and also correct because we no longer refer .rodata from efi runtime code. Reported-by: Andreas Färber <aferber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-06-11board: ls1012a: FRWY-LS1012A board supportBhaskar Upadhaya
FRWY-LS1012A belongs to LS1012A family with features 2 1G SGMII PFE MAC, Micro SD, USB 3.0, DDR, QuadSPI, Audio, UART. Signed-off-by: Bhaskar Upadhaya <Bhaskar.Upadhaya@nxp.com> [yorks: rebase and fix SPDX tag] [yorks: fix board/freescale/ls1012afrdm/Kconfig] Reviewed-by: York Sun <york.sun@nxp.com>
2018-06-08board: Kconfig: Re-Arrangement of PPA firmware and header addressesBhaskar Upadhaya
PPA firmware and header address may vary depending upon different boards, configure ppa firmware and header address in board specific Kconfig. Signed-off-by: Vinitha V Pillai <vinitha.pillai@nxp.com> Signed-off-by: Jagdish Gediya <jagdish.gediya@nxp.com> Signed-off-by: Bhaskar Upadhaya <Bhaskar.Upadhaya@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
2018-06-03arm: armv7: allow unaligned memory accessHeinrich Schuchardt
The UEFI spec mandates that unaligned memory access should be enabled if supported by the CPU architecture. This patch implements the function unaligned_access() to reset the aligned access flag in the system control register (SCTLR). It is called when the bootefi command is invoked. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> [agraf: fix SPDX identifier] Signed-off-by: Alexander Graf <agraf@suse.de>
2018-05-31soc: zynqmp: Update required API version to 1.0Rajan Vaja
Existing EEMI version is to as 1.0 (available from xilinx v2018.1 version). Update required API version to match with EEMI API version. New PMUFW version is required for operations with programmable logic. Signed-off-by: Rajan Vaja <rajanv@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-05-31arm64: zynqmp: Get rid of emulation platformsMichal Simek
ZynqMP emulation platforms are no longer tested and supported that's why remove macros and code around. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-05-23arm64: timer: Create timer_get_bootus for bootstage supportMichal Simek
Implement timer_get_boot_us() based on available functions to support bootstage command. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-05-23arm: armv7m: Clean up some thumb / compiler flag optionsTom Rini
- The correct way to build with thumb mode is to select SYS_THUMB_BUILD - We should be setting -march=armv7-m in arch/arm/Makefile not the sub-config.mk file. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-11Merge tag 'xilinx-for-v2018.07' of git://www.denx.de/git/u-boot-microblazeTom Rini
Xilinx changes for v2018.07 microblaze: - Align defconfig zynq: - Rework fpga initialization and cpuinfo handling zynqmp: - Add ZynqMP R5 support - Wire and enable watchdog on zcu100-revC - Setup MMU map for DDR at run time - Show board info based on DT and cleanup IDENT_STRING zynqmp tools: - Add read partition support - Add initial support for Xilinx bif format for boot.bin generation mmc: - Fix get_timer usage on 64bit cpus - Add support for SD3.0 UHS mode nand-zynq: - Add support for 16bit buswidth - Use address cycles from onfi params scsi: - convert ceva sata to UCLASS_AHCI timer: - Add Cadence TTC for ZynqMP r5 watchdog: - Minor cadence driver cleanup
2018-05-11arm64: zynqmp: Setup MMU map for DDR at run timeNitin Jain
This patch fills the MMU map for DDR at run time based on information read from Device Tree or automatically detected from static configuration. The patch is needed because for systems which has for example 1GB of memory but MMU map is 2GB there could be spurious accesses which was seen in past when mapping is not fitting with actual memory installed. Signed-off-by: Nitin Jain <nitin.jain@xilinx.com> Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-05-09armv8/fsl-lsch2: make the workaround for PIN MUX erratum A010539 robustHou Zhiqiang
Mask HRESET_B after cleared the the RCW_SRC, because in the workaround we override the RCW_SRC and if HRESET_B is issued after the override then SoC cannot find valid RCW as the RCW_SRC was overwritten and result in hang. So we need to mask HRESET_B in case user asserts it, and the PORESET_B should be asserted which leads to resampling of cfg_rcw_src pins and loading of correct RCW_SRC. Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
2018-05-09armv8/fsl-lsch2: correct QMAN clockHou Zhiqiang
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
2018-05-09armv8: sec_firmware: Add support for multiple loadablesSumit Garg
Enable support for multiple loadable images in SEC firmware FIT image. Also add example "sec_firmware_ppa.its" file. Signed-off-by: Sumit Garg <sumit.garg@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
2018-05-09armv8: sec_firmware: Remove JR3 from device tree node in all casesRuchika Gupta
JR3 was getting removed from device tree only if random number generation was successful. However, if SEC firmware is present, JR3 should be removed from device tree node irrespective of the random seed generation as SEC firmware reserves it for it's use. Not removing it in case of random number generation failure causes the kernel to crash. Random number generation was being called twice. This is not required. If SEC firmware is running, SIP call can be made to the SEC firmware to get the random number. This call itself would return failure if function is not supported. Duplicate calling of random number generation function has been removed. Signed-off-by: Ruchika Gupta <ruchika.gupta@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
2018-05-09armv8: layerscape: Avoid code duplication for TZASC InstantiationSriram Dash
TZASC controller configurations are similar. Put them in a macro and avoid code duplication. Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com> Signed-off-by: Sriram Dash <sriram.dash@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
2018-05-07arm: v7R: Add support for enabling cachesLokesh Vutla
Cache maintenance procedure is same for v7A and v7R processors. So re-use cache-cp15.c file except for mmu parts. Tested-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2018-05-07arm: v7R: Add support for MPULokesh Vutla
The Memory Protection Unit(MPU) allows to partition memory into regions and set individual protection attributes for each region. In absence of MPU a default map[1] will take effect. Add support for configuring MPU on Cortex-R, by reusing the existing support for Cortex-M processor. [1] http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0460d/I1002400.html Tested-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2018-05-07arm: v7R: Add initial supportMichal Simek
The Cortex-R* processors are a mid-range CPUs for use in deeply-embedded, real-time systems. It implements the ARMv7-R architecture, and includes Thumb-2 technology for optimum code density and processing throughput. Except for MPU(Memory Protection Unit) and few CP15 registers, most of the features are compatible with v7 architecture. So,reuse the same armv7 folder and introduce a new config CPU_V7R in order to differentiate from v7 based platforms. Tested-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Tom Rini <trini@konsulko.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2018-05-07arm: v7: Kconfig: Rename CPU_V7 as CPU_V7ALokesh Vutla
Currently CPU_V7 kconfig symbol supports only ARMv7A architectures under armv7 folder. This led to a misconception of creating separate folders for armv7m and armv7r. There is no reason to create separate folder for other armv7 based architectures when it can co-exist with few Kconfig symbols. As a first step towards a common folder, rename CPU_V7 as CPUV7A. Later separate Kconfig symbols can be added for CPU_V7R and CPU_V7M and can co exist in the same folder. Reviewed-by: Tom Rini <trini@konsulko.com> Tested-by: Michal Simek <michal.simek@xilinx.com> Suggested-by: Alexander Graf <agraf@suse.de> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2018-05-07arm: v7: Update VBAR only if availableLokesh Vutla
Not all ARM V7 based cpus has VBAR for remapping vector base address. So, update VBAR only if it available. Reviewed-by: Tom Rini <trini@konsulko.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>