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The current API is outdated as it requires a devicetree pointer.
Move these functions to use the ofnode API and update this globally. Add
some tests while we are here.
Correct the call in exynos_dsim_config_parse_dt() which is obviously
wrong.
Signed-off-by: Simon Glass <sjg@chromium.org>
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vexpress_ca9x4 is seemingly the only board except for qemu_arm which
is able to run U-Boot correctly, using the `-M vexpress-a9` option to
QEMU. Building for qemu_arm and running qemu-system-arm with the `-M
virt` argument has a number of downsides, most importantly that it
only supports virtio storage drivers. This significantly reduces its
usefulness in testing memory card and Flash solutions, especially when
the tested images are from a third party source.
So therefore we reintroduce the vexpress_ca9x4 board in this commit,
with the explicit goal of using it with QEMU.
A number of differences to note from the original:
* Since the board was apparently unmaintained, I have now set myself
as the maintainer.
* The board has been converted to use the driver model, which was the
reason it was removed in the first place.
* The vexpress_ca15_tc2 and vexpress_ca5x2 boards, which were removed
in the same commit, are not necessary for the QEMU use case, and
have been omitted.
* An `mmc0` alias was introduced in the dts file. The mmc is not
detected correctly without this, now that it's based on the device
tree instead of the board's init function.
* A couple of other nodes were removed because they were problematic
when trying to run the UEFI bootmgr. Once again, the primary use
case here is QEMU, and these nodes are not needed for that to work.
* Unnecessary board init code has been removed, thanks to driver model
and device tree.
* `CONFIG_OF_EMBED` has been enabled. I know this goes against
recommended practice, but there doesn't seem to be any other way to
pass the dtb to U-Boot in the QEMU scenario. Using the -dtb argument
does not work, I suppose because U-Boot doesn't use the same
mechanics as the kernel when it's booting.
* Load addresses have been changed to fit QEMU use case.
People wanting to get a more detailed, yet somewhat isolated, diff
between this and the original, can run this command:
git diff c6c26a05b89f25a06e7562f8c2071b60fd0c9eac~1 -- \
$( git diff-tree --diff-filter=A -r --name-only HEAD~1 HEAD)
(Make sure to either check out this commit first, or replace HEAD with
the commit ID of this commit)
Signed-off-by: Kristian Amlie <kristian.amlie@northern.tech>
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Simplify the bootm and the spl code by using the new config
CONFIG_SUPPORT_PASSING_ATAGS.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
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This patch enables the use of the optimized memset(), memmove() &
memcpy() versions recently added on ARM64.
Please note that these optimized functions are now only enabled for
recent GCC versions (>= 9.4), as earlier GCC versions throw these
errors:
aarch64-linux-ar: warning: arch/arm/lib/memset-arm64.o: unsupported GNU_PROPERTY_TYPE (5) type: 0xc0000000
...
Signed-off-by: Stefan Roese <sr@denx.de>
[trini: Make this default to off as it causes problems on some platforms still]
Signed-off-by: Tom Rini <trini@konsulko.com>
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The optimized memset uses the dc opcode, which causes problems when the
cache is disabled. This patch adds a check if the cache is disabled and
uses a very simple memset implementation in this case. Otherwise the
optimized version is used.
Signed-off-by: Stefan Roese <sr@denx.de>
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Ported from https://github.com/ARM-software/optimized-routines
These files are included from this repository, including the latest
git commit ID:
string/aarch64/memcpy.S: afd6244a1f8d
string/aarch64/memset.S: e823e3abf5f8
string/asmdefs.h: e823e3abf5f8
Note that memmove is also handled by the memcpy function.
Please note that when adding these optimized functions as default memset
memcpy functions in U-Boot, U-Boot fails to boot on the LX2160ARDB.
After the initial ATF output, no U-Boot output is shown on the serial
console. Some exception is triggered here in the very early boot process
as some of the assembler opcodes need the caches to be enabled.
Because of this, a follow-up patch will add a check to use a simple
non-optimized memset for the "cache disabled" case.
Note:
I also integrated and tested with the Linux versions of these optimized
functions. They are similar to the ones now integrated but these ARM
versions are still a small bit faster.
Signed-off-by: Stefan Roese <sr@denx.de>
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On MediaTek boards we cannot override the SYS_BOARD / SYS_CONFIG_NAME
variables from defconfig.
This is because in board/mediatek/mtXXXX/Kconfig this value was override
by default due to the if CONFIG_TARGET_MTXXXX condition.
Merge all the Kconfigs to the mach-medatek/Kconfig.
This way:
- we only define SYS_{SOC,VENDOR} once
- all board definitions are in a single place, simplifying the build logic.
Signed-off-by: Guillaume La Roque <glaroque@baylibre.com>
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This function is clearly architecture specific code, not board specific
code. The only difference from the previous arm arch_lmb_reserve() is the
extra reservation of 16k of memory below the stack bottom, rather than
the 4k. The common code now also uses 16k alignment. Remove this custom
implementation, as it now behaves exactly as the common code.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Alexey Brodkin <alexey.brodkin@synopsys.com>
Cc: Angelo Dureghello <angelo@sysam.it>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Cc: Hai Pham <hai.pham.ud@renesas.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Ye Li <ye.li@nxp.com>
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According to input NXP, the 4k alignment is not always sufficient.
Currently iMX works around this problem by implementing board specific
LMB reservation, however it is likely this could also occur on other
systems. Increase the LMB reservation alignment to 16k by default.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Alexey Brodkin <alexey.brodkin@synopsys.com>
Cc: Angelo Dureghello <angelo@sysam.it>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Cc: Hai Pham <hai.pham.ud@renesas.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Ye Li <ye.li@nxp.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
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Switch arc/arm/m68k/microblaze/mips/ppc arch_lmb_reserve() to
arch_lmb_reserve_generic().
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Alexey Brodkin <alexey.brodkin@synopsys.com>
Cc: Angelo Dureghello <angelo@sysam.it>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Cc: Hai Pham <hai.pham.ud@renesas.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Wolfgang Denk <wd@denx.de>
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The arch_lmb_reserve() is called by lib/lmb.c lmb_reserve_common() even
if CMD_BOOT{I,M,Z} is not enabled. However, the arm32/arm64 variant of
arch_lmb_reserve() is only compiled in if CMD_BOOT{I,M,Z} is enabled.
This currently does not trigger build error, because there is an empty
weak implementation of arch_lmb_reserve(), however that is not the
function that should be used on arm32/arm64.
Fix this by moving the arch_lmb_reserve() implementation into common
code and always compile it in.
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
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ARMv8.0 has optional crc32 instruction for crc32 calculation. The
instruction is mandatory since ARMv8.1. The crc32 calculation is
faster using the dedicated instruction, e.g. 1.4 GHz iMX8MN gives:
=> time crc32 0x50000000 0x2000000
time: 0.126 seconds # crc32 instruction
time: 0.213 seconds # software crc32
Add implementation using the compiler builtin wrapper for the crc32
instruction and enable it by default, since we don't support any
platforms which do not implement this instruction.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Simon Glass <sjg@chromium.org>
[trini: Make crc32_table guarded by CONFIG_ARM64_CRC32]
Signed-off-by: Tom Rini <trini@konsulko.com>
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Replace the current 2-instruction 2-step tripling code by a
corresponding single instruction leveraging ARMv8-A's "flexible second
operand as a register with optional shift". This has the added benefit
(albeit arguably negligible) of reducing the final code size.
Fix the comment as the tripled cache level is placed in x12, not x0.
Signed-off-by: Pierre-Clément Tosi <ptosi@google.com>
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Improve the file's readability and conciseness by using the appropriate
Aarch64 instruction: ubfx (unsigned bitfield extract). This makes the
code easier to follow as it directly manipulates the offsets and widths
of the fields read from system registers, as they are expressed in the
Standard (ARM ARM). This has the added benefit (albeit arguably
negligible) of reducing the final code size.
Signed-off-by: Pierre-Clément Tosi <ptosi@google.com>
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https://source.denx.de/u-boot/custodians/u-boot-at91 into next
First set of u-boot-at91 features for the 2022.01 cycle:
This feature set includes : the support for CPU driver for arm926
(sam9x60 device); changes required for OP-TEE boot for sama5d2_xplained
and sama5d27_som1_ek boards; QSPI boot configuration for sama5d2_icp;
starting to remove old Kconfig unused symbols from config_whitelist.txt
(work will take more time); also small fixes and updates in mach, DT,
configs, etc.
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Replace the number in the flexcom-mode property with the define from the
include file.
This corresponds to the approach in Linux kernel.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
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The AT91 RM9200DK board was removed long time ago.
Remove existing references that were not cleaned up.
Fixes: 1c85752258 ("ARM: remove broken "at91rm9200dk" board")
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
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Fixed the following DTC build warning (reproducible with W=1)
arch/arm/dts/at91-sama5d2_icp.dtb: Warning (unit_address_format): /ahb/ohci@00400000: unit name should not have leading 0s
arch/arm/dts/at91-sama5d2_icp.dtb: Warning (unit_address_format): /ahb/ehci@00500000: unit name should not have leading 0s
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Reviewed-by: Alexander Dahl <ada@thorsis.com>
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Reorder the nodes following the kernel rules: nodes in a range are sorted
by ascending bus address, and when referenced by phandle, are ordered
alphabetically.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
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Add support for sst26vf064b 64Mbit qspi-flash that is
present on sama5d2_icp board.
Signed-off-by: Mihai Sain <mihai.sain@microchip.com>
[eugen.hristev@microchip.com: move u-boot properties to sama5d2_icp-u-boot.dtsi]
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
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sama5d2_xplained DRAM detection code will be modified to use device tree
instead of hardcoded addresses. In order to prepare that, add the memory
node to at91-sama5d2_xplained.dts.
Signed-off-by: Clément Léger <clement.leger@bootlin.com>
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When SYSRESET is enabled, cpu_reset function is also defined in
sysreset-uclass.c which lead to multiple definitions of this function
since reset.c is build unconditionally. Add a check in Makefile to build
this file only if SYSRESET isn't enabled.
SYSRESET can be enabled when building SYSRESET_PSCI for instance on this
platform.
Signed-off-by: Clément Léger <clement.leger@bootlin.com>
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Add bindings for CPU. This will allow displaying correctly the crystal,
CPU and master clock.
Reported-by: Eugen Hristev <eugen.hristev@microchip.com>
Fixes: a64862284f65 ("clk: at91: sam9x60: add support compatible with
CCF")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
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Add SAMA5D29 SoC for identification during the boot up.
Signed-off-by: Hari Prasath <Hari.PrasathGE@microchip.com>
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Header file version.h does not use anything from timestamp.h. Including of
timestamp.h has side effect which cause recompiling object file at every
make run because timestamp.h changes at every run.
So remove timestamp.h from version.h and include timestamp.h in files
which needs it.
This change reduce recompilation time of final U-Boot binary when U-Boot
source files were not changed as less source files needs to be recompiled.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
[trini: Add in lib/acpi/acpi_table.c and test/dm/acpi.c, rework a few others]
Signed-off-by: Tom Rini <trini@konsulko.com>
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Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
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Prepare v2021.10-rc4
Signed-off-by: Tom Rini <trini@konsulko.com>
# gpg: Signature made Tue 14 Sep 2021 06:58:32 PM EDT
# gpg: using RSA key 1A3C7F70E08FAB1707809BBF147C39FF9634B72C
# gpg: Good signature from "Thomas Rini <trini@konsulko.com>" [ultimate]
# Conflicts:
# board/Arcturus/ucp1020/spl.c
# cmd/mvebu/Kconfig
# common/Kconfig.boot
# common/image-fit.c
# configs/UCP1020_defconfig
# configs/sifive_unmatched_defconfig
# drivers/pci/Kconfig
# include/configs/UCP1020.h
# include/configs/sifive-unmatched.h
# lib/Makefile
# scripts/config_whitelist.txt
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This option has not effect now. Drop it, using PCI instead where needed.
Signed-off-by: Simon Glass <sjg@chromium.org>
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In the cdns3 usb driver, the clock name looked for is ref. Therefore, fix
the clock-names property in usb0 instance for proper initialization of
cdns3 usb gadget driver.
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
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As per Device Tree Specification [1], the status parameter of nodes can
be "okay", "disabled", etc. "ok" is not a valid parameter.
U-boot Driver Model does not recognize status="ok" either and treats
the node as disabled.
[1] https://github.com/devicetree-org/devicetree-specification/releases/tag/v0.3
Signed-off-by: Roger Quadros <rogerq@kernel.org>
Reviewed-by: Nishanth Menon <nm@ti.com>
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Add u-boot,dm-spl tag in the pinmux device tree node, required for MMCSD1
subsystem.
Fixes: b6059ddc45b9 ("arm: dts: k3-am642: Add r5 specific dt support")
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
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USB nodes were mistakenly disabled in
commit 942853dd96df ("arm: dts: Resync BeagleBone device trees")
This commit is to fix the following issue:
starting USB...
No working controllers found
USB is stopped. Please issue 'usb start' first.
starting USB...
No working controllers found
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0782e8572ce43f521ed6ff15e4a7ab9aa5acdc85
Fixes: 942853dd96df ("arm: dts: Resync BeagleBone device trees")
Signed-off-by: Matwey V. Kornilov <matwey.kornilov@gmail.com>
Reviewed-by: Paul Barker <paul.barker@sancloud.com>
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Since mvpp2 is using the new mdio driver and the cp110 has been
synced with the linux upstream, the mdio has to enabled in the
device tree file.
This is missing for some device tree files and therefore the
network cards do not come online.
Signed-off-by: Sven Auhagen <sven.auhagen@voleatech.de>
Reviewed-by: Stefan Roese <sr@denx.de>
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SHA512_ALGO was used as a "either SHA512 or SHA384", although the
implementations of these two algorithms share a majority of code.
From a Kconfig interface perspective, it makes sense to present two
distinct options. This requires #ifdefing out the SHA512
implementation from sha512.c. The latter doesn't make any sense.
It's reasonable to say in Kconfig that SHA384 depends on SHA512, and
seems to be the more polite way to handle the selection.
Thus, automatically select SHA512 when SHA384 is enabled.
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
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As part of migrating support for ATAGs to Kconfig, add an option for
setting and passing MACH_TYPE.
Signed-off-by: Tom Rini <trini@konsulko.com>
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With the exceptions of ds109, ds414, icnova-a20-swac, nokia_rx51 and
stemmy, disable ATAG support. A large number of platforms had enabled
support but never supported a kernel so old as to require it. Further,
some platforms are old enough to support both, but are well supported by
devicetree booting, and have been for a number of years. This is
because some of the ATAGs related functions have been re-used to provide
the same kind of information, but for devicetree or just generally to
inform the user. When needed still, rename these functions to
get_board_revision() instead, to avoid conflicts. In other cases, these
functions were simply unused, so drop them.
Cc: Andre Przywara <andre.przywara@arm.com>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Cc: Phil Sutter <phil@nwl.cc>
Cc: Stefan Bosch <stefan_b@posteo.net>
Signed-off-by: Tom Rini <trini@konsulko.com>
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No iMX platforms have supported ATAG-based booting. They have however
re-used the CONFIG_SERIAL_TAG option as a way to enable support of
reading the OTP fuses and setting the serial# environment variable in
some cases. Change the warp7 support to use this symbol, use this for
updating the rest of the imx7 code, and update the imx8 conditionals.
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP i.MX U-Boot Team <uboot-imx@nxp.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
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When booting in EFI, lib/efi_loader/efi_memory.c calls
board_get_usable_ram_top(0) which returns by default
gd->ram_base + gd->ram_size which is the top of DDR.
In case of OPTEE boot, the top of DDR is currently reserved by OPTEE,
board_get_usable_ram_top(0) must return an address outside OPTEE
reserved memory.
gd->ram_top matches this constraint as it has already been initialized
by substracting all DT reserved-memory (included OPTEE memory area).
Fixes: 92b611e8b003 ("stm32mp: correctly handle board_get_usable_ram_top(0)")
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
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Rename this options so that CONFIG_IS_ENABLED can be used with it.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Rename these options so that CONFIG_IS_ENABLED can be used with them.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Rename these options so that CONFIG_IS_ENABLED can be used with them.
Signed-off-by: Simon Glass <sjg@chromium.org>
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Rename these options so that CONFIG_IS_ENABLED can be used with them.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
[trini: Fixup some incorrect renames]
Signed-off-by: Tom Rini <trini@konsulko.com>
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Per a request from Andre Przywara and agreed with by Peter Hoyes, the
vexpress aemv8r support wasn't quite ready to be merged, but the
discussion had moved off list. We should keep the first patch in the
series for now, but revert the rest. This reverts the following
commits:
e0bd6f31ce41 doc: Add documentation for the Arm vexpress board configs
30e5a449e8c7 arm: Use armv8_switch_to_el1 env to switch to EL1
b53bbca63bf4 vexpress64: Add BASER_FVP vexpress board variant
2f5b7b74903f armv8: Add ARMv8 MPU configuration logic
37a757e227cc armv8: Ensure EL1&0 VMSA is enabled
Signed-off-by: Tom Rini <trini@konsulko.com>
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The prototype of psci_features() duplicated. Remove extra declaration.
Fixed: e21e3ffdd1 ("psci: Fix warnings when compiling with W=1")
Reported-by: Michael Scott <mike@foundries.io>
Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@foundries.io>
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For ARMv8-A, NEON is standard, so the compiler can use it even when no
special target flags are provided. For example, it can use stores from
NEON registers to zero-initialize large structures. GCC 11 decides to
do this inside the DRAM init code for the Allwinner H6.
However, GCC 11 has a bug where it generates misaligned NEON register
stores even with -mstrict-align. Since the MMU is not enabled this early
in SPL, the misaligned store causes an exception and breaks booting.
Work around this issue by restricting the compiler to using GPRs only,
not vector registers. This prevents any future surprises relating to
NEON use as well.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Acked-by: Andre Przywara <andre.przywara@arm.com>
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Use the environment variable armv8_switch_to_el1 to determine whether
to switch to EL1 at runtime. This is an alternative to the
CONFIG_ARMV8_SWITCH_TO_EL1 compile-time option.
The environment variable will be ineffective if the ARMV8_MULTIENTRY
config is used.
This is required by the Armv8r64 architecture, which must be able to
boot at S-EL1 for Linux but may need to boot at other ELs for other
systems.
Signed-off-by: Peter Hoyes <Peter.Hoyes@arm.com>
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The BASER_FVP board variant is implemented on top of the BASE_FVP board
config (which, in turn, is based on the Juno Versatile Express board
config). They all share a similar memory map - for BASER_FVP the map is
inverted from the BASE_FVP
(https://developer.arm.com/documentation/100964/1114/Base-Platform/Base---memory/BaseR-Platform-memory-map)
* Create new TARGET_VEXPRESS64_BASER_FVP target, which uses the same
board config as BASE_FVP and JUNO
* Adapt vexpress_aemv8a.h header file to support BASER_FVP (and rename
to vexpress_aemv8.h)
* Enable config to switch to EL1 for the BASER_FVP
* Create vexpress_aemv8r defconfig
* Provide an MPU memory map for the BASER_FVP
For now, only single core boot is supported.
Signed-off-by: Peter Hoyes <Peter.Hoyes@arm.com>
[trini: Add MAINTAINERS, move BOOTCOMMAND to defconfig]
Signed-off-by: Tom Rini <trini@konsulko.com>
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Armv8r64 is the first Armv8 platform that only has a PMSA at the
current exception level. The architecture supplement for Armv8r64
describes new fields in ID_AA64MMFR0_EL1 which can be used to detect
whether a VMSA or PMSA is present. These fields are RES0 on Armv8a.
Add logic to read these fields and, for the protection of the memory
used by U-Boot, initialize the MPU instead of the MMU during init, then
clear the MPU regions before transition to the next stage.
Provide a default (blank) MPU memory map, which can be overridden by
board configurations.
Signed-off-by: Peter Hoyes <Peter.Hoyes@arm.com>
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On Armv8-R, the EL1&0 memory system architecture is configurable as a
VMSA or PMSA, and resets to an "architecturally unknown" value.
Add code to armv8_switch_to_el1_m which detects whether the MSA at
EL1&0 is configurable using the id_aa64mmfr0_el1 register MSA fields.
If it is we must ensure the VMSA is enabled so that a rich OS can boot.
The MSA and MSA_FRAC fields are described in the Armv8-R architecture
profile supplement (section G1.3.7):
https://developer.arm.com/documentation/ddi0600/latest/
Signed-off-by: Peter Hoyes <Peter.Hoyes@arm.com>
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The use of ARMv8.3 pointer authentication (PAuth) is governed by fields
in HCR_EL2, which trigger a 'trap to EL2' if not enabled. The reset
value of these fields is 'architecturally unknown' so we must ensure
that the fields are enabled (to disable the traps) if we are entering
the kernel at EL1.
The APK field disables PAuth instruction traps and the API field
disables PAuth register traps
Add code to disable the traps in armv8_switch_to_el1_m. Prior to doing
so, it checks fields in the ID_AA64ISAR1_EL1 register to ensure pointer
authentication is supported by the hardware.
The runtime checks require a second temporary register, so add this to
the EL1 transition macro signature and update 2 call sites.
Signed-off-by: Peter Hoyes <Peter.Hoyes@arm.com>
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