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* changes:
  allwinner: Use RSB for the PMIC connection on H6
  allwinner: Return the PMIC to I2C mode after use
  allwinner: Always use a 3MHz RSB bus clock

* changes:
  fdts: tc0: Add reserved-memory node for OP-TEE
  plat: tc0: OP-TEE as S-EL1 SP with SPMC at S-EL2
  docs: arm: Add OPTEE_SP_FW_CONFIG
  plat: tc0: enable opteed support
  plat: arm: Increase SP max size

Cortex A76 erratum 1946160 is a Cat B erratum, present in some revisions
of the A76 processor core.  The workaround is to insert a DMB ST before
acquire atomic instructions without release semantics.  This issue is
present in revisions r0p0 - r4p1  but this workaround only applies to
revisions r3p0 - r4p1, there is no workaround for older versions.

SDEN can be found here:
https://documentation-service.arm.com/static/5fbb77d7d77dd807b9a80cc1

Signed-off-by: John Powell <john.powell@arm.com>
Change-Id: Ief33779ee76a89ce2649812ae5214b86a139e327

RD-N2 platform has been updated to use six GIC ITS blocks. This results
in change in base address of the GIC Redistributor to accomodate two
new GIC ITS blocks. Update the base address of GICR to reflect the same.
Signed-off-by: Vijayenthiran Subramaniam <vijayenthiran.subramaniam@arm.com>
Change-Id: I740a547328fb9a9f25d7a09c08e61bdbc8bf781c

Add reserved-memory region for OP-TEE and mark as no-map. This memory
region is used by OP-TEE as non-secure shared RAM.
Signed-off-by: Arunachalam Ganapathy <arunachalam.ganapathy@arm.com>
Change-Id: I5a22999a8c5550024d0f47e848d35924017df245

This patch adds support to enable OP-TEE as S-EL1 SP with SPMC at S-EL2
     - create SPMC manifest file with OP-TEE as SP
     - add support for ARM_SPMC_MANIFEST_DTS build option
     - add optee entry with ffa as method in tc0.dts
Signed-off-by: Arunachalam Ganapathy <arunachalam.ganapathy@arm.com>
Change-Id: Ia9b5c22c6f605d3886914bbac8ac45e8365671cb

This adds documentation for device tree build flag OPTEE_SP_FW_CONFIG.
Signed-off-by: Arunachalam Ganapathy <arunachalam.ganapathy@arm.com>
Change-Id: Ie45f075cf04182701007f87aa0c8912cd567157a

Enable SPD=opteed support for tc0 platform.
Signed-off-by: Arunachalam Ganapathy <arunachalam.ganapathy@arm.com>
Change-Id: Ieb038d645c68fbe6b5a211c7279569e21b476fc3

Increase SP max size for latest OP-TEE build with debug and
stats enabled.
Signed-off-by: Arunachalam Ganapathy <arunachalam.ganapathy@arm.com>
Change-Id: I4593884e0deb39ada10009f6876d815136f8ee65

RSB is faster and more efficient, and it has a simpler driver. As long
as the PMIC is returned to I2C mode after use, the rich OS can later use
either bus.

Change-Id: I0c5f32e88a090c8c5cccb81bd24596b301ab9da7
Signed-off-by: Samuel Holland <samuel@sholland.org>

This gives the rich OS the flexibility to choose between I2C and RSB
communication. Since a runtime address can only be assigned once after
entering RSB mode, it also lets the rich OS choose any runtime address.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: Id49c124c5e925985fc31c0ba38c7fb6c941aafa8

None of the other drivers (Linux, U-Boot, Crust) need to lower the bus
clock frequency to switch the PMIC to RSB mode. That logic is not needed
here, either. The hardware takes care of running this transaction at the
correct bus frequency.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: Idcfe933df4da75d5fd5a4f3e362da40ac26bdad1

BL31 reports the following warning during boot:

  WARNING: BL31: cortex_a53: CPU workaround for 1530924 was missing!

Resolve this by enabling the workaround on the affected platforms.

Change-Id: Ia1d5075370be5ae67b7bece96ec0069d9692b14c
Signed-off-by: Samuel Holland <samuel@sholland.org>

While the Allwinner platform code nominally supported a custom
PRELOADED_BL33_BASE, some references to the BL33 load address used
another constant: PLAT_SUNXI_NS_IMAGE_OFFSET. To allow the DTB search
code to work if a U-Boot BL33 is loaded to a custom address,
consistently use PRELOADED_BL33_BASE. And to avoid this confusion in
the future, remove the other constant.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: Ie6b97ae1fdec95d784676aef39200bef161471b0

* changes:
  doc: Update list of supported FVP platforms
  board/rdn2: add board support for rdn2 platform
  plat/arm/sgi: adapt to changes in memory map
  plat/arm/sgi: add platform id value for rdn2 platform
  plat/arm/sgi: platform definitions for upcoming platforms
  plat/arm/sgi: refactor header file inclusions
  plat/arm/sgi: refactor the inclusion of memory mapping

If FEAT_PMUv3 is implemented and PMEVTYPER<n>(_EL0).MT bit is implemented
as well, it is possible to control whether PMU counters take into account
events happening on other threads.

If FEAT_MTPMU is implemented, EL3 (or EL2) can override the MT bit
leaving it to effective state of 0 regardless of any write to it.

This patch introduces the DISABLE_MTPMU flag, which allows to diable
multithread event count from EL3 (or EL2). The flag is disabled
by default so the behavior is consistent with those architectures
that do not implement FEAT_MTPMU.
Signed-off-by: Javier Almansa Sobrino <javier.almansasobrino@arm.com>
Change-Id: Iee3a8470ae8ba13316af1bd40c8d4aa86e0cb85e

This patch adds a new ARM_ARCH_FEATURE build option
to add support for compiler's feature modifiers.
It has the form '[no]feature+...' and defaults to
'none'. This option translates into compiler option
'-march=armvX[.Y]-a+[no]feature+...'.

Change-Id: I37742f270a898f5d6968e146cbcc04cbf53ef2ad
Signed-off-by: Alexei Fedorov <Alexei.Fedorov@arm.com>

Signed-off-by: Manish Pandey <manish.pandey2@arm.com>
Change-Id: Icef550072296d6aba89a0827dd72d0b86047556f

* changes:
  plat: xilinx: versal: Add support of register notifier
  plat: xilinx: versal: Add support to get clock rate value
  plat: xilinx: versal: Add support of set max latency for the device
  plat: versal: Add InitFinalize API call
  xilinx: versal: Updated Response of QueryData API call
  plat:xilinx:versal: Use defaults when PDI is without sw partitions
  plat: xilinx: Mask unnecessary bytes of return error code
  xilinx: versal: Skip store/restore of GIC during CPU idle
  plat: versal: Update API list in feature check
  xilinx: versal: Do not pass ACPU0 always in set_wakeup_source()

* changes:
  spm: provide number of vCPUs and VM size for first SP
  spm: remove chosen node from SPMC manifests
  spm: move OP-TEE SP manifest DTS to FVP platform
  spm: update OP-TEE SP manifest with device-regions node
  spm: remove device-memory node from SPMC manifests

Updated the documentation for the FIP generation process using
SP images.

Change-Id: I4df7f379f08f33adba6f5c82904291576972e106
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>

Updated the list of supported FVP platforms with support for RD-N2 FVP.

Change-Id: I861bbb6d520c20e718f072e118c66dab61fe1386
Signed-off-by: Aditya Angadi <aditya.angadi@arm.com>

Add the initial board support for RD-N2 platform.

Change-Id: I8325885bf248dd92191d6fc92a2da91c23118f8c
Signed-off-by: Aditya Angadi <aditya.angadi@arm.com>

Upcoming RD platforms will have an updated memory map for the various
pheripherals on the system. So, for the newer platforms, handle the
memory mapping and other platform specific functionality separately
from the existing platforms.

Change-Id: Iab1355a4c8ea1f6db4f79fcdd6eed907903b6a18
Signed-off-by: Aditya Angadi <aditya.angadi@arm.com>

In preparation for adding the board support for RD-N2 platform, add
macros to define the platform id and the corresponding SCMI platform
info for the RD-N2 platform.

Change-Id: Ie764ae618732b39e316f7ed080421f5d79adab21
Signed-off-by: Aditya Angadi <aditya.angadi@arm.com>

Upcoming RD platforms have changes in the SOC address map from that
of the existing platforms. As a prepartory step to add support for the
upcoming platforms, create platform definitions for those platforms.

Change-Id: Ic5df9fed02c44e65ec260bbb5efc1b8dbd919a56
Signed-off-by: Aditya Angadi <aditya.angadi@arm.com>

Upcoming RD platforms have deviations in various definitions of
platform macros from that of the exisiting platforms. In preparation
for adding support for those upcoming RD platforms, refactor the
header file inclusion to allow newer platforms to use a different
set of platform macros.

Change-Id: Ic80283ddadafaa7f766f300652cb0d4e507efdb6
Signed-off-by: Aditya Angadi <aditya.angadi@arm.com>

Upcoming RD platforms have a different memory map from those of the
existing platforms. So make the build of the existing mmap entries to be
usable only for existing platforms and let upcoming platforms define
a different set of mmap entries.

Change-Id: Id1ef0293efe8749c78a99237e78d32573c7233aa
Signed-off-by: Aditya Angadi <aditya.angadi@arm.com>

* changes:
  zynqmp: pm: Update flags in common clk divisor node
  zynqmp: pm_api_clock: Copy only the valid bytes

The BL31 log driver is registered before the xlat tables are initialized,
at that point the log memory is configured as device memory and can only
be accessed with up-to-32bit aligned accesses. Adjust the driver to do
just that.

The memset() call has to be replaced by a loop of 32bit writes to the log,
the memcpy() is trivial to replace with a single 32bit write of the entire
TLOG word. In the end, this even simplifies the code.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Change-Id: Ie9152e782e67d93e7236069a294df812e2b873bf

Current implementation doesn't support change of div1 value if clk
has 2 divisor because div1 clk is the parent of the div2 clk and div2
clk does not have SET_RATE_PARENT flag.
This causes div1 value to be fixed and only value of div2 will be
adjusted according to required clock rate.

Example:
 Consider a case of nand_ref clock which has 2 divisor and 1 mux.
 The frequency of mux clock is 1500MHz and default value of div1 and
 div2 is 15 and 1 respectively. So the final clock will be of 100MHz.
 When driver requests 80MHz for nand_ref clock, clock framework will
 adjust the div2 value to 1 (setting div2 value 2 results final clock
 to 50MHz which is more inaccurate compare to 100Mhz) which results
 final clock to 100MHz.
 Ideally the value of div1 and div2 should be updated to 19 and 1
 respectively so that final clock goes to around 78MHz.

This patch fixes above problem by allowing change in div1 value.
Signed-off-by: Ravi Patel <ravi.patel@xilinx.com>
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Change-Id: Ibb98f6748d28653fdd1e59bf433b6a37ce9c1a58