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* changes:
  drivers: renesas: rcar: io: Code cleanup
  drivers: renesas: rcar: pwrc: Code cleanup
  drivers: renesas: rcar: common: Code cleanup
  drivers: renesas: rcar: watchdog: Fix typo
  drivers: renesas: rcar: scif: Fix coding style
  drivers: renesas: rcar: iic_dvfs: Fix coding style

* changes:
  drivers: renesas: rcar: dma: Fix coding style
  drivers: renesas: rcar: delay: Fix checkpatch warnings
  drivers: renesas: rcar: avs: Fix checkpatch warnings
  drivers: renesas: rcar: auth: Use space instead of TAB

Write char if fifo is empty. If this is done like this all chars are
printed. Because origin code just put that chars to fifo and in case of
reset messages were missing.

Before this change chars are put to fifo and only check before adding if
fifo is full. The patch is changing this logic that it is adding char only
when fifo is empty to make sure that in case of reset (by another SW for
example) all chars are printed. Maybe one char can be missed but for IP
itself it is much easier to send just one char compare to full fifo.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Change-Id: Ic24c2c1252bce24be2aed68ee29477ca4a549e5f

This patch fixes checkpatch warnings and arrange header
as per TF-A coding style.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Change-Id: I46cd4d9b2851202324fe714e776cf3ad2ee1d923

Sort the headers alphabetically and replace TAB with a space
after #define.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Change-Id: I07c358294b7c02cbfa360112bbbde0eb5f2b50f5

This patches fixes checkpatch warnings, replace TAB with space
after #define macros and arrange header as per TF-A coding style.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Change-Id: Iba009587e0b499b3ae58876be390602ae14175b2

Fix checkpatch warnings.

There are no functional changes.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Change-Id: Iec7dd019bd38e84eccd8cc17189745fdef1911bb

This patch fixes the below checkpatch warnings
 Line 13: WARNING: please, no spaces at the start of a line
 Line 15: WARNING: please, no spaces at the start of a line
 Line 18: WARNING: Missing a blank line after declarations
 Line 24: WARNING: please, no spaces at the start of a line
 Line 26: WARNING: please, no spaces at the start of a line
 Line 29: WARNING: Missing a blank line after declarations
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Change-Id: I41d146e86889640d11e88c0717039353ddceff0d

Fix checkpatch warnings.

There are no functional changes.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Change-Id: Ic7406aa88e121914270a8d192f170c9c4244578a

Fix the typo "occured" -> "occurred"
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Change-Id: Ic66ceab364f7dc926dc6a6db641ca173601cd031

Use space instead of TAB after #define's. Also updated
header files as per TF-A coding style.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Change-Id: I4eac94f0bc79f24b8ac7165ec48f1e1de95d7205

Replace TAB with space after #define macros and update comments as per
TF-A coding style.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Change-Id: Iff46838a41f991f7dd9dc6fb043e9e482ea0b11d

Sort the header includes alphabetically, fix typos and drop unneeded TAB
and replace it with space
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Change-Id: I62e2658b0309c0985dd32ff023b8b16bd7f2be8e

Merge "plat: marvell: armada: a3k: support doing system reset via CM3 secure coprocessor" into integration

* changes:
  plat: zynqmp: Disable ITAPDLYENA bit for zero ITAP delay
  plat: zynqmp: Check for DLL status before doing reset

This patch provides the following changes in fixup_gdt_reloc()
function:
- Fixes assertions in processing dynamic relocations, when
relocation entries not matching R_AARCH64_RELATIVE type are found.
Linker might generate entries of relocation type R_AARCH64_NONE
(code 0), which should be ignored to make the code boot. Similar
issue was fixed in OP-TEE (see optee_os/ldelf/ta_elf_rel.c
commit 7a4dc765c133125428136a496a7644c6fec9b3c2)
- Fixes bug when "b.ge" (signed greater than or equal) condition
codes were used instead of "b.hs" (greater than or equal) for
comparison of absolute addresses.
- Adds optimisation which skips fixing Global Object Table (GOT)
entries when offset value is 0.

Change-Id: I35e34e055b7476843903859be947b883a1feb1b5
Signed-off-by: Alexei Fedorov <Alexei.Fedorov@arm.com>

Introduce a new build option CM3_SYSTEM_RESET for A3700 platform, which,
when enabled, adds code to the PSCI reset handler to try to do system
reset by the WTMI firmware running on the Cortex-M3 secure coprocessor.
(This function is exposed via the mailbox interface.)

The reason is that the Turris MOX board has a HW bug which causes reset
to hang unpredictably. This issue can be solved by putting the board in
a specific state before reset.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Change-Id: I3f60b9f244f334adcd33d6db6a361fbc8b8d209f

* changes:
  xilinx: zynqmp: Add support for Error Management
  zynqmp:pm: Adds new zynqmp-pm api SMC call for efuse
  zynqmp : pm : Adds new zynqmp-pm api SMC call for register access

Adding the EM specific smc handler for the EM-related requests.
Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@xilinx.com>
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Change-Id: I98122d49604a01a2f6bd1e509a5896ee68069dd0

This patch adds new api to access zynqmp efuse memory
Signed-off-by: VNSL Durga <vnsl.durga.challa@xilinx.com>
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Change-Id: I0971ab6549552a6f96412431388d19b822db00ab

This patch adds new zynqmp-pm api to provide read/write access to
CSU or PMU global registers.
Signed-off-by: Kalyani Akula <kalyania@xilinx.com>
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Change-Id: I4fd52eb732fc3e6a8bccd96cad7dc090b2161042

This patch fixes AXG platform build error:
plat/amlogic/axg/axg_pm.c: In function 'axg_pwr_domain_off':
plat/amlogic/axg/axg_pm.c:124:43: error: array subscript 2
 is above array bounds of 'const plat_local_state_t[2]'
 {aka 'const unsigned char[2]'}
by changing PLAT_MAX_PWR_LVL from MPIDR_AFFLVL1 to MPIDR_AFFLVL2
in plat\amlogic\axg\include\platform_def.h.

Change-Id: I9a701e8f26231e62f844920aec5830664f3fb324
Signed-off-by: Alexei Fedorov <Alexei.Fedorov@arm.com>

* changes:
  ti: k3: Introduce lite device board support
  ti: k3: common: sec_proxy: Introduce sec_proxy_lite definition
  ti: k3: Move USE_COHERENT_MEM only for the generic board
  ti: k3: drivers: ti_sci: Update ti_sci_msg_req_reboot to include domain
  ti: k3: common: sec_proxy: Fill non-message data fields with 0x0
  ti: k3: common: Make plat_get_syscnt_freq2 check CNT_FID0 GTC reg
  ti: k3: common: Enable A72 erratum 1319367
  ti: k3: common: Enable A53 erratum 1530924
  maintainers: Update maintainers for TI port

Implementation is simple, just wait for the TX FIFO to be empty.

Without this patch TF-A on A3720 truncate the last line:

  NOTICE:  BL31: Built : 16:1

With this patch TF-A on A3720 print correctly also the last line:

  NOTICE:  BL31: Built : 19:03:31, Dec 23 2020
Signed-off-by: Pali Rohár <pali@kernel.org>
Change-Id: I2f2ea42beab66ba132afdb400ca7898c5419db09

Add device support for the 'lite' K3 devices. These will use modified
device addresses and allow for fewer cores to save memory.

Note: This family of devices are characterized by a single cluster
of ARMv8 processor upto a max of 4 processors and lack of a level 3
cache.

The first generation of this family is introduced with AM642.

See AM64X Technical Reference Manual (SPRUIM2, Nov 2020)
for further details: https://www.ti.com/lit/pdf/spruim2

Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Change-Id: I8cd2c1c9a9434646d0c72fca3162dd5bc9bd692a

There are two communication scheme that have been enabled to communicate
with Secure Proxy in TI.
a) A full fledged prioritized communication scheme, which involves upto
   5 threads from the perspective of the host software
b) A much simpler "lite" version which is just a two thread scheme
   involving just a transmit and receive thread scheme.

The (a) system is specifically useful when the SoC is massive
involving multiple processor systems and where the potential for
priority inversion is clearly a system usecase killer. However, this
comes with the baggage of significant die area for larger number of
instances of secure proxy, ring accelerator and backing memories
for queued messages. Example SoCs using this scheme would be:
AM654[1], J721E[2], J7200[3]  etc.

The (b) scheme(aka the lite scheme) is introduced on smaller SoCs
where memory and area concerns are paramount. The tradeoff of
priority loss is acceptable given the reduced number of processors
communicating with the central system controller. This brings about
a very significant area and memory usage savings while the loss of
communication priority has no demonstrable impact. Example SoC using
this scheme would be: AM642[4]

While we can detect using JTAG ID and conceptually handle things
dynamically, adding such a scheme involves a lot of unused data (cost
of ATF memory footprint), pointer lookups (performance cost) and still
due to follow on patches, does'nt negate the need for a different
build configuration. However, (a) and (b) family of SoCs share the
same scheme and addresses etc, this helps minimize our churn quite a
bit

Instead of introducing a complex data structure lookup scheme, lets
keep things simple by first introducing the pieces necessary for an
alternate communication scheme, then introduce a second platform
representing the "lite" family of K3 processors.

NOTE: This is only possible since ATF uses just two (secure) threads
for actual communication with the central system controller. This is
sufficient for the function that ATF uses.

The (a) scheme and the (b) scheme also varies w.r.t the base addresses
used, even though the memory window assigned for them have remained
consistent. We introduce the delta as part of this change as well.
This is expected to remain consistent as a standard in TI SoCs.

References:
[1] See AM65x Technical Reference Manual (SPRUID7, April 2018)
for further details: https://www.ti.com/lit/pdf/spruid7

[2] See J721E Technical Reference Manual (SPRUIL1, May 2019)
for further details: https://www.ti.com/lit/pdf/spruil1

[3] See J7200 Technical Reference Manual (SPRUIU1, June 2020)
for further details: https://www.ti.com/lit/pdf/spruiu1

[4] See AM64X Technical Reference Manual (SPRUIM2, Nov 2020)
for further details: https://www.ti.com/lit/pdf/spruim2

Signed-off-by: Nishanth Menon <nm@ti.com>
Change-Id: I697711ee0e6601965015ddf950fdfdec8e759bfc

commit 65f7b817

 ("ti: k3: common: Use coherent memory for shared data")
introduced WARMBOOT_ENABLE_DCACHE_EARLY and USE_COHERENT_MEM to handle
multiple clusters across L3 cache systems. This is represented by
"generic" board in k3 platform.

On "lite" platforms, however, system level coherency is lacking since
we don't have a global monitor or an L3 cache controller. Though, at
a cluster level, ARM CPU level coherency is very much possible since
the max number of clusters permitted in lite platform configuration is
"1".

However, we need to be able to disable USE_COHERENT_MEM for the lite
configuration due to the lack of system level coherency.

See docs/getting_started/build-options.rst for further information.
Signed-off-by: Nishanth Menon <nm@ti.com>
Change-Id: I4a0ec150b3f9ea12369254aef834a6cbe82d6be6

The ti_sci_msg_req_reboot message payload has been extended to include
a domain field, and this should be zero to reset the entire SoC with
System Firmwares newer than v2020.04. Add the domain field to the
ti_sci_msg_req_reboot message structure for completeness. Set it up
to zero to fix the reboot issues with newer firmwares.

This takes care of the specific ABI that changed and has an impact on
ATF function.
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Change-Id: I4f8064b9d6555687822dc2b2b8ec97609286fa0b

Sec proxy data buffer is 60 bytes with the last of the registers
indicating transmission completion. This however poses a bit
of a challenge.

The backing memory for sec_proxy is regular memory, and all sec proxy
does is to trigger a burst of all 60 bytes of data over to the target
thread backing ring accelerator. It doesn't do a memory scrub when
it moves data out in the burst. When we transmit multiple messages,
remnants of previous message is also transmitted which results in
some random data being set in TISCI fields of messages that have been
expanded forward.

The entire concept of backward compatibility hinges on the fact that
the unused message fields remain 0x0 allowing for 0x0 value to be
specially considered when backward compatibility of message extension
is done.

So, instead of just writing the completion register, we continue
to fill the message buffer up with 0x0 (note: for partial message
involving completion, we already do this).

This allows us to scale and introduce ABI changes back into TF-A only
as needed.
Signed-off-by: Nishanth Menon <nm@ti.com>
Change-Id: Ie22cb2a319f4aa80aef23ffc7e059207e5d4c640

ARM's generic timer[1] picks up it's graycode from GTC. However, the
frequency of the GTC is supposed to be programmed in CNTFID0[2]
register.

In K3, architecture, GTC provides a central time to many parts of the
SoC including graycode to the generic timer in the ARMv8 subsystem.
However, due to the central nature and the need to enable the counter
early in the boot process, the R5 based bootloader enables GTC and
programs it's frequency based on central needs of the system. This
may not be a constant 200MHz based on the system. The bootloader is
supposed to program the FID0 register with the correct frequency it
has sourced for GTC from the central system controller, and TF-A is
supposed to use that as the frequency for it's local timer.

A mismatch in programmed frequency and what we program for generic
timer will, as we can imagine, all kind of weird mayhem.

So, check the CNTFID0 register, if it is 0, warn and use the default
frequency to continue the boot process.

While at it, we can also check CNTCR register to provide some basic
diagnostics to make sure that we don't have OS folks scratch their
heads. Even though this is used during cpu online operations, the cost
of this additional check is minimal enough for us not to use #ifdeffery
with DEBUG flags.

[1] https://developer.arm.com/documentation/100095/0002/generic-timer/generic-timer-register-summary/aarch64-generic-timer-register-summary
[2] https://developer.arm.com/docs/ddi0595/h/external-system-registers/cntfid0
[3] https://developer.arm.com/docs/ddi0595/h/external-system-registers/cntcr

Signed-off-by: Nishanth Menon <nm@ti.com>
Change-Id: Ib03e06788580f3540dcb1a11677d0d6d398b2c9f

The CatB erratum ARM_ERRATA_A72_1319367 applies to all TI A72
platforms as well.

See the following for further information:
https://developer.arm.com/documentation/epm012079/11/

Signed-off-by: Nishanth Menon <nm@ti.com>
Change-Id: I80c6262b9cdadcb12f6dfd5a21272989ba257719

The CatB erratum ARM_ERRATA_A53_1530924 applies to all TI A53
platforms as well.

See the following for further information:
https://developer.arm.com/documentation/epm048406/2100

Signed-off-by: Nishanth Menon <nm@ti.com>
Change-Id: Ic095424ce510139e060b38cfb84509d2cc573cad

Andrew is no longer with TI unfortunately, so stepping up to provide
maintainer for supported TI platforms.
Signed-off-by: Nishanth Menon <nm@ti.com>
Change-Id: Ia1be294631421913bcbc3d346947195cb442d437

* changes:
  zynqmp: pm: Reimplement pinctrl get/set config parameter EEMI API calls
  zynqmp: pm: Reimplement pinctrl set/get function EEMI API
  zynqmp: pm: Implement pinctrl request/release EEMI API
  zynqmp: pm: Update return type in query functions