feat(rcar): rewrite console_renesas_register() in C

Replace assembler implementation of console_renesas_register() with
matching C implementation. Since it is now easily possible to pass
flags into

feat(rcar): rewrite console_renesas_register() in C

Replace assembler implementation of console_renesas_register() with
matching C implementation. Since it is now easily possible to pass
flags into console_renesas_register() and then onward to the console
initialization, adjust the signature of console_renesas_register()
and include the flags in it. Adjust both rcar_console_boot_init()
and rcar_console_runtime_init() to call console_renesas_register()
with its new combined set of parameters and drop console_set_scope()
invocation which is no longer needed, because the flags are passed
directly into console_renesas_register().

Drop console_renesas_flush() which is always a noop. Drop return
value from console_renesas_init() which is always 1.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Change-Id: I1c7d1a81b6922138b6e2e80f2635fcc8558685c7

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refactor(rcar): rename console_rcar_ to console_renesas_ prefix for Renesas platform

Rename console_rcar_ to console_renesas_ prefix for SCIF-based console
driver to make it reusable by other Renesa

refactor(rcar): rename console_rcar_ to console_renesas_ prefix for Renesas platform

Rename console_rcar_ to console_renesas_ prefix for SCIF-based console
driver to make it reusable by other Renesas platforms.

Due to the above renaming, function console_renesas_register is duplicated
in both scif.h and console.h, so it should be removed from scif.h

Change-Id: I42b44d1786578f7ed8db34e7da421836ea60b5e2
Signed-off-by: Nhut Nguyen <nhut.nguyen.kc@renesas.com>

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feat(rcar): fold console_rcar_* functions into rcar_printf.c

The three console_rcar_{init,putc,flush}() no-op functions can
easily be C functions, they do not need assembler wrappers. Move
the funct

feat(rcar): fold console_rcar_* functions into rcar_printf.c

The three console_rcar_{init,putc,flush}() no-op functions can
easily be C functions, they do not need assembler wrappers. Move
the functions into rcar_printf.c which is part of the custom
R-Car Gen3 memory logging console. Remove rcar_printf.c from
BL2 builds, as it is not useful there. Rename rcar_set_log_data()
to console_rcar_putc() and update its signature, it is no longer
necessary to have such a wrapper around C function.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Change-Id: Ia7a1c37b2151f6217cde70ffd2b367643d3184e4

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feat(rcar): rewrite SCIF driver from assembler to C

Rewrite the SCIF driver from difficult to read assembler to plain C.
Use scif-common.c which contains putc() and flush() helper functions
to avoid

feat(rcar): rewrite SCIF driver from assembler to C

Rewrite the SCIF driver from difficult to read assembler to plain C.
Use scif-common.c which contains putc() and flush() helper functions
to avoid duplication, so only fill in the initialization code. Drop
support for external clock, which is unused. Clean up macros and drop
ones which are not referenced.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Change-Id: Ia933c505c33e133e45448c82776a17629f3df1eb

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fix(rcar3): prevent boot CPU hot unplug

The boot CPU runs both TFA and later also Trusted OS, which is UP and can
not be migrated to another CPU. Report MIGRATE_INFO_TYPE "Uniprocessor (UP)
not migr

fix(rcar3): prevent boot CPU hot unplug

The boot CPU runs both TFA and later also Trusted OS, which is UP and can
not be migrated to another CPU. Report MIGRATE_INFO_TYPE "Uniprocessor (UP)
not migrate capable 1" to the OS, so any attempts at CPU_OFF and MIGRATE
of the boot CPU would be DENIED. This has an effect also e.g. on the Linux
kernel, where it prevents stopping boot CPU (CPU0) using CPU hotplug, which
must not be allowed, as it would interfere with the Trusted OS.

Change-Id: I0f38e64711c13ae48e819fb33939451720749c68
Signed-off-by: Toshiyuki Ogasahara <toshiyuki.ogasahara.bo@hitachi.com>
Signed-off-by: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
Signed-off-by: Dien Pham <dien.pham.ry@renesas.com>
Signed-off-by: Hieu Nguyen <hieu.nguyen.dn@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>

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Merge "feat(rcar3): rephrase RCAR_BL31_CRASH_BASE definition" into integration

feat(rcar3): rephrase RCAR_BL31_CRASH_BASE definition

Since RCAR_BL31_CRASH_BASE depends on the RCAR_TRUSTED_SRAM_BASE,
use it for the RCAR_BL31_CRASH_BASE calculation.

Change-Id: Ibf3b4747a8dbd8fb

feat(rcar3): rephrase RCAR_BL31_CRASH_BASE definition

Since RCAR_BL31_CRASH_BASE depends on the RCAR_TRUSTED_SRAM_BASE,
use it for the RCAR_BL31_CRASH_BASE calculation.

Change-Id: Ibf3b4747a8dbd8fbbff793387d841e615788a003
Signed-off-by: Vincent Bryce <vincent.bryce@cogentembedded.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>

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fix(rcar): enable intialisation code for EL3 to NS-EL1 handoff

Enable initialisation code for handoff from EL3 to NS-EL1 using the
INIT_UNUSED_NS_EL2 flag on both R-Car Gen3 and Gen4 SoCs. This is
u

fix(rcar): enable intialisation code for EL3 to NS-EL1 handoff

Enable initialisation code for handoff from EL3 to NS-EL1 using the
INIT_UNUSED_NS_EL2 flag on both R-Car Gen3 and Gen4 SoCs. This is
used by cores which proceed directly from EL3 to NS-ES1 and have no
code in NS-EL2.

Change-Id: I4d2441e23a0020fe98298c7f329514686ca62fe4
Signed-off-by: Hieu Nguyen <hieu.nguyen.dn@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
---
Marek: update commit message, combined for Gen3 and Gen4

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Merge changes I82beb663,Ie970984e,Ia13f8e09,Ib498832d into integration

* changes:
feat(rcar): deduplicate plat_crash_print_regs
feat(rcar): split common SCIF code
feat(rcar): replace static rc

Merge changes I82beb663,Ie970984e,Ia13f8e09,Ib498832d into integration

* changes:
feat(rcar): deduplicate plat_crash_print_regs
feat(rcar): split common SCIF code
feat(rcar): replace static rcar_putc pointer with static register offsets
feat(rcar): deduplicate SCIF console_rcar_register

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Merge "feat(rcar): deduplicate PWRC timer" into integration

Merge changes I24209ac0,I1caf6cc6 into integration

* changes:
feat(rcar): deduplicate PWRC SRAM trampoline
feat(rcar): deduplicate stack protector

Merge "fix(rcar3): clear TCR_EL1 at the BL2 entry point" into integration

feat(rcar): deduplicate plat_crash_print_regs

The plat_crash_print_regs code is functionally identical between
Renesas R-Car Gen3 and R-Car Gen4, deduplicate the code. Split
plat_crash_print_regs in

feat(rcar): deduplicate plat_crash_print_regs

The plat_crash_print_regs code is functionally identical between
Renesas R-Car Gen3 and R-Car Gen4, deduplicate the code. Split
plat_crash_print_regs into plat_macros_cci.S and move the Gen3
specific plat_print_gic_regs macro into plat_macros_gic.S so it
can be pulled in only on R-Car Gen3.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Change-Id: I82beb663e769e7b33a79b992da9f70db7bad2d51

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refactor(build): make it standard to request a custom linker script

Hoist the add_define to a global location so that platforms only have to
declare its usage. Fix up #ifdef to #if since we will now

refactor(build): make it standard to request a custom linker script

Hoist the add_define to a global location so that platforms only have to
declare its usage. Fix up #ifdef to #if since we will now always pass a
definition.

Change-Id: Ia52ad5ed4dcbd157d139c8ca2fb3d35b32343b93
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>

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feat(rcar): deduplicate SCIF console_rcar_register

The console_rcar_register assembler macro is functionally identical
between Renesas R-Car Gen3 and R-Car Gen4, deduplicate the code.

Signed-off-by

feat(rcar): deduplicate SCIF console_rcar_register

The console_rcar_register assembler macro is functionally identical
between Renesas R-Car Gen3 and R-Car Gen4, deduplicate the code.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Change-Id: Ib498832dbed9063efdb9979e89e53d119303d9df

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feat(rcar): deduplicate PWRC timer

The PWRC timer code is functionally identical between
Renesas R-Car Gen3 and R-Car Gen4, deduplicate the code.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mai

feat(rcar): deduplicate PWRC timer

The PWRC timer code is functionally identical between
Renesas R-Car Gen3 and R-Car Gen4, deduplicate the code.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Change-Id: Id50a730ea58faedaa24380fd3171be171ecd7269

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feat(rcar): deduplicate stack protector

The stack protector code is functionally identical between
Renesas R-Car Gen3 and R-Car Gen4, deduplicate the code.

Signed-off-by: Marek Vasut <marek.vasut+r

feat(rcar): deduplicate stack protector

The stack protector code is functionally identical between
Renesas R-Car Gen3 and R-Car Gen4, deduplicate the code.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Change-Id: I1caf6cc6a9ace678b50013eee1a5506fba9acccc

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fix(rcar3): clear TCR_EL1 at the BL2 entry point

According to ARM DDI0601 2025-06 [1] TCR_EL1, Translation Control
Register (EL1), all fields of TCR_EL1 do, on a Warm reset, (this
field) resets to a

fix(rcar3): clear TCR_EL1 at the BL2 entry point

According to ARM DDI0601 2025-06 [1] TCR_EL1, Translation Control
Register (EL1), all fields of TCR_EL1 do, on a Warm reset, (this
field) resets to an architecturally UNKNOWN value.

On some SoCs, after reset, this TCR_EL1 may not be 0, which in itself
is perfectly valid behavior. However, existing software may depend on
TCR_EL1 being 0, and the UNKNOWN value may confuse such software.

Reset TCR_EL1 to well defined value 0 at BL2 entrypoint to achieve
maximum compatibility.

[1] https://developer.arm.com/documentation/ddi0601/2025-06/AArch64-Registers/TCR-EL1--Translation-Control-Register--EL1-

Signed-off-by: Hideyuki Nitta <hideyuki.nitta.jf@hitachi.com>
Signed-off-by: Toshiyuki Ogasahara <toshiyuki.ogasahara.bo@hitachi.com>
Signed-off-by: Yoshifumi Hosoya <yoshifumi.hosoya.wj@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> # update commit message
Change-Id: If3a1d40291b9b9768a8fc55e750bd742f3cc4ddc
---
Note: This is related to MR 25532 , but with reworked commit message
and broken out from the large work-in-progress series.

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fix: remove unused cpu_data related macros

There are no uses for CPU_DATA_PSCI_LOCK_OFFSET so it is removed.

PLAT_PCPU_DATA_SIZE is also unused in ST platforms and causes offsets
to mismatch when t

fix: remove unused cpu_data related macros

There are no uses for CPU_DATA_PSCI_LOCK_OFFSET so it is removed.

PLAT_PCPU_DATA_SIZE is also unused in ST platforms and causes offsets
to mismatch when the linker garbage collects it. It is also removed.

CPU_DATA_PLAT_PCPU_OFFSET is also removed as its only use is in
rcar_lock_get() and related macros which are never called since all
calls of these macros lack an argument.

Change-Id: I883ab58c56b4082e0e8b19a8d8f6186945bcc58e
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>

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chore(docs): drop the "wfi" from `pwr_domain_pwr_down_wfi`

To allow for generic handling of a wakeup, this hook is no longer
expected to call wfi itself. Update the name everywhere to reflect this
e

chore(docs): drop the "wfi" from `pwr_domain_pwr_down_wfi`

To allow for generic handling of a wakeup, this hook is no longer
expected to call wfi itself. Update the name everywhere to reflect this
expectation so that future platform implementers don't get misled.

Change-Id: Ic33f0b6da74592ad6778fd802c2f0b85223af614
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>

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