rcar_gen3: Add M3-W 3.0 support ...

Add support for the M3W 3.0 SoC and synchronize the upstream ATF with
Renesas downstream ATF release v2.0.1.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

rcar_gen3: plat: Prevent PCIe hang during L1X config access ...

In case the PCIe controller receives a L1_Enter_PM DLLP, it will
disable the internal PLLs. The system software cannot predict it
and can attempt to perform device config space access across the
PCIe link while the controller is in this transitional state. If
such condition happens, the PCIe controller register access will
trigger ARM64 SError exception.

This patch adds checks for which PCIe controller is enabled,
checks whether the PCIe controller is in such a transitional
state and if so, first completes the transition and then restarts
the instruction which caused the SError.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

Remove unneeded include paths in PLAT_INCLUDES ...

Also, update platform_def.h guidelines about includes in the porting
guide.

Change-Id: I1ae338c9dd3242b309f6d53687ba2cb755d488c3
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

rcar_gen3: plat: Add missing cpu_on_check() implementation ...

The ATF code fails to build with PMIC_ROHM_BD9571=0, add the missing
function into the PWRC code.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

rcar_gen3: plat: Allow E3 auto-detection ...

Allow auto-detecting E3 when RCAR_LSI is set to RCAR_AUTO.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

rcar_gen3: plat: Drop unused macro ...

The macro is not used, drop it.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

Revert "rcar_gen3: plat: Enable programmable CPU reset address" ...

This reverts commit d48536e,
which misbehaves on R-Car H3 ES2.0. Until the reason for that
misbehavior is understood, revert the commit.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

rcar_gen3: plat: update renesas version to 2.0.0 ...

Update the reported Renesas version to 2.0.0, since the DDR/QoS/PFC
table versions match the ones from that release.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

rcar_gen3: drivers: pwrc: Switch to common delay implementation ...

Replace the ad-hoc implementation of delay in PWRC driver
with common R-Car delay code.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

rcar_gen3: drivers: delay: Rewrite from assembler to C ...

Rewrite the delay code from assembler to C.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

rcar_gen3: plat: Add generic timer init ...

Add code to determine the platform timer frequency and configure
the generic timer accordingly early in BL2.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

rcar_gen3: drivers: cpld: Move rcar_cpld_reset_cpu() into header ...

Move the rcar_cpld_reset_cpu() function into header file and zap the externs.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

rcar_gen3: plat: Dump EL3 interrupt error registers ...

Since the interrupts are handled in EL3, dump the EL3 error registers
in case an error happens.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

rcar_gen3: plat: Enable programmable CPU reset address ...

The reset address is programmable on the R-Car Gen3, enable it.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

rcar_gen3: plat: Disable IPMMU PV0 cache on E3 ...

Disable the IPMMU PV0 cache on E3 rev. 1.x .

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

rcar_gen3: plat: Add E3 rev. 1.1 support ...

Add support for R-Car E3 silicon rev. 1.1

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

rcar_gen3: plat: Add missing platform auto-detection name ...

Add missing TARGET_NAME for the case where RCAR_LSI is set to AUTO,
which is platform auto-detection.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

rcar_gen3: plat: Clean up rcar_pwrc_code_copy_to_system_ram() ...

Call the function only from architecture setup and at the end of
suspend cycle instead of calling it all over the place.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

rcar_gen3: plat: Fix BL2 size check ...

Rename BL2_LIMIT to BL2_IMAGE_LIMIT and BL2_SYSRAM_LIMIT to BL2_LIMIT to
correctly set BL2_LIMIT value. Set correct DEVICE_SRAM_BASE to match the
hardware. Use BL2_END in rcar_configure_mmu_el3() to mark the cacheable
BL2 area.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

rcar_gen3: plat: Staticize memory maps ...

Staticize the platform memory map tables as they are only used within
the platform_common.c file.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

rcar_gen3: plat: Function cleanup ...

Replace foo_t with struct foo.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

rcar_gen3: plat: Fix cache line size ...

The CPU has cache line size of 64 Bytes, fix the cache line size.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

rcar_gen3: plat: Disable SVE ...

Apply 3872fc2d1fc5 ("Do not enable SVE on pre-v8.2 platforms") to
R-Car Gen3 too.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

rcar_gen3: plat: Add missing dependency to rcar_srecord ...

Add missing dependency on the bl2.elf and bl31.elf into the rcar_srecord
target, which uses those ELF files to generate the SRECs.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

rcar_gen3: plat: Rename H3 label ...

Rename the H3 label to avoid confusing clang, which generates an error
if the label is just H3. Rename it to RCARH3.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

Sanitise includes across codebase ...

Enforce full include path for includes. Deprecate old paths.

The following folders inside include/lib have been left unchanged:

- include/lib/cpus/${ARCH}
- include/lib/el3_runtime/${ARCH}

The reason for this change is that having a global namespace for
includes isn't a good idea. It defeats one of the advantages of having
folders and it introduces problems that are sometimes subtle (because
you may not know the header you are actually including if there are two
of them).

For example, this patch had to be created because two headers were
called the same way: e0ea0928d5b7 ("Fix gpio includes of mt8173 platform
to avoid collision."). More recently, this patch has had similar
problems: 46f9b2c3a282 ("drivers: add tzc380 support").

This problem was introduced in commit 4ecca33988b9 ("Move include and
source files to logical locations"). At that time, there weren't too
many headers so it wasn't a real issue. However, time has shown that
this creates problems.

Platforms that want to preserve the way they include headers may add the
removed paths to PLAT_INCLUDES, but this is discouraged.

Change-Id: I39dc53ed98f9e297a5966e723d1936d6ccf2fc8f
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

plat: rcar: Move FDT from x3 to x1 ...

As suggested, pass the FDT to BL 33 via x1 instead of x3 , to be
consistent with the other platforms.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

plat: rcar: Generate FCNL reserved memory node ...

Generate a /reserved-memory node for FCNL in the DT passed to
subsequent stages, so they will know how the FCNL is configured.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

plat: rcar: Generate platform compatible string ...

Generate /compatible string for the platform, so that the subsequent
stages know which platform they are running on. This could be useful
when ie. building U-Boot that contains DTs for multiple platforms and
can thus decide on which platform it is running. This would ultimately
allow single bootloader binary for all Gen3 platforms.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>

plat: rcar: Pass DTB with DRAM layout from BL2 to next stages ...

Pass DTB containing DRAM layout from BL2 to BL33 via register x3, so
that the BL33 can simply consume it and get accurate DRAM layout info.
BL33 is in most usecases U-Boot.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>