This change implements platform services for stm32mp1 to expose clock
and reset controllers over SCMI clock and reset domain protocols
in sp_min firmware.

Requests execution use a fastcall SMC context using a SiP function ID.
The setup allows the create SCMI channels by assigning a specific
SiP SMC function ID for each channel/agent identifier defined. In this
change, stm32mp1 exposes a single channel and hence expects single
agent at a time.

The input payload in copied in secure memory before the message
in passed through the SCMI server drivers. BL32/sp_min is invoked
for a single SCMI message processing and always returns with a
synchronous response message passed back to the caller agent.

This change fixes and updates STM32_COMMON_SIP_NUM_CALLS that was
previously wrongly set 4 whereas only 1 SiP SMC function ID was to
be counted. STM32_COMMON_SIP_NUM_CALLS is now set to 3 since the
2 added SiP SMC function IDs for SCMI services.

Change-Id: Icb428775856b9aec00538172aea4cf11e609b033
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>

* changes:
  stm32mp1: shared resources: apply registered configuration
  stm32mp1: shared resources: count GPIOZ bank pins
  stm32mp1: shared resources: define resource identifiers

SCMI shared memory is used to exchange message payloads between
secure SCMI services and non-secure SCMI agents. It is mapped
uncached (device) mainly to conform to existing support in
the Linux kernel. Note that executive messages are mostly short
(few 32bit words) hence not using cache will not penalize much
performances.

Platform stm32mp1 shall configure ETZPC to harden properly the
secure and non-secure areas of the SYSRAM address space, that before
CPU accesses the shared memory when mapped non-secure.

This change defines STM32MP_SEC_SYSRAM_BASE/STM32MP_SEC_SYSRAM_SIZE and
STM32MP_NS_SYSRAM_BASE/STM32MP_NS_SYSRAM_SIZE.

Change-Id: I71ff02a359b9668ae1c5a71b5f102cf3d310f289
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>

BL32/SP_MIN configures platform security hardening from the shared
resources driver.  At the end of SP_MIN initialization, all shared
resources shall be assigned to secure or non-secure world by
drivers. A lock prevent from further change on the resource
assignation. By definition, resources not registered are assign
to non-secure world since not claimed by any component on the BL.

No functional change as all resources are currently in state
SHRES_UNREGISTERED hence assigned to non-secure world as prior
this change in stm32mp1_etzpc_early_setup() and
sp_min_platform_setup().

Change-Id: Ic41fab47216c3b8b7a6a75b8358cfcec411ed941
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>

Use ETZPC driver to configure secure aware interfaces to assign
them to non-secure world. Sp_min also configures BootROM resources
and SYSRAM to assign both to secure world only.

Define stm32mp15 SoC identifiers for the platform specific DECPROT
instances.

Change-Id: I3bec9f47b04bcba3929e4df886ddb1d5ff843089
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>

Since now the generic console_t structure holds the UART base address as
well, let's use that generic location and drop the UART driver specific
data structure at all.

Change-Id: Iea6ca26ff4903c33f0fad27fec96fdbabd4e0a91
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

The STM32 console driver was pre-pending '\r' before '\n'.
It is now managed by the framework with the flag:
CONSOLE_FLAG_TRANSLATE_CRLF.
Remove the code in driver, and add the flag for STM32MP1.

Change-Id: I5d0d5d5c4abee0b7dc11c2f8707b1b5cf10149ab
Signed-off-by: Yann Gautier <yann.gautier@st.com>

The runtime console is only kept in DEBUG configuration.

Change-Id: I0447dfcacb9a63a12bcdab7c55584d70c3220e5b
Signed-off-by: Yann Gautier <yann.gautier@st.com>

This change enhances performance and security in BL32 stage.

Change-Id: I64df5995fc6b04f6cf42d6a00a6d3d0f602b5407
Signed-off-by: Yann Gautier <yann.gautier@st.com>

Introduce driver for STM32 IWDG peripheral (Independent Watchdog).
It is configured according to device tree content and should be enabled
from there.
The watchdog is not started by default. It can be started after an HW
reset if the dedicated OTP is fused.

The watchdog also needs to be frozen if a debugger is attached.
This is done by configuring the correct bits in DBGMCU.
This configuration is allowed by checking BSEC properties.

An increase of BL2 size is also required when adding this new code.

Change-Id: Ide7535d717885ce2f9c387cf17afd8b5607f3e7f
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>

Mainly remove suffix 1 from prefix stm32mp1 in several macros and functions
that can be used in drivers shared by different platforms.

Change-Id: I2295c44f5b1edac7e80a93c0e8dfd671b36e88e7
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>

Some parts of code could be shared with platform derivatives,
or new platforms.
A new folder plat/st/common is created to put common parts.

stm32mp_common.h is a common API aggregate.

Remove some casts where applicable.
Fix some types where applicable.
Remove also some platform includes that are already in stm32mp1_def.h.

Change-Id: I46d763c8d9e15732d1ee7383207fd58206d7f583
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>

Change-Id: I604b38ffa40e04c6e2aaede28e9f61335bbffdc0
Signed-off-by: Yann Gautier <yann.gautier@st.com>

This service, called with SMC from Non secure world, allows access to
some configurations saved in OTP fuses.

Change-Id: I92ba5614b2cb4a03260119e2cf74f2cd626a3431
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Mathieu Belou <mathieu.belou@st.com>
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>

Change fdt_check_status function to fdt_get_status.
Update GPIO defines.
Move some functions in gpio driver, instead of dt helper file.
Add GPIO bank helper functions.
Use only one status field in dt_node_info structure including both status
and secure status.

Change-Id: I34f93408dd4aac16ae722f564bc3f7d6ae978cf4
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>

Move print_reset_reason function to bl2_plat_setup.c
Put __unused attribute for unused bl2_el3_early_platform_setup args.
Rename dt_dev_info to dt_uart_info.
Put MMU configuration earlier.
Remove unused macros.
Use U() or ULL() macros where needed.
Use device tree to configure GIC.
Use GIC helper function.

Change-Id: I34620c421cc6967a668bca318f7689fd74fa78a6
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>

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>

Signed-off-by: Yann Gautier <yann.gautier@st.com>

- Remove references to removed build options.
- Remove useless include to removed file.

Change-Id: I256da4135ac0a6ff80d4f211689ab4d08436206f
Tested-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Mathieu Belou <mathieu.belou@st.com>
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>