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>

stm32mp1: remove useless compilation flags ...

On AARCH32, thumb is used by default, no need to redefine it.
As all our binaries are compiled with thumb, interwork is not needed.
The binaries compiled with or without those flags are the same,
except of course for the date.

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

Merge pull request #1700 from jwerner-chromium/JW_crashfix ...

MULTI_CONSOLE_API fixes and cleanups

drivers/console: Link console framework code by default ...

This patch makes the build system link the console framework code by
default, like it already does with other common libraries (e.g. cache
helpers). This should not make a difference in practice since TF is
linked with --gc-sections, so the linker will garbage collect all
functions and data that are not referenced by any other code. Thus, if a
platform doesn't want to include console code for size reasons and
doesn't make any references to console functions, the code will not be
included in the final binary.

To avoid compatibility issues with older platform ports, only make this
change for the MULTI_CONSOLE_API.

Change-Id: I153a9dbe680d57aadb860d1c829759ba701130d3
Signed-off-by: Julius Werner <jwerner@chromium.org>

stm32mp: check stm32_sdmmc2_mmc_init return ...

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

stm32mp1: use MULTI_CONSOLE_API ...

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

stm32mp1: correct some static analysis tools issues ...

These issues wer found by sparse:

drivers/st/clk/stm32mp1_clk.c:1524:19:
 warning: incorrect type in assignment (different base types)
    expected restricted fdt32_t const [usertype] *pkcs_cell
    got unsigned int const [usertype] *

plat/st/stm32mp1/plat_image_load.c:13:6:
 warning: symbol 'plat_flush_next_bl_params' was not declared.
 Should it be static?
plat/st/stm32mp1/plat_image_load.c:21:16:
 warning: symbol 'plat_get_bl_image_load_info' was not declared.
 Should it be static?
plat/st/stm32mp1/plat_image_load.c:29:13:
 warning: symbol 'plat_get_next_bl_params' was not declared.
 Should it be static?

plat/st/stm32mp1/bl2_io_storage.c:40:10:
 warning: symbol 'block_buffer' was not declared. Should it be static?

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

Standardise header guards across codebase ...

All identifiers, regardless of use, that start with two underscores are
reserved. This means they can't be used in header guards.

The style that this project is now to use the full name of the file in
capital letters followed by 'H'. For example, for a file called
"uart_example.h", the header guard is UART_EXAMPLE_H.

The exceptions are files that are imported from other projects:

- CryptoCell driver
- dt-bindings folders
- zlib headers

Change-Id: I50561bf6c88b491ec440d0c8385c74650f3c106e
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

stm32mp1: update platform files to use MMC devices ...

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

stm32mp1: add sdmmc2 driver ...

This driver is for the STMicroelectronics sdmmc2 IP
which is in STM32MP1 SoC.
It uses the MMC framework, and can address either eMMC or SD-card.

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

stm32mp1: Migrate to new interfaces ...

- 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>

layerscape: stm32mp1: Migrate to enable_mmu_svc_mon() ...

Change-Id: I3d16b247a0fa457e6293e2d2c4503dfde1e51c1d
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

stm32mp1: Link BL2, BL32 and DTB in one binary ...

platform.mk is updated to have compilation rules for DTB, stm32image tool,
and the concatenation of the 3 binaries.
A new linker script and an assembly file are added to manage this.

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>

stm32mp1: Add BL32 SP_min secure monitor ...

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>

stm32mp1: Add DDR support and its security with TZC400 ...

The DDR driver is under dual license, BSD and GPLv2.
The configuration parameters are taken from device tree.

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>

stm32mp1: Add PMIC support ...

If a PMIC companion chip is present on board, it has to be configured
for regulators supplies.
This check is done with board DT configuration.

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Pascal Paillet <p.paillet@st.com>

stm32mp1: Add console support ...

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

stm32mp1: save boot information in backup registers ...

This will be used by BL33 to get boot device and instance.

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>

stm32mp1: Add GPIO support ...

The management of pinctrl nodes of device tree is also added.

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Mathieu Belou <mathieu.belou@st.com>
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>

stm32mp1: Add clock and reset support ...

The clock driver is under dual license, BSD and GPLv2.
The clock driver uses device tree, so a minimal support for this is added.
The required files for driver and DTS files are in include/dt-bindings/.

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>

Introduce STMicroelectronics STM32MP1 platform ...

STM32MP1 is a microprocessor designed by STMicroelectronics,
based on a dual Arm Cortex-A7.
It is an Armv7-A platform, using dedicated code from TF-A.

STM32MP1 uses BL2 compiled with BL2_AT_EL3.

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Mathieu Belou <mathieu.belou@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>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Pascal Paillet <p.paillet@st.com>