stm32mp1: update device tree and gpio functions ...

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>

drivers: st: update drivers code ...

Reword some traces.
Use uintptr_t where required.
Reduce scope of variables.
Improve io_stm32image algo.
Complete some IP registers definitions.
Add failure on supported DDR (stm32mp1_ddr_init()).
Fix cache flush on cache disable (stm32mp1_ddr_setup).

Change-Id: Ie02fa71e02b9d69abc807fd5b7df233e5be6668c
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>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>

drivers: st: pmic: update stpmic1 driver ...

Change-Id: I4a1b281925e0a3a1e2a34b3e363537e4a7f13823
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>

stm32mp1: update device tree files ...

The drivers are also updated to reflect the changes.
Set RCC as non-secure.

Change-Id: I568fa1f418355830ad1d4d1cdcdb910fb362231b
Signed-off-by: Yann Gautier <yann.gautier@st.com>

stm32mp1: rename stpmu1 to stpmic1 ...

This is the correct name of the IP.
Rename stm32mp1_pmic files to stm32mp_pmic.

Change-Id: I238a7d1f9a1d099daf7788dc9ebbd3146ba2f15f
Signed-off-by: Yann Gautier <yann.gautier@st.com>

drivers: st: move i2c driver in its own folder ...

The driver could be used for other devices than PMIC.

Change-Id: I4569e7c0028e52e1ff2fe9d38f11de11e95d1897
Signed-off-by: Yann Gautier <yann.gautier@st.com>

stm32mp1: do not include platform header files directly in drivers ...

Instead, only platform_def.h is included.
The required files to be included are added in stm32mp1_def.h.

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

drivers: st: mmc: improve error cases in send_cmd function ...

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

drivers: st: uart: remove old API ...

Now that MULTI_CONSOLE_API is enabled for the STM32MP1 platform,
we can remove the non MULTI_CONSOLE_API parts in the driver.

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

drivers: st: update console driver to support MULTI_CONSOLE_API ...

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

stm32mp1: add a new file for UART registers definition ...

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>

stm32mp1: add an IO to read MMC devices ...

Whereas the GPT table is read with io_block, the binaries to be loaded
(e.g. BL33) cannot use it, as it is not suitable to read them block by
block, or the boot time would be very bad.

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

stm32mp1: add an IO to read STM32IMAGE binaries ...

This IO is required to read binaries with STM32 header.
This header is added with the stm32image tool.

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>

libc: Use printf and snprintf across codebase ...

tf_printf and tf_snprintf are now called printf and snprintf, so the
code needs to be updated.

Change-Id: Iffeee97afcd6328c4c2d30830d4923b964682d71
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Replace stdio.h functions by TF functions ...

Functions provided by stdio.h such as printf and sprintf are available
in the codebase, but they add a lot of code to the final image if they
are used:

- AArch64: ~4KB
- AArch32: ~2KB in T32, ~3KB in A32

tf_printf and tf_snprintf are a lot more simple, but it is preferable
to use them when possible because they are also used in common code.

Change-Id: Id09fd2b486198fe3d79276e2c27931595b7ba60e
Acked-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.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: 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>