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SPM: Remove unnecessary register save

Series of new patches for STM32MP1

docs: Update note about plat/arm in Porting Guide

Since commit 01fc1c24

 ("BL31: Use helper function to save registers
in SMC handler") all the general-purpose registers are saved when
entering EL3. It isn't needed to save them here.

Change-Id: Ic540a5441b89b70888da587ab8fc3b2508cef8cc
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Add the device tree files to support the 2 discovery boards: DK1 & DK2.

Change-Id: I90b4797dc69bd0aab1b643a72c932ead48a03c1f
Signed-off-by: Yann Gautier <yann.gautier@st.com>

Remove useless private structure in function prototypes.
Add a reference counter on clocks.
Prepare for future secured/shared/non-secured clocks.

Change-Id: I3dbed81721da5ceff5e10b2c4155b1e340c036ee
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>

This change makes the platform to panic in case of peripheral reset
resource malfunction.

Change-Id: I17eb9cb045b78a4e5142a8c33b744e84992d732a
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Nicolas LE BAYON <nicolas.le.bayon@st.com>

PWR, RCC, DDRPHYC & DDRCTRL addresses can be retrieved from device tree.
Platform asserts the value read from the DT are the SoC addresses.

Change-Id: I43f0890b51918a30c87ac067d3780ab27a0f59de
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Nicolas LE BAYON <nicolas.le.bayon@st.com>

Create a new file stm32mp_clkfunc.c to put functions that could be common
between several platforms.

Change-Id: Ica915c796b162b2345056b33328acc05035a242c
Signed-off-by: Yann Gautier <yann.gautier@st.com>

Regulator configuration at boot takes more information from DT.
I2C configuration from DT is done in I2C driver.
I2C driver manages more transfer modes.
The min voltage of buck1 should also be increased to 1.2V,
else the platform does not boot.

Heavily modifies stm32_i2c.c since many functions move inside the source
file to remove redundant declarations.

Change-Id: I0bee5d776cf3ff15e687427cd6abc06ab237d025
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>

Remove the previously use function: get_timer, and use new functions
timeout_init_us and timeout_elapsed.

Change-Id: I4e95b123648bff7ca91e40462a2a3ae24cfe1697
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Nicolas LE BAYON <nicolas.le.bayon@st.com>

timeout_init_us(some_timeout_us); returns a reference to detect
timeout for the provided microsecond delay value from current time.

timeout_elapsed(reference) return true/false whether the reference
timeout is elapsed.

This change is inspired by the OP-TEE OS timeout resources [1].

 [1] https://github.com/OP-TEE/optee_os/blob/3.4.0/core/arch/arm/include/kernel/delay.h#L45



Change-Id: Id81ff48aa49693f555dc621064878417101d5587
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>

Include all RCC, clocks and reset headers from stm32mp1_def.h
which if exported to the firmware through platform_def.h.
The same dependency removal is done in common code as well.
Some useless includes are also removed in stm32_sdmmc2 driver.

Change-Id: I731ea5775c3fdb7f7b0c388b93923ed5e84b8d3f
Signed-off-by: Yann Gautier <yann.gautier@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>

drivers: partition: Add simple MBR partition entries support

plat: intel: Fix faulty DDR calibration value

hikey960: enable IOMCU DMAC

Platforms are not allowed to use any file inside include/plat/arm or
plat/arm to prevent dependencies between Arm platforms and non-Arm
platforms.

Change-Id: I6dc336ab71134c8d2758761fac0e4716e2d7e6ff
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

imx: warp7: Migrate to MULTI_CONSOLE_API

TI-SCI asynchronous power down sequencing

A DDR calibration value is missing write mask, causing ECC DDR calibration
to fail. This patch addresses the issue. ECC should also be scrubbed before
MMU initializes, thus the scrubbing is moved to ddr intialization phase.
Signed-off-by: Loh Tien Hock <tien.hock.loh@intel.com>

This is to add simple MBR partition entry support. This will read all four
MBR partition into the partition list, and the partition type will be saved
in the list.name[0] entry.
Signed-off-by: Loh Tien Hock <tien.hock.loh@intel.com>

Fix CPU headers' definitions

Sanitize SPD include paths

doc: Fix broken external links

Commit 09d40e0e

 ("Sanitise includes across codebase") modified the
include paths of the TSP includes but it didn't remove the include path
from the makefile or did the same for TLK. This patch does the remaining
work.

Change-Id: Iecee2e88fabcd06989d35568c3a4c1f4e7d93572
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

This commit migrates to MULTI_CONSOLE_API for IMX Warp7 board.
We also rename the functions in imx_uart driver to more specific one.
Signed-off-by: Ying-Chun Liu (PaulLiu) <paulliu@debian.org>

ATF should be the only host needing to control a processor that it has
started. ATF will need this control to stop the core later. Do not
relinquish control of a core after starting the core.
Signed-off-by: Andrew F. Davis <afd@ti.com>

Now that we have non-blocking TI-SCI functions we can initiate the shutdown
sequence from the PSCI handler without needing the ti_sci_proc_shutdown
helper function, which is removed. This gives us the greater control and
flexibility that will be needed when cluster power down sequences are added.
Signed-off-by: Andrew F. Davis <afd@ti.com>

Most TI-SCI functions request an ACK and wait until it is received. For
some power sequence tasks we cannot wait but instead queue messages
asynchronously. Three messages have been identified that will need to
be used in this way. Add non-waiting versions of these functions.
Signed-off-by: Andrew F. Davis <afd@ti.com>

Currently almost all TI-SCI messages request and check for an ACK from
the system firmware. Move this into a common place to remove the same
from each function.
Signed-off-by: Andrew F. Davis <afd@ti.com>

When a device is requested with TI-SCI its control can be made exclusive
to the requesting host. This was currently the default but is not what
is needed most of the time. Add _exclusive versions of the request
functions and remove the exclusive flag from the default version.
Signed-off-by: Andrew F. Davis <afd@ti.com>

The raw get and set state functions for both devices and clocks
are only meant for use internal to the TI-SCI driver, the same
functionality is available from the other API that call into
these. Remove them from the external interface and make them
static scope to the driver.
Signed-off-by: Andrew F. Davis <afd@ti.com>

There exists a third DMA controller on the hi3660
SoC called the IOMCU DMAC. This controller is used by
peripherals like SPI2 and UART3. Initialize channels 4-7
as non-secure, while 0-3 remain reserved and secure.
Signed-off-by: Ryan Grachek <ryan@edited.us>

There are some incorrect casts and some missing casts in the headers.
This patch fixes the ones that were 64-bit or 32-bit wide wrongly and
adds casts where they were missing.

Note that none of the changes of the patch actually changes the values
of the definitions. This patch is just for correctness.

Change-Id: Iad6458021bad521922ce4f91bafff38b116b49eb
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

There are some values that should be 64-bit immediates but that resolve
to 0 because the type of the value is 32-bit wide. This patch casts the
expressions to 64-bit before the shift so that the definition has the
correct value.

The definitions are only used in assembly so far, so the code is not
actually affected by this bug. The assembler treats all values as 64-bit
values, so there are no overflows.

Change-Id: I965e4be631c1d28787c0913661d224c82a6b9155
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

Make setjmp/longjmp compliant with the C standard and move them to libc

maintainers: Fix broken links to some Github accounts

Miscellaneous documentation fixes