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The location of the MMIO window is different between a Raspberry Pi 3
and 4: the former has it just below 1GB, the latter below 4GB.
The relative location of the peripherals is mostly compatible though.

To allow sharing code between the two models, let's rename the symbol
used for the MMIO base to the more generic RPI_IO_BASE name.

Change-Id: I3c2762fb30fd56cca743348e79d72ef8c60ddb03
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

To be able to share code more easily between the existing Raspberry Pi 3
and the upcoming Raspberry Pi 4 platform, move some code which is not
board specific into a "common" directory.

Change-Id: I9211ab2d754b040128fac13c2f0a30a5cc8c7f2c
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

The QEMU platform port scans its device tree to advertise PSCI as the
CPU enable method. It does this by scanning *every* node in the DT and
check whether its compatible string starts with "arm,cortex-a". Then it
sets the enable-method to PSCI, if it doesn't already have one.

Other platforms might want to use this functionality as well, so let's
move it out of the QEMU platform directory and make it more robust by
fixing some shortcomings:
- A compatible string starting with a certain prefix is not a good way
to find the CPU nodes. For instance a "arm,cortex-a72-pmu" node will
match as well and is in turn favoured with an enable-method.
- If the DT already has an enable-method, we won't change this to PSCI.

Those two issues will for instance fail on the Raspberry Pi 4 DT.
To fix those problems, we adjust the scanning method:
The DT spec says that all CPU nodes are subnodes of the mandatory
/cpus node, which is a subnode of the root node. Also each CPU node has
to have a device_type = "cpu" property. So we find the /cpus node, then
scan for a subnode with the proper device_type, forcing the
enable-method to "psci".
We have to restart this search after a property has been patched, as the
node offsets might have changed meanwhile.

This allows this routine to be reused for the Raspberry Pi 4 later.

Change-Id: I00cae16cc923d9f8bb96a9b2a2933b9a79b06139
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

To allow sharing the driver between the RPi3 and RPi4, move the random
number generator driver into the generic driver directory.

Change-Id: Iae94d7cb22c6bce3af9bff709d76d4caf87b14d1
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

To allow sharing the driver between the RPi3 and RPi4, move the mailbox
driver into the generic driver directory.

Change-Id: I463e49acf82b02bf004f3d56482b7791f3020bc0
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

With the advent of Raspberry Pi 4 support, we need to separate some
board specific headers between the RPi3 and RPi4.
Rename and move the "rpi3_hw.h" header, so that .c files just include
rpi_hw.h, and automatically get the correct version.

Change-Id: I03b39063028d2bee1429bffccde71dddfe2dcde8
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

With the incoming support for the Raspberry Pi 4 boards, one directory
to serve both versions will not end up well.

Create an additional layer by inserting a "rpi" directory betweeen /plat
and rpi3, so that we can more easily share or separate files between the
two later.

Change-Id: I75adbb054fe7902f34db0fd5e579a55612dd8a5f
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

- Switch uart driver from Mediatek 8250 to TI 16550
- Enable MULTI_CONSOLE
Signed-off-by: kenny liang <kenny.liang@mediatek.com>
Change-Id: Ie3948d9e64d05d29a1f69592792e277b680c4ed4

Some of the platform (ie. Agilex) make use of CCU IPs which will only be
initialized during bl2_el3_early_platform_setup. Any operation to the
cache beforehand will crash the platform. Hence, this will provide an
option to skip the data cache invalidation upon bl2 entry at EL3
Signed-off-by: Hadi Asyrafi <muhammad.hadi.asyrafi.abdul.halim@intel.com>
Change-Id: I2c924ed0589a72d0034714c31be8fe57237d1f06

Disable gic cpu interface for powered down cpu. This patch also removes
core reset during power off as core reset will be done during power on
Signed-off-by: Hadi Asyrafi <muhammad.hadi.asyrafi.abdul.halim@intel.com>
Change-Id: I2ca96d876b6e71e56d24a9a7e184b6d6226b8673

As part of the code refactoring fix the order of the include files
across all the source files.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Change-Id: Ice72f687cc26ee881a9051168149467688100cfb

Make the header guards more generic and contextually remove the
GXBB_BL31_PLAT_PARAM_VAL value that is unused on the GXL platform.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Change-Id: I842fa2e084e71280ae17b39c67877e844821a171

This patch adds support for the Undefined Behaviour sanitizer. There are
two types of support offered - minimalistic trapping support which
essentially immediately crashes on undefined behaviour and full support
with full debug messages.

The full support relies on ubsan.c which has been adapted from code used
by OPTEE.

Change-Id: I417c810f4fc43dcb56db6a6a555bfd0b38440727
Signed-off-by: Justin Chadwell <justin.chadwell@arm.com>

Common ipi_table needs to be initialized before using any
IPI command (i.e send/receive). Move zynqmp ipi config table
initialization from sip_svc_setup() to zynqmp_config_setup().

Change-Id: Ic8aaa0728a43936cd4c6e1ed590e01ba8f0fbf5b
Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.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>

When built for coreboot, we want to enable coreboot library to have
better integration. For example, serial console should be initialized by
coreboot_serial instead of hard-coded values.

Most coreboot configuration will enable memory console, which needs
larger XLAT_TABLES so MAX_XLAT_TABLES is increased; and to support that,
TZRAM_SIZE also need to be enlarged.

Change-Id: I08cf22df2fa26e48284e323d22ad8ce73a6ea803
Signed-off-by: Hung-Te Lin <hungte@chromium.org>

Implement system reset handler.

Change-Id: I535ee414616dde8d2b59dec5a723a540a3a1341d
Signed-off-by: kenny liang <kenny.liang@mediatek.com>

Add plat parameter structs to support BL2 to pass
variable-length, variable-type parameters to BL31.
The parameters are structured as a link list.
During BL31 setup time, we traverse the list to process
each parameter.
Signed-off-by: kenny liang <kenny.liang@mediatek.com>
Change-Id: Ie84cfc9606656fb1d2780a68cadf27e09afa6628

Add GPIO driver.

Change-Id: I8c35ce4ea247f3726081b0bbb95f0930c2b82517
Signed-off-by: kenny liang <kenny.liang@mediatek.com>

- Add PMIC driver
- Add RTC drvier
- Refactor PMIC and RTC to mediatek/common
- Implement system off handler

Change-Id: If76497646ace1b78bc9a5fa0110b652fe512281a
Signed-off-by: kenny liang <kenny.liang@mediatek.com>

- Add DCM driver
- Add SPMC driver
- Implement core and cluster power on/off handlers

Change-Id: I902002f8ea6f98fd73bf259188162b10d3939c72
Signed-off-by: kenny liang <kenny.liang@mediatek.com>

Refine MTK GIC driver.
Remove unused codes.
Signed-off-by: kenny liang <kenny.liang@mediatek.com>
Change-Id: I39e05ce7aa3c257e237fbc8e661cdde65cbcec7c

This patch fixes a coding error, where the size of the protected memory area
was truncated due to an incorrect typecast.

This defect was found by coverity and reported as CID 336781.

Change-Id: I41878b0a9a5e5cd78ef3393fdc7b9ea7f7403ed3
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

Remove the GXBB prefix where needed and add SoC specific prefixes for
GXBB/GXL.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Change-Id: Ic3eb3a77ca2d9c779a9dee5cee786e9c16ecdb27

Remove the GXBB prefix from the code in the common directory and add
SoC-specific prefixes in the SoC specific code.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Change-Id: Ic983ef70b0ef23f95088dd8df488d8c42c3bc030

Add a new aml_* prefix to the SCPI related function calls.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Change-Id: I697812ac1c0df28cbb639a1dc3e838f1107fb739

Make the MHU code AML specific adding a new aml_* prefix and remove the
GXBB prefix from the register names.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Change-Id: I8f20918e29f08542bd71bd679f88e65b4efaa7d2

All the SIP/SVC related code is currently the same between GXL and GXBB.
Rename function names and register names to avoid hardcoding the GXBB
prefix.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Change-Id: I7e58ab68489df8d4762663fc01fb64e6899cc8bf

No need to have a special SoC-specific prefix.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Change-Id: I0da543e7d92d56604e79440a98027ffd9a2eaa59

The header file is shared between all the SoCs. Better avoiding
hardcoding the SoC name in the function names.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Change-Id: I9074871bd1ed8a702c1a656e0f50f2d3c6cb0425

The efuse driver is hardcoding the GXBB prefix. No need to do that since
the driver is shared between multiple SoCs.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Change-Id: I97691b0bbd55170d8216d301a3fc04feb8c2af2e

Fixing at the same time the related register names.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Change-Id: Ib1130d50abe6088f1c0826878d1ae454a0f23008

The code is the common directory is now generic, no need to have the SoC
prefix hardcoded in the function names.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Change-Id: Ied3a5e506b9abd4c2d6f893bafef50019bff24f1

Now that every piece is in place, the makefiles can be refactored and
slightly beautified removing useless and redundant parts.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Change-Id: If74e1909df52d475cf4b0dfed819d07d3a4c85b9

The code is the same between GXBB and GXL. Move it to the common source
directory.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Change-Id: I875689a6fd029971aa755fc2725217e90ed06b6c

As done already for multiple files, move the topology file to the common
directory.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Change-Id: Iaca357a089593ad58c35c05c929239132249dcda

As for most of the Amlogic code, this is common between the Amlogic
SoCs. Move the code to the common directory.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Change-Id: Id3f0073ff1f0b9ddbe964f80303323ee4a2f27b0

The MHU code is shared between all the supported platforms. Move it to
the common directory instead.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Change-Id: Iaf53122866eae85c13f772927d16836dcfa877a3

The efuse code is the same between GXL and GXBB. Move the code to common
directory.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Change-Id: Ie37f21d1907a36292724f1fb645a78041fe4a6b3

The platform macros are shared between all the SoCs. Move it to common
directory.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Change-Id: Ia04c3ffe4d7b068aa701268ed99f69995d8db92b