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Previously, the A64/H5 and H6 platforms' PMIC setup code was entirely
independent. However, some H6 boards also need early regulator setup.

Most of the register interface and all of the device tree traversal code
can be reused between the AXP803 and AXP805. The main difference is the
hardware bus interface, so that part is left to the platforms. The
remainder is moved into a driver.

I factored out the bits that were obviously specific to the AXP803;
additional changes for compatibility with other PMICs can be made as
needed.

The only functional change is that rsb_init() now checks the PMIC's chip
ID register against the expected value. This was already being done in
the H6 version of the code.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: Icdcf9edd6565f78cccc503922405129ac27e08a2

This simplifies the code a bit. Verified to produce the same binary.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: Ie1ec1ce2ea39c46525840906826c90a8a7eff287

As of a561e41b

 ("allwinner: power: add enable switches for DCDC1/5")
there are no longer regulators without an enable register provided.
Since it seems reasonable that this will continue to be the case, drop
the check.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: Icd7ec26fc6450d053e6e6d855fc16229b1d65a39

should_enable_regulator() is already checked in the regulators subnode
loop before setup_regulator() is called, so there's no need to check it
again here.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: Idb8b8a6e435246f4fb226bc84813449d80a0a977

These are used by the PMIC setup code, which runs during BL31
initialization, and the PSCI shutdown code, also a part of BL31.
They can't be needed before BL31, or it wouldn't be possible to boot.
Allwinner platforms don't generally build anything but BL31 anyway, but
this change improves clarity and consistency with allwinner-common.mk.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: I24f1d9ca8b4256e44badf5218d04d8690082babf

The function is only used in this file, and it doesn't make sense for it
to be used anywhere else.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: Iab18f082911edcdbc37ceeaff8c512be68e0cb0f

The action of last resort isn't going to change between SoCs. This moves
that code back to the PSCI implementation, where it more obviously
matches the code in sunxi_system_reset().

The two error messages say essentially the same thing anyway.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: I62ac35fdb5ed78a016e9b18281416f1dcea38a4a

- Check the return value from sunxi_init_platform_r_twi().
- Print the PMIC banner before doing anything that might fail.
- Remove double prefixes in error messages.
- Consistently omit the trailing period.
- No need to print the unknown SoC's ID, since we already did that
  earlier in bl31_platform_setup().
- On the other hand, do print the ID of the unknown PMIC.
- Try to keep the messages concise, as the large string size in these
  files was causing the firmware to spill into the next page.
- Downgrade the banner from NOTICE to INFO. It's purely informational,
  and people should be using debug builds on untested hardware anyway.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: Ib909408a5fdaebe05470fbce48d245dd0bf040eb

Ensure that the default (zero) value represents the case where we take
no action. Previously, if a PLAT=sun50i_a64 build was booted on an
unknown SoC ID, it would be treated as an H5 at shutdown.

This removes some duplicate code and fixes error propagation on H6.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: I4e51d8a43a56eccb0d8088593cb9908e52e782bc

The clock must be running for the module to be reset.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: Ic8fafc946f3a1a697174b91288e357ffa033ab9a

* changes:
  S-EL2 Support: Check for AArch64
  Add support for enabling S-EL2

* changes:
  docs: tegra: add support for Tegra194 class of SoCs
  Tegra194: smmu: add support for backup multiple smmu regs
  Tegra194: introduce tegra_mc_def.h
  Tegra194: 40-bit wide memory address space
  Tegra194: psci: rename 'percpu_data' variable

When a Firmware is complied as Position Independent Executable it needs
to request GDT fixup by passing size of the memory region to
el3_entrypoint_common macro.
The Global descriptor table fixup will be done early on during cold boot
process of primary core.

Currently only BL31 supports PIE, but in future when BL2_AT_EL3 will be
compiled as PIE, it can simply pass fixup size to the common el3
entrypoint macro to fixup GDT.

The reason for this patch was to overcome the bug introduced by SHA
330ead80

 which called fixup routine for each core causing
re-initializing of global pointers thus overwriting any changes
done by the previous core.

Change-Id: I55c792cc3ea9e7eef34c2e4653afd04572c4f055
Signed-off-by: Manish Pandey <manish.pandey2@arm.com>

remove plat_sip_svc.c and plat_psci.c in stratix 10 platform directory
as both has been refactored to common directory for sharing with agilex
platform
Signed-off-by: Hadi Asyrafi <muhammad.hadi.asyrafi.abdul.halim@intel.com>
Change-Id: I395fed66408f536e8fefd637681e742c63621818

This function scans a string backwards from the end for the first
instance of a character.

Change-Id: I46b21573ed25a0ff222eac340e1e1fb93b040763
Signed-off-by: Ambroise Vincent <ambroise.vincent@arm.com>

This patch adds the Tegra194 SoC information to the nvidia-tegra.rst
file.
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Change-Id: Id649a5ff1b3f70eeee34b508edb7965e7b7a2454

Tegra194 supports multiple SMMU blocks. This patch adds support to
save register values for SMMU0 and SMMU2, before entering the System
Suspend state.

Change-Id: I3a376cdb606ea057ad7047714717245f9dced5cf
Signed-off-by: Pritesh Raithatha <praithatha@nvidia.com>

This patch introduces memory controller register defines
for Tegra194 platforms.

Change-Id: I6596341ae817b6cec30cb74d201ad854a0c8c0a6
Signed-off-by: Pritesh Raithatha <praithatha@nvidia.com>

This patch updates the memory address space, physical and virtual,
to be 40-bits wide for all Tegra194 platforms.

Change-Id: Ie1bcdec2c4e8e15975048ce1c2a31c2ae0dd494c
Signed-off-by: Steven Kao <skao@nvidia.com>

The per CPU wake times are saved in an array called 't19x_percpu_data'. But,
there is one instance in the code where the name of the variable is misspelt.

This patch fixes this typographical error to fix compilation errors.
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Change-Id: I52f5f0b150c51d8cc38372675415dec7944a7735

Previously the .init section was created even when the reclaim flag was
manually set to 0.

Change-Id: Ia9e7c7997261f54a4eca725d7ea605192f60bcf8
Signed-off-by: Ambroise Vincent <ambroise.vincent@arm.com>
	       Zelalem Aweke <zelalem.aweke@arm.com>

* changes:
  Add memory_map tools as a target for Make
  tools: Add show_memory script

Currently tb_fw_cfg_dtb size is fixed to max, which is generally a page
(but depend on the platform). Instead, read the actual size of the dtb
with the libfdt "fdt_totalsize" function.
This avoid flushing extra memory after updating the dtb with mbedtls
heap information when shared heap is used.

Change-Id: Ibec727661116429f486464a0c9f15e9760d7afe2
Signed-off-by: Louis Mayencourt <louis.mayencourt@arm.com>

Check that entry point information requesting S-EL2
has AArch64 as an execution state during context setup.
Signed-off-by: Artsem Artsemenka <artsem.artsemenka@arm.com>
Change-Id: I447263692fed6e55c1b076913e6eb73b1ea735b7

This patch adds support for enabling S-EL2 if this EL is specified in the entry
point information being used to initialise a secure context. It is the caller's
responsibility to check if S-EL2 is available on the system before requesting
this EL through the entry point information.
Signed-off-by: Achin Gupta <achin.gupta@arm.com>
Change-Id: I2752964f078ab528b2e80de71c7d2f35e60569e1

* changes:
  libc: Consolidate the size_t and NULL definitions
  libc: Consolidate unified definitions
  libc: Unify intmax_t and uintmax_t on AArch32/64

Consolidate the definition of size_t to one header per AArch, and
the definition of NULL to one header
Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
Change-Id: Iecfbad2cf360cfb705ce7aaa981700fd16219b82

As supporting architectures aside from AArch32 and AArch64 is not a
concern, keeping identical definitions in two places for a large part
of the libc seems counterproductive

The int128 types were left un-unified as __int128 is not supported by
gcc on AArch32
Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
Change-Id: Idf08e6fab7e4680d9da62d3c57266ea2d80472cf

Conceptually, these are supposed to be the largest integers
representable in C, but GCC and Clang define them as long long for
compatibility.
Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
Change-Id: I7c0117f3be167342814d260a371889120dcf6576

* changes:
  Reduce space lost to object alignment
  imx: Fix multiple definition of ipc_handle
  imx: Fix missing inclusion of cdefs.h

* changes:
  intel: Refactor common platform code [4/5]
  intel: Refactor common platform code [3/5]
  intel: Refactor common platform code [2/5]
  intel: Refactor common platform code [1/5]