Merge changes from topic "allwinner_t507" into integration

* changes:
feat(allwinner): add support for Allwinner T507 SoC
feat(allwinner): add function to detect H616 die variant
feat(allwinne

Merge changes from topic "allwinner_t507" into integration

* changes:
feat(allwinner): add support for Allwinner T507 SoC
feat(allwinner): add function to detect H616 die variant
feat(allwinner): add extra CPU control registers
refactor(allwinner): consolidate sunxi_cfg.h files

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feat(allwinner): add function to detect H616 die variant

Allwinner provides a number of SoCs that use the same die as the H616.
Some of those chips apparently use a slight variation of that die, tha

feat(allwinner): add function to detect H616 die variant

Allwinner provides a number of SoCs that use the same die as the H616.
Some of those chips apparently use a slight variation of that die, that
differs in the way the CPU cores' power and reset controls are handled.
This die variation can be detected by reading the SRAM version register.

Provide a predicate function that returns false if that die variant is
used. Since the CPU power control code is shared for all supported SoCs,
we provide an instance of this function for each SoC, as a static
inline, and return true on all other SoCs. This allows to always use
this function, and still let the compiler optimise away the unneeded
branch for those older SoCs.

This function is unused for now, but is needed in the next patch.

Change-Id: I49e014b895b7e2f55b4e7dc2b3d8aa31cee711b5
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

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Merge changes from topic "allwinner-r329" into integration

* changes:
feat(plat/allwinner): add R329 support
refactor(plat/allwinner): allow custom BL31 offset
refactor(plat/allwinner): allow

Merge changes from topic "allwinner-r329" into integration

* changes:
feat(plat/allwinner): add R329 support
refactor(plat/allwinner): allow custom BL31 offset
refactor(plat/allwinner): allow new AA64nAA32 position
fix(plat/allwinner): delay after enabling CPU power

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refactor(plat/allwinner): allow new AA64nAA32 position

In newer Allwiner SoCs, the AA64nAA32 wires are mapped to a new register
called "General Control Register0" in the manual rather than the
"Clus

refactor(plat/allwinner): allow new AA64nAA32 position

In newer Allwiner SoCs, the AA64nAA32 wires are mapped to a new register
called "General Control Register0" in the manual rather than the
"Cluster 0 Control Register0" in older SoCs.

Now the position of AA64nAA32 (reg and bit offset) is defined in a few
macros instead assumed to be at bit offset 24 of
SUNXI_CPUCFG_CLS_CTRL_REG0.

Change-Id: I933d00b9a914bf7103e3a9dadbc6d7be1a409668
Signed-off-by: Icenowy Zheng <icenowy@sipeed.com>

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Merge pull request #1673 from antonio-nino-diaz-arm/an/headers

Standardise header guards across codebase

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 proje

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>

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Merge pull request #1400 from Andre-ARM/allwinner/v1

Allwinner platform support

allwinner: Add functions to control CPU power/reset

sun50i_cpu_on will be used by the PSCI implementation to initialize
secondary cores for SMP. Unfortunately, sun50i_cpu_off is not usable by
PSCI d

allwinner: Add functions to control CPU power/reset

sun50i_cpu_on will be used by the PSCI implementation to initialize
secondary cores for SMP. Unfortunately, sun50i_cpu_off is not usable by
PSCI directly, because it is not possible for a CPU to use this function
to power itself down. Power cannot be shut off until the outputs are
clamped, and MMIO does not work once the outputs are clamped.

But at least CPU0 can shutdown the other cores early in the BL31 boot
process and before shutting down the system.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

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