TF-A GICv3 driver: Separate GICD and GICR accessor functions ...

This patch provides separation of GICD, GICR accessor
functions and adds new macros for GICv3 registers access
as a preparation for GICv3.1 and GICv4 support.
NOTE: Platforms need to modify to include both
'gicdv3_helpers.c' and 'gicrv3_helpers.c' instead of the
single helper file previously.

Change-Id: I1641bd6d217d6eb7d1228be3c4177b2d556da60a
Signed-off-by: Alexei Fedorov <Alexei.Fedorov@arm.com>

uniphier: shrink UNIPHIER_ROM_REGION_SIZE ...

Currently, the ROM region is needlessly too large.

The on-chip SRAM region of the next SoC will start from 0x04000000,
and this will cause the region overlap.

Mapping 0x04000000 for the ROM is enough.

Change-Id: I85ce0bb1120ebff2e3bc7fd13dc0fd15dfff5ff6
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

uniphier: prepare uniphier_soc_info() for next SoC ...

The revision register address will be changed in the next SoC.

The LSI revision is needed in order to know where the revision
register is located, but you need to read out the revision
register for that. This is impossible.

We need to know the revision register address by other means.
Use BL_CODE_BASE, where the base address of the TF image that is
currently running. If it is bigger than 0x80000000 (i.e. the DRAM
base is 0x80000000), we assume it is a legacy SoC.

Change-Id: I9d7f4325fe2085a8a1ab5310025e5948da611256
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

Merge changes from topic "console_t_cleanup" into integration ...

* changes:
  marvell: Consolidate console register calls
  uniphier: Use generic console_t data structure
  spe: Use generic console_t data structure
  LS 16550: Use generic console_t data structure
  stm32: Use generic console_t data structure
  rcar: Use generic console_t data structure
  a3700: Use generic console_t data structure
  16550: Use generic console_t data structure
  imx: Use generic console_t data structure

Merge "pl011: Use generic console_t data structure" into integration

Merge "uniphier: make on-chip SRAM region configurable" into integration

pl011: Use generic console_t data structure ...

Since now the generic console_t structure holds the UART base address as
well, let's use that generic location and drop the UART driver specific
data structure at all.

Change-Id: I7a23327394d142af4b293ea7ccd90b843c54587c
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

uniphier: Use generic console_t data structure ...

Since now the generic console_t structure holds the UART base address as
well, let's use that generic location and drop the UART driver specific
data structure at all.

Change-Id: Ia9d996bb45ff3a7f1b240f12fd75805b48a048e9
Signed-off-by: Andre Przywara <andre.przywara@arm.com>

Merge changes from topic "uniphier" into integration ...

* changes:
  uniphier: make I/O register region configurable
  uniphier: make PSCI related base address configurable
  uniphier: make counter control base address configurable
  uniphier: make UART base address configurable
  uniphier: make pinmon base address configurable
  uniphier: make NAND controller base address configurable
  uniphier: make eMMC controller base address configurable

Merge changes from topic "uniphier" into integration ...

* changes:
  uniphier: extend boot device detection for future SoCs
  uniphier: change block_addressing flag to bool
  uniphier: change the return value type of .is_usb_boot() to bool

uniphier: make on-chip SRAM region configurable ...

The on-chip SRAM region will be changed in the next SoC. Make it
configurable. Also, split the mmap code into a new helper function
so that it can be re-used for another boot mode.

Change-Id: I89f40432bf852a58ebc9be5d9dec4136b8dc010b
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

uniphier: make I/O register region configurable ...

The I/O register region will be changed in the next SoC. Make it
configurable.

Change-Id: Iec0cbd1ef2d0703ebc7c3d3082edd73791bbfec9
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

uniphier: extend boot device detection for future SoCs ...

The next SoC will have:
  - No boot swap
  - SD boot
  - No USB boot

Add new fields to handle this.

Change-Id: I772395f2c5dfc612e575b0cbd0657a5fa9611c25
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

uniphier: make PSCI related base address configurable ...

The register base address will be changed in the next SoC. Make it
configurable.

Change-Id: Ibe07bd9db128b0f7e629916cb6ae21ba7984eca9
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

uniphier: change block_addressing flag to bool ...

The flag, uniphier_emmc_block_addressing, is boolean logic, so
"bool' is more suitable.

uniphier_emmc_is_over_2gb() is not boolean - it returns 1 / 0
depending on the card density, or a negative value on failure.
Rename it to make it less confusing.

Change-Id: Ia646b1929147b644e0df07c46b54ab80548bc3bd
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

uniphier: make counter control base address configurable ...

The register base will be changed in the next SoC. Make it
configurable.

Change-Id: I4a7cf85fe50e4d71db58a3372a71774e43193bd3
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

uniphier: change the return value type of .is_usb_boot() to bool ...

This is boolean logic, so "bool" is more suitable.

Change-Id: I439c5099770600a65b8f58390a4c621c2ee487a5
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

uniphier: make UART base address configurable ...

The next SoC supports the same UART, but the register base will be
changed. Make it configurable.

Change-Id: Ida5c9151b2f3554afd15555b22838437eef443f7
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

uniphier: make pinmon base address configurable ...

The register base will be changed in the next SoC. Make it
configurable.

Change-Id: I9fbb6bdd1cf06207618742d4ad7970d911c9bc26
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

uniphier: make NAND controller base address configurable ...

The next SoC does not support the NAND controller, but make the base
address configurable for consistency and future proof.

Change-Id: I776e43ff2b0408577919b0b72849c3e1e5ce0758
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

uniphier: make eMMC controller base address configurable ...

The next SoC supports the same eMMC controller, but the register
base will be changed. Make it configurable.

Change-Id: I00cb5531bc3d8d49357ad5e922cdd3d785355edf
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

drivers/mhu: derive doorbell base address ...

In order to allow the MHUv2 driver to be usable with multiple MHUv2
controllers, use the base address of the controller from the platform
information instead of the MHUV2_BASE_ADDR macro.

Change-Id: I4dbab87b929fb0568935e6c8b339ce67937f8cd1
Signed-off-by: Aditya Angadi <aditya.angadi@arm.com>

Merge "Use correct type when reading SCR register" into integration

Use correct type when reading SCR register ...

The Secure Configuration Register is 64-bits in AArch64 and 32-bits in
AArch32. Use u_register_t instead of unsigned int to reflect this.

Change-Id: I51b69467baba36bf0cfaec2595dc8837b1566934
Signed-off-by: Louis Mayencourt <louis.mayencourt@arm.com>

uniphier: make all BL images completely position-independent ...

This platform supports multiple SoCs. The next SoC will still keep
quite similar architecture, but the memory base will be changed.

The ENABLE_PIE improves the maintainability and usability. You can reuse
a single set of BL images for other SoC/board without re-compiling TF-A
at all. This will also keep the code cleaner because it avoids #ifdef
around various base addresses.

By defining ENABLE_PIE, BL2_AT_EL3, BL31, and BL32 (TSP) are really
position-independent now. You can load them anywhere irrespective of
their link address.

Change-Id: I8d5e3124ee30012f5b3bfa278b0baff8efd2fff7
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

uniphier: make uniphier_mmap_setup() work with PIE ...

BL2_BASE, BL31_BASE, and BL32_BASE are defined in platform_def.h,
that is, determined at link-time.

On the other hand, BL2_END, BL31_END, and BL32_END are derived from
the symbols produced by the linker scripts. So, they are fixed-up
at run-time if ENABLE_PIE is enabled.

To make it work in a position-indepenent manner, use BL_CODE_BASE and
BL_END, both of which are relocatable.

Change-Id: Ic179a7c60eb64c5f3024b178690b3ac7cbd7521b
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

uniphier: pass SCP base address as a function parameter ...

Currently, UNIPHIER_SCP_BASE is hard-coded in uniphier_scp_start(),
which is not handy for PIE.

Towards the goal of making this really position-independent, pass in
image_info->image_base.

Change-Id: I88e020a1919c607b1d5ce70b116201d95773bb63
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

uniphier: set buffer offset and length for io_block dynamically ...

Currently, the .buffer field in io_block_dev_spec is statically set,
which is not handy for PIE.

Towards the goal of making this really position-independent, set the
buffer length and length in the uniphier_io_block_setup() function.

Change-Id: I22b20d7b58d6ffd38f64f967a2820fca4bd7dade
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

uniphier: use more mmap_add_dynamic_region() for loading images ...

Currently, uniphier_bl2_mmap hard-codes the memory region needed for
loading other images.

Towards the goal of making this really position-independent, call
mmap_add_dynamic_region() before that region gets accessed.

Change-Id: Ieb505b91ccf2483e5f1a280accda564b33f19f11
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

uniphier: turn on ENABLE_PIE ...

Now that various issues in the PIE support have been fixed,
this platform can enable ENABLE_PIE.

I tested BL2_AT_EL3, BL31, TSP, and all of them worked.

Change-Id: Ibc499c6bad30b7f81a42bfa7e435ce25f820bd9c
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>