Currently, uniphier_get_soc_type() converts the SoC ID (this is
read from the revision register) to an enum symbol to use it for SoC
identification.  Come to think of it, there is no need for the
conversion in the first place.  Using the SoC ID from the register
as-is a straightforward way.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

This is a low-cost ARMv8 SoC from Socionext Inc.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

This is the first ARMv8 SoC from Socionext Inc.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

For PH1-LD20 or later, per-pin input-enable control is supported,
that is, we need to set-up IECTRL registers for a group of pins.
This helper function will be useful for a bunch of register settings.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

This helper function would be useful for new SoCs with per-pin
input enable controlling, such as PH1-LD20, PH1-LD11, etc.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

The UniPhier SoC family has not supported ARMv8 yet, but these would
cause warnings if they were compiled with a 64bit compiler.  Before
adding the ARMv8 support really, fix them now.

Because UniPhier SoCs do not support Large Physical Address Extension,
casting "phys_addr_t" into "unsigned long" would carry the address
as is.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

These headers are only included locally in arch/arm/mach-uniphier/.
There is no reason to export them by putting in the mach/ directory.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

The DDR SDRAM initialization code has not been mainlined yet, but
U-Boot proper should work.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

The DDR SDRAM initialization code has not been mainlined yet, but
U-Boot proper should work.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

Before this commit, the Kconfig menu in mach-uniphier only allowed us
to choose one SoC to be compiled.  Each SoC has its own defconfig file
for the build-test coverage.  Consequently, some defconfig files are
duplicated with only the difference in CONFIG_DEFAULT_DEVICE_TREE and
CONFIG_{SOC_NAME}=y.

Now, most of board-specific parameters have been moved to device trees,
so it makes sense to include init code of multiple SoCs into a single
image as long as the SoCs have similar architecture.  In fact, some
SoCs of UniPhier family are very similar:
 - PH1-LD4 and PH1-sLD8
 - PH1-LD6b and ProXstream2 (will be added in the upcoming commit)

This commit will be helpful to merge some defconfig files for better
maintainability.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

To achieve the complete run-time configuration by device trees, ifdef
conditionals in header files are not preferable.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

The init code for UMC (Unified Memory Controller) and PLL has not
been mainlined yet, but U-boot proper should work.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

In the Linux coding style, it is recommended to include <linux/io.h>
rather than <asm/io.h>.  Follow this trend.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>

This code is duplicated in ph1-ld4/sg_init.c and ph1-pro4/sg_init.c.
Merge the same code into a new file, memconf.c.

The helper functions no longer have to be placed in the header file.
Also, move them into memconf.c.
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>

Move arch/arm/include/asm/arch-uniphier/*
  -> arch/arm/mach-uniphier/include/mach/*
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>

PH1-sLD3, PH1-LD6b have DDR channel 2.
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>

Match the suffixes of SG_MEMCONF_* macros with SZ_* macros defined
by <linux/sizes.h> for readability.
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>

Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>

The function sg_set_pinsel is useful for switching I/O pins
but it can be only used in C code.  This commit adds a simple
macro that is available in asm code.
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>

These are used by Panasonic UniPhier SoC family.
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>