For LD11 and LD20 SoCs, the System Bus and NAND are multiplexed
in the same I/O pins. When booting from a NAND device, pin-mux
for the System Bus must not be set-up because they are exclusive
with each other.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
- Initialize PLLs (SPL initializes only DPLL to save the precious
SPL memory footprint)
- Adjust CPLL/MPLL to the final tape-out frequency
- Set the Cortex-A53 clock to the maximum frequency since it is
running at 500MHz (SPLL/4) on startup
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Initialize the DPLL (PLL for DRAM) in SPL, and others in U-Boot
proper. Split the common code into pll-base-ld20.c for easier
re-use.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The PLL for the DRAM interface must be initialized in SPL, but the
others can be delayed until U-Boot proper. Move them from SPL to
U-Boot proper to save the precious SPL memory footprint.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Use the pin-mux data in the pinctrl drivers by directly calling
pinctrl_generic_set_state().
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The Boot ROM has enabled D-cache and MMU setting DDR memory area
as Normal Memory in its page table. Disable D-cache and MMU
before jumping to U-Boot proper.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The code in uniphier_sld3_sbc_init() is pin-muxing, so it would
be a better fit in uniphier_sld3_early_pin_init().
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The System Bus is not available by default on the ROM boot mode of
PH1-LD20. To use devices connected to the System Bus, such as the
Micro Support Card, it is necessary to set up pin-muxing and some
System Bus Controller register.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Eliminate the "ph1"_ prefixes from function names because "uniphier_"
describes the SoC familiy better.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
For ARM32 architecture, CONFIG_DEBUG_LL is available for early
low-level debugging (and actually UniPhier 32bit SoCs use it), but
ARM64 architecture does not support it. Instead, CONFIG_DEBUG_UART
is available as an architecture-independent debug facility.
This commit supports it on all the UniPhier SoCs (including the new
ARMv8 SoCs), which is very useful for new SoC bringups.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
There is a bunch of duplication in the System Bus Controller init
code. Roughly, there are two types in the SBC mode: Adress/Data
Multiplex Mode and Save Pins Mode. Consolidate per-SoC functions
into the two, plus per-SoC optional init code.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The current CONFIG names like "CONFIG_ARCH_UNIPHIER_PH1_PRO4" is too
long. It would not hurt to drop "PH1_" because "UNIPHIER_" already
well specifies the SoC family. Also, rename files for consistency.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
As mentioned in the log of commit 019df879a9 (ARM: uniphier: add
ProXstream2 and PH1-LD6b support), the DRAM init code was missing
for a long time. Finally, here it is. SPL works now.
Signed-off-by: Masahiro 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: Masahiro Yamada <yamada.masahiro@socionext.com>
Move "gd->fdt_blob" from the caller to the callee so that this
function can be used more easily.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
After consulting with some of the SPDX team, the conclusion is that
Makefiles are worth adding SPDX-License-Identifier tags too, and most of
ours have one. This adds tags to ones that lack them and converts a few
that had full (or in one case, very partial) license blobs into the
equivalent tag.
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
The DDR SDRAM initialization code has not been mainlined yet, but
U-Boot proper should work.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The DDR SDRAM initialization code has not been mainlined yet, but
U-Boot proper should work.
Signed-off-by: Masahiro 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: Masahiro Yamada <yamada.masahiro@socionext.com>
