It has been a while since ARM Trusted Firmware supported UniPhier SoC
family. U-Boot SPL was intended as a temporary loader that runs in
secure world. It is a maintenance headache to support two different
boot mechanisms. Secure firmware is realm of ARM Trusted Firmware
and now U-Boot only serves as a non-secure boot loader for UniPhier
ARMv8 SoCs.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
For LD11 and LD20 SoCs, the RST_n pin is asserted by default. If
the EXT_CSD[162], bit[1:0] (RST_n_ENABLE) is fused, the eMMC device
would stay in the reset state until its RST_n pin is deasserted by
software.
Currently, this is cared by an ad-hoc way because the eMMC hardware
reset provider is not supported in U-Boot for now. This code should
be re-written once the "mmc-pwrseq-emmc" binding is supported.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Merge init-*.c into a single file using a table of callbacks because
the initialization flow is almost common among SoCs.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The code here is cluttered due to the switch statement. Introduce a
table of callbacks to clean up the initialization code across SoCs.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The clock enable bits for UMC are more SoC-specific than for
the other hardware blocks. Separate the UMC clocks and the other
clocks for better code reuse across SoCs.
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>
Now PLLs for DRAM controller are initialized in SPL, and the others
in U-Boot proper. Setting up all of them in a single directory will
be helpful when we want to share code between SPL and U-Boot proper.
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>
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>
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>
Masahiro Yamada
Tom Rini