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Initial support for PXs3 SoC.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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The <common.h> includes too many headers. Actually, these files
needed to include it for udelay() declaration. Now we can replace
it with <linux/delay.h> thanks to commit 5bc516ed661a ("delay:
collect {m, n, u}delay declarations to include/linux/delay.h").
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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These files only need error number macros. Actually, IS_ERR(),
PTR_ERR(), ERR_PTR(), etc. are not useful for U-Boot. Avoid
unnecessary header includes.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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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>
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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>
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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>
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At first, we thought the LD20 PLL setting would be board dependent,
but this argument turned out unneeded after all.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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The USB boot without the stand-by MPU is available on ES3 or later
of LD11 SoC, but the code in this if-conditional block must not be
run when booting from USB. Check if the boot device is USB, and
skip the code in the case.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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At the moment, the clk driver is not clever enough to automatically
enable parent clocks like Linux. Enable the STDMAC clock explicitly
if USB is enabled.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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For Electro-Magnetic Compatibility.
Set CPLL, SPLL2, MPLL, VPPLL, GPPLL, DPLL* to SSC rate 1 percent.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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This delay is already cared by the callers of this function.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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It is now deasserted by the reset controller driver. Drop the
ad-hoc code.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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For Electro-Magnetic Compatibility test.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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- 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>
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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>
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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>
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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>
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Deassert resets and enable clock signals of xHCI blocks if the
corresponding CONFIG is enabled.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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This is a low-cost ARMv8 SoC from Socionext Inc.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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This is the first ARMv8 SoC from Socionext Inc.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Eliminate the "ph1"_ prefixes from function names because "uniphier_"
describes the SoC familiy better.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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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>
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The UniPhier EHCI driver (drivers/usb/host/ehci-uniphier.c) does
nothing special but set the base address and handle reset/clock.
Since commit 4feefdcfe916 ("usb: add clock support for generic EHCI"),
the generic one (drivers/usb/host/ehci-generic.c) can do those, too.
We no longer need to stick to the dedicated driver.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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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>
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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>
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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>
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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>
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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>
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