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: Masahiro Yamada <yamada.masahiro@socionext.com>
Initialize SBC and Support Card in U-Boot proper instead of SPL.
We may run different firmware (ex. ARM Trusted Firmware) before
U-Boot, and basic SoC initialization may be done there. In that
case, SPL may not be used.
The motivation for preparing SBC and Support Card in SPL was to use
LED for early debugging, but this is not mandatory to boot SoCs.
With this commit, LED will be unavailable in SPL, but we can use a
debug serial instead. So, this change will not be a big deal.
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>
Currently, memconf-sld3.c and memconf-pxs2.c duplicate the code.
There are 3 patterns in terms of MEMCONF init:
- DRAM 2 channels: LD4, sLD8, Pro4, Pro5, LD11
- DRAM 3 channels: sLD3
- DRAM 3 channels (Ch2 is disable by MEMCONF[21]): Pxs2, LD20
All of them can be moved into a single file by a little more
refactoring.
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>
This is the last code in the mach-uniphier/pinctrl/ directory.
Push the remaining code out to delete the directory entirely.
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 NAND subsystem has not supported the Driver Model yet, but the
NAND pin-mux data are already in the pinctrl drivers. Use them by
calling pinctrl_generic_set_state() directly.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Currently, the UniPhier platform calls several init functions in the
following order:
[1] spl_board_init()
[2] board_early_init_f()
[3] board_init()
[4] board_early_init_r()
[5] board_late_init()
The serial console is not ready at the point of [2], so we want to
avoid using [2] from the view point of debuggability. Fortunately,
all of the initialization in [2] can be delayed until [3]. I see no
good reason to split into [3] and [4]. So, merge [2] through [4].
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
We can use checkboard() stub to show additional board information,
so misc_init_f() should not be used for this purpose.
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>
Before adding ARMv8 support, this commit refactors the directory
structure. Move ARMv7 specific files to arch/arm/mach-uniphier/arm32
to avoid a mess by mixture of ARMv7 and ARMv8 code. Also move the
"select CPU_V7" to the lower-level menu because we will have to
select ARM64 instead of CPU_V7 for ARMv8 SoCs.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The U-Boot proper building needs to descend arch/arm/mach-uniphier/dram
to build these commands.
Fixes: 93d92d46cd ("ARM: uniphier: add dump command for DDR Multi PHY registers")
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
UniPhier SoCs are not equipped with dedicated on-chip SRAM. Instead,
locked outer cache is used as RAM area during the early boot stage
where DRAM is not ready yet. This effectively means MMU must be
always enabled while we are in SPL.
Currently, the SPL image for UniPhier SoCs contains the page table
statically defined at compile time. It has been a burden because the
16KB page table occupies a quarter memory footprint of the 64KB SPL
image.
Finally, there is no more room to implement new features in SPL.
Setting aside the NOR boot mode, this issue can be solved by creating
the page table onto RAM at run time.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This command shows the boot mode pins, so it would be more at home
in the boot-mode subdirectory.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This command shows the register dump of the DDR PHY, so it would be
more at home in the dram subdirectory.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The UMC (Universal Memory Controller) and the DDR PHY block are
highly related to each other. It is better to have both code in the
same directory.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Compile this file for U-Boot proper as well as SPL, so that the
U-Boot proper can call uniphier_get_board_param().
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>
Move init code of low-level debug into a single file.
This is helpful to create an image that runs on multiple SoCs.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
I want these prefixed with CONFIG_ARCH_UNIPHIER_ to clarify
they belong to UniPhier SoC family.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
It is no longer necessary to define CONFIG_SUPPORT_CARD_* globally.
Move them to a C file as local macros. Also, rename the C file.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Historically (for compatibility with very old platforms), two
different types of micro support cards have been used with the
UniPhier SoC development boards. It has been painful to maintain
both. Having one of them is enough.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
The init code for UMC (Unified Memory Controller) and PLL has not
been mainlined yet, but U-boot proper should work.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Currently, the secondary CPU(s) are kicked three times:
Boot ROM ---(kick)--> SPL ---(kick)--> U-boot ---(kick)--> Linux.
It makes the boot sequence very complicated.
This commit merges the first and the second kicks, so the secondary
CPU(s) can directly jump from SPL to Linux.
arch/arm/mach-uniphier/smp.S is no longer necessary.
Linux boot test passed.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
To remove the ifdef conditional of CONFIG_SKIP_LOWLEVEL_INIT,
add late_lowlevel_init.S to U-Boot proper.
Signed-off-by: Masahiro 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: Masahiro Yamada <yamada.m@jp.panasonic.com>
