Commit graph

345 commits

Author SHA1 Message Date
Tom Rini
83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00
Masahiro Yamada
b08c8c4870 libfdt: move headers to <linux/libfdt.h> and <linux/libfdt_env.h>
Thomas reported U-Boot failed to build host tools if libfdt-devel
package is installed because tools include libfdt headers from
/usr/include/ instead of using internal ones.

This commit moves the header code:
  include/libfdt.h         -> include/linux/libfdt.h
  include/libfdt_env.h     -> include/linux/libfdt_env.h

and replaces include directives:
  #include <libfdt.h>      -> #include <linux/libfdt.h>
  #include <libfdt_env.h>  -> #include <linux/libfdt_env.h>

Reported-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-03-05 10:16:28 -05:00
Masahiro Yamada
a322eb9ff6 ARM: uniphier: hide memory top by platform hook instead of CONFIG
I do not see a good reason to do this by a CONFIG option that affects
all SoCs.  The ram_size can be adjusted by dram_init() at run-time.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-01-09 21:58:19 +09:00
Masahiro Yamada
be893a5c09 ARM: uniphier: do not use RAM that exceeds 32 bit address range
LD20 / PXs3 boards are equipped with a large amount of memory beyond
the 32 bit address range.  U-Boot relocates itself to the end of the
available RAM.

This is a problem for DMA engines that only support 32 bit physical
address, like the SDMA of SDHCI controllers.

In fact, U-Boot does not need to run at the very end of RAM.  It is
rather troublesome for drivers with DMA engines because U-Boot does
not have API like dma_set_mask(), so DMA silently fails, making the
driver debugging difficult.

Hide the memory region that exceeds the 32 bit address range.  It can
be done by simply carving out gd->ram_size.  It would also possible to
override get_effective_memsize() or to define CONFIG_MAX_MEM_MAPPED,
but dram_init() is a good enough place to do this job.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-01-09 21:58:17 +09:00
Masahiro Yamada
7f8e75390b ARM: uniphier: use FIELD_PREP for PLL settings
It is tedious to define both mask and bit-shift.  <linux/bitfield.h>
provides a convenient way to get access to register fields with a
single shifted mask.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-12-12 00:36:12 +09:00
Masahiro Yamada
f2ce50b2d0 ARM: uniphier: compute SSCPLL values more precisely
Use DIV_ROUND_CLOSEST().  To make the JK value even more precise,
I used a bigger coefficient, then divide it by 512.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-12-12 00:36:11 +09:00
Dai Okamura
c30c44e799 ARM: uniphier: fix SSCPLL init code for LD11 SoC
Commit 682e09ff9f ("ARM: uniphier: add PLL init code for LD20 SoC")
missed to write the computed value to the SSCPLLCTRL2 register.

Fixes: 682e09ff9f ("ARM: uniphier: add PLL init code for LD20 SoC")
Signed-off-by: Dai Okamura <okamura.dai@socionext.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-12-12 00:36:11 +09:00
Masahiro Yamada
00ed0e3ee3 ARM: uniphier: compile pll-base-ld20.c for PXs3
Fix the link error for the combination of
  CONFIG_ARCH_UNIPHIER_LD11=n
  CONFIG_ARCH_UNIPHIER_LD20=n
  CONFIG_ARCH_UNIPHIER_PXS3=y

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-12-12 00:35:59 +09:00
Masahiro Yamada
ac389b0749 ARM: uniphier: clean up board_init
Remove unnecessary DECLARE_GLOBAL_DATA_PTR and header includes.

<common.h> has been replaced with <linux/errno.h> and <linux/printk.h>.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-12-04 21:59:52 +09:00
Masahiro Yamada
b443fb4210 ARM: dts: uniphier: Sync with Linux 4.15-rc1
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-11-29 00:29:00 +09:00
Masahiro Yamada
10c62f41e3 ARM: uniphier: remove XIRQ pin settings
The XIRQ pins are now set up on the Linux side by the GPIO hogging.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-11-29 00:28:59 +09:00
Masahiro Yamada
eadd95a97e ARM: uniphier: remove IRQ settings
This work-around has been here in U-Boot because the AIDET and GPIO
drivers were missing in the upstream Linux.  Both are now available
in Linus' tree:
  - drivers/irqchip/irq-uniphier-aidet.c
  - drivers/gpio/gpio-uniphier.c

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-11-29 00:28:59 +09:00
Masahiro Yamada
624c0954c7 ARM: uniphier: use pr_*() more where appropriate
Commit dd74b945af ("ARM: uniphier: use pr_() instead of printf()
where appropriate"), but I missed to update this file for some reason.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-10-23 01:09:22 +09:00
Masahiro Yamada
9ac0e7b37a ARM: uniphier: split u-boot,dm-pre-reloc out to uniphier-v7-u-boot.dtsi
UniPhier 32-bit SoCs use CONFIG_SPL_OF_CONTROL.  So, many nodes must
be marked as dm-pre-reloc to prevent fdtgrep from stripping them off.

Sprinkling U-Boot-specific properties all over the place is painful
because DT files are synced with Linux from time to time.

Split u-boot,dm-pre-reloc out to uniphier-v7-u-boot.dtsi, which is
appended to UniPhier V7 DTS before the build.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-10-23 01:02:05 +09:00
Masahiro Yamada
d0df9588e8 ARM: uniphier: remove CONFIG_UNIPHIER_ETH
The option is never enabled by anyone.  Remove the code surrounded
by its ifdef.  This should be handled by the clock/reset drivers.

CONFIG_UNIPHIER_ETH in scripts/config_whitelist.txt will be dropped
by the next resync.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-10-23 01:02:05 +09:00
Masahiro Yamada
c7372d61fd ARM: uniphier: adjust ifdefs for new UniPhier DWC3 CONFIG
Now USB 3.0 feature is enabled/disabled by CONFIG_USB_DWC3_UNIPHIER.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-10-15 22:32:25 +09:00
Masahiro Yamada
5e5edca27c ARM: uniphier: change the default of SoC select to UNIPHIER_V7_MULTI
ARCH_UNIPHIER_V8_MULTI depends on !SPL, so the default may be hidden.
Use a clearer default.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-10-15 22:32:25 +09:00
Masahiro Yamada
dd74b945af ARM: uniphier: use pr_() instead of printf() where appropriate
Replace printf() with pr_() to specify proper loglevel.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-10-15 22:32:24 +09:00
Masahiro Yamada
b44b30260f printk: collect printk stuff into <linux/printk.h> with loglevel support
When we import code from Linux, with regular re-sync planned, we want
to use printk() and pr_*().  U-Boot does not support them in a clean
way.  So, people end up with local macros, or compat headers here and
there, then we occasionally see build errors of definition conflicts.

We have include/linux/compat.h, but putting all sorts of unrelated
things into a single header is just a temporal workaround.  Hence this
patch, to find the best home for all printk variants.  If you want to
use printk() and friends, please include <linux/printk.h>.  This header
is self-contained, and pulls in only a few headers.

When I was testing this clean-up, I noticed the image size exceeded
its platform limit on some boards.  This is because all pr_*() that
were previously defined as no-op in include/linux/mtd/mtd.h (unless
CONFIG_MTD_DEBUG is set), are now enabled.

To make such boards happy, this commit also implements CONFIG_LOGLEVEL.
The concept is similar to the kernel parameter "loglevel".  (Actually,
the Kconfig help message was taken from kernel-paremeter.txt of Linux)
Messages with a loglevel smaller than console loglevel will be printed.

The difference is the loglevel is build-time determined.  To save the
image size, lower priority pr_*() are compiled out.  I set the default
of CONFIG_LOGLEVEL to 6, i.e. pr_notice and higher priority messages
are compiled in.

I adjusted CONFIG_LOGLEVEL to avoid build error for some boards.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
[trini: Add in SPL_LOGLEVEL that is the same as LOGLEVEL]
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-10-04 10:31:17 -04:00
Masahiro Yamada
a184fb8e96 ARM: uniphier: add GPU(Mali) reset deassert and clk enable
The driver for Linux is out of control of Socionext, so set up
reset / clock in here.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-09-18 20:26:18 +09:00
Masahiro Yamada
2bf7c86ebb ARM: uniphier: remove bit field macros from sc64-regs.h
Starting from PXs3, the bit fields of  RSTCTRL, CLKCTRL registers
will change every SoC.  There is no more point to define bitfields
in the common header file.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-09-18 20:26:12 +09:00
Masahiro Yamada
81b9bb5fcb ARM: uniphier: merge two defconfig files into uniphier_v7_defconfig
The main difference between Pro4 and PXs2/LD6b is the Denali NAND
IP version.  This is now distinguished by DT.  Merge the two defconfig
files into uniphier_v7_defconfig.

Update the README.uniphier too.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-09-18 20:26:06 +09:00
Masahiro Yamada
d8a10e7fac ARM: uniphier: set system bus pinmux for PXs3
The system bus is not enabled by default for NAND, eMMC boot
etc. of PXs3.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-08-30 09:07:04 +09:00
Masahiro Yamada
b173c19663 ARM: uniphier: move CONFIG_NAND to defconfig
This imply was added when the option was moved by the moveconfig tool,
but the intention is not clear.  Move it to defconfig.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-08-30 09:07:04 +09:00
Dai Okamura
4013bbb1f3 ARM: uniphier: fix DSPLL init code for LD20 SoC
Signed-off-by: Dai Okamura <okamura.dai@socionext.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-08-30 09:07:04 +09:00
Masahiro Yamada
e0daca7de5 ARM: uniphier: remove ad-hoc pin settings for NAND
This is now set up by the pinctrl driver when the NAND driver is
probed.  Remove the legacy code.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-08-30 09:06:57 +09:00
Masahiro Yamada
4914a68de7 ARM: uniphier: add PLL settings for PXs3
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-08-30 09:03:11 +09:00
Masahiro Yamada
a55957b9ad ARM: uniphier: move PLLCTRL register macros to each SoC .c file
The new SoC PXs3 changed the address of PLL, but still uses the
same PLL name.  We can not define SC_*PLLCTRL in the common header.
Move them to per-SoC .c file.  Also, fix some PLL comments.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-08-30 09:03:11 +09:00
Masahiro Yamada
546197b986 ARM: uniphier: replace <common.h> with <linux/delay.h> in pll settings
The #include <common.h> was added for mdelay().  Later, the declaration
of mdelay was moved to <linux/delay.h> by commit 5bc516ed66 ("delay:
collect {m, n, u}delay declarations to include/linux/delay.h").

There is no need to include <common.h> now.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-08-30 09:03:11 +09:00
Masahiro Yamada
c5161eee38 Revert "ARM: uniphier: fix ROM boot mode for PH1-sLD3"
This reverts commit 82d075e79f.

Commit 82d075e79f ("ARM: uniphier: fix ROM boot mode for PH1-sLD3")
was a workaround for sLD3.  Now the sLD3 SoC support has been removed.

Revert it to allow to simplify the init code.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-08-20 23:05:39 +09:00
Masahiro Yamada
0aa8b2c3e0 Revert "ARM: uniphier: move lowlevel debug init code after page table switch"
This reverts commit bcc51c1512.

Commit bcc51c1512 ("ARM: uniphier: move lowlevel debug init code
after page table switch") was intended to support lowlevel debug for
sLD3.  Now the sLD3 SoC support has been removed.

Revert it to allow to enable lowlevel debug earlier.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-08-20 23:05:39 +09:00
Masahiro Yamada
00aa453ebf ARM: uniphier: remove sLD3 SoC support
This SoC is too old.  It is difficult to maintain any longer.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-08-20 23:05:39 +09:00
Simon Glass
00caae6d47 env: Rename getenv/_f() to env_get()
We are now using an env_ prefix for environment functions. Rename these
two functions for consistency. Also add function comments in common.h.

Quite a few places use getenv() in a condition context, provoking a
warning from checkpatch. These are fixed up in this patch also.

Suggested-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
2017-08-16 08:30:24 -04:00
Simon Glass
018f530323 env: Rename common functions related to setenv()
We are now using an env_ prefix for environment functions. Rename these
commonly used functions, for consistency. Also add function comments in
common.h.

Suggested-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
2017-08-16 08:23:32 -04:00
Simon Glass
382bee57f1 env: Rename setenv() to env_set()
We are now using an env_ prefix for environment functions. Rename setenv()
for consistency. Also add function comments in common.h.

Suggested-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
2017-08-16 08:22:18 -04:00
Adam Ford
5bbc265bec Convert CONFIG_NAND to Kconfig
This converts the following to Kconfig:
   CONFIG_NAND

Signed-off-by: Adam Ford <aford173@gmail.com>
[trini: Sync up a few more, add imply's]
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-08-12 09:18:47 -04:00
Masahiro Yamada
b8faf5f12b ARM: uniphier: remove part number info from the boot log
As is often the case with SoC development, slightly different
products (i.e. different part number) are developed based on the
same silicon-die.  Such fine grained information is unmaintainable.

Also, "SoC:" is a better fit that "CPU:".

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-07-26 22:27:15 +09:00
Masahiro Yamada
ee8d037ce7 ARM: uniphier: remove SPL support for ARMv8 SoCs
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>
2017-07-26 22:27:15 +09:00
Masahiro Yamada
1d21e1b97c ARM: uniphier: fix various sparse warnings
Fix warnings reported by sparse:
 - ... was not declared. Should it be static?"
 - cast to restricted __be32

While fixing those, the type conflict of cci500_init() was found.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-06-25 06:06:09 +09:00
Simon Glass
4af0d7e870 dm: Fix up inclusion of common.h
It is good practice to include common.h as the first header. This ensures
that required features like the DECLARE_GLOBAL_DATA_PTR macro,
configuration options and common types are available.

Fix up some files which currently don't do this. This is necessary because
driver model will soon start using global data and configuration in the
dm/read.h header file, included via dm.h. The gd->fdt_blob value will be
used to access the device tree and CONFIG options will be used to
determine whether to support inline functions in the header file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01 07:03:03 -06:00
Simon Glass
9d922450aa dm: Use dm.h header when driver mode is used
This header includes things that are needed to make driver build. Adjust
existing users to include that always, even if other dm/ includes are
present

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01 06:57:52 -06:00
Masahiro Yamada
81afa9c9a3 ARM: uniphier: add more init code for PXs3
Add the boot device table and reset deassertion for eMMC.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-05-17 21:56:17 +09:00
Masahiro Yamada
45f41c134b ARM: uniphier: add weird workaround code for LD20
When booting from ARM Trusted Firmware, U-Boot runs in EL1-NS.
The boot flow is as follows:
  BL1 -> BL2 -> BL31 -> BL33 (i.e. U-Boot)

This boot sequence works fine for LD11 SoC (Cortex-A53), but LD20
SoC (Cortex-A72) hangs in U-Boot.  The solution I found is to
read sctlr_el1 and write back the value as-is.  This should be
no effect, but surprisingly fixes the problem for LD20 to boot.
I do not know why.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-05-17 21:50:31 +09:00
Masahiro Yamada
c5bd411f6c ARM: uniphier: fix MODEL field of REVISION register
The MODEL field is 3 bit wide.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-05-17 21:46:14 +09:00
Tom Rini
8850c5d57c Kconfig: USB: Migrate CONFIG_USB_EHCI to CONFIG_USB_EHCI_HCD
In order to be able to migrate the various SoC EHCI CONFIG options we
first need to finish the switch from CONFIG_USB_EHCI to
CONFIG_USB_EHCI_HCD.

Cc: Marek Vasut <marex@denx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Marek Vasut <marex@denx.de>
2017-05-15 10:40:05 -04:00
Masahiro Yamada
637548424b ARM: uniphier: show STM (SCP) status on boot and pinmon command
The SCP (System Control Processor) or what we call STM (Stand-by
MPU) is integrated in LD4, Pro4, sLD8, LD6b, LD11, and LD20.
For these SoCs, show the information if STM is enabled.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-04-20 23:49:56 +09:00
Masahiro Yamada
fed9c76641 ARM: uniphier: enable PSCI sysreset for uniphier_v8_defconfig
This configuration is supposed to be used with ARM Trusted Firmware,
so the SYSTEM_RESET is implemented in BL31.  Invoke PSCI instead of
U-Boot's own reset code because we need to coordinate with SCP
(System Control Processor) for the system-level power management.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-04-20 23:49:50 +09:00
Masahiro Yamada
395e2142e4 ARM: uniphier: setup EHCI PHY paramters for LD11
Set the same PHY parameters as the Boot ROM uses.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-04-20 23:49:50 +09:00
Simon Glass
76b00aca4f board_f: Drop setup_dram_config() wrapper
By making dram_init_banksize() return an error code we can drop the
wrapper. Adjust this and clean up all implementations.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Stefan Roese <sr@denx.de>
2017-04-05 16:36:51 -04:00
Masahiro Yamada
fc671ed4e3 ARM: uniphier: set DRAM_SPARSE flag for LD21 boards
Commit 04cd4e7215 ("ARM: uniphier: remove DRAM base address from
board parameters") accidentally unset the DRAM_SPARSE flag, and
changed the physical map of the DRAM channels.  Revive the original
behavior.

Fixes: 04cd4e7215 ("ARM: uniphier: remove DRAM base address from board parameters")
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reported-by: Shunji Sato <sato.shunji@socionext.com>
2017-03-14 04:15:24 +09:00