Commit Graph

71 Commits

Author SHA1 Message Date
Simon Glass
336d4615f8 dm: core: Create a new header file for 'compat' features
At present dm/device.h includes the linux-compatible features. This
requires including linux/compat.h which in turn includes a lot of headers.
One of these is malloc.h which we thus end up including in every file in
U-Boot. Apart from the inefficiency of this, it is problematic for sandbox
which needs to use the system malloc() in some files.

Move the compatibility features into a separate header file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:46 -07:00
Simon Glass
61b29b8268 dm: core: Require users of devres to include the header
At present devres.h is included in all files that include dm.h but few
make use of it. Also this pulls in linux/compat which adds several more
headers. Drop the automatic inclusion and require files to include devres
themselves. This provides a good indication of which files use devres.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
2020-02-05 19:33:46 -07:00
Simon Glass
db41d65a97 common: Move hang() to the same header as panic()
At present panic() is in the vsprintf.h header file. That does not seem
like an obvious choice for hang(), even though it relates to panic(). So
let's put hang() in its own header.

Signed-off-by: Simon Glass <sjg@chromium.org>
[trini: Migrate a few more files]
Signed-off-by: Tom Rini <trini@konsulko.com>
2020-01-17 17:53:40 -05:00
Simon Glass
9a3b4ceb37 common: Move reset_cpu() to the CPU header
Move this function out of common.h and into a relevant header file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-01-17 14:02:31 -05:00
Ley Foon Tan
bb25aca134 arm: socfpga: Convert reset manager from struct to defines
Convert reset manager for Gen5, Arria 10 and Stratix 10 from struct
to defines.

Change to get reset manager base address from DT node instead of using
#define.

spl_early_init() initializes the DT setup. So, move spl_early_init() to
beginning of function and before get base address from DT.

Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
2020-01-07 14:38:33 +01:00
Rasmus Villemoes
875669da3b sysreset_mpc83xx: fix mcp83xx -> mpc83xx typo
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2019-12-13 13:01:53 -05:00
Simon Glass
49a0f8cc96 x86: Move acpi_s3.h to a common location
At present this hedaer is only available on x86. To allow sandbox to use
it for testing, move it to a common location.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-08 13:57:46 +08:00
Simon Glass
ff7abb85a4 x86: sysreset: Allow reset driver to be included in SPL/TPL
At present this driver is always included in SPL and TPL, if U-Boot proper
enables it. Update the Makefile to provide full control using the existing
Kconfig options.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: make the Kconfig help text a little bit clearer]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-08 13:51:04 +08:00
Urja Rannikko
b8050511c6 sysreset: move stm32mp sysreset poweroff implementation to sysreset uclass
This is a generic implementation. Add CONFIG_SYSRESET_CMD_POWEROFF
to signal when we need it. Enable it from the STPMIC1 config and in
sandbox.

The config flag is transitionary, that is it can be removed after all
poweroff implementations use sysreset, and just have CMD_POWEROFF depend
on sysreset.

Signed-off-by: Urja Rannikko <urjaman@gmail.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
Tested-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-08-19 12:43:26 +08:00
Urja Rannikko
857f39d7b0 sysreset: switch to using SYSRESET_POWER_OFF for poweroff
It seems that SYSRESET_POWER_OFF was added recently, and all previous code
used SYSRESET_POWER for poweroff. SYSRESET_POWER is supposed to be a
PMIC-level power cycle, not a poweroff.

(Comment by Simon Glass)
SYSRESET_POWER means to do a power reset (removing and reinstating all power)
SYSRESET_POWER_OFF means to turn the device off and leave it off

Signed-off-by: Urja Rannikko <urjaman@gmail.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
(Update comment to help understand the patch)
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2019-08-19 12:43:26 +08:00
Simon Goldschmidt
a8b5031108 spl: kconfig: separate sysreset and firmware drivers from misc
This adds separate kconfig options for drivers/sysreset and
drivers/firmware.

Up to now, CONFIG_SPL_DRIVERS_MISC_SUPPORT added drivers/misc to SPL
build but also added drivers/firmware and drivers/sysreset at the same
time.

Since that is confusing, this patch uses CONFIG_SPL_SYSRESET for
drivers/sysreset and adds CONFIG_SPL_FIRMWARE for
drivers/firmware (and accordingly for the TPL options).

CONFIG_SPL_DRIVERS_MISC_SUPPORT stays for including drivers/misc into
the SPL build (and accordingly for TPL) since there are boards using
non-DM (non UCLASS_MISC) files from drivers/misc. Such boards don't
have CONFIG_SPL_MISC enabled, so cannot use this to include
drivers/misc into the SPL build.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
2019-07-21 12:47:13 +02:00
Simon Goldschmidt
690c12965f sysreset: socfpga: stratix10: add sysreset driver
This adds a UCLASS_SYSRESET sysreset driver for socfgpa stratix10.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
2019-07-21 12:45:10 +02:00
Simon Goldschmidt
1f1668883d sysreset: socfpga: gen5: add sysreset driver
This adds a UCLASS_SYSRESET sysreset driver for socfgpa gen5.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
2019-07-21 12:45:10 +02:00
Tom Rini
a9a3a37f92 - syscon: add support for power off
- stm32mp1: add op-tee config
 - stm32mp1: add specific commands: stboard and stm32key
 - add stm32 mailbox driver
 - solve many stm32 warnings when building with W=1
 - update stm32 gpio driver
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Merge tag 'u-boot-stm32-20190712' of https://gitlab.denx.de/u-boot/custodians/u-boot-stm

- syscon: add support for power off
- stm32mp1: add op-tee config
- stm32mp1: add specific commands: stboard and stm32key
- add stm32 mailbox driver
- solve many stm32 warnings when building with W=1
- update stm32 gpio driver
2019-07-14 09:09:49 -04:00
Patrick Delaunay
486942184a sysreset: syscon: add support for power off
The new type sysreset 'POWER_OFF', introduced by
commit 751fed426f ("sysreset: Add a way to find the last reset")
is only supported for "syscon-poweroff" compatible.

For details see Linux binding:
./Documentation/devicetree/bindings/power/reset/syscon-poweroff.txt

This patch removes the support of POWER_OFF for "syscon-reboot"
and keeps only the COLD reset (for command reset support)
and it introduces the compatible "syscon-poweroff"
for the POWER_OFF case.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-07-12 11:18:53 +02:00
Simon Glass
9072326a6a sandbox: Exit when SYSRESET_POWER_OFF is requested
At present this returns but it seems better to just exit sandbox
immediately.

Signed-off-by: Simon Glass <sjg@chromium.org>

reset
2019-07-10 16:52:58 -06:00
Chris Packham
26680b9f3a sysreset: select DM_GPIO instead of GPIO
CONFIG_GPIO does not exist. sysreset_gpio.c uses the DM gpio APIs so the
correct option to select is DM_GPIO.

Reported-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-05-10 07:18:13 -04:00
Tom Rini
f30f268a07 Merge tag 'rockchip-for-v2019.07-rc1' of git://git.denx.de/u-boot-rockchip
Improvements and new features:
- split more rockchip pinctrl_core feature into per SoC
- enable TPL for evb-rk3399 board
- enable TPL/SPL for evb-px5 board
- enable TPL and OP-TEE support for evb-rk3229
- update fix in arm common assembly start code for rockchip header file
- update default SPL_FIT_GENERATOR for rockchip
- rk3399 boards update to use '-u-boot.dtsi'
- add new rk3399 boards: Nanopi M4, Nanopc T4
- enable sound for chromebook_minnie
2019-05-09 12:36:17 -04:00
Kever Yang
09259fce1e sysreset: enable driver support in SPL/TPL
SPL/TPL also need use sysreset for some feature like panic callback.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2019-05-08 17:34:12 +08:00
Simon Glass
f77ab00e89 x86: sysreset: Implement the get_last() method
Add a default implementation of this method which always indicates that
the last reset was a power-on reset. This is the most likely type of reset
and without a PCH-specific driver we cannot determine any other type.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-05-08 13:02:16 +08:00
Simon Glass
d6b1ba2fb9 x86: sysreset: Implement power-off if available
On modern x86 devices we can power the system off using the power-
management features of the PCH. Add an implementation for this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-05-08 13:02:15 +08:00
Simon Glass
40476f4afc x86: sysreset: Separate out the EFI code
The EFI implementation of reset sits inside the driver and is called
directly from outside the driver, breaking the normal driver-model
conventions. Worse, it passed NULL as the device pointer, hoping that
the called function won't use it, which breaks as soon as code is added
to use it.

Separate out the implementation to improve the situation enough to allow
a future patch to add new sysreset features.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-05-08 13:02:15 +08:00
Kever Yang
15f09a1a83 rockchip: use 'arch-rockchip' as header file path
Rockchip use 'arch-rockchip' instead of arch-$(SOC) as common
header file path, so that we can get the correct path directly.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-05-01 00:00:05 +02:00
Patrick Delaunay
50fd31fd77 sysreset: syscon: remove POWER reset cause
The sysreset of 'POWER' type is a PMIC reset defined as
'remove and restore power'.
So normally only COLD/WARN is supported by sysreset_syscon.

This modification allows to use the function sysreset_walk(SYSRESET_POWER)
when it is supported by PMIC driver (see example in stpmic1).

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-04-26 18:58:22 -04:00
Patrick Delaunay
662a74a250 sysreset: use syscon_regmap_lookup_by_phandle
Use the new function syscon_regmap_lookup_by_phandle()
to simplify the code.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-04-11 20:10:05 -06:00
Alexander Graf
3eeb09b4c0 x86: Add efi runtime reset
Our selftest will soon test the actual runtime reset function rather than
the boot time one. For this, we need to ensure that the runtime version
actually succeeds on x86 to keep our travis tests work.

So this patch implements an x86 runtime reset function. It is missing
shutdown functionality today, but OSs usually implement that via ACPI
and this function does more than the stub from before, so it's at least
an improvement.

Eventually we will want to have full DM functionality in runtime services.
But this fixes a travis failure and doesn't clutter the code too heavily, so
we should pull it in without the amazing new RTS DM framework.

Signed-off-by: Alexander Graf <agraf@suse.de>
2019-03-11 00:44:42 +01:00
Simon Glass
2a07269062 sandbox: sysreset: Update to support power-on reset
If U-Boot is started from SPL or TPL, then those earlier phases deal with
the reset cause. On real hardware this cause may be lost once it is read.
Emulate that behaviour in sandbox by reporting a warm reset when a
previous phase has run since start-up.

Signed-off-by: Simon Glass <sjg@chromium.org>
2018-12-05 06:01:34 -07:00
Bin Meng
ef329a6a73 sysreset: Remove DM_FLAG_PRE_RELOC flag in various drivers
When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be
bound before relocation. However due to a bug in the DM core,
the flag only takes effect when devices are statically declared
via U_BOOT_DEVICE(). This bug has been fixed recently by commit
"dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in
lists_bind_fdt()", but with the fix, it has a side effect that
all existing drivers that declared DM_FLAG_PRE_RELOC flag will
be bound before relocation now. This may expose potential boot
failure on some boards due to insufficient memory during the
pre-relocation stage.

To mitigate this potential impact, the following changes are
implemented:

- Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver
  only supports configuration from device tree (OF_CONTROL)
- Keep DM_FLAG_PRE_RELOC flag in the driver only if the device
  is statically declared via U_BOOT_DEVICE()
- Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for
  drivers that support both statically declared devices and
  configuration from device tree

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-11-14 09:16:28 -08:00
Simon Glass
751fed426f sysreset: Add a way to find the last reset
We have a method to return the last reset as a string for humans, but not
a method that allows it to be used programmatically. Add a new method that
returns the last reset as an enum.

Signed-off-by: Simon Glass <sjg@chromium.org>
2018-10-09 04:40:27 -06:00
Simon Glass
eb517315a6 sysreset: Tidy up a few comments and logging
Some comments are incorrect or missing pieces. Fix these and use logging
to print the error.

Signed-off-by: Simon Glass <sjg@chromium.org>
2018-10-09 04:40:27 -06:00
Mario Six
76fdad1f21 mpc83xx: Add sysreset driver
Add a sysreset driver for the MPC83xx platform.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Mario Six <mario.six@gdsys.cc>
2018-09-18 00:01:18 -06:00
Mario Six
cda4688c5e test: Add tests for sysreset_get_status
Add some tests for sysreset_get_status.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Mario Six <mario.six@gdsys.cc>
2018-09-18 00:01:18 -06:00
Mario Six
245f5cda69 sysreset: Add get_status method
It's useful to have the reset status of the SoC printed out during reset
(e.g. to learn whether the reset was caused by software or a watchdog).

As a first step to implement this, add a get_status method to the
sysreset class, which enables the caller to get printable information
about the reset status (akin to get_desc in the CPU uclass).

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Mario Six <mario.six@gdsys.cc>
2018-09-18 00:01:18 -06:00
Andreas Dannenberg
694b052401 sysreset: Add TI System Control Interface (TI SCI) sysreset driver
Devices from the TI K3 family of SoCs like the AM654x contain a Device
Management and Security Controller (SYSFW) that manages the low-level
device control (like clocks, resets etc) for the various hardware
modules present on the SoC. These device control operations are provided
to the host processor OS through a communication protocol called the TI
System Control Interface (TI SCI) protocol.

This patch adds a system reset driver that communicates to the system
controller over the TI SCI protocol for allowing to perform a system-
wide SoC reset.

Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2018-09-11 08:32:55 -04:00
Tom Rini
e0ed8332fa Merge git://git.denx.de/u-boot-x86 2018-07-20 19:31:30 -04:00
Patrick Delaunay
1f6ca3f42f sysreset: syscon: update regmap access to syscon
Use new API syscon_node_to_regmap in sysreset_syscon driver
for compatible "syscon-reboot"; that's avoid the need of explicit
syscon binding for "regmap" handle.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-07-20 15:55:04 -04:00
Bin Meng
406be398ed dm: sysreset: Add a standard message when doing reset
It's good to print a message when doing reset.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-07-20 09:33:22 +08:00
Bin Meng
fabb2b4c7f dm: sysreset: x86: Add a sysreset driver
This adds a generic reset driver for x86 processor.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-07-20 09:33:22 +08:00
Michal Simek
cae39ae365 sysreset: Add support for Microblaze soft reset jump
Microblaze is storing reset vector at address 0x0.
It means soft reset can be done by just jumping to this address.
This code was in platform code but sysreset interface is providing
enough capabilities to have more options how to reset the system. It can
go from gpio reset through watchdog reset till soft reset.

The driver has not compatible string because this is cpu specific and DM
core is not able to detect compatible string in DT root that's why this
driver will be instantiated from platform code by calling
device_bind_driver(gd->dm_root, "mb_soft_reset", "reset_soft",
NULL);
It should be bind as the last reset method to ensure that hw reset is
called before this.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-07-19 10:49:55 +02:00
Michal Simek
0d832b3221 sysreset: Add support for gpio-restart
The Linux kernel has binding for gpio-restart node.
This patch is adding basic support without supporting any optional
properties.
This driver was tested on Microblaze system where gpio is connected to
SoC reset logic.
Output value is handled via gpios cells values.

In gpio_reboot_request() set_value is writing 1 because
dm_gpio_set_value() is capable to changing it when it is ACTIVE_LOW.
...
	if (desc->flags & GPIOD_ACTIVE_LOW)
		value = !value;
...

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-07-19 10:49:55 +02:00
Michal Simek
758de97bb8 sysreset: dm: Support manual relocation for sysreset
Relocate sysreset ops as was done by:
"dm: Add support for all targets which requires MANUAL_RELOC"
(sha1: 484fdf5ba0)

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-07-19 10:49:54 +02:00
Masahiro Yamada
8c1de5e08b regmap: clean up regmap allocation
Putting zero length array at the end of struct is a common technique
to embed arbitrary length of members.  There is no good reason to let
regmap_alloc_count() branch by "if (count <= 1)".

As far as I understood the code, regmap->base is an alias of
regmap->ranges[0].start, but it is not helpful but make the code
just ugly.

Rename regmap_alloc_count() to regmap_alloc() because the _count
suffix seems pointless.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: fixup cpu_info-rcar.c]
Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 15:15:27 -04:00
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
Tom Rini
d024236e5a Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTR
We have a large number of places where while we historically referenced
gd in the code we no longer do, as well as cases where the code added
that line "just in case" during development and never dropped it.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-27 14:54:48 -04:00
Álvaro Fernández Rojas
060690663d sysreset: syscon: convert to use live dt
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2018-04-10 11:52:16 -04:00
Jorge Ramirez-Ortiz
0689eb7470 db410c: replace reset driver with psci
this should be the norm for armv8 platforms.

Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
2018-01-15 16:29:03 -05:00
Philipp Tomsich
b53f6992e9 dm: reset: have the reset-command perform a COLD reset
The DM version of do_reset has been issuing a warm-reset, which (on
some platforms keeps GPIOs and other parts of the platform active).
This may cause unintended behaviour, as calling do_reset usually
indicates a desire to reset the board/platform and not just the CPU.

This changes do_reset to always request a COLD reset.
Note that programmatic uses can still invoke a WARM reset through
reset_cpu() or using sysreset_walk().

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-12-12 19:53:45 -07:00
Philipp Tomsich
f9ee57261f rockchip: sysreset: update Makefile to work with merged sysreset driver
After applying the merged sysreset driver, there are build failures
due to an out-of-sync Makefile. This updates drivers/sysreset/Makefile
to address these build failures.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-11-21 23:57:23 +01:00
Kever Yang
6ba54058ed rockchip: sysreset: merge into one common driver
Use a common driver for all Rockchip SOC instead of one for each SoC.
Use driver_data for reg offset.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-11-21 23:57:23 +01:00
Patrice Chotard
fb48bc448c sti: fix STMicroelectronics copyright
Uniformize all STMicroelectronics copyrights headers for STi
related code.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2017-11-06 09:51:01 -05:00