Commit graph

26 commits

Author SHA1 Message Date
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
Masahiro Yamada
9b643e312d treewide: replace with error() with pr_err()
U-Boot widely uses error() as a bit noisier variant of printf().

This macro causes name conflict with the following line in
include/linux/compiler-gcc.h:

  # define __compiletime_error(message) __attribute__((error(message)))

This prevents us from using __compiletime_error(), and makes it
difficult to fully sync BUILD_BUG macros with Linux.  (Notice
Linux's BUILD_BUG_ON_MSG is implemented by using compiletime_assert().)

Let's convert error() into now treewide-available pr_err().

Done with the help of Coccinelle, excluing tools/ directory.

The semantic patch I used is as follows:

// <smpl>
@@@@
-error
+pr_err
 (...)
// </smpl>

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: Re-run Coccinelle]
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-10-04 11:59:44 -04:00
Kever Yang
578ab33eab rockchip: enable rk322x sysreset driver
The sysreset driver for rk322x is ready but not enabled,
add it to Makefile to make sure it's enabled.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-09-18 20:40:32 +02:00
Kever Yang
a21e132894 rockchip: rk322x: add sysreset driver
Rockchip rk322x sysreset is much like rk3036 and other Rockchip SoCs,
only difference is that the target register address is different.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-07-11 12:13:46 +02:00
Andy Yan
2c1e11dd52 rockchip: Add core Soc start-up code for rv1108
RV1108 is embedded with an ARM Cortex-A7 single core and a DSP core
from Rockchip. It is designed for varies application scenario such
as car DVR, sports DV, secure camera and UAV camera.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-06-07 07:29:25 -06:00
Andy Yan
fe9d4e77ea rockchip: rk3368: Add sysreset driver
Add sysreset driver to reset rk3368 SOC.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-06-07 07:29:20 -06:00
Simon Glass
03753c9a7b dm: sandbox: sysreset: Convert driver to livetree
Update this driver to support a live device tree.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01 07:03:17 -06:00
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
a821c4af79 dm: Rename dev_addr..() functions
These support the flat device tree. We want to use the dev_read_..()
prefix for functions that support both flat tree and live tree. So rename
the existing functions to avoid confusion.

In the end we will have:

   1. dev_read_addr...()    - works on devices, supports flat/live tree
   2. devfdt_get_addr...()  - current functions, flat tree only
   3. of_get_address() etc. - new functions, live tree only

All drivers will be written to use 1. That function will in turn call
either 2 or 3 depending on whether the flat or live tree is in use.

Note this involves changing some dead code - the imx_lpi2c.c file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01 07:03:01 -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
Álvaro Fernández Rojas
17a0c14164 dm: sysreset: add watchdog-reboot driver
Add a new sysreset driver that uses the recently added watchdog support.
It performs a full SoC reset by calling wdt_expire_now op.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-31 14:49:54 +02:00
Álvaro Fernández Rojas
e388969178 sysreset: add syscon-reboot driver
Add a new sysreset driver based on linux/drivers/power/reset/syscon-reboot.c,
which provides a generic driver for platforms that only require writing a mask
to a regmap offset.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-10 16:16:09 +02:00
maxims@google.com
99f8ad7321 aspeed: Refactor AST2500 RAM Driver and Sysreset Driver
This change switches all existing users of ast2500 Watchdog to Driver
Model based Watchdog driver.

To perform system reset Sysreset Driver uses first Watchdog device found
via uclass_first_device call. Since the system is going to be reset
anyway it does not make much difference which watchdog is used.

Instead of using Watchdog to reset itself, SDRAM driver now uses Reset
driver to do that.

These were the only users of the old Watchdog API, so that API is
removed.

This all is done in one change to avoid having to maintain dual API for
watchdog in between.

Signed-off-by: Maxim Sloyko <maxims@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-08 11:57:32 -04:00
Masahiro Yamada
573a3811ed sysreset: psci: support system reset in a generic way with PSCI
If the system is running PSCI firmware, the System Reset function
(func ID: 0x80000009) is supposed to be handled by PSCI, that is,
the SoC/board specific reset implementation should be moved to PSCI.
U-Boot should call the PSCI service according to the arm-smccc
manner.

The arm-smccc is supported on ARMv7 or later.  Especially, ARMv8
generation SoCs are likely to run ARM Trusted Firmware BL31.  In
this case, U-Boot is a non-secure world boot loader, so it should
not be able to reset the system directly.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-04-18 10:29:19 -04:00
Heiko Stübner
4e5439ac25 rockchip: sysreset: rk3188: Make sure remap is off on warm-resets
The warm-reset of rk3188 socs keeps the remap setting as it was, so if
it was enabled, the cpu would start from address 0x0 of the sram instead
of address 0x0 of the bootrom, thus making the reset hang.

Therefore make sure the remap is disabled before attempting a warm reset.

Cold reset is not affected by this at all.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Simon Glass <sjg@chromium.org>
2017-04-15 10:13:17 -06:00
Kever Yang
52f6c17ecb rockchip: rk3328: add sysreset driver
Add rk3328 sysreset driver.

Signed-off-by: William Zhang <william.zhang@rock-chips.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
2017-03-16 16:03:46 -06:00
Heiko Stübner
37c07c5b1f rockchip: rk3188: Add sysreset driver
Driver for the sysreset of Rockchip rk3188 socs.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
2017-03-16 16:03:45 -06:00
Patrice Chotard
413788cef5 STiH410: Add STi sysreset driver
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-03-14 20:40:19 -04:00
Simon Glass
e160f7d430 dm: core: Replace of_offset with accessor
At present devices use a simple integer offset to record the device tree
node associated with the device. In preparation for supporting a live
device tree, which uses a node pointer instead, refactor existing code to
access this field through an inline function.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-02-08 06:12:14 -07:00
maxims@google.com
4697abea62 aspeed: Add drivers common to all Aspeed SoCs
Add support for Watchdog Timer, which is compatible with AST2400 and
AST2500 watchdogs. There is no uclass for Watchdog yet, so the driver
does not follow the driver model. It also uses fixed clock, so no clock
driver is needed.

Add support for timer for Aspeed ast2400/ast2500 devices.
The driver actually controls several devices, but because all devices
share the same Control Register, it is somewhat difficult to completely
decouple them. Since only one timer is needed at the moment, this should
be OK. The timer uses fixed clock, so does not rely on a clock driver.

Add sysreset driver, which uses watchdog timer to do resets and particular
watchdog device to use is hardcoded (0)
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-01-28 14:04:27 -05:00
Chris Zankel
7e270ec3af xtensa: add support for the 'xtfpga' evaluation board
The 'xtfpga' board is actually a set of FPGA evaluation boards that
can be configured to run an Xtensa processor.

 - Avnet Xilinx LX60
 - Avnet Xilinx LX110
 - Avnet Xilinx LX200
 - Xilinx ML605
 - Xilinx KC705

These boards share the same components (open-ethernet, ns16550 serial,
lcd display, flash, etc.).

Signed-off-by: Chris Zankel <chris@zankel.net>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-08-15 18:46:40 -04:00
Max Filippov
b25732c22b drivers/sysreset: group sysreset drivers
Create drivers/sysreset and move sysreset-uclass and all sysreset
drivers there.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2016-08-12 09:22:17 -04:00