Commit graph

56591 commits

Author SHA1 Message Date
Philipp Tomsich
7e0e5c552f rockchip: spi: only wait for completion, if transmitting
The logic in the main transmit loop took a bit of reading the TRM to
fully understand (due to silent assumptions based in internal logic):
the "wait until idle" at the end of each iteration through the loop is
required for the transmit-path as each clearing of the ENA register
(to update run-length in the CTRLR1 register) will implicitly flush
the FIFOs... transmisson can therefore not overlap loop iterations.

This change adds a comment to clarify the reason/need for waiting
until the controller becomes idle and wraps the entire check into an
'if (out)' to make it clear that this is required for transfers with a
transmit-component only (for transfers having a receive-component,
completion of the transmit-side is trivially ensured by having
received the correct number of bytes).

The change does not increase execution time measurably in any of my
tests.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-05-01 00:00:04 +02:00
Philipp Tomsich
b6101e906f rockchip: spi: consistently use false/true with rkspi_enable_chip
While rkspi_enable_chip is called with true/false everywhere else in
the file, one call site uses '0' to denot 'false'.
This change this one parameter to 'false' and effects consistency.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-05-01 00:00:04 +02:00
Philipp Tomsich
e647decdd9 rockchip: spi: fix off-by-one in chunk size computation
The maximum transfer length (in a single transaction) for the Rockchip
SPI controller is 64Kframes (i.e. 0x10000 frames) of 8bit or 16bit
frames and is encoded as (num_frames - 1) in CTRLR1.  The existing
code subtracted the "minus 1" twice for a maximum transfer length of
0xffff (64K - 1) frames.

While this is not strictly an error (the existing code is correct, but
leads to a bit of head-scrating), fix this off-by-one situation.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-05-01 00:00:04 +02:00
Philipp Tomsich
0e661b6df0 rockchip: spi: remove unused code and fields in priv
Even though the priv-structure and the claim-bus function contain
logic for 16bit frames and for unidirectional transfer modes, neither
of these is used anywhere in the driver.

This removes the unused (as in "has no effect") logic and fields.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-05-01 00:00:04 +02:00
Philipp Tomsich
f92cf0adca rockchip: spi: add debug message for delay in CS toggle
In analysing delays introduced for large SPI reads, the absence of any
indication when a delay was inserted (to ensure the CS toggling is
observed by devices) became apparent.

Add an additional debug-only debug message to record the insertion and
duration of any delay (note that the debug-message will cause a delay
on-top of the delay-duration).

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-05-01 00:00:04 +02:00
Philipp Tomsich
4abf5d0c02 rockchip: rk3399-puma: support Gigadevice SPI-NOR flash
Over the last quarter, a part of our production has used NOR flash
from Gigadevice in addition to the Winbond parts that we typically
source.  This requires the SPI_FLASH_GIGADEVICE config to be set.

Enable SPI_FLASH_GIGADEVICE in the board's default defconfig.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Klaus Goger <klaus.goger@theobroma-systems.com>
2019-05-01 00:00:03 +02:00
Tom Rini
a69120a0d7 Prepare v2019.07-rc1
Signed-off-by: Tom Rini <trini@konsulko.com>
2019-04-29 21:54:04 -04:00
Simon Goldschmidt
f89d6133ee configs: move CONFIG_SPL_TEXT_BASE to Kconfig
Moved CONFIG_SPL_TEXT_BASE to common/spl/Kconfig and migrate existing
values.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
[trini: Re-run migration]
Signed-off-by: Tom Rini <trini@konsulko.com>
2019-04-29 21:41:40 -04:00
Tom Rini
d168bcb6fe configs: Resync with savedefconfig
Rsync all defconfig files using moveconfig.py

Signed-off-by: Tom Rini <trini@konsulko.com>
2019-04-29 21:41:40 -04:00
Tom Rini
6aebc0d11a Revert "fs: btrfs: fix false negatives in ROOT_ITEM search"
Per Pierre this change shouldn't have been applied as it was superseded
by "fs: btrfs: fix btrfs_search_tree invalid results" which is also
applied now as 1627e5e598.

This reverts commit 633967f981.

Signed-off-by: Tom Rini <trini@konsulko.com>
2019-04-27 11:35:44 -04:00
Tom Rini
6b8e57338f Merge branch '2019-04-27-master-imports'
- Various vexpress, taurus, da850evm, lpc32xx, brxre1 fixes/updates
- btrfs fixes
- Add AM65x HS EVM
- Other small fixes
2019-04-27 10:42:36 -04:00
Igor Opaniuk
fc1fe01b08 avb: add support for named persistent values
AVB 2.0 spec. revision 1.1 introduces support for named persistent values
that must be tamper evident and allows AVB to store arbitrary key-value
pairs [1].

Introduce implementation of two additional AVB operations
read_persistent_value()/write_persistent_value() for retrieving/storing
named persistent values.

Correspondent pull request in the OP-TEE OS project repo [2].

[1]: https://android.googlesource.com/platform/external/avb/+/android-9.0.0_r22
[2]: https://github.com/OP-TEE/optee_os/pull/2699

Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Igor Opaniuk <igor.opaniuk@gmail.com>
2019-04-26 18:58:22 -04:00
Heinrich Schuchardt
b85d155199 arm: dts: add missing vexpress device trees
Add the device trees for

* vexpress_ca5x2_defconfig
* vexpress_ca9x4_defconfig
* vexpress_ca15_tc2_defconfig

as available in Linux 5.1 rc5.

We are using the vexpress_ca15_tc2_defconfig and vexpress_ca9x4_defconfig
for Travis testing via QEMU.

The UEFI base Embedded Base Boot Requirements Specification (EBBR) requires
that an embedded board either provides a device tree or an ACPI table.

All block devices are meant to be moved to the driver model. On ARM this
requires a device tree.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-04-26 18:58:22 -04:00
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
Robert P. J. Day
9ad996adcc doc: delete long-obsolete README.ARM-memory-map
As far back as 2011, "_armboot_start" was being described as "no
longer defined":

 commit 297f18ac0f
 Author: Greg Ungerer <greg.ungerer@opengear.com>
 Date:   Fri Sep 9 22:23:34 2011 +1000

   CM4000: fix broken flash base for OpenGear boards

   Use _bss_start_ofs as the size of the boot loader code+data that we want
   to protect in the flash. This replaces use of the no longer defined
   _armboot_start.
2019-04-26 18:58:22 -04:00
Baruch Siach
71d8e1b829 .gitignore: Ignore .log files
The generated flash.log file that mach-imx uses for MKIMAGEOUTPUT is not
covered by any other ignore pattern. Ignore all *.log files.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
2019-04-26 18:58:21 -04:00
Adam Ford
cd2d8245ac ARM: da850evm: Fix TI boot scripts for MMC
The da850evm include environment/ti/mmc.h and places
DEFAULT_MMC_TI_ARGS, defined int that file, in
CONFIG_EXTRA_ENV_SETTINGS.  This has been broken for some time
since neither CMD_PART nor CMD_UUID are available, so manually
changing the environmental variables was always required before
booting from MMC. With this patch, these scripts should work
again, and by default they point to mmc 0, partition 2, and
the dtb file exists in a /boot directory on partition 2.

Signed-off-by: Adam Ford <aford173@gmail.com>
2019-04-26 18:58:21 -04:00
Adam Ford
fd3c26f3f9 ARM: da850evm: Fix broken SPI Flash
A previous patch converted a bunch of settings for CONFIG_SF_DEFAULT
but it broke the SPI Flash which now prevents booting.  This patch
now correctly sets CONFIG_SF_DEFAULT_SPEED=30000000 to match what it
was before the conversion.

Fixes: 14453fbfad ("Convert CONFIG_SF_DEFAULT_* to Kconfig")

Signed-off-by: Adam Ford <aford173@gmail.com>
2019-04-26 18:58:21 -04:00
Björn Stenberg
2b4ea2b344 fw_env: Fix double free
addr0 is being freed twice, leading to segmentation fault

Signed-off-by: Björn Stenberg <bjorn@haxx.se>
2019-04-26 18:58:21 -04:00
Gregory CLEMENT
c8aac24629 arm: lpc32xx: Fix timer initialization
The match controller register is not cleared during
initialization. However, some bits of this register may reset the TC if
tnMRx match it.

As we can't make any assumption about how U-Boot is launched by the first
stage bootloader (such as S1L) clearing this register ensure that the
timers work as expected.

Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
2019-04-26 18:58:20 -04:00
Gregory CLEMENT
32dfc12b70 net: lpc32xx: Use IRAM for transmit buffer
Since the introduction of the driver, some memory in IRAM is reserved for
the TX buffers.

However there are not used but instead of it, it is the buffer provided
by the net stack which is used. As stated in the comment of the driver,
not using the IRAM buffer could cause cache issue and lower the
throughput.

For the second argument it is less the case for transmitting buffers
because the throughput gain in IRAM is mitigated by the time to copy the
data from RAM to IRAM, but the first argument is still valid and indeed
this patch fixes issue seen with Ethernet on some boards

Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
2019-04-26 18:58:20 -04:00
Gregory CLEMENT
5f626e7849 mtd: nand: raw: Fix CONFIG_SYS_NAND_DRIVER_ECC_LAYOUT behavior
The purpose of "mtd: nand: raw: allow to disable unneeded ECC layouts"
was to allow disabling the default ECC layouts if a driver is known to
provide its own ECC layout. However, this commit did the opposite and
disabled the default layout when it was _not_ selected.

It breaks all the NAND drivers not providing their own ECC layout this
patch fix this situation.

It was tested with the lpc32xx_nand_slc driver.

Fixes: a38c3af868 ("mtd: nand: raw: allow to disable unneeded ECC layouts")
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Tested-by: Eugen Hristev <eugen.hristev@microchip.com>
2019-04-26 18:58:20 -04:00
Heiko Schocher
e9cde87ec1 dtb_platdata.py: prevent define generation of alias
generate define for an alias only if the struct is not
created already.

This prevents compilerwarning:
  PLAT    spl/dts/dt-platdata.o
spl/dts/dt-platdata.c:11:46: error: missing braces around initializer [-Werror=missing-braces]
 static const struct dtd_simple_bus dtv_ahb = {
                                              ^
spl/dts/dt-platdata.c:20:46: error: missing braces around initializer [-Werror=missing-braces]
 static const struct dtd_simple_bus dtv_apb = {
                                              ^
cc1: all warnings being treated as errors

on the at91 based taurus board. Reason is in at91sam9260.dtsi
is defined:

ahb {
        compatible = "simple-bus";
        ranges;

and later:

pinctrl: pinctrl@fffff400 {
        compatible = "atmel,at91rm9200-pinctrl", "simple-bus";
        ranges = <0xfffff400 0xfffff400 0x600>;

without this patch dtoc generates:

struct dtd_atmel_at91rm9200_pinctrl {
	fdt32_t		atmel_mux_mask[6];
	fdt32_t		ranges[3];
	fdt32_t		reg[6];
};

struct dtd_simple_bus {
        bool            ranges;
};

"#define dtd_simple_bus dtd_atmel_at91rm9200_pinctrl"

and the line with "define dtd_simple_bus..." introduces
the warning. This define is not needed.

Signed-off-by: Heiko Schocher <hs@denx.de>
2019-04-26 18:58:20 -04:00
Pierre Bourdon
1627e5e598 fs: btrfs: fix btrfs_search_tree invalid results
btrfs_search_tree should return the first item in the tree that is
greater or equal to the searched item.

The search algorithm did not properly handle the edge case where the
searched item is higher than the last item of the node but lower than
the first item of the next node. Instead of properly returning the first
item of the next node, it was returning an invalid path pointer
(pointing to a non-existent item after the last item of the node + 1).

This fixes two issues in the btrfs driver:
  - Looking for a ROOT_ITEM could fail if it was the first item of its
    leaf node.
  - Iterating through DIR_INDEX entries (for readdir) could fail if the
    first DIR_INDEX entry was the first item of a leaf node.

Signed-off-by: Pierre Bourdon <delroth@gmail.com>
Cc: Marek Behun <marek.behun@nic.cz>
2019-04-26 17:53:16 -04:00
Ismael Luceno Cortes
423eba241d fs: fat: Build only if CONFIG_FS_FAT=y
Signed-off-by: Ismael Luceno <ismael.luceno@silicon-gears.com>
2019-04-26 17:53:16 -04:00
Pierre Bourdon
633967f981 fs: btrfs: fix false negatives in ROOT_ITEM search
ROOT_ITEMs in btrfs are referenced without knowing their actual "offset"
value. To perform these searches using only two items from the key, the
btrfs driver uses a special "btrfs_search_tree_key_type" function.

The algorithm used by that function to transform a 3-tuple search into a
2-tuple search was subtly broken, leading to items not being found if
they were the first in their tree node.

This commit fixes btrfs_search_tree_key_type to properly behave in these
situations.

Signed-off-by: Pierre Bourdon <delroth@gmail.com>
Cc: Marek Behun <marek.behun@nic.cz>
2019-04-26 17:53:15 -04:00
Andrew F. Davis
74ee9dc502 doc: Update info on using K3 secure devices
Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Andreas Dannenberg <dannenberg@ti.com>
2019-04-26 17:51:51 -04:00
Andrew F. Davis
0a4b11b027 configs: Add configs for AM65x High Security EVM
Add new defconfig files for the AM65x High Security EVM.

This defconfigs are the same as for the non-secure part, except for:
    CONFIG_TI_SECURE_DEVICE option set to 'y'
    CONFIG_FIT_IMAGE_POST_PROCESS option set to 'y'
    CONFIG_SPL_FIT_IMAGE_POST_PROCESS option set to 'y'

Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Andreas Dannenberg <dannenberg@ti.com>
2019-04-26 17:51:51 -04:00
Andrew F. Davis
508369672c arm: mach-k3: Add secure device build support
K3 HS devices require signed binaries for boot, use the SECDEV tools
to sign the boot artifacts during build.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Andreas Dannenberg <dannenberg@ti.com>
2019-04-26 17:51:51 -04:00
Andrew F. Davis
3a543a8084 arm: mach-k3: Add secure device support
K3 devices have High Security (HS) variants along with the non-HS already
supported. Like the previous generation devices (OMAP/Keystone2) K3
supports boot chain-of-trust by authenticating and optionally decrypting
images as they are unpacked from FIT images. Add support for this here.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Andreas Dannenberg <dannenberg@ti.com>
2019-04-26 17:51:51 -04:00
Andrew F. Davis
ff6043a5fd firmware: ti_sci: Modify auth_boot TI-SCI API to match new version
SYSFW version 2019.01 introduces a slightly modified version of this API,
add support for it here.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Andreas Dannenberg <dannenberg@ti.com>
2019-04-26 17:51:51 -04:00
Andrew F. Davis
32ca8ffd5b firmware: ti_sci: Add support for firewall management
TI-SCI message protocol provides support for controlling the firewall
configurations available in SoC.

Introduce support for the set of TI-SCI message protocol APIs that
provide us with this capability of controlling firewalls.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Andreas Dannenberg <dannenberg@ti.com>
2019-04-26 17:51:51 -04:00
Andrew F. Davis
407a219261 arm: K3: Avoid use of MCU_PSRAM0 before SYSFW is loaded
On HS devices the 512b region of reset isolated memory called
MCU_PSRAM0 is firewalled by default. Until SYSFW is loaded we
cannot use this memory. It is only used to store a single value
left at the end of SRAM by ROM that will be needed later. Save
that value to a global variable stored in the .data section.
This section is used as .bss will be cleared between saving
this value and using it.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Andreas Dannenberg <dannenberg@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
2019-04-26 17:51:51 -04:00
Heiko Schocher
b07cc48ca1 main: add new bootstage ID for entering cli loop
adding a new bootstage ID:
BOOTSTAGE_ID_ENTER_CLI_LOOP

Signed-off-by: Heiko Schocher <hs@denx.de>
2019-04-26 17:51:51 -04:00
Patrice Chotard
ee8a4a3f9d cmd: pxe: Display splashscreen from extlinux.conf input
The objective is to provide a simple way to retrieve a BMP file,
and display it as splashscreen, from extlinux.conf file input.

For this, we take example on https://www.syslinux.org/wiki/
index.php?title=Menu#The_advanced_menu_system
and more particularly on MENU BACKGROUND chapter.
For this, add "menu background" support in pxe command.

As example, extlinux.conf content will look like:

# Generic Distro Configuration file generated by OpenEmbedded
menu title Select the boot mode
TIMEOUT 20
menu background ../splash.bmp
DEFAULT stm32mp157c-ev1-sdcard
LABEL stm32mp157c-ev1-sdcard
	KERNEL /uImage
	FDT /stm32mp157c-ev1.dtb
	APPEND root=/dev/mmcblk0p6 rootwait rw earlyprintk console=ttySTM0,115200

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2019-04-26 17:51:51 -04:00
Pierre Bourdon
9bdfe290e9 tools/Makefile: get openssl CFLAGS from pkg-config
Fixes building mkimage on systems where OpenSSL header files do not
live in the standard include path.

Signed-off-by: Pierre Bourdon <delroth@gmail.com>
2019-04-26 17:51:51 -04:00
Heinrich Schuchardt
3174cafd9c disk: part: fix typo
%g/rathen then/rather than/

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2019-04-26 17:51:51 -04:00
Hannes Schmelzer
1d260739bd board/BuR/brxre1: use common resetcontroller implementation
The handling of regarding bootmode and early setup has been moved to
central location 'common/br_resetc.c', so use this on brxre1 board.

Signed-off-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
2019-04-26 17:51:51 -04:00
Hannes Schmelzer
2b1e242423 board/BuR/brxre1: cosmetic cleanup
- fixup coding style
- drop unused 'PUSH_KEY' define

Signed-off-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
2019-04-26 17:51:51 -04:00
Hannes Schmelzer
f4b9f0bdba board/BuR/common: add br resetcontoller implementation
On many B&R boards we have a reset-controller, responsible for very
early board-bringup (voltages, clocks, ...) and bootmode selection.

To be ready for adding more B&R boards to source tree while avoiding
duplicate code, we add the resetcontroller implementation to the common
part of B&R boards.

Signed-off-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
2019-04-26 17:51:51 -04:00
Hannes Schmelzer
2fac7a8294 board/BuR/common: add 'brdefaulip_setup' function
Many B&R boards are equipped with an I2C-EEPROM where various
information can be stored.

Today there is only a single byte for 'board_id' used.

We write this 'board_id' into environment for later use during boot.

If the value != 0xFF, meaning the byte is programmed, we modify the
"brdefaultip" environment variable for setting an IP-Address based on
board_id.

Signed-off-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
2019-04-26 17:51:51 -04:00
Hannes Schmelzer
47656d98bd board/BuR/common: cosmetic: move 'overwrite_console' up to more related stuff
Signed-off-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
2019-04-26 17:51:51 -04:00
Hannes Schmelzer
ad6be25c19 board/BuR/common: prepare for compiling common into non AM33XX boards
Today the BuR common stuff is only used on AM33XX boards. In future we
plan to have many other platforms than AM33XX so we have to move arch-
specific #include(s) to responsible #ifdef sections. By the way we drop
unneeded #include(s).

Signed-off-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
2019-04-26 17:51:51 -04:00
Tom Rini
07b68b7843 Merge git://git.denx.de/u-boot-marvell
- Add DM based generic watchdog start and reset implementation
  and remove all ad-hoc implementations (Stefan)
- Move mv_sdhci to DM (Pierre)
- Misc turris_omnia updates (Pierre)
- Change openrd targets to correctly build again (size changes
  and fixes to the dts targets) and bring it back into Travis
  builds (Stefan)
- Add Kirkwood db-88f6281-bp board (Chris)
2019-04-26 13:50:00 -04:00
Tom Rini
1c64692df2 Merge branch 'master' of git://git.denx.de/u-boot-socfpga 2019-04-26 13:49:58 -04:00
Stefan Roese
b684d4031b arm: kirkwood: openrd: Mark openrd boards as maintained again
With the latest size increase of the openrd boards, they all compile
clean again. Let's mark them as maintained again and add the Travis
job.

Please note that I can only compile-test these targets as I don't
have access to one of those boards.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Albert ARIBAUD <albert-u-boot@aribaud.net>
Cc: Vagrant Cascadian <vagrant@debian.org>
Cc: Chris Packham <judge.packham@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
2019-04-26 09:16:32 +02:00
Stefan Roese
c2ff69a444 watchdog: at91sam9_wdt: Remove now superfluous wdt start and reset
With the new generic function, the scattered other functions are now
removed to be replaced by the generic one. The new version also enables
the configuration of the watchdog timeout via the DT "timeout-sec"
property (if enabled via CONFIG_OF_CONTROL).

The watchdog servicing is enabled via CONFIG_WATCHDOG.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Heiko Schocher <hs@denx.de>
Cc: Eugen Hristev <eugen.hristev@microchip.com>
2019-04-26 09:16:32 +02:00
Stefan Roese
f3729ba6e7 watchdog: mpc8xx_wdt: Watchdog driver and macros cleanup
With the generic watchdog driver now implemented, this patch removes
some legacy stuff from the MPC8xx watchdog driver and its Kconfig
integration. CONFIG_MPC8xx_WATCHDOG is completely removed and
hw_watchdog_reset() is made static, as the watchdog will now get
serviced via the DM infrastructure if enabled via CONFIG_WATCHDOG.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
2019-04-26 09:16:32 +02:00
Stefan Roese
782ef57edc watchdog: cadence: Remove driver specific "timeout-sec" handling
Now that we have a generic DT property "timeout-sec" handling, the
driver specific implementation can be dropped.

This patch also changes the timeout restriction to the min and max
values (clipping). Before this patch, the value provided via
"timeout-sec" was used if the parameter was too high or low. Now
the driver specific min and max values are used instead.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Tested-by: Michal Simek <michal.simek@xilinx.com> (on zcu100)
2019-04-26 09:16:32 +02:00
Stefan Roese
06985289d4 watchdog: Implement generic watchdog_reset() version
This patch tries to implement a generic watchdog_reset() function that
can be used by all boards that want to service the watchdog device in
U-Boot. This watchdog servicing is enabled via CONFIG_WATCHDOG.

Without this approach, new boards or platforms needed to implement a
board specific version of this functionality, mostly copy'ing the same
code over and over again into their board or platforms code base.

With this new generic function, the scattered other functions are now
removed to be replaced by the generic one. The new version also enables
the configuration of the watchdog timeout via the DT "timeout-sec"
property (if enabled via CONFIG_OF_CONTROL).

This patch also adds a new flag to the GD flags, to flag that the
watchdog is ready to use and adds the pointer to the watchdog device
to the GD. This enables us to remove the global "watchdog_dev"
variable, which was prone to cause problems because of its potentially
very early use in watchdog_reset(), even before the BSS is cleared.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Heiko Schocher <hs@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: "Marek Behún" <marek.behun@nic.cz>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Maxim Sloyko <maxims@google.com>
Cc: Erik van Luijk <evanluijk@interact.nl>
Cc: Ryder Lee <ryder.lee@mediatek.com>
Cc: Weijie Gao <weijie.gao@mediatek.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: "Álvaro Fernández Rojas" <noltari@gmail.com>
Cc: Philippe Reynes <philippe.reynes@softathome.com>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Tested-by: Michal Simek <michal.simek@xilinx.com> (on zcu100)
2019-04-26 09:16:32 +02:00