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Add documentation for events, including the event command.
Signed-off-by: Simon Glass <[email protected]>
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For debugging and dicoverability it is useful to be able to see a list of
each event spy in a U-Boot ELF file. Add a script which shows this, along
with the event type and the source location. This makes events a little
easier to use than weak functions, for example.
Add a basic sandbox test as well. We could provide a test for other
boards, but for now, few use events.
Signed-off-by: Simon Glass <[email protected]>
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Add a command to show the available events.
Signed-off-by: Simon Glass <[email protected]>
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Instead of a special function, send an event after driver model is inited
and adjust the boards which use this function.
Signed-off-by: Simon Glass <[email protected]>
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This hook can be implmented using events, for the three boards that
actually use it.
Add the event type and event handlers. Drop CONFIG_MISC_INIT_F since we
can just use CONFIG_EVENT to control this. Since sandbox always enables
CONFIG_EVENT, we can drop the defconfig lines there too.
Signed-off-by: Simon Glass <[email protected]>
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Generate events when devices are probed or removed, allowing hooks
to be added for these situations.
This is controlled by the DM_EVENT config option.
Signed-off-by: Simon Glass <[email protected]>
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Call event_init() before relocation to get the event system running.
Signed-off-by: Simon Glass <[email protected]>
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Add a test for event registration and activation.
Signed-off-by: Simon Glass <[email protected]>
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Add a way to create and dispatch events without needing to allocate
memory. Also add a way to 'spy' on events, thus allowing 'hooks' to be
created.
Use a linker list for static events, which we can use to replace functions
like arch_cpu_init_f(). Allow an EVENT_DEBUG option which makes it
easier to see what is going on at runtime, but uses more code space.
Dynamic events allow the creation of a spy at runtime. This is not always
necessary, but can be enabled with EVENT_DYNAMIC if needed.
A 'test' event is the only option for now.
Signed-off-by: Simon Glass <[email protected]>
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Allow finding a symbol by its address. Also export the function to get
the file offset of a particular address, so it can be used by a script to
be added.
Signed-off-by: Simon Glass <[email protected]>
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These header files don't follow the correct order. Fix this.
Signed-off-by: Simon Glass <[email protected]>
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Some sunxi boards ship with SPI flash, which allows booting through the
BootROM. We cover this functionality by a separate SPL "mini" driver.
Separately we have a proper DM_SPI driver for U-Boot proper, which
provides access to the SPI flash through the "sf" command. That allows
to update the firmware on the SPI flash, also to store the environment
there.
However only very few boards actually enable support for U-Boot proper,
even though that would work and the SPL part is configured.
Use the cleaned up configuration scheme to enable SPI flash on those
boards which mention a SPI flash in their .dts, or which use the SPL SPI
support.
Out of the box this would enable storing the environment on the SPI
flash, and allows people to read or write the flash from U-Boot, for
instance to update the SPI flash when booted via an SD card.
For this to actually work there must be a "spi0" alias in the DT, which
most boards are missing. But this should be addressed separately.
Signed-off-by: Andre Przywara <[email protected]>
Reviewed-by: Jagan Teki <[email protected]>
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Now that sunxi uses CONFIG_SPI more sanely, and can also now properly
load the environment from SPI flash, let's enable the symbol that
actually considers the SPI flash when accessing the environment.
As this symbol depends on CONFIG_SPI, which we now only enable if the
board has a SPI flash, we can make if "default y" for all Allwinner
boards.
Signed-off-by: Andre Przywara <[email protected]>
Reviewed-by: Jagan Teki <[email protected]>
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Currently we only support to load the environment from raw MMC or FAT
locations on Allwinner boards. With the advent of SPI flash we probably
also want to support using the environment there, so we need to become
a bit more flexible.
Change the environment priority function to take the boot source into
account. When booted from eMMC or SD card, we use FAT or MMC, if
configured, as before.
If we are booted from SPI flash, we try to use the environment from
there, if possible. The same is true for NAND flash booting, although
this is somewhat theoretical right now (as untested).
This way we can use the same image for SD and SPI flash booting, which
allows us to simply copy a booted image from SD card to the SPI flash,
for instance.
Signed-off-by: Andre Przywara <[email protected]>
Reviewed-by: Jagan Teki <[email protected]>
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To allow loading and storing the environment from SPI flash, adjust the
raw offset variables for Allwinner boards to make sense there.
U-Boot (including SPL and other blobs) is loaded from the beginning of
SPI flash, so move the environment location as far back as possible, to
not create unnecessary limits. As those offsets are shared with (now
mostly unused) raw MMC environment, we should respect the common one
megabyte limit, which also makes sense on SPI flash.
So limit the environment for those raw locations to 64KB, and place it
just below 1MB (@960KB).
Those values are currently unused, unless someone forcibly enables the
raw MMC environment. In this case it would break as of now, as the
current offset of 544KB is far too low for the current (arm64) U-Boot
proper.
Signed-off-by: Andre Przywara <[email protected]>
Reviewed-by: Jagan Teki <[email protected]>
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Commit 7945caf22c44 ("arm: sunxi: Enable SPI/SPI-FLASH support for A64")
selected CONFIG_SPI by default on all Allwinner A64 boards, even though
only 4 out of the 14 A64 boards have a SPI flash chip. All other SoCs
had to manually select DM_SPI and friends, even though they are a
platform property (the sunxi SPI driver is DM_SPI only).
Clean this up to allow easy selection of SPI flash support in U-Boot
proper, by selecting DM_SPI and DM_SPI_FLASH *if* CONFIG_SPI is
selected, for *all* Allwinner SoCs. This simplifies the defconfig for
two Libretech boards already.
Also remove the forced CONFIG_SPI from the A64 Kconfig, instead let the
four boards which allow SPI booting select this explicitly.
Any board wishing to support SPI flash in U-Boot proper now just defines
CONFIG_SPI and CONFIG_SPI_FLASH_<vendor> in its defconfig, Kconfig takes
care of the rest.
Signed-off-by: Andre Przywara <[email protected]>
Reviewed-by: Jagan Teki <[email protected]>
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Mechanically convert video_hw_init() function to UCLASS_VIDEO probe
callback and replace CONFIG_CFB_CONSOLE by CONFIG_DM_VIDEO.
As framebuffer base address is setup by the bootloader which loads U-Boot,
set plat->base to that fixed framebuffer address.
This change was tested in qemu n900 machine and is working fine.
What does not work is CONFIG_VIDEO_LOGO, seems to be buggy.
Signed-off-by: Pali Rohár <[email protected]>
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When plat->base is set by driver then skip frame buffer reservation
and allocation.
Signed-off-by: Pali Rohár <[email protected]>
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Fixes the display of the u-boot logo on Apple silicon devices.
Signed-off-by: Janne Grunau <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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Ethernet phy like dp83867 is using strapping resistors to setup PHY
address. On Xilinx boards strapping is setup on wires which are connected
to SOC where internal pull ups/downs influnce phy address. That's why there
is a need to setup pins properly (via pinctrl driver for example) and then
perform phy reset. I can be workarounded by reset gpio done for mdio bus
but this is not working properly when multiply phys sitting on the same
bus. That's why it needs to be done via ethernet-phy-id driver where dt
binding has gpio reset per phy.
DT binding is available here:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/net/ethernet-phy.yaml
The driver is are reading the vendor and device id from valid phy node
using ofnode_read_eth_phy_id() and creating a phy device.
Kconfig PHY_ETHERNET_ID symbol is used because not every platform has gpio
support.
Signed-off-by: Michal Simek <[email protected]>
Signed-off-by: T Karthik Reddy <[email protected]>
Link: https://lore.kernel.org/r/70ab7d71c812b2c972d48c129e416c921af0d7f5.1645627539.git.michal.simek@xilinx.com
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Remove static return type for phy_device_create() to avoid file scope for
this function. Also add required prototype in phy.h.
Signed-off-by: Michal Simek <[email protected]>
Signed-off-by: T Karthik Reddy <[email protected]>
Link: https://lore.kernel.org/r/1517f4053403fbd53e899d500e7485d068a4f0b6.1645627539.git.michal.simek@xilinx.com
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Add new function to get ethernet phy id from compatible property
of the mdio phy node.
Signed-off-by: Michal Simek <[email protected]>
Signed-off-by: T Karthik Reddy <[email protected]>
Link: https://lore.kernel.org/r/16019efb3820a50330935fdaae191cec1f101b5c.1645627539.git.michal.simek@xilinx.com
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ehci-zynq.c is assigned to Zynq and ZynqMP that's why remove one.
Signed-off-by: Michal Simek <[email protected]>
Link: https://lore.kernel.org/r/d97779178fa56f1c6af40f5604b0bf349002cd36.1646639027.git.michal.simek@xilinx.com
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This patch adds psu_init for Xilinx ZCU106 rev1.0. Xilinx ZCU106 rev1.0 has
newer x16 DDR4 memories and it is SW compatible with revA.
Signed-off-by: Neal Frager <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
Link: https://lore.kernel.org/r/997b3e23457e4d24ce0e197d742382aaec36c2b2.1646230318.git.michal.simek@xilinx.com
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During sequential loading of data, hold the bus to prevent controller
from sending stop signal in case no data is available in fifo.
Signed-off-by: Sai Pavan Boddu <[email protected]>
Reviewed-by: Ashok Reddy Soma <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
Link: https://lore.kernel.org/r/2407b39d305999cb42438c5423aebc3b514acabb.1646122610.git.michal.simek@xilinx.com
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Start write transfer after loading data to FIFO.
Signed-off-by: Sai Pavan Boddu <[email protected]>
Reviewed-by: Ashok Reddy Soma <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
Link: https://lore.kernel.org/r/f0b3e443daa7758e00dfdcc245cf6b2120b0e907.1646122610.git.michal.simek@xilinx.com
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Avoid a race condition where read transaction is started
keeping expected bytes as 0. Which sometimes would result in sending
STOP signal as no data is expected. Observed on QEMU platform.
Signed-off-by: Sai Pavan Boddu <[email protected]>
Reviewed-by: Ashok Reddy Soma <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
Link: https://lore.kernel.org/r/487c8026791bfd60719403a2df2c54bb0ae99232.1646122610.git.michal.simek@xilinx.com
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Display Port (DP) has own dma driver that's why add this skeleton driver
only for handling power domain setting and send configuration object to
PMUFW to enable it.
Signed-off-by: Michal Simek <[email protected]>
Link: https://lore.kernel.org/r/fe8bc313bcd430b04e9fa6fb770d5799ef28b350.1645627920.git.michal.simek@xilinx.com
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The reason for this driver is to use call power management driver to enable
it in PMUFW. There is missing functionality now but should be added in
near future.
Signed-off-by: Michal Simek <[email protected]>
Link: https://lore.kernel.org/r/598cb9515bbabc803f72e287464e3d107cd106a3.1645627920.git.michal.simek@xilinx.com
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Add support for dynamic configuration which will takes care of
configuring the SD secure space configuration registers using firmware
APIs, performing SD reset assert and deassert.
High level sequence:
- Check for the PM dynamic configuration support, if no error proceed
with SD dynamic configurations(next steps) otherwise skip the dynamic
configuration.
- Put the SD Controller in reset.
- Configure SD Fixed configurations.
- Configure the SD Slot Type.
- Configure the BASE_CLOCK.
- Configure the 8-bit support.
- Bring the SD Controller out of reset.
In the above steps, apart from the Fixed configurations, remaining all
configurations are dynamic and they will be read from devicetree.
And also remove hardcoded secure register writes, as dynamic sd config
support is added.
Signed-off-by: Ashok Reddy Soma <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
Link: https://lore.kernel.org/r/030a3ec041ff3efebd574b4d2b477ad85f12cbce.1645626962.git.michal.simek@xilinx.com
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Most of the frequencies are not rounded up to a proper number.
When we need to devide these frequencies to get a number for example
frequency in Mhz, we see it as one less than the actual intended value.
Ex: If we want to get Mhz from frequency 199999994hz, we will calculate
it using div64_u64(199999994, 1000000) and we will get 199Mhz in place
of 200Mhz.
Add a macro DIV64_U64_ROUND_UP for rounding up div64_u64. This is taken
from linux 'commit 68600f623d69("mm: don't miss the last page because of
round-off error")'.
Signed-off-by: Ashok Reddy Soma <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
Link: https://lore.kernel.org/r/f9fdcba76cd692ae436b1d7883b490e3dc207231.1645626962.git.michal.simek@xilinx.com
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Add firmware API's to set SD configuration and to check if a purticular
function is supported.
Signed-off-by: Ashok Reddy Soma <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
Link: https://lore.kernel.org/r/f64fa2f73e4775e9ad2f4d91339d6c74b43116a3.1645626962.git.michal.simek@xilinx.com
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Update enum pm_ioctl_id with more IOCTLs.
Add enum pm_sd_config_type to support dynamic sd configuration.
Signed-off-by: Ashok Reddy Soma <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
Link: https://lore.kernel.org/r/9aba090ec11d2591dbe6978e73e64384873c99fc.1645626962.git.michal.simek@xilinx.com
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- serial uclass fix, mailmap/gitignore updates
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Since commit 5d94cbd1dca7 ("scripts: Makefile.lib: generate
dsdt_generated.c instead of dsdt.c"), the file generated
is named dsdt_generated.c instead of dsdt.c.
So all files .gitignore referencing dsdt.c should be
upated with dsdt_generated.c.
Signed-off-by: Philippe Reynes <[email protected]>
Reviewed-by: Heinrich Schuchardt <[email protected]>
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The stdout-path property in the device tree does not necessarily
point at a serial device. On machines such as the Apple M1 laptops
where the serial port isn't easy to access and users expect to see
console output on the integrated display stdout-path may point at
the device tree node for the framebuffer for example.
If stdout-path does not point at a node for a serial device, the
serial_check_stdout() will not find a bound device and will drop
down into code that attempts to use lists_bind_fdt() to bind a
device anyway. However, that fallback code does not check that
the uclass of the device is UCLASS_SERIAL. So if stdout-path points
at the framebuffer instead of the serial device it will return a
UCLASS_VIDEO device. Since the code that calls this function
expects the returned device to be a UCLASS_SERIAL device, U-Boot
will crash as soon as it attempts to send output to the console.
Add a check here to verify that the uclass of the bound device
really is UCLASS_SERIAL. If it isn't, serial_check_stdout() will
return an error and serial_find_console_or_panic() will use the
serial device with sequence number 0 as the console and all is fine.
Signed-off-by: Mark Kettenis <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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There is one issue with Heinrich [email protected] <[email protected]>
record which should be specifically grouped with his name.
Signed-off-by: Michal Simek <[email protected]>
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- Update MAINTAINERS file (Stefan)
- wdt-uclass.c: add a property u-boot, noautostart (Philippe)
- armada_37xx: Probe driver also when watchdog is already running (Pali)
- rti_wdt: Add 10% safety margin to clock frequency (Jan)
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When running against RC_OSC_32k, the watchdog may suffer from running
faster than expected, expiring earlier. The Linux kernel adds a 10%
margin to the timeout calculation by slowing down the read clock rate
accordingly. Do the same here, also to have comparable preset values
for both drivers.
Along this, fix the name of the local var holding to frequency - in Hz,
not kHz.
Signed-off-by: Jan Kiszka <[email protected]>
Signed-off-by: Stefan Roese <[email protected]>
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If Armada 37xx watchdog is started before U-Boot then CNTR_CTRL_ACTIVE bit
is set, U-Boot armada-37xx-wdt.c driver fails to initialize and so U-Boot
is unable to use or kick this watchdog.
Do not check for CNTR_CTRL_ACTIVE bit and always initialize watchdog. Same
behavior is implemented in Linux kernel driver.
This change allows to activate watchdog in firmware which loads U-Boot.
Signed-off-by: Pali Rohár <[email protected]>
Reviewed-by: Marek Behún <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
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Since commit 492ee6b8d0e7 ("watchdog: wdt-uclass.c: handle all DM
watchdogs in watchdog_reset()"), all the watchdog are started when
the config WATCHDOG_AUTOSTART.
To avoid a binary choice none/all, a property u-boot,noautostart
may be added in the watchdog node of the u-boot device tree to not
autostart this watchdog.
Signed-off-by: Philippe Reynes <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
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I've been handling "inofficially" the watchdog related patches for a few
years now. Let's make this official and add a tree for it and also add
myself here in the MAINTAINERS file.
Signed-off-by: Stefan Roese <[email protected]>
Cc: Tom Rini <[email protected]>
Cc: Harald Seiler <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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- bcm6753 support
- Aspeed GPIO driver
- AM33xx DT-related MMC updates
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Build in the driver for the Aspeed GPIO controller and turn on the
`gpio` shell command.
Signed-off-by: Andrew Jeffery <[email protected]>
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Populate gpio_count in the gpio subsystem for the AST2500.
Signed-off-by: Andrew Jeffery <[email protected]>
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The Aspeed GPIO driver supports the GPIO controllers found in the
AST2400, AST2500 and AST2600 BMC SoCs. The implementation is a cut-down
copy of the upstream Linux kernel driver, adapted for u-boot.
Signed-off-by: Andrew Jeffery <[email protected]>
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This code has been ported from Linux v5.16.9 arch/arm/boot/dts/am33xx.dtsi
file to allow correct usage of MMC2 controller in U-Boot.
This IP block is a bit specific as it is connected to L3 interconnect bus,
whereas mmc[01] are connected to L4.
Proper configuration of this block (including providing clock) is handled
in ti-sysc.c driver.
Signed-off-by: Lukasz Majewski <[email protected]>
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This change provides similar aliases definitions as now present in
Linux kernel v5.16.9 for am33xx.dtsi file.
Signed-off-by: Lukasz Majewski <[email protected]>
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In the Linux kernel (v5.16) for this SoC there are two separate drivers
- namely sdhci-omap.c and omap_hsmmc.c which have separate set of
compatibles.
The U-Boot's drivers/mmc/omap_hsmmc.c driver supports both eMMC and
SD devices - hence the compatible for SDHCI can be added.
After this change the am335x DTS description can be easier ported
from Linux kernel.
Signed-off-by: Lukasz Majewski <[email protected]>
Reviewed-by: Jaehoon Chung <[email protected]>
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Enable the led support on the refboard bcm96753ref.
Signed-off-by: Philippe Reynes <[email protected]>
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