u-boot.git/common/Makefile, branch v2023.04

usb: USB hubs require host mode

2023-03-10T16:31:31+00:00

USB hubs run in host mode not in gadget mode. Hence, compiling usb_hub.c
should not be selected by CONFIG_USB_GADGET.

Suggested-by: Marek Vasut 
Signed-off-by: Heinrich Schuchardt 
Reviewed-by: Marek Vasut

cli: Move readline character-processing to a state machine

2023-01-16T19:14:11+00:00

The current cread_line() function is very long. It handles the escape
processing inline. The menu command does similar processing but at the
character level, so there is some duplication.

Split the character processing into a new function cli_ch_process() which
processes individual characters and returns the resulting input character,
taking account of escape sequences. It requires the caller to set up and
maintain its state.

Update cread_line() to use this new function.

The only intended functional change is that an invalid escape sequence
does not add invalid/control characters into the input buffer, but instead
discards these.

Signed-off-by: Simon Glass

usb: onboard-hub: add driver to manage onboard hub supplies

2023-01-12T15:19:53+00:00

The main issue the driver addresses is that a USB hub needs to be
powered before it can be discovered. This is often solved by using
"regulator-always-on".

This driver is inspired by the Linux v6.1 driver. It only enables (or
disables) the hub vdd (3v3) supply, so it can be enumerated.
Scanning of the device tree is done in a similar manner to the sandbox,
by the usb-uclass. DT part looks like:

&usbh_ehci {
	...
	#address-cells = <1>;
	#size-cells = <0>;
	hub@1 {
		compatible = "usb424,2514";
		reg = <1>;
		vdd-supply = <&v3v3>;
	};
};

When the bus gets probed, the driver is automatically probed/removed from
the bus tree, as an example on stm32:
STM32MP> usb start
starting USB...
STM32MP> dm tree
 Class     Index  Probed  Driver                Name
-----------------------------------------------------------
 usb           0  [ + ]   ehci_generic          |   |-- usb@5800d000
 usb_hub       0  [ + ]   usb_onboard_hub       |   |   `-- hub@1
 usb_hub       1  [ + ]   usb_hub               |   |       `-- usb_hub

STM32MP> usb tree
USB device tree:
  1  Hub (480 Mb/s, 0mA)
  |  u-boot EHCI Host Controller
  |
  +-2  Hub (480 Mb/s, 2mA)

Signed-off-by: Fabrice Gasnier 
Reviewed-by: Patrice Chotard 
Reviewed-by: Patrick Delaunay

video: Drop common LCD implementation

2022-10-30T19:07:17+00:00

This code is no-longer used. Drop it.

Signed-off-by: Simon Glass

video: lcd: Drop console rotation

2022-10-30T19:07:16+00:00

This option is not used in U-Boot anymore. Drop it option and the
associated implementation.

Signed-off-by: Simon Glass

cyclic: Add basic support for cyclic function execution infrastruture

2022-09-13T20:01:43+00:00

Add the basic infrastructure to periodically execute code, e.g. all
100ms. Examples for such functions might be LED blinking etc. The
functions that are hooked into this cyclic list should be small timewise
as otherwise the execution of the other code that relies on a high
frequent polling (e.g. UART rx char ready check) might be delayed too
much. This patch also adds the Kconfig option
CONFIG_CYCLIC_MAX_CPU_TIME_US, which configures the max allowed time
for such a cyclic function. If it's execution time exceeds this time,
this cyclic function will get removed from the cyclic list.

How is this cyclic functionality executed?
The following patch integrates the main function responsible for
calling all registered cyclic functions cyclic_run() into the
common WATCHDOG_RESET macro. This guarantees that cyclic_run() is
executed very often, which is necessary for the cyclic functions to
get scheduled and executed at their configured periods.

This cyclic infrastructure will be used by a board specific function on
the NIC23 MIPS Octeon board, which needs to check periodically, if a
PCIe FLR has occurred.

Signed-off-by: Stefan Roese 
Reviewed-by: Simon Glass

common: usb: Update logic for usb.o, usb_hub.o and usb_storage.o

2022-06-28T21:11:48+00:00

Now that we have consistently named symbols to enable USB host or gadget
controller support in SPL or full U-Boot, we do not need to
unconditionally build USB files nor depend on non-SPL symbols to know
when to build these common files.

Signed-off-by: Tom Rini

avb: Don't build in SPL

2022-05-02T13:58:13+00:00

This feature is not used in SPL at present. Update the Makefile to avoid
it being built.

Signed-off-by: Simon Glass

event: Add basic support for events

2022-03-10T13:28:36+00:00

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

common: remove bedbug debugger support

2022-01-18T13:31:02+00:00

Commit 98f705c9cefd ("powerpc: remove 4xx support") removed (in 2017) the
last code that made use of bedbug debugger support. Since there aren't
any boards left that define either CONFIG_CMD_BEDBUG or a real
bedbug_init(), drop this feature from u-boot.

Signed-off-by: Ovidiu Panait 
Reviewed-by: Thomas Huth 
Reviewed-by: Simon Glass