u-boot.git/drivers/usb, branch v2020.10

fastboot: Fix fastboot reboot fail by changing functions order

2020-09-01T12:47:43+00:00

It was revealed that when the fastboot_tx_write_str function is called
without the previously initialized fastboot_func->in_req->complete field,
a copy of in_req will be sent to the I/O requests queue without
an initialized field.

Moving a piece of code with the initializing of the
fastboot_func->in_req->complete field above transmit_tx allows to solve
this problem.

Fixes: 65c96757fe9 "usb: fastboot: Convert USB f_fastboot to shared fastboot"
Signed-off-by: yurii.pidhornyi

f_sdp: Change bInterval of interrupt endpoint to 3

2020-09-01T12:47:43+00:00

Since the USB HID limits the maximum bandwidth(3072) for interrupt
endpoint transfers, when the bInterval set to 1, we can only support 3
boards to run sdp at the same time. In order to support more boards,
change the bInterval of interrupt endpoint to 3, which will not affect
the transmission speed.

Reviewed-by: Ye Li 
Signed-off-by: Sherry Sun 
Signed-off-by: Peng Fan

f_sdp: Add EP1_OUT as default data receive pipe in sdp

2020-09-01T12:47:43+00:00

EP0 has been used to transfer file data in sdp before, but the max
packetsize of ep0 is 64 bytes. So in order to improve the file transfer
speed, here add the EP1_OUT interrupt endpoint which max packetsize is
set to 1024 byte.

After testing, it turns out that using ep1out is twice as fast as using
ep0 while receiving data in sdp.

Signed-off-by: Sherry Sun 
Reviewed-by: Ye Li 
Signed-off-by: Peng Fan

f_sdp: Support searching and loading FIT or container image

2020-09-01T12:47:43+00:00

Add support to f_sdp to search and load iMX8 container image or iMX8M
FIT image by new UUU command SDPV.

When using the SDPV, the uuu will continue to send out data after first
level boot loader used by ROM. This means uuu won't skip to the offset
of the second boot loader, and the padding data before second boot loader
will be sent out. So we have to search the FIT header or container header
in the buffer that SDP received.

Also change to more common method to exit f_sdp handler not depending on
SPL_FIT_FOUND flag because container loader won't set this.

Signed-off-by: Peng Fan

f_sdp: Fix wrong usb request size

2020-09-01T12:47:43+00:00

Because the buffer length of sdp usb request is 65, we have to allocate
65 bytes not 64 bytes. Otherwise there is potential buffer overflow.

Signed-off-by: Ye Li 
Signed-off-by: Peng Fan 
Reviewed-by: Lukasz Majewski

f_sdp: Add high speed endpoint descriptor

2020-09-01T12:47:43+00:00

Add HS endpoint descriptor for SDP. So that we can use high speed endpoint,
and the SDP device can send packet with 512 byte size.

Signed-off-by: Ye Li 
Signed-off-by: Peng Fan 
Reviewed-by: Lukasz Majewski

usb: max3420: add the gadget driver

2020-09-01T12:47:43+00:00

MAX3420 implements FullSpeed USB Device over SPI.
Another version MAX3421, also implements USB Host mode.
This driver should be good for the device mode of max3421 as well.

Signed-off-by: Jassi Brar

fastboot: Add support for 'reboot fastboot' command

2020-09-01T12:47:43+00:00

Android 10 adds support for dynamic partitions and in order to support
this userspace fastboot must be used[1]. New tool fastbootd is
included into recovery.

Userspace fastboot works from recovery and is launched if:
1) - Dynamic partitioning is enabled
2) - Boot control block has 'boot-fastboot' value into command field
The bootloader is expected to load and boot into the recovery image
upon seeing boot-fastboot in the BCB command. Recovery then parses the
BCB message and switches to fastbootd mode[2].

Please note that boot script is expected to handle 'boot-fastboot'
command in BCB and load into recovery mode.

Bootloader must support 'reboot fastboot' command which should reboot
device into userspace fastboot to accomodate those changes[3].

Another command that bootloader must support[3] is 'reboot recovery'. This
command should simply reboot device into recovery mode.

[1] - https://source.android.com/devices/bootloader/fastbootd
[2] - https://source.android.com/devices/bootloader/fastbootd#unified_fastboot_and_recovery
[3] - https://source.android.com/devices/bootloader/fastbootd#modifications_to_the_bootloader

Signed-off-by: Roman Kovalivskyi 
Signed-off-by: Roman Stratiienko 
Change-Id: I9d2bdc9a6f6f31ea98572fe155e1cc8341e9af76

usb: ci_udc: Add function to remove usb device

2020-09-01T12:47:43+00:00

When unregister gadget driver in ci_udc, the usb device is not
removed or stop. This causes next "usb start" fails to work.

Add a new interface "usb_remove_ehci_gadget" in usb-uclass to
remove the usb device for DM driver. Using "usb_lowlevel_stop" for
non-DM driver.

Signed-off-by: Ye Li 
Signed-off-by: Peng Fan

usb: gadget: Fix controller index in UMS

2020-09-01T12:47:43+00:00

The usb mass storage (f_mass_storage.c) uses fixed usb index 0,
this causes problem while CDNS3 USB controller index is 1.
Modify the API of fsg to pass the controller index.

Reviewed-by: Jun Li 
Signed-off-by: Ye Li 
Signed-off-by: Peng Fan