u-boot.git/drivers/usb/host/ehci.h, branch main

usb: ehci: Remove unused ehci_{setup,shutdown}_phy() helpers

2022-10-10T16:08:18Z

Remove unused ehci_{setup,shutdown}_phy() helpers now replaced by generic_{setup,shutdown}_phy(). Signed-off-by: Patrice Chotard Cc: Marek Vasut Cc: Simon Glass

doc: replace @return by Return:

2022-01-19T17:11:34Z

Sphinx expects Return: and not @return to indicate a return value. find . -name '*.c' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; find . -name '*.h' -exec \ sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \; Signed-off-by: Heinrich Schuchardt

usb: ehci-hcd: Add IAA handshake for removing async QH

2021-04-22T19:09:57Z

According to EHCI spec, software needs to do handshake with HC for safely removing QH from async list. This handshake is implemented by setting IAAD (Interrupt on Async Advance Doorbell) bit in USB_USBCMD register and poll the IAA (Interrupt on Async Advance bit) in the USB_USBSTS to ensure the HC has released all on-chip state that may potentially reference one of the data structures just removed. Current codes only check active status of the last QTD, but this can't ensure the QH is released from HC. We can meet unrecoverable "EHCI timed out on TD" errors when running UEFI SCT tests on USB disk. The USB_ASYNCLISTADDR register is changed to a invalid address when the issue happens. It is fixed after adding the IAA handshake. Steps to reproduce the issue: 1. Build the UEFI SCT from https://github.com/tianocore/edk2-test 2. Build the EDK2 UEFI Shell from https://github.com/tianocore/edk2 3. Copy SCT files and Shell.efi to USB disk FAT partition 4. Load the Shell.efi from USB FAT, and run bootefi to execute it 5. After booting into Shell, enter the SCT directory and run "sct -a" to execute all tests. 6. Tests run about 1 hour and stop with many EHCI timeout errors like EHCI timed out on TD - token=0x801f8c80 Signed-off-by: Ye Li

common: Drop linux/bitops.h from common header

2020-05-19T01:19:23Z

Move this uncommon header out of the common header. Signed-off-by: Simon Glass

usb: Keep async schedule running only across mass storage xfers

2020-04-09T19:26:59Z

Rather than keeping the asynchronous schedule running always, keep it running only across USB mass storage transfers for now, as it seems that keeping it running all the time interferes with certain control transfers during device enumeration. Note that running the async schedule all the time should not be an issue, especially on EHCI HCD, as that one implements most of the transfers using async schedule. Note that we have usb_disable_asynch(), which however is utterly broken. The usb_disable_asynch() blocks the USB core from doing async transfers by setting a global flag. The async schedule should however be disabled per USB controller. Moreover, setting a global flag does not prevent the controller from using the async schedule, which e.g. the EHCI HCD does. This patch implements additional callback to the controller, which permits it to lock the async schedule and keep it running across multiple transfers. Once the schedule is unlocked, it must also be disabled. This thus prevents the async schedule from running outside of the USB mass storage transfers. Signed-off-by: Marek Vasut Cc: Lukasz Majewski Cc: Tom Rini Tested-by: Tom Rini [omap3_beagle, previously failing]

fsl/usb: Workaround for USB erratum-A005275

2018-10-29T20:13:05Z

Workaround makes FS as default mode on all affected socs. Add support to check erratum-A005275 validity for an soc. This info is required to determine whether a given soc is affected by this erratum. Add quirk for this erratum "has_fsl_erratum_a005275" . This quirk is used to enable workaround for the errata Force FS mode as default by: - making EPS as FS - setting PFSC bit to disable HS chirping This workaround can be disabled by mentioning "no_erratum_a005275" in hwconfig string Signed-off-by: Chris Packham Reviewed-by: York Sun

usb: ehci: Make the PHY handling generic

2018-08-28T09:00:18Z

Pull out the EHCI PHY functions into the ehci-hcd.c to let other EHCI drivers use them. Signed-off-by: Marek Vasut

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07T13:34:12Z

When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini

usb: ehci: Fix accessors for big-endian platforms and descriptors

2017-11-26T01:22:36Z

Commit 9000eddbae0d ("drivers/usb/ehci: Use platform-specific accessors") broke USB 2.0 on big-endian platforms because for them writel/readl() does automatic conversion of BE data to LE. Proper implementation requires to use "raw" variant of these accessors which read/write data without messing with endianess. While at it replace cpu_to_be32() to be32_to_cpu() in readl() to keep sane semantics. Signed-off-by: Alexey Brodkin Cc: Marek Vasut Reported-by: Vladimir Boroda

usb: ehci: Get rid of CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS

2017-07-28T21:34:23Z

EHC reports supported maximum number of ports in the HCSPARAMS register, so it's unnecessary to use a hardcoded config option CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS. Signed-off-by: Bin Meng Reviewed-by: Simon Glass Reviewed-by: Stefan Roese Tested-by: Stefan Roese