[PATCH 00/13] TI: K3 DTS: fix USB Clocking for Compliance

From: Siddharth Vadapalli

Date: Tue May 05 2026 - 07:15:34 EST


Hello,

This series enables Internal Spread Spectrum Clocking (SSC) for USB
SuperSpeed configuration. This is mandated by the USB Specification
section 6.5.3 Normative Spread Spectrum Clocking (SSC).

Series has been posted as individual patches for respective boards since
the Fixes tag is different for each board and needs to be backported via
stable.

Series is based on commit
a293ec25d59d Merge tag 'linux_kselftest-fixes-7.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
of Mainline Linux.

Series has been tested on the following boards:
1. AM642-SK
https://gist.github.com/Siddharth-Vadapalli-at-TI/c9f644dda67a122d3299569b2a0214ab
2. AM68-SK-Baseboard
https://gist.github.com/Siddharth-Vadapalli-at-TI/4c0c0efb9a6fa59ef08a497acf5b2289
3. AM69-SK
https://gist.github.com/Siddharth-Vadapalli-at-TI/5b3c3ab5862e470de8ec74a49c442f3f
4. J721E-Common-Processor-Board
https://gist.github.com/Siddharth-Vadapalli-at-TI/c0abaabbf4fa4c9101d13afc7eba62c5
5. J721E-SK
https://gist.github.com/Siddharth-Vadapalli-at-TI/c57abc3305362b48e92b769c3e5ed8c8
6. J722S-EVM
https://gist.github.com/Siddharth-Vadapalli-at-TI/1f6557357214438767846e8b39b84ea7
7. J742S2-EVM
https://gist.github.com/Siddharth-Vadapalli-at-TI/efd1978d27e628afcc6eaf09cd776ff5
8. J784S4-EVM
https://gist.github.com/Siddharth-Vadapalli-at-TI/38e250068504f222cc0c9cc03b21b4ad

Regards,
Siddharth.

Luis Parga (2):
arm64: dts: ti: k3-am642-sk: fix USB clocking for compliance
arm64: dts: ti: k3-j722s-evm: fix USB clocking for compliance

Siddharth Vadapalli (11):
arm64: dts: ti: k3-am642-hummingboard-t: fix USB clocking for
compliance
arm64: dts: ti: k3-am642-phyboard-electra-rdk: fix USB clocking for
compliance
arm64: dts: ti: k3-am642-tqma64xxl: fix USB clocking for compliance
arm64: dts: ti: k3-am68-phyboard-izar: fix USB clocking for compliance
arm64: dts: ti: k3-am68-sk-baseboard: fix USB clocking for compliance
arm64: dts: ti: k3-am69-aquila: fix USB clocking for compliance
arm64: dts: ti: k3-am69-sk: fix USB clocking for compliance
arm64: dts: ti: k3-j721e-beagleboneai64: fix USB clocking for
compliance
arm64: dts: ti: k3-j721e-common-proc-board: fix USB clocking for
compliance
arm64: dts: ti: k3-j721e-sk: fix USB clocking for compliance
arm64: dts: ti: k3-j784s4-j742s2-evm-common: fix USB clocking for
compliance

.../boot/dts/ti/k3-am642-hummingboard-t-usb3.dts | 9 +++++++++
.../boot/dts/ti/k3-am642-phyboard-electra-rdk.dts | 9 +++++++++
arch/arm64/boot/dts/ti/k3-am642-sk.dts | 6 ++++++
.../boot/dts/ti/k3-am642-tqma64xxl-mbax4xxl.dts | 9 +++++++++
arch/arm64/boot/dts/ti/k3-am68-phyboard-izar.dts | 9 +++++++++
arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts | 9 +++++++++
arch/arm64/boot/dts/ti/k3-am69-aquila.dtsi | 6 ++++++
arch/arm64/boot/dts/ti/k3-am69-sk.dts | 6 ++++++
.../arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts | 15 +++++++++++++++
.../boot/dts/ti/k3-j721e-common-proc-board.dts | 6 ++++++
arch/arm64/boot/dts/ti/k3-j721e-sk.dts | 15 +++++++++++++++
arch/arm64/boot/dts/ti/k3-j722s-evm.dts | 6 ++++++
.../boot/dts/ti/k3-j784s4-j742s2-evm-common.dtsi | 6 ++++++
13 files changed, 111 insertions(+)

--
2.51.1