On Tue, Sep 17, 2024 at 9:21 PM Peng Fan <peng....@nxp.com> wrote: > The linux changes still in downstream as below: > /* > * For this spi-nor on M.2 card, need first enable the VPCIe_3.3v. > * Note, VPCIe_3.3v need about 1.74ms to change from 0v to 3.3v. > * U-boot already enable VPCIe_3.3v, so in linux, can ignore this > * 1.7ms, if u-boot do not eanble VPCIe_3.3v first, then need to > * take care of the 1.74ms delay, better to build the flexspi driver > * as module in driver to avoid spi-nor probe fail. > */ > pinctrl-assert-gpios = <&pcal6524 13 GPIO_ACTIVE_HIGH>, /* enable > VPCIe_3v3 */
This 'pinctrl-assert-gpios' is a NXP hack. It only exists in the NXP kernel.
