Hi, DMA is disabled. CLK and MOSI are looking fine. Very interessing, CSs are not asserted when loading driver (on old kernel it does), but I can measure "high" after HW initialisation. Since I did not change the IOs between the old and new device tree assuming the "high" on CS also showing correct PAD / GPIO configuration there seems a problem asserting the CS. cat /sys/kernel/debug/gpio looks good (gpio-3 and gpio-129) gpiochip0: GPIOs 0-31, parent: platform/30200000.gpio, 30200000.gpio: gpio-3 ( |spi1 CS1 ) out hi ACTIVE LOW gpio-5 ( |regulator-vbus ) out lo gpiochip1: GPIOs 64-95, parent: platform/30220000.gpio, 30220000.gpio: gpio-67 ( |spi3 CS0 ) out hi ACTIVE LOW gpiochip2: GPIOs 96-127, parent: platform/30230000.gpio, 30230000.gpio: gpiochip3: GPIOs 128-159, parent: platform/30240000.gpio, 30240000.gpio: gpio-128 ( |cd ) in hi IRQ ACTIVE LOW gpio-129 ( |spi1 CS0 ) out hi ACTIVE LOW BR Niels Marc Kleine-Budde schrieb am 31.01.2022 09:58 (GMT +00:00): > On 31.01.2022 10:35:54, petter@xxxxxxxxxx wrote: >> I have disabled DMAs in imx7s.dtsi for all ecspis and recompile the >> device tree. Still get the same failure. > > You can check if that really works by looking at the used DT: > > $ dtc -I fs /proc/device-tree > > Next step would be to get a scope and attach it to the MISO/MOSI/CLk/CS > pins. > > Marc > > -- > Pengutronix e.K. | Marc Kleine-Budde | > Embedded Linux | https://www.pengutronix.de | > Vertretung West/Dortmund | Phone: +49-231-2826-924 | > Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | >
