Thanks. I had found that swapping the device driver registration made the QSPI probe first. Changing DSPI to be registered by device_initall and QSPI by coredevice_initcall does what I am expected. I will look at the method you offered. > -----Original Message----- > From: Sascha Hauer <sha@xxxxxxxxxxxxxx> > Sent: Thursday, November 16, 2023 7:56 AM > To: Renaud Barbier <Renaud.Barbier@xxxxxxxxxx> > Cc: Barebox List <barebox@xxxxxxxxxxxxxxxxxxx> > Subject: Re: Device tree probe order > > ***NOTICE*** This came from an external source. Use caution when replying, > clicking links, or opening attachments. > > Hi Renauld, > > On Wed, Nov 15, 2023 at 04:47:03PM +0000, Renaud Barbier wrote: > > We have a board based on the LS1026A with a boot SPI NOR on the QSPI > > controller and FRAM on the DSPI controller. Currently, the DSPI is > > being probed first and got the device node /dev/m25p0. The boot SPI > > get /dev/m25p1. > > > > I would like the QSPI NOR to be assigned to /dev/m25p0 and the FRAM > > to /dev/m25p1. > > > > Is it possible to change the probing order or the device node > > assignment? > > You can create aliases in the device tree for both flashes, see > drivers/mtd/devices/m25p80.c:258: > > if (dev->of_node) > flash_name = of_alias_get(dev->of_node); > > Sascha > > -- > Pengutronix e.K. | | > Steuerwalder Str. 21 | > https://urldefense.com/v3/__http://www.pengutronix.de/__;!!HKOSU0g!BN8zz > nbk0b3uelLqUvSN2rw8QCvPlzwneze_sHvn80jabgpUMpW6mKUMPR5ix- > ZYthtB_DT_P_RRp4-IpE3s$ | > 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | > Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
