Hi Mike, On Sat, Oct 19, 2019 at 07:29:41AM +0100, Michael Howard wrote: >Posted this to wrong list initially, sorry all! > >I've just re-installed debian (stretch) on the Gigabyte MP30-AR0 board using >the installer netinst iso (any later install images fail) and the sdcard slot >is not showing up. The kernel is vmlinuz-4.9.0-11-arm64 and I have also rebuilt >it ensuring all the MMC options I should need are selected. > >I'm now suspecting a devicetree issue. Checking the output from dtc, using 'dtc >-I fs -O dts /sys/firmware/devicetree/base' there is no mention of mmc. >However, an 'mmc' entry exists in the source code file 'apm-storm.dtsi', which >is 'included' by 'apm-mustang.dts', which I'm assuming is the dts file used by >the kernel build system, I used bindeb-pkg to build the debs. > >Previously, I've manually built the image, modules and dtb (last occasion using >mainline 4.9.2) and the card slot was not a problem. > >Anybody any ideas as to what's happening? Can I ensure that 'bindeb-pkg' uses a >specific dts? If so, how?
First question: how are you booting the system? U-Boot or UEFI? IME the X-Gene platform should normally use a DTB provided by firmware. There are bits of the platform that are configured by firmware at boot, so you can't reliably use a static DTB with the kernel image. -- Steve McIntyre, Cambridge, UK. [email protected] "The problem with defending the purity of the English language is that English is about as pure as a cribhouse whore. We don't just borrow words; on occasion, English has pursued other languages down alleyways to beat them unconscious and rifle their pockets for new vocabulary." -- James D. Nicoll
