On Sun, 12 Feb 2023 18:52:07 +0100 Nicolas Frattaroli <frattaroli.nico...@gmail.com> wrote: > Hello, > > I realise this is quite an old bug, but it would still be of interest > to me to get this enabled. The -@ option will increase the size of the > compiled device tree blobs somewhat, but on the flipside, u-boot- menu's > device tree overlay functionality will actually be useful.
The increase is around 30% in average. For the linux-image-6.1.0-10- arm64, we have around 30MB of dtb files (uncompressed). By that, the package would grow by 10MB (uncompressed) or even less when compressed. > > In my case, I'm interested in this for PINE64's Quartz64 lineup of ARM > devices. Since these are development boards that expose non- enumerating > protocols like I2C and SPI, the use of device tree overlays is pretty > much required to add additional modules to the board. On many (if not most) arm based boards, these device tree overlays are very useful. There are also many kernel patches about enabling the symbol support on a per-device basis. However, kernel devs seem to have some mixed feelings about that. A proposed solution is to enable this at distro level [1]. @Ben: Would it be an accepted solution to enable the DTC_FLAGS += -@ for all armhf, armmp, arm64 and riscv devices? Felix [1] https://www.spinics.net/lists/devicetree/msg622660.html > > Kind regards, > Nicolas Frattaroli > > > >
