Re: [U-Boot] dtoverlay for mx6 ARM
On Fri, 12 Jun 2015 00:14:17 +0200, Johann Obermayr wrote: Am 11.06.2015 um 22:13 schrieb Jakub Kiciński: On Thu, 11 Jun 2015 21:49:57 +0200, Johann Obermayr wrote: Hello, Hi there, for raspberyy pi there are some features available. dtoverlay, dtparam, ... we have a Freescale mx6 CPU. How we can add/enable this features ? I'm new to U-Boot but on RPi the features are provided by their proprietary firmware/bootloader. AFAIK U-Boot doesn't support DT overlays. Thank you for this information. Is there a way to change a loaded devicetree configuration ? Because we have many boards with small differents. but less memory on disk. at this time one DTB file need ~150kb. we have 1MB free, but we have 20 different boards and every month 1 or 2 new boards. Ugh, nothing comes to my mind, but as I said, I'm a newbie. Maybe someone else can chime in. ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
Re: [U-Boot] dtoverlay for mx6 ARM
Hello, On 12 June 2015 at 00:14, Johann Obermayr johann.oberm...@sigmatek.at wrote: Am 11.06.2015 um 22:13 schrieb Jakub Kiciński: On Thu, 11 Jun 2015 21:49:57 +0200, Johann Obermayr wrote: Hello, Hi there, for raspberyy pi there are some features available. dtoverlay, dtparam, ... we have a Freescale mx6 CPU. How we can add/enable this features ? I'm new to U-Boot but on RPi the features are provided by their proprietary firmware/bootloader. AFAIK U-Boot doesn't support DT overlays. Kuba Thank you for this information. Is there a way to change a loaded devicetree configuration ? Because we have many boards with small differents. but less memory on disk. at this time one DTB file need ~150kb. we have 1MB free, but we have 20 different boards and every month 1 or 2 new boards. This depends on the changes you want. If the change is in a part of the DT which you do not need to boot you can just leave that part out and build overlay bits which you load at runtime in your init scripts (needs kernel and dtc patches). If the changes are required to boot there is some support in u-boot to modify DTs but I am not sure how much functionality is desirable and already implemented. Currently simplefb depends on u-boot modifying pre-made DT nodes. Thanks Michal ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
[U-Boot] dtoverlay for mx6 ARM
Hello, for raspberyy pi there are some features available. dtoverlay, dtparam, ... we have a Freescale mx6 CPU. How we can add/enable this features ? regards Johann ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
Re: [U-Boot] dtoverlay for mx6 ARM
On Thu, 11 Jun 2015 21:49:57 +0200, Johann Obermayr wrote: Hello, Hi there, for raspberyy pi there are some features available. dtoverlay, dtparam, ... we have a Freescale mx6 CPU. How we can add/enable this features ? I'm new to U-Boot but on RPi the features are provided by their proprietary firmware/bootloader. AFAIK U-Boot doesn't support DT overlays. Kuba ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
Re: [U-Boot] dtoverlay for mx6 ARM
Am 11.06.2015 um 22:13 schrieb Jakub Kiciński: On Thu, 11 Jun 2015 21:49:57 +0200, Johann Obermayr wrote: Hello, Hi there, for raspberyy pi there are some features available. dtoverlay, dtparam, ... we have a Freescale mx6 CPU. How we can add/enable this features ? I'm new to U-Boot but on RPi the features are provided by their proprietary firmware/bootloader. AFAIK U-Boot doesn't support DT overlays. Kuba Thank you for this information. Is there a way to change a loaded devicetree configuration ? Because we have many boards with small differents. but less memory on disk. at this time one DTB file need ~150kb. we have 1MB free, but we have 20 different boards and every month 1 or 2 new boards. regards Johann ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
