On Mon, Jan 04, 2021 at 03:33:43PM +0100, Neil Armstrong wrote: > This adds support for specifying FDT overlays in an extlinux/pxelinux > configuration file. > > Without this, there is no simple way to apply overlays when the kernel > and fdt is loaded by the pxe command. > > This change adds the 'fdtoverlays' keyword for a label, supporting multiple > overlay files to be applied on top of the fdt specified in the 'fdt' or > 'devicetree' keyword. > > Example: > label linux > kernel /Image > devicetree /soc-board.dtb > fdtoverlays /soc-board-function.dtbo > append console=ttyS0,115200 root=/dev/mmcblk0p2 rootwait > > This code makes usage of a new variable called fdtoverlay_addr_r used to load > the overlay files without overwritting anything important. > > Cc: Tom Rini <tr...@konsulko.com> > Cc: Andre Heider <a.hei...@gmail.com> > Cc: Jernej Škrabec <jernej.skra...@siol.net> > Cc: Jonas Karlman <jo...@kwiboo.se> > Signed-off-by: Neil Armstrong <narmstr...@baylibre.com> > --- > Hi Tom, > > This is repost of my last year's attempt. > It fills a hole to allow loading FDT overlays using PXE/Extlinux without > using FIT. > > V2 adds documentation.
Thanks for following up. I assume this follows what the spec says for this file? -- Tom
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