On Mon, Nov 13, 2017 at 5:23 AM, James Hogan <james.hogan@xxxxxxxx> wrote: > On Sat, Nov 11, 2017 at 09:19:48AM -0800, Daniel Gimpelevich wrote: >> There are two uses for this: >> >> 1) It may be useful to split a device-specific kernel command line between >> a .dts file and a .dtsi file, with "bootargs" in one and "bootargs-append" >> in the other, such as for variations of a reference board. What Geert said. >> 2) There are kernel configuration options for prepending "bootargs" to the >> kernel command line that the bootloader has passed, but not for appending. >> A new option for this would be a less future-proof solution, since things >> like this should be in the dtb. This is a kernel problem. What's the use case where you want the DT to override the kernel? One way you could handle this is make bootargs be multiple strings. Well 2 specifically, the first string is prepended and the 2nd is appended. That complicates how you'd implement /append-property/ though as you'd probably want to support both string cat and 2 strings. Though the latter works more generically without knowing the data type. Rob -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
