Source-Changes-D archive

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]

Re: CVS commit: src/sys/dev/fdt




On Jun 20, 2018, at 4:25 PM, Jason Thorpe <thorpej%me.com@localhost> wrote:

On Jun 20, 2018, at 9:56 AM, Jared McNeill <jmcneill%invisible.ca@localhost> wrote:

On Wed, 20 Jun 2018, Jason Thorpe wrote:

ofctl(8) is pretty useless for this purpose because it doesn't show you which driver instance has attached to a given device tree node.  As for passing generic boot args, it's not obvious how one does that on the RPI (and I don't even see the hook that processes the generic boot args bcm283x_platform).

https://www.raspberrypi.org/documentation/configuration/cmdline-txt.md

Sure, but where is the code for the brcm2835 platform that *processes* it?  I see stuff for parsing console / fb options, but not for standard boot flags.

Firmware puts the string in /chosen/bootargs and we pick it up here: https://nxr.netbsd.org/xref/src/sys/arch/evbarm/fdt/fdt_machdep.c#378

The standard args are then processed here: https://nxr.netbsd.org/xref/src/sys/arch/evbarm/fdt/fdt_machdep.c#491




Home | Main Index | Thread Index | Old Index