On Wed 2016-12-14 22:12:43, Pali Rohár wrote:
> Commit 008a2ebcd677 ("ARM: dts: omap3: Remove skeleton.dtsi usage") broke
> support for setting cmdline on Nokia N900 via CONFIG_CMDLINE.
>
> It is because arm code booted in DT mode parse cmdline only via function
> early_init_dt_scan_chosen() and that function does not fill variable
> boot_command_line when DTB does not contain /chosen entry. It is called
> from function early_init_dt_scan_nodes() in setup_machine_fdt().
>
> This patch fixes it by explicitly filling boot_command_line in function
> setup_machine_fdt() after calling early_init_dt_scan_nodes() in case
> boot_command_line still remains empty.
>
> Signed-off-by: Pali Rohár <[email protected]>Acked-by: Pavel Machek <[email protected]> > --- a/arch/arm/kernel/devtree.c > +++ b/arch/arm/kernel/devtree.c > @@ -260,6 +260,11 @@ const struct machine_desc * __init > setup_machine_fdt(unsigned int dt_phys) > > early_init_dt_scan_nodes(); > > +#ifdef CONFIG_CMDLINE > + if (!boot_command_line[0]) > + strlcpy(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE); > +#endif > + > /* Change machine number to match the mdesc we're using */ > __machine_arch_type = mdesc->nr; > -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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