On 16.06.2023 18:29, cristian.birsan@xxxxxxxxxxxxx wrote: > EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe > > From: Cristian Birsan <cristian.birsan@xxxxxxxxxxxxx> > > Add the '-@' DTC option for AT91 boards that have device-tree overlays. > This option populates the '__symbols__' node that contains all the > necessary symbols for supporting device-tree overlays (from bootloader) > on these devices. > > This change increases the size of the resulting DTB with ~30%-40%. Below > are the measurements performed v6.4-rc6: > > at91-sam9x60_curiosity.dtb 28499 -> 36641 bytes > at91-sam9x60ek.dtb 30867 -> 39609 bytes > at91-sama5d27_som1_ek.dtb 26086 -> 34166 bytes > at91-sama5d27_wlsom1_ek.dtb 26045 -> 33184 bytes > at91-sama5d2_icp.dtb 27521 -> 36155 bytes > at91-sama5d2_ptc_ek.dtb 23237 -> 29612 bytes > at91-sama5d2_xplained.dtb 27262 -> 35326 bytes > at91-sama5d3_eds.dtb 27924 -> 39939 bytes > at91-sama5d3_xplained.dtb 28400 -> 40650 bytes > at91-sama5d4_xplained.dtb 26456 -> 36107 bytes > at91-sama7g5ek.dtb 29212 -> 37289 bytes > > Signed-off-by: Cristian Birsan <cristian.birsan@xxxxxxxxxxxxx> Applied to at91-dt, thanks! > --- > arch/arm/boot/dts/Makefile | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) > > diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile > index 59829fc90315..38b82af2bf69 100644 > --- a/arch/arm/boot/dts/Makefile > +++ b/arch/arm/boot/dts/Makefile > @@ -50,9 +50,21 @@ dtb-$(CONFIG_SOC_AT91SAM9) += \ > at91sam9g35ek.dtb \ > at91sam9x25ek.dtb \ > at91sam9x35ek.dtb > +# Enables support for device-tree overlays > +DTC_FLAGS_at91-sam9x60_curiosity := -@ > +DTC_FLAGS_at91-sam9x60ek := -@ > dtb-$(CONFIG_SOC_SAM9X60) += \ > at91-sam9x60_curiosity.dtb \ > at91-sam9x60ek.dtb > +# Enables support for device-tree overlays > +DTC_FLAGS_at91-sama5d27_som1_ek := -@ > +DTC_FLAGS_at91-sama5d27_wlsom1_ek := -@ > +DTC_FLAGS_at91-sama5d2_icp := -@ > +DTC_FLAGS_at91-sama5d2_ptc_ek := -@ > +DTC_FLAGS_at91-sama5d2_xplained := -@ > +DTC_FLAGS_at91-sama5d3_eds := -@ > +DTC_FLAGS_at91-sama5d3_xplained := -@ > +DTC_FLAGS_at91-sama5d4_xplained := -@ > dtb-$(CONFIG_SOC_SAM_V7) += \ > at91-kizbox2-2.dtb \ > at91-kizbox3-hs.dtb \ > @@ -79,6 +91,8 @@ dtb-$(CONFIG_SOC_SAM_V7) += \ > at91-sama5d4_xplained.dtb \ > at91-sama5d4ek.dtb \ > at91-vinco.dtb > +# Enables support for device-tree overlays > +DTC_FLAGS_at91-sama7g5ek := -@ > dtb-$(CONFIG_SOC_SAMA7G5) += \ > at91-sama7g5ek.dtb > dtb-$(CONFIG_SOC_SP7021) += \ > -- > 2.34.1 > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
