Hi Thomas, On Tue, 29 May 2018 11:41:42 -0400 Thomas Hebb wrote:
> The Synopsys DesignWare 8250 UART in Berlin SoCs is now supported by > 8250_early, so we can use earlycon for early console output instead > of earlyprintk, which requires an SoC-specific kernel. IIRC, earlyprintk still works during the decompress progress while the earlycon doesn't. > > Signed-off-by: Thomas Hebb <[email protected]> > --- > arch/arm/boot/dts/berlin2-sony-nsz-gs7.dts | 2 +- > arch/arm/boot/dts/berlin2cd-google-chromecast.dts | 2 +- > arch/arm/boot/dts/berlin2q-marvell-dmp.dts | 2 +- > 3 files changed, 3 insertions(+), 3 deletions(-) > > diff --git a/arch/arm/boot/dts/berlin2-sony-nsz-gs7.dts > b/arch/arm/boot/dts/berlin2-sony-nsz-gs7.dts > index 1c475796d17f..f98798bb684f 100644 > --- a/arch/arm/boot/dts/berlin2-sony-nsz-gs7.dts > +++ b/arch/arm/boot/dts/berlin2-sony-nsz-gs7.dts > @@ -45,7 +45,7 @@ > compatible = "sony,nsz-gs7", "marvell,berlin2", "marvell,berlin"; > > chosen { > - bootargs = "earlyprintk"; > + bootargs = "earlycon"; Is there something missing here? example, uart8250,mmio,<addr>? > stdout-path = "serial0:115200n8"; > }; > > diff --git a/arch/arm/boot/dts/berlin2cd-google-chromecast.dts > b/arch/arm/boot/dts/berlin2cd-google-chromecast.dts > index ca24def0ce13..20f31cdeaf38 100644 > --- a/arch/arm/boot/dts/berlin2cd-google-chromecast.dts > +++ b/arch/arm/boot/dts/berlin2cd-google-chromecast.dts > @@ -46,7 +46,7 @@ > compatible = "google,chromecast", "marvell,berlin2cd", "marvell,berlin"; > > chosen { > - bootargs = "earlyprintk"; > + bootargs = "earlycon"; > stdout-path = "serial0:115200n8"; > }; > > diff --git a/arch/arm/boot/dts/berlin2q-marvell-dmp.dts > b/arch/arm/boot/dts/berlin2q-marvell-dmp.dts > index 57aa5f8a7c77..9834e84a0797 100644 > --- a/arch/arm/boot/dts/berlin2q-marvell-dmp.dts > +++ b/arch/arm/boot/dts/berlin2q-marvell-dmp.dts > @@ -49,7 +49,7 @@ > }; > > chosen { > - bootargs = "earlyprintk"; > + bootargs = "earlycon"; > stdout-path = "serial0:115200n8"; > }; >
