From mboxrd@z Thu Jan 1 00:00:00 1970 From: maxime.ripard@free-electrons.com (Maxime Ripard) Date: Mon, 25 Jul 2016 08:40:33 +0200 Subject: [PATCH 1/4] ARM: dts: sun8i: Extend Orange Pi PC dt to also handle the PC Plus In-Reply-To: References: <1468095718-18515-1-git-send-email-hdegoede@redhat.com> <20160713084505.GE4761@lukather> Message-ID: <20160725064033.GA7419@lukather> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi, On Wed, Jul 13, 2016 at 12:01:41PM +0200, Hans de Goede wrote: > Hi, > > On 13-07-16 10:45, Maxime Ripard wrote: > >On Sat, Jul 09, 2016 at 10:21:55PM +0200, Hans de Goede wrote: > >>There is a new Orange Pi PC Plus available now, rather then adding > >>yet another dts file for this variant, extend the existing > >>Orange Pi PC to support the sdio wifi and emmc found on this variant. > >> > >>Downside of this approach is the following messages in dmesg when run > >>on the non Plus Orange Pi PC: > >> > >>sunxi-mmc 1c10000.mmc: fatal err update clk timeout > >>sunxi-mmc 1c11000.mmc: smc 2 err, cmd 8, RTO !! > >>sunxi-mmc 1c11000.mmc: smc 2 err, cmd 55, RTO !! > >>sunxi-mmc 1c11000.mmc: smc 2 err, cmd 55, RTO !! > >>sunxi-mmc 1c11000.mmc: smc 2 err, cmd 55, RTO !! > >>sunxi-mmc 1c11000.mmc: smc 2 err, cmd 55, RTO !! > >>sunxi-mmc 1c11000.mmc: smc 2 err, cmd 1, RTO !! > >> > >>Note these are completely harmless and there is no adverse effect > >>to the functioning of the non Plus Orange Pi PC. > >> > >>Signed-off-by: Hans de Goede > >>--- > >> arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts | 40 +++++++++++++++++++++++++++++- > >> 1 file changed, 39 insertions(+), 1 deletion(-) > >> > >>diff --git a/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts b/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts > >>index b8340f7..f9bf260 100644 > >>--- a/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts > >>+++ b/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts > >>@@ -49,11 +49,13 @@ > >> #include > >> > >> / { > >>- model = "Xunlong Orange Pi PC"; > >>+ model = "Xunlong Orange Pi PC / PC Plus"; > >> compatible = "xunlong,orangepi-pc", "allwinner,sun8i-h3"; > >> > >> aliases { > >> serial0 = &uart0; > >>+ /* ethernet0 is the H3 emac, defined in sun8i-h3.dtsi */ > >>+ ethernet1 = &rtl8189ftv; > >> }; > >> > >> chosen { > >>@@ -118,6 +120,42 @@ > >> status = "okay"; > >> }; > >> > >>+/* Note only present on orangepi pc *plus* */ > >>+&mmc1 { > >>+ pinctrl-names = "default"; > >>+ pinctrl-0 = <&mmc1_pins_a>; > >>+ vmmc-supply = <®_vcc3v3>; > >>+ bus-width = <4>; > >>+ non-removable; > >>+ status = "okay"; > >>+ > >>+ /* > >>+ * Explicitly define the sdio device, so that we can add an ethernet > >>+ * alias for it (which e.g. makes u-boot set a mac-address). > >>+ */ > >>+ rtl8189ftv: sdio_wifi at 1 { > >>+ reg = <1>; > >>+ }; > >>+}; > > > >Nothing prevents you from including the orange pi pc dts, from the > >orange pi plus dts. > > > >It prevents the duplication you were trying to avoid, and it doesn't > >create all those spurious errors and devices. > > That would solve the copy paste problem on the kernel side, but that > would still mean adding a new u-boot defconfig for this, which means that > all the distro's which ship with prebuild u-boot binaries need to build > for yet another board, something which I would like to avoid. Still, registering devices that are not present on the board is not an option. Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 819 bytes Desc: not available URL: