From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maxime Ripard Subject: Re: Re: [PATCH] ARM: dts: sun8i: r40/v40: rewrite BPi M2 Berry DTS to rebase on M2 Ultra Date: Mon, 20 Aug 2018 17:02:01 +0200 Message-ID: <20180820150201.t2qoqvpsd66arprz@flea> References: <20180724163655.61365-1-icenowy@aosc.io> <20180726124119.dwne2sncws2p3sdi@flea> <20180820120046.7tonxtb52q43ocfq@flea> <2782CDF6-C36F-49EF-97AE-75382C416489@aosc.io> Reply-To: maxime.ripard-LDxbnhwyfcJBDgjK7y7TUQ@public.gmane.org Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="ubiy6wokou235udw" Return-path: Sender: linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org Content-Disposition: inline In-Reply-To: <2782CDF6-C36F-49EF-97AE-75382C416489-h8G6r0blFSE@public.gmane.org> List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , To: Icenowy Zheng Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Chen-Yu Tsai , linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: devicetree@vger.kernel.org --ubiy6wokou235udw Content-Type: text/plain; charset="UTF-8" Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Aug 20, 2018 at 08:06:21PM +0800, Icenowy Zheng wrote: >=20 >=20 > =E4=BA=8E 2018=E5=B9=B48=E6=9C=8820=E6=97=A5 GMT+08:00 =E4=B8=8B=E5=8D=88= 8:00:46, Maxime Ripard =E5=86=99=E5=88=B0: > >Hi! > > > >On Wed, Aug 08, 2018 at 06:36:56PM +0800, Icenowy Zheng wrote: > >> =E5=9C=A8 2018-07-26=E5=9B=9B=E7=9A=84 14:41 +0200=EF=BC=8CMaxime Ripa= rd=E5=86=99=E9=81=93=EF=BC=9A > >> > On Wed, Jul 25, 2018 at 12:36:55AM +0800, Icenowy Zheng wrote: > >> > > Banana Pi designs the BPi M2 Berry board to be software > >compatible > >> > > with > >> > > BPi M2 Ultra, > >> >=20 > >> > Do you have a reference for this? > >> >=20 > >> > > so it's based on M2 Ultra with some function cuts, including: > >> > >=20 > >> > > - 2048MiB DRAM -> 1024MiB (this should be proceed by the > >> > > bootloader); > >> > > - dropped a LED; > >> > > - dropped eMMC; > >> > > - dropped USB2 and connect USB1 to a 4-port HUB. > >> >=20 > >> > Is it the exhaustive list? > >>=20 > >> I have asked Mikey from Sinovoip, and he has agreed this. > >>=20 > >> Here's a list provided by him, which covers some things I forgot: > >> - 2GiB -> 1GiB > >> - no eMMC > >> - no onboard microphone > >> - no IR > >> - no charging (and power jack to USB) > >> - USB change > >> - one less LED > >>=20 > >> Should I add this to the device tree's comment? > > > >Not really, because... > > > >> >=20 > >> > I'm a bit reluctant to merge that kind of patches usually, since > >that > >> > would also imply that each time someone will commit something to > >the > >> > M2-Ultra, it would automatically apply to the M2-Berry, without any > >> > easy way to tell and / or test. > > > >... this still applies. >=20 > But I think few developers will have both boards at the same time. Which is only making it worse, because then someone with only the BPI m2-ultra, when changing the DT, will not be able to tell that: - it's applied to the M2-Berry too, - if it works on the M2-Berry. Maxime --=20 Maxime Ripard, Bootlin (formerly Free Electrons) Embedded Linux and Kernel engineering https://bootlin.com --=20 You received this message because you are subscribed to the Google Groups "= linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an e= mail to linux-sunxi+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit https://groups.google.com/d/optout. --ubiy6wokou235udw Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE0VqZU19dR2zEVaqr0rTAlCFNr3QFAlt61+gACgkQ0rTAlCFN r3T6cA/9HJs6NWHZ6nfVmUQT5rFNFR6ovzGPpAqny2McXM8oc1+Ytcj3tYqC6WZf H/kqoZzK6qU+Xmkw0l0kK0OIaQ7SYAhwQ5o1JzFoMewaiD5X2YpNfU55sX93qbc8 bu5EW8nsm/knwFx1zFFVEmkA2TykOM8L3f1jj4xqqEfSfdIWjWL9ZvArNT6W5pvE zIZsUFmaaMb+Z+ndSGzzMdJtzDR+832kyiugqYjwy9GNAh0WhNpqetaR0owhjqc2 /R3Emcdc4cpZl1zCE8mRPp6F69RhwXEvSZz7TqWQDaGBP/okuFsp+ULgHu06uJ18 DOGtUc7PeqKJobXXftG20HiA05COno/2ta/iRBEv5D7O64X7saSOY5Kl3GHKcgt7 WB5agJ8w4Tg8G4+n6MP5mmmJdjH3uNAiZPb6TR7Ex7MDf6gJiO4OJt2NIpimzz77 9E+PAe6KR1ZgZjSpE+8ZO+7iUrOA7ehQP5D4cgtj3RomnCCWBsBoa4Ct0yP9Feob pvEZ+iWW9aYRuq2BaOIyBWn4Sd9h4RuBleMJ9qJuqpAZkd/E131qf7qFPvwGb0rD w7cUtFtjLEp8bXukUavxkyXFJeTBI0zQxsdy0OETJ1137RE5P3FwtVUgeWQVIL3P k4ABBfC6s8c2FpxE2ZkqC0PrtUDvEiprPSZ0gNfitlj7VGQiqYg= =bOvK -----END PGP SIGNATURE----- --ubiy6wokou235udw--