From mboxrd@z Thu Jan 1 00:00:00 1970 From: Markus Reichl Subject: Re: [PATCH 1/1] ARM: dts: Add HS400 support for exynos5422-odroidxu3 Date: Tue, 31 Mar 2015 14:27:50 +0200 Message-ID: <551A92C6.7070906@fivetechno.de> References: <551970E5.3000308@fivetechno.de> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="tEj1UxXdjxDqdwKPqu8i6qAT00VrwjWRo" Return-path: Received: from wp126.webpack.hosteurope.de ([80.237.132.133]:59205 "EHLO wp126.webpack.hosteurope.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750907AbbCaM1y (ORCPT ); Tue, 31 Mar 2015 08:27:54 -0400 Received: from [192.168.34.101] (reichl-x64.fritz.box [192.168.34.101]) (authenticated bits=0) by linuxbbg.five-lan.de (8.14.9/8.14.5/SuSE Linux 0.8) with ESMTP id t2VCRp6d019015 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO) for ; Tue, 31 Mar 2015 14:27:51 +0200 In-Reply-To: <551970E5.3000308@fivetechno.de> Sender: linux-samsung-soc-owner@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org To: linux-samsung-soc@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --tEj1UxXdjxDqdwKPqu8i6qAT00VrwjWRo Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Am 30.03.2015 um 17:51 schrieb Markus Reichl: > HS400 timing values are added for exynos5422-odroidxu3 board. > --- > This patch is analog to [0]. > This patch needs [0] for the pin-ctrl definition of sd0_rclk. >=20 > [0]: https://www.mail-archive.com/linux-samsung-soc%40vger.kernel.org/m= sg42902.html >=20 > Signed-off-by: Markus Reichl > --- > arch/arm/boot/dts/exynos5422-odroidxu3.dts | 7 ++++++- > 1 file changed, 6 insertions(+), 1 deletion(-) >=20 > diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3.dts b/arch/arm/boot= /dts/exynos5422-odroidxu3.dts > index a519c86..0408ec0 100644 > --- a/arch/arm/boot/dts/exynos5422-odroidxu3.dts > +++ b/arch/arm/boot/dts/exynos5422-odroidxu3.dts > @@ -298,15 +298,20 @@ > =20 > &mmc_0 { > status =3D "okay"; > + num-slots =3D <1>; > broken-cd; > card-detect-delay =3D <200>; > samsung,dw-mshc-ciu-div =3D <3>; > samsung,dw-mshc-sdr-timing =3D <0 4>; > samsung,dw-mshc-ddr-timing =3D <0 2>; > + samsung,dw-mshc-hs400-timing =3D <0 2>; > + samsung,read-strobe-delay =3D <90>; > pinctrl-names =3D "default"; > - pinctrl-0 =3D <&sd0_clk &sd0_cmd &sd0_bus4 &sd0_bus8>; > + pinctrl-0 =3D <&sd0_clk &sd0_cmd &sd0_bus1 &sd0_bus4 &sd0_bus8 &sd0_r= clk>; > bus-width =3D <8>; > cap-mmc-highspeed; > + mmc-hs200-1_8v; > + mmc-hs400-1_8v; > }; > =20 > &mmc_2 { >=20 hdparm -t /dev/mmcblk0 without this patch: /dev/mmcblk0: Timing buffered disk reads: 230 MB in 3.01 seconds =3D 76.30 MB/sec with this patch: /dev/mmcblk0: Timing buffered disk reads: 588 MB in 3.00 seconds =3D 195.92 MB/sec cat /sys/kernel/debug/mmc0/ios without patch: clock: 52000000 Hz vdd: 7 (1.65 - 1.95 V) bus mode: 2 (push-pull) chip select: 0 (don't care) power mode: 2 (on) bus width: 3 (8 bits) timing spec: 8 (mmc DDR52) signal voltage: 0 (1.80 V) with patch: clock: 200000000 Hz vdd: 7 (1.65 - 1.95 V) bus mode: 2 (push-pull) chip select: 0 (don't care) power mode: 2 (on) bus width: 3 (8 bits) timing spec: 10 (mmc HS400) signal voltage: 0 (1.80 V) Best Regards --=20 Markus Reichl --tEj1UxXdjxDqdwKPqu8i6qAT00VrwjWRo Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iEYEARECAAYFAlUaksYACgkQ7DLr+WDJfp5kVgCeNeyOIIUFzRNPS+PGBdZVsnQz fVoAniKHgF/JNRLDXZFUG4h2QrJe+DEY =BcJt -----END PGP SIGNATURE----- --tEj1UxXdjxDqdwKPqu8i6qAT00VrwjWRo--