From mboxrd@z Thu Jan 1 00:00:00 1970 From: Russell King - ARM Linux Subject: Re: [PATCH 1/3] mmc: add support for power-on sequencing through DT Date: Sat, 15 Feb 2014 12:27:33 +0000 Message-ID: <20140215122733.GK30257@n2100.arm.linux.org.uk> References: <1390190215-22700-1-git-send-email-olof@lixom.net> <20140213144106.GW26684@n2100.arm.linux.org.uk> <1626419.Ta3A7zgHIt@wuerfel> <3871646.18hjUjnpmg@wuerfel> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <3871646.18hjUjnpmg@wuerfel> Sender: linux-mmc-owner@vger.kernel.org To: Arnd Bergmann Cc: linux-arm-kernel@lists.infradead.org, mark.rutland@arm.com, devicetree@vger.kernel.org, Ulf Hansson , Pawel Moll , Ian Campbell , Tomasz Figa , linux-mmc , Tomasz Figa , Chris Ball , robh+dt@kernel.org, Kumar Gala , Olof Johansson , Fabio Estevam , Sascha Hauer List-Id: devicetree@vger.kernel.org On Sat, Feb 15, 2014 at 01:18:02PM +0100, Arnd Bergmann wrote: > If a wlan adapter has both SPI and SDIO front-ends, the external > dependencies (reset, clock, voltage, ...) will be the same, and > from the kernel perspective the main difference is that SPI cannot > be probed at all, while SDIO can be probed as long as the device > is powered on already. Remember that MMC/SD/SDIO cards can be driven by either a MMC host interface, or a SPI interface. Both are probe-able. -- FTTC broadband for 0.8mile line: 5.8Mbps down 500kbps up. Estimation in database were 13.1 to 19Mbit for a good line, about 7.5+ for a bad. Estimate before purchase was "up to 13.2Mbit". From mboxrd@z Thu Jan 1 00:00:00 1970 From: linux@arm.linux.org.uk (Russell King - ARM Linux) Date: Sat, 15 Feb 2014 12:27:33 +0000 Subject: [PATCH 1/3] mmc: add support for power-on sequencing through DT In-Reply-To: <3871646.18hjUjnpmg@wuerfel> References: <1390190215-22700-1-git-send-email-olof@lixom.net> <20140213144106.GW26684@n2100.arm.linux.org.uk> <1626419.Ta3A7zgHIt@wuerfel> <3871646.18hjUjnpmg@wuerfel> Message-ID: <20140215122733.GK30257@n2100.arm.linux.org.uk> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Sat, Feb 15, 2014 at 01:18:02PM +0100, Arnd Bergmann wrote: > If a wlan adapter has both SPI and SDIO front-ends, the external > dependencies (reset, clock, voltage, ...) will be the same, and > from the kernel perspective the main difference is that SPI cannot > be probed at all, while SDIO can be probed as long as the device > is powered on already. Remember that MMC/SD/SDIO cards can be driven by either a MMC host interface, or a SPI interface. Both are probe-able. -- FTTC broadband for 0.8mile line: 5.8Mbps down 500kbps up. Estimation in database were 13.1 to 19Mbit for a good line, about 7.5+ for a bad. Estimate before purchase was "up to 13.2Mbit".