Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759404AbZAWTwQ (ORCPT ); Fri, 23 Jan 2009 14:52:16 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757807AbZAWTul (ORCPT ); Fri, 23 Jan 2009 14:50:41 -0500 Received: from rtsoft3.corbina.net ([85.21.88.6]:63430 "EHLO buildserver.ru.mvista.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1754977AbZAWTui (ORCPT ); Fri, 23 Jan 2009 14:50:38 -0500 Date: Fri, 23 Jan 2009 22:50:37 +0300 From: Anton Vorontsov To: David Brownell Cc: Andrew Morton , Kumar Gala , Grant Likely , linuxppc-dev@ozlabs.org, spi-devel-general@lists.sourceforge.net, linux-kernel@vger.kernel.org Subject: [PATCH 4/6] powerpc: Add mmc-spi-slot bindings Message-ID: <20090123195037.GD21237@oksana.dev.rtsoft.ru> References: <20090123194958.GA17355@oksana.dev.rtsoft.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Disposition: inline In-Reply-To: <20090123194958.GA17355@oksana.dev.rtsoft.ru> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2139 Lines: 62 The bindings describes a case where MMC/SD/SDIO slot directly connected to a SPI bus. Such setups are widely used on embedded PowerPC boards. The patch also adds the mmc-spi-slot entry to the OpenFirmware modalias table. Signed-off-by: Anton Vorontsov --- .../powerpc/dts-bindings/mmc-spi-slot.txt | 23 ++++++++++++++++++++ drivers/of/base.c | 1 + 2 files changed, 24 insertions(+), 0 deletions(-) create mode 100644 Documentation/powerpc/dts-bindings/mmc-spi-slot.txt diff --git a/Documentation/powerpc/dts-bindings/mmc-spi-slot.txt b/Documentation/powerpc/dts-bindings/mmc-spi-slot.txt new file mode 100644 index 0000000..c39ac28 --- /dev/null +++ b/Documentation/powerpc/dts-bindings/mmc-spi-slot.txt @@ -0,0 +1,23 @@ +MMC/SD/SDIO slot directly connected to a SPI bus + +Required properties: +- compatible : should be "mmc-spi-slot". +- reg : should specify SPI address (chip-select number). +- spi-max-frequency : maximum frequency for this device (Hz). +- voltage-ranges : two cells are required, first cell specifies minimum + slot voltage (mV), second cell specifies maximum slot voltage (mV). + Several ranges could be specified. +- gpios : (optional) may specify GPIOs in this order: Card-Detect GPIO, + Write-Protect GPIO. + +Example: + + mmc-slot@0 { + compatible = "fsl,mpc8323rdb-mmc-slot", + "mmc-spi-slot"; + reg = <0>; + gpios = <&qe_pio_d 14 1 + &qe_pio_d 15 0>; + voltage-ranges = <3300 3300>; + spi-max-frequency = <50000000>; + }; diff --git a/drivers/of/base.c b/drivers/of/base.c index cd17092..41c5dfd 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -446,6 +446,7 @@ struct of_modalias_table { }; static struct of_modalias_table of_modalias_table[] = { { "fsl,mcu-mpc8349emitx", "mcu-mpc8349emitx" }, + { "mmc-spi-slot", "mmc_spi" }, }; /** -- 1.5.6.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/