Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754023AbYJ3T4l (ORCPT ); Thu, 30 Oct 2008 15:56:41 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751673AbYJ3T4c (ORCPT ); Thu, 30 Oct 2008 15:56:32 -0400 Received: from rtsoft3.corbina.net ([85.21.88.6]:3501 "EHLO buildserver.ru.mvista.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1751035AbYJ3T4b (ORCPT ); Thu, 30 Oct 2008 15:56:31 -0400 Date: Thu, 30 Oct 2008 22:56:30 +0300 From: Anton Vorontsov To: linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org Cc: David Brownell , Pierre Ossman , Grant Likely Subject: [PATCH 1/3] powerpc: Add mmc-spi-slot bindings Message-ID: <20081030195630.GA13640@oksana.dev.rtsoft.ru> References: <20081030195546.GA30645@oksana.dev.rtsoft.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=windows-1251 Content-Disposition: inline In-Reply-To: <20081030195546.GA30645@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 7c79e94..c6797ca 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -411,6 +411,7 @@ struct of_modalias_table { }; static struct of_modalias_table of_modalias_table[] = { { "fsl,mcu-mpc8349emitx", "mcu-mpc8349emitx" }, + { "mmc-spi-slot", "mmc_spi" }, }; /** -- 1.5.6.3 -- 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/