From mboxrd@z Thu Jan 1 00:00:00 1970 From: ulf.hansson@linaro.org (Ulf Hansson) Date: Thu, 10 Apr 2014 14:20:46 +0200 Subject: [PATCH V3 03/19] mmc: mmci: Update DT documentation In-Reply-To: <1397132462-8005-1-git-send-email-ulf.hansson@linaro.org> References: <1397132462-8005-1-git-send-email-ulf.hansson@linaro.org> Message-ID: <1397132462-8005-4-git-send-email-ulf.hansson@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Document how to configure the regulator supplies and add an example of a typical mmci DT node. Signed-off-by: Ulf Hansson --- Documentation/devicetree/bindings/mmc/mmci.txt | 39 ++++++++++++++++++++++-- 1 file changed, 36 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/mmc/mmci.txt b/Documentation/devicetree/bindings/mmc/mmci.txt index 2b584ca..ff233d1 100644 --- a/Documentation/devicetree/bindings/mmc/mmci.txt +++ b/Documentation/devicetree/bindings/mmc/mmci.txt @@ -8,8 +8,41 @@ by mmc.txt and the properties used by the mmci driver. Required properties: - compatible : contains "arm,pl18x", "arm,primecell". -- arm,primecell-periphid : contains the PrimeCell Peripheral ID. +- vmmc-supply : phandle to the regulator device tree node, mentioned + as the VCC/VDD supply in the eMMC/SD specs. Optional properties: -- mmc-cap-mmc-highspeed : indicates whether MMC is high speed capable -- mmc-cap-sd-highspeed : indicates whether SD is high speed capable +- arm,primecell-periphid : contains the PrimeCell Peripheral ID, it overrides + the ID provided by the HW +- mmc-cap-mmc-highspeed : indicates whether MMC is high speed capable. +- mmc-cap-sd-highspeed : indicates whether SD is high speed capable. +- vqmmc-supply : phandle to the regulator device tree node, mentioned + as the VCCQ/VDD_IO supply in the eMMC/SD specs. + +Example: + +sdi0_per1 at 80126000 { + compatible = "arm,pl18x", "arm,primecell"; + reg = <0x80126000 0x1000>; + interrupts = <0 60 IRQ_TYPE_LEVEL_HIGH>; + + dmas = <&dma 29 0 0x2>, /* Logical - DevToMem */ + <&dma 29 0 0x0>; /* Logical - MemToDev */ + dma-names = "rx", "tx"; + + clocks = <&prcc_kclk 1 5>, <&prcc_pclk 1 5>; + clock-names = "sdi", "apb_pclk"; + + max-frequency = <100000000>; + bus-width = <4>; + mmc-cap-sd-highspeed; + mmc-cap-mmc-highspeed; + cd-gpios = <&gpio2 31 0x4>; // 95 + + vmmc-supply = <&ab8500_ldo_aux3_reg>; + vqmmc-supply = <&vmmci>; + + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&sdi0_default_mode>; + pinctrl-1 = <&sdi0_sleep_mode>; +}; -- 1.7.9.5