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authorDinh Nguyen <dinguyen@altera.com>2013-09-17 00:57:48 +0400
committerRob Herring <rob.herring@calxeda.com>2013-09-25 06:13:38 +0400
commit53126a2f679382f3eac370a012290f19c672f088 (patch)
treeeeb22dde6ab6b9dba18f3fc43aceb2da95c42680 /Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt
parentb0b8c960ffcc5bfc82d1a09ad931673e3a36c15a (diff)
downloadlinux-53126a2f679382f3eac370a012290f19c672f088.tar.xz
dts: Fix misspelling of Synopsys
s/Synopsis/Synopsys s/synopsis/synopsys Signed-off-by: Dinh Nguyen <dinguyen@altera.com> Cc: Pavel Machek <pavel@denx.de> CC: Arnd Bergmann <arnd@arndb.de> CC: Olof Johansson <olof@lixom.net> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Ian Campbell <ian.campbell@citrix.com> Cc: Chris Ball <cjb@laptop.org> Cc: Jaehoon Chung <jh80.chung@samsung.com> Cc: Seungwon Jeon <tgih.jun@samsung.com> Cc: Tomasz Figa <tomasz.figa@gmail.com> Cc: devicetree@vger.kernel.org Cc: linux-mmc@vger.kernel.org CC: linux-arm-kernel@lists.infradead.org Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
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-* Synopsis Designware Mobile Storage Host Controller
-
-The Synopsis designware mobile storage host controller is used to interface
-a SoC with storage medium such as eMMC or SD/MMC cards. This file documents
-differences between the core mmc properties described by mmc.txt and the
-properties used by the Synopsis Designware Mobile Storage Host Controller.
-
-Required Properties:
-
-* compatible: should be
- - snps,dw-mshc: for controllers compliant with synopsis dw-mshc.
-* #address-cells: should be 1.
-* #size-cells: should be 0.
-
-# Slots: The slot specific information are contained within child-nodes with
- each child-node representing a supported slot. There should be atleast one
- child node representing a card slot. The name of the child node representing
- the slot is recommended to be slot@n where n is the unique number of the slot
- connnected to the controller. The following are optional properties which
- can be included in the slot child node.
-
- * reg: specifies the physical slot number. The valid values of this
- property is 0 to (num-slots -1), where num-slots is the value
- specified by the num-slots property.
-
- * bus-width: as documented in mmc core bindings.
-
- * wp-gpios: specifies the write protect gpio line. The format of the
- gpio specifier depends on the gpio controller. If a GPIO is not used
- for write-protect, this property is optional.
-
- * disable-wp: If the wp-gpios property isn't present then (by default)
- we'd assume that the write protect is hooked up directly to the
- controller's special purpose write protect line (accessible via
- the WRTPRT register). However, it's possible that we simply don't
- want write protect. In that case specify 'disable-wp'.
- NOTE: This property is not required for slots known to always
- connect to eMMC or SDIO cards.
-
-Optional properties:
-
-* clocks: from common clock binding: handle to biu and ciu clocks for the
- bus interface unit clock and the card interface unit clock.
-
-* clock-names: from common clock binding: Shall be "biu" and "ciu".
- If the biu clock is missing we'll simply skip enabling it. If the
- ciu clock is missing we'll just assume that the clock is running at
- clock-frequency. It is an error to omit both the ciu clock and the
- clock-frequency.
-
-* clock-frequency: should be the frequency (in Hz) of the ciu clock. If this
- is specified and the ciu clock is specified then we'll try to set the ciu
- clock to this at probe time.
-
-* num-slots: specifies the number of slots supported by the controller.
- The number of physical slots actually used could be equal or less than the
- value specified by num-slots. If this property is not specified, the value
- of num-slot property is assumed to be 1.
-
-* fifo-depth: The maximum size of the tx/rx fifo's. If this property is not
- specified, the default value of the fifo size is determined from the
- controller registers.
-
-* card-detect-delay: Delay in milli-seconds before detecting card after card
- insert event. The default value is 0.
-
-* supports-highspeed: Enables support for high speed cards (up to 50MHz)
-
-* broken-cd: as documented in mmc core bindings.
-
-* vmmc-supply: The phandle to the regulator to use for vmmc. If this is
- specified we'll defer probe until we can find this regulator.
-
-Aliases:
-
-- All the MSHC controller nodes should be represented in the aliases node using
- the following format 'mshc{n}' where n is a unique number for the alias.
-
-Example:
-
-The MSHC controller node can be split into two portions, SoC specific and
-board specific portions as listed below.
-
- dwmmc0@12200000 {
- compatible = "snps,dw-mshc";
- clocks = <&clock 351>, <&clock 132>;
- clock-names = "biu", "ciu";
- reg = <0x12200000 0x1000>;
- interrupts = <0 75 0>;
- #address-cells = <1>;
- #size-cells = <0>;
- };
-
- dwmmc0@12200000 {
- clock-frequency = <400000000>;
- num-slots = <1>;
- supports-highspeed;
- broken-cd;
- fifo-depth = <0x80>;
- card-detect-delay = <200>;
- vmmc-supply = <&buck8>;
-
- slot@0 {
- reg = <0>;
- bus-width = <8>;
- };
- };