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authorLinus Torvalds <torvalds@linux-foundation.org>2012-03-28 23:59:45 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-28 23:59:45 -0400
commitb5174fa3a7f4f8f150bfa3b917c92608953dfa0f (patch)
tree5efd32dd52fe55f760094e78f18acd3ff869751d /Documentation/devicetree
parentafb9bd704c7116076879352a2cc2c43aa12c1e14 (diff)
parent135111cc5595c6a24dd826d503e2d2bae92da1c4 (diff)
Merge tag 'mmc-merge-for-3.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
Pull MMC updates from Chris Ball: Core: * Support for MMC 4.5 Data Tag feature -- we tag REQ_META, so devices that support Data Tag will provide increased throughput for metadata. * Faster detection of card removal on I/O errors. Drivers: * dw_mmc now supports eMMC Power Off Notify, has PCI support, and implements pre_req and post_req for asynchronous requests. * omap_hsmmc now supports device tree. * esdhc now has power management support. * sdhci-tegra now supports Tegra30 devices. * sdhci-spear now supports hibernation. * tmio_mmc now supports using a GPIO for card detection. * Intel PCH now supports 8-bit bus transfers. * tag 'mmc-merge-for-3.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (53 commits) mmc: sh_mmcif: simplify bitmask macros mmc: sh_mobile_sdhi: support modular mmc-core with non-standard hotplug mmc: sh_mobile_sdhi: add a callback for board specific init code mmc: tmio: cosmetic: prettify the tmio_mmc_set_ios() function mmc: sh_mobile_sdhi: do not manage PM clocks manually mmc: tmio_mmc: remove unused sdio_irq_enabled flag mmc: tmio_mmc: power status flag doesn't have to be exposed in platform data mmc: sh_mobile_sdhi: pass card hotplug GPIO number to TMIO MMC mmc: tmio_mmc: support the generic MMC GPIO card hotplug helper mmc: tmio: calculate the native hotplug condition only once mmc: simplify mmc_cd_gpio_request() by removing two parameters mmc: sdhci-pci: allow 8-bit bus width for Intel PCH mmc: sdhci: check interrupt flags in ISR again mmc: sdhci-pci: Add MSI support mmc: core: warn when card doesn't support HPI mmc: davinci: Poll status for small size transfers mmc: davinci: Eliminate spurious interrupts mmc: omap_hsmmc: Avoid a regulator voltage change with dt mmc: omap_hsmmc: Convert hsmmc driver to use device tree mmc: sdhci-pci: add SDHCI_QUIRK2_HOST_OFF_CARD_ON for Medfield SDIO ...
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt33
1 files changed, 33 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
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+++ b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
@@ -0,0 +1,33 @@
1* TI Highspeed MMC host controller for OMAP
2
3The Highspeed MMC Host Controller on TI OMAP family
4provides an interface for MMC, SD, and SDIO types of memory cards.
5
6Required properties:
7- compatible:
8 Should be "ti,omap2-hsmmc", for OMAP2 controllers
9 Should be "ti,omap3-hsmmc", for OMAP3 controllers
10 Should be "ti,omap4-hsmmc", for OMAP4 controllers
11- ti,hwmods: Must be "mmc<n>", n is controller instance starting 1
12- reg : should contain hsmmc registers location and length
13
14Optional properties:
15ti,dual-volt: boolean, supports dual voltage cards
16<supply-name>-supply: phandle to the regulator device tree node
17"supply-name" examples are "vmmc", "vmmc_aux" etc
18ti,bus-width: Number of data lines, default assumed is 1 if the property is missing.
19cd-gpios: GPIOs for card detection
20wp-gpios: GPIOs for write protection
21ti,non-removable: non-removable slot (like eMMC)
22ti,needs-special-reset: Requires a special softreset sequence
23
24Example:
25 mmc1: mmc@0x4809c000 {
26 compatible = "ti,omap4-hsmmc";
27 reg = <0x4809c000 0x400>;
28 ti,hwmods = "mmc1";
29 ti,dual-volt;
30 ti,bus-width = <4>;
31 vmmc-supply = <&vmmc>; /* phandle to regulator node */
32 ti,non-removable;
33 };