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authorLinus Torvalds <torvalds@linux-foundation.org>2012-07-23 01:36:08 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2012-07-23 01:36:08 +0200
commita6be1fcbc57f95bb47ef3c8e4ee3d83731b8f21e (patch)
tree88d762edfd97e7cdb0b41b8fe20c1ddb204c28c9 /Documentation/devicetree
parentMerge branch 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel... (diff)
parentmmc: sdhci-dove: Prepare for common clock framework (diff)
downloadlinux-a6be1fcbc57f95bb47ef3c8e4ee3d83731b8f21e.tar.xz
linux-a6be1fcbc57f95bb47ef3c8e4ee3d83731b8f21e.zip
Merge tag 'mmc-merge-for-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
Pull MMC updates from Chris Ball: "MMC highlights for 3.6: Core: - Rename cd-gpio to slot-gpio and extend it to support more slot GPIO functions, such as write-protect. - Add a function to get regulators (Vdd and Vccq) for a host. Drivers: - sdhci-pxav2, sdhci-pxav3: Add device tree support. - sdhi: Add device tree support. - sh_mmcif: Add support for regulators, device tree, slot-gpio. - tmio: Add regulator support, use slot-gpio." * tag 'mmc-merge-for-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (62 commits) mmc: sdhci-dove: Prepare for common clock framework mmc: sdhci-dove: Add SDHCI_QUIRK_NO_HISPD_BIT mmc: omap_hsmmc: ensure probe returns error upon resource failure mmc: mxs-mmc: Add wp-inverted property mmc: esdhc: Fix DMA_MASK to not break mx25 DMA access mmc: core: reset signal voltage on power up mmc: sd: Fix sd current limit setting mmc: omap_hsmmc: add clk_prepare and clk_unprepare mmc: sdhci: When a UHS switch fails, cycle power if regulator is used mmc: atmel-mci: modify CLKDIV displaying in debugfs mmc: atmel-mci: fix incorrect setting of host->data to NULL mmc: sdhci: poll for card even when card is logically unremovable mmc: sdhci: Introduce new flag SDHCI_USING_RETUNING_TIMER mmc: sdio: Change pr_warning to pr_warn_ratelimited mmc: core: Simplify and fix for SD switch processing mmc: sdhci: restore host settings when card is removed mmc: sdhci: fix incorrect command used in tuning mmc: sdhci-pci: CaFe has broken card detection mmc: sdhci: Report failure reasons for all cases in sdhci_add_host() mmc: s3cmci: Convert s3cmci driver to gpiolib API ...
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/mmc/fsl-esdhc.txt25
-rw-r--r--Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt8
-rw-r--r--Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt8
-rw-r--r--Documentation/devicetree/bindings/mmc/mmc.txt10
-rw-r--r--Documentation/devicetree/bindings/mmc/mmci.txt12
-rw-r--r--Documentation/devicetree/bindings/mmc/mxs-mmc.txt8
-rw-r--r--Documentation/devicetree/bindings/mmc/nvidia-sdhci.txt8
-rw-r--r--Documentation/devicetree/bindings/mmc/sdhci-pxa.txt21
-rw-r--r--Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt7
9 files changed, 61 insertions, 46 deletions
diff --git a/Documentation/devicetree/bindings/mmc/fsl-esdhc.txt b/Documentation/devicetree/bindings/mmc/fsl-esdhc.txt
index 0d93b4b0e0e3..bd9be0b5bc20 100644
--- a/Documentation/devicetree/bindings/mmc/fsl-esdhc.txt
+++ b/Documentation/devicetree/bindings/mmc/fsl-esdhc.txt
@@ -3,21 +3,22 @@
The Enhanced Secure Digital Host Controller provides an interface
for MMC, SD, and SDIO types of memory cards.
+This file documents differences between the core properties described
+by mmc.txt and the properties used by the sdhci-esdhc driver.
+
Required properties:
- - compatible : should be
- "fsl,<chip>-esdhc", "fsl,esdhc"
- - reg : should contain eSDHC registers location and length.
- - interrupts : should contain eSDHC interrupt.
- interrupt-parent : interrupt source phandle.
- clock-frequency : specifies eSDHC base clock frequency.
- - sdhci,wp-inverted : (optional) specifies that eSDHC controller
- reports inverted write-protect state; New devices should use
- the generic "wp-inverted" property.
- - sdhci,1-bit-only : (optional) specifies that a controller can
- only handle 1-bit data transfers. New devices should use the
- generic "bus-width = <1>" property.
- - sdhci,auto-cmd12: (optional) specifies that a controller can
- only handle auto CMD12.
+
+Optional properties:
+ - sdhci,wp-inverted : specifies that eSDHC controller reports
+ inverted write-protect state; New devices should use the generic
+ "wp-inverted" property.
+ - sdhci,1-bit-only : specifies that a controller can only handle
+ 1-bit data transfers. New devices should use the generic
+ "bus-width = <1>" property.
+ - sdhci,auto-cmd12: specifies that a controller can only handle auto
+ CMD12.
Example:
diff --git a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
index fea541ee8b34..70cd49b1caa8 100644
--- a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
+++ b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
@@ -3,17 +3,15 @@
The Enhanced Secure Digital Host Controller on Freescale i.MX family
provides an interface for MMC, SD, and SDIO types of memory cards.
+This file documents differences between the core properties described
+by mmc.txt and the properties used by the sdhci-esdhc-imx driver.
+
Required properties:
- compatible : Should be "fsl,<chip>-esdhc"
-- reg : Should contain eSDHC registers location and length
-- interrupts : Should contain eSDHC interrupt
Optional properties:
-- non-removable : Indicate the card is wired to host permanently
- fsl,cd-internal : Indicate to use controller internal card detection
- fsl,wp-internal : Indicate to use controller internal write protection
-- cd-gpios : Specify GPIOs for card detection
-- wp-gpios : Specify GPIOs for write protection
Examples:
diff --git a/Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt b/Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt
index d64aea5a4203..0e5e2ec4001d 100644
--- a/Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt
+++ b/Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt
@@ -1,8 +1,9 @@
MMC/SD/SDIO slot directly connected to a SPI bus
+This file documents differences between the core properties described
+by mmc.txt and the properties used by the mmc_spi driver.
+
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).
@@ -11,8 +12,7 @@ Required properties:
Optional properties:
- gpios : may specify GPIOs in this order: Card-Detect GPIO,
Write-Protect GPIO. Note that this does not follow the
- binding from mmc.txt, for historic reasons.
-- interrupts : the interrupt of a card detect interrupt.
+ binding from mmc.txt, for historical reasons.
- interrupt-parent : the phandle for the interrupt controller that
services interrupts for this device.
diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt
index 6e70dcde0a71..8a6811f4a02f 100644
--- a/Documentation/devicetree/bindings/mmc/mmc.txt
+++ b/Documentation/devicetree/bindings/mmc/mmc.txt
@@ -2,13 +2,17 @@ These properties are common to multiple MMC host controllers. Any host
that requires the respective functionality should implement them using
these definitions.
+Interpreted by the OF core:
+- reg: Registers location and length.
+- interrupts: Interrupts used by the MMC controller.
+
Required properties:
- bus-width: Number of data lines, can be <1>, <4>, or <8>
Optional properties:
-- cd-gpios : Specify GPIOs for card detection, see gpio binding
-- wp-gpios : Specify GPIOs for write protection, see gpio binding
-- cd-inverted: when present, polarity on the wp gpio line is inverted
+- cd-gpios: Specify GPIOs for card detection, see gpio binding
+- wp-gpios: Specify GPIOs for write protection, see gpio binding
+- cd-inverted: when present, polarity on the cd gpio line is inverted
- wp-inverted: when present, polarity on the wp gpio line is inverted
- non-removable: non-removable slot (like eMMC)
- max-frequency: maximum operating clock frequency
diff --git a/Documentation/devicetree/bindings/mmc/mmci.txt b/Documentation/devicetree/bindings/mmc/mmci.txt
index 14a81d526118..2b584cae352a 100644
--- a/Documentation/devicetree/bindings/mmc/mmci.txt
+++ b/Documentation/devicetree/bindings/mmc/mmci.txt
@@ -1,19 +1,15 @@
* ARM PrimeCell MultiMedia Card Interface (MMCI) PL180/1
-The ARM PrimeCell MMCI PL180 and PL181 provides and interface for
+The ARM PrimeCell MMCI PL180 and PL181 provides an interface for
reading and writing to MultiMedia and SD cards alike.
+This file documents differences between the core properties described
+by mmc.txt and the properties used by the mmci driver.
+
Required properties:
- compatible : contains "arm,pl18x", "arm,primecell".
-- reg : contains pl18x registers and length.
-- interrupts : contains the device IRQ(s).
- arm,primecell-periphid : contains the PrimeCell Peripheral ID.
Optional properties:
-- wp-gpios : contains any write protect (ro) gpios
-- cd-gpios : contains any card detection gpios
-- cd-inverted : indicates whether the cd gpio is inverted
-- max-frequency : contains the maximum operating frequency
-- bus-width : number of data lines, can be <1>, <4>, or <8>
- mmc-cap-mmc-highspeed : indicates whether MMC is high speed capable
- mmc-cap-sd-highspeed : indicates whether SD is high speed capable
diff --git a/Documentation/devicetree/bindings/mmc/mxs-mmc.txt b/Documentation/devicetree/bindings/mmc/mxs-mmc.txt
index 14d870a9e3db..54949f6faede 100644
--- a/Documentation/devicetree/bindings/mmc/mxs-mmc.txt
+++ b/Documentation/devicetree/bindings/mmc/mxs-mmc.txt
@@ -3,16 +3,14 @@
The Freescale MXS Synchronous Serial Ports (SSP) can act as a MMC controller
to support MMC, SD, and SDIO types of memory cards.
+This file documents differences between the core properties in mmc.txt
+and the properties used by the mxsmmc driver.
+
Required properties:
- compatible: Should be "fsl,<chip>-mmc". The supported chips include
imx23 and imx28.
-- reg: Should contain registers location and length
- interrupts: Should contain ERROR and DMA interrupts
- fsl,ssp-dma-channel: APBH DMA channel for the SSP
-- bus-width: Number of data lines, can be <1>, <4>, or <8>
-
-Optional properties:
-- wp-gpios: Specify GPIOs for write protection
Examples:
diff --git a/Documentation/devicetree/bindings/mmc/nvidia-sdhci.txt b/Documentation/devicetree/bindings/mmc/nvidia-sdhci.txt
index f77c3031607f..c6d7b11db9eb 100644
--- a/Documentation/devicetree/bindings/mmc/nvidia-sdhci.txt
+++ b/Documentation/devicetree/bindings/mmc/nvidia-sdhci.txt
@@ -3,15 +3,13 @@
This controller on Tegra family SoCs provides an interface for MMC, SD,
and SDIO types of memory cards.
+This file documents differences between the core properties described
+by mmc.txt and the properties used by the sdhci-tegra driver.
+
Required properties:
- compatible : Should be "nvidia,<chip>-sdhci"
-- reg : Should contain SD/MMC registers location and length
-- interrupts : Should contain SD/MMC interrupt
-- bus-width : Number of data lines, can be <1>, <4>, or <8>
Optional properties:
-- cd-gpios : Specify GPIOs for card detection
-- wp-gpios : Specify GPIOs for write protection
- power-gpios : Specify GPIOs for power control
Example:
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-pxa.txt b/Documentation/devicetree/bindings/mmc/sdhci-pxa.txt
new file mode 100644
index 000000000000..dbe98a3c183a
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/sdhci-pxa.txt
@@ -0,0 +1,21 @@
+* Marvell sdhci-pxa v2/v3 controller
+
+This file documents differences between the core properties in mmc.txt
+and the properties used by the sdhci-pxav2 and sdhci-pxav3 drivers.
+
+Required properties:
+- compatible: Should be "mrvl,pxav2-mmc" or "mrvl,pxav3-mmc".
+
+Optional properties:
+- mrvl,clk-delay-cycles: Specify a number of cycles to delay for tuning.
+
+Example:
+
+sdhci@d4280800 {
+ compatible = "mrvl,pxav3-mmc";
+ reg = <0xd4280800 0x800>;
+ bus-width = <8>;
+ interrupts = <27>;
+ non-removable;
+ mrvl,clk-delay-cycles = <31>;
+};
diff --git a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
index 8a53958c9a9f..be76a23b34c4 100644
--- a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
+++ b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
@@ -3,21 +3,20 @@
The Highspeed MMC Host Controller on TI OMAP family
provides an interface for MMC, SD, and SDIO types of memory cards.
+This file documents differences between the core properties described
+by mmc.txt and the properties used by the omap_hsmmc driver.
+
Required properties:
- compatible:
Should be "ti,omap2-hsmmc", for OMAP2 controllers
Should be "ti,omap3-hsmmc", for OMAP3 controllers
Should be "ti,omap4-hsmmc", for OMAP4 controllers
- ti,hwmods: Must be "mmc<n>", n is controller instance starting 1
-- reg : should contain hsmmc registers location and length
Optional properties:
ti,dual-volt: boolean, supports dual voltage cards
<supply-name>-supply: phandle to the regulator device tree node
"supply-name" examples are "vmmc", "vmmc_aux" etc
-bus-width: Number of data lines, default assumed is 1 if the property is missing.
-cd-gpios: GPIOs for card detection
-wp-gpios: GPIOs for write protection
ti,non-removable: non-removable slot (like eMMC)
ti,needs-special-reset: Requires a special softreset sequence