MMC highlights for 3.8:

Core:
  - Expose access to the eMMC RPMB ("Replay Protected Memory Block") area
    by extending the existing mmc_block ioctl.
  - Add SDIO powered-suspend DT properties to the core MMC DT binding.
  - Add no-1-8-v DT flag for boards where the SD controller reports that it
    supports 1.8V but the board itself has no way to switch to 1.8V.
  - More work on switching to 1.8V UHS support using a vqmmc regulator.
  - Fix up a case where the slot-gpio helper may fail to reset the host
    controller properly if a card was removed during a transfer.
  - Fix several cases where a broken device could cause an infinite loop
    while we wait for a register to update.
 
 Drivers:
  - at91-mci: Remove obsolete driver, atmel-mci handles these devices now.
  - sdhci-dove: Allow using GPIOs for card-detect notifications.
  - sdhci-esdhc: Fix for recovering from ADMA errors on broken silicon.
  - sdhci-s3c: Add pinctrl support.
  - wmt-sdmmc: New driver for WonderMedia SD/MMC controllers.
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Merge tag 'mmc-updates-for-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

Pull MMC updates from Chris Ball:
 "MMC highlights for 3.8:

  Core:
   - Expose access to the eMMC RPMB ("Replay Protected Memory Block")
     area by extending the existing mmc_block ioctl.
   - Add SDIO powered-suspend DT properties to the core MMC DT binding.
   - Add no-1-8-v DT flag for boards where the SD controller reports
     that it supports 1.8V but the board itself has no way to switch to
     1.8V.
   - More work on switching to 1.8V UHS support using a vqmmc regulator.
   - Fix up a case where the slot-gpio helper may fail to reset the host
     controller properly if a card was removed during a transfer.
   - Fix several cases where a broken device could cause an infinite
     loop while we wait for a register to update.

  Drivers:
   - at91-mci: Remove obsolete driver, atmel-mci handles these devices
     now.
   - sdhci-dove: Allow using GPIOs for card-detect notifications.
   - sdhci-esdhc: Fix for recovering from ADMA errors on broken silicon.
   - sdhci-s3c: Add pinctrl support.
   - wmt-sdmmc: New driver for WonderMedia SD/MMC controllers."

* tag 'mmc-updates-for-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (65 commits)
  mmc: sdhci: implement the .card_event() method
  mmc: extend the slot-gpio card-detection to use host's .card_event() method
  mmc: add a card-event host operation
  mmc: sdhci-s3c: Fix compilation warning
  mmc: sdhci-pci: Enable SDHCI_CAN_DO_HISPD for Ricoh SDHCI controller
  mmc: sdhci-dove: allow GPIOs to be used for card detection on Dove
  mmc: sdhci-dove: use two-stage initialization for sdhci-pltfm
  mmc: sdhci-dove: use devm_clk_get()
  mmc: eSDHC: Recover from ADMA errors
  mmc: dw_mmc: remove duplicated buswidth code
  mmc: dw_mmc: relocate where dw_mci_setup_bus() is called from
  mmc: Limit MMC speed to 52MHz if not HS200
  mmc: dw_mmc: use devres functions in dw_mmc
  mmc: sh_mmcif: remove unneeded clock connection ID
  mmc: sh_mobile_sdhi: remove unneeded clock connection ID
  mmc: sh_mobile_sdhi: fix clock frequency printing
  mmc: Remove redundant null check before kfree in bus.c
  mmc: Remove redundant null check before kfree in sdio_bus.c
  mmc: sdhci-imx-esdhc: use more devm_* functions
  mmc: dt: add no-1-8-v device tree flag
  ...
This commit is contained in:
Linus Torvalds 2012-12-11 11:19:09 -08:00
commit 11b84c5857
52 changed files with 1781 additions and 1722 deletions

View file

@ -21,6 +21,12 @@ Optional properties:
- cd-inverted: when present, polarity on the cd gpio line is inverted
- wp-inverted: when present, polarity on the wp gpio line is inverted
- max-frequency: maximum operating clock frequency
- no-1-8-v: when present, denotes that 1.8v card voltage is not supported on
this system, even if the controller claims it is.
Optional SDIO properties:
- keep-power-in-suspend: Preserves card power during a suspend/resume cycle
- enable-sdio-wakeup: Enables wake up of host system on SDIO IRQ assertion
Example:
@ -33,4 +39,6 @@ sdhci@ab000000 {
cd-inverted;
wp-gpios = <&gpio 70 0>;
max-frequency = <50000000>;
keep-power-in-suspend;
enable-sdio-wakeup;
}

View file

@ -12,10 +12,6 @@ is used. The Samsung's SDHCI controller bindings extends this as listed below.
[A] The property "samsung,cd-pinmux-gpio" can be used as stated in the
"Optional Board Specific Properties" section below.
[B] If core card-detect bindings and "samsung,cd-pinmux-gpio" property
is not specified, it is assumed that there is no card detection
mechanism used.
Required SoC Specific Properties:
- compatible: should be one of the following
- "samsung,s3c6410-sdhci": For controllers compatible with s3c6410 sdhci
@ -24,14 +20,18 @@ Required SoC Specific Properties:
controller.
Required Board Specific Properties:
- gpios: Should specify the gpios used for clock, command and data lines. The
gpio specifier format depends on the gpio controller.
- Samsung GPIO variant (will be completely replaced by pinctrl):
- gpios: Should specify the gpios used for clock, command and data lines. The
gpio specifier format depends on the gpio controller.
- Pinctrl variant (preferred if available):
- pinctrl-0: Should specify pin control groups used for this controller.
- pinctrl-names: Should contain only one value - "default".
Optional Board Specific Properties:
- samsung,cd-pinmux-gpio: Specifies the card detect line that is routed
through a pinmux to the card-detect pin of the card slot. This property
should be used only if none of the mmc core card-detect properties are
used.
used. Only for Samsung GPIO variant.
Example:
sdhci@12530000 {
@ -40,12 +40,18 @@ Example:
interrupts = <0 75 0>;
bus-width = <4>;
cd-gpios = <&gpk2 2 2 3 3>;
/* Samsung GPIO variant */
gpios = <&gpk2 0 2 0 3>, /* clock line */
<&gpk2 1 2 0 3>, /* command line */
<&gpk2 3 2 3 3>, /* data line 0 */
<&gpk2 4 2 3 3>, /* data line 1 */
<&gpk2 5 2 3 3>, /* data line 2 */
<&gpk2 6 2 3 3>; /* data line 3 */
/* Pinctrl variant */
pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus4>;
pinctrl-names = "default";
};
Note: This example shows both SoC specific and board specific properties

View file

@ -19,6 +19,7 @@ ti,dual-volt: boolean, supports dual voltage cards
"supply-name" examples are "vmmc", "vmmc_aux" etc
ti,non-removable: non-removable slot (like eMMC)
ti,needs-special-reset: Requires a special softreset sequence
ti,needs-special-hs-handling: HSMMC IP needs special setting for handling High Speed
Example:
mmc1: mmc@0x4809c000 {

View file

@ -0,0 +1,23 @@
* Wondermedia WM8505/WM8650 SD/MMC Host Controller
This file documents differences between the core properties described
by mmc.txt and the properties used by the wmt-sdmmc driver.
Required properties:
- compatible: Should be "wm,wm8505-sdhc".
- interrupts: Two interrupts are required - regular irq and dma irq.
Optional properties:
- sdon-inverted: SD_ON bit is inverted on the controller
Examples:
sdhc@d800a000 {
compatible = "wm,wm8505-sdhc";
reg = <0xd800a000 0x1000>;
interrupts = <20 21>;
clocks = <&sdhc>;
bus-width = <4>;
sdon-inverted;
};