summaryrefslogtreecommitdiff
path: root/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
diff options
context:
space:
mode:
authorMauro Carvalho Chehab <mchehab@s-opensource.com>2017-09-29 12:24:10 +0300
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2017-09-29 12:24:10 +0300
commitcf09e3c904bf424f8b6a8203958e09bf7d9bcbc0 (patch)
tree5e9936b3de36aa222b52a9bca366a43d98730ffd /Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
parentd5426f4c2ebac8cf05de43988c3fccddbee13d28 (diff)
parente19b205be43d11bff638cad4487008c48d21c103 (diff)
downloadlinux-cf09e3c904bf424f8b6a8203958e09bf7d9bcbc0.tar.xz
Merge tag 'v4.14-rc2' into patchwork
Linux 4.14-rc2 * tag 'v4.14-rc2': (12066 commits) Linux 4.14-rc2 tpm: ibmvtpm: simplify crq initialization and document crq format tpm: replace msleep() with usleep_range() in TPM 1.2/2.0 generic drivers Documentation: tpm: add powered-while-suspended binding documentation tpm: tpm_crb: constify acpi_device_id. tpm: vtpm: constify vio_device_id security: fix description of values returned by cap_inode_need_killpriv x86/asm: Fix inline asm call constraints for Clang objtool: Handle another GCC stack pointer adjustment bug inet: fix improper empty comparison net: use inet6_rcv_saddr to compare sockets net: set tb->fast_sk_family net: orphan frags on stand-alone ptype in dev_queue_xmit_nit MAINTAINERS: update git tree locations for ieee802154 subsystem SMB3: Don't ignore O_SYNC/O_DSYNC and O_DIRECT flags SMB3: handle new statx fields arch: remove unused *_segments() macros/functions parisc: Unbreak bootloader due to gcc-7 optimizations parisc: Reintroduce option to gzip-compress the kernel apparmor: fix apparmorfs DAC access permissions ...
Diffstat (limited to 'Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt')
-rw-r--r--Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt52
1 files changed, 37 insertions, 15 deletions
diff --git a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
index 0e026c151c1c..3a4ac401e6f9 100644
--- a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
+++ b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
@@ -1,33 +1,55 @@
-* TI Highspeed MMC host controller for OMAP
+* TI Highspeed MMC host controller for OMAP and 66AK2G family.
-The Highspeed MMC Host Controller on TI OMAP family
+The Highspeed MMC Host Controller on TI OMAP and 66AK2G 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,omap3-pre-es3-hsmmc" for OMAP3 controllers pre ES3.0
Should be "ti,omap4-hsmmc", for OMAP4 controllers
Should be "ti,am33xx-hsmmc", for AM335x controllers
-- ti,hwmods: Must be "mmc<n>", n is controller instance starting 1
+ Should be "ti,k2g-hsmmc", "ti,omap4-hsmmc" for 66AK2G controllers.
+
+SoC specific required properties:
+---------------------------------
+The following are mandatory properties for OMAPs, AM33xx and AM43xx SoCs only:
+- ti,hwmods: Must be "mmc<n>", n is controller instance starting 1.
+
+The following are mandatory properties for 66AK2G SoCs only:
+- power-domains:Should contain a phandle to a PM domain provider node
+ and an args specifier containing the MMC device id
+ value. This property is as per the binding,
+ Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt
+- clocks: Must contain an entry for each entry in clock-names. Should
+ be defined as per the he appropriate clock bindings consumer
+ usage in Documentation/devicetree/bindings/clock/ti,sci-clk.txt
+- clock-names: Shall be "fck" for the functional clock,
+ and "mmchsdb_fck" for the debounce clock.
+
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"(deprecated)/"vqmmc" 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
-dmas: List of DMA specifiers with the controller specific format
-as described in the generic DMA client binding. A tx and rx
-specifier is required.
-dma-names: List of DMA request names. These strings correspond
-1:1 with the DMA specifiers listed in dmas. The string naming is
-to be "rx" and "tx" for RX and TX DMA requests, respectively.
+--------------------
+- 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"(deprecated)/"vqmmc" 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
+- dmas: List of DMA specifiers with the controller specific
+ format as described in the generic DMA client
+ binding. A tx and rx specifier is required.
+- dma-names: List of DMA request names. These strings correspond
+ 1:1 with the DMA specifiers listed in dmas.
+ The string naming is to be "rx" and "tx" for
+ RX and TX DMA requests, respectively.
Examples: