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| author |   Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
|---|---|---|
| committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
| commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
| tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/Documentation/devicetree/bindings/misc/at25.txt | |
| parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) | |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/Documentation/devicetree/bindings/misc/at25.txt')
| -rw-r--r-- | kernel/Documentation/devicetree/bindings/misc/at25.txt | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/kernel/Documentation/devicetree/bindings/misc/at25.txt b/kernel/Documentation/devicetree/bindings/misc/at25.txt new file mode 100644 index 000000000..1d3447165 --- /dev/null +++ b/kernel/Documentation/devicetree/bindings/misc/at25.txt @@ -0,0 +1,35 @@ +EEPROMs (SPI) compatible with Atmel at25. + +Required properties: +- compatible : "atmel,at25". +- reg : chip select number +- spi-max-frequency : max spi frequency to use +- pagesize : size of the eeprom page +- size : total eeprom size in bytes +- address-width : number of address bits (one of 8, 16, or 24) + +Optional properties: +- spi-cpha : SPI shifted clock phase, as per spi-bus bindings. +- spi-cpol : SPI inverse clock polarity, as per spi-bus bindings. +- read-only : this parameter-less property disables writes to the eeprom + +Obsolete legacy properties are can be used in place of "size", "pagesize", +"address-width", and "read-only": +- at25,byte-len : total eeprom size in bytes +- at25,addr-mode : addr-mode flags, as defined in include/linux/spi/eeprom.h +- at25,page-size : size of the eeprom page + +Additional compatible properties are also allowed. + +Example: + at25@0 { + compatible = "atmel,at25", "st,m95256"; + reg = <0> + spi-max-frequency = <5000000>; + spi-cpha; + spi-cpol; + + pagesize = <64>; + size = <32768>; + address-width = <16>; + }; |