cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

gpio-74xx-mmio.txt (1032B)


      1* 74XX MMIO GPIO driver
      2
      3Required properties:
      4- compatible: Should contain one of the following:
      5   "ti,741g125": for 741G125 (1-bit Input),
      6   "ti,741g174": for 741G74 (1-bit Output),
      7   "ti,742g125": for 742G125 (2-bit Input),
      8   "ti,7474"   : for 7474 (2-bit Output),
      9   "ti,74125"  : for 74125 (4-bit Input),
     10   "ti,74175"  : for 74175 (4-bit Output),
     11   "ti,74365"  : for 74365 (6-bit Input),
     12   "ti,74174"  : for 74174 (6-bit Output),
     13   "ti,74244"  : for 74244 (8-bit Input),
     14   "ti,74273"  : for 74273 (8-bit Output),
     15   "ti,741624" : for 741624 (16-bit Input),
     16   "ti,7416374": for 7416374 (16-bit Output).
     17- reg: Physical base address and length where IC resides.
     18- gpio-controller: Marks the device node as a gpio controller.
     19- #gpio-cells: Should be two. The first cell is the pin number and
     20   the second cell is used to specify the GPIO polarity:
     21    0 = Active High,
     22    1 = Active Low.
     23
     24Example:
     25	ctrl: gpio@30008004 {
     26		compatible = "ti,74174";
     27		reg = <0x30008004 0x1>;
     28		gpio-controller;
     29		#gpio-cells = <2>;
     30	};