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

nand-macronix.txt (883B)


      1Macronix NANDs Device Tree Bindings
      2-----------------------------------
      3
      4Macronix NANDs support randomizer operation for scrambling user data,
      5which can be enabled with a SET_FEATURE. The penalty when using the
      6randomizer are subpage accesses prohibited and more time period needed
      7for program operation, i.e., tPROG 300us to 340us (randomizer enabled).
      8Enabling the randomizer is a one time persistent and non reversible
      9operation.
     10
     11For more high-reliability concern, if subpage write is not available
     12with hardware ECC and not enabled at UBI level, then enabling the
     13randomizer is recommended by default by adding a new specific property
     14in children nodes.
     15
     16Required NAND chip properties in children mode:
     17- randomizer enable: should be "mxic,enable-randomizer-otp"
     18
     19Example:
     20
     21	nand: nand-controller@unit-address {
     22
     23		nand@0 {
     24			reg = <0>;
     25			mxic,enable-randomizer-otp;
     26		};
     27	};