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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/mtd/nand-macronix.txt | |
parent | Initial commit. (diff) | |
download | linux-upstream/5.10.209.tar.xz linux-upstream/5.10.209.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | Documentation/devicetree/bindings/mtd/nand-macronix.txt | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mtd/nand-macronix.txt b/Documentation/devicetree/bindings/mtd/nand-macronix.txt new file mode 100644 index 000000000..ffab28a2c --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/nand-macronix.txt @@ -0,0 +1,27 @@ +Macronix NANDs Device Tree Bindings +----------------------------------- + +Macronix NANDs support randomizer operation for scrambling user data, +which can be enabled with a SET_FEATURE. The penalty when using the +randomizer are subpage accesses prohibited and more time period needed +for program operation, i.e., tPROG 300us to 340us (randomizer enabled). +Enabling the randomizer is a one time persistent and non reversible +operation. + +For more high-reliability concern, if subpage write is not available +with hardware ECC and not enabled at UBI level, then enabling the +randomizer is recommended by default by adding a new specific property +in children nodes. + +Required NAND chip properties in children mode: +- randomizer enable: should be "mxic,enable-randomizer-otp" + +Example: + + nand: nand-controller@unit-address { + + nand@0 { + reg = <0>; + mxic,enable-randomizer-otp; + }; + }; |