| Message ID | 1581922600-25461-3-git-send-email-masonccyang@mxic.com.tw |
|---|---|
| State | Accepted |
| Headers | show |
| Series | mtd: rawnand: Add support for Macronix NAND randomizer | expand |
On Mon, 2020-02-17 at 06:56:40 UTC, Mason Yang wrote: > Document the bindings used by the Macronix NAND device. > > Signed-off-by: Mason Yang <masonccyang@mxic.com.tw> > Reviewed-by: Rob Herring <robh@kernel.org> Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next, thanks. Miquel
Hi Mason, Mason Yang <masonccyang@mxic.com.tw> wrote on Mon, 17 Feb 2020 14:56:40 +0800: > Document the bindings used by the Macronix NAND device. > > Signed-off-by: Mason Yang <masonccyang@mxic.com.tw> > Reviewed-by: Rob Herring <robh@kernel.org> > --- > .../devicetree/bindings/mtd/nand-macronix.txt | 28 ++++++++++++++++++++++ > 1 file changed, 28 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mtd/nand-macronix.txt > > diff --git a/Documentation/devicetree/bindings/mtd/nand-macronix.txt b/Documentation/devicetree/bindings/mtd/nand-macronix.txt > new file mode 100644 > index 0000000..1d7a895 > --- /dev/null > +++ b/Documentation/devicetree/bindings/mtd/nand-macronix.txt > @@ -0,0 +1,28 @@ > +Macronix NANDs Device Tree Bindings > +----------------------------------- > + > +Macronix NANDs support randomizer operation for user data scrambled, > +which can be enabled with a SET_FEATURE. The penalty of randomizer are > +subpage accesses prohibited and more time period is needed in program > +operation, i.e., tPROG 300us to 340us(randomizer enabled). > +Randomizer enabled is a one time persistent and non reversible operatoin. > + > +For more high-reliability concern, if subpage write not available with > +hardware ECC and filesystem and then to enable randomizer is recommended > +by default. > + > +By adding a new specific property in children nodes to enable > +randomizer function. I also reworded slightly this text when applying. Thanks, Miquèl
Hi Miquel, > Mason Yang <masonccyang@mxic.com.tw> wrote on Mon, 17 Feb 2020 14:56:40 > +0800: > > > Document the bindings used by the Macronix NAND device. > > > > Signed-off-by: Mason Yang <masonccyang@mxic.com.tw> > > Reviewed-by: Rob Herring <robh@kernel.org> > > --- > > .../devicetree/bindings/mtd/nand-macronix.txt | 28 ++++++++++++++++++++++ > > 1 file changed, 28 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/mtd/nand-macronix.txt > > > > diff --git a/Documentation/devicetree/bindings/mtd/nand-macronix.txt b/ > Documentation/devicetree/bindings/mtd/nand-macronix.txt > > new file mode 100644 > > index 0000000..1d7a895 > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/mtd/nand-macronix.txt > > @@ -0,0 +1,28 @@ > > +Macronix NANDs Device Tree Bindings > > +----------------------------------- > > + > > +Macronix NANDs support randomizer operation for user data scrambled, > > +which can be enabled with a SET_FEATURE. The penalty of randomizer are > > +subpage accesses prohibited and more time period is needed in program > > +operation, i.e., tPROG 300us to 340us(randomizer enabled). > > +Randomizer enabled is a one time persistent and non reversible operatoin. > > + > > +For more high-reliability concern, if subpage write not available with > > +hardware ECC and filesystem and then to enable randomizer is recommended > > +by default. > > + > > +By adding a new specific property in children nodes to enable > > +randomizer function. > > I also reworded slightly this text when applying. ok,sure. > > > Thanks, > Miquèl thanks for your time & review. Mason CONFIDENTIALITY NOTE: This e-mail and any attachments may contain confidential information and/or personal data, which is protected by applicable laws. Please be reminded that duplication, disclosure, distribution, or use of this e-mail (and/or its attachments) or any part thereof is prohibited. If you receive this e-mail in error, please notify us immediately and delete this mail as well as its attachment(s) from your system. In addition, please be informed that collection, processing, and/or use of personal data is prohibited unless expressly permitted by personal data protection laws. Thank you for your attention and cooperation. Macronix International Co., Ltd. ===================================================================== ============================================================================ CONFIDENTIALITY NOTE: This e-mail and any attachments may contain confidential information and/or personal data, which is protected by applicable laws. Please be reminded that duplication, disclosure, distribution, or use of this e-mail (and/or its attachments) or any part thereof is prohibited. If you receive this e-mail in error, please notify us immediately and delete this mail as well as its attachment(s) from your system. In addition, please be informed that collection, processing, and/or use of personal data is prohibited unless expressly permitted by personal data protection laws. Thank you for your attention and cooperation. Macronix International Co., Ltd. =====================================================================
diff --git a/Documentation/devicetree/bindings/mtd/nand-macronix.txt b/Documentation/devicetree/bindings/mtd/nand-macronix.txt new file mode 100644 index 0000000..1d7a895 --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/nand-macronix.txt @@ -0,0 +1,28 @@ +Macronix NANDs Device Tree Bindings +----------------------------------- + +Macronix NANDs support randomizer operation for user data scrambled, +which can be enabled with a SET_FEATURE. The penalty of randomizer are +subpage accesses prohibited and more time period is needed in program +operation, i.e., tPROG 300us to 340us(randomizer enabled). +Randomizer enabled is a one time persistent and non reversible operatoin. + +For more high-reliability concern, if subpage write not available with +hardware ECC and filesystem and then to enable randomizer is recommended +by default. + +By adding a new specific property in children nodes to enable +randomizer function. + +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; + }; + };