Hi Paul, Paul Cercueil <paul@xxxxxxxxxxxxxxx> wrote on Mon, 04 Mar 2019 19:23:50 +0100: > On Mon, Mar 4, 2019 at 10:50 AM, Miquel Raynal <miquel.raynal@xxxxxxxxxxx> wrote: > > Hi Paul, > > > > Paul Cercueil <paul@xxxxxxxxxxxxxxx <mailto:paul@xxxxxxxxxxxxxxx>> > wrote on Sat, 9 Feb 2019 16:22:58 > > -0300: > > > >> The JZ4740 ECC hardware is not BCH but Reed-Solomon, so it makes >> more > >> sense to use the more generic ECC term. > >> >> Signed-off-by: Paul Cercueil <paul@xxxxxxxxxxxxxxx >> <mailto:paul@xxxxxxxxxxxxxxx>> > >> --- > >> >> Changes: > >> >> v3: New patch > >> >> v4: No change > >> >> .../devicetree/bindings/mtd/ingenic,jz4780-nand.txt | 18 >> +++++++++--------- > >> 1 file changed, 9 insertions(+), 9 deletions(-) > >> >> diff --git >> a/Documentation/devicetree/bindings/mtd/ingenic,jz4780-nand.txt >> b/Documentation/devicetree/bindings/mtd/ingenic,jz4780-nand.txt > >> index a5b940f18bf6..5a45cc54f46d 100644 > >> --- a/Documentation/devicetree/bindings/mtd/ingenic,jz4780-nand.txt > >> +++ b/Documentation/devicetree/bindings/mtd/ingenic,jz4780-nand.txt > >> @@ -1,4 +1,4 @@ > >> -* Ingenic JZ4780 NAND/BCH > >> +* Ingenic JZ4780 NAND/ECC > >> >> This file documents the device tree bindings for NAND flash >> devices on the > >> JZ4780. NAND devices are connected to the NEMC controller >> (described in > >> @@ -14,10 +14,10 @@ Required NAND controller device properties: > >> an offset of 0 and a size of 0x1000000 (i.e. the whole NEMC >> bank). > >> >> Optional NAND controller device properties: > >> -- ingenic,bch-controller: To make use of the hardware BCH >> controller, this > >> - property must contain a phandle for the BCH controller node. The >> required > >> +- ingenic,bch-controller: To make use of the hardware ECC >> controller, this > >> + property must contain a phandle for the ECC controller node. The >> required > > > > I think there is already a 'ecc-engine' property used by MTK and Atmel > > NAND controllers to point to the ECC engine block. Please use this > > property instead of the ingenic specific one. > > ingenic,bch-controller is already in the devicetree ABI. I can't change it now... Oh, right... Well, same thing as before, maybe you can change it and keep the driver backward compatible? I don't want new DT to use this property because it is not generic and we must have a way from the core to find the ECC engine handle when the controller does not embed one itself (thus, the ecc-engine property which is around for quite some time already). Thanks, Miquèl
