Re: [PATCH 2/5] nvmem: sunxi-sid: add support for H5's SID controller

[Frank Lee]

HI Maxime and ChenYu,

On Mon, Feb 18, 2019 at 4:49 PM Maxime Ripard <maxime.ripard@xxxxxxxxxxx> wrote:
>
> On Sun, Feb 17, 2019 at 11:23:13AM -0500, Yangtao Li wrote:
> > Add support for H5's SID controller.
> >
> > Signed-off-by: Yangtao Li <tiny.windzz@xxxxxxxxx>
> > ---
> >  drivers/nvmem/sunxi_sid.c | 6 ++++++
> >  1 file changed, 6 insertions(+)
> >
> > diff --git a/drivers/nvmem/sunxi_sid.c b/drivers/nvmem/sunxi_sid.c
> > index 570a2e354f30..036029e90921 100644
> > --- a/drivers/nvmem/sunxi_sid.c
> > +++ b/drivers/nvmem/sunxi_sid.c
> > @@ -219,11 +219,17 @@ static const struct sunxi_sid_cfg sun50i_a64_cfg = {
> >       .size = 0x100,
> >  };
> >
> > +static const struct sunxi_sid_cfg sun50i_h5_cfg = {
> > +     .value_offset = 0x200,
> > +     .size = 0x100,
> > +};
>
> IIRC, there was an endianness issue on the newer SoCs, with the driver
> converting the data from big endian to little endian, while it's
> actually stored little endian in the SID.
>
> Have you checked the SID content?
It seems that data by hexdump /sys/bus/nvmem/devices/sunxi_sid/nvmem or
by md command in uboot , the data is different in some soc.

Sorry, I replied a bit late.
Any suggestions to solve it?

Yangtao
>
> Maxime
>
> --
> Maxime Ripard, Bootlin
> Embedded Linux and Kernel engineering
> https://bootlin.com