On Fri, Dec 11, 2020 at 12:58:00PM +0100, Alexandre Belloni wrote:
> On 11/12/2020 11:50:55+0000, Sudeep Holla wrote:
> > On Fri, Dec 11, 2020 at 12:45:15PM +0100, Alexandre Belloni wrote:
> > > Hello,
> > >
> > > On 11/12/2020 10:31:43+0000, Sudeep Holla wrote:
> > > > Since at91_soc_init is called unconditionally from
> > > > atmel_soc_device_init,
> > > > we get the following warning on all non AT91 SoCs:
> > > > " AT91: Could not find identification node"
> > > >
> > > > Fix the same by filtering with allowed AT91 SoC list.
> > > >
> > > > Cc: Nicolas Ferre <nicolas.fe...@microchip.com>
> > > > Cc: Alexandre Belloni <alexandre.bell...@bootlin.com>
> > > > Cc: Ludovic Desroches <ludovic.desroc...@microchip.com>
> > > > Signed-off-by: Sudeep Holla <sudeep.ho...@arm.com>
> > > > ---
> > > > drivers/soc/atmel/soc.c | 11 +++++++++++
> > > > 1 file changed, 11 insertions(+)
> > > >
> > > > diff --git a/drivers/soc/atmel/soc.c b/drivers/soc/atmel/soc.c
> > > > index c4472b68b7c2..ba9fc07cd91c 100644
> > > > --- a/drivers/soc/atmel/soc.c
> > > > +++ b/drivers/soc/atmel/soc.c
> > > > @@ -271,8 +271,19 @@ struct soc_device * __init at91_soc_init(const
> > > > struct at91_soc *socs)
> > > > return soc_dev;
> > > > }
> > > >
> > > > +static const struct of_device_id at91_soc_allowed_list[] __initconst =
> > > > {
> > > > + { .compatible = "atmel,at91rm9200", },
> > > > + { .compatible = "atmel,at91sam9260", },
> > > > + { .compatible = "atmel,sama5d2", },
> > >
> > > This is a very small subset of the supported SoCs. a proper list would
> > > be:
> > >
> > > atmel,at91rm9200
> > > atmel,at91sam9
> > > atmel,sama5
> > > atmel,samv7
> > >
> >
> > Sure I can update it but the existing functions
> > at91_get_cidr_exid_from_chipid
> > and at91_get_cidr_exid_from_dbgu check for following 3 compatibles and bail
> > out if not found:
> > "atmel,at91rm9200-dbgu"
> > "atmel,at91sam9260-dbgu"
> > "atmel,sama5d2-chipid"
> >
> > Quick check on DTS upstream suggested only 3 platforms, hence the choice.
> >
>
> No, atmel,at91sam9260-dbgu is used on most platforms:
> $ git grep atmel,at91sam9260-dbgu arch/arm/boot/dts/
> arch/arm/boot/dts/at91sam9260.dtsi: compatible =
> "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
> arch/arm/boot/dts/at91sam9261.dtsi: compatible =
> "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
> arch/arm/boot/dts/at91sam9263.dtsi: compatible =
> "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
> arch/arm/boot/dts/at91sam9g45.dtsi: compatible =
> "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
> arch/arm/boot/dts/at91sam9n12.dtsi: compatible =
> "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
> arch/arm/boot/dts/at91sam9rl.dtsi: compatible =
> "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
> arch/arm/boot/dts/at91sam9x5.dtsi: compatible =
> "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
> arch/arm/boot/dts/sam9x60.dtsi: compatible =
> "microchip,sam9x60-dbgu", "microchip,sam9x60-usart",
> "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
> arch/arm/boot/dts/sama5d3.dtsi: compatible =
> "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
> arch/arm/boot/dts/sama5d4.dtsi: compatible =
> "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart";
>
Ah, I must have messed up my grep then for sure. Also not familiar with
AT91 series of platforms. I will respin with the list you suggested. Thanks!
--
Regards,
Sudeep
