[PATCH 3/5] fu540: dtsi: add reset producer and consumer entries

Bin Meng bmeng.cn at gmail.com
Wed Jun 24 07:01:21 CEST 2020


Hi Sean,

On Wed, Jun 24, 2020 at 12:17 PM Sean Anderson <seanga2 at gmail.com> wrote:
>
> On 6/22/20 8:27 AM, Sagar Shrikant Kadam wrote:
> > The resets to DDR and ethernet sub-system are connected to
> > PRCI device reset control register, these reset signals
> > are active low and are held low at power-up. Add these reset
> > producer and consumer details needed by the reset driver.
> >
> > Signed-off-by: Sagar Shrikant Kadam <sagar.kadam at sifive.com>
> > Reviewed-by: Pragnesh Patel <Pragnesh.patel at sifive.com>
> > ---
> >  arch/riscv/dts/fu540-c000-u-boot.dtsi | 10 ++++++++++
> >  1 file changed, 10 insertions(+)
> >
> > diff --git a/arch/riscv/dts/fu540-c000-u-boot.dtsi b/arch/riscv/dts/fu540-c000-u-boot.dtsi
> > index 9bba554..b37241e 100644
> > --- a/arch/riscv/dts/fu540-c000-u-boot.dtsi
> > +++ b/arch/riscv/dts/fu540-c000-u-boot.dtsi
> > @@ -59,6 +59,16 @@
> >                       reg = <0x0 0x2000000 0x0 0xc0000>;
> >                       u-boot,dm-spl;
> >               };
> > +             prci: clock-controller at 10000000 {
>
> Shouldn't this have a compatible property?

This is the U-Boot specific dts fragment. See fu540-c000.dtsi

>
> > +                     #reset-cells = <1>;
> > +                     resets = <&prci PRCI_RST_DDR_CTRL_N>,
> > +                              <&prci PRCI_RST_DDR_AXI_N>,
> > +                              <&prci PRCI_RST_DDR_AHB_N>,
> > +                              <&prci PRCI_RST_DDR_PHY_N>,
> > +                              <&prci PRCI_RST_GEMGXL_N>;
> > +                     reset-names = "ddr_ctrl", "ddr_axi", "ddr_ahb",
> > +                                     "ddr_phy", "gemgxl_reset";
> > +             };
> >               dmc: dmc at 100b0000 {
> >                       compatible = "sifive,fu540-c000-ddr";
> >                       reg = <0x0 0x100b0000 0x0 0x0800

Regards,
Bin


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