[U-Boot] [PATCH 8/8] riscv: dts: Support four cores SMP

Rick Chen rickchen36 at gmail.com
Thu Oct 31 05:57:38 UTC 2019


Hi Bin

>
> Hi Rick,
>
> On Fri, Oct 25, 2019 at 2:18 PM Andes <uboot at andestech.com> wrote:
> >
> > From: Rick Chen <rick at andestech.com>
> >
> > Add CPU2 and CPU3 informations in cpus node
>
> nits: information

OK

>
> > to support four cores SMP booting.
> >
> > Signed-off-by: Rick Chen <rick at andestech.com>
> > Cc: KC Lin <kclin at andestech.com>
> > Cc: Alan Kao <alankao at andestech.com>
> > ---
> >  arch/riscv/dts/ae350_32.dts | 51 ++++++++++++++++++++++++++++++++++++++++++---
> >  arch/riscv/dts/ae350_64.dts | 51 ++++++++++++++++++++++++++++++++++++++++++---
> >  2 files changed, 96 insertions(+), 6 deletions(-)
> >
> > diff --git a/arch/riscv/dts/ae350_32.dts b/arch/riscv/dts/ae350_32.dts
> > index 97b7cee..c794a7f 100644
> > --- a/arch/riscv/dts/ae350_32.dts
> > +++ b/arch/riscv/dts/ae350_32.dts
> > @@ -62,6 +62,48 @@
> >                                 compatible = "riscv,cpu-intc";
> >                         };
> >                 };
> > +               CPU2: cpu at 2 {
> > +                       device_type = "cpu";
> > +                       reg = <2>;
> > +                       status = "okay";
> > +                       compatible = "riscv";
> > +                       riscv,isa = "rv32imafdc";
> > +                       riscv,priv-major = <1>;
> > +                       riscv,priv-minor = <10>;
> > +                       mmu-type = "riscv,sv32";
> > +                       clock-frequency = <60000000>;
> > +                       i-cache-size = <0x8000>;
> > +                       i-cache-line-size = <32>;
> > +                       d-cache-size = <0x8000>;
> > +                       d-cache-line-size = <32>;
> > +                       next-level-cache = <&L2>;
> > +                       CPU2_intc: interrupt-controller {
> > +                               #interrupt-cells = <1>;
> > +                               interrupt-controller;
> > +                               compatible = "riscv,cpu-intc";
> > +                       };
> > +               };
> > +               CPU3: cpu at 3 {
> > +                       device_type = "cpu";
> > +                       reg = <3>;
> > +                       status = "okay";
> > +                       compatible = "riscv";
> > +                       riscv,isa = "rv32imafdc";
> > +                       riscv,priv-major = <1>;
> > +                       riscv,priv-minor = <10>;
> > +                       mmu-type = "riscv,sv32";
> > +                       clock-frequency = <60000000>;
> > +                       i-cache-size = <0x8000>;
> > +                       i-cache-line-size = <32>;
> > +                       d-cache-size = <0x8000>;
> > +                       d-cache-line-size = <32>;
> > +                       next-level-cache = <&L2>;
> > +                       CPU3_intc: interrupt-controller {
> > +                               #interrupt-cells = <1>;
> > +                               interrupt-controller;
> > +                               compatible = "riscv,cpu-intc";
> > +                       };
> > +               };
> >         };
> >
> >         L2: l2-cache at e0500000 {
> > @@ -94,7 +136,8 @@
> >                         interrupt-controller;
> >                         reg = <0xe4000000 0x2000000>;
> >                         riscv,ndev=<71>;
> > -                       interrupts-extended = <&CPU0_intc 11 &CPU0_intc 9 &CPU1_intc 11 &CPU1_intc 9>;
> > +                       interrupts-extended = <&CPU0_intc 11 &CPU0_intc 9 &CPU1_intc 11 &CPU1_intc 9
> > +                                                                                                               &CPU2_intc 11 &CPU2_intc 9 &CPU3_intc 11 &CPU3_intc 9>;
>
> The indentation looks wrong.

OK. I will fix it.

Thanks
Rick

>
> >                 };
> >
> >                 plic1: interrupt-controller at e6400000 {
> > @@ -104,12 +147,14 @@
> >                         interrupt-controller;
> >                         reg = <0xe6400000 0x400000>;
> >                         riscv,ndev=<2>;
> > -                       interrupts-extended = <&CPU0_intc 3 &CPU1_intc 3>;
> > +                       interrupts-extended = <&CPU0_intc 3 &CPU1_intc 3
> > +                                                                                                               &CPU2_intc 3 &CPU3_intc 3>;
> >                 };
> >
> >                 plmt0 at e6000000 {
> >                         compatible = "riscv,plmt0";
> > -                       interrupts-extended = <&CPU0_intc 7 &CPU1_intc 7>;
> > +                       interrupts-extended = <&CPU0_intc 7 &CPU1_intc 7
> > +                                                                                                               &CPU2_intc 7 &CPU3_intc 7>;
> >                         reg = <0xe6000000 0x100000>;
> >                 };
> >         };
>
> [snip]
>
> Regards,
> Bin


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