[U-Boot] [PATCH] riscv: dts: Sync to Linux Kernel ae350 dts.

Rick Chen rickchen36 at gmail.com
Tue Oct 16 02:35:19 UTC 2018


Bin Meng <bmeng.cn at gmail.com> 於 2018年10月16日 週二 上午9:43寫道:
>
> Hi Rick,
>
> On Tue, Oct 16, 2018 at 9:25 AM Rick Chen <rickchen36 at gmail.com> wrote:
> >
> > Bin Meng <bmeng.cn at gmail.com> 於 2018年10月8日 週一 下午1:49寫道:
> > >
> > > Hi Rick,
> > >
> > > On Mon, Oct 8, 2018 at 1:33 PM Andes <uboot at andestech.com> wrote:
> > > >
> > > > From: Rick Chen <rick at andestech.com>
> > > >
> > > > Use same dts to boot U-Boot and Kernel.
> > > >
> > > > Following are the change notes :
> > > > 1 Remove early printk bootargs.
> > > > 2 Timer frequency are changed to 60MHz.
> > > > 3 Add dma, snd, lcd, virtio nodes which are used
> > > >   in kernel drivers. They does not been used by U-Boot.
> > > > 4 Change spi irq from 3 to 4.
> > > >
> > > > Signed-off-by: Rick Chen <rick at andestech.com>
> > > > Cc: Greentime Hu <greentime at andestech.com>
> > > > ---
> > > >  arch/riscv/dts/ae350.dts | 107 ++++++++++++++++++++++++++++++++++++++++-------
> > > >  1 file changed, 92 insertions(+), 15 deletions(-)
> > > >
> > > > diff --git a/arch/riscv/dts/ae350.dts b/arch/riscv/dts/ae350.dts
> > > > index 4717ae8..e48c298 100644
> > > > --- a/arch/riscv/dts/ae350.dts
> > > > +++ b/arch/riscv/dts/ae350.dts
> > > > @@ -12,15 +12,14 @@
> > > >         };
> > > >
> > > >         chosen {
> > > > -               bootargs = "console=ttyS0,38400n8 earlyprintk=uart8250-32bit,0xf0300000 debug loglevel=7";
> > > > +               bootargs = "console=ttyS0,38400n8  debug loglevel=7";
> > > >                 stdout-path = "uart0:38400n8";
> > > >         };
> > > >
> > > >         cpus {
> > > >                 #address-cells = <1>;
> > > >                 #size-cells = <0>;
> > > > -               timebase-frequency = <10000000>;
> > > > -
> > > > +               timebase-frequency = <60000000>;
> > > >                 CPU0: cpu at 0 {
> > > >                         device_type = "cpu";
> > > >                         reg = <0>;
> > > > @@ -29,7 +28,8 @@
> > > >                         riscv,isa = "rv64imafdc";
> > > >                         mmu-type = "riscv,sv39";
> > > >                         clock-frequency = <60000000>;
> > > > -
> > > > +                       d-cache-size = <0x8000>;
> > > > +                       d-cache-line-size = <32>;
> > > >                         CPU0_intc: interrupt-controller {
> > > >                                 #interrupt-cells = <1>;
> > > >                                 interrupt-controller;
> > > > @@ -48,13 +48,6 @@
> > > >                 #size-cells = <2>;
> > > >                 compatible = "andestech,riscv-ae350-soc";
> > > >                 ranges;
> > > > -       };
> > > > -
> > > > -       plmt0 at e6000000 {
> > > > -               compatible = "riscv,plmt0";
> > > > -               interrupts-extended = <&CPU0_intc 7>;
> > > > -               reg = <0x0 0xe6000000 0x0 0x100000>;
> > > > -       };
> > > >
> > > >         plic0: interrupt-controller at e4000000 {
> > > >                 compatible = "riscv,plic0";
> > > > @@ -62,7 +55,7 @@
> > > >                 #interrupt-cells = <2>;
> > > >                 interrupt-controller;
> > > >                 reg = <0x0 0xe4000000 0x0 0x2000000>;
> > > > -               riscv,ndev=<31>;
> > > > +               riscv,ndev=<71>;
> > > >                 interrupts-extended = <&CPU0_intc 11 &CPU0_intc 9>;
> > > >         };
> > > >
> > > > @@ -76,6 +69,13 @@
> > > >                 interrupts-extended = <&CPU0_intc 3>;
> > > >         };
> > > >
> > > > +       plmt0 at e6000000 {
> > > > +               compatible = "riscv,plmt0";
> > > > +                       interrupts-extended = <&CPU0_intc 7>;
> > > > +                       reg = <0x0 0xe6000000 0x0 0x100000>;
> > > > +               };
> > > > +       };
> > > > +
> > > >         spiclk: virt_100mhz {
> > > >                 #clock-cells = <0>;
> > > >                 compatible = "fixed-clock";
> > > > @@ -85,7 +85,7 @@
> > > >         timer0: timer at f0400000 {
> > > >                 compatible = "andestech,atcpit100";
> > > >                 reg = <0x0 0xf0400000 0x0 0x1000>;
> > > > -               clock-frequency = <40000000>;
> > > > +               clock-frequency = <60000000>;
> > > >                 interrupts = <3 4>;
> > > >                 interrupt-parent = <&plic0>;
> > > >         };
> > > > @@ -119,11 +119,89 @@
> > > >                 interrupt-parent = <&plic0>;
> > > >         };
> > > >
> > > > +       dma0: dma at f0c00000 {
> > > > +               compatible = "andestech,atcdmac300";
> > > > +               reg = <0x0 0xf0c00000 0x0 0x1000>;
> > > > +               interrupts = <10 4 64 4 65 4 66 4 67 4 68 4 69 4 70 4 71 4>;
> > > > +               dma-channels = <8>;
> > > > +               interrupt-parent = <&plic0>;
> > > > +       };
> > > > +
> > > > +       lcd0: lcd at e0200000 {
> > > > +               compatible = "andestech,atflcdc100";
> > > > +               reg = <0x0 0xe0200000 0x0 0x1000>;
> > > > +               interrupts = <20 4>;
> > > > +               interrupt-parent = <&plic0>;
> > > > +       };
> > > > +
> > > >         smc0: smc at e0400000 {
> > > >                 compatible = "andestech,atfsmc020";
> > > >                 reg = <0x0 0xe0400000 0x0 0x1000>;
> > > >         };
> > > >
> > > > +       snd0: snd at f0d00000 {
> > > > +               compatible = "andestech,atfac97";
> > > > +               reg = <0x0 0xf0d00000 0x0 0x1000>;
> > > > +               interrupts = <17 4>;
> > > > +               interrupt-parent = <&plic0>;
> > > > +       };
> > > > +
> > > > +       virtio_mmio at fe007000 {
> > > > +               interrupts = <0x17 0x4>;
> > > > +               interrupt-parent = <0x2>;
> > > > +               reg = <0x0 0xfe007000 0x0 0x1000>;
> > > > +               compatible = "virtio,mmio";
> > > > +       };
> > > > +
> > > > +       virtio_mmio at fe006000 {
> > > > +               interrupts = <0x16 0x4>;
> > > > +               interrupt-parent = <0x2>;
> > > > +               reg = <0x0 0xfe006000 0x0 0x1000>;
> > > > +               compatible = "virtio,mmio";
> > > > +       };
> > > > +
> > > > +       virtio_mmio at fe005000 {
> > > > +               interrupts = <0x15 0x4>;
> > > > +               interrupt-parent = <0x2>;
> > > > +               reg = <0x0 0xfe005000 0x0 0x1000>;
> > > > +               compatible = "virtio,mmio";
> > > > +       };
> > > > +
> > > > +       virtio_mmio at fe004000 {
> > > > +               interrupts = <0x14 0x4>;
> > > > +               interrupt-parent = <0x2>;
> > > > +               reg = <0x0 0xfe004000 0x0 0x1000>;
> > > > +               compatible = "virtio,mmio";
> > > > +       };
> > > > +
> > > > +       virtio_mmio at fe003000 {
> > > > +               interrupts = <0x13 0x4>;
> > > > +               interrupt-parent = <0x2>;
> > > > +               reg = <0x0 0xfe003000 0x0 0x1000>;
> > > > +               compatible = "virtio,mmio";
> > > > +       };
> > > > +
> > > > +       virtio_mmio at fe002000 {
> > > > +               interrupts = <0x12 0x4>;
> > > > +               interrupt-parent = <0x2>;
> > > > +               reg = <0x0 0xfe002000 0x0 0x1000>;
> > > > +               compatible = "virtio,mmio";
> > > > +       };
> > > > +
> > > > +       virtio_mmio at fe001000 {
> > > > +               interrupts = <0x11 0x4>;
> > > > +               interrupt-parent = <0x2>;
> > > > +               reg = <0x0 0xfe001000 0x0 0x1000>;
> > > > +               compatible = "virtio,mmio";
> > > > +       };
> > > > +
> > > > +       virtio_mmio at fe000000 {
> > > > +               interrupts = <0x10 0x4>;
> > > > +               interrupt-parent = <0x2>;
> > > > +               reg = <0x0 0xfe000000 0x0 0x1000>;
> > > > +               compatible = "virtio,mmio";
> > > > +       };
> > > > +
> > >
> > > Do these virtio devices exist on the real hardware?
> >
> > Hi Bin
> >
> > No.
> > These virtio nodes does not exist on the read board.
> > It is required on Andes' QEMU ae350 board.
> >
>
> So it is a special target, which matches some hardware components plus
> some "virtual" components like VirtIO?
>

Yes.

> BTW: where is the Linux AE350 DTS file? I do not see it in the Linux tree.
>

The dts has not been pushed into Linux tree yet.

Rick


> Regards,
> Bin


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