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SubjectRe: [PATCH] arm64: dts: ls1088a: add fsl-mc hardware resource manager node
On Thu, Nov 16, 2017 at 02:24:49PM +0000, Ioana Ciornei wrote:
...
> > > + fsl_mc: fsl-mc@80c000000 {
> >
> > The unit-address of the node should be somehow related to 'reg'
> > property. Can you please help me understand how they are related?
>
> The unit-address of the fsl-mc node is the base address of the MC portal described in the first region of the 'reg' property and formed using the 2 address cells.
> Hope this helps.

Ah, sorry, I forgot that the address-cells is 2.

>
> >
> > > + compatible = "fsl,qoriq-mc";
> > > + reg = <0x00000008 0x0c000000 0 0x40>, /* MC portal base */
> > > + <0x00000000 0x08340000 0 0x40000>; /* MC control reg */
> > > + msi-parent = <&its>;
> > > + #address-cells = <3>;
> > > + #size-cells = <1>;
> > > +
> > > + /*
> > > + * Region type 0x0 - MC portals
> > > + * Region type 0x1 - QBMAN portals
> > > + */
> > > + ranges = <0x0 0x0 0x0 0x8 0x0c000000 0x4000000
> > > + 0x1 0x0 0x0 0x8 0x18000000 0x8000000>;
> > > +
> > > + dpmacs {
> > > + #address-cells = <1>;
> > > + #size-cells = <0>;
> > > +
> > > + dpmac1: dpmac@1 {
> > > + compatible = "fsl,qoriq-mc-dpmac";
> > > + reg = <1>;
> > > + };
> >
> > Please have a newline in between nodes.
>
> Will do.
>
> Should I send a rework of this patch right away or better to wait for the merge window to close?

Either way is fine, as I will rebase my branch to v4.15-rc1 after merge
window closes.

> > > + dpmac2: dpmac@2 {
> > > + compatible = "fsl,qoriq-mc-dpmac";
> > > + reg = <2>;
> > > + };
> > > + dpmac3: dpmac@3 {
> > > + compatible = "fsl,qoriq-mc-dpmac";
> > > + reg = <3>;
> > > + };
> > > + dpmac4: dpmac@4 {
> > > + compatible = "fsl,qoriq-mc-dpmac";
> > > + reg = <4>;
> > > + };
> > > + dpmac5: dpmac@5 {
> > > + compatible = "fsl,qoriq-mc-dpmac";
> > > + reg = <5>;
> > > + };
> > > + dpmac6: dpmac@6 {
> > > + compatible = "fsl,qoriq-mc-dpmac";
> > > + reg = <6>;
> > > + };
> > > + dpmac7: dpmac@7 {
> > > + compatible = "fsl,qoriq-mc-dpmac";
> > > + reg = <7>;
> > > + };
> > > + dpmac8: dpmac@8 {
> > > + compatible = "fsl,qoriq-mc-dpmac";
> > > + reg = <8>;
> > > + };
> > > + dpmac9: dpmac@9 {
> > > + compatible = "fsl,qoriq-mc-dpmac";
> > > + reg = <9>;
> > > + };
> > > + dpmac10: dpmac@10 {

Just noticed this - the unit-address should be hex number, so it should
be dpmac@a rather than dpmac@10, I think.

Shawn

> > > + compatible = "fsl,qoriq-mc-dpmac";
> > > + reg = <0xa>;
> > > + };
> > > + };
> > > + };
> > > +
> > > psci {
> > > compatible = "arm,psci-0.2";
> > > method = "smc";
> > > --
> > > 1.9.1
> > >
> > >
>
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> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

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