On Wednesday 10 October 2007, Josh Boyer wrote:
> On Mon, 2007-10-08 at 11:10 +0200, Stefan Roese wrote:
> > Signed-off-by: Stefan Roese <[EMAIL PROTECTED]>
>
> Looks pretty good. Just a couple of questions.
>
> > ---
> > arch/powerpc/boot/dts/kilauea.dts | 253
> > +++++++++++++++++++++++++++++++++++++ 1 files changed, 253 insertions(+),
> > 0 deletions(-)
> > create mode 100644 arch/powerpc/boot/dts/kilauea.dts
> >
> > diff --git a/arch/powerpc/boot/dts/kilauea.dts
> > b/arch/powerpc/boot/dts/kilauea.dts new file mode 100644
> > index 0000000..4683174
> > --- /dev/null
> > +++ b/arch/powerpc/boot/dts/kilauea.dts
> > @@ -0,0 +1,253 @@
> > +/*
> > + * Device Tree Source for AMCC Kilauea (405EX)
> > + *
> > + * Copyright 2007 DENX Software Engineering, Stefan Roese <[EMAIL
> > PROTECTED]>
> > + *
> > + * This file is licensed under the terms of the GNU General Public
> > + * License version 2. This program is licensed "as is" without
> > + * any warranty of any kind, whether express or implied.
> > + */
> > +
> > +/ {
> > + #address-cells = <1>;
> > + #size-cells = <1>;
> > + model = "amcc,kilauea";
> > + compatible = "amcc,kilauea";
> > + dcr-parent = <&/cpus/PowerPC,[EMAIL PROTECTED]>;
> > +
> > + cpus {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + PowerPC,[EMAIL PROTECTED] {
> > + device_type = "cpu";
> > + reg = <0>;
> > + clock-frequency = <0>; /* Filled in by U-Boot */
>
> Filled in by U-Boot itself? Or by a cuboot wrapper? (which I can't find
> in the patches.)
By U-Boot itself. I have a U-Boot patch in the queue to add device tree
support for 4xx. Therefor I don't plan adding a cuboot wrapper for Kilauea.
> > + timebase-frequency = <0>; /* Filled in by U-Boot */
> > + i-cache-line-size = <20>;
> > + d-cache-line-size = <20>;
> > + i-cache-size = <4000>; /* 16 kB */
> > + d-cache-size = <4000>; /* 16 kB */
> > + dcr-controller;
> > + dcr-access-method = "native";
> > + };
> > + };
> > +
> > + memory {
> > + device_type = "memory";
> > + reg = <0 0>; /* Filled in by U-Boot */
> > + };
> > +
> > + UIC0: interrupt-controller {
> > + compatible = "ibm,uic-405ex", "ibm,uic";
> > + interrupt-controller;
> > + cell-index = <0>;
> > + dcr-reg = <0c0 009>;
> > + #address-cells = <0>;
> > + #size-cells = <0>;
> > + #interrupt-cells = <2>;
> > + };
> > +
> > + UIC1: interrupt-controller1 {
> > + compatible = "ibm,uic-405ex","ibm,uic";
> > + interrupt-controller;
> > + cell-index = <1>;
> > + dcr-reg = <0d0 009>;
> > + #address-cells = <0>;
> > + #size-cells = <0>;
> > + #interrupt-cells = <2>;
> > + interrupts = <1e 4 1f 4>; /* cascade */
> > + interrupt-parent = <&UIC0>;
> > + };
> > +
> > + UIC2: interrupt-controller2 {
> > + compatible = "ibm,uic-405ex","ibm,uic";
> > + interrupt-controller;
> > + cell-index = <2>;
> > + dcr-reg = <0e0 009>;
> > + #address-cells = <0>;
> > + #size-cells = <0>;
> > + #interrupt-cells = <2>;
> > + interrupts = <1c 4 1d 4>; /* cascade */
> > + interrupt-parent = <&UIC0>;
> > + };
> > +
> > + plb {
> > + compatible = "ibm,plb-405ex", "ibm,plb4";
> > + #address-cells = <1>;
> > + #size-cells = <1>;
> > + ranges;
> > + clock-frequency = <0>; /* Filled in by U-Boot */
> > +
> > + SDRAM0: memory-controller {
> > + compatible = "ibm,sdram-405ex";
> > + dcr-reg = <010 2>;
> > + };
> > +
> > + MAL0: mcmal {
> > + compatible = "ibm,mcmal-405ex", "ibm,mcmal2";
> > + dcr-reg = <180 62>;
> > + num-tx-chans = <2>;
> > + num-rx-chans = <2>;
> > + interrupt-parent = <&MAL0>;
> > + interrupts = <0 1 2 3 4>;
> > + #interrupt-cells = <1>;
> > + #address-cells = <0>;
> > + #size-cells = <0>;
> > + interrupt-map = </*TXEOB*/ 0 &UIC0 a 4
> > + /*RXEOB*/ 1 &UIC0 b 4
> > + /*SERR*/ 2 &UIC1 0 4
> > + /*TXDE*/ 3 &UIC1 1 4
> > + /*RXDE*/ 4 &UIC1 2 4>;
> > + interrupt-map-mask = <ffffffff>;
> > + };
> > +
> > + POB0: opb {
> > + compatible = "ibm,opb-405ex", "ibm,opb";
> > + #address-cells = <1>;
> > + #size-cells = <1>;
> > + ranges = <ef600000 ef600000 a00000>;
> > + dcr-reg = <0a0 5>;
> > + clock-frequency = <0>; /* Filled in by U-Boot */
> > +
> > + EBC0: ebc {
> > + compatible = "ibm,ebc-405ex", "ibm,ebc";
> > + dcr-reg = <012 2>;
> > + #address-cells = <2>;
> > + #size-cells = <1>;
> > + clock-frequency = <0>; /* Filled in by U-Boot */
> > + interrupts = <5 1>;
>
> This interrupt is really rising edge? Just double checking.
Yes, it is rising edge. I have to admit though, that I'm not sure if this
interrupt will ever be used at all.
> > + interrupt-parent = <&UIC1>;
> > +
> > + [EMAIL PROTECTED],0 {
>
> You have no ranges property for the ebc parent node. Is if filled in by
> U-Boot? If so, please add a comment because otherwise I don't see how
> this mapping will work.
Yes, it's filled in by U-Boot too. I'll add a comment here.
> > + compatible = "amd,s29gl256n",
> > "cfi-flash";
> > + bank-width = <2>;
> > + reg = <0 000000 4000000>;
> > + #address-cells = <1>;
> > + #size-cells = <1>;
> > + [EMAIL PROTECTED] {
> > + label = "Kernel";
> > + reg = <0 180000>;
> > + };
> > + [EMAIL PROTECTED] {
> > + label = "ramdisk";
> > + reg = <180000 200000>;
> > + };
> > + [EMAIL PROTECTED] {
> > + label = "file system";
> > + reg = <380000 3aa0000>;
> > + };
> > + [EMAIL PROTECTED] {
> > + label = "kozio";
> > + reg = <3e20000 140000>;
> > + };
> > + [EMAIL PROTECTED] {
> > + label = "env";
> > + reg = <3f60000 40000>;
> > + };
> > + [EMAIL PROTECTED] {
> > + label = "u-boot";
> > + reg = <3fa0000 60000>;
> > + };
> > + };
> > + };
> > +
> > + UART0: [EMAIL PROTECTED] {
> > + device_type = "serial";
> > + compatible = "ns16550";
> > + reg = <ef600200 8>;
> > + virtual-reg = <ef600200>;
> > + clock-frequency = <0>; /* Filled in by U-Boot */
> > + current-speed = <0>;
> > + interrupt-parent = <&UIC0>;
> > + interrupts = <1a 4>;
> > + };
> > +
> > + UART1: [EMAIL PROTECTED] {
> > + device_type = "serial";
> > + compatible = "ns16550";
> > + reg = <ef600300 8>;
> > + virtual-reg = <ef600300>;
> > + clock-frequency = <0>; /* Filled in by U-Boot */
> > + current-speed = <0>;
> > + interrupt-parent = <&UIC0>;
> > + interrupts = <1 4>;
> > + };
> > +
> > + IIC0: [EMAIL PROTECTED] {
> > + device_type = "i2c";
> > + compatible = "ibm,iic-405ex", "ibm,iic";
> > + reg = <ef600400 14>;
> > + interrupt-parent = <&UIC0>;
> > + interrupts = <2 4>;
> > + };
> > +
> > + IIC1: [EMAIL PROTECTED] {
> > + device_type = "i2c";
> > + compatible = "ibm,iic-405ex", "ibm,iic";
> > + reg = <ef600500 14>;
> > + interrupt-parent = <&UIC0>;
> > + interrupts = <7 4>;
> > + };
> > +
> > +
> > + RGMII0: [EMAIL PROTECTED] {
> > + device_type = "rgmii-interface";
> > + compatible = "ibm,rgmii-405ex", "ibm,rgmii";
> > + reg = <ef600b00 104>;
> > + };
> > +
> > + EMAC0: [EMAIL PROTECTED] {
> > + linux,network-index = <0>;
> > + device_type = "network";
> > + compatible = "ibm,emac-405ex", "ibm,emac4";
> > + interrupt-parent = <&EMAC0>;
> > + interrupts = <0 1>;
> > + #interrupt-cells = <1>;
> > + #address-cells = <0>;
> > + #size-cells = <0>;
> > + interrupt-map = </*Status*/ 0 &UIC0 18 4
> > + /*Wake*/ 1 &UIC1 1d 4>;
> > + reg = <ef600900 70>;
> > + local-mac-address = [000000000000];
>
> Does U-Boot (or the wrapper) poke these values as well?
Yes, I'll add a comment here too.
> > + mal-device = <&MAL0>;
> > + mal-tx-channel = <0>;
> > + mal-rx-channel = <0>;
> > + cell-index = <0>;
> > + max-frame-size = <5dc>;
> > + rx-fifo-size = <1000>;
> > + tx-fifo-size = <800>;
> > + phy-mode = "rgmii";
> > + phy-map = <00000000>;
> > + rgmii-device = <&RGMII0>;
> > + rgmii-channel = <0>;
> > + };
> > +
> > + EMAC1: [EMAIL PROTECTED] {
> > + linux,network-index = <1>;
> > + device_type = "network";
> > + compatible = "ibm,emac-405ex", "ibm,emac4";
> > + interrupt-parent = <&EMAC1>;
> > + interrupts = <0 1>;
> > + #interrupt-cells = <1>;
> > + #address-cells = <0>;
> > + #size-cells = <0>;
> > + interrupt-map = </*Status*/ 0 &UIC0 19 4
> > + /*Wake*/ 1 &UIC1 1f 4>;
> > + reg = <ef600a00 70>;
> > + local-mac-address = [000000000000];
> > + mal-device = <&MAL0>;
> > + mal-tx-channel = <1>;
> > + mal-rx-channel = <1>;
> > + cell-index = <1>;
> > + max-frame-size = <5dc>;
> > + rx-fifo-size = <1000>;
> > + tx-fifo-size = <800>;
> > + phy-mode = "rgmii";
> > + phy-map = <00000000>;
> > + rgmii-device = <&RGMII0>;
> > + rgmii-channel = <1>;
> > + };
> > + };
> > + };
>
> No chosen node?
No. U-Boot will provide all needed information here.
Thanks.
Best regards,
Stefan
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