P1020wlan REV D DTS file?

[John Clark]

Thanks for the patch. Since my board is the WLAN board, there are some differences, but you fixes confirm that I'm somewhat on the right track.

With my patched up WLAN DTS file, I get to the point of probing the TSEC devices. My board has etsec2 'network' devices, and 'simplistically' replacing etsec2 with 'gianfar' doesn't seem to work.
By replacing the 'etsec2' compatible descriptor, the probe process goes on to attempt find out how much memory to allocate for accessing the device, but I think there's a 'reg' declaration that is missing.

The question I have is, are you using the network interface 'tsec' or have you modified the DTS in that regard? The 'tsec' driver I have does not seem to detect the etsec2 type network device.

Thanks,
John Clark.


On Jul 30, 2013, at 2:41 AM, Aleksander <aleek at FreeBSD.org> wrote:

> That reminds me, I need to send the patch, because I had the same problem.
> In the meantime, here is the patch for p1020rdb.dts. This works for me.
> 
> diff --git a/sys/boot/fdt/dts/p1020rdb.dts b/sys/boot/fdt/dts/p1020rdb.dts
> index ec5118c..c95ab27 100644
> --- a/sys/boot/fdt/dts/p1020rdb.dts
> +++ b/sys/boot/fdt/dts/p1020rdb.dts
> @@ -59,17 +59,20 @@
>                         device_type = "cpu";
>                         reg = <0x0>;
>                         next-level-cache = <&L2>;
> +                       bus-frequency = <400000000>;            // Filled out by uboot.
>                 };
>  
>                 PowerPC,P1020 at 1 {
>                         device_type = "cpu";
>                         reg = <0x1>;
>                         next-level-cache = <&L2>;
> +                       bus-frequency = <400000000>;            // Filled out by uboot.
>                 };
>         };
>  
>         memory {
>                 device_type = "memory";
> +               reg = < 0x0 0x0 0x0 0x20000000 >;
>         };
>  
>         localbus at ffe05000 {
> @@ -193,7 +196,7 @@
>                 #address-cells = <1>;
>                 #size-cells = <1>;
>                 device_type = "soc";
> -               compatible = "fsl,p1020-immr", "simple-bus";
> +               compatible = "simple-bus";
>                 ranges = <0x0  0x0 0xffe00000 0x100000>;
>                 bus-frequency = <0>;            // Filled out by uboot.
>  
> @@ -624,4 +627,9 @@
>                                   0x0 0x100000>;
>                 };
>         };
> +
> +       chosen {
> +               stdin = "serial0";
> +               stdout= "serial0";
> +       };
>  };
> 
> regards
> aleek
> 
> 
> On Mon, Jul 29, 2013 at 9:53 PM, John Clark <jeclark2006 at aim.com> wrote:
> I've been working intermittently on a p1020wlan board and getting FreeBSD up and running on it.
> 
> I have a working Linux setup, but wanted to look at FreeBSD.
> 
> The process has been fraught with problems.
> 
> 1) U-Boot. The board has u-boot and despite the 'suggestive' tool titled 'ubldr', this does not seem to work, unless the u-boot has been 'enabled' with the U-boot API.
>    Did that but other than some number of diagnostics, the ubldr fails to present a command interface or seemingly try to 'bootp' via the network interface.
> 
> 2) Using a DTS file that 'works' with Linux, there are a number of 'holes' in the DTS structure which the boot firmware seems to be expected to 'fill in the blanks'.
>    I've plugged many holes, an rearranged elements in the 'tree' that seem to allow for the kernel to be loaded, and get to the point of attempting to initialize the network drivers to
>    perform a 'bootp' NFS style root mount.
> 
> I did get some assistance in April from someone working on a similar board, but those 'hints' have not yielded a bootable setup.
> 
> It would appear that this board, and perhaps most of the P1020 (and other recent Freescale boards) do not have many people, if any, working on getting FreeBSD up on them.
> 
> The questions are…
> 
> 1) is there anyone with a working P1020Wlan setup?
> 2) Anyone with working P1020xxx boards, and using the 'as found in sys/boot/fdt/dts' DTS files?
> 
> 
> Any help would be appreciated,
> 
> John Clark.
> 
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> 
> 
> -- 
> regards
> aleek