[U-Boot] [PATCH 0/7] libfdt: Update to resync with dtc/libfdt

Jerry Van Baren gvb.uboot at gmail.com
Thu Aug 21 03:45:04 CEST 2008

gvb.uboot at gmail.com wrote:
> The following changesets resynchronize u-boot with the master libfdt.
> Best regards,
> gvb

First results using aliases with David's libfdt improvements...

These are the aliases:

=> fdt p /aliases
aliases {
         ethernet0 = "/qe at e0100000/ucc at 2000";
         ethernet1 = "/qe at e0100000/ucc at 3000";
         serial0 = "/soc8360 at e0000000/serial at 4500";
         serial1 = "/soc8360 at e0000000/serial at 4600";
         pci0 = "/pci at e0008500";

Dereference an alias by not using the '/' prefix per OF conventions:

=> fdt print ethernet0
ucc at 2000 {
         device_type = "network";
         compatible = "ucc_geth";
         cell-index = <0x1>;
         reg = <0x2000 0x200>;
         interrupts = <0x20>;
         interrupt-parent = <0x2>;
         local-mac-address = [00 00 00 00 00 00];
         rx-clock-name = "none";
         tx-clock-name = "clk9";
         phy-handle = <0x3>;
         phy-connection-type = "rgmii-id";
         pio-handle = <0x4>;


Dereference the ethernet0 alias and print a property:

=> fdt print ethernet0/phy-connection-type
libfdt fdt_path_offset() returned FDT_ERR_NOTFOUND

Doh doh doh!  :-)  Pretty close, though.  I'll have to dig into this a 
bit more to see why the alias expansion doesn't seem to work with 
properties, check how it behaves with nested nodes (maybe).

I've rebased u-boot-fdt against u-boot and pushed David's (and other's) 
libfdt improvements to u-boot-fdt.  This is *NOT* ready to be merged 
into the mainline, but I've made it available in case others want to 
play with it.

Warning: I will be rebasing u-boot-fdt as Wolfgang merges more changes 
into the mainline.  I have not seen problems with rebasing, but YMMV.

Best regards,

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