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libfdt: Update to resync with dtc/libfdt

Jerry Van Baren u-boot 1 version New

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  1. v1 Latest0 of 7 patches 0 repliesNew

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Cover letter [U-Boot] [PATCH 0/7] libfdt: Update to resync with dtc/libfdt
Quoted 39 lines · David Gibson
Quoted 38 lines · Jerry Van Baren
Quoted 4 lines · gvb.uboot at gmail.com

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>;
};

Whooo-heeee!

Quoted 7 lines
Quoted 4 lines

Dereference the ethernet0 alias and print a property:

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

Uh... didn't I talk you out of this broken path-to-property stuff way back when?

Dang, you are quick. I just realized that myself. The alias dereference *IS* working as expected.

As you point out, the proper syntax is path <space> property:
=> fdt print ethernet0 phy-connection-type device_type = "network"

which works just fine.

Thanks!
gvb

Read the cover letter in its thread