mirror of https://github.com/mgcaret/of816.git
98 lines
2.1 KiB
Forth
98 lines
2.1 KiB
Forth
\ *****************************************************************************
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\ * Copyright (c) 2004, 2008 IBM Corporation
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\ * All rights reserved.
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\ * This program and the accompanying materials
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\ * are made available under the terms of the BSD License
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\ * which accompanies this distribution, and is available at
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\ * http://www.opensource.org/licenses/bsd-license.php
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\ *
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\ * Contributors:
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\ * IBM Corporation - initial implementation
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\ ****************************************************************************/
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db" OF root device node (c) IBM"
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\ this creates the root and common branches of the device tree
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defer (client-exec)
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defer client-exec
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\ defined in slof/fs/client.fs
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defer callback
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defer continue-client
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0 VALUE chosen-node
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: chosen
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chosen-node dup 0= IF
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drop s" /chosen" find-node dup to chosen-node
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THEN
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;
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: set-chosen ( prop len name len -- )
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chosen set-property ;
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: get-chosen ( name len -- [ prop len ] success )
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chosen get-property 0= ;
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\ Do not assume that cpu0 is available
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VARIABLE chosen-cpu-ihandle
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: set-chosen-cpu ( -- )
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s" /cpus" find-node dup 0= ABORT" /cpus not found"
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child dup 0= ABORT" /cpus/cpu not found"
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0 0 rot open-node
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dup chosen-cpu-ihandle ! encode-int s" cpu" set-chosen
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;
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: chosen-cpu-unit ( -- ret ) chosen-cpu-ihandle @ ihandle>phandle >unit ;
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\ Look for an exising root, create one if needed
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" /" find-node dup 0= IF
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drop
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new-device
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s" /" device-name
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ELSE
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extend-device
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THEN
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\ Create /chosen if it doesn't exist
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" /chosen" find-node dup 0= IF
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drop
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new-device
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s" chosen" device-name
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s" " encode-string s" bootargs" property
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s" " encode-string s" bootpath" property
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finish-device
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ELSE
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drop
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THEN
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\ Create /aliases
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new-device
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s" aliases" device-name
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: open true ;
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: close ;
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finish-device
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\ Create /options
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new-device
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s" options" device-name
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finish-device
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\ Create /openprom
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new-device
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s" openprom" device-name
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0 0 s" relative-addressing" property
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finish-device
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\ Create /packages
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new-device
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#include <of/packages.fs>
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finish-device
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: open true ;
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: close ;
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\ Finish root
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finish-device
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