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\ *****************************************************************************
\ * Copyright (c) 2004, 2008 IBM Corporation
\ * All rights reserved.
\ * This program and the accompanying materials
\ * are made available under the terms of the BSD License
\ * which accompanies this distribution, and is available at
\ * http://www.opensource.org/licenses/bsd-license.php
\ *
\ * Contributors:
\ * IBM Corporation - initial implementation
\ ****************************************************************************/
s" obp-tftp" device-name
INSTANCE VARIABLE ciregs-buffer
: open ( -- okay? )
ciregs-size alloc-mem ciregs-buffer !
true
;
: load ( addr -- size )
\ Save old client interface register
ciregs ciregs-buffer @ ciregs-size move
s" bootargs" get-chosen 0= IF 0 0 THEN >r >r
s" bootpath" get-chosen 0= IF 0 0 THEN >r >r
\ Set bootpath to current device
my-parent ihandle>phandle node>path encode-string
s" bootpath" set-chosen
\ Generate arg string for snk like
\ "netboot load-addr length filename"
(u.) s" netboot " 2swap $cat s" 60000000 " $cat
\ Allocate 1720 bytes to store the BOOTP-REPLY packet
6B8 alloc-mem dup >r (u.) $cat s" " $cat
huge-tftp-load @ IF s" 1 " ELSE s" 0 " THEN $cat
\ Add desired TFTP-Blocksize as additional argument
s" 1432 " $cat
\ Add OBP-TFTP Bootstring argument, e.g. "10.128.0.1,bootrom.bin,10.128.40.1"
my-args $cat
\ Call SNK netboot loadr
(client-exec) dup 0< IF drop 0 THEN
\ Restore to old client interface register
ciregs-buffer @ ciregs ciregs-size move
\ Recover buffer address of BOOTP-REPLY packet
r>
r> r> over IF s" bootpath" set-chosen ELSE 2drop THEN
r> r> over IF s" bootargs" set-chosen ELSE 2drop THEN
\ Store BOOTP-REPLY packet as property
dup 6B8 encode-bytes s" bootp-response" s" /chosen" find-node set-property
\ free buffer
6B8 free-mem
;
: close ( -- )
ciregs-buffer @ ciregs-size free-mem
;
: ping ( -- )
s" ping " my-args $cat (client-exec)
;
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