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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
\ ****************************************************************************/
\ we do all flash accesses as 8-bit
ff000000 CONSTANT flash-addr
: >flash flash-addr + ;
: flash@ >flash rb@ ;
: flash! >flash rb! ;
: wait-for-flash-ready BEGIN 0 flash@ 80 and UNTIL ;
: erase-flash-block ( offset -- )
cr dup 8 .r ." Erasing..."
20 over flash! d0 swap flash! wait-for-flash-ready ;
: write-flash ( data offset -- )
40 over flash! flash! wait-for-flash-ready ;
: write-flash-buffer ( addr offset -- )
e8 over flash! wait-for-flash-ready 1f over flash!
20 0 DO over i + c@ over i + flash! LOOP
d0 over flash! wait-for-flash-ready 2drop ;
: write-flash-block ( addr offset -- ) \ always writes 128kB!
." Writing..."
20000 0 DO over i + over i + write-flash-buffer 20 +LOOP 2drop
." Done." ;
: flash ( addr offset size -- )
BEGIN dup 0 > WHILE >r dup erase-flash-block 2dup write-flash-block
>r 20000 + r> 20000 + r> 20000 - REPEAT drop 2drop -1 0 flash! ;
: flash-it load-base 0 e0000 flash ;
: flash4 load-base 0 400000 flash ;
\ for update-flash
: flash-image-size ( addr -- size ) 30 + rx@ ;
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