1 \ *****************************************************************************
2 \ * Copyright (c) 2004, 2008 IBM Corporation
3 \ * All rights reserved.
4 \ * This program and the accompanying materials
5 \ * are made available under the terms of the BSD License
6 \ * which accompanies this distribution, and is available at
7 \ * http://www.opensource.org/licenses/bsd-license.php
10 \ * IBM Corporation - initial implementation
11 \ ****************************************************************************/
14 \ we do all flash accesses as 8-bit
16 9f000000 CONSTANT citrine-flash-addr
18 : >citrine-flash citrine-flash-addr + ;
19 : citrine-flash@ >citrine-flash rb@ ;
20 : citrine-flash! >citrine-flash rb! ;
21 : wait-for-citrine-flash-ready BEGIN 0 citrine-flash@ 80 and UNTIL ;
22 : erase-citrine-flash-block ( offset -- )
23 cr dup 8 .r ." Erasing..."
24 20 over citrine-flash! d0 swap citrine-flash! wait-for-citrine-flash-ready ;
25 : write-citrine-flash ( data offset -- )
26 over ff = IF 2drop EXIT THEN
27 40 over citrine-flash! citrine-flash! wait-for-citrine-flash-ready ;
28 : write-citrine-flash-block ( addr offset -- ) \ always writes 128kB!
30 20000 0 DO over i + c@ over i + write-citrine-flash LOOP 2drop
32 : citrine-flash ( addr offset size -- )
33 BEGIN dup 0 > WHILE >r dup erase-citrine-flash-block
34 2dup write-citrine-flash-block >r 20000 + r> 20000 + r> 20000 - REPEAT
35 drop 2drop -1 0 citrine-flash! ;