diff options
Diffstat (limited to 'qemu/roms/SLOF/board-js2x/slof/u4-mem.fs')
| -rw-r--r-- | qemu/roms/SLOF/board-js2x/slof/u4-mem.fs | 313 |
1 files changed, 0 insertions, 313 deletions
diff --git a/qemu/roms/SLOF/board-js2x/slof/u4-mem.fs b/qemu/roms/SLOF/board-js2x/slof/u4-mem.fs deleted file mode 100644 index 0f8b1eef6..000000000 --- a/qemu/roms/SLOF/board-js2x/slof/u4-mem.fs +++ /dev/null @@ -1,313 +0,0 @@ -\ ***************************************************************************** -\ * 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 -\ ****************************************************************************/ - - -\ U4 DDR2 memory controller. - -cr .( Setting up memory controller...) - - -\ First, I2C access to the SPDs. - -: >i2c f8001000 + ; -: i2c@ >i2c rl@ ; -: i2c! >i2c rl! ; - -: .i2c 80 0 DO i i2c@ . 10 +LOOP ; - -: i2c-addr ( addr -- ) 50 i2c! 2 10 i2c! BEGIN 30 i2c@ 2 and UNTIL ; -: i2c-addr-subaddr ( addr suba -- ) 60 i2c! i2c-addr ; -: i2c-stop ( -- ) BEGIN 30 i2c@ dup 30 i2c! 4 and UNTIL ; -: i2c-nak? ( -- failed? ) 20 i2c@ 2 and 0= dup IF i2c-stop THEN ; -: i2c-short? ( -- failed? ) 30 i2c@ 4 and 0<> dup IF 0 10 i2c! i2c-stop THEN ; -: i2c-aak-if-more ( n -- ) 1 <> 1 and 10 i2c! ; - -: i2c-sub-read ( buf len addr suba -- error? ) - c 0 i2c! >r 1 or r> i2c-addr-subaddr i2c-nak? IF 2drop true EXIT THEN - dup i2c-aak-if-more 2 30 i2c! - BEGIN - 30 i2c@ 1 and IF - 1- >r 70 i2c@ over c! char+ r> - dup 0= IF i2c-stop 2drop false EXIT THEN - dup i2c-aak-if-more 1 30 i2c! THEN - i2c-short? IF 2drop true EXIT THEN - AGAIN ; - - -\ What slots are filled with working memory (bitmask). - -f VALUE dimms-valid -: dimm-invalid 1 swap lshift invert dimms-valid and to dimms-valid ; -: dimm-invalid dup dimm-invalid 2 xor dimm-invalid ; \ DIMMs are paired -: dimm-valid? 1 swap lshift dimms-valid and ; -: dimm( +comp postpone 4 postpone 0 postpone DO - postpone i postpone dimm-valid? postpone IF ; immediate -: )dimm postpone THEN postpone LOOP -comp ; immediate - - -\ The data from the SPDs. - -CREATE spds 100 allot -: spd@ ( dimm# off -- value ) swap 40 * + spds + c@ ; - -CREATE addresses a0 c, a4 c, a2 c, a6 c, -dimm( spds i 40 * + 40 addresses i + c@ 0 i2c-sub-read IF i dimm-invalid THEN )dimm - - -\ Accessors. - -: spd>rows 3 spd@ ; -: spd>cols 4 spd@ ; -: spd>ranks 5 spd@ 7 and 1+ ; -: spd>width d spd@ ; -: spd>banks 11 spd@ ; -: spd>cas 12 spd@ ; \ bit mask of allowable CAS latencies -: spd>trp 1b spd@ ; \ in units of 0.25 ns -: spd>trrd 1c spd@ ; \ in units of 0.25 ns -: spd>trcd 1d spd@ ; \ in units of 0.25 ns -: spd>tras 1e spd@ ; \ in units of 1 ns -: spd>twr 24 spd@ ; \ in units of 0.25 ns -: spd>twtr 25 spd@ ; \ in units of 0.25 ns -: spd>trtp 26 spd@ ; \ in units of 0.25 ns -: spd>trc 29 spd@ ; \ in units of 1 ns XXX: should also look at byte 28 -: spd>trfc 2a spd@ ; \ in units of 1 ns XXX: should also look at byte 28 - -cr .( rows cols ranks width banks trp trrd trcd tras twr twtr trtp trc trfc) -cr .( =====================================================================) -decimal -dimm( cr -i spd>rows 4 .r i spd>cols 5 .r i spd>ranks 6 .r i spd>width 6 .r -i spd>banks 6 .r i spd>trp 4 .r i spd>trrd 5 .r i spd>trcd 5 .r -i spd>tras 5 .r i spd>twr 4 .r i spd>twtr 5 .r i spd>trtp 5 .r -i spd>trc 4 .r i spd>trfc 5 .r -)dimm -hex - -ff dimm( i spd>cas and )dimm CONSTANT cl-supported -: max-cl -1 swap 8 0 DO dup 1 and IF nip i swap THEN u2/ LOOP drop ; -cl-supported max-cl VALUE cl - -: tck>60*ns dup f and swap 4 rshift a * over + 6 * swap CASE - a OF 2d - ENDOF b OF 2e - ENDOF c OF 20 - ENDOF d OF 21 - ENDOF - ENDCASE ; -: cl>tck 0 spd>cas max-cl swap - - CASE 0 OF 9 ENDOF 1 OF 17 ENDOF 2 OF 19 ENDOF - true ABORT" No supported CAS latency for this DIMM" ENDCASE - 0 swap spd@ tck>60*ns ; - -: spd>min-tck dup spd>cas max-cl cl - - CASE 0 OF 9 ENDOF 1 OF 17 ENDOF 2 OF 19 ENDOF - true ABORT" No supported CAS latency for this DIMM" ENDCASE - spd@ tck>60*ns ; -: spd>max-tck 2b spd@ tck>60*ns ; - -: .tck base @ >r decimal dup d# 60 / 0 .r [char] . emit - d# 60 mod d# 1000 * d# 60 / 3 0.r ." ns" r> base ! ; - -cr .( CAS latencies supported: ) -8 0 DO cl-supported 1 i lshift and IF i . THEN LOOP - -\ Find the lowest CL at the highest tCK. -8 0 DO cl-supported 1 i lshift and IF cl cl>tck i cl>tck = IF - i to cl LEAVE THEN THEN LOOP - -.( -- using ) cl . - - -0 dimm( i spd>min-tck max )dimm CONSTANT tck -dimm( i spd>max-tck tck < IF i dimm-invalid THEN )dimm -cr .( tCK is ) tck .tck - - -0 CONSTANT al -cl al + CONSTANT rl -rl 1- CONSTANT wl - -: // dup >r 1- + r> / ; \ round up -0 spd>tras d# 60 * tck // CONSTANT tras -0 spd>trtp d# 15 * tck // CONSTANT trtp -0 spd>twr d# 15 * tck // CONSTANT twr -0 spd>trp d# 15 * tck // CONSTANT trp -0 spd>trrd d# 15 * tck // CONSTANT trrd -0 spd>trrd d# 60 * tck // CONSTANT 4*trrd -0 spd>trcd d# 15 * tck // CONSTANT trcd -0 spd>trc d# 60 * tck // CONSTANT trc -0 spd>twtr d# 15 * tck // CONSTANT twtr - -: spd>memmd - >r r@ spd>rows r@ spd>cols + - r@ spd>banks 2log + 4 * r> spd>width 2log 3 * + 6c - ; -: dimm-group-size ( dimm# -- size ) - >r r@ spd>rows r@ spd>cols + 1 swap lshift - r@ spd>banks * r> spd>ranks * 10 * ; -VARIABLE start-address -VARIABLE was-prev-big -: assign-dimm-group ( dimm# -- config-value ) - dup dimm-valid? 0= IF drop 0 EXIT THEN - \ MemMd, enable, single-sided or not - dup spd>memmd c lshift 1 or over spd>ranks 1 = IF 2 or THEN -cr ." ---> " dup . ->r - dimm-group-size start-address @ 2dup + rot ( start end size ) - 80000000 > IF - dup 1000000000 < IF dup 4 rshift ELSE 08000000 THEN r> or >r \ Add2G - over 0<> IF over c rshift ELSE 00080000 THEN r> or >r \ Sub2G - was-prev-big on - ELSE - was-prev-big @ IF 80000000 + swap 80000000 + swap THEN r> 08080000 or >r - was-prev-big off - THEN - swap 18 rshift r> or >r \ start address - dup 80000000 = IF drop 100000000 THEN start-address ! r> ; - - -\ Now set the frequency in the memory controller -d# 1800 tck / 4 - 12 lshift 33c or f8000800 rl! -f8000860 rl@ 80000000 or f8000860 rl! 10000 0 DO LOOP - -: mc! f8002000 + rl! ; -: mc@ f8002000 + rl@ ; - - -\ memory timing regs (state machine) - -tras 2- -5 lshift al trtp + 2- or -5 lshift wl twr + or -5 lshift trp 2- or -5 lshift trp 2- 0 spd>banks 8 = IF 1+ THEN or -7 lshift 030 mc! - -al trtp + trp + 2- -5 lshift cl al + twr + trp + 1- or -5 lshift trrd 2- or -5 lshift trc 2- or -5 lshift trcd 2- or -5 lshift 4*trrd or -2 lshift 040 mc! - -0 -5 lshift 1 or -5 lshift 1 or -5 lshift cl 1- twtr + or -5 lshift 1 or -5 lshift 1 or -2 lshift 050 mc! - -0 -5 lshift 1 or -5 lshift 1 or -5 lshift 2 or -5 lshift 2 or -5 lshift 2 or -2 lshift 060 mc! \ XXX joerg has different setting - -cl 3 = IF 30801800 ( 30800d00 ) 070 mc! \ XXX memory refresh -ELSE 41002000 070 mc! THEN - -\ memory size regs - -1 dimm-group-size 0 dimm-group-size > 1 0 rot IF swap THEN \ biggest first -assign-dimm-group 200 mc! -assign-dimm-group 210 mc! -0 220 mc! 0 230 mc! - - - - - -\ arbiter tunables -\ 40041040 270 mc! -04041040 270 mc! -50000000 280 mc! -\ a0a00000 290 mc! \ a0000000 might be faster -00000000 290 mc! -\ 20020820 2a0 mc! -04020822 2a0 mc! -00000000 2b0 mc! -\ 30413cc7 2c0 mc! \ have to calculate the low five bits -30413dc5 2c0 mc! -\ cl 3 = IF 76000050 2d0 mc! 70000000 2e0 mc! ELSE -cl 3 = IF 75000050 2d0 mc! 70000000 2e0 mc! ELSE - b8002080 2d0 mc! b0000000 2e0 mc! THEN -\ Should test for something else really - - - -cl 3 = IF 00006000 890 mc! 00006000 8a0 mc! ELSE - 00006500 890 mc! 00006500 8a0 mc! THEN - -cl 3 = IF 1e008a8a ELSE 31000000 THEN -dup 800 mc! dup 810 mc! dup 820 mc! dup 830 mc! -dup 900 mc! dup 910 mc! dup 920 mc! dup 930 mc! dup 980 mc! -dup a00 mc! dup a10 mc! dup a20 mc! dup a30 mc! -dup b00 mc! dup b10 mc! dup b20 mc! dup b30 mc! b80 mc! - -\ 0 8d0 mc! 0 9d0 mc! 0 ad0 mc! 0 bd0 mc! -61630000 8d0 mc! -61630000 9d0 mc! -52510000 ad0 mc! -434e0000 bd0 mc! - -a0200400 100 mc! -80020000 110 mc! -80030000 120 mc! -80010404 130 mc! -cl 3 = IF -8000153a 140 mc! ELSE -8000174a 140 mc! THEN -a0200400 150 mc! -\ 92000000 160 mc! -\ 92000000 170 mc! -\ 91300000 160 mc! -\ 91300000 170 mc! -91800000 160 mc! -91800000 170 mc! -cl 3 = IF -8ff0143a 180 mc! ELSE -8ff0164a 180 mc! THEN -80010784 190 mc! -80010404 1a0 mc! -0 1b0 mc! 0 1c0 mc! 0 1d0 mc! 0 1e0 mc! 0 1f0 mc! - -cl 3 = IF -143a 0c0 mc! ELSE -164a 0c0 mc! THEN -0404 0d0 mc! - -\ after this point, setup is common for all speeds and sizes of dimms (sort of) - -60000000 3a0 mc! - -0 840 mc! 0 850 mc! 0 860 mc! 0 870 mc! -0 940 mc! 0 950 mc! 0 960 mc! 0 970 mc! 0 990 mc! -0 a40 mc! 0 a50 mc! 0 a60 mc! 0 a70 mc! -0 b40 mc! 0 b50 mc! 0 b60 mc! 0 b70 mc! 0 b90 mc! - -0 880 mc! - -001a4000 9a0 mc! - -84800000 500 mc! - -10000 0 DO LOOP - -80000000 b0 mc! BEGIN b0 mc@ 40000000 and UNTIL - -0 300 mc! 0 310 mc! - -80000000 440 mc! -0 410 mc! 27fffffc 420 mc! -fedcba98 430 mc! -c0000000 400 mc! BEGIN 400 mc@ c0000000 and 0= UNTIL - -cr .( mem done) |