On Raspberry Pi
by Mark Morgan Lloyd
Is it possible to put OpenFirmware on an SD card and use it to boot off
e.g. a USB-attached mass storage device or using TFTP over a LAN?
--
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk
[Opinions above are the author's, not those of his employers or colleagues]
4 years, 6 months
[commit] r3504 - in cpu/arm/olpc: . 4.0
by repository service
Author: quozl
Date: Mon Dec 31 11:43:11 2012
New Revision: 3504
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/3504
Log:
OLPC XO-4 - touchscreen, change to version 0.0.0.9, which caused a few more timing changes, requiring some fixes to the driver.
Modified:
cpu/arm/olpc/4.0/nn-version.fth
cpu/arm/olpc/nn-touchscreen.fth
Modified: cpu/arm/olpc/4.0/nn-version.fth
==============================================================================
--- cpu/arm/olpc/4.0/nn-version.fth Mon Dec 31 07:36:36 2012 (r3503)
+++ cpu/arm/olpc/4.0/nn-version.fth Mon Dec 31 11:43:11 2012 (r3504)
@@ -1,2 +1,2 @@
\ The Neonode touchscreen firmware
-macro: NN_VERSION 0_0_0_8
+macro: NN_VERSION 0_0_0_9
Modified: cpu/arm/olpc/nn-touchscreen.fth
==============================================================================
--- cpu/arm/olpc/nn-touchscreen.fth Mon Dec 31 07:36:36 2012 (r3503)
+++ cpu/arm/olpc/nn-touchscreen.fth Mon Dec 31 11:43:11 2012 (r3504)
@@ -111,7 +111,21 @@
then ( id limit )
dup get-msecs - 0< ( id limit timeout? )
until ( id limit )
- 2drop ( )
+ drop ( id )
+ ." timeout waiting for " 2u.x cr ( )
+ r> rstrace >r
+ pbuf /pbuf erase
+;
+
+: ?id-abort ( id $message -- )
+ rot pbuf 2+ c@ <> if
+ pbuf plen cdump
+ r> rstrace >r
+ cr
+ $abort
+ else
+ 2drop
+ then
;
: ?missing
@@ -120,22 +134,24 @@
: flush-input ( -- )
begin
- 0 0 anticipate
- pbuf 2+ c@ h# 07 = if ?missing then
+ in? if
+ pbuf 2+ c@ h# 07 = if ?missing then
+ then
no-data?
until
;
: read-boot-complete ( -- )
- 0 pbuf 2+ c!
- h# 07 d# 0 anticipate
- pbuf 2+ c@ h# 07 <> abort" response other than boot complete"
- ?missing
+ in? if
+ h# 07 " response other than boot complete" ?id-abort
+ ?missing
+ then
;
+
: read-version
h# 1e h# 01 h# ee 3 bytes-out h# 1e d# 100 anticipate
- pbuf 2+ c@ h# 1e <> abort" response other than status"
+ h# 1e " response other than status" ?id-abort
pbuf 9 + le-w@ pbuf 7 + le-w@ wljoin pbuf 5 + le-w@ pbuf 3 + le-w@ wljoin
to version#
;
@@ -151,12 +167,14 @@
: start ( -- ) h# 04 h# 01 h# ee 3 bytes-out ;
: deactivate ( -- )
- h# 00 h# 01 h# ee 3 bytes-out h# 00 d# 60 anticipate
+ h# 00 h# 01 h# ee 3 bytes-out h# 00 d# 100 anticipate
;
: deconfigure ( -- )
- deactivate
- true to configure?
+ configure? 0= if
+ deactivate
+ true to configure?
+ then
;
: configure ( -- )
@@ -216,7 +234,6 @@
;
: stream-poll? ( -- false | x y buttons true )
- 0 pbuf 2+ c!
in? if
\ FIXME: only handles one subpacket
pbuf 2+ c@ h# 04 = if
@@ -245,7 +262,6 @@
: test-response ( -- )
6 0 do
h# 40 h# 0 h# 0f 3 h# ee 5 bytes-out \ fss full level
- 0 pbuf 2+ c!
h# 0f d# 130 anticipate
pbuf 2+ c@ dup 0= abort" missing response after fixed signal strength"
h# 0f <> abort" response other than fixed signal strength"
@@ -405,8 +421,8 @@
: test-os-axis ( axis -- )
h# 21 h# 02 h# ee 4 bytes-out
- h# 21 d# 60 anticipate
- pbuf 2+ c@ h# 21 <> abort" response other than open short"
+ h# 21 d# 100 anticipate
+ h# 21 " response other than open short" ?id-abort
pbuf d# 5 + ( addr )
@@ -466,7 +482,7 @@
: test-fss-axis ( axis -- )
d# 64 swap h# 0f h# 03 h# ee 5 bytes-out
h# 0f d# 60 anticipate
- pbuf 2+ c@ h# 0f <> abort" response other than fixed signal strength"
+ h# 0f " response other than fixed signal strength" ?id-abort
8sp
push-decimal
pbuf 4 + c@ 0 do ( )
@@ -601,7 +617,7 @@
: test-ls-axis ( axis -- )
h# 0d h# 02 h# ee 4 bytes-out
h# 0d d# 200 anticipate
- pbuf 2+ c@ h# 0d <> abort" response other than low signals"
+ h# 0d " response other than low signals" ?id-abort
8sp
pbuf 5 + ( addr )
@@ -1010,15 +1026,25 @@
;
+: (lg-tooling) test-os test-fll ;
+
: lg-tooling ( -- error? )
- open if test-os test-fll else fault then
+ open if
+ ['] (lg-tooling) catch ?dup if .error fault then
+ else
+ fault
+ then
faults
close
;
: ir-pcb-smt ( -- error? )
hold-reset connect
- open if test-os else fault then
+ open if
+ ['] test-os catch ?dup if .error fault then
+ else
+ fault
+ then
close
hold-reset disconnect
faults
@@ -1027,8 +1053,10 @@
: ir-pcb-assy ( -- error? )
hold-reset connect
open if
- test-fll
- faults 0= if test-adjacent-axes then
+ ['] test-fll catch ?dup if .error fault then
+ faults 0= if
+ ['] test-adjacent-axes catch ?dup if .error fault then
+ then
else
fault
then
@@ -1039,14 +1067,14 @@
: mb-smt ( -- error? )
open 0= if true exit then
- show-version
+ ['] show-version catch ?dup if .error fault then
close
- false
+ faults
;
: mb-assy ( -- error? )
open 0= if true exit then
- test-adjacent-axes
+ ['] test-adjacent-axes catch ?dup if .error fault then
close
faults
;
6 years, 6 months
[commit] r3503 - forth/lib
by repository service
Author: quozl
Date: Mon Dec 31 07:36:36 2012
New Revision: 3503
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/3503
Log:
.caller - minor stack comment fix, no execution effect
Modified:
forth/lib/caller.fth
Modified: forth/lib/caller.fth
==============================================================================
--- forth/lib/caller.fth Fri Dec 28 09:14:36 2012 (r3502)
+++ forth/lib/caller.fth Mon Dec 31 07:36:36 2012 (r3503)
@@ -5,7 +5,7 @@
\ .current-word displays the name of that
\ definition.
-\ .caller ( -- ) Displays the colon definition name as in
+\ .caller ( ip -- ) Displays the colon definition name as in
\ .current-word, and also the address "ip"
decimal
6 years, 6 months
[commit] r3502 - cpu/arm/olpc
by repository service
Author: quozl
Date: Fri Dec 28 09:14:36 2012
New Revision: 3502
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/3502
Log:
OLPC XO-4 - fix support for non-touchscreen SKUs, compatible with touchscreen SKUs, treats TOUCH_HD# signal as active high, since the touchscreen controller is pulling the signal low in normal operation, momentarily enables a pull-down in conflict against the permanent pull-up, in order to sample the signal properly. Requires a BOM change. #12391
Modified:
cpu/arm/olpc/nn-touchscreen.fth
Modified: cpu/arm/olpc/nn-touchscreen.fth
==============================================================================
--- cpu/arm/olpc/nn-touchscreen.fth Tue Dec 18 06:58:54 2012 (r3501)
+++ cpu/arm/olpc/nn-touchscreen.fth Fri Dec 28 09:14:36 2012 (r3502)
@@ -70,7 +70,12 @@
: reset ( -- ) touch-rst-gpio# dup gpio-clr gpio-set d# 250 ms ;
: hold-reset ( -- ) touch-rst-gpio# gpio-clr ;
: no-data? ( -- no-data? ) touch-int-gpio# gpio-pin@ ;
-: absent? ( -- flag ) touch-hd-gpio# gpio-pin@ 0= ;
+: absent? ( -- flag )
+ touch-hd-gpio# af@ +pull-dn touch-hd-gpio# af!
+ 1 ms
+ touch-hd-gpio# gpio-pin@
+ touch-hd-gpio# af@ 0 +pull-dn invert and touch-hd-gpio# af!
+;
d# 250 constant /pbuf
0 value pbuf
6 years, 6 months
[commit] r3501 - cpu/arm/olpc/4.0
by repository service
Author: rsmith
Date: Tue Dec 18 06:58:54 2012
New Revision: 3501
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/3501
Log:
OLPC XO-4 - EC Code 0.3.06
Modified:
cpu/arm/olpc/4.0/ec-version.fth
Modified: cpu/arm/olpc/4.0/ec-version.fth
==============================================================================
--- cpu/arm/olpc/4.0/ec-version.fth Sat Dec 15 06:14:47 2012 (r3500)
+++ cpu/arm/olpc/4.0/ec-version.fth Tue Dec 18 06:58:54 2012 (r3501)
@@ -1,6 +1,6 @@
\ The EC microcode
macro: EC_PLATFORM cl4
-macro: EC_VERSION 7_0_3_05
+macro: EC_VERSION 7_0_3_06
\ Alternate command for getting EC microcode, for testing new versions.
\ Temporarily uncomment the line and modify the path as necessary
6 years, 7 months
[commit] r3500 - cpu/x86/pc/olpc/via
by repository service
Author: quozl
Date: Sat Dec 15 06:14:47 2012
New Revision: 3500
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/3500
Log:
OLPC - allow a touchscreen, if present, to prevent automatic test execution after left rocker key, #11817
Modified:
cpu/x86/pc/olpc/via/mfgtest.fth
Modified: cpu/x86/pc/olpc/via/mfgtest.fth
==============================================================================
--- cpu/x86/pc/olpc/via/mfgtest.fth Fri Dec 14 19:27:33 2012 (r3499)
+++ cpu/x86/pc/olpc/via/mfgtest.fth Sat Dec 15 06:14:47 2012 (r3500)
@@ -202,7 +202,8 @@
(cr kill-line
0 d# 30 do
i d# 10 mod 0= if (cr i d# 10 / .d then
- mouse-event? dup if nip nip nip then ( moused? )
+ touchscreen-event? dup if nip nip nip then ( touched? )
+ mouse-event? dup if nip nip nip then or ( touched-or-moused? )
key? or if ( )
drop ( )
menu-interact ( )
6 years, 7 months
[commit] r3499 - cpu/arm/olpc/4.0
by repository service
Author: wmb
Date: Fri Dec 14 19:27:33 2012
New Revision: 3499
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/3499
Log:
Q7B09
Modified:
cpu/arm/olpc/4.0/fw-version.fth
Modified: cpu/arm/olpc/4.0/fw-version.fth
==============================================================================
--- cpu/arm/olpc/4.0/fw-version.fth Fri Dec 14 19:23:22 2012 (r3498)
+++ cpu/arm/olpc/4.0/fw-version.fth Fri Dec 14 19:27:33 2012 (r3499)
@@ -1,7 +1,7 @@
\ The overall firmware revision
macro: FW_PREFIX Q7
macro: FW_MAJOR B
-macro: FW_MINOR 08
+macro: FW_MINOR 09
\ Create a 2-character build/fw-suffix file to personalize your test builds
" fw-suffix" $file-exists? [if]
6 years, 7 months
[commit] r3498 - dev
by repository service
Author: wmb
Date: Fri Dec 14 19:23:22 2012
New Revision: 3498
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/3498
Log:
EDID parser - fixed a bug in the parsing of audio information - it got the format wrong and ignored the number of channels.
Modified:
dev/edid.fth
Modified: dev/edid.fth
==============================================================================
--- dev/edid.fth Fri Dec 14 15:35:10 2012 (r3497)
+++ dev/edid.fth Fri Dec 14 19:23:22 2012 (r3498)
@@ -159,7 +159,7 @@
;
string-array format-names
-( 0 ) ," "
+( 0 ) ," Reserved0"
( 1 ) ," LPCM"
( 2 ) ," AC-3"
( 3 ) ," MPEG1"
@@ -174,12 +174,14 @@
( 12 ) ," TrueHD"
( 13 ) ," DST"
( 14 ) ," WMA"
+( 15 ) ," Format15"
end-string-array
: .cea-audio ( offset size -- )
." Audio: "
bounds ?do
- i cea@ format-names count type ." ,"
+ i cea@ dup 3 rshift h# f and format-names count type ." ," ( byte )
+ 7 and 1+ .d ." channels,"
i 1+ cea@ .cea-freqs ." @"
i 2+ cea@ .cea-bits space
3 +loop
6 years, 7 months
[commit] r3497 - cpu/arm/olpc
by repository service
Author: wmb
Date: Fri Dec 14 15:35:10 2012
New Revision: 3497
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/3497
Log:
OLPC ARM - The SP command protocol had redundant "unlock"s that may have caused conflicts between foreground and interrupt queue polling.
Modified:
cpu/arm/olpc/spcmd.fth
Modified: cpu/arm/olpc/spcmd.fth
==============================================================================
--- cpu/arm/olpc/spcmd.fth Fri Dec 14 08:32:27 2012 (r3496)
+++ cpu/arm/olpc/spcmd.fth Fri Dec 14 15:35:10 2012 (r3497)
@@ -80,14 +80,12 @@
;
: deque? ( channel# -- false | entry true )
- lock
- select-queue if unlock false exit then
+ select-queue if false exit then
head @ tail @ <> if
q head @ ca+ c@ head inc-q-ptr true
else
false
then
- unlock
;
0 value reg-base
6 years, 7 months
[commit] r3496 - dev/olpc/dcon
by repository service
Author: quozl
Date: Fri Dec 14 08:32:27 2012
New Revision: 3496
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/3496
Log:
OLPC XO-1.75 XO-4 - fix DCON unfreeze glitch in "test /display", #12394, but needs review; calling screen wake and sleep from /dcon seems ugly.
Modified:
dev/olpc/dcon/mmp2dcon.fth
Modified: dev/olpc/dcon/mmp2dcon.fth
==============================================================================
--- dev/olpc/dcon/mmp2dcon.fth Fri Dec 14 08:25:26 2012 (r3495)
+++ dev/olpc/dcon/mmp2dcon.fth Fri Dec 14 08:32:27 2012 (r3496)
@@ -59,6 +59,20 @@
: dcon@ ( reg# -- word ) " reg-w@" $call-parent ;
: dcon! ( word reg# -- ) " reg-w!" $call-parent ;
+: mode@ ( -- mode ) 1 dcon@ ;
+: mode! ( mode -- ) 1 dcon! ;
+: hres! ( hres -- ) 2 dcon! ; \ def: h# 458 d# 1200
+: htotal! ( htotal -- ) 3 dcon! ; \ def: h# 4e8 d# 1256
+: hsync! ( sync -- ) 4 dcon! ; \ def: h# 1808 d# 24,8
+: vres! ( vres -- ) 5 dcon! ; \ def: h# 340 d# 900
+: vtotal! ( htotal -- ) 6 dcon! ; \ def: h# 390 d# 912
+: vsync! ( sync -- ) 7 dcon! ; \ def: h# 403 d# 4,3
+: timeout! ( to -- ) 8 dcon! ; \ def: h# ffff
+: scanint! ( si -- ) 9 dcon! ; \ def: h# 0000
+
+: scanint-on ( -- ) mode@ h# 100 or mode! ;
+: scanint-off ( -- ) mode@ h# 100 invert and mode! ;
+
: dcon-load ( -- ) dcon-load-gpio# gpio-set ;
: dcon-unload ( -- ) dcon-load-gpio# gpio-clr ;
@@ -72,12 +86,30 @@
1 value vga? \ VGA
0 value color? \ COLOUR
-d# 905 value resumeline \ Configurable; should be set from args
-
-: wait-output ( -- ) d# 40 ms ;
-
+d# 850 value resumeline
: mark-time ( -- start-time ) get-msecs ;
: delta-ms ( start-time -- elapsed-ms ) mark-time swap - ;
+
+: wait-output ( -- )
+ mark-time ( start-time )
+ resumeline scanint! setup-dcon-irq scanint-on ( )
+ begin ( start-time )
+ dcon-irq? if ( start-time )
+ setup-dcon-irq ( start-time )
+ begin ( start-time )
+ dcon-irq? if ( start-time )
+ drop scanint-off exit ( )
+ then ( start-time )
+ dup delta-ms d# 100 > ( start-time )
+ until ( start-time )
+ then ( start-time )
+ dup delta-ms d# 100 > ( start-time reached? )
+ until ( start-time )
+ drop ( )
+ ." Timeout leaving DCON mode" cr ( )
+ scanint-off ( )
+;
+
: wait-dcon-mode ( -- retry? )
mark-time ( start-time )
begin ( start-time )
@@ -103,23 +135,22 @@
dup vga? = if drop exit then ( source )
dup to vga? ( source )
if
-\ unblank-display
- d# 50 ms
- wait-output
- dcon-load \ Put the DCON in VGA-refreshed mode
- d# 25 ms \ Ensure that that DCON sees the DCONLOAD high
-\ display-on
+ wait-output \ Wait for the DCON to reach the scan line
+ " wake" $call-screen \ Enable video signal from SoC
+ d# 5 ms
+ dcon-load \ Put the DCON in VGA-refreshed mode
+ d# 25 ms \ Ensure that that DCON sees the DCONLOAD high
else
has-dcon-ram? if
begin ( )
setup-dcon-irq
dcon-unload \ Put the DCON in self-refresh mode
wait-dcon-mode ( retry? )
- \ display-off ( retry? )
while ( )
\ We got a false ack from the DCON so start over from LOAD state
dcon-load d# 25 ms ( )
repeat ( )
+ " sleep" $call-screen
then
then
;
@@ -132,16 +163,6 @@
['] dcon! catch if 2drop bus-reset then
;
-: mode@ ( -- mode ) 1 dcon@ ;
-: mode! ( mode -- ) 1 dcon! ;
-: hres! ( hres -- ) 2 dcon! ; \ def: h# 458 d# 1200
-: htotal! ( htotal -- ) 3 dcon! ; \ def: h# 4e8 d# 1256
-: hsync! ( sync -- ) 4 dcon! ; \ def: h# 1808 d# 24,8
-: vres! ( vres -- ) 5 dcon! ; \ def: h# 340 d# 900
-: vtotal! ( htotal -- ) 6 dcon! ; \ def: h# 390 d# 912
-: vsync! ( sync -- ) 7 dcon! ; \ def: h# 403 d# 4,3
-: timeout! ( to -- ) 8 dcon! ; \ def: h# ffff
-: scanint! ( si -- ) 9 dcon! ; \ def: h# 0000
[ifdef] old-way
: dcon-bright! ( level -- ) d# 10 dcon! ; \ def: h# xxxF
' dcon-bright! to bright!
@@ -261,6 +282,16 @@
then
;
+[ifdef] notdef
+: test-dcon-freeze-glitch
+ screen-ih remove-output
+ " gvsr" $call-screen
+ begin dcon-freeze dcon-unfreeze key? until key drop
+ screen-ih add-output
+ page
+;
+[then]
+
\ LICENSE_BEGIN
\ Copyright (c) 2010 FirmWorks
\
6 years, 7 months
