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, 4 months
[commit] r3749 - cpu/arm/olpc/4.0
by repository service
Author: quozl
Date: Mon Nov 24 23:53:00 2014
New Revision: 3749
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/3749
Log:
Q7B42
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 Mon Nov 24 23:48:54 2014 (r3748)
+++ cpu/arm/olpc/4.0/fw-version.fth Mon Nov 24 23:53:00 2014 (r3749)
@@ -1,7 +1,7 @@
\ The overall firmware revision
macro: FW_PREFIX Q7
macro: FW_MAJOR B
-macro: FW_MINOR 41
+macro: FW_MINOR 42
\ Create a 2-character build/fw-suffix file to personalize your test builds
" fw-suffix" $file-exists? [if]
4 years, 6 months
[commit] r3748 - cpu/arm
by repository service
Author: quozl
Date: Mon Nov 24 23:48:54 2014
New Revision: 3748
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/3748
Log:
[ARM] fixed signed double conversion, from Matthijs van Duin <matthijsvanduin(a)gmail.com>, 24th November 2014, fixes a regression introduced in r3740, affected d<= and d> only.
Modified:
cpu/arm/kerncode.fth
Modified: cpu/arm/kerncode.fth
==============================================================================
--- cpu/arm/kerncode.fth Thu Nov 20 00:05:11 2014 (r3747)
+++ cpu/arm/kerncode.fth Mon Nov 24 23:48:54 2014 (r3748)
@@ -822,17 +822,17 @@
c;
code d> ( d1 d2 -- f )
ldmia sp!,{r0,r1,r2} \ tos r0 r1 r2
- subs r2,r2,r0
- sbcs r1,r1,tos
- movle tos,#0
- mvngt tos,#0
+ subs r2,r0,r2
+ sbcs r1,tos,r1
+ movge tos,#0
+ mvnlt tos,#0
c;
code d<= ( d1 d2 -- f )
ldmia sp!,{r0,r1,r2} \ tos r0 r1 r2
- subs r2,r2,r0
- sbcs tos,r1,tos
- movgt tos,#0
- mvnle tos,#0
+ subs r2,r0,r2
+ sbcs r1,tos,r1
+ movlt tos,#0
+ mvnge tos,#0
c;
code du< ( d1 d2 -- f )
ldmia sp!,{r0,r1,r2} \ tos r0 r1 r2
4 years, 6 months
[commit] r3747 - cpu/arm/olpc/4.0
by repository service
Author: quozl
Date: Thu Nov 20 00:05:11 2014
New Revision: 3747
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/3747
Log:
Q7B41
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 Wed Nov 19 23:47:06 2014 (r3746)
+++ cpu/arm/olpc/4.0/fw-version.fth Thu Nov 20 00:05:11 2014 (r3747)
@@ -1,7 +1,7 @@
\ The overall firmware revision
macro: FW_PREFIX Q7
macro: FW_MAJOR B
-macro: FW_MINOR 40
+macro: FW_MINOR 41
\ Create a 2-character build/fw-suffix file to personalize your test builds
" fw-suffix" $file-exists? [if]
4 years, 6 months
[commit] r3746 - cpu/arm/olpc/4.0
by repository service
Author: quozl
Date: Wed Nov 19 23:47:06 2014
New Revision: 3746
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/3746
Log:
OLPC XO-4 - new EC firmware for Simplo LiPoly battery module
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 Mon Nov 17 00:36:21 2014 (r3745)
+++ cpu/arm/olpc/4.0/ec-version.fth Wed Nov 19 23:47:06 2014 (r3746)
@@ -1,6 +1,6 @@
\ The EC microcode
macro: EC_PLATFORM cl4
-macro: EC_VERSION 7_0_4_12
+macro: EC_VERSION 7_0_5_01
\ Alternate command for getting EC microcode, for testing new versions.
\ Temporarily uncomment the line and modify the path as necessary
4 years, 6 months
[commit] r3745 - cpu/x86/pc/olpc
by repository service
Author: quozl
Date: Mon Nov 17 00:36:21 2014
New Revision: 3745
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/3745
Log:
OLPC - tidy boost command output, break the line
Modified:
cpu/x86/pc/olpc/apt.fth
Modified: cpu/x86/pc/olpc/apt.fth
==============================================================================
--- cpu/x86/pc/olpc/apt.fth Mon Nov 3 08:27:15 2014 (r3744)
+++ cpu/x86/pc/olpc/apt.fth Mon Nov 17 00:36:21 2014 (r3745)
@@ -18,7 +18,7 @@
: .os " more int:\boot\olpc_build" eval ;
-: boost .bat h# 3b ec-cmd d# 1000 ms h# 3c ec-cmd d# 1000 ms .bat ;
+: boost .bat cr h# 3b ec-cmd d# 1000 ms h# 3c ec-cmd d# 1000 ms .bat ;
stand-init: wifi
" NN" find-tag if ?-null $essid then \ network name
4 years, 6 months
[commit] r3744 - in cpu: arm/olpc x86/pc/olpc/via/Notes
by repository service
Author: quozl
Date: Mon Nov 3 08:27:15 2014
New Revision: 3744
URL: http://tracker.coreboot.org/trac/openfirmware/changeset/3744
Log:
OLPC XO-1.75 XO-4 - backport XO-4 EC recovery changes into the XO-1.75 EC recovery script, and test.
Modified:
cpu/arm/olpc/edi.fth
cpu/x86/pc/olpc/via/Notes/fix-ec-175.fth
cpu/x86/pc/olpc/via/Notes/fix-ec-4.fth
Modified: cpu/arm/olpc/edi.fth
==============================================================================
--- cpu/arm/olpc/edi.fth Fri Oct 31 06:29:38 2014 (r3743)
+++ cpu/arm/olpc/edi.fth Mon Nov 3 08:27:15 2014 (r3744)
@@ -1,7 +1,7 @@
\ See license at end of file
purpose: Access and FLASH programming for KB3731 EC via its "EDI" interface
-\ The following code depends on externally-privided low-level SPI bus
+\ The following code depends on externally-provided low-level SPI bus
\ access primitives that are defined in "bbedi.fth" for the "native"
\ case (EC and CPU on the same machine). They can also be implemented
\ for tethered programming from a different machine like an XO-1.5.
Modified: cpu/x86/pc/olpc/via/Notes/fix-ec-175.fth
==============================================================================
--- cpu/x86/pc/olpc/via/Notes/fix-ec-175.fth Fri Oct 31 06:29:38 2014 (r3743)
+++ cpu/x86/pc/olpc/via/Notes/fix-ec-175.fth Mon Nov 3 08:27:15 2014 (r3744)
@@ -3,15 +3,21 @@
\ HOWTO USE THIS
\ Put this file and ecimage.bin (32768 bytes) on a USB stick, insert into XO-1.5
\ Connect 6-pin programming cable from XO-1.5 recovery driver port (J3) to
-\ XO-1.75 A2 EDI "REFLASH EC HEADER" (J3)
+\ XO-1.75 EDI "REFLASH EC HEADER" (J3)
\ Power on XO-1.5
\ Power on XO-1.75
\ ok fload u:\fixec175.fth
\ ok select /spi
-\ ok recover-ec
+\ ok excavate-ec u:\old.bin
+\ ok recover-ec u:\ecimage.bin
dev /spi
+\ from cpu/arm/olpc/1.75/config.fth
+char 4 constant expected-ec-version
+h# 8000 constant /ec-flash
+h# 7e80 constant ec-flags-offset \ don't program or verify this page
+
: pio16mhz ( -- )
h# 01 h# 6c spi-b! \ 33/(2*1) MHz
h# 00 h# 6e spi-b! \ No special clocking
@@ -54,6 +60,7 @@
out-ptr @ spi-b@
8 out-ptr !
;
+: spi-start ( -- ) ;
: edi-wait-b ( -- b )
4 #in-bytes !
@@ -79,7 +86,7 @@
\ *** Start of verbatim inclusion of edi.fth
-\ The following code depends on externally-privided low-level SPI bus
+\ The following code depends on externally-provided low-level SPI bus
\ access primitives that are defined in "bbedi.fth" for the "native"
\ case (EC and CPU on the same machine). They can also be implemented
\ for tethered programming from a different machine like an XO-1.5.
@@ -91,7 +98,44 @@
\ spi-out ( byte -- ) - Send byte
\ spi-in ( -- byte ) - Receive byte
+0 value edi-chip-id
+: kb9010? ( -- flag ) edi-chip-id 4 = ;
+
+: efcfg ( -- reg# ) kb9010? if h# fead else h# fea0 then ;
+: efcmd ( -- reg# ) kb9010? if h# feac else h# fea7 then ;
+: efdat ( -- reg# ) kb9010? if h# feab else h# feaa then ; \ io3731 has different read and write regs
+h# feab constant efdat-in
+: rst8051 ( -- reg# ) kb9010? if h# ff14 else h# f010 then ;
+: ecreboot ( -- reg# ) kb9010? if h# ff01 else h# f018 then ;
+\ Issues with .py code
+\ A14:A8 should be A15:A8 several places
+\ inconsistent use of handle vs gd.handle in edi_erase_chip
+
+\ KB9010 stuff...
+d# 59 d# 1024 * constant /kb9010-flash
+h# fe80 constant wdtcfg
+h# fe81 constant wdtpf
+h# fe82 constant wdt
+h# fea2 constant shccfg
+\ h# fea5 constant xbicfg \ Unused
+h# fea6 constant xbics
+\ h# feae constant efdatr \ Unused
+\ h# feaf constant emfburw
+h# feb2 constant xbiwp
+\ h# feb6 constant xbipump
+\ h# feb7 constant xbifm
+\ h# feb8 constant sbivr
+h# feb9 constant xbis
+h# ff0d constant clkcfg
+h# ff0f constant pllcfg
+h# ff1d constant ecsts
+h# ff1f constant pllcfg2
+h# ff14 constant pxcfg
+
+\ end KB9010 stuff...
+
d# 128 constant /flash-page
+defer edi-progress ' 2drop to edi-progress ( offset size -- )
: edi-cmd,adr ( offset cmd -- ) \ Send command plus 3 address bytes
spi-cs-on ( offset cmd )
@@ -103,12 +147,22 @@
;
[ifndef] edi-wait-b
: edi-wait-b ( -- b ) \ Wait for and receive EC response byte
- d# 10 0 do
- spi-in h# 50 = if
- spi-in ( b )
- spi-cs-off ( b )
- unloop exit
- then
+ d# 100 0 do
+ spi-in ( d )
+ dup h# 5f <> if ( d )
+ dup h# 50 = if ( d )
+ drop
+ spi-in ( b )
+ spi-cs-off ( b )
+ unloop exit
+ then ( d )
+ spi-cs-off ( d )
+ \ The setup in the CL4 has can also report zeros when inactive.
+ 2dup h# ff = 00 = or abort" EDI byte in inactive"
+ ." Unknown EDI byte in response: " .h cr
+ true abort" EDI byte in confused"
+ then ( d )
+ drop
loop
spi-cs-off
true abort" EDI byte in timeout"
@@ -142,18 +196,25 @@
;
[then]
: reset-8051 ( -- ) \ Reset 8-5
- h# f010 edi-b@ 1 or h# f010 edi-b!
+ rst8051 edi-b@ 1 or rst8051 edi-b!
;
: unreset-8051 ( -- ) \ Reset 8-5
- h# f010 edi-b@ 1 invert and h# f010 edi-b!
+ rst8051 edi-b@ 1 invert and rst8051 edi-b!
+ d# 2000 ms
;
\ 0 in bit 0 selects masked ROM as code source for 8051, 1 selects FLASH
\ The 8051 should be in reset mode when changing that bit.
+
: select-flash ( -- ) \ Setup for access to FLASH inside the EC
+ kb9010? if exit then
h# f011 edi-b@ 1 or h# f011 edi-b!
;
+: edi-read-id ( -- id )
+ spi-cs-on h# 3e spi-out spi-in spi-cs-off
+;
+
: probe-rdid ( -- found? ) \ Verify that the EC is the one we think it is
select-flash
h# f01c ['] edi-w@ catch if ( x )
@@ -163,12 +224,15 @@
1 invert and h# 3730 =
;
+: finished? ( b -- flag )
+ kb9010? if 2 and 0= else h# 80 and h# 80 = then
+;
: wait-flash-busy ( -- ) \ Wait for an erase/programming operation to complete
get-msecs h# 1000 + ( limit )
begin ( limit )
- h# fea0 edi-b@ ( limit b )
- h# 80 and if ( limit )
- drop exit
+ efcfg edi-b@ ( limit b )
+ finished? if ( limit )
+ drop exit ( -- )
then ( limit )
dup get-msecs - 0<= ( limit timeout? )
until ( limit )
@@ -176,11 +240,12 @@
true abort" EDI FLASH busy timeout"
;
-: flash-cmd ( b -- ) h# fea7 edi-b! ;
+: flash-cmd ( b -- ) efcmd edi-b! ;
: set-offset ( offset -- )
- wbsplit ( offset-low offset-hi )
- h# fea9 edi-b! h# fea8 edi-b! ( )
+ lbsplit drop ( offset-low mid hi )
+ kb9010? if h# feaa edi-b! else drop then ( offset-low mid )
+ h# fea9 edi-b! h# fea8 edi-b! ( )
;
: erase-page ( offset -- )
@@ -189,14 +254,19 @@
h# 20 flash-cmd ( )
;
-: erase-chip ( -- ) wait-flash-busy h# 60 flash-cmd wait-flash-busy ;
+: erase-chip ( -- )
+ 0 set-offset \ New code does this (and does not wait-flash-busy)
+ wait-flash-busy h# 60 flash-cmd wait-flash-busy
+;
-: send-byte ( b offset -- ) set-offset h# feaa edi-b! 2 flash-cmd ;
+: send-byte ( b offset -- ) set-offset efdat edi-b! 2 flash-cmd ;
: edi-program-page ( adr offset -- )
\ Clear HVPL
wait-flash-busy h# 80 flash-cmd ( adr offset )
+ wait-flash-busy ( adr offset ) \ Necessary?
+
\ Fill the page buffer
swap /flash-page bounds do ( offset )
i c@ over send-byte ( offset )
@@ -206,10 +276,10 @@
\ Commit the buffer to the FLASH memory
wait-flash-busy ( ) \ Redundant wait?
- h# 70 flash-cmd ( )
+ h# 70 flash-cmd ( ) \ Program page command
wait-flash-busy ( )
;
-h# 7e80 constant ec-flags-offset
+
: edi-program-flash ( adr len offset -- )
cr ( adr len offset )
swap 0 ?do ( adr offset )
@@ -218,6 +288,7 @@
dup i + erase-page ( adr offset )
over i + over i + edi-program-page ( adr offset )
then ( adr offset )
+ i /ec-flash edi-progress ( adr offset )
/flash-page +loop ( adr offset )
2drop ( )
;
@@ -229,12 +300,14 @@
edi-next-b@ i c! ( )
loop ( )
;
+
: trim@ ( offset -- b )
set-offset
h# 90 flash-cmd
wait-flash-busy
- h# feab edi-b@
+ efdat-in edi-b@ \ reg: efdat
;
+
: trim-tune ( -- )
\ firmware-id 0= if
\ Read trim data and write to register (for ENE macros)
@@ -293,39 +366,148 @@
then
\ then
;
-: edi-open ( -- )
- \ slow-edi-clock \ Target speed between 1 and 2 MHz
+: set-chip-id ( -- )
+ ['] edi-read-id catch if ( )
+ edi-read-id ( id )
+ then ( id )
+ to edi-chip-id
+;
+: kb9010-init ( -- )
+ h# 00 xbics edi-b!
+ h# 00 xbiwp edi-b! \ Clear XBI write protection
+ h# ff wdt edi-b! \ Disable WDT
+ h# 00 wdtcfg edi-b!
+ h# 00 wdtpf edi-b!
+ h# 00 shccfg edi-b! \ Disable SHC
+ h# 0c clkcfg edi-b! \ Set the 8051 to 32Mhz
+ h# 08 efcfg edi-b! \ Enable the embedded flash cmd mode
+;
+base @ hex
+create special-row 1f0 w, 1f1 w, 1f2 w, 1f4 w, 1f5 w, 1f6 w, 1f3 w,
+create dest-regs feb9 w, feb6 w, feb6 w, feb7 w, feb8 w, feb8 w, feb7 w,
+create source-bits 1f c, 0f c, 0f c, 0f c, 07 c, 1f c, 0f c,
+create dest-bits 1f c, f0 c, 0f c, 0f c, e0 c, 1f c, f0 c,
+create shift-cnt 0 c, 4 c, 0 c, 0 c, 5 c, 0 c, 4 c,
+base !
+: kb9010-trimtune ( -- )
+ h# 1ff trim@ 0<> if
+ 7 0 do
+ special-row i wa+ w@ edi-b@ ( data )
+ source-bits i ca+ c@ or ( field )
+ shift-cnt i ca+ c@ lshift ( field' )
+ dest-regs i wa+ w@ edi-b@ ( field dest )
+ dest-bits i ca+ c@ invert and or ( dest' )
+ dest-regs i wa+ w@ edi-b! ( )
+ loop
+ wait-flash-busy
+ then
+ h# 80 trim@ h# 5a = if
+ ecsts edi-b@ ( old-ecsts )
+ dup 4 or ecsts edi-b! ( old-ecsts ) \ chipid is now pllcfg2
+
+ xbis edi-b@ h# 3f and ( old-ecsts xbis-bits )
+ h# 81 trim@ 3 and 6 lshift or ( old-ecsts xbis-value )
+ xbis edi-b! ( old-ecsts )
+
+ h# 82 trim@ h# f and 4 lshift ( old-ecsts pll-high )
+ h# 83 trim@ h# f0 and 4 rshift or ( old-ecsts pll-value )
+ pllcfg edi-b! ( old-ecsts )
+
+ pllcfg2 edi-b@ h# 3f and ( old-ecsts pll2-bits )
+ h# 82 trim@ h# 30 and 2 lshift or ( old-ecsts pll2-value )
+ pllcfg2 edi-b! ( old-ecsts )
+
+ ecsts edi-b! ( )
+ then
+;
+\ This is used to start EDI from routines where you do not want to
+\ put the EC into reset. ie the mfg tag reading routines
+: edi-open-active ( -- )
spi-start
- \ The first operation often fails so retry it
- ['] select-flash catch if select-flash then
+
+ \ Does a dummy ready and throws away the result.
+ \ required to get the EDI interface enabled
+ h# ff22 ['] edi-b@ catch 2drop
+
+ set-chip-id
+
+ select-flash
+;
+\ Full EDI startup sequece. Used when you want to reprogram the EC.
+: edi-open ( -- )
+ edi-open-active
+
reset-8051
- trim-tune
- \ fast-edi-clock \ Target speed up to 16 MHz
- \ reset
+
+ kb9010? if
+ kb9010-init
+ kb9010-trimtune
+ else
+ trim-tune
+ then
;
+
\ *** End of verbatim inclusion of edi.fth
-: recover-ec ( -- )
+\ *** Start of selective inclusion of cpu/arm/olpc/ecflash.fth
+
+: check-signature ( adr -- )
+ /ec-flash + h# 100 - ( adr' )
+ dup " XO-EC" comp abort" Bad signature in EC image" ( adr )
+ dup ." EC firmware version: " cscount type cr ( adr )
+ dup 6 + c@ expected-ec-version <> abort" Wrong EC version" ( adr )
+ drop
+;
+
+: ?ec-image-valid ( adr len -- )
+ dup /ec-flash <> abort" Image file is the wrong size" ( adr len )
+ over c@ h# 02 <> abort" Invalid EC image - must start with 02"
+ 2dup 0 -rot bounds ?do i l@ + /l +loop ( adr len checksum )
+ abort" Incorrect EC image checksum" ( adr len )
+ over check-signature ( adr len )
+ 2drop
+;
+
+0 value ec-file-loaded?
+: get-ec-file ( "name" -- )
+ safe-parse-word ." Reading " 2dup type cr
+ $read-open
+ load-base /ec-flash ifd @ fgets ( len )
+ ifd @ fclose ( len )
+ load-base swap ?ec-image-valid
+;
+
+: ignore-ec-flags ( adr -- ) ec-flags-offset + /flash-page erase ;
+: reflash-ec ( -- )
+
pio1.5mhz
edi-open
- " u:\ecimage.bin" $read-file abort" Read error" ( adr len )
- erase-chip ( adr len )
- 2dup 0 edi-program-flash ( adr len )
- load-base 8000 0 edi-read-flash ( adr len )
- 2dup load-base swap comp if ." Different" then ( adr len )
- free-mem ( )
+ erase-chip
+ ." Writing ..." load-base /ec-flash 0 edi-program-flash cr
+ ." Verifying ..."
+ load-base /ec-flash + /ec-flash 0 edi-read-flash
+
+ load-base ignore-ec-flags
+ load-base /ec-flash + ignore-ec-flags
+ load-base load-base /ec-flash + /ec-flash comp
+ abort" Miscompare!"
+ cr
;
+: recover-ec ( "filename" -- ) get-ec-file reflash-ec ;
-: read-ec ( -- )
+: read-ec-flash ( -- )
pio1.5mhz
edi-open
- load-base h# 8000 0 edi-read-flash ( )
- ." Writing EC image to u:\ecimage.bin"
- " u:\ecimage.bin" $new-file ( )
- load-base h# 8000 ofd @ fputs ( )
- ofd @ fclose ( )
- ." Written" cr
+ flash-buf /ec-flash 0 edi-read-flash
;
+: excavate-ec ( "name" -- )
+ safe-parse-word $new-file
+ read-ec-flash
+ load-base /ec-flash ofd @ fputs
+ ofd @ fclose
+;
+
+\ *** End of selective inclusion of cpu/arm/olpc/ecflash.fth
dend
Modified: cpu/x86/pc/olpc/via/Notes/fix-ec-4.fth
==============================================================================
--- cpu/x86/pc/olpc/via/Notes/fix-ec-4.fth Fri Oct 31 06:29:38 2014 (r3743)
+++ cpu/x86/pc/olpc/via/Notes/fix-ec-4.fth Mon Nov 3 08:27:15 2014 (r3744)
@@ -60,6 +60,7 @@
out-ptr @ spi-b@
8 out-ptr !
;
+: spi-start ( -- ) ;
: edi-wait-b ( -- b )
4 #in-bytes !
4 years, 6 months
