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openfirmware@openfirmware.info
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r1096 - cpu/x86/pc/olpc dev/geode
by svn＠openfirmware.info
Author: wmb Date: 2009-02-02 07:47:25 +0100 (Mon, 02 Feb 2009) New Revision: 1096 Modified: cpu/x86/pc/olpc/vsapci.fth dev/geode/msr.fth Log: OLPC trac 9226 - virtualize AC97 PCI config base address so Windows XO Audio driver works whether or not the audio device is enabled at Windows boot. Modified: cpu/x86/pc/olpc/vsapci.fth =================================================================== --- cpu/x86/pc/olpc/vsapci.fth 2009-01-29 17:03:19 UTC (rev 1095) +++ cpu/x86/pc/olpc/vsapci.fth 2009-02-02 06:47:25 UTC (rev 1096) @@ -242,11 +242,18 @@ h# 51010081 2 pick 4 and if msr-set else msr-clr then ; : ac97-cmd-reg ( object value -- ) - set-cmd-reg ( adr value ) + set-cmd-reg + h# 300 ?bus-master ( adr value ) + 1 and if ( adr ) + >bar-info ( base-adr size ) + 2dup 1 h# 5100.0026 set-io-rconf ( base-adr size ) + h# a h# 5101.00e1 set-iod-bm ( ) + else ( adr ) + drop ( ) + h# 5100.0026 rconf-off ( ) + h# 5101.00e1 iod-bm-off ( ) + then - h# 300 ?bus-master ( adr value ) - - 2drop \ The MSRs are: \ 5101.00e1 a0000001.480fff80. IOD_BM \ 5100.0026 014f0001.01480001. io-rconf Modified: dev/geode/msr.fth =================================================================== --- dev/geode/msr.fth 2009-01-29 17:03:19 UTC (rev 1095) +++ dev/geode/msr.fth 2009-02-02 06:47:25 UTC (rev 1096) @@ -36,7 +36,7 @@ : p2d-range-off ( msr# -- ) p2d-range-disabled rot msr! ; -: >p2d-bm ( ( base size type -- d.msrval ) +: >p2d-bm ( base size type -- d.msrval ) >r ( base size r: type ) negate page# ( base mask-page r: type ) swap page# ( base-page mask-page r: type ) @@ -59,6 +59,15 @@ : p2d-bm-off ( msr# -- ) p2d-bm-disabled rot msr! ; +: >iod-bm ( base size type -- d.msrval ) + >r ( base size r: type ) + negate h# fffff and ( base mask r: type ) + swap ( mask base r: type ) + 0 r> p2d-format ( msr.low msr.hi' ) +; +: set-iod-bm ( base size type msr# -- ) >r >iod-bm r> msr! ; +alias iod-bm-off p2d-bm-off + : >rconf ( base-adr size mode -- d.msrval ) >r ( base-adr size r: mode ) bounds ( end-adr base-adr r: mode ) @@ -69,6 +78,15 @@ : set-rconf ( base-adr size mode msr# -- ) >r >rconf r> msr! ; +: >io-rconf ( base-adr size mode -- d.msrval ) + >r ( base-adr size r: mode ) + bounds ( end-adr base-adr r: mode ) + d# 12 lshift r> or ( end-adr msr.low ) + swap 4 - d# 12 lshift 1 or ( msr.low msr.high ) +; + +: set-io-rconf ( base-adr size mode msr# -- ) >r >io-rconf r> msr! ; + : rconf-off ( msr# -- ) rconf-disabled rot msr! ;
11 years, 7 months
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