[OpenBIOS] r324 - cpu/x86/pc/olpc

[svn at openbios.org]

Author: wmb
Date: 2007-04-26 04:58:02 +0200 (Thu, 26 Apr 2007)
New Revision: 324

Modified:
   cpu/x86/pc/olpc/gpioinit.fth
   cpu/x86/pc/olpc/resume.bth
Log:
OLPC - Turn of internal pullup on THRM_ALARM# to prevent leakage during suspend.

Modified: cpu/x86/pc/olpc/gpioinit.fth
===================================================================
--- cpu/x86/pc/olpc/gpioinit.fth	2007-04-25 07:27:37 UTC (rev 323)
+++ cpu/x86/pc/olpc/gpioinit.fth	2007-04-26 02:58:02 UTC (rev 324)
@@ -7,11 +7,11 @@
    h#     c100 h# 1010 pl!  \ GPIOL_OUT_AUX1_SELECT - SMBDAT, SMBCLK, UART1TX
 \  h# ffff0000 h# 1014 pl!  \ GPIOL_OUT_AUX2_SELECT - default
 \  h# 1001effe h# 1018 pl!  \ GPIOL_PULLUP_ENABLE - I don't think we need pullups
-   h# 397a0000 h# 1018 pl!  \ GPIOL_PULLUP_ENABLE - Disable pullups on SMI#, DCONBLNK/LOAD/STAT UART1TX, VGA, MICDC
+   h# 3d7a0000 h# 1018 pl!  \ GPIOL_PULLUP_ENABLE - Disable pullups on SMI#, DCONBLNK/LOAD/STAT, THRM_ALARM, UART1TX, VGA, MICDC
 \  h# efff1000 h# 101c pl!  \ GPIOL_PULLDOWN_ENABLE - default
    h# ffff0000 h# 101c pl!  \ GPIOL_PULLDOWN_ENABLE - Disable all pull-downs
-   h#     d6e5 h# 1020 pl!  \ GPIOL_INPUT_ENABLE - DCONBLNK, DCONLOAD, THERM_ALRM, DCONIRQ, DCONSTAT1/0, MEMSIZE, PCI_INTA
-   h#     0081 h# 1024 pl!  \ GPIOL_INPUT_INVERT_ENABLE - Invert DCONIRQ and PCI_INTA#
+   h#     d6e5 h# 1020 pl!  \ GPIOL_INPUT_ENABLE - DCONBLNK, DCONLOAD, THRM_ALARM, DCONIRQ, DCONSTAT1/0, MEMSIZE, PCI_INTA
+   h#     0481 h# 1024 pl!  \ GPIOL_INPUT_INVERT_ENABLE - Invert THRM_ALARM, DCONIRQ and PCI_INTA#
 \  h# ffff0000 h# 1028 pl!  \ GPIOL_IN_FILTER_ENABLE - default
 \  h# ffff0000 h# 102c pl!  \ GPIOL_IN_EVENTCOUNT_ENABLE - default
 \  h# 2d9bd264 h# 1030 pl!  \ GPIOL_READ_BACK

Modified: cpu/x86/pc/olpc/resume.bth
===================================================================
--- cpu/x86/pc/olpc/resume.bth	2007-04-25 07:27:37 UTC (rev 323)
+++ cpu/x86/pc/olpc/resume.bth	2007-04-26 02:58:02 UTC (rev 324)
@@ -141,6 +141,10 @@
    gpio-port h# c4 + # dx mov  dx ax in  ax stos  \ Neg edge enable
    gpio-port h# bc + # dx mov  dx ax in  ax stos  \ High bank lock
 
+   \ Switch the THRM_ALARM# pin to GPIO during suspend, so it doesn't trigger falsely.
+   \ THRM_ALARM# is in the standby power well
+   h# 0400.0000 # ax mov  gpio-port h# 34 + # dx mov  ax dx out  \ GPIO, not THRM_ALARM#
+
 [ifdef] save-display
 \ \ h# 3c 0  do  i gp@ l!+  4 +loop  h# 4c gp@ l!+
 \  h# f # cx mov  gp-pa set-base  begin  0 [bx] ax mov  ax stos  4 # bx add  loopa