Author: quozl Date: Sat Sep 22 08:33:19 2012 New Revision: 3324 URL: http://tracker.coreboot.org/trac/openfirmware/changeset/3324
Log: OLPC XO-1.75 XO-4 - ensure RTC SQWE is enabled before using it as SoC slow clock, related to CForth 2cf4585dace915da58fe47282a1b92db815a23b3
Modified: cpu/arm/olpc/build-fw.fth cpu/arm/olpc/rtc.fth
Modified: cpu/arm/olpc/build-fw.fth ============================================================================== --- cpu/arm/olpc/build-fw.fth Sat Sep 22 04:38:47 2012 (r3323) +++ cpu/arm/olpc/build-fw.fth Sat Sep 22 08:33:19 2012 (r3324) @@ -316,6 +316,8 @@ fload ${BP}/cpu/arm/olpc/rtc.fth stand-init: RTC " /i2c@d4031000/rtc" open-dev clock-node ! + \ use RTC 32kHz clock as SoC external slow clock + h# 38 mpmu@ 1 or h# 38 mpmu! ;
warning @ warning off
Modified: cpu/arm/olpc/rtc.fth ============================================================================== --- cpu/arm/olpc/rtc.fth Sat Sep 22 04:38:47 2012 (r3323) +++ cpu/arm/olpc/rtc.fth Sat Sep 22 08:33:19 2012 (r3324) @@ -40,7 +40,12 @@ else ( value ) drop true ( true ) then ( okay? ) + + \ manage legacy RTC CMOS usage ?clear + + \ enable 32kHz clock output + h# b3 7 rtc! ; : close ( -- ) ;