[coreboot-gerrit] New patch to review for coreboot: 4f37f6e cpu/amd/agesa/Kconfig: Select LAPIC_MONOTONIC_TIMER

Paul Menzel (paulepanter@users.sourceforge.net) gerrit at coreboot.org
Thu May 2 10:46:57 CEST 2013


Paul Menzel (paulepanter at users.sourceforge.net) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/3172

-gerrit

commit 4f37f6e03f4b401625139ddef97c67051d488a71
Author: Paul Menzel <paulepanter at users.sourceforge.net>
Date:   Wed May 1 16:36:56 2013 +0200

    cpu/amd/agesa/Kconfig: Select LAPIC_MONOTONIC_TIMER
    
    Thanks to Aaron Durbin coreboot provides monotonic timers. Select
    the LAPIC monotonic timer for the AMD AGESA CPUs.
    
    The following is an excerpt from serial log of the ASRock E350M1.
    
        $ grep usec seriallog-20130502_100902.log
        01.016: Root Device init 1578 usecs
        01.029: CPU_CLUSTER: 0 init 112415 usecs
        01.029: PCI: 00:00.0 init 3240 usecs
        01.088: PCI: 00:01.0 init 104572 usecs
        01.088: PCI: 00:01.1 init 1663 usecs
        01.088: PCI: 00:11.0 init 1662 usecs
        01.088: PCI: 00:14.0 init 1662 usecs
        01.088: PCI: 00:14.3 init 8665 usecs
        01.088: PCI: 00:14.4 init 1665 usecs
        01.088: PCI: 00:18.0 init 1662 usecs
        01.088: PCI: 00:18.1 init 1663 usecs
        01.088: PCI: 00:18.2 init 1663 usecs
        01.088: PCI: 00:18.3 init 1663 usecs
        01.088: PCI: 00:18.4 init 1663 usecs
        01.088: PCI: 00:18.5 init 1665 usecs
        01.088: PCI: 00:18.6 init 1664 usecs
        01.088: PCI: 00:18.7 init 1663 usecs
        01.088: PNP: 002e.2 init 1576 usecs
        01.088: PNP: 002e.5 init 1577 usecs
        01.088: PNP: 002e.a init 1590 usecs
        01.088: PNP: 002e.b init 30144 usecs
        01.088: PCI: 03:00.0 init 1663 usecs
    
    So the graphics device needs around 100 ms for being initialized.
    
    The full serial log is in the Gerrit comments.
    
    Change-Id: Ia7b3012e51fcf94b0f22290cdef2b4424295ad6d
    Signed-off-by: Paul Menzel <paulepanter at users.sourceforge.net>
---
 src/cpu/amd/agesa/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/cpu/amd/agesa/Kconfig b/src/cpu/amd/agesa/Kconfig
index 7b2f2eb..5e99c7b 100644
--- a/src/cpu/amd/agesa/Kconfig
+++ b/src/cpu/amd/agesa/Kconfig
@@ -27,6 +27,7 @@ config CPU_AMD_AGESA
         default n
 	select TSC_SYNC_LFENCE
 	select UDELAY_LAPIC
+	select LAPIC_MONOTONIC_TIMER
 
 if CPU_AMD_AGESA
 



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