* Peter Stuge stuge-linuxbios@cdy.org [070315 21:27]:
please! whenever you find the time.
Lots of people still use FILO. (Even though I try to talk it down while trying to find someone to look into the Grub2 port)
Find attached a patch for timer2 and hard reset. I'm looking at FILO right now.
The below patch works fine on my system, but some older versions of the C3 lack support for the rdtsc command. (Nehemiah has it)
Whereas the Centaur/Wincore is said to not have rdtsc.
I would assume the patch is wrong for the epia and right for the epia-m.
Do you mind dropping the epia part?
Changes by Richard Smith and me from the LinuxBIOS symposium 2006.
Without CONFIG_TSC_X86RDTSC_CALIBRATE_WITH_TIMER2 1 million outb():s are used for timer calibration and that takes over one second. EPIA boards have the x86 timer2 so let's use it and make boot faster.
src/mainboard/via/epia*/reset.c is dead code so HARD_RESET should be 0. (entire file within #if 0)
Signed-off-by: Peter Stuge peter@stuge.se
Index: src/mainboard/via/epia-m/Options.lb
--- src/mainboard/via/epia-m/Options.lb (revision 2570) +++ src/mainboard/via/epia-m/Options.lb (working copy) @@ -38,6 +38,7 @@ uses MAXIMUM_CONSOLE_LOGLEVEL uses CONFIG_CONSOLE_SERIAL8250 uses CONFIG_UDELAY_TSC +uses CONFIG_TSC_X86RDTSC_CALIBRATE_WITH_TIMER2 uses CONFIG_PCI_ROM_RUN uses CONFIG_CONSOLE_VGA uses CONFIG_MAX_PCI_BUSES @@ -66,11 +67,12 @@ ## Use TSC for udelay. ## default CONFIG_UDELAY_TSC=1 +default CONFIG_TSC_X86RDTSC_CALIBRATE_WITH_TIMER2=1
## ## Build code to reset the motherboard from linuxBIOS ## -default HAVE_HARD_RESET=1 +default HAVE_HARD_RESET=0
## ## Build code to export a programmable irq routing table Index: src/mainboard/via/epia/Options.lb =================================================================== --- src/mainboard/via/epia/Options.lb (revision 2570) +++ src/mainboard/via/epia/Options.lb (working copy) @@ -10,7 +10,8 @@ uses USE_FALLBACK_IMAGE uses HAVE_FALLBACK_BOOT uses HAVE_HARD_RESET -uses CONFIG_UDELAY_IO +uses CONFIG_UDELAY_TSC +uses CONFIG_TSC_X86RDTSC_CALIBRATE_WITH_TIMER2 uses HAVE_OPTION_TABLE uses USE_OPTION_TABLE uses CONFIG_ROM_PAYLOAD @@ -81,12 +82,13 @@ ## ## Build code to reset the motherboard from linuxBIOS ## -default HAVE_HARD_RESET=1 +default HAVE_HARD_RESET=0
## -## use io based udelay function +## use TSC based udelay function ## -default CONFIG_UDELAY_IO=1 +default CONFIG_UDELAY_TSC=1 +default CONFIG_TSC_X86RDTSC_CALIBRATE_WITH_TIMER2=1
## ## Build code to export a programmable irq routing table
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