diff options
| author | Tobias Diedrich <ranma+coreboot@tdiedrich.de> | 2010-11-29 20:40:33 +0000 |
|---|---|---|
| committer | Tobias Diedrich <ranma@tdiedrich.de> | 2010-11-29 20:40:33 +0000 |
| commit | ca6d8084dde1e60cb0bef3bf6cb502a95efbf965 (patch) | |
| tree | 1471a2e267949b453efab213462ea262d7fbc145 /src/mainboard/asus | |
| parent | b97030d706987a466751eac9c29d9f26e68a9683 (diff) | |
Tobias Diedrich wrote:
> Stefan Reinauer wrote:
> > The specified IO port is most likely wrong. As the comment mentions, the
> > SSDT is a good place for that. A preprocessor define used both in the
> > CPU init code and in the asl would solve the problem without an SSDT.
> > For some info on CPU SSDT creation on intel check out
> > src/cpu/intel/speedstep/acpi.c
>
> The IO port is ok (and I wrote the comment myself ;)):
> DEFAULT_PMBASE is 0xe400
> PCNTRL reg offset is 0x10
>
> Using the preprocessor will probably work too if iasl can do simple
> arithmetic (likely yes), I'll look into that.
BTW, my first idea was to use an acpi method that looks up pmbase in
the pci cfg space, but when I define a method like this:
Method(TEST, 2)
{
Return (Add(Arg0, Arg1))
}
I get:
|build/mainboard/asus/p2b/dsdt.ramstage.asl 9: Processor (CPU0,
|0x01, TEST(0xe400, 0x10), 0x06) {}
|Error 4096 - syntax error, unexpected PARSEOP_NAMESEG,
|expecting ')' ^
While using the builtin Add() directly works.
Signed-off-by: Tobias Diedrich <ranma+coreboot@tdiedrich.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6132 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/mainboard/asus')
| -rw-r--r-- | src/mainboard/asus/p2b/dsdt.asl | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/mainboard/asus/p2b/dsdt.asl b/src/mainboard/asus/p2b/dsdt.asl index 15c39d2116..7160054bf1 100644 --- a/src/mainboard/asus/p2b/dsdt.asl +++ b/src/mainboard/asus/p2b/dsdt.asl @@ -17,14 +17,17 @@ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ +#include "southbridge/intel/i82371eb/i82371eb.h" + DefinitionBlock ("DSDT.aml", "DSDT", 2, "CORE ", "COREBOOT", 1) { /* Define the main processor.*/ Scope (\_PR) { - /* Looks like the P_CNT field can't be a method or name - * and has to be hardcoded to 0xe410 or generated in SSDT */ - Processor (CPU0, 0x01, 0xe410, 0x06) {} + /* Looks like the P_CNT field can't be a name or method (except + * builtins like Add()) and has to be hardcoded or generated + * into SSDT */ + Processor (CPU0, 0x01, Add(DEFAULT_PMBASE, PCNTRL), 0x06) {} } /* For now only define 2 power states: |