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sb/intel/bd82x6x: Use HPTS() for HPET visibility

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Platforms with bd82x6x do not initialise OSYS, so HPET is
always hidden.

The two boards lenovo/x201 and packardbell/ms2290 using
sb/intel/ibexpeak but still including <bd8x62x/acpi/lpc.asl>
initialised OSYS using _OSI() method and showed HPET selectively.

Change-Id: I02fffd439be2a5a9d22afd67e68abce888361214
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49486
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Kyösti Mälkki 2021-01-15 11:51:02 +02:00
parent 4797bb9be0
commit 505320375e
1 changed files with 1 additions and 11 deletions
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12
src/southbridge/intel/bd82x6x/acpi/lpc.asl
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@ -83,17 +83,7 @@ Device (LPCB)
Method (_STA, 0) // Device Status
{
If (HPTE) {
// Note: Ancient versions of Windows don't want
// to see the HPET in order to work right
If (LGreaterEqual(OSYS, 2001)) {
Return (0xf) // Enable and show device
} Else {
Return (0xb) // Enable and don't show device
}
}
Return (0x0) // Not enabled, don't show.
Return (\HPTS(HPTE))
}
Method (_CRS, 0, Serialized) // Current resources