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| author | Vladimir Serbinenko <phcoder@gmail.com> | 2013-06-07 01:34:06 +0200 |
|---|---|---|
| committer | Ronald G. Minnich <rminnich@gmail.com> | 2013-06-12 05:29:51 +0200 |
| commit | 26419285bf6643776d5ad6534db7d0422758efb2 (patch) | |
| tree | b854e11a926e555a4ade85950846b8cdea0ce56b /src/ec/lenovo | |
| parent | fe50d0bcfe96210413d9c2372d3daa779892b520 (diff) | |
| download | coreboot-26419285bf6643776d5ad6534db7d0422758efb2.tar.xz | |
Avoid tripping overheat alarm on X201 before ME boots
Until ME boots (which takes seconds on X201) the reported temperature
is 128 °C which triggers Linux overheat alarm which shuts down.
Pretend temperature is 40°C until ME boots.
Change-Id: Ia49fa03c6eb27f539a23711f2c8ebfde72b1dc18
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/3404
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src/ec/lenovo')
| -rw-r--r-- | src/ec/lenovo/h8/acpi/thermal.asl | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/ec/lenovo/h8/acpi/thermal.asl b/src/ec/lenovo/h8/acpi/thermal.asl index 35b6f145b5..83d66c6592 100644 --- a/src/ec/lenovo/h8/acpi/thermal.asl +++ b/src/ec/lenovo/h8/acpi/thermal.asl @@ -1,5 +1,9 @@ Scope(\_TZ) { +#if defined (CONFIG_BOARD_LENOVO_X201) && CONFIG_BOARD_LENOVO_X201 + Name (MEBT, 0) +#endif + Method(C2K, 1, NotSerialized) { Multiply(Arg0, 10, Local0) @@ -20,6 +24,13 @@ Scope(\_TZ) Return (C2K(127)) } Method(_TMP) { +#if defined (CONFIG_BOARD_LENOVO_X201) && CONFIG_BOARD_LENOVO_X201 + /* Avoid tripping alarm if ME isn't booted at all yet */ + If (LAnd (LNot (MEBT), LEqual (\_SB.PCI0.LPCB.EC.TMP0, 128))) { + Return (C2K(40)) + } + Store (1, MEBT) +#endif Return (C2K(\_SB.PCI0.LPCB.EC.TMP0)) } } |