diff options
| author | Tom Rini <trini@konsulko.com> | 2015-08-26 17:48:05 -0400 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2015-08-26 17:48:05 -0400 |
| commit | 79c884d7e449a63fa8f07b7495f8f9873355c48f (patch) | |
| tree | 19adcc1b9d3520a68937a1f5f81b06775c790d8a /arch/x86/cpu/qemu/acpi/hpet.asl | |
| parent | ad608a21f89bf7467059ed59d60b080aace7ef99 (diff) | |
| parent | f4b5db7c5309dd7f3ecc6369f3c1f41e8bfe93ae (diff) | |
| download | u-boot-imx-79c884d7e449a63fa8f07b7495f8f9873355c48f.zip u-boot-imx-79c884d7e449a63fa8f07b7495f8f9873355c48f.tar.gz u-boot-imx-79c884d7e449a63fa8f07b7495f8f9873355c48f.tar.bz2 | |
Merge git://git.denx.de/u-boot-x86
Diffstat (limited to 'arch/x86/cpu/qemu/acpi/hpet.asl')
| -rw-r--r-- | arch/x86/cpu/qemu/acpi/hpet.asl | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/x86/cpu/qemu/acpi/hpet.asl b/arch/x86/cpu/qemu/acpi/hpet.asl new file mode 100644 index 0000000..983151e --- /dev/null +++ b/arch/x86/cpu/qemu/acpi/hpet.asl @@ -0,0 +1,31 @@ +/* HPET */ + +Scope(\_SB) { + Device(HPET) { + Name(_HID, EISAID("PNP0103")) + Name(_UID, 0) + OperationRegion(HPTM, SystemMemory, 0xfed00000, 0x400) + Field(HPTM, DWordAcc, Lock, Preserve) { + VEND, 32, + PRD, 32, + } + Method(_STA, 0, NotSerialized) { + Store(VEND, Local0) + Store(PRD, Local1) + ShiftRight(Local0, 16, Local0) + If (LOr(LEqual(Local0, 0), LEqual(Local0, 0xffff))) { + Return (0x0) + } + If (LOr(LEqual(Local1, 0), LGreater(Local1, 100000000))) { + Return (0x0) + } + Return (0x0f) + } + Name(_CRS, ResourceTemplate() { + Memory32Fixed(ReadOnly, + 0xfed00000, /* Address Base */ + 0x00000400, /* Address Length */ + ) + }) + } +} |