diff options
Diffstat (limited to 'src/soc/intel/skylake/acpi/xhci.asl')
| -rw-r--r-- | src/soc/intel/skylake/acpi/xhci.asl | 152 |
1 files changed, 74 insertions, 78 deletions
diff --git a/src/soc/intel/skylake/acpi/xhci.asl b/src/soc/intel/skylake/acpi/xhci.asl index a23d78abd9..b5aa41292a 100644 --- a/src/soc/intel/skylake/acpi/xhci.asl +++ b/src/soc/intel/skylake/acpi/xhci.asl @@ -129,97 +129,93 @@ Device (XHCI) Method (_PS0, 0, Serialized) { - If (LEqual (^DVID, 0xFFFF)) { - Return - } - If (LOr (LEqual (^XMEM, 0xFFFF), LEqual (^XMEM, 0x0000))) { - Return - } - - /* Disable d3hot and SS link trunk clock gating */ - Store(Zero, ^D3HE) - Store(Zero, ^STGE) - - /* If device is in D3, set back to D0 */ - If (LEqual (^D0D3, 3)) { - Store (Zero, Local0) - Store (Local0, ^D0D3) - Store (^D0D3, Local0) - } - - /* Disable USB2 PHY SUS Well Power Gating */ - Store (Zero, ^UPSW) + If (!LEqual (^DVID, 0xFFFF)) { + If (!LOr (LEqual (^XMEM, 0xFFFF), LEqual (^XMEM, 0x0000))) { + + /* Disable d3hot and SS link trunk clock gating */ + Store(Zero, ^D3HE) + Store(Zero, ^STGE) + + /* If device is in D3, set back to D0 */ + If (LEqual (^D0D3, 3)) { + Store (Zero, Local0) + Store (Local0, ^D0D3) + Store (^D0D3, Local0) + } - /* - * Apply USB2 PHPY Power Gating workaround if needed. - */ - If (^^PMC.UWAB) { - /* Write to MTPMC to have PMC disable power gating */ - Store (1, ^^PMC.MPMC) - - /* Wait for PCH_PM_STS.MSG_FULL_STS to be 0 */ - Store (10, Local0) - While (^^PMC.PMFS) { - If (LNot (Local0)) { - Break + /* Disable USB2 PHY SUS Well Power Gating */ + Store (Zero, ^UPSW) + + /* + * Apply USB2 PHPY Power Gating workaround if needed. + */ + If (^^PMC.UWAB) { + /* Write to MTPMC to have PMC disable power gating */ + Store (1, ^^PMC.MPMC) + + /* Wait for PCH_PM_STS.MSG_FULL_STS to be 0 */ + Store (10, Local0) + While (^^PMC.PMFS) { + If (LNot (Local0)) { + Break + } + Decrement (Local0) + Sleep (10) + } } - Decrement (Local0) - Sleep (10) } } } Method (_PS3, 0, Serialized) { - If (LEqual (^DVID, 0xFFFF)) { - Return - } - If (LOr (LEqual (^XMEM, 0xFFFF), LEqual (^XMEM, 0x0000))) { - Return - } - - /* Clear PME Status */ - Store (1, ^PMES) + If (!LEqual (^DVID, 0xFFFF)) { + If (!LOr (LEqual (^XMEM, 0xFFFF), LEqual (^XMEM, 0x0000))) { - /* Enable PME */ - Store (1, ^PMEE) - - /* If device is in D3, set back to D0 */ - If (LEqual (^D0D3, 3)) { - Store (Zero, Local0) - Store (Local0, ^D0D3) - Store (^D0D3, Local0) - } + /* Clear PME Status */ + Store (1, ^PMES) - /* Enable USB2 PHY SUS Well Power Gating in D0/D0i2/D0i3/D3 */ - Store (3, ^UPSW) + /* Enable PME */ + Store (1, ^PMEE) - /* Enable d3hot and SS link trunk clock gating */ - Store(One, ^D3HE) - Store(One, ^STGE) - - /* Now put device in D3 */ - Store (3, Local0) - Store (Local0, ^D0D3) - Store (^D0D3, Local0) + /* If device is in D3, set back to D0 */ + If (LEqual (^D0D3, 3)) { + Store (Zero, Local0) + Store (Local0, ^D0D3) + Store (^D0D3, Local0) + } - /* - * Apply USB2 PHPY Power Gating workaround if needed. - * This code assumes XDCI is disabled, if it is enabled - * then this must also check if it is in D3 state too. - */ - If (^^PMC.UWAB) { - /* Write to MTPMC to have PMC enable power gating */ - Store (3, ^^PMC.MPMC) - - /* Wait for PCH_PM_STS.MSG_FULL_STS to be 0 */ - Store (10, Local0) - While (^^PMC.PMFS) { - If (LNot (Local0)) { - Break + /* Enable USB2 PHY SUS Well Power Gating in D0/D0i2/D0i3/D3 */ + Store (3, ^UPSW) + + /* Enable d3hot and SS link trunk clock gating */ + Store(One, ^D3HE) + Store(One, ^STGE) + + /* Now put device in D3 */ + Store (3, Local0) + Store (Local0, ^D0D3) + Store (^D0D3, Local0) + + /* + * Apply USB2 PHPY Power Gating workaround if needed. + * This code assumes XDCI is disabled, if it is enabled + * then this must also check if it is in D3 state too. + */ + If (^^PMC.UWAB) { + /* Write to MTPMC to have PMC enable power gating */ + Store (3, ^^PMC.MPMC) + + /* Wait for PCH_PM_STS.MSG_FULL_STS to be 0 */ + Store (10, Local0) + While (^^PMC.PMFS) { + If (LNot (Local0)) { + Break + } + Decrement (Local0) + Sleep (10) + } } - Decrement (Local0) - Sleep (10) } } } |