diff options
Diffstat (limited to 'src/soc/intel/apollolake/acpi/scs.asl')
| -rw-r--r-- | src/soc/intel/apollolake/acpi/scs.asl | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/src/soc/intel/apollolake/acpi/scs.asl b/src/soc/intel/apollolake/acpi/scs.asl index bb8b684ef3..5933d522c5 100644 --- a/src/soc/intel/apollolake/acpi/scs.asl +++ b/src/soc/intel/apollolake/acpi/scs.asl @@ -115,14 +115,32 @@ Scope (\_SB.PCI0) { Device (SDCD) { Name (_ADR, 0x001B0000) + Name (_S0W, 4) /* _S0W: S0 Device Wake State */ + Name (SCD0, 0) /* Store SD_CD DW0 address */ + + /* Set the host ownership of sdcard cd during kernel boot */ + Method (_INI, 0) + { + /* Check SDCard CD port is valid */ + If (LAnd (LNotEqual (\SCDP, 0), LNotEqual (\SCDO, 0) )) + { + /* Store DW0 address of SD_CD */ + Store (GDW0 (\SCDP, \SCDO), SCD0) + /* Get the current SD_CD ownership */ + Store (\_SB.GHO (\SCDP, \SCDO), Local0) + /* Set host ownership as GPIO in HOSTSW_OWN reg */ + Or (Local0, ShiftLeft (1, Mod (\SCDO, 32)), Local0) + \_SB.SHO (\SCDP, \SCDO, Local0) + } + } Method (_PS0, 0, NotSerialized) { - /* Check SDCard CD pin address is valid */ - If (LNotEqual (SCD0, 0)) + /* Check SDCard CD port is valid */ + If (LAnd (LNotEqual (\SCDP, 0), LNotEqual (\SCDO, 0) )) { /* Store DW0 into local0 to get rxstate of GPIO */ - Store (\_SB.GPC0 (\SCD0), Local0) + Store (\_SB.GPC0 (SCD0), Local0) /* Extract rxstate [bit 1] of sdcard card detect pin */ And (Local0, PAD_CFG0_RX_STATE, Local0) /* If the sdcard is present, rxstate is low. |