diff options
| author | Edward O'Callaghan <quasisec@google.com> | 2020-06-30 13:39:01 +1000 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-07-01 05:21:09 +0000 |
| commit | ed31024d1d6720b14d937bc4e06c4db8f7e383a5 (patch) | |
| tree | d6428186f99cc87c316511ea5c3f2a1db0c18848 /src/soc/intel/skylake/acpi | |
| parent | c47e3147539a5e91a95a83ba2cd10e9b98039b24 (diff) | |
soc/intel/skylake: Update ASL syntax in xhci.asl
Use some defines as well for clarity.
Change-Id: I83204a1a39534066a5f32f6e33a1bed0c827392f
Signed-off-by: Edward O'Callaghan <quasisec@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42898
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/intel/skylake/acpi')
| -rw-r--r-- | src/soc/intel/skylake/acpi/xhci.asl | 34 |
1 files changed, 19 insertions, 15 deletions
diff --git a/src/soc/intel/skylake/acpi/xhci.asl b/src/soc/intel/skylake/acpi/xhci.asl index 5a877d4bb9..2f5d8b2200 100644 --- a/src/soc/intel/skylake/acpi/xhci.asl +++ b/src/soc/intel/skylake/acpi/xhci.asl @@ -1,5 +1,11 @@ /* SPDX-License-Identifier: GPL-2.0-only */ +#define PORTSCN_OFFSET 0x480 +#define PORTSCXUSB3_OFFSET 0x540 + +#define WAKE_ON_CONNECT_DISCONNECT_ENABLE 0x6000000 +#define RO_BITS_OFF_MASK ~0x80FE0012 + /* * USB Port Wake Enable (UPWE) on usb attach/detach * Arg0 - Port Number @@ -8,8 +14,7 @@ */ Method (UPWE, 3, Serialized) { - /* Local0 = Arg1 + ((Arg0 - 1) * 0x10) */ - Add (Arg1, Multiply (Subtract (Arg0, 1), 0x10), Local0) + Local0 = Arg1 + ((Arg0 - 1) * 0x10) /* Map ((XMEM << 16) + Local0 in PSCR */ OperationRegion (PSCR, SystemMemory, @@ -18,16 +23,16 @@ Method (UPWE, 3, Serialized) { PSCT, 32, } - Store(PSCT, Local0) + Local0 = PSCT /* * And port status/control reg with RO and RWS bits * RO bits: 0, 2:3, 10:13, 24, 28:30 * RWS bits: 5:9, 14:16, 25:27 */ - And (Local0, ~0x80FE0012, Local0) + Local0 = Local0 & RO_BITS_OFF_MASK /* Set WCE and WDE bits */ - Or (Local0, 0x6000000, Local0) - Store(Local0, PSCT) + Local0 = Local0 | WAKE_ON_CONNECT_DISCONNECT_ENABLE + PSCT = Local0 } /* @@ -38,20 +43,19 @@ Method (UPWE, 3, Serialized) */ Method (UWES, 3, Serialized) { - Store (Arg0, Local0) + Local0 = Arg0 While (One) { FindSetRightBit (Local0, Local1) - If (LEqual (Local1, Zero)) { + If (Local1 == Zero) { Break } UPWE (Local1, Arg1, Arg2) /* * Clear the lowest set bit in Local0 since it was * processed. - * Local0 = Local0 & (Local0 - 1) */ - And (Local0, Subtract (Local0, 1), Local0) + Local0 = Local0 & (Local0 - 1) } } @@ -65,9 +69,9 @@ Device (XHCI) Method (_DSW, 3) { - Store (Arg0, PMEE) - UWES (And (\U2WE, 0x3FF), 0x480, XMEM) - UWES (And (\U3WE, 0x3F), 0x540, XMEM) + PMEE = Arg0 + UWES ((\U2WE & 0x3FF), PORTSCN_OFFSET, XMEM) + UWES ((\U3WE & 0x3F ), PORTSCXUSB3_OFFSET, XMEM) } Name (_S3D, 3) /* D3 supported in S3 */ @@ -221,11 +225,11 @@ Device (XHCI) // REV: Revision 0x02 for ACPI 5.0 CreateField (DerefOf (Index (PCKG, Zero)), Zero, 0x07, REV) - Store (0x02, REV) + REV = 0x02 // VISI: Port visibility to user per port CreateField (DerefOf (Index (PCKG, Zero)), 0x40, One, VISI) - Store (Arg0, VISI) + VISI = Arg0 Return (PCKG) } |