diff options
| author | Matt DeVillier <matt.devillier@gmail.com> | 2018-03-11 22:44:41 -0500 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2018-03-14 11:16:41 +0000 |
| commit | be33a674bb5d7081d77077d9d486bcc45b2624cd (patch) | |
| tree | 3a4a5699770cda85e7a99d8614c63f63517532f3 /src/soc/intel/baytrail/acpi | |
| parent | 681ef51d731617a0a4d5b604d561acdecb9c9cfa (diff) | |
soc/intel/baytrail: add support for Intel GMA OpRegion
Add global/ACPI nvs variables required for IGD OpRegion.
Add functions necessary to generate ACPI OpRegion, save the
table address in ASLB, and restore table address upon S3 resume.
Implementation largely based on existing Broadwell code.
Test: boot Windows 10 on google/squawks with Tianocore payload and
GOP display init, observe display driver loaded and functional,
display not black screen when resuming from S3 suspend.
Change-Id: Iab15e1de2bb7d8fbec2e8705a621cfca0f255d4b
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/25102
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Diffstat (limited to 'src/soc/intel/baytrail/acpi')
| -rw-r--r-- | src/soc/intel/baytrail/acpi/globalnvs.asl | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/soc/intel/baytrail/acpi/globalnvs.asl b/src/soc/intel/baytrail/acpi/globalnvs.asl index 7218f67249..f33fcf6ae1 100644 --- a/src/soc/intel/baytrail/acpi/globalnvs.asl +++ b/src/soc/intel/baytrail/acpi/globalnvs.asl @@ -67,6 +67,48 @@ Field (GNVS, ByteAcc, NoLock, Preserve) TOLM, 32, // 0x34 - Top of Low Memory CBMC, 32, // 0x38 - coreboot mem console pointer + /* IGD OpRegion */ + Offset (0xb4), + ASLB, 32, // 0xb4 - IGD OpRegion Base Address + IBTT, 8, // 0xb8 - IGD boot panel device + IPAT, 8, // 0xb9 - IGD panel type cmos option + ITVF, 8, // 0xba - IGD TV format cmos option + ITVM, 8, // 0xbb - IGD TV minor format option + IPSC, 8, // 0xbc - IGD panel scaling + IBLC, 8, // 0xbd - IGD BLC config + IBIA, 8, // 0xbe - IGD BIA config + ISSC, 8, // 0xbf - IGD SSC config + I409, 8, // 0xc0 - IGD 0409 modified settings + I509, 8, // 0xc1 - IGD 0509 modified settings + I609, 8, // 0xc2 - IGD 0609 modified settings + I709, 8, // 0xc3 - IGD 0709 modified settings + IDMM, 8, // 0xc4 - IGD Power conservation feature + IDMS, 8, // 0xc5 - IGD DVMT memory size + IF1E, 8, // 0xc6 - IGD function 1 enable + HVCO, 8, // 0xc7 - IGD HPLL VCO + NXD1, 32, // 0xc8 - IGD _DGS next DID1 + NXD2, 32, // 0xcc - IGD _DGS next DID2 + NXD3, 32, // 0xd0 - IGD _DGS next DID3 + NXD4, 32, // 0xd4 - IGD _DGS next DID4 + NXD5, 32, // 0xd8 - IGD _DGS next DID5 + NXD6, 32, // 0xdc - IGD _DGS next DID6 + NXD7, 32, // 0xe0 - IGD _DGS next DID7 + NXD8, 32, // 0xe4 - IGD _DGS next DID8 + + ISCI, 8, // 0xe8 - IGD SMI/SCI mode (0: SCI) + PAVP, 8, // 0xe9 - IGD PAVP data + Offset (0xeb), + OSCC, 8, // 0xeb - PCIe OSC control + NPCE, 8, // 0xec - native pcie support + PLFL, 8, // 0xed - platform flavor + BREV, 8, // 0xee - board revision + DPBM, 8, // 0xef - digital port b mode + DPCM, 8, // 0xf0 - digital port c mode + DPDM, 8, // 0xf1 - digital port d mode + ALFP, 8, // 0xf2 - active lfp + IMON, 8, // 0xf3 - current graphics turbo imon value + MMIO, 8, // 0xf4 - 64bit mmio support + /* ChromeOS specific */ Offset (0x100), #include <vendorcode/google/chromeos/acpi/gnvs.asl> |