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| author | Duncan Laurie <dlaurie@chromium.org> | 2013-12-13 16:43:11 -0800 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2014-05-12 22:10:18 +0200 |
| commit | 2e657964814b95de64406c50d08fc997f1c93887 (patch) | |
| tree | 7776e87f035b8790b4b51e3b23e97a33d0bf3d55 /src/soc | |
| parent | 73c0a05bc704659fcd1c70cc5d97e134de54c8f3 (diff) | |
| download | coreboot-2e657964814b95de64406c50d08fc997f1c93887.tar.xz | |
baytrail: Expose IOSF as ACPI object
The kernel iosf driver uses HID INT33BD to probe and
be provided the 12 bytes in PCI for access.
BUG=chrome-os-partner:17279
BRANCH=none
TEST=build and boot on rambi, load iosf_mbi driver and
verify that it gets address 0xe00000d0
Change-Id: I865eafe664f00f21d1ebb967c291083830d895b9
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/180098
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/5021
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Tested-by: build bot (Jenkins)
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/intel/baytrail/acpi/southcluster.asl | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/soc/intel/baytrail/acpi/southcluster.asl b/src/soc/intel/baytrail/acpi/southcluster.asl index cf27a2420a..ced161876d 100644 --- a/src/soc/intel/baytrail/acpi/southcluster.asl +++ b/src/soc/intel/baytrail/acpi/southcluster.asl @@ -228,6 +228,27 @@ Method (_OSC, 4) } } +/* IOSF MBI Interface for kernel access */ +Device (IOSF) +{ + Name (_HID, "INT33BD") + Name (_CID, "INT33BD") + Name (_UID, 1) + + Name (RBUF, ResourceTemplate () + { + /* MCR / MDR / MCRX */ + Memory32Fixed (ReadWrite, 0, 12, RBAR) + }) + + Method (_CRS) + { + CreateDwordField (^RBUF, ^RBAR._BAS, RBAS) + Store (Add (MCFG_BASE_ADDRESS, 0xD0), RBAS) + Return (^RBUF) + } +} + // LPC Bridge 0:1f.0 #include "lpc.asl" |