Aaron Durbin (adurbin@google.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/5021
-gerrit
commit 22b7e9c05f7e7c47f192da35f95d58360e6aa3b7 Author: Duncan Laurie dlaurie@chromium.org Date: Fri Dec 13 16:43:11 2013 -0800
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 --- src/soc/intel/baytrail/acpi/southcluster.asl | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+)
diff --git a/src/soc/intel/baytrail/acpi/southcluster.asl b/src/soc/intel/baytrail/acpi/southcluster.asl index cf27a24..ced1618 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"