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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)
This commit is contained in:
Duncan Laurie 2013-12-13 16:43:11 -08:00 committed by Kyösti Mälkki
parent 73c0a05bc7
commit 2e65796481
1 changed files with 21 additions and 0 deletions
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21
src/soc/intel/baytrail/acpi/southcluster.asl
View File

@ -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"