[coreboot-gerrit] New patch to review for coreboot: asrock/e350m1: Remove unused smbus.asl

[Tobias Diedrich (ranma+coreboot@tdiedrich.de)]

Tobias Diedrich (ranma+coreboot at tdiedrich.de) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/10548

-gerrit

commit 4bb398bda0a8e9ba8a66c82bce9a9f10b60b662b
Author: Tobias Diedrich <ranma+coreboot at tdiedrich.de>
Date:   Sun Jun 14 21:22:49 2015 +0200

    asrock/e350m1: Remove unused smbus.asl
    
    The smbus.asl operation regions prevent the Linux i2c driver (i2c_piix4)
    for this chipset from claiming the ioport ranges and thus it fails to
    load.
    
    The methods defined in smbus.asl are not used in the DSDT and also don't
    exist in the Vendorbios DSDT.
    
    In particular due to the following check in i2c-piix4.c will fail unless
    acpi_enforce_resources=no is explicitly set on the Linux kernel
    parameters:
      if (acpi_check_region(piix4_smba, SMBIOSIZE, piix4_driver.name))
              return -ENODEV;
    
    Depending on kernel options the only error message printed is
    
      ACPI Warning: SystemIO range 0x0000000000000B00-0x0000000000000B07
      conflicts with OpRegion 0x0000000000000B00-0x0000000000000B0B (\SMB0)
      (20150410/utaddress-254)
      ACPI: If an ACPI driver is available for this device, you should use
      it instead of the native driver
    
    However since it does not implement a standard interface there is no
    native ACPI driver for smbus.asl.
    
    Change-Id: I05b1993e1bc5e7a1cb25c730abbb6e729487d75d
    Signed-off-by: Tobias Diedrich <ranma+coreboot at tdiedrich.de>
---
 src/mainboard/asrock/e350m1/dsdt.asl | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/mainboard/asrock/e350m1/dsdt.asl b/src/mainboard/asrock/e350m1/dsdt.asl
index 6dcf0a6..eb0946e 100644
--- a/src/mainboard/asrock/e350m1/dsdt.asl
+++ b/src/mainboard/asrock/e350m1/dsdt.asl
@@ -57,7 +57,6 @@ DefinitionBlock (
 	#include "acpi/sleep.asl"
 
 	#include "acpi/gpe.asl"
-	#include <southbridge/amd/cimx/sb800/acpi/smbus.asl>
 	#include "acpi/thermal.asl"
 }
 /* End of ASL file */