New patch to review for coreboot: de46a9f AMD Hudson: enable IMC fan control using ACPI code

[WANG Siyuan]

WANG Siyuan ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/7165

-gerrit

commit de46a9fe1686ad7a6a9171f67928c02ab3b23a2c
Author: WANG Siyuan 
Date:   Wed Oct 22 13:47:18 2014 +0800

AMD Hudson: enable IMC fan control using ACPI code

IMC fan control should be enabled after OS launched.
    I have tested on OliveHill and Parmer with Windows 7 and Ubuntu 13.10.

Change-Id: I16d6ff6b1272d16b840e803e0a95f6e363c79704
    Signed-off-by: WANG Siyuan 
    Signed-off-by: WANG Siyuan 
---
 src/southbridge/amd/agesa/hudson/Kconfig      | 4 ++++
 src/southbridge/amd/agesa/hudson/acpi/fch.asl | 4 ++--
 src/southbridge/amd/agesa/hudson/hudson.c     | 2 ++
 3 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/southbridge/amd/agesa/hudson/Kconfig b/src/southbridge/amd/agesa/hudson/Kconfig
index 9ff6ef1..a2a43a4 100644
--- a/src/southbridge/amd/agesa/hudson/Kconfig
+++ b/src/southbridge/amd/agesa/hudson/Kconfig
@@ -244,6 +244,10 @@ config HUDSON_LEGACY_FREE
      Select y if there is no keyboard controller in the system.
      This sets variables in AGESA and ACPI.

+config ACPI_ENABLE_THERMAL_ZONE
+	bool
+	default y
+
 endif # SOUTHBRIDGE_AMD_AGESA_HUDSON || SOUTHBRIDGE_AMD_AGESA_YANGTZE || SOUTHBRIDGE_AMD_AGESA_AVALON

if SOUTHBRIDGE_AMD_AGESA_YANGTZE || SOUTHBRIDGE_AMD_AGESA_AVALON
diff --git a/src/southbridge/amd/agesa/hudson/acpi/fch.asl b/src/southbridge/amd/agesa/hudson/acpi/fch.asl
index 4ffd19f..f70ad1c 100644
--- a/src/southbridge/amd/agesa/hudson/acpi/fch.asl
+++ b/src/southbridge/amd/agesa/hudson/acpi/fch.asl
@@ -180,8 +180,8 @@ Method(_INI, 0) {
    OSFL()

/* TODO: It is unstable. */
-	//#include "acpi/AmdImc.asl" /* Hudson IMC function */
-	//ITZE() /* enable IMC Fan Control*/
+	#include "acpi/AmdImc.asl" /* Hudson IMC function */
+	ITZE() /* enable IMC Fan Control*/
 } /* End Method(_SB._INI) */

Method(OSFL, 0){
diff --git a/src/southbridge/amd/agesa/hudson/hudson.c b/src/southbridge/amd/agesa/hudson/hudson.c
index f60dddb..3b57221 100644
--- a/src/southbridge/amd/agesa/hudson/hudson.c
+++ b/src/southbridge/amd/agesa/hudson/hudson.c
@@ -164,10 +164,12 @@ static void hudson_init(void *chip_info)

static void hudson_final(void *chip_info)
 {
+#if !CONFIG_ACPI_ENABLE_THERMAL_ZONE
 #if IS_ENABLED(CONFIG_HUDSON_IMC_FWM)
    /* AMD AGESA does not enable thermal zone, so we enable it here. */
    enable_imc_thermal_zone();
 #endif
+#endif
 }

struct chip_operations southbridge_amd_agesa_hudson_ops = {