Hudson: Changes to support agesa/hudson for legacy free

Add Kconfig option for Legacy free and hook it into the parmer
AGESA initialization as well as the FADT code. This should really
be done inside the southbridge wrapper and not in the mainboard,
but for now the code to attach it to is inside the mainboard.

Update Kconfig for parmer and thatcher to default to legacy free.

Change-Id: Ib899bd02ddc5506caae4aca2c589cc2526638cb8
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: http://review.coreboot.org/2157
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>

src/southbridge/amd/agesa/hudson/Kconfig

@@ -213,3 +213,9 @@ config S3_VOLATILE_POS
 	  non-volitile storage at cold boot stage.
 
 endif
+
+config HUDSON_LEGACY_FREE
+	bool "System is legacy free"
+	help
+	  Select y if there is no keyboard controller in the system.
+	  This sets variables in AGESA and ACPI.

src/southbridge/amd/agesa/hudson/fadt.c

@@ -28,7 +28,11 @@
 #include <device/device.h>
 #include "hudson.h"
 
-#define FADT_BOOT_ARCH (ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042)
+#if CONFIG_HUDSON_LEGACY_FREE
+	#define FADT_BOOT_ARCH ACPI_FADT_LEGACY_FREE
+#else
+	#define FADT_BOOT_ARCH (ACPI_FADT_LEGACY_DEVICES | ACPI_FADT_8042)
+#endif
 
 #ifndef FADT_PM_PROFILE
 	#define FADT_PM_PROFILE PM_UNSPECIFIED
@@ -86,7 +90,7 @@ void acpi_create_fadt(acpi_fadt_t * fadt, acpi_facs_t * facs, void *dsdt)
 					* index 60-6B to decode ACPI I/O address.
 					* AcpiSmiEn & SmiCmdEn*/
 	/* RTC_En_En, TMR_En_En, GBL_EN_EN */
-	outl(0x1, ACPI_PM1_CNT_BLK);		  /* set SCI_EN */
+	outl(0x1, ACPI_PM1_CNT_BLK);			/* set SCI_EN */
 	fadt->pm1a_evt_blk = ACPI_PM_EVT_BLK;
 	fadt->pm1b_evt_blk = 0x0000;
 	fadt->pm1a_cnt_blk = ACPI_PM1_CNT_BLK;