haswell: Move to per-device ACPI

Change-Id: Ic724dcf516d9cb78e89698da603151a32d24e978
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/6814
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>

3 files changed, 65 insertions, 2 deletions

diff --git a/src/southbridge/intel/lynxpoint/acpi/globalnvs.asl b/src/southbridge/intel/lynxpoint/acpi/globalnvs.asl
index ef05dca3c2..8ebbe90513 100644
--- a/src/southbridge/intel/lynxpoint/acpi/globalnvs.asl
+++ b/src/southbridge/intel/lynxpoint/acpi/globalnvs.asl
@@ -31,8 +31,8 @@ Name(\DSEN, 1)		// Display Output Switching Enable
  * we have to fix it up in coreboot's ACPI creation phase.
  */
 
-
-OperationRegion (GNVS, SystemMemory, 0xC0DEBABE, 0xf00)
+External(NVSA)
+OperationRegion (GNVS, SystemMemory, NVSA, 0xf00)
 Field (GNVS, ByteAcc, NoLock, Preserve)
 {
 	/* Miscellaneous */
diff --git a/src/southbridge/intel/lynxpoint/lpc.c b/src/southbridge/intel/lynxpoint/lpc.c
index 05b4d601af..d1a7203041 100644
--- a/src/southbridge/intel/lynxpoint/lpc.c
+++ b/src/southbridge/intel/lynxpoint/lpc.c
@@ -36,6 +36,8 @@
 #include <string.h>
 #include "nvs.h"
 #include "pch.h"
+#include <arch/acpigen.h>
+#include <cbmem.h>
 
 #define NMI_OFF	0
 
@@ -741,6 +743,63 @@ static void set_subsystem(device_t dev, unsigned vendor, unsigned device)
 	}
 }
 
+static unsigned long southbridge_fill_ssdt(unsigned long current, const char *oem_table_id)
+{
+	global_nvs_t *gnvs = cbmem_add (CBMEM_ID_ACPI_GNVS, sizeof (*gnvs));
+
+	if (gnvs) {
+		int scopelen;
+		acpi_create_gnvs(gnvs);
+		acpi_save_gnvs((unsigned long)gnvs);
+		/* And tell SMI about it */
+		smm_setup_structures(gnvs, NULL, NULL);
+
+		/* Add it to SSDT.  */
+		scopelen = acpigen_write_scope("\\");
+		scopelen += acpigen_write_name_dword("NVSA", (u32) gnvs);
+		acpigen_patch_len(scopelen - 1);
+	}
+
+	return (unsigned long) (acpigen_get_current());
+}
+
+#define ALIGN_CURRENT current = (ALIGN(current, 16))
+static unsigned long southbridge_write_acpi_tables(unsigned long start, struct acpi_rsdp *rsdp)
+{
+	unsigned long current;
+	acpi_hpet_t *hpet;
+	acpi_header_t *ssdt;
+
+	current = start;
+
+	/* Align ACPI tables to 16byte */
+	ALIGN_CURRENT;
+
+	/*
+	 * We explicitly add these tables later on:
+	 */
+	printk(BIOS_DEBUG, "ACPI:    * HPET\n");
+
+	hpet = (acpi_hpet_t *) current;
+	current += sizeof(acpi_hpet_t);
+	ALIGN_CURRENT;
+	acpi_create_intel_hpet(hpet);
+	acpi_add_table(rsdp, hpet);
+
+	ALIGN_CURRENT;
+
+	printk(BIOS_DEBUG, "ACPI:     * SSDT2\n");
+	ssdt = (acpi_header_t *)current;
+	acpi_create_serialio_ssdt(ssdt);
+	current += ssdt->length;
+	acpi_add_table(rsdp, ssdt);
+	ALIGN_CURRENT;
+
+	printk(BIOS_DEBUG, "current = %lx\n", current);
+	return current;
+}
+
+
 static struct pci_operations pci_ops = {
 	.set_subsystem = set_subsystem,
 };
@@ -749,6 +808,8 @@ static struct device_operations device_ops = {
 	.read_resources		= pch_lpc_read_resources,
 	.set_resources		= pci_dev_set_resources,
 	.enable_resources	= pci_dev_enable_resources,
+	.acpi_fill_ssdt_generator = southbridge_fill_ssdt,
+	.write_acpi_tables      = southbridge_write_acpi_tables,
 	.init			= lpc_init,
 	.enable			= pch_lpc_enable,
 	.scan_bus		= scan_static_bus,
diff --git a/src/southbridge/intel/lynxpoint/nvs.h b/src/southbridge/intel/lynxpoint/nvs.h
index 48010ffeb7..81b23212c3 100644
--- a/src/southbridge/intel/lynxpoint/nvs.h
+++ b/src/southbridge/intel/lynxpoint/nvs.h
@@ -134,3 +134,5 @@ typedef struct {
 /* Used in SMM to find the ACPI GNVS address */
 global_nvs_t *smm_get_gnvs(void);
 #endif
+
+void acpi_create_gnvs(global_nvs_t * gnvs);