gigabyte/ga-b75m-d3h: Add new Intel mainboard

This is based on LENOVO X230 port. Board boots to linux via SATA.

Remaining Issues:

1. Native raminit sometimes fails with "timC write discovery failed"
   even without changing the ram configuration.
   I suggest altering the native raminit code so that it reboots
   if that message appears to give a chance for the boot process to recover.

2. VGA does not work.
   Native graphics initialization only supports LVDS and the
   VGA Option ROM still hangs when run in SeaBIOS

3. USB does not work.
   SeaBIOS/GRUB2 do not detect devices connected to USB ports

4. Sound needs corrected codec verb settings

Change-Id: Ib465a4824ef1a71ab6aa17bd40fc281215c6d44f
Signed-off-by: Damien Zammit <damien@zamaudio.com>
Reviewed-on: http://review.coreboot.org/7020
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>

1 files changed, 109 insertions, 0 deletions

diff --git a/src/mainboard/gigabyte/ga-b75m-d3h/mainboard_smi.c b/src/mainboard/gigabyte/ga-b75m-d3h/mainboard_smi.c
new file mode 100644
index 0000000000..9f8a29fa7d
--- /dev/null
+++ b/src/mainboard/gigabyte/ga-b75m-d3h/mainboard_smi.c
@@ -0,0 +1,109 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2008-2009 coresystems GmbH
+ * Copyright (C) 2014 Vladimir Serbinenko
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of
+ * the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#include <arch/io.h>
+#include <console/console.h>
+#include <cpu/x86/smm.h>
+#include <pc80/mc146818rtc.h>
+#include <delay.h>
+#include <southbridge/intel/bd82x6x/nvs.h>
+#include <southbridge/intel/bd82x6x/pch.h>
+#include <southbridge/intel/bd82x6x/me.h>
+#include <northbridge/intel/sandybridge/sandybridge.h>
+#include <cpu/intel/model_206ax/model_206ax.h>
+
+/* The southbridge SMI handler checks whether gnvs has a
+ * valid pointer before calling the trap handler
+ */
+extern global_nvs_t *gnvs;
+
+static void mainboard_smm_init(void)
+{
+	printk(BIOS_DEBUG, "initializing SMI\n");
+}
+
+int mainboard_io_trap_handler(int smif)
+{
+	static int smm_initialized;
+
+	if (!smm_initialized) {
+		mainboard_smm_init();
+		smm_initialized = 1;
+	}
+
+	switch (smif) {
+	default:
+		return 0;
+	}
+
+	/* On success, the IO Trap Handler returns 1
+	 * On failure, the IO Trap Handler returns a value != 1 */
+	return 1;
+}
+
+void mainboard_smi_gpi(u32 gpi_sts)
+{
+
+}
+
+static int mainboard_finalized = 0;
+
+int mainboard_smi_apmc(u8 data)
+{
+	u16 pmbase = pci_read_config16(PCI_DEV(0, 0x1f, 0), 0x40) & 0xfffc;
+
+	printk(BIOS_DEBUG, "%s: pmbase %04X, data %02X\n", __func__, pmbase,
+	       data);
+
+	if (!pmbase)
+		return 0;
+
+	switch (data) {
+	case APM_CNT_ACPI_ENABLE:
+		break;
+	case APM_CNT_ACPI_DISABLE:
+		break;
+	case APM_CNT_FINALIZE:
+		printk(BIOS_DEBUG, "APMC: FINALIZE\n");
+		if (mainboard_finalized) {
+			printk(BIOS_DEBUG, "APMC#: Already finalized\n");
+			return 0;
+		}
+
+		intel_me_finalize_smm();
+		intel_pch_finalize_smm();
+		intel_sandybridge_finalize_smm();
+		intel_model_206ax_finalize_smm();
+
+		mainboard_finalized = 1;
+		break;
+
+	default:
+		break;
+	}
+	return 0;
+}
+
+void mainboard_smi_sleep(u8 slp_typ)
+{
+
+}