fsp_baytrail: Add the FSP version of Intel's Bay Trail-I chip

While similar to the Bay Trail-M/D code based on the MRC, there are
many differences as well:
- Obviously, uses the FSP instead of the MRC binaries.
- FSP does additional hardware setup, so coreboot doesn't need to.
- Different microcode & microcode loading method
- Uses the cache_as_ram.inc from the FSP Driver
- Various other changes in support of the FSP
Additional changes that don't have to to with the FSP vs MRC:
- Updated IRQ Routing
- Different FADT implementation.
This was validated with FSP:
BAYTRAIL_FSP_GOLD_002_10-JANUARY-2014.fd
SHA256: d29eefbb33454bd5314bfaa38fb055d592a757de7b348ed7096cd8c2d65908a5
MD5: 9360cd915f0d3e4116bbc782233d7b91

Change-Id: Iadadf8cd6cf444ba840e0f76d3aed7825cd7aee4
Signed-off-by: Martin Roth <gaumless@gmail.com>
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: http://review.coreboot.org/5791
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

1 files changed, 116 insertions, 0 deletions

diff --git a/src/soc/intel/fsp_baytrail/chip.c b/src/soc/intel/fsp_baytrail/chip.c
new file mode 100644
index 0000000000..839e8dc1a4
--- /dev/null
+++ b/src/soc/intel/fsp_baytrail/chip.c
@@ -0,0 +1,116 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 Google Inc.
+ *
+ * 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 <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <baytrail/pci_devs.h>
+#include <baytrail/ramstage.h>
+#include <drivers/intel/fsp/fsp_util.h>
+#include "chip.h"
+
+static void pci_domain_set_resources(device_t dev)
+{
+	assign_resources(dev->link_list);
+}
+
+static void finalize_dev (device_t dev)
+{
+	/*
+	 * Notify FSP for PostPciEnumeration.
+	 * Northbridge APIC init should be early and late enough...
+	 */
+	printk(BIOS_DEBUG, "FspNotify(EnumInitPhaseAfterPciEnumeration)\n");
+	FspNotify(EnumInitPhaseAfterPciEnumeration);
+}
+
+static struct device_operations pci_domain_ops = {
+	.read_resources   = pci_domain_read_resources,
+	.set_resources    = pci_domain_set_resources,
+	.enable_resources = NULL,
+	.init             = NULL,
+	.final            = &finalize_dev,
+	.scan_bus         = pci_domain_scan_bus,
+	.ops_pci_bus      = pci_bus_default_ops,
+};
+
+static void cpu_bus_noop(device_t dev) { }
+
+static struct device_operations cpu_bus_ops = {
+	.read_resources   = cpu_bus_noop,
+	.set_resources    = cpu_bus_noop,
+	.enable_resources = cpu_bus_noop,
+	.init             = baytrail_init_cpus,
+	.scan_bus         = NULL,
+};
+
+static void enable_dev(device_t dev)
+{
+	printk(BIOS_DEBUG, "enable_dev(%s, %d)\n",
+	       dev_name(dev), dev->path.type);
+
+	/* Set the operations if it is a special bus type */
+	if (dev->path.type == DEVICE_PATH_DOMAIN) {
+		dev->ops = &pci_domain_ops;
+	} else if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) {
+		dev->ops = &cpu_bus_ops;
+	} else if (dev->path.type == DEVICE_PATH_PCI) {
+		/* Handle south cluster enablement. */
+		if (PCI_SLOT(dev->path.pci.devfn) > GFX_DEV &&
+		    (dev->ops == NULL || dev->ops->enable == NULL)) {
+			southcluster_enable_dev(dev);
+		}
+	}
+}
+
+static void finalize_chip(void *chip_info)
+{
+	/* Notify FSP for ReadyToBoot */
+	printk(BIOS_DEBUG, "FspNotify(EnumInitPhaseReadyToBoot)\n");
+	FspNotify(EnumInitPhaseReadyToBoot);
+
+}
+
+/* Called at BS_DEV_INIT_CHIPS time -- very early. Just after BS_PRE_DEVICE. */
+static void soc_init(void *chip_info)
+{
+	baytrail_init_pre_device();
+}
+
+struct chip_operations soc_intel_fsp_baytrail_ops = {
+	CHIP_NAME("Intel BayTrail SoC")
+	.enable_dev = enable_dev,
+	.init = soc_init,
+	.final = &finalize_chip,
+};
+
+static void pci_set_subsystem(device_t dev, unsigned vendor, unsigned device)
+{
+	if (!vendor || !device) {
+		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
+				pci_read_config32(dev, PCI_VENDOR_ID));
+	} else {
+		pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
+				((device & 0xffff) << 16) | (vendor & 0xffff));
+	}
+}
+
+struct pci_operations soc_pci_ops = {
+	.set_subsystem = &pci_set_subsystem,
+};