soc/intel/quark: Establish the Memory Map

Add ramstage.h to define some of the common header files used by the
drivers in ramstage.

Add northcluster.c, the driver for the memory controller, which defines
the memory map.

Testing on Galileo:
*  Edit the src/mainboard/intel/galileo/Makefile.inc file
   *  Add "select ADD_FSP_PDAT_FILE"
   *  Add "select ADD_FSP_RAW_BIN"
   *  Add "select ADD_RMU_FILE"
*  Place the FSP.bin file in the location specified by CONFIG_FSP_FILE
*  Place the pdat.bin files in the location specified by
CONFIG_FSP_PDAT_FILE
*  Place the rmu.bin file in the location specified by CONFIG_RMU_FILE
*  Testing successful if:
   *  Memory map successfully displayed in BS_WRITE_TABLES state

Change-Id: I8dc91119eaad0b7abc2e484d13ee708ba1253438
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/13721
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>

src/soc/intel/quark/Makefile.inc

@@ -24,6 +24,7 @@ romstage-$(CONFIG_ENABLE_BUILTIN_HSUART1) += uart.c
 
 ramstage-y += chip.c
 ramstage-y += memmap.c
+ramstage-y += northcluster.c
 ramstage-y += tsc_freq.c
 ramstage-$(CONFIG_ENABLE_BUILTIN_HSUART1) += uart.c
 

src/soc/intel/quark/chip.c

@@ -14,10 +14,9 @@
  * GNU General Public License for more details.
  */
 
-#include "chip.h"
 #include <console/console.h>
 #include <device/device.h>
-#include <fsp/ramstage.h>
+#include <soc/ramstage.h>
 
 static void chip_init(void *chip_info)
 {

src/soc/intel/quark/include/soc/ramstage.h

@@ -0,0 +1,25 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 Google Inc.
+ * Copyright (C) 2015-2016 Intel Corp.
+ *
+ * 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.
+ */
+
+#ifndef _SOC_RAMSTAGE_H_
+#define _SOC_RAMSTAGE_H_
+
+#include <chip.h>
+#include <device/device.h>
+#include <fsp/ramstage.h>
+#include <soc/QuarkNcSocId.h>
+
+#endif /* _SOC_RAMSTAGE_H_ */

src/soc/intel/quark/northcluster.c

@@ -0,0 +1,78 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2009 coresystems GmbH
+ * Copyright (C) 2014 Google Inc.
+ * Copyright (C) 2015 Intel Corporation.
+ *
+ * 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.
+ */
+
+#include <cbmem.h>
+#include <console/console.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <soc/iomap.h>
+#include <soc/ramstage.h>
+
+#define RES_IN_KIB(r) ((r) >> 10)
+
+static void nc_read_resources(device_t dev)
+{
+	unsigned long base_k;
+	int index = 0;
+	unsigned long size_k;
+
+	/* Read standard PCI resources. */
+	pci_dev_read_resources(dev);
+
+	/* 0 -> 0xa0000 */
+	base_k = 0;
+	size_k = 0xa0000 - base_k;
+	ram_resource(dev, index++, RES_IN_KIB(base_k), RES_IN_KIB(size_k));
+
+	/*
+	 * Reserve everything between A segment and 1MB:
+	 *
+	 * 0xa0000 - 0xbffff: legacy VGA
+	 * 0xc0000 - 0xdffff: RAM
+	 * 0xe0000 - 0xfffff: ROM shadow
+	 */
+	base_k += size_k;
+	size_k = 0xc0000 - base_k;
+	mmio_resource(dev, index++, RES_IN_KIB(base_k), RES_IN_KIB(size_k));
+
+	base_k += size_k;
+	size_k = 0x100000 - base_k;
+	reserved_ram_resource(dev, index++, RES_IN_KIB(base_k),
+		RES_IN_KIB(size_k));
+
+	/* 0x100000 -> cbmem_top - cacheable and usable */
+	base_k += size_k;
+	size_k = (unsigned long)cbmem_top() - base_k;
+	ram_resource(dev, index++, RES_IN_KIB(base_k), RES_IN_KIB(size_k));
+
+	/* cbmem_top -> 4GiB is mmio. */
+	base_k += size_k;
+	size_k = 0x100000000ull - base_k;
+	mmio_resource(dev, index++, RES_IN_KIB(base_k), RES_IN_KIB(size_k));
+}
+
+static struct device_operations nc_ops = {
+	.read_resources   = &nc_read_resources,
+	.set_resources    = &pci_dev_set_resources,
+	.enable_resources = &pci_dev_enable_resources,
+};
+
+static const struct pci_driver systemagent_driver __pci_driver = {
+	.ops	= &nc_ops,
+	.vendor	= PCI_VENDOR_ID_INTEL,
+	.device	= QUARK_MC_DEVICE_ID
+};