northbridge/intel: Add fsp_rangeley northbridge support

This adds the northbridge initialization pieces for Intel's Atom C2000
processor (Formerly Rangeley).  It is intended to be used with the Intel
Atom C2000 FSP and does not contain all of the pieces that would
otherwise be required for initialization.

Not currently supported:
S3 suspend/resume
CAR memory Migration (No early cbmem console)
SMM

Change-Id: I7665212c892d9a08ecf35d7be70d0afe5fd2c77b
Signed-off-by: Martin Roth <gaumless@gmail.com>
Reviewed-on: http://review.coreboot.org/6369
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>

1 files changed, 78 insertions, 0 deletions

diff --git a/src/northbridge/intel/fsp_rangeley/northbridge.h b/src/northbridge/intel/fsp_rangeley/northbridge.h
new file mode 100644
index 0000000000..855a056789
--- /dev/null
+++ b/src/northbridge/intel/fsp_rangeley/northbridge.h
@@ -0,0 +1,78 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2007-2008 coresystems GmbH
+ * Copyright (C) 2011 Google Inc.
+ * Copyright (C) 2013 Sage Electronic Engineering, LLC.
+ *
+ * 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
+ */
+
+#ifndef __NORTHBRIDGE_INTEL_RANGELEY_NORTHBRIDGE_H__
+#define __NORTHBRIDGE_INTEL_RANGELEY_NORTHBRIDGE_H__ 1
+
+#define DEFAULT_ECBASE CONFIG_MMCONF_BASE_ADDRESS
+
+/* Everything below this line is ignored in the DSDT */
+#ifndef __ACPI__
+
+/* Device 0:0.0 PCI configuration space (Host Bridge) */
+
+/* SideBand B-UNIT */
+#define B_UNIT 3
+ #define BNOCACHE    0x23
+ #define BNOCACHECTL 0x24
+ #define BMBOUND     0x25
+ #define BMBOUND_HI  0x26
+ #define BECREG      0x27
+ #define BMISC       0x28
+ #define BSMMRRL     0x2E
+ #define BSMMRRH     0x2F
+ #define BIMR0L      0x80
+ #define BIMR0H      0x81
+ #define BIMR0RAC    0x82
+ #define BIMR0WAC    0x83
+
+/* SideBand C-UNIT */
+#define C_UNIT 8
+
+/* SideBand D-UNIT */
+#define D_UNIT 1
+
+/* SideBand P-UNIT */
+#define P_UNIT 4
+
+#ifndef __ASSEMBLER__
+static inline void barrier(void) { asm("" ::: "memory"); }
+
+#define PCI_DEVICE_ID_RG_MIN 0x1F00
+#define PCI_DEVICE_ID_RG_MAX 0x1F0F
+#define SKPAD 0xFC
+
+int bridge_silicon_revision(void);
+void rangeley_late_initialization(void);
+u32 sideband_read(int port, int reg);
+void sideband_write(int port, int reg, long data);
+
+/* debugging functions */
+void print_pci_devices(void);
+void dump_pci_device(unsigned dev);
+void dump_pci_devices(void);
+void dump_spd_registers(void);
+void dump_mem(unsigned start, unsigned end);
+void report_platform_info(void);
+
+#endif /* #ifndef __ASSEMBLER__ */
+#endif /* #ifndef __ACPI__ */
+#endif /* #ifndef __NORTHBRIDGE_INTEL_RANGELEY_NORTHBRIDGE_H__ */