arch/mips: Add base MIPS architecture support

Add the build infrastructure and basic architectural support required
to build for targets using the MIPS architecture. This is sufficient
to run on a simulator, but will require the addition of some cache
maintenance and timer setup in order to run on real hardware.

BUG=chrome-os-partner:31438, chromium:409082
TEST=none yet

Change-Id: I027902d8408e419b626d0aab7768bc564bd49047
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: fcc0d934d7223922c878b1f87021cb5c2d7e6f21
Original-Change-Id: If4f99554463bd3760fc142477440326fd16c67cc
Original-Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/207972
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/8760
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

1 files changed, 67 insertions, 0 deletions

diff --git a/src/arch/mips/tables.c b/src/arch/mips/tables.c
new file mode 100644
index 0000000000..858fa799a3
--- /dev/null
+++ b/src/arch/mips/tables.c
@@ -0,0 +1,67 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Based on src/arch/armv7/tables.c:
+ *   Copyright (C) 2003 Eric Biederman
+ *   Copyright (C) 2005 Steve Magnani
+ *   Copyright (C) 2008-2009 coresystems GmbH
+ *
+ * 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 <cpu/cpu.h>
+#include <boot/tables.h>
+#include <boot/coreboot_tables.h>
+#include <string.h>
+#include <cbmem.h>
+#include <lib.h>
+
+#define MAX_COREBOOT_TABLE_SIZE (8 * 1024)
+
+void cbmem_arch_init(void)
+{
+}
+
+struct lb_memory *write_tables(void)
+{
+	unsigned long table_pointer, new_table_pointer;
+
+	post_code(0x9d);
+
+	table_pointer = (unsigned long)cbmem_add(CBMEM_ID_CBTABLE,
+						 MAX_COREBOOT_TABLE_SIZE);
+	if (!table_pointer) {
+		printk(BIOS_ERR, "Could not add CBMEM for coreboot table.\n");
+		return NULL;
+	}
+
+	new_table_pointer = write_coreboot_table(0UL, 0UL, table_pointer,
+						 table_pointer);
+
+	if (new_table_pointer > (table_pointer + MAX_COREBOOT_TABLE_SIZE))
+		printk(BIOS_ERR, "coreboot table didn't fit (%lx/%x bytes)\n",
+		       new_table_pointer - table_pointer,
+		       MAX_COREBOOT_TABLE_SIZE);
+
+	printk(BIOS_DEBUG, "coreboot table: %ld bytes.\n",
+	       new_table_pointer - table_pointer);
+
+	post_code(0x9e);
+
+	/* Print CBMEM sections */
+	cbmem_list();
+
+	return get_lb_mem();
+}