nvidia/tegra210: add new SoC
This includes Chrome OS downstream up to Change-Id: Ic89ed54c.
Change-Id: I81853434600390d643160fe57554495b2bfe60ab
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/10633
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
diff --git a/src/soc/nvidia/tegra210/cbmem.c b/src/soc/nvidia/tegra210/cbmem.c
new file mode 100644
index 0000000..c161a36
--- /dev/null
+++ b/src/soc/nvidia/tegra210/cbmem.c
@@ -0,0 +1,40 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2014 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.
+ */
+
+#include <cbmem.h>
+#include <soc/addressmap.h>
+
+void *cbmem_top(void)
+{
+ static uintptr_t addr;
+
+ if (addr == 0) {
+ uintptr_t begin_mib;
+ uintptr_t end_mib;
+
+ memory_in_range_below_4gb(&begin_mib, &end_mib);
+ /* Make sure we consume everything up to 4GIB. */
+ if (end_mib == 4096)
+ addr = ~(uint32_t)0;
+ else
+ addr = end_mib << 20;
+ }
+
+ return (void *)addr;
+}