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-rw-r--r--src/arch/x86/car.ld51
1 files changed, 51 insertions, 0 deletions
diff --git a/src/arch/x86/car.ld b/src/arch/x86/car.ld
new file mode 100644
index 0000000000..c30c802927
--- /dev/null
+++ b/src/arch/x86/car.ld
@@ -0,0 +1,51 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2006 Advanced Micro Devices, Inc.
+ * Copyright (C) 2008-2010 coresystems GmbH
+ * Copyright 2015 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.
+ */
+
+/* This file is included inside a SECTIONS block */
+. = CONFIG_DCACHE_RAM_BASE;
+.car.data . (NOLOAD) : {
+ _car_data_start = .;
+#if IS_ENABLED(CONFIG_HAS_PRECBMEM_TIMESTAMP_REGION)
+ TIMESTAMP(., 0x100)
+#endif
+ *(.car.global_data);
+ . = ALIGN(ARCH_POINTER_ALIGN_SIZE);
+ _car_data_end = .;
+
+ PRERAM_CBMEM_CONSOLE(., (CONFIG_LATE_CBMEM_INIT ? 0 : 0xc00))
+}
+
+/* Global variables are not allowed in romstage
+ * This section is checked during stage creation to ensure
+ * that there are no global variables present
+ */
+
+. = 0xffffff00;
+.illegal_globals . : {
+ *(EXCLUDE_FILE ("*/libagesa.*.a:" "*/buildOpts.romstage.o" "*/agesawrapper.romstage.o" "*/vendorcode/amd/agesa/*" "*/vendorcode/amd/cimx/*") .data)
+ *(EXCLUDE_FILE ("*/libagesa.*.a:" "*/buildOpts.romstage.o" "*/agesawrapper.romstage.o" "*/vendorcode/amd/agesa/*" "*/vendorcode/amd/cimx/*") .data.*)
+ *(.bss)
+ *(.bss.*)
+ *(.sbss)
+ *(.sbss.*)
+}
+
+_bogus = ASSERT((CONFIG_DCACHE_RAM_SIZE == 0) || (SIZEOF(.car.data) + 0xc00 <= CONFIG_DCACHE_RAM_SIZE), "Cache as RAM area is too full");