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Diffstat (limited to 'arch/x86/lib/fsp1/fsp_dram.c')
-rw-r--r--arch/x86/lib/fsp1/fsp_dram.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/x86/lib/fsp1/fsp_dram.c b/arch/x86/lib/fsp1/fsp_dram.c
new file mode 100644
index 0000000000..6a3349b42a
--- /dev/null
+++ b/arch/x86/lib/fsp1/fsp_dram.c
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
+ */
+
+#include <common.h>
+#include <asm/fsp/fsp_support.h>
+
+int dram_init(void)
+{
+ int ret;
+
+ /* The FSP has already set up DRAM, so grab the info we need */
+ ret = fsp_scan_for_ram_size();
+ if (ret)
+ return ret;
+
+ if (IS_ENABLED(CONFIG_ENABLE_MRC_CACHE))
+ gd->arch.mrc_output = fsp_get_nvs_data(gd->arch.hob_list,
+ &gd->arch.mrc_output_len);
+
+ return 0;
+}
+
+/*
+ * This function looks for the highest region of memory lower than 4GB which
+ * has enough space for U-Boot where U-Boot is aligned on a page boundary.
+ * It overrides the default implementation found elsewhere which simply
+ * picks the end of ram, wherever that may be. The location of the stack,
+ * the relocation address, and how far U-Boot is moved by relocation are
+ * set in the global data structure.
+ */
+ulong board_get_usable_ram_top(ulong total_size)
+{
+ return fsp_get_usable_lowmem_top(gd->arch.hob_list);
+}