1 files changed, 32 insertions, 0 deletions
diff --git a/roms/u-boot/arch/x86/cpu/efi/sdram.c b/roms/u-boot/arch/x86/cpu/efi/sdram.c
new file mode 100644
index 000000000..af65982fd
--- /dev/null
+++ b/roms/u-boot/arch/x86/cpu/efi/sdram.c
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2015 Google, Inc
+ */
+
+#include <common.h>
+#include <efi.h>
+#include <init.h>
+#include <asm/global_data.h>
+#include <asm/u-boot-x86.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+ulong board_get_usable_ram_top(ulong total_size)
+{
+	return (ulong)efi_get_ram_base() + gd->ram_size;
+}
+
+int dram_init(void)
+{
+	/* gd->ram_size is set as part of EFI init */
+
+	return 0;
+}
+
+int dram_init_banksize(void)
+{
+	gd->bd->bi_dram[0].start = efi_get_ram_base();
+	gd->bd->bi_dram[0].size = CONFIG_EFI_RAM_SIZE;
+
+	return 0;
+}