1 files changed, 55 insertions, 0 deletions
diff --git a/arch/arm/mach-orion5x/dram.c b/arch/arm/mach-orion5x/dram.c
new file mode 100644
index 0000000..9ed93d2
--- /dev/null
+++ b/arch/arm/mach-orion5x/dram.c
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2010 Albert ARIBAUD <albert.u.boot@aribaud.net>
+ *
+ * Based on original Kirkwood support which is
+ * (C) Copyright 2009
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <config.h>
+#include <asm/arch/cpu.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * orion5x_sdram_bar - reads SDRAM Base Address Register
+ */
+u32 orion5x_sdram_bar(enum memory_bank bank)
+{
+	struct orion5x_ddr_addr_decode_registers *winregs =
+		(struct orion5x_ddr_addr_decode_registers *)
+		ORION5X_DRAM_BASE;
+
+	u32 result = 0;
+	u32 enable = 0x01 & winregs[bank].size;
+
+	if ((!enable) || (bank > BANK3))
+		return 0;
+
+	result = winregs[bank].base;
+	return result;
+}
+int dram_init (void)
+{
+	/* dram_init must store complete ramsize in gd->ram_size */
+	gd->ram_size = get_ram_size(
+			(long *) orion5x_sdram_bar(0),
+			CONFIG_MAX_RAM_BANK_SIZE);
+	return 0;
+}
+
+void dram_init_banksize (void)
+{
+	int i;
+
+	for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
+		gd->bd->bi_dram[i].start = orion5x_sdram_bar(i);
+		gd->bd->bi_dram[i].size = get_ram_size(
+			(long *) (gd->bd->bi_dram[i].start),
+			CONFIG_MAX_RAM_BANK_SIZE);
+	}
+}