1 files changed, 58 insertions, 0 deletions
diff --git a/cpu/arm926ejs/kirkwood/dram.c b/cpu/arm926ejs/kirkwood/dram.c
new file mode 100644
index 0000000..8f2a18a
--- /dev/null
+++ b/cpu/arm926ejs/kirkwood/dram.c
@@ -0,0 +1,58 @@
+/*
+ * (C) Copyright 2009
+ * Marvell Semiconductor <www.marvell.com>
+ * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#include <config.h>
+#include <asm/arch/kirkwood.h>
+
+#define KW_REG_CPUCS_WIN_BAR(x)		(KW_REGISTER(0x1500) + (x * 0x08))
+#define KW_REG_CPUCS_WIN_SZ(x)		(KW_REGISTER(0x1504) + (x * 0x08))
+/*
+ * kw_sdram_bar - reads SDRAM Base Address Register
+ */
+u32 kw_sdram_bar(enum memory_bank bank)
+{
+	u32 result = 0;
+	u32 enable = 0x01 & readl(KW_REG_CPUCS_WIN_SZ(bank));
+
+	if ((!enable) || (bank > BANK3))
+		return 0;
+
+	result = readl(KW_REG_CPUCS_WIN_BAR(bank));
+	return result;
+}
+
+/*
+ * kw_sdram_bs - reads SDRAM Bank size
+ */
+u32 kw_sdram_bs(enum memory_bank bank)
+{
+	u32 result = 0;
+	u32 enable = 0x01 & readl(KW_REG_CPUCS_WIN_SZ(bank));
+
+	if ((!enable) || (bank > BANK3))
+		return 0;
+	result = 0xff000000 & readl(KW_REG_CPUCS_WIN_SZ(bank));
+	result += 0x01000000;
+	return result;
+}