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authorPaul Walmsley <paul@pwsan.com>2009-05-28 14:03:59 -0700
committerTony Lindgren <tony@atomide.com>2009-05-28 14:03:59 -0700
commit2e12bd7ef175c9dc55dc215823b62a2247865012 (patch)
treef38fa653e5b48e92e7f47e818976f5ece1234397 /arch/arm/mach-omap2/sdram-micron-mt46h32m32lf-6.h
parent2aa57be2d9e400f498cf0f0636069a81035e06b9 (diff)
ARM: OMAP3: SDRC: add timing data for Micron MT46H32M32LF-6, v2
Add timing data for the Micron MT46H32M32LF-6 SDRAM chip, used on the OMAP3 Beagle and EVM boards. Original timing data is from the Micron datasheet PDF downloaded from: http://download.micron.com/pdf/datasheets/dram/mobile/1gb_ddr_mobile_sdram_t48m.pdf Thanks to Rajendra Nayak <rnayak@ti.com> for his help identifying the chips used on Beagle & OMAP3EVM. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap2/sdram-micron-mt46h32m32lf-6.h')
-rw-r--r--arch/arm/mach-omap2/sdram-micron-mt46h32m32lf-6.h55
1 files changed, 55 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/sdram-micron-mt46h32m32lf-6.h b/arch/arm/mach-omap2/sdram-micron-mt46h32m32lf-6.h
new file mode 100644
index 00000000000..02e1c2d4705
--- /dev/null
+++ b/arch/arm/mach-omap2/sdram-micron-mt46h32m32lf-6.h
@@ -0,0 +1,55 @@
+/*
+ * SDRC register values for the Micron MT46H32M32LF-6
+ *
+ * Copyright (C) 2008 Texas Instruments, Inc.
+ * Copyright (C) 2008-2009 Nokia Corporation
+ *
+ * Paul Walmsley
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef ARCH_ARM_MACH_OMAP2_SDRAM_MICRON_MT46H32M32LF
+#define ARCH_ARM_MACH_OMAP2_SDRAM_MICRON_MT46H32M32LF
+
+#include <mach/sdrc.h>
+
+/* Micron MT46H32M32LF-6 */
+/* XXX Using ARE = 0x1 (no autorefresh burst) -- can this be changed? */
+static struct omap_sdrc_params mt46h32m32lf6_sdrc_params[] = {
+ [0] = {
+ .rate = 166000000,
+ .actim_ctrla = 0x9a9db4c6,
+ .actim_ctrlb = 0x00011217,
+ .rfr_ctrl = 0x0004dc01,
+ .mr = 0x00000032,
+ },
+ [1] = {
+ .rate = 165941176,
+ .actim_ctrla = 0x9a9db4c6,
+ .actim_ctrlb = 0x00011217,
+ .rfr_ctrl = 0x0004dc01,
+ .mr = 0x00000032,
+ },
+ [2] = {
+ .rate = 83000000,
+ .actim_ctrla = 0x51512283,
+ .actim_ctrlb = 0x0001120c,
+ .rfr_ctrl = 0x00025501,
+ .mr = 0x00000032,
+ },
+ [3] = {
+ .rate = 82970588,
+ .actim_ctrla = 0x51512283,
+ .actim_ctrlb = 0x0001120c,
+ .rfr_ctrl = 0x00025501,
+ .mr = 0x00000032,
+ },
+ [4] = {
+ .rate = 0
+ },
+};
+
+#endif