diff options
| author |   Paul Walmsley <paul@pwsan.com> | 2009-05-28 14:03:59 -0700 |
|---|---|---|
| committer |   Tony Lindgren <tony@atomide.com> | 2009-05-28 14:03:59 -0700 |
| commit | 2e12bd7ef175c9dc55dc215823b62a2247865012 (patch) | |
| tree | f38fa653e5b48e92e7f47e818976f5ece1234397 /arch/arm/mach-omap2/sdram-micron-mt46h32m32lf-6.h | |
| parent | ARM: OMAP2/3: Serial: Remove arch_initcall dependency (diff) | |
| download | linux-dev-2e12bd7ef175c9dc55dc215823b62a2247865012.tar.xz linux-dev-2e12bd7ef175c9dc55dc215823b62a2247865012.zip | |
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.h | 55 |
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 000000000000..02e1c2d4705f --- /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 |