[PATCH 2/3] arm: mach-omap2: sdram-nokia: add 200 MHz memory timings info

Tony Lindgren tony at atomide.com
Fri Dec 9 13:06:41 EST 2011


* Aaro Koskinen <aaro.koskinen at nokia.com> [111209 06:33]:
> From: Igor Dmitriev <ext-dmitriev.igor at nokia.com>
> 
> Add memory timing info regarding the 200 MHz memory in sdram-nokia.
> 
> Signed-off-by: Igor Dmitriev <ext-dmitriev.igor at nokia.com>
> Signed-off-by: Eduardo Valentin <eduardo.valentin at nokia.com>
> Signed-off-by: Aaro Koskinen <aaro.koskinen at nokia.com>
> ---
>  arch/arm/mach-omap2/sdram-nokia.c |   25 ++++++++++++++++++++++++-
>  1 files changed, 24 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/arm/mach-omap2/sdram-nokia.c b/arch/arm/mach-omap2/sdram-nokia.c
> index 14caa22..b394a0e 100644
> --- a/arch/arm/mach-omap2/sdram-nokia.c
> +++ b/arch/arm/mach-omap2/sdram-nokia.c
> @@ -1,7 +1,7 @@
>  /*
>   * SDRC register values for Nokia boards
>   *
> - * Copyright (C) 2008, 2010 Nokia Corporation
> + * Copyright (C) 2008, 2010-2011 Nokia Corporation
>   *
>   * Lauri Leukkunen <lauri.leukkunen at nokia.com>
>   *
> @@ -107,14 +107,37 @@ static const struct sdram_timings nokia_195dot2mhz_timings[] = {
>  	},
>  };
>  
> +static const struct sdram_timings nokia_200mhz_timings[] = {
> +	{
> +		.casl = 3,
> +		.tDAL = 30000,
> +		.tDPL = 15000,
> +		.tRRD = 10000,
> +		.tRCD = 20000,
> +		.tRP = 15000,
> +		.tRAS = 40000,
> +		.tRC = 55000,
> +		.tRFC = 140000,
> +		.tXSR = 200000,
> +
> +		.tREF = 7800,
> +
> +		.tXP = 2,
> +		.tCKE = 4,
> +		.tWTR = 2
> +	},
> +};
> +
>  static const struct {
>  	long rate;
>  	struct sdram_timings const *data;
>  } nokia_timings[] = {
>  	{ 83000000, nokia_166mhz_timings },
>  	{ 97600000, nokia_97dot6mhz_timings },
> +	{ 100000000, nokia_200mhz_timings },

Is that a typo above? Should it say nokia_100mhz_timings?

>  	{ 166000000, nokia_166mhz_timings },
>  	{ 195200000, nokia_195dot2mhz_timings },
> +	{ 200000000, nokia_200mhz_timings },
>  };
>  static struct omap_sdrc_params nokia_sdrc_params[ARRAY_SIZE(nokia_timings) + 1];

Regards,

Tony



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