[U-Boot] [PATCH 2/3] OMAP3: SDRC: Introduce Numonyx DDR type
Steve Sakoman
steve at sakoman.com
Sun Oct 10 06:46:43 CEST 2010
On Sun, 2010-10-10 at 01:13 +0200, Enric Balletbo i Serra wrote:
> Introduce Numonyx DDR timings and provide CONFIG_OMAP3_NUMONYX_DDR
> config options to allow for platform files to setup their timings.
>
> Signed-off-by: Enric Balletbo i Serra <eballetbo at gmail.com>
> ---
> arch/arm/include/asm/arch-omap3/mem.h | 42 +++++++++++++++++++++++++++++++++
> 1 files changed, 42 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/include/asm/arch-omap3/mem.h b/arch/arm/include/asm/arch-omap3/mem.h
> index a78cf9f..cb59588 100644
> --- a/arch/arm/include/asm/arch-omap3/mem.h
> +++ b/arch/arm/include/asm/arch-omap3/mem.h
> @@ -128,6 +128,44 @@ enum {
> (MICRON_XSR_165 << 0) | (MICRON_TXP_165 << 8) | \
> (MICRON_TWTR_165 << 16))
>
> +/* NUMONYX part of IGEP v2 (165MHz optimized) 6.06ns
> + * ACTIMA
> + * TDAL = Twr/Tck + Trp/tck = 15/6 + 18/6 = 2.5 + 3 = 5.5 -> 6
> + * TDPL (Twr) = 15/6 = 2.5 -> 3
> + * TRRD = 12/6 = 2
> + * TRCD = 22.5/6 = 3.75 -> 4
> + * TRP = 18/6 = 3
> + * TRAS = 42/6 = 7
> + * TRC = 60/6 = 10
> + * TRFC = 140/6 = 23.3 -> 24
> + * ACTIMB
> + * TWTR = 2
> + * TCKE = 2
> + * TXSR = 200/6 = 33.3 -> 34
> + * TXP = 1.0 + 1.1 = 2.1 -> 3
> + */
> +#define NUMONYX_TDAL_165 6
> +#define NUMONYX_TDPL_165 3
> +#define NUMONYX_TRRD_165 2
> +#define NUMONYX_TRCD_165 4
> +#define NUMONYX_TRP_165 3
> +#define NUMONYX_TRAS_165 7
> +#define NUMONYX_TRC_165 10
> +#define NUMONYX_TRFC_165 24
> +#define NUMONYX_V_ACTIMA_165 ((NUMONYX_TRFC_165 << 27) | \
> + (NUMONYX_TRC_165 << 22) | (NUMONYX_TRAS_165 << 18) | \
> + (NUMONYX_TRP_165 << 15) | (NUMONYX_TRCD_165 << 12) | \
> + (NUMONYX_TRRD_165 << 9) | (NUMONYX_TDPL_165 << 6) | \
> + (NUMONYX_TDAL_165))
> +
> +#define NUMONYX_TWTR_165 2
> +#define NUMONYX_TCKE_165 2
> +#define NUMONYX_TXP_165 3
> +#define NUMONYX_XSR_165 34
> +#define NUMONYX_V_ACTIMB_165 ((NUMONYX_TCKE_165 << 12) | \
> + (NUMONYX_XSR_165 << 0)) | (NUMONYX_TXP_165 << 8) | \
> + (NUMONYX_TWTR_165 << 16)
I think the parens in the above define aren't quite what you intended
(perhaps an extra close paren in the XSR term and a missing close paren
on the end of the define)
> #ifdef CONFIG_OMAP3_INFINEON_DDR
> #define V_ACTIMA_165 INFINEON_V_ACTIMA_165
> #define V_ACTIMB_165 INFINEON_V_ACTIMB_165
> @@ -136,6 +174,10 @@ enum {
> #define V_ACTIMA_165 MICRON_V_ACTIMA_165
> #define V_ACTIMB_165 MICRON_V_ACTIMB_165
> #endif
> +#ifdef CONFIG_OMAP3_NUMONYX_DDR
> +#define V_ACTIMA_165 NUMONYX_V_ACTIMA_165
> +#define V_ACTIMB_165 NUMONYX_V_ACTIMB_165
> +#endif
>
> #if !defined(V_ACTIMA_165) || !defined(V_ACTIMB_165)
> #error "Please choose the right DDR type in config header"
If the above change is made, then:
Acked-by: Steve Sakoman <steve.sakoman at linaro.org>
Steve
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