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OMAP3: SDRC: Introduce Numonyx DDR type 

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@gmail.com>
Acked-by: Steve Sakoman <steve.sakoman@linaro.org>
Tested-by: Steve Sakoman <steve.sakoman@linaro.org>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
This commit is contained in:
Enric Balletbo i Serra 2010-10-14 16:53:27 -04:00 committed by Wolfgang Denk
parent 57b512b2ec
commit 84b6631038
1 changed files with 43 additions and 0 deletions
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43
arch/arm/include/asm/arch-omap3/mem.h
View File

@ -128,6 +128,45 @@ 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))
#ifdef CONFIG_OMAP3_INFINEON_DDR
#define V_ACTIMA_165 INFINEON_V_ACTIMA_165
#define V_ACTIMB_165 INFINEON_V_ACTIMB_165
@ -136,6 +175,10 @@ 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"