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authorVaibhav Bedia <vaibhav.bedia@ti.com>2012-04-20 13:28:16 +0530
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2012-09-01 14:58:12 +0200
commit7d8a961d31965799b5ede64e0992232e04c2d009 (patch)
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am335x: ddr_defs: Update EMIF parameters
EMIF parameters are calculated based on the AC timing parameters from the SDRAM datasheet and the DDR frequency. Current values for these paramters in AM335x U-Boot code, though reliable, are not fully optimal. The most optimal settings can be derived based on the guidelines published at [1]. A pre-computed set of values with the most optimum settings for AM335x EVM and BeagleBone can be found at [2]. [1] http://processors.wiki.ti.com/index.php/AM335x_EMIF_Configuration_tips [2] http://processors.wiki.ti.com/index.php/OMAP_and_Sitara_CCS_support#AM335x Signed-off-by: Vaibhav Bedia <vaibhav.bedia@ti.com> Signed-off-by: Tom Rini <trini@ti.com>
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