• Sekhar Nori's avatar
    davinci: add support for aemif timing configuration · 8060ef4d
    Sekhar Nori authored
    This patch adds support to configure the AEMIF interface
    with supplied timing values.
    
    Since this capability is useful both from NOR and NAND
    flashes, it is provided as a new interface and in a file
    of its own.
    
    AEMIF timing configuration is required in cases:
    
    1) Where the AEMIF clock rate can change at runtime (a side
       affect of cpu frequency change).
    
    2) Where U-Boot does not support NAND/NOR but supports other
       media like SPI Flash or MMC/SD and thus does not care about
       setting up the AEMIF timing for kernel to use.
    
    3) Where U-Boot just hasn't configured the timing values and
       cannot be upgraded because the box is already in the field.
    
    Since there is now a header file for AEMIF interface, the
    common (non-NAND specific) defines for AEMIF registers have
    been moved from nand.h into the newly created aemif.h
    Signed-off-by: default avatarSekhar Nori <nsekhar@ti.com>
    Acked-by: default avatarKevin Hilman <khilman@deeprootsystems.com>
    Signed-off-by: default avatarKevin Hilman <khilman@deeprootsystems.com>
    8060ef4d
aemif.h 780 Bytes