Eric Lee / smarc-uboot

13 Mar, 2014

1 commit

  • 4379ac614   kbuild: rename TOPDIR to stctree ... Browse Code »

    Prior to Kbuild, $(TOPDIR) or $(SRCTREE) was used for
    pointing to the top of source directory.
    (No difference between the two.)

    In Kbuild style, $(srctree) is used instead.
    This commit renames TOPDIR to srctree and delete the
    defition of TOPDIR.

    Signed-off-by: Masahiro Yamada

    Masahiro Yamada
     

21 Aug, 2013

1 commit

  • 3aa29de0b   TPL : introduce the TPL based on the SPL ... Browse Code »

    Due to the nand SPL on some board(e.g. P1022DS)has a size limit, it can
    not be more than 4K. So, the SPL cannot initialize the DDR with the SPD
    code. This patch introduces TPL to enable a loader stub that is loaded
    by the code from the SPL. It initializes the DDR with the SPD or other
    operations.

    The TPL's size is sizeable, the maximum size is decided by the memory's
    size that TPL runs. It initializes the DDR through SPD code, and copys
    final uboot image to DDR. So there are three stage uboot images:
    * spl_boot, * tpl_boot, * final uboot image

    Signed-off-by: Ying Zhang
    Acked-by: York Sun

    Ying Zhang