On 08/16/2013 12:16 AM, ying.zh...@freescale.com wrote: > From: Ying Zhang <b40...@freescale.com> > > 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 > > This patch is on top of the patch: > SPL: Makefile: Build a separate autoconf.mk for SPL
These two lines are removed when applying. > > Signed-off-by: Ying Zhang <b40...@freescale.com> > --- > Change from v10: > - No change. > Change from v9: > - Move the part revision to the other patch. for example:fsl_elbc_spl.c. > - Modify the Makefile. > - Modify doc/README.TPL, fix checkpatch warnings. > Change from v8: > - Modify the doc/README.TPL. > - Modify the Makefile. > - Modify the drivers/mtd/nand/fsl_elbc_spl.c. > - Modify the spl/Makefile. > Change from v7: > - Modify the doc/README.TPL > - Modify the spl/Makefile. > Change from v6: > - Modify the description of the patch. > - Add the separate the autoconf.mk for TPL. > - Delete the file tpl/Makefile and the directory tpl. > - Reuse the spl/Makefie in TPL. > Change from v5: > - Use ifdef to define "nand_load_image" to non-static for non-SPL. > Change from v4: > - No change. > Change from v3: > - No change. > Change from v2: > - No change. > Change from v1: > - Split from "powerpc/p1022ds: nand: introduce the TPL based on the SPL". > > Makefile | 50 ++++++++++++++++++++++++++++++++++++++++++-------- > README | 16 ++++++++++++++++ > config.mk | 30 ++++++++++++++++++++++++++++-- > doc/README.TPL | 45 +++++++++++++++++++++++++++++++++++++++++++++ > spl/Makefile | 20 ++++++++++++++++---- > 5 files changed, 147 insertions(+), 14 deletions(-) > create mode 100644 doc/README.TPL > Applied to u-boot-mpc85xx.git after removing "NAND" from the subject. York _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
