On 19/11/2012 11:21, Andreas Bießmann wrote: > Dear Stefano Babic, > > On 19.11.2012 10:11, Stefano Babic wrote: >> Simple howto to add support to a board >> for booting the kernel from SPL ("Falcon" mode). >> >> Signed-off-by: Stefano Babic <sba...@denx.de> > > despite a small change > > Acked-by: Andreas Bießmann <andreas.de...@googlemail.com> > >> --- >> Changes in v3: >> - parameter initrd_addr was removed in V2 (Andreas Biessmann) >> - added patch to fix help usage for spl export (Andreas Biessmann) >> - Added empty lines (Otavio Salvador) >> - add a more exhaustive description explaining that >> spl export does not save into media (Lukasz Majewski). >> >> Changes in v2: >> - spelling, language fixes (Andreas Biessman) >> - rewrite some unclear sentences >> - drop CONFIG_SPL_OS_BOOT_KEY >> - make example with twister more exhaustive >> > > <snip> > >> +Configuration >> +---------------------------- >> +CONFIG_CMD_SPL Enable the "spl export" command. >> + The command "spl export" is then available in U-Boot >> + mode >> +CONFIG_SPL_OS_BOOT Activate Falcon Mode. >> + A board should implement the following functions: >> + >> +CONFIG_SYS_SPL_ARGS_ADDR Address in RAM where the parameters must be >> + copied by SPL. >> + In most cases, it is <start_of_ram> + 0x100 >> + >> +CONFIG_SYS_NAND_SPL_KERNEL_OFFS Offset in NAND where the kernel is >> stored >> + >> +CONFIG_CMD_SPL_NAND_OFS Offset in NAND where the parameters area was >> saved. >> + >> +CONFIG_CMD_SPL_WRITE_SIZE Size of the parameters area to be copied >> + >> +Function that a board must implement >> +------------------------------------ >> + >> +void spl_board_prepare_for_linux(void) : optional >> + Called from SPL before starting the kernel >> + >> +spl_start_uboot() : required >> + Returns "0" if SPL starts the kernel, "1" if U-Boot >> + must be started. >> + >> + > > shouldn't we reorder that thing here (move CONFIG_SPL_OS_BOOT down to > the functions)? >
arghh..right, I missed this change - I will do in V4. Best regards, Stefano Babic -- ===================================================================== DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sba...@denx.de ===================================================================== _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot