On Thu, Aug 24, 2017 at 12:33 AM, Jagan Teki <jagannadh.t...@gmail.com> wrote: > On Thu, Aug 24, 2017 at 12:28 AM, Dr. Philipp Tomsich > <philipp.toms...@theobroma-systems.com> wrote: >> >>> On 23 Aug 2017, at 20:44, Jagan Teki <jagannadh.t...@gmail.com> wrote: >>> >>> On Wed, Aug 23, 2017 at 6:22 PM, Dr. Philipp Tomsich >>> <philipp.toms...@theobroma-systems.com> wrote: >>>> >>>>> On 23 Aug 2017, at 13:19, Jagan Teki <jagannadh.t...@gmail.com> wrote: >>>>> >>>>> Hi Philipp, >>>>> >>>>> On Tue, Aug 22, 2017 at 5:41 PM, Dr. Philipp Tomsich >>>>> <philipp.toms...@theobroma-systems.com> wrote: >>>>>> >>>>>>> On 22 Aug 2017, at 14:05, Jagan Teki <jagannadh.t...@gmail.com> wrote: >>>>>>> >>>>>>> Philipp and Kever - Thanks for the response. >>>>>>> >>>>>>> Few comment below. >>>>>>> >>>>>>> On Thu, Aug 17, 2017 at 2:02 PM, Dr. Philipp Tomsich >>>>>>> <philipp.toms...@theobroma-systems.com> wrote: >>>>>>>> Jagan, >>>>>>>> >>>>>>>>> On 17 Aug 2017, at 08:39, Kever Yang <kever.y...@rock-chips.com> >>>>>>>>> wrote: >>>>>>>>> >>>>>>>>> Hi Jagan, >>>>>>>>> >>>>>>>>> >>>>>>>>> On 08/10/2017 05:07 PM, Jagan Teki wrote: >>>>>>>>>> Hi Simon/Philipp or any, >>>>>>>>>> >>>>>>>>>> I believe rk3288 has 20KB BootRom and 100KB internal SRAM and current >>>>>>>>>> u-boot can archive the maximum size of u-boot-spl-dtb.bin which the >>>>>>>>>> boot ROM will read is 32KB, do we have any possibility to increase >>>>>>>>>> the >>>>>>>>>> SPL size here. >>>>>>>>> >>>>>>>>> The limitation is decide by the boot rom design, so we are not able >>>>>>>>> to change this. Most of Rockchip SoCs have this limitation except >>>>>>>>> RK3399. >>>>>>>>> >>>>>>>>> Thanks, >>>>>>>>> - Kever >>>>>>>>>> >>>>>>>>>> # ./tools/mkimage -n rk3288 -T rksd -d ./spl/u-boot-spl-dtb.bin >>>>>>>>>> out.img >>>>>>>>>> Warning: SPL image is too large (size 0x9000) and will not boot >>>>>>>>>> Error: image verification failed >>>>>>>>>> >>>>>>>>>> I tried to increase the spl_size from spl_infos (on tools/rkcommon.c) >>>>>>>>>> but not able to boot. >>>>>>>> >>>>>>>> I should have read this more carefully (I only parsed the 20KB and >>>>>>>> jumped to the conclusion that your had the error already when crossing >>>>>>>> the 20KB limit—even though 0x8000 bytes where allowed in mkimage)… >>>>>>> >>>>>>> Sorry I really didn't understand the size constraint here, because SPL >>>>>>> can be boot file after ROM handoff. Can't this sit on 100KB of SRAM? >>>>>> >>>>>> The ROM usually has different size constraints for each stage. >>>>>> >>>>>> E.g. for the RK3368 (just been there, done that), the first stage has a >>>>>> 0x7000 byte limit and the next stage (loaded to 0x0 in DRAM) has a >>>>>> much larger limit. Note that the SRAM on the 3368 has a capacity of >>>>>> 0x10000 bytes, so the size limit is also quite pronounced. >>>>> >>>>> OK, by looking at your rk3368[1] patch I think the first stage runs >>>>> under 0x7000 is TPL? and next stage(probably SPL) doesn't have limit >>>>> since SPL running here in DDR since DDR initialized DDR in TPL itself. >>>>> this is what the space distributed here? >>>> >>>> Yes, although there is some size limit even for SPL. >>>> If you are going for a falcon-mode implementation on the 3288, you will >>>> probably want to use TPL for DRAM setup and maybe clocking up the >>>> cores (I don’t know the constraints on what clocks the BROM needs >>>> untouched) and then have SPL w/ falcon mode loaded by the BROM. >>> >>> So, TPL should have DDR and MMC, and fit into 0x8000 bytes and SPL >>> will load from MMC and launch u-boot. Do we need spl_bootrom in TPL >>> instead of MMC? if so where we need to copy SPL? >> >> You probably just want DRAM-init and clocking and have everything else >> in SPL (for the falcon use-case). The BROM will magically load the SPL >> stage for you, so no need for MMC support in TPL. > > How does BROM will load SPL here? with > CONFIG_SPL_ROCKCHIP_BACK_TO_BROM=y ? because I will copy TPL at 64 > sector of MMC card and where should I copy SPL?
OK, TPL_ROCKCHIP_BACK_TO_BROM should have back_to_bootrom So we need to append the mkimaged-TPL with SPL and copy to 64 so-that ROM loads SPL by handoff from TPL. thanks! -- Jagan Teki Free Software Engineer | www.openedev.com U-Boot, Linux | Upstream Maintainer Hyderabad, India. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
