| Message ID | 20170218184640.30635-21-heiko@sntech.de |
|---|---|
| State | Accepted |
| Commit | f46b859bfb1f1cf95721efbc04c22cb27dc70f80 |
| Delegated to: | Simon Glass |
| Headers | show |
Hi Heiko, On 18 February 2017 at 11:46, Heiko Stuebner <heiko@sntech.de> wrote: > Building sd images for rk3188 requires more steps due to the needed split > into TPL and SPL as loaders. Describe how to build an image for it in a > separate paragraph in the READER.rockchip file. > > Signed-off-by: Heiko Stuebner <heiko@sntech.de> > --- > doc/README.rockchip | 26 ++++++++++++++++++++++++++ > 1 file changed, 26 insertions(+) Acked-by: Simon Glass <sjg@chromium.org> It would be great to implement this image creation in binman. It will need to have support for tpl and rc4. - Simon
On 21 February 2017 at 11:08, Simon Glass <sjg@chromium.org> wrote: > Hi Heiko, > > On 18 February 2017 at 11:46, Heiko Stuebner <heiko@sntech.de> wrote: >> Building sd images for rk3188 requires more steps due to the needed split >> into TPL and SPL as loaders. Describe how to build an image for it in a >> separate paragraph in the READER.rockchip file. >> >> Signed-off-by: Heiko Stuebner <heiko@sntech.de> >> --- >> doc/README.rockchip | 26 ++++++++++++++++++++++++++ >> 1 file changed, 26 insertions(+) > > Acked-by: Simon Glass <sjg@chromium.org> > > It would be great to implement this image creation in binman. It will > need to have support for tpl and rc4. > > - Simon Applied to u-boot-rockchip, thanks!
diff --git a/doc/README.rockchip b/doc/README.rockchip index 43cafc7bd6..744fdcea14 100644 --- a/doc/README.rockchip +++ b/doc/README.rockchip @@ -147,6 +147,32 @@ For evb_rk3036 board: Note: rk3036 SDMMC and debug uart use the same iomux, so if you boot from SD, the debug uart must be disabled + +Booting from an SD card on RK3188 +================================= + +For rk3188 boards the general storage onto the card stays the same as +described above, but the image creation needs a bit more care. + +The bootrom of rk3188 expects to find a small 1kb loader which returns +control to the bootrom, after which it will load the real loader, which +can then be up to 29kb in size and does the regular ddr init. + +Additionally the rk3188 requires everything the bootrom loads to be +rc4-encrypted. Except for the very first stage the bootrom always reads +and decodes 2kb pages, so files should be sized accordingly. + +# copy tpl, pad to 1020 bytes and append spl +cat tpl/u-boot-tpl.bin > tplspl.bin +truncate -s 1020 tplspl.bin +cat spl/u-boot-spl.bin >> tplspl.bin +tools/mkimage -n rk3188 -T rksd -d tplspl.bin out + +# truncate, encode and append u-boot.bin +truncate -s %2048 u-boot.bin +cat u-boot.bin | split -b 512 --filter='openssl rc4 -K 7C4E0304550509072D2C7B38170D1711' >> out + + Using fastboot on rk3288 ======================== - Write GPT partition layout to mmc device which fastboot want to use it to
Building sd images for rk3188 requires more steps due to the needed split into TPL and SPL as loaders. Describe how to build an image for it in a separate paragraph in the READER.rockchip file. Signed-off-by: Heiko Stuebner <heiko@sntech.de> --- doc/README.rockchip | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+)