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Diffstat (limited to 'doc/README.rockchip')
| -rw-r--r-- | doc/README.rockchip | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/doc/README.rockchip b/doc/README.rockchip index 186a1a0..2d8cf9f 100644 --- a/doc/README.rockchip +++ b/doc/README.rockchip @@ -36,15 +36,16 @@ You will need: Building ======== -At present seven RK3288 boards are supported: +At present eight RK3288 boards are supported: - EVB RK3288 - use evb-rk3288 configuration - Fennec RK3288 - use fennec-rk3288 configuration - Firefly RK3288 - use firefly-rk3288 configuration - Hisense Chromebook - use chromebook_jerry configuration - - Tinker RK3288 - use tinker-rk3288 configuration + - MiQi RK3288 - use miqi-rk3288 configuration - PopMetal RK3288 - use popmetal-rk3288 configuration - Radxa Rock 2 - use rock2 configuration + - Tinker RK3288 - use tinker-rk3288 configuration Two RK3036 board are supported: @@ -147,6 +148,32 @@ 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 |