PineTab2 spec for ddr and

[rth]

I'm trying to build a U-Boot loader for PineTab2 (don't ask me why, I have no answer to this question).

I use this guide  https://forum.pine64.org/showthread.php?tid=7992 with some modifications.

However, it fails on step 2 - building atf. Without it, U-Boot returns an error

Code:

[alarm@danctnix u-boot]$ make pinetab2-rk3566_defconfig  
#
# configuration written to .config
#
[alarm@danctnix u-boot]$ make -j 4
scripts/kconfig/conf  --syncconfig Kconfig
CFG     u-boot.cfg
GEN     include/autoconf.mk.dep
CFG     spl/u-boot.cfg
GEN     include/autoconf.mk
GEN     spl/include/autoconf.mk
UPD     include/generated/timestamp_autogenerated.h
ENVC    include/generated/env.txt
ENVP    include/generated/env.in
ENVT    include/generated/environment.h
LDS     u-boot.lds
CC      common/version.o
AR      common/built-in.a
CC      env/common.o
AR      env/built-in.a
LD      u-boot
OBJCOPY u-boot.srec
OBJCOPY u-boot-nodtb.bin
RELOC   u-boot-nodtb.bin
SYM     u-boot.sym
CAT     u-boot-dtb.bin
MKIMAGE u-boot.img
MKIMAGE u-boot-dtb.img
COPY    u-boot.bin
CC      spl/common/spl/spl.o
AR      spl/common/spl/built-in.a
LD      spl/u-boot-spl
OBJCOPY spl/u-boot-spl-nodtb.bin
SYM     spl/u-boot-spl.sym
CAT     spl/u-boot-spl-dtb.bin
COPY    spl/u-boot-spl.bin
BINMAN  .binman_stamp
[b]Image 'simple-bin' is missing external blobs and is non-functional: rockchip-tpl atf-bl31[/b]
                                                                                                                                                                                                                             
/binman/simple-bin/mkimage/rockchip-tpl (rockchip-tpl):
 An external TPL is required to initialize DRAM. Get the external TPL
 binary and build with ROCKCHIP_TPL=/path/to/ddr.bin. One possible source
 for the external TPL binary is https://github.com/rockchip-linux/rkbin.

/binman/simple-bin/fit/images/@atf-SEQ/atf-bl31 (atf-bl31):
 See the documentation for your board. You may need to build ARM Trusted
 Firmware and build with BL31=/path/to/bl31.bin

[b]Image 'simple-bin' has faked external blobs and is non-functional: rockchip-tpl[/b]
                                                                                                                                                                                                                             
[b]Image 'simple-bin' is missing optional external blobs but is still functional: tee-os[/b]
                                                                                                                                                                                                                             
/binman/simple-bin/fit/images/@tee-SEQ/tee-os (tee-os):
 See the documentation for your board. You may need to build Open Portable
 Trusted Execution Environment (OP-TEE) and build with TEE=/path/to/tee.bin

[b]Image 'simple-bin-spi' is missing external blobs and is non-functional: rockchip-tpl atf-bl31[/b]
                                                                                                                                                                                                                             
/binman/simple-bin-spi/mkimage/rockchip-tpl (rockchip-tpl):
 An external TPL is required to initialize DRAM. Get the external TPL
 binary and build with ROCKCHIP_TPL=/path/to/ddr.bin. One possible source
 for the external TPL binary is https://github.com/rockchip-linux/rkbin.

/binman/simple-bin-spi/fit/images/@atf-SEQ/atf-bl31 (atf-bl31):
 See the documentation for your board. You may need to build ARM Trusted
 Firmware and build with BL31=/path/to/bl31.bin

[b]Image 'simple-bin-spi' has faked external blobs and is non-functional: rockchip-tpl[/b]
                                                                                                                                                                                                                             
[b]Image 'simple-bin-spi' is missing optional external blobs but is still functional: tee-os[/b]
                                                                                                                                                                                                                             
/binman/simple-bin-spi/fit/images/@tee-SEQ/tee-os (tee-os):
 See the documentation for your board. You may need to build Open Portable
 Trusted Execution Environment (OP-TEE) and build with TEE=/path/to/tee.bin

[b]Some images are invalid[/b]
make: *** [Makefile:1339: .binman_stamp] Error 103

Well, now I'm looking at https://github.com/rockchip-linux/rkbin repository, and there are lots of options there for the TPL

Code:

ls rkbin/bin/rk35/rk3566*
rkbin/bin/rk35/rk3566_ddr_1056MHz_D3_LP3_eyescan_v1.23.bin   rkbin/bin/rk35/rk3566_ddr_1056MHz_ultra_v1.20.bin rkbin/bin/rk35/rk3566_ddr_528MHz_ultra_v1.10.bin rkbin/bin/rk35/rk3566_ddr_920MHz_ultra_v1.10.bin
rkbin/bin/rk35/rk3566_ddr_1056MHz_D4_LP4_4x_eyescan_v1.23.bin rkbin/bin/rk35/rk3566_ddr_1056MHz_v1.23.bin
rkbin/bin/rk35/rk3566_ddr_780MHz_ultra_v1.10.bin
rkbin/bin/rk35/rk3566_ddr_920MHz_v1.23.bin

Does anyone know what the DDR frequency is on the PineTab2?

---

Another question.

There is no bl31 for rk3566 in https://github.com/rockchip-linux/rkbin. However, according to https://github.com/ARM-software/arm-trus...st?plain=1 rk3566 and rk3568 are the same for bl31. Is that right?

Can I use rk3568_bl31_v1.45.elf to build u-boot for rk3566?

Don't laugh too hard, I'm new on that