Hi Jonas, thank You, i tried my best to follow your hints as good as possible. This is what i did:
- git clone https://github.com/rockchip-linux/rkbin - git clone https://github.com/u-boot/u-boot - modified the following files: ``` diff --git a/arch/arm/dts/rk3568-generic.dts b/arch/arm/dts/rk3568-generic.dts index 88eb1bfd..847ebd51 100644 --- a/arch/arm/dts/rk3568-generic.dts +++ b/arch/arm/dts/rk3568-generic.dts @@ -16,7 +16,7 @@ }; chosen { - stdout-path = "serial2:1500000n8"; + stdout-path = "serial1:1500000n8"; }; }; @@ -43,6 +43,7 @@ status = "okay"; }; -&uart2 { +&uart1 { status = "okay"; }; + diff --git a/configs/generic-rk3568_defconfig b/configs/generic-rk3568_defconfig index e7d5e55b..aeb117e7 100644 --- a/configs/generic-rk3568_defconfig +++ b/configs/generic-rk3568_defconfig @@ -6,7 +6,7 @@ CONFIG_NR_DRAM_BANKS=2 CONFIG_DEFAULT_DEVICE_TREE="rk3568-generic" CONFIG_ROCKCHIP_RK3568=y CONFIG_SPL_SERIAL=y -CONFIG_DEBUG_UART_BASE=0xFE660000 +CONFIG_DEBUG_UART_BASE=0xFE650000 CONFIG_DEBUG_UART_CLOCK=24000000 CONFIG_SYS_LOAD_ADDR=0xc00800 CONFIG_DEBUG_UART=y ``` - modified this file: ``` diff --git a/tools/ddrbin_param.txt b/tools/ddrbin_param.txt index 0dfdd31..826f927 100644 --- a/tools/ddrbin_param.txt +++ b/tools/ddrbin_param.txt @@ -9,7 +9,7 @@ lp4_freq= lp4x_freq= lp5_freq= -uart id= +uart id=1 uart iomux= uart baudrate= ``` - Runned the following command: # ./ddrbin_tool rk3566 ddrbin_param.txt ~/rkbin/bin/rk35/rk3566_ddr_920MHz_v1.21.bin version v1.19 20240117 chip rk3566 version 5 new bin config: uart id: 1 modify end The file modification date changed, so i assume it should be ok. - Runned the following commands: # CROSS_COMPILE=aarch64-linux-gnu- ARCH=arm64 make generic-rk3568_defconfig O="build/generic-rk3568_defconfig" #ROCKCHIP_TPL='~/rkbin/bin/rk35/rk3566_ddr_920MHz_v1.21.bin' BL31='~/rkbin/bin/rk35/rk3568_bl31_v1.44.elf' CROSS_COMPILE=aarch64-linux-gnu- make O="build/generic-rk3568_defconfig" I have acquired the MiniLoaderAll.bin via extracting the official update.img from the vendor. # rkdeveloptool db MiniLoaderAll.bin # rkdeveloptool wl 64 '~/u-boot/build/generic-rk3568_defconfig/u-boot-rockchip.bin' - Then i have connected my USB-UART adapter to BOARD PIN 8 (GND) -> USB UART PIN GND BOARD PIN 10 (UART1_TX) -> USB UART PIN RX BOARD PIN 12 (UART1_RX) -> USB UART PIN TX - Started minicom: # minicom -D /dev/ttyUSB0 -b 1500000 But i still don't get any output at all. Any idea what iam i doing wrong here? Best Regards, -- ext Jonas Karlman írta 2024. ápr.. 8, H-n 21:31 órakor: > Hi Z, > > On 2024-04-08 09:40, Mizsei Zoltán wrote: >> Hi, >> >> I'm trying to get a mainline U-Boot running on the Geniatech XPI-3566-ZERO >> RK3566 based SBC [1], but all my attempts have failed so far. >> >> The SBC doesn't have any SD-Card slot, please keep this in mind! >> >> I can build U-Boot, but when I write the resulting binary to the eMMC using >> rkdeveloptool, the boot stops and I see no output on the UART pins using >> 1500000 baud transfer rate. >> >> My steps were the following: >> >> - git clone https://github.com/u-boot/u-boot >> - cd u-boot >> - CROSS_COMPILE=aarch64-linux-gnu- ARCH=arm64 make rk3568_defconfig > > There is no rk3568_defconfig target but generic-rk3568_defconfig may > work better. > >> - ROCKCHIP_TPL='rkbin/bin/rk35/rk3566_ddr_1056MHz_v1.21.bin' >> BL31='rkbin/bin/rk35/rk3568_bl31_v1.44.elf' CROSS_COMPILE=aarch64-linux-gnu- >> make >> - rkdeveloptool db MiniLoaderAll.bin >> - rkdeveloptool wl 64 u-boot-rockchip.bin >> >> After that I can no longer communicate with the board via UART and it no >> longer boots. > > After looking at the specification for this board it looks like GPIO > pin 8 and 10 is connected to uart1 and not uart2 that is typically used > for debug uart on rockchip devices. > >> >> I've built uboot countless times, I've followed all sorts of guides, I've >> tried modifying FDT and transplanting the DTS from the official SDK, I have >> tried vanilla defconfigs and tried to modify them aswell, I think I've tried >> everything, but no matter what I do I just can't get it working. >> The vendored U-Boot works ok, but I plant to run OpenBSD, for which an >> upstream U-Boot would be better situated (according to the OBSD mailing >> list). >> >> Please give me some hints because I'm running out of ideas. I've spent >> countless hours trying to get this to work but haven't succeeded. > > You can try changing stdout-path to "serial1:1500000n8" and enable the > uart1 node in generic-rk3568.dts. > Also change to CONFIG_DEBUG_UART_BASE=0xFE650000, and also use rkbin > tools/ddrbin_tool and change to use uart1 on ddr bin. > > After that you should probably start seeing something on uart and that > may help you get a little bit further. > > Regards, > Jonas > >> >> Thank You very much! >> >> Best Regards, >> >> --Z-- >> >> [1] https://www.geniatech.com/product/xpi-3566-zero/ -- --Z--
