Rockchip RK3399 - 移植uboot 2023.04_ZenDei技術網路在線

開發板：NanoPC-T4開發板eMMC：16GBLPDDR3：4GB顯示屏：15.6 HDMI介面顯示屏u-boot ：2023.04 在前面我們已經介紹了編譯Rockchip官方提供的uboot源碼，並下載到開發板中進行測試運行。這一節我們嘗試下載最新的uboot版本試試，當前最新版本為2023 ...

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開發板：NanoPC-T4開發板
eMMC：16GB
LPDDR3：4GB
顯示屏：15.6 HDMI介面顯示屏
u-boot ：2023.04
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在前面我們已經介紹了編譯Rockchip官方提供的uboot源碼，並下載到開發板中進行測試運行。這一節我們嘗試下載最新的uboot版本試試，當前最新版本為2023.04。

一、uboot

1.1 下載源碼

u-boot軟體包下載網站：https://ftp.denx.de/pub/u-boot/。

DENX相關的網站：http://www.denx.de/re/DPLG.html。

u-boot git倉庫：https://gitlab.denx.de/u-boot/u-boot。

我們在ubuntu運行如下命令：

root@zhengyang:/work/sambashare/rk3399# wget https://ftp.denx.de/pub/u-boot/u-boot-2023.04.tar.bz2

解壓：

root@zhengyang:/work/sambashare/rk3399# tar -jxf u-boot-2023.04.tar.bz2

進入到uboot文件夾里，這就是我們需要的uboot的源碼了：

root@zhengyang:/work/sambashare/rk3399#  cd u-boot-2023.04
root@zhengyang:/work/sambashare/rk3399/u-boot-2023.04# ll
總用量 484
drwxrwxr-x  25 root root  4096 Apr  4 04:38 ./
drwxr-xr-x  14 root root  4096 May 21 15:22 ../
drwxrwxr-x   2 root root  4096 Apr  4 04:38 api/
drwxrwxr-x  14 root root  4096 Apr  4 04:38 arch/
-rw-rw-r--   1 root root 21095 Apr  4 04:38 .azure-pipelines.yml
drwxrwxr-x 177 root root  4096 Apr  4 04:38 board/
drwxrwxr-x   2 root root  4096 Apr  4 04:38 boot/
-rw-rw-r--   1 root root   814 Apr  4 04:38 .checkpatch.conf
drwxrwxr-x  10 root root  4096 Apr  4 04:38 cmd/
drwxrwxr-x   5 root root  4096 Apr  4 04:38 common/
-rw-rw-r--   1 root root  2180 Apr  4 04:38 config.mk
drwxrwxr-x   2 root root 57344 Apr  4 04:38 configs/
drwxrwxr-x   2 root root  4096 Apr  4 04:38 disk/
drwxrwxr-x  20 root root  4096 Apr  4 04:38 doc/
drwxrwxr-x  74 root root  4096 Apr  4 04:38 drivers/
drwxrwxr-x   2 root root  4096 Apr  4 04:38 dts/
drwxrwxr-x   2 root root  4096 Apr  4 04:38 env/
drwxrwxr-x   4 root root  4096 Apr  4 04:38 examples/
drwxrwxr-x  15 root root  4096 Apr  4 04:38 fs/
-rw-rw-r--   1 root root    44 Apr  4 04:38 .get_maintainer.conf
-rw-rw-r--   1 root root   207 Apr  4 04:38 .gitattributes
drwxrwxr-x   2 root root  4096 Apr  4 04:38 .github/
-rw-rw-r--   1 root root  1115 Apr  4 04:38 .gitignore
-rw-rw-r--   1 root root 14133 Apr  4 04:38 .gitlab-ci.yml
drwxrwxr-x  36 root root 20480 Apr  4 04:38 include/
-rw-rw-r--   1 root root   783 Apr  4 04:38 Kbuild
-rw-rw-r--   1 root root 20750 Apr  4 04:38 Kconfig
drwxrwxr-x  24 root root  4096 Apr  4 04:38 lib/
drwxrwxr-x   2 root root  4096 Apr  4 04:38 Licenses/
-rw-rw-r--   1 root root  4022 Apr  4 04:38 .mailmap
-rw-rw-r--   1 root root 42030 Apr  4 04:38 MAINTAINERS
-rw-rw-r--   1 root root 81547 Apr  4 04:38 Makefile
drwxrwxr-x   2 root root  4096 Apr  4 04:38 net/
drwxrwxr-x   5 root root  4096 Apr  4 04:38 post/
-rw-rw-r--   1 root root 94985 Apr  4 04:38 README
-rw-rw-r--   1 root root   491 Apr  4 04:38 .readthedocs.yml
drwxrwxr-x   6 root root  4096 Apr  4 04:38 scripts/
drwxrwxr-x  17 root root  4096 Apr  4 04:38 test/
drwxrwxr-x  15 root root  4096 Apr  4 04:38 tools/

1.2 配置uboot

uboot的編譯分為兩步：配置、編譯。單板的預設配置在configs目錄下，這裡我們直接選擇configs/evb-rk3399_defconfig，這是Rockchip評估板的配置：

CONFIG_ARM=y
CONFIG_SKIP_LOWLEVEL_INIT=y
CONFIG_COUNTER_FREQUENCY=24000000
CONFIG_ARCH_ROCKCHIP=y
CONFIG_TEXT_BASE=0x00200000
CONFIG_NR_DRAM_BANKS=1
CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x300000
CONFIG_ENV_OFFSET=0x3F8000
CONFIG_DEFAULT_DEVICE_TREE="rk3399-evb"
CONFIG_DM_RESET=y
CONFIG_ROCKCHIP_RK3399=y
CONFIG_TARGET_EVB_RK3399=y
CONFIG_SPL_STACK=0x400000
CONFIG_DEBUG_UART_BASE=0xFF1A0000
CONFIG_DEBUG_UART_CLOCK=24000000
CONFIG_SYS_LOAD_ADDR=0x800800
CONFIG_DEBUG_UART=y
CONFIG_DEFAULT_FDT_FILE="rockchip/rk3399-evb.dtb"
CONFIG_DISPLAY_BOARDINFO_LATE=y
CONFIG_SPL_MAX_SIZE=0x2e000
CONFIG_SPL_PAD_TO=0x7f8000
CONFIG_SPL_HAS_BSS_LINKER_SECTION=y
CONFIG_SPL_BSS_START_ADDR=0x400000
CONFIG_SPL_BSS_MAX_SIZE=0x2000
# CONFIG_SPL_RAW_IMAGE_SUPPORT is not set
# CONFIG_SPL_SHARES_INIT_SP_ADDR is not set
CONFIG_SPL_STACK_R=y
CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN=0x10000
CONFIG_TPL=y
CONFIG_CMD_BOOTZ=y
CONFIG_CMD_GPT=y
CONFIG_CMD_MMC=y
CONFIG_CMD_USB=y
# CONFIG_CMD_SETEXPR is not set
CONFIG_CMD_TIME=y
CONFIG_SPL_OF_CONTROL=y
CONFIG_OF_SPL_REMOVE_PROPS="pinctrl-0 pinctrl-names clock-names interrupt-parent assigned-clocks assigned-clock-rates assigned-clock-parents"
CONFIG_ENV_IS_IN_MMC=y
CONFIG_SYS_RELOC_GD_ENV_ADDR=y
CONFIG_NET_RANDOM_ETHADDR=y
CONFIG_ROCKCHIP_GPIO=y
CONFIG_SYS_I2C_ROCKCHIP=y
CONFIG_MISC=y
CONFIG_MMC_HS400_SUPPORT=y
CONFIG_MMC_DW=y
CONFIG_MMC_DW_ROCKCHIP=y
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_SDMA=y
CONFIG_MMC_SDHCI_ROCKCHIP=y
CONFIG_SF_DEFAULT_SPEED=20000000
CONFIG_ETH_DESIGNWARE=y
CONFIG_GMAC_ROCKCHIP=y
CONFIG_PHY_ROCKCHIP_INNO_USB2=y
CONFIG_PHY_ROCKCHIP_TYPEC=y
CONFIG_PMIC_RK8XX=y
CONFIG_REGULATOR_PWM=y
CONFIG_REGULATOR_RK8XX=y
CONFIG_PWM_ROCKCHIP=y
CONFIG_DM_RNG=y
CONFIG_RNG_ROCKCHIP=y
CONFIG_BAUDRATE=1500000
CONFIG_DEBUG_UART_SHIFT=2
CONFIG_SYS_NS16550_MEM32=y
CONFIG_SYSRESET=y
CONFIG_USB=y
CONFIG_USB_XHCI_HCD=y
CONFIG_USB_XHCI_DWC3=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_GENERIC=y
CONFIG_USB_DWC3=y
CONFIG_USB_DWC3_GENERIC=y
CONFIG_USB_HOST_ETHER=y
CONFIG_USB_ETHER_ASIX=y
CONFIG_USB_ETHER_ASIX88179=y
CONFIG_USB_ETHER_MCS7830=y
CONFIG_USB_ETHER_RTL8152=y
CONFIG_USB_ETHER_SMSC95XX=y
CONFIG_VIDEO=y
# CONFIG_VIDEO_BPP8 is not set
CONFIG_DISPLAY=y
CONFIG_VIDEO_ROCKCHIP=y
CONFIG_VIDEO_ROCKCHIP_MAX_YRES=1200
CONFIG_DISPLAY_ROCKCHIP_MIPI=y
CONFIG_SPL_TINY_MEMSET=y
CONFIG_ERRNO_STR=y

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因此執行如下命令，生成.config文件：

root@zhengyang:/work/sambashare/rk3399/u-boot-2023.04# make evb-rk3399_defconfig V=1

接著我們需要執行make menuconfig做一些配置。

1.2.1 配置串口波特率

uboot中預設的調試串口波特率是1500000，有很多的調試終端不支持1.5M的波特率，我們可以把波特率重新配置下；

Device Drivers  ---> 
      Serial --->     
           (115200) Default baudrate

註意：波特率數值如果無法刪除，按CTRL+回車鍵嘗試。如果配置為1500000，後面測試時串口輸出內容一部分正常，偶爾出現亂碼，考慮是串口波特率太高不穩定造成的，降低波特率到115200嘗試。

這裡我更改為了115200，之前燒錄Rockchip官方uboot時設置為1500000一點問題都沒有，但是uboot官方代碼設置為1500000竟然出現亂碼，看樣uboot官方對RK3399支持並不是很好。

1.2.2 配置eMMC

為什麼要去配置eMMC呢？這個是因為我使用預設配置，編譯後的uboot下載到開發板出現了無法對eMMC進行讀寫的問題，並且輸出瞭如下錯誤：

sdhci_transfer_data: Error detected in status(0x208000)

然後我去比對了當前版本uboot和Rockchip官方（Rockchip RK3399 - TPL/SPL方式載入uboot）提供的uboot單板配置configs/evb-rk3399_defconfig的差異，發現當前版本預設開啟了以下配置：

CONFIG_MMC_HS400_SUPPORT=y   # 多出了這個
CONFIG_MMC_DW=y
CONFIG_MMC_DW_ROCKCHIP=y
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_SDMA=y  # 多出了這個

那CONFIG_MMC_HS400_SUPPOR、CONFIG_MMC_SDHCI_SDMA是什麼呢?

CONFIG_MMC_HS400_SUPPORT 是一個配置選項，用於支持嵌入式設備中的高速 MMC（Multimedia Card）/SD（Secure Digital）卡，預設情況下未啟用。

啟用這個選項可以讓MMC/SD卡在HS400模式下運行，從而提高讀寫速度，但是需要確保硬體上支持 HS400 模式，並且晶元廠商提供了對應的驅動程式。如果硬體不支持或驅動程式不可用，則啟用此選項將會導致系統無法正常啟動。

既然我們已經明白了該配置項的作用，那我們就要看一下我們的eMMC晶元是否支持HS400模式，這裡用的開發板板載的eMMC型號為：KLMAG2WEMB-B031，找到晶元的datasheet有關HS400 mode的信息，具體定位到EXT_CSD第196個位元組DEVICE_TYPE，其值為0x57；可以看到eMMC工作在HS400模式時，電壓要求為1.8V。

配置項CONFIG_MMC_SDHCI_SDMA用於啟用SD/SDIO/MMC 主機控制器使用 DMA 方式進行數據傳輸。

這裡我們暫且將CONFIG_MMC_HS400_SUPPORT，CONFIG_MMC_SDHCI_SDMA配置關掉：

Device Drivers  ---> 
      MMC Host controller Support  --->
            [ ] MMC debugging
            [ ] enable HS400 support  
            [ ] Support IO voltage configuration
            [ ] Support SDHCI SDMA

如果想查看eMMC讀寫命令信息，可以打開MMC debuging。

1.2.3 配置FIT

Boot options  --->    
     Boot images  --->
         [*] Use a script to generate the .its script                                                 
        (arch/arm/mach-rockchip/make_fit_atf.py) .its file generator script for U-Boot FIT image

我們之前介紹過在生成u-boot.itb文件時，需要執行如下命令：

tools/mkimage -f u-boot.its u-boot.itb

mkimage將its文件以及對應的image data file，打包成一個itb文件，也就是uboot可以識別的image file（FIT-uImage）。

因為mkimage是根據its文件中的描述來打包鏡像生成itb文件（FIT-uImage），所以首先需要製作一個its文件，在its文件中描述需要被打包的鏡像，主要是bl31.bin，dtb文件，u-boot-nodtb.bin。

這裡我們需要使用到arch/arm/mach-rockchip/make_fit_atf.py文件，這個是從Rockchip官網uboot下拷貝過來的，內容如下，這是一個python腳本，主要就是生成一個u-boot.its文件：

#!/usr/bin/env python2
"""
A script to generate FIT image source for rockchip boards
with ARM Trusted Firmware
and multiple device trees (given on the command line)

usage: $0 <dt_name> [<dt_name> [<dt_name] ...]
"""

import os
import sys
import getopt

# pip install pyelftools
from elftools.elf.elffile import ELFFile
from elftools.elf.sections import SymbolTableSection
from elftools.elf.segments import Segment, InterpSegment, NoteSegment

ELF_SEG_P_TYPE='p_type'
ELF_SEG_P_PADDR='p_paddr'
ELF_SEG_P_VADDR='p_vaddr'
ELF_SEG_P_OFFSET='p_offset'
ELF_SEG_P_FILESZ='p_filesz'
ELF_SEG_P_MEMSZ='p_memsz'

DT_HEADER="""/*
 * Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd
 *
 * Minimal dts for a SPL FIT image payload.
 *
 * SPDX-License-Identifier: GPL-2.0+  X11
 */
/dts-v1/;

/ {
        description = "Configuration to load ATF before U-Boot";
        #address-cells = <1>;

        images {
                uboot {
                        description = "U-Boot (64-bit)";
                        data = /incbin/("u-boot-nodtb.bin");
                        type = "standalone";
                        os = "U-Boot";
                        arch = "arm64";
                        compression = "none";
                        load = <0x%08x>;
                        hash {
                                algo = "sha256";
                        };
                };
"""

DT_IMAGES_NODE_END="""
        };
"""

DT_END="""
};
"""

def append_atf_node(file, atf_index, phy_addr):
    """
    Append ATF DT node to input FIT dts file.
    """
    data = 'bl31_0x%08x.bin' % phy_addr
    print >> file, '\t\tatf@%d {' % atf_index
    print >> file, '\t\t\tdescription = \"ARM Trusted Firmware\";'
    print >> file, '\t\t\tdata = /incbin/("%s");' % data
    print >> file, '\t\t\ttype = "firmware";'
    print >> file, '\t\t\tarch = "arm64";'
    print >> file, '\t\t\tos = "arm-trusted-firmware";'
    print >> file, '\t\t\tcompression = "none";'
    print >> file, '\t\t\tload = <0x%08x>;' % phy_addr
    if atf_index == 1:
        print >> file, '\t\t\tentry = <0x%08x>;' % phy_addr
    print >> file, '\t\t\thash {'
    print >> file, '\t\t\t\talgo = "sha256";'
    print >> file, '\t\t\t};'
    print >> file, '\t\t};'
    print >> file, ''

def append_fdt_node(file, dtbs):
    """
    Append FDT nodes.
    """
    cnt = 1
    for dtb in dtbs:
        dtname = os.path.basename(dtb)
        print >> file, '\t\tfdt {'
        print >> file, '\t\t\tdescription = "U-Boot device tree blob";'
        print >> file, '\t\t\tdata = /incbin/("u-boot.dtb");'
        print >> file, '\t\t\ttype = "flat_dt";'
        print >> file, '\t\t\tarch = "arm64";'
        print >> file, '\t\t\tcompression = "none";'
        print >> file, '\t\t\thash {'
        print >> file, '\t\t\t\talgo = "sha256";'
        print >> file, '\t\t\t};'
        print >> file, '\t\t};'
        print >> file, ''
        cnt = cnt + 1

def append_conf_section(file, cnt, dtname, atf_cnt):
    print >> file, '\t\tconfig {'
    print >> file, '\t\t\tdescription = "Rockchip armv8 with ATF";'
    print >> file, '\t\t\trollback-index = <0x0>;'
    print >> file, '\t\t\tfirmware = "atf@1";'
    print >> file, '\t\t\tloadables = "uboot",',
    for i in range(1, atf_cnt):
        print >> file, '"atf@%d"' % (i+1),
        if i != (atf_cnt - 1):
            print >> file, ',',
        else:
            print >> file, ';'
    print >> file, '\t\t\tfdt = "fdt";'
    print >> file, '\t\t\tsignature {'
    print >> file, '\t\t\t\talgo = "sha256,rsa2048";'
    print >> file, '\t\t\t\tpadding = "pss";'
    print >> file, '\t\t\t\tkey-name-hint = "dev";'
    print >> file, '\t\t\t\tsign-images = "fdt", "firmware", "loadables";'
    print >> file, '\t\t\t};'
    print >> file, '\t\t};'
    print >> file, ''

def append_conf_node(file, dtbs, atf_cnt):
    """
    Append configeration nodes.
    """
    cnt = 1
    print >> file, '\tconfigurations {'
    print >> file, '\t\tdefault = "config";'
    for dtb in dtbs:
        dtname = os.path.basename(dtb)
        append_conf_section(file, cnt, dtname, atf_cnt)
        cnt = cnt + 1
    print >> file, '\t};'
    print >> file, ''

def generate_atf_fit_dts(fit_file_name, bl31_file_name, uboot_file_name, dtbs_file_name):
    """
    Generate FIT script for ATF image.
    """
    if fit_file_name != sys.stdout:
        fit_file = open(fit_file_name, "wb")
    else:
        fit_file = sys.stdout

    num_load_seg = 0
    p_paddr = 0xFFFFFFFF
    with open(uboot_file_name) as uboot_file:
        uboot = ELFFile(uboot_file)
        for i in range(uboot.num_segments()):
            seg = uboot.get_segment(i)
            if ('PT_LOAD' == seg.__getitem__(ELF_SEG_P_TYPE)):
                p_paddr = seg.__getitem__(ELF_SEG_P_PADDR)
                num_load_seg = num_load_seg + 1

    assert (p_paddr != 0xFFFFFFFF and num_load_seg == 1)

    print >> fit_file, DT_HEADER % p_paddr

    with open(bl31_file_name) as bl31_file:
        bl31 = ELFFile(bl31_file)
        for i in range(bl31.num_segments()):
            seg = bl31.get_segment(i)
            if ('PT_LOAD' == seg.__getitem__(ELF_SEG_P_TYPE)):
                paddr = seg.__getitem__(ELF_SEG_P_PADDR)
                p= seg.__getitem__(ELF_SEG_P_PADDR)
                append_atf_node(fit_file, i+1, paddr)
    atf_cnt = i+1
    append_fdt_node(fit_file, dtbs_file_name)
    print >> fit_file, '%s' % DT_IMAGES_NODE_END
    append_conf_node(fit_file, dtbs_file_name, atf_cnt)
    print >> fit_file, '%s' % DT_END

    if fit_file_name != sys.stdout:
        fit_file.close()

def generate_atf_binary(bl31_file_name):
    with open(bl31_file_name) as bl31_file:
        bl31 = ELFFile(bl31_file)

        num = bl31.num_segments()
        for i in range(num):
            seg = bl31.get_segment(i)
            if ('PT_LOAD' == seg.__getitem__(ELF_SEG_P_TYPE)):
                paddr = seg.__getitem__(ELF_SEG_P_PADDR)
                file_name = 'bl31_0x%08x.bin' % paddr
                with open(file_name, "wb") as atf:
                    atf.write(seg.data());

def get_bl31_segments_info(bl31_file_name):
    """
    Get load offset, physical offset, file size
    from bl31 elf file program headers.
    """
    with open(bl31_file_name) as bl31_file:
        bl31 = ELFFile(bl31_file)

        num = bl31.num_segments()
        print 'Number of Segments : %d' % bl31.num_segments()
        for i in range(num):
            print 'Segment %d' % i
            seg = bl31.get_segment(i)
            ptype = seg[ELF_SEG_P_TYPE]
            poffset = seg[ELF_SEG_P_OFFSET]
            pmemsz = seg[ELF_SEG_P_MEMSZ]
            pfilesz = seg[ELF_SEG_P_FILESZ]
            print 'type: %s\nfilesz: %08x\nmemsz: %08x\noffset: %08x' % (ptype, pfilesz, pmemsz, poffset)
            paddr = seg[ELF_SEG_P_PADDR]
            print 'paddr: %08x' % paddr

def main():
    uboot_elf="./u-boot"
    bl31_elf="./bl31.elf"
    FIT_ITS=sys.stdout

    opts, args = getopt.getopt(sys.argv[1:], "o:u:b:h")
    for opt, val in opts:
        if opt == "-o":
            FIT_ITS=val
        elif opt == "-u":
            uboot_elf=val
        elif opt == "-b":
            bl31_elf=val
        elif opt == "-h":
            print __doc__
            sys.exit(2)

    dtbs = args
    #get_bl31_segments_info("u-boot")
    #get_bl31_segments_info("bl31.elf")

    generate_atf_fit_dts(FIT_ITS, bl31_elf, uboot_elf, dtbs)
    generate_atf_binary(bl31_elf);

if __name__ == "__main__":
    main()

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拷貝命令過來：

root@zhengyang:/work/sambashare/rk3399/u-boot-2023.04# cp ../u-boot/arch/arm/mach-rockchip/make_fit_atf.py ./arch/arm/mach-rockchip/

1.2.4 配置uboot啟動倒計時

如果在uboot啟動倒計時結束之前，沒有按下任何鍵，將會執行那麼將執行也就是bootcmd中配置中的命令，bootcmd中保存著預設的啟動命令。

(5) delay in seconds before automatically booting

保存文件，輸入文件名為evb-rk3399_defconfig ，在當前路徑下生成evb-rk3399_defconfig ，存檔：

root@zhengyang:/work/sambashare/rk3399/u-boot# mv evb-rk3399_defconfig ./configs/

註意：如果需要配置生效，需要使用make distclean清除之前的配置，重新執行配置命令。

1.3 編譯uboot

執行make命令，生成u-boot文件:

root@zhengyang:/work/sambashare/rk3399/u-boot# make ARCH=arm CROSS_COMPILE=arm-linux-

然後出現瞭如下錯誤：

binman: Filename 'atf-bl31' not found in input path (.,.,./board/rockchip/evb_rk3399,arch/arm/dts) (cwd='/work/sambashare/rk3399/u-boot-2023.04')

大致意思就是缺少了bl31.elf文件，我們將Rockchip RK3399 - TPL/SPL方式載入uboot章節製作的bl31.elf拷貝到uboot根目錄下：

root@zhengyang:/work/sambashare/rk3399/u-boot-2023.04# cp /work/sambashare/rk3399/arm-trusted-firmware/build/rk3399/release/bl31/bl31.elf ./
root@zhengyang:/work/sambashare/rk3399/u-boot-2023.04# cp bl31.elf atf-bl31

重新編譯，可以看到在 ./spl、./tpl目錄下生成鏡像文件：

root@zhengyang:/work/sambashare/rk3399/u-boot-2023.04# ls tpl/u-boot*
tpl/u-boot.cfg      tpl/u-boot-tpl      tpl/u-boot-tpl.dtb      tpl/u-boot-tpl.map        tpl/u-boot-tpl.sym
tpl/u-boot-spl.lds  tpl/u-boot-tpl.bin  tpl/u-boot-tpl-dtb.bin  tpl/u-boot-tpl-nodtb.bin
root@zhengyang:/work/sambashare/rk3399/u-boot-2023.04# ls spl/u-boot*
spl/u-boot.cfg  spl/u-boot-spl.bin  spl/u-boot-spl-dtb.bin  spl/u-boot-spl.map        spl/u-boot-spl.sym
spl/u-boot-sp