TDA4VL-Q1: 关于DFU功能的一些疑问

我的图片都是点击插入选图像这样操作的，我再重新描述插入一遍试试

我们现在软件版本是J721S2 SDK8.0.4

从文档上看，这个平台是没有sysfw.itb的，如下图

但是在代码中，关于dfu_alt_info_emmc的配置，却是有sysfw.itb的，如下图，代码配置的是DFU_ALT_INFO_MMC

我在J721E的文档中看到过关于sysfw.itb与tiboot3.bin合并的说明，并且J721E的代码里，关于dfu_alt_info_emmc的配置也有相关的宏开关控制，如果是J7200平台就会配置DFU_ALT_INFO_EMMC_COMBINED

1、我想确认一下，关于J721S2的dfu_alt_info_emmc的配置，，到底应该用DFU_ALT_INFO_EMMC还是DFU_ALT_INFO_EMMC_COMBINED？

     我曾尝试将DFU_ALT_INFO_EMMC里的sysfw.itb的设置删除，编译后执行dfu烧写EMMC会失败

2、不删除sysfw.itb编译出版本后，先进DFU模式刷写tiboot3.bin   tispl.bin 和  u-boot.img，是成功的，刷完后进fastboot模式刷写rootfs，会失败

    但是这种方法我们在TDA4VM平台J721E上是验证过的，功能都是正常EMMC可以完全烧录成功并开机的，请问是否跟sysfw.itb有关？

Thanks.

您好，我们已收到您的问题并升级到英文论坛寻求帮助，链接如下，如有答复将尽快回复您：

e2e.ti.com/.../tda4vl-q1-dfu-feature

您好，

Guifeng Gao 说：

我想确认一下，关于J721S2的dfu_alt_info_emmc的配置，，到底应该用DFU_ALT_INFO_EMMC还是DFU_ALT_INFO_EMMC_COMBINED？

     我曾尝试将DFU_ALT_INFO_EMMC里的sysfw.itb的设置删除，编译后执行dfu烧写EMMC会失败

这个问题确实存在，感谢您的提醒，我们会在之后改进该问题。

Guifeng Gao 说：

2、不删除sysfw.itb编译出版本后，先进DFU模式刷写tiboot3.bin   tispl.bin 和  u-boot.img，是成功的，刷完后进fastboot模式刷写rootfs，会失败

rootfs 的大小是多少，您可以先用 tinyrootfs 来尝试。 

Guifeng Gao 说：

但是这种方法我们在TDA4VM平台J721E上是验证过的，功能都是正常EMMC可以完全烧录成功并开机的，请问是否跟sysfw.itb有关？

闪存问题与 sysfw.itb 无关，您可以先试下使用 tinyrootfs然后看下能否刷写该闪存。 

这是分区大小和编译出来的镜像大小，应该是没问题的。

我只烧写其中一个最小的镜像，也是失败的。

从目前的一些验证结果猜测，怀疑是uboot下的fastboot功能有问题，能否帮忙check下uboot下的usb fastboot功能是否正常？

我先在DFU模式下用dfu.bat烧写完tiboot3.bin   tispl.bin 和  u-boot.img，烧写成功

再从EMMC启动并让系统进入fastboot模式，然后用fastboot_flash.bat进行烧写

但是fastboot失败

log如下，就卡在Starting download，然后就没有任何log了

U-Boot SPL 2021.01 (Feb 23 2023 - 03:39:09 +0000)
SYSFW ABI: 3.1 (firmware rev 0x0008 '8.4.1--v08.04.01 (Jolly Jellyfi')
SPL initial stack usage: 13472 bytes
Trying to boot from MMC1
init_env from device 17 not supported!
Starting ATF on ARM64 core...

NOTICE:  BL31: v2.6(release):v2.7-rc0-dirty
NOTICE:  BL31: Built : 11:58:46, Aug 30 2022
I/TC: 
I/TC: OP-TEE version: 3.17.0-125-g15a746d28 (gcc version 9.2.1 20191025 (GNU Toolchain for the A-profile Architecture 9.2-2019.12 (arm-9.10))) #1 Tue Aug 30 11:59:08 UTC 2022 aarch64
I/TC: WARNING: This OP-TEE configuration might be insecure!
I/TC: WARNING: Please check https://optee.readthedocs.io/en/latest/architecture/porting_guidelines.html
I/TC: Primary CPU initializing
I/TC: SYSFW ABI: 3.1 (firmware rev 0x0008 '8.4.1--v08.04.01 (Jolly Jellyfi')
I/TC: HUK Initialized
I/TC: Primary CPU switching to normal world boot

U-Boot SPL 2021.01 (Feb 23 2023 - 03:44:19 +0000)
SYSFW ABI: 3.1 (firmware rev 0x0008 '8.4.1--v08.04.01 (Jolly Jellyfi')
Trying to boot from MMC1


U-Boot 2021.01 (Feb 23 2023 - 03:44:19 +0000)

SoC:   J721S2 SR1.0 GP
Model: Texas Instruments J721S2 EVM
DRAM:  4 GiB
Flash: 0 Bytes
MMC:   mmc@4f80000: 0, mmc@4fb0000: 1
Loading Environment from MMC... *** Warning - bad CRC, using default environment

In:    serial@2880000
Out:   serial@2880000
Err:   serial@2880000
Failed to probe am65_cpsw_nuss driver
In fastboot ...
[ggf]board_late_init: bootcmd = fastboot -l $loadaddr -s 0x2F000000 usb 0
Net:   No ethernet found.
cdns-usb3-peripheral usb@6000000: Unable to get USB2 phy (ret -61)
cdns-usb3-peripheral usb@6000000: Unable to get USB3 phy (ret -61)
cdns-usb3-peripheral usb@6000000: DRD version v1 (ID: 0004024e, rev: 00000200)
cdns-usb3-peripheral usb@6000000: Initialized  ep0 support:  
cdns-usb3-peripheral usb@6000000: Initialized  ep1out support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep2out support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep3out support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep4out support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep5out support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep6out support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep7out support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep8out support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep9out support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep10out support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep11out support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep12out support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep13out support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep14out support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep15out support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep1in support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep2in support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep3in support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep4in support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep5in support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep6in support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep7in support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep8in support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep9in support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep10in support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep11in support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep12in support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep13in support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep14in support: BULK, INT ISO
cdns-usb3-peripheral usb@6000000: Initialized  ep15in support: BULK, INT ISO
WARNING: unknown variable: is-logical
Starting download of 534864964 bytes

Thanks.

Hi Cherry

我已经在英文论坛上提交的另一个问题中得到了答案，J721S2 uboot不支持fastboot。