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hello,
硬件:AM62X-SKEVM开发板
在使用eMMC UDA FS模式启动时(FAT32文件系统),基于MBR格式分区(ms dos)可以正常从ROM boot引导到tiboot3(R5F spl),但是使用GPT格式分区却不能正常引导到tiboot3(串口无任何启动日志)。
据我了解的信息,在FAT32文件系统模式下GPT需要配置EFI实现(UEFI)启动,请问AM62X(/AM623X)的ROM boot是否支持UEFI启动模式?有可供参考的链接吗(UEFI配置问题)?
请看下面e2e工程师的回复。
when booting from eMMC, the ROM on AM62x only supports UDA (raw or filesystem) mode, or boot from the eMMC boot partitions. UEFI boot is not supported. I will need to pass this questions on to our software team to see if UEFI is supported in the bootloader.
OK,thanks.
我在另一个E2E的帖子里收到了类似的信息,AM62X对RAW和boot0/boot1启动的支持力度较好,对BIOS和UEFI的支持偏少。目前BIOS启动是没有问题的,原生的SDK中提供的SD卡启动是基于BIOS机制(MSDOS),UEFI在SDK中仍然有代码支撑,只是资料较少需要很大的精力去测试和验证。
抱歉回复晚了,请看下面e2e工程师的回复。
When BOOTMODE pins is configured for booting from eMMC UDA/FS, ROM driver support reading "tiboot3.bin" from MBR format FS, but not GPT(UEFI) format FS.