Tom >>> >>> Yes you are correct. >>> But what is happening here is, the CONFIG_DFU_<MMC/NAND/SF/TFTP> selected >>> through Kconfig/Menuconfig is applicable for both SPL and U-Boot. >>> Hence CONFIG_DFU_MMC/NA >ND/SF gets compiled for SPL as well, which needs run_command(). Actually >CONFIG_DFU_MMC/NAND/etc is not scoped for SPL-DFU. >>> As we have aligned, not to increase the SPL size, user shall use SPL-DFU >>> feature to boot to u-boot, then utilize the full featured DFU to flash >>> MMC/NAND/SF. >>> >>> I get undefined reference to common function run_command(), >>> "dfu_fill_entitiy_<mmc/nand/sf>" in driver/dfu/dfu.c. >>> The dfu.c is common for both SPL-DFU and U-boot.
>>OK. I think we need to introduce SPL_DFU_xxx Kconfig options, and use >>CONFIG_IS_ENABLED(DFU_xxx) so that we will get things enabled/disabled (and >>discarded) as needed. >Ok, will do. Correct me if I am wrong, I need understand if we introduce say SPL_DFU_MMC Kconfig options, then whether need to support DFU_MMC in SPL ? Again this will increase the SPL-size, and also DFU_MMC uses run_command() again, there is dependency of cli.c, hush etc. Regards Ravi _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot