> > > > Then I think if I don't want enter this auto flow, what can I do ? > > > > 1 Remove CONFIG_DISTRO_DEFAULTS=y from nx25-ae250_defconfig But it > > still enter auto flow. > > > > 2 Add #ifdef CONFIG_DISTRO_DEFAULTS to encapsulate the > > CONFIG_EXTRA_ENV_SETTINGS in nx25-ae250.h And Remove > > CONFIG_DISTRO_DEFAULTS=y from nx25-ae250_defconfig And it will NOT > > enter auto flow > > > > #ifdef CONFIG_DISTRO_DEFAULTS > > /* Enable distro boot */ > > #define BOOT_TARGET_DEVICES(func) \ > > func(MMC, mmc, 0) \ > > func(DHCP, dhcp, na) > > > > #include <config_distro_bootcmd.h> > > > > #define CONFIG_EXTRA_ENV_SETTINGS \ > > "kernel_addr_r=0x00080000\0" \ > > "pxefile_addr_r=0x01f00000\0" \ > > "scriptaddr=0x01f00000\0" \ > > "fdt_addr_r=0x02000000\0" \ > > "ramdisk_addr_r=0x02800000\0" \ > > BOOTENV #endif > > > > 3 Add #ifdef CONFIG_DISTRO_DEFAULTS to encapsulate the > > CONFIG_EXTRA_ENV_SETTINGS in nx25-ae250.h And do NOT Remove > > CONFIG_DISTRO_DEFAULTS=y from nx25-ae250_defconfig But disable > CONFIG_DISTRO_DEFAULTS from make menuconfig > > General setup ---> > > [ ] Select defaults suitable for booting general purpose Linux > > distributions And it still enter auto flow > > > > Offering this information for you. > > This is the same for all distro enabled boards. The basic idea is that U-Boot > ships > with something that "just boots" for simple use cases. > > If you want something more advanced, you usually want to put something very > target specific in there anyway, such as "bootm $nor_flash". In that case, you > adapt the CONFIG_BOOTCOMMAND parameter to whatever you want. > > The boot command can also be overridden using the environment. So if you have > working environment store, you can change the U-Boot variable "bootcmd" and > U-Boot will run that instead when it boots. > > The alternative to this default behavior would be no bootcmd at all which > means > you just get dropped into the U-Boot prompt. While that's reasonably useful > for > developers, it isn't for people deploying U-Boot on real target systems :). > > > Alex
Thanks for your advises. After you send those patchs into main trunk. I will fetch and push them to u-boot-riscv.git :) Rick _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
