I cannot find saveenv command in u-boot command list, don’t Nano support saving environment variables?
Thanks!
I think we are using “setenv” only.
So I have to set environment variables every time when I want to try something in u-boot?
Can environment variables be read from the micro sd card / write to the micro sd card (or maybe the spi flash)?
Thanks!
saveenv seems work in old release. Need to check why it is missing here.
I will reply once find something.
Please add this patch to u-boot to enable saving env to sdcard.
---
diff --git a/include/configs/p3450-porg.h b/include/configs/p3450-porg.h
index 69c5106..417a9f5 100644
--- a/include/configs/p3450-porg.h
+++ b/include/configs/p3450-porg.h
@@ -31,8 +31,11 @@
#define BOOT_TARGET_DEVICES(func) \
func(MMC, mmc, 1)
-/* Environment s/b at end of SPI, fix it later */
-#define CONFIG_ENV_IS_NOWHERE
+/* Environment is on SD (mmc1), in filesystem (APP partition, part #1) */
+#define CONFIG_ENV_IS_IN_EXT4
+#define EXT4_ENV_INTERFACE "mmc"
+#define EXT4_ENV_DEVICE_AND_PART "1:1"
+#define EXT4_ENV_FILE "/boot/uboot.env"
/* SPI */
#define CONFIG_SF_DEFAULT_MODE SPI_MODE_0
1 Like
Your patch works on L4T 32.1 u-boot.
Thanks a lot!