On Thu, Jan 16, 2020 at 9:21 AM Bin Meng bmeng.cn@gmail.com wrote:
At present U-Boot environment is not saved so it's a little bit inconvenient if booting kernel via network as each time we need input the network environment variables from U-Boot shell.
We already have the MMC support and let's enable saveenv with that.
Does this also mean we can use fw_setenv and fw_printenv from the Linux user-space? How does one need to format partitions / prepare uSD card for this?
Currently I have 4 GPT partitions: - /boot (ext4) - FSBL (raw) - OpenSBI + U-Boot (raw) - rootfs (ext4)
david
Signed-off-by: Bin Meng bmeng.cn@gmail.com
configs/sifive_fu540_defconfig | 2 ++ include/configs/sifive-fu540.h | 2 ++ 2 files changed, 4 insertions(+)
diff --git a/configs/sifive_fu540_defconfig b/configs/sifive_fu540_defconfig index 7d38ec9..6f9e619 100644 --- a/configs/sifive_fu540_defconfig +++ b/configs/sifive_fu540_defconfig @@ -1,5 +1,6 @@ CONFIG_RISCV=y CONFIG_ENV_SIZE=0x20000 +CONFIG_ENV_OFFSET=0x1000000 CONFIG_NR_DRAM_BANKS=1 CONFIG_TARGET_SIFIVE_FU540=y CONFIG_ARCH_RV64I=y @@ -11,5 +12,6 @@ CONFIG_DEFAULT_DEVICE_TREE="hifive-unleashed-a00" CONFIG_DISPLAY_CPUINFO=y CONFIG_DISPLAY_BOARDINFO=y CONFIG_OF_SEPARATE=y +CONFIG_ENV_IS_IN_MMC=y CONFIG_SYS_RELOC_GD_ENV_ADDR=y CONFIG_DM_MTD=y diff --git a/include/configs/sifive-fu540.h b/include/configs/sifive-fu540.h index 2756ed5..fb829be 100644 --- a/include/configs/sifive-fu540.h +++ b/include/configs/sifive-fu540.h @@ -24,6 +24,8 @@
/* Environment options */
+#define CONFIG_SYS_MMC_ENV_DEV 0
#define BOOT_TARGET_DEVICES(func) \ func(MMC, mmc, 0) \ func(DHCP, dhcp, na) -- 2.7.4