SPI flash device on HiFive Unleashed has 32MiB Size.
This patch add SPI flash environment after U-Boot proper partition with a size of 128KiB.
SPI flash partition layout(32MiB): 0 - 34 : reserved for GPT header 35 - 39 : unused 40 - 2087 : loader1 (SPL, FSBL) 2088 - 10279 : loader2 (U-Boot proper, U-Boot) 10280 - 10535 : environment 10536 - 65494 : rootfs 65528 - 65536 : distro script
Note: the loader1 must start from 40th sector even though there are 6 free sectors prior since 40th sector is nearest flash sector boundary.
Signed-off-by: Jagan Teki jagan@amarulasolutions.com --- Changes for v2: - move env offsets from generic to cpu Kconfig
arch/riscv/cpu/fu540/Kconfig | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/arch/riscv/cpu/fu540/Kconfig b/arch/riscv/cpu/fu540/Kconfig index 7a813a9ac8..417926d2cf 100644 --- a/arch/riscv/cpu/fu540/Kconfig +++ b/arch/riscv/cpu/fu540/Kconfig @@ -15,3 +15,16 @@ config SIFIVE_FU540 imply SPL_CPU_SUPPORT imply SPL_OPENSBI imply SPL_LOAD_FIT + +if CONFIG_ENV_IS_IN_SPI_FLASH + +config ENV_OFFSET + default 0x505000 + +config ENV_SIZE + default 0x20000 + +config ENV_SECT_SIZE + default 0x10000 + +endif # CONFIG_ENV_IS_IN_SPI_FLASH