riscv: Enable SPI flash env for SiFive Unmatched.

Enable saving environment to SPI flash memory on SiFive
Unmatched.

Signed-off-by: Thomas Skibo <thomas-git@skibo.net>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>

diff --git a/arch/riscv/cpu/fu740/Kconfig b/arch/riscv/cpu/fu740/Kconfig
index 049a0a0..3e0c1fd 100644 (file)
--- a/arch/riscv/cpu/fu740/Kconfig
+++ b/arch/riscv/cpu/fu740/Kconfig
@@ -40,3 +40,16 @@ config SIFIVE_FU740
        imply DM_I2C
        imply SYS_I2C_OCORES
        imply SPL_I2C
+
+if ENV_IS_IN_SPI_FLASH
+
+config ENV_OFFSET
+       default 0x505000
+
+config ENV_SIZE
+       default 0x20000
+
+config ENV_SECT_SIZE
+       default 0x10000
+
+endif # ENV_IS_IN_SPI_FLASH

diff --git a/board/sifive/unmatched/Kconfig b/board/sifive/unmatched/Kconfig
index fb2c1fb..fe213fd 100644 (file)
--- a/board/sifive/unmatched/Kconfig
+++ b/board/sifive/unmatched/Kconfig
@@ -26,6 +26,7 @@ config SPL_OPENSBI_LOAD_ADDR
 config BOARD_SPECIFIC_OPTIONS # dummy
        def_bool y
        select SIFIVE_FU740
+       select ENV_IS_IN_SPI_FLASH
        select SUPPORT_SPL
        select RESET_SIFIVE
        select BINMAN