diff options
Diffstat (limited to 'common/Kconfig')
| -rw-r--r-- | common/Kconfig | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/common/Kconfig b/common/Kconfig index 77ad47b4b6..86eefa2e93 100644 --- a/common/Kconfig +++ b/common/Kconfig @@ -432,6 +432,45 @@ config ENV_IS_IN_NVRAM can just be read and written to, without any special provision. +config ENV_IS_IN_SPI_FLASH + bool "Environment is in SPI flash" + depends on !CHAIN_OF_TRUST + help + Define this if you have a SPI Flash memory device which you + want to use for the environment. + + - CONFIG_ENV_OFFSET: + - CONFIG_ENV_SIZE: + + These two #defines specify the offset and size of the + environment area within the SPI Flash. CONFIG_ENV_OFFSET must be + aligned to an erase sector boundary. + + - CONFIG_ENV_SECT_SIZE: + + Define the SPI flash's sector size. + + - CONFIG_ENV_OFFSET_REDUND (optional): + + This setting describes a second storage area of CONFIG_ENV_SIZE + size used to hold a redundant copy of the environment data, so + that there is a valid backup copy in case there is a power failure + during a "saveenv" operation. CONFIG_ENV_OFFSET_REDUND must be + aligned to an erase sector boundary. + + - CONFIG_ENV_SPI_BUS (optional): + - CONFIG_ENV_SPI_CS (optional): + + Define the SPI bus and chip select. If not defined they will be 0. + + - CONFIG_ENV_SPI_MAX_HZ (optional): + + Define the SPI max work clock. If not defined then use 1MHz. + + - CONFIG_ENV_SPI_MODE (optional): + + Define the SPI work mode. If not defined then use SPI_MODE_3. + config ENV_IS_IN_UBI bool "Environment in a UBI volume" depends on !CHAIN_OF_TRUST |