Merge branch 'master' into next

[platform/kernel/u-boot.git] / common / Kconfig

diff --git a/common/Kconfig b/common/Kconfig
index 3e44acd..b776c5c 100644 (file)
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -809,6 +809,20 @@ config TPL_STACKPROTECTOR
        bool "Stack Protector buffer overflow detection for TPL"
        depends on STACKPROTECTOR && TPL
 
+config BOARD_RNG_SEED
+       bool "Provide /chosen/rng-seed property to the linux kernel"
+       help
+         Selecting this option requires the board to define a
+         board_rng_seed() function, which should return a buffer
+         which will be used to populate the /chosen/rng-seed property
+         in the device tree for the OS being booted.
+
+         It is up to the board code (and more generally the whole
+         BSP) where and how to store (or generate) such a seed, how
+         to ensure a given seed is only used once, how to create a
+         new seed for use on subsequent boots, and whether or not the
+         kernel should account any entropy from the given seed.
+
 endmenu
 
 menu "Update support"