Modern Linux requires 32 byte seed to initialize random pool, but u-boot currently provides only 8 bytes. Increase rng-seed size to make Linux happy and initialize rng pool instantly.
Boot with 8 byte rng-seed: # dmesg | grep crng [ 12.089286] random: crng init done Boot with 32 byte rng-seed: # dmesg | grep crng [ 0.000000] random: crng init done
https://github.com/torvalds/linux/blob/7234e2ea0edd00bfb6bb2159e55878c19885c...
Signed-off-by: Alex Shumsky alexthreed@gmail.com Fixes: d2048ba ("rockchip: board: Add board_rng_seed() for all Rockchip devices") ---
arch/arm/mach-rockchip/board.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/mach-rockchip/board.c b/arch/arm/mach-rockchip/board.c index 3fadf7e412..eee75f7bcb 100644 --- a/arch/arm/mach-rockchip/board.c +++ b/arch/arm/mach-rockchip/board.c @@ -472,7 +472,7 @@ __weak int misc_init_r(void) __weak int board_rng_seed(struct abuf *buf) { struct udevice *dev; - size_t len = 0x8; + size_t len = 32; u64 *data;
data = malloc(len);