Similar to commit 62f95ae805fa ("hwrng: omap - Set default quality") we need to initialize the default quality for the RNG to be used.
The symptoms of this problem is that doing hd /dev/random does not produce much data at all. Cc: Aaro Koskinen <aaro.koski...@iki.fi> Cc: Adam Ford <aford...@gmail.com> Cc: Pali Rohár <pali.ro...@gmail.com> Cc: Sebastian Reichel <s...@kernel.org> Cc: Tero Kristo <t-kri...@ti.com> Signed-off-by: Tony Lindgren <t...@atomide.com> --- drivers/char/hw_random/omap3-rom-rng.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/char/hw_random/omap3-rom-rng.c b/drivers/char/hw_random/omap3-rom-rng.c --- a/drivers/char/hw_random/omap3-rom-rng.c +++ b/drivers/char/hw_random/omap3-rom-rng.c @@ -88,6 +88,7 @@ static int omap3_rom_rng_read(struct hwrng *rng, void *data, size_t max, bool w) static struct hwrng omap3_rom_rng_ops = { .name = "omap3-rom", + .quality = 900, }; static int omap3_rom_rng_probe(struct platform_device *pdev) -- 2.23.0