omap4_rng_init() checks bit 10 of the RNG_CONFIG_REG to determine whether
the RNG is already running before performing any initiliasation. This is not
the correct register to check, as the enable bit is in RNG_CONFIG_CONTROL.
Read from RNG_CONTROL_REG instead.
Signed-off-by: Andre Wolokita <Andre.Wolokita@xxxxxxxxxx>
---
drivers/char/hw_random/omap-rng.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c
index d14dcf7..ff74e5d 100644
--- a/drivers/char/hw_random/omap-rng.c
+++ b/drivers/char/hw_random/omap-rng.c
@@ -236,7 +236,7 @@ static int omap4_rng_init(struct omap_rng_dev *priv)
u32 val;
/* Return if RNG is already running. */
- if (omap_rng_read(priv, RNG_CONFIG_REG) & RNG_CONTROL_ENABLE_TRNG_MASK)
+ if (omap_rng_read(priv, RNG_CONTROL_REG) & RNG_CONTROL_ENABLE_TRNG_MASK)
return 0;
val = RNG_CONFIG_MIN_REFIL_CYCLES << RNG_CONFIG_MIN_REFIL_CYCLES_SHIFT;
--
1.7.9.5
--
Andre Wolokita (andre.wolokita@xxxxxxxxxx)
Design Engineer, Analog Devices Australia Pty Ltd
Unit 3, 97 Lewis Road, Wantirna, Victoria, 3152, AUSTRALIA
Direct: +61 3 9881 9933 Main: +61 3 9881 9999
Fax: +61 3 9881 9988 Web: www.analog.com/au
Embedded DSP software for multimedia & telecommunications.
This communication is proprietary and confidential.
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