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@@ -10,6 +10,8 @@
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#define __NET_RAND_H__
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#include <common.h>
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+#include <dm/uclass.h>
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+#include <rng.h>
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/*
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* Return a seed for the PRNG derived from the eth0 MAC address.
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@@ -37,7 +39,22 @@ static inline unsigned int seed_mac(void)
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*/
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static inline void srand_mac(void)
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{
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- srand(seed_mac());
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+ int ret;
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+ struct udevice *devp;
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+ u32 randv = 0;
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+
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+ if (IS_ENABLED(CONFIG_DM_RNG)) {
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+ ret = uclass_get_device(UCLASS_RNG, 0, &devp);
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+ if (ret) {
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+ ret = dm_rng_read(devp, &randv, sizeof(randv));
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+ if (ret < 0)
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+ randv = 0;
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+ }
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+ }
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+ if (randv)
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+ srand(randv);
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+ else
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+ srand(seed_mac());
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}
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#endif /* __NET_RAND_H__ */
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