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net: mvpp2.c: Clear all buffer / descriptor areas before usage

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This fixes problems noticed with the PPv2.2 A7k/8k port, when not all
elements of the descriptors had been cleared before use.

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Stefan Roese 2017-02-16 13:29:08 +01:00
parent 1fabbd074e
commit 30edc374ea
1 changed files with 3 additions and 0 deletions
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3
drivers/net/mvpp2.c
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@ -4429,6 +4429,9 @@ static int mvpp2_base_probe(struct udevice *dev)
size += RX_BUFFER_SIZE;
}
/* Clear the complete area so that all descriptors are cleared */
memset(bd_space, 0, size);
/* Save base addresses for later use */
priv->base = (void *)dev_get_addr_index(dev, 0);
if (IS_ERR(priv->base))