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remove uselss cache invalidations

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SVN-Revision: 32472
This commit is contained in:
Florian Fainelli 2012-06-20 21:57:53 +00:00
parent 9a2367aa6d
commit 007fa4d638
1 changed files with 0 additions and 22 deletions
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22
target/linux/mcs814x/files-3.3/drivers/net/ethernet/mcs8140/nuport_mac.c
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@ -142,26 +142,6 @@ struct nuport_mac_priv {
u32 msg_level;
};
void dcache_invalidate_only(unsigned long start, unsigned long end)
{
asm("\n"
" bic r0, r0, #31\n"
"1: mcr p15, 0, r0, c7, c6, 1\n"
" add r0, r0, #32\n"
" cmp r0, r1\n" " blo 1b\n");
}
void dcache_clean_range(unsigned long start, unsigned long end)
{
asm("\n"
" bic r0, r0, #31\n"
"1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry\n"
" add r0, r0, #32\n"
" cmp r0, r1\n"
" blo 1b\n" \
" mcr p15, 0, r0, c7, c10, 4 @ drain WB\n");
}
static inline int nuport_mac_mii_busy_wait(struct nuport_mac_priv *priv)
{
unsigned long curr;
@ -533,8 +513,6 @@ static int nuport_mac_rx(struct net_device *dev, int limit)
while (count < limit && !priv->irq_rxskb[priv->cur_rx]) {
skb = priv->rx_skb[priv->cur_rx];
len = priv->pkt_len[priv->cur_rx];
dcache_invalidate_only(((u32) skb->data),
((u32) (skb->data + len + 4)));
/* Remove 2 bytes added by RX buffer shifting */
len = len - 2;