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ppc4xx: Remove redundant code from 4xx network driver 

This patch removes some redundant code and decrements the end
address of cache flush and invalidate by 1.

Signed-off-by: Matthias Fuchs <matthias.fuchs@esd-electronics.com>
Signed-off-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Matthias Fuchs 2007-11-09 15:36:44 +01:00 committed by Stefan Roese
parent b53313dbfc
commit fbde2169d2
1 changed files with 3 additions and 5 deletions
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8
cpu/ppc4xx/4xx_enet.c
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@ -849,9 +849,7 @@ static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis)
} }
#ifdef CONFIG_4xx_DCACHE #ifdef CONFIG_4xx_DCACHE
flush_dcache_range(bd_cached, bd_cached + MAL_ALLOC_SIZE); flush_dcache_range(bd_cached, bd_cached + MAL_ALLOC_SIZE - 1);
hw_p->tx_phys = bd_cached;
hw_p->rx_phys = bd_cached + MAL_TX_DESC_SIZE;
bd_uncached = bis->bi_memsize; bd_uncached = bis->bi_memsize;
program_tlb(bd_cached, bd_uncached, MAL_ALLOC_SIZE, program_tlb(bd_cached, bd_uncached, MAL_ALLOC_SIZE,
TLB_WORD2_I_ENABLE); TLB_WORD2_I_ENABLE);
@ -1066,7 +1064,7 @@ static int ppc_4xx_eth_send (struct eth_device *dev, volatile void *ptr,
/* memcpy ((void *) &tx_buff[tx_slot], (const void *) ptr, len); */ /* memcpy ((void *) &tx_buff[tx_slot], (const void *) ptr, len); */
memcpy ((void *) hw_p->txbuf_ptr, (const void *) ptr, len); memcpy ((void *) hw_p->txbuf_ptr, (const void *) ptr, len);
flush_dcache_range((u32)hw_p->txbuf_ptr, (u32)hw_p->txbuf_ptr + len); flush_dcache_range((u32)hw_p->txbuf_ptr, (u32)hw_p->txbuf_ptr + len - 1);
/*-----------------------------------------------------------------------+ /*-----------------------------------------------------------------------+
* set TX Buffer busy, and send it * set TX Buffer busy, and send it
@ -1568,7 +1566,7 @@ static int ppc_4xx_eth_rx (struct eth_device *dev)
/* NetReceive(NetRxPackets[i], length); */ /* NetReceive(NetRxPackets[i], length); */
invalidate_dcache_range((u32)hw_p->rx[user_index].data_ptr, invalidate_dcache_range((u32)hw_p->rx[user_index].data_ptr,
(u32)hw_p->rx[user_index].data_ptr + (u32)hw_p->rx[user_index].data_ptr +
length - 4); length - 4 - 1);
NetReceive (NetRxPackets[user_index], length - 4); NetReceive (NetRxPackets[user_index], length - 4);
/* Free Recv Buffer */ /* Free Recv Buffer */
hw_p->rx[user_index].ctrl |= MAL_RX_CTRL_EMPTY; hw_p->rx[user_index].ctrl |= MAL_RX_CTRL_EMPTY;