diff options
Diffstat (limited to 'cpu/ppc4xx/4xx_enet.c')
| -rw-r--r-- | cpu/ppc4xx/4xx_enet.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/cpu/ppc4xx/4xx_enet.c b/cpu/ppc4xx/4xx_enet.c index 44659ffcd..599f5ceb5 100644 --- a/cpu/ppc4xx/4xx_enet.c +++ b/cpu/ppc4xx/4xx_enet.c @@ -487,6 +487,9 @@ static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis) #endif u32 bd_cached; u32 bd_uncached = 0; +#ifdef CONFIG_4xx_DCACHE + static u32 last_used_ea = 0; +#endif EMAC_4XX_HW_PST hw_p = dev->priv; @@ -850,7 +853,12 @@ static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis) #ifdef CONFIG_4xx_DCACHE flush_dcache_range(bd_cached, bd_cached + MAL_ALLOC_SIZE); - bd_uncached = bis->bi_memsize; + if (!last_used_ea) + bd_uncached = bis->bi_memsize; + else + bd_uncached = last_used_ea + MAL_ALLOC_SIZE; + + last_used_ea = bd_uncached; program_tlb(bd_cached, bd_uncached, MAL_ALLOC_SIZE, TLB_WORD2_I_ENABLE); #else @@ -967,9 +975,10 @@ static int ppc_4xx_eth_init (struct eth_device *dev, bd_t * bis) /* set transmit enable & receive enable */ out_be32((void *)EMAC_M0 + hw_p->hw_addr, EMAC_M0_TXE | EMAC_M0_RXE); - /* set receive fifo to 4k and tx fifo to 2k */ mode_reg = in_be32((void *)EMAC_M1 + hw_p->hw_addr); - mode_reg |= EMAC_M1_RFS_4K | EMAC_M1_TX_FIFO_2K; + + /* set rx-/tx-fifo size */ + mode_reg = (mode_reg & ~EMAC_MR1_FIFO_MASK) | EMAC_MR1_FIFO_SIZE; /* set speed */ if (speed == _1000BASET) { |