diff options
Diffstat (limited to 'drivers/net/ethernet/freescale/enetc/ntmp.c')
| -rw-r--r-- | drivers/net/ethernet/freescale/enetc/ntmp.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/drivers/net/ethernet/freescale/enetc/ntmp.c b/drivers/net/ethernet/freescale/enetc/ntmp.c index ba32c1bbd9e1..0c1d343253bf 100644 --- a/drivers/net/ethernet/freescale/enetc/ntmp.c +++ b/drivers/net/ethernet/freescale/enetc/ntmp.c @@ -52,24 +52,19 @@ int ntmp_init_cbdr(struct netc_cbdr *cbdr, struct device *dev, cbdr->addr_base_align = PTR_ALIGN(cbdr->addr_base, NTMP_BASE_ADDR_ALIGN); - cbdr->next_to_clean = 0; - cbdr->next_to_use = 0; spin_lock_init(&cbdr->ring_lock); + cbdr->next_to_use = netc_read(cbdr->regs.pir); + cbdr->next_to_clean = netc_read(cbdr->regs.cir); + /* Step 1: Configure the base address of the Control BD Ring */ netc_write(cbdr->regs.bar0, lower_32_bits(cbdr->dma_base_align)); netc_write(cbdr->regs.bar1, upper_32_bits(cbdr->dma_base_align)); - /* Step 2: Configure the producer index register */ - netc_write(cbdr->regs.pir, cbdr->next_to_clean); - - /* Step 3: Configure the consumer index register */ - netc_write(cbdr->regs.cir, cbdr->next_to_use); - - /* Step4: Configure the number of BDs of the Control BD Ring */ + /* Step 2: Configure the number of BDs of the Control BD Ring */ netc_write(cbdr->regs.lenr, cbdr->bd_num); - /* Step 5: Enable the Control BD Ring */ + /* Step 3: Enable the Control BD Ring */ netc_write(cbdr->regs.mr, NETC_CBDR_MR_EN); return 0; |