Messages in this thread Patch in this message |  | | From | Byungho An <> | Subject | [PATCH v2 2/3] net: stmmac: add autoneg complete irq | Date | Tue, 08 Jan 2013 15:32:00 -0800 |
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This patch adds auto-negotiation complete irq and ISR. when the irq is occured it read GMAC_AN_STATUS register to clear PCSANCIS bit.
Singed-off-by: Byungho An <bh74.an@samsung.com> --- drivers/net/ethernet/stmicro/stmmac/common.h | 1 + drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c | 5 +++++ drivers/net/ethernet/stmicro/stmmac/stmmac.h | 1 + drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 ++ 4 files changed, 9 insertions(+)
diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h index 72ba769..bc5ce7a 100644 --- a/drivers/net/ethernet/stmicro/stmmac/common.h +++ b/drivers/net/ethernet/stmicro/stmmac/common.h @@ -203,6 +203,7 @@ enum core_specific_irq_mask { core_irq_tx_path_exit_lpi_mode = 32, core_irq_rx_path_in_lpi_mode = 64, core_irq_rx_path_exit_lpi_mode = 128, + core_irq_pcs_autoneg_complete = 256, }; /* DMA HW capabilities */ diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c index a0737b39..0643ed3 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c @@ -222,6 +222,11 @@ static int dwmac1000_irq_status(void __iomem *ioaddr) readl(ioaddr + GMAC_PMT); status |= core_irq_receive_pmt_irq; } + if (unlikely(intr_status & pcs_ane_irq)) { + CHIP_DBG(KERN_INFO "GMAC: PCS Auto-negotiation complete\n"); + readl(ioaddr + GMAC_AN_STATUS); + status |= core_irq_pcs_autoneg_complete; + } /* MAC trx/rx EEE LPI entry/exit interrupts */ if (intr_status & lpiis_irq) { /* Clean LPI interrupt by reading the Reg 12 */ diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h index b05df89..b4220f3 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h @@ -93,6 +93,7 @@ struct stmmac_priv { u32 tx_coal_timer; int use_riwt; u32 rx_riwt; + bool core_pcs_an; }; extern int phyaddr; diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 3e28934..0d2afbb 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -1623,6 +1623,8 @@ static irqreturn_t stmmac_interrupt(int irq, void *dev_id) priv->xstats.mmc_rx_csum_offload_irq_n++; if (status & core_irq_receive_pmt_irq) priv->xstats.irq_receive_pmt_irq_n++; + if (status & core_irq_pcs_autoneg_complete) + priv->core_pcs_an = true; /* For LPI we need to save the tx status */ if (status & core_irq_tx_path_in_lpi_mode) { -- 1.7.10.4
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