[PATCH net-next v2 6/8] net: macb: use resolved link config in mac_link_up()
From: Russell King <hidden>
Date: 2020-02-26 10:26:41
Also in:
linux-doc, linux-mediatek, netdev
Subsystem:
atmel macb ethernet driver, networking drivers, the rest · Maintainers:
Théo Lebrun, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Convert the macb ethernet driver to use the finalised link parameters in mac_link_up() rather than the parameters in mac_config(). Tested-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Russell King <redacted> --- drivers/net/ethernet/cadence/macb.h | 1 - drivers/net/ethernet/cadence/macb_main.c | 50 ++++++++++++++---------- 2 files changed, 29 insertions(+), 22 deletions(-)
diff --git a/drivers/net/ethernet/cadence/macb.h b/drivers/net/ethernet/cadence/macb.h
index a3f0f27fc79a..ab827fb4b6b9 100644
--- a/drivers/net/ethernet/cadence/macb.h
+++ b/drivers/net/ethernet/cadence/macb.h@@ -1200,7 +1200,6 @@ struct macb { unsigned int dma_burst_length; phy_interface_t phy_interface; - int speed; /* AT91RM9200 transmit */ struct sk_buff *skb; /* holds skb until xmit interrupt completes */
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 7ab0bef5e1bd..3a7c26b08607 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c@@ -571,37 +571,20 @@ static void macb_mac_config(struct phylink_config *config, unsigned int mode, old_ctrl = ctrl = macb_or_gem_readl(bp, NCFGR); - /* Clear all the bits we might set later */ - ctrl &= ~(MACB_BIT(SPD) | MACB_BIT(FD) | MACB_BIT(PAE)); - if (bp->caps & MACB_CAPS_MACB_IS_EMAC) { if (state->interface == PHY_INTERFACE_MODE_RMII) ctrl |= MACB_BIT(RM9200_RMII); } else { - ctrl &= ~(GEM_BIT(GBE) | GEM_BIT(SGMIIEN) | GEM_BIT(PCSSEL)); - - /* We do not support MLO_PAUSE_RX yet */ - if (state->pause & MLO_PAUSE_TX) - ctrl |= MACB_BIT(PAE); + ctrl &= ~(GEM_BIT(SGMIIEN) | GEM_BIT(PCSSEL)); if (state->interface == PHY_INTERFACE_MODE_SGMII) ctrl |= GEM_BIT(SGMIIEN) | GEM_BIT(PCSSEL); } - if (state->speed == SPEED_1000) - ctrl |= GEM_BIT(GBE); - else if (state->speed == SPEED_100) - ctrl |= MACB_BIT(SPD); - - if (state->duplex) - ctrl |= MACB_BIT(FD); - /* Apply the new configuration, if any */ if (old_ctrl ^ ctrl) macb_or_gem_writel(bp, NCFGR, ctrl); - bp->speed = state->speed; - spin_unlock_irqrestore(&bp->lock, flags); }
@@ -635,10 +618,33 @@ static void macb_mac_link_up(struct phylink_config *config, struct net_device *ndev = to_net_dev(config->dev); struct macb *bp = netdev_priv(ndev); struct macb_queue *queue; + unsigned long flags; unsigned int q; + u32 ctrl; + + spin_lock_irqsave(&bp->lock, flags); + + ctrl = macb_or_gem_readl(bp, NCFGR); + + ctrl &= ~(MACB_BIT(SPD) | MACB_BIT(FD)); + + if (speed == SPEED_100) + ctrl |= MACB_BIT(SPD); + + if (duplex) + ctrl |= MACB_BIT(FD); if (!(bp->caps & MACB_CAPS_MACB_IS_EMAC)) { - macb_set_tx_clk(bp->tx_clk, bp->speed, ndev); + ctrl &= ~(GEM_BIT(GBE) | MACB_BIT(PAE)); + + if (speed == SPEED_1000) + ctrl |= GEM_BIT(GBE); + + /* We do not support MLO_PAUSE_RX yet */ + if (tx_pause) + ctrl |= MACB_BIT(PAE); + + macb_set_tx_clk(bp->tx_clk, speed, ndev); /* Initialize rings & buffers as clearing MACB_BIT(TE) in link down * cleared the pipeline and control registers.
@@ -651,6 +657,10 @@ static void macb_mac_link_up(struct phylink_config *config, bp->rx_intr_mask | MACB_TX_INT_FLAGS | MACB_BIT(HRESP)); } + macb_or_gem_writel(bp, NCFGR, ctrl); + + spin_unlock_irqrestore(&bp->lock, flags); + /* Enable Rx and Tx */ macb_writel(bp, NCR, macb_readl(bp, NCR) | MACB_BIT(RE) | MACB_BIT(TE));
@@ -4432,8 +4442,6 @@ static int macb_probe(struct platform_device *pdev) else bp->phy_interface = interface; - bp->speed = SPEED_UNKNOWN; - /* IP specific init */ err = init(pdev); if (err)
--
2.20.1
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