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Message-ID: <E5152E61-5896-46FD-BF4A-16CDFB3796F6@bluematt.me>
Date: Sat, 25 Jun 2016 19:35:03 +0000
From: Matt Corallo <linux@...ematt.me>
To: linux-amlogic@...ts.infradead.org
CC: Giuseppe Cavallaro <peppe.cavallaro@...com>,
Alexandre Torgue <alexandre.torgue@...com>,
netdev@...r.kernel.org, martin.blumenstingl@...glemail.com
Subject: [PATCH] net: stmmac: Fix null-function call in ISR on stmmac1000
At least on Meson GXBB, the CORE_IRQ_MTL_RX_OVERFLOW interrupt is thrown
with the stmmac1000 driver, which does not support set_rx_tail_ptr. With
this patch and the clock fixes, 1G ethernet works on ODROID-C2.
Signed-off-by: Matt Corallo <git@...ematt.me>
---
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index a473c18..e407126 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -2804,7 +2804,7 @@ static irqreturn_t stmmac_interrupt(int irq, void
*dev_id)
priv->tx_path_in_lpi_mode = true;
if (status & CORE_IRQ_TX_PATH_EXIT_LPI_MODE)
priv->tx_path_in_lpi_mode = false;
- if (status & CORE_IRQ_MTL_RX_OVERFLOW)
+ if (status & CORE_IRQ_MTL_RX_OVERFLOW && priv->hw->dma->set_rx_tail_ptr)
priv->hw->dma->set_rx_tail_ptr(priv->ioaddr,
priv->rx_tail_addr,
STMMAC_CHAN0);
--
2.1.4
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