[PATCH] net: gem: Reduce timeout of mdio phy idle status check

Michal Simek michal.simek at xilinx.com
Fri Oct 29 13:16:05 CEST 2021


From: Ashok Reddy Soma <ashok.reddy.soma at xilinx.com>

Timeout for checking mdio phy idle status is 20seconds. In case of errors
this timeout will be too much. Reduce it to 100ms.

Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma at xilinx.com>
Signed-off-by: Michal Simek <michal.simek at xilinx.com>
---

 drivers/net/zynq_gem.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c
index c309c3c95499..033021f1cbfc 100644
--- a/drivers/net/zynq_gem.c
+++ b/drivers/net/zynq_gem.c
@@ -110,6 +110,8 @@
 
 #define ZYNQ_GEM_DCFG_DBG6_DMA_64B	BIT(23)
 
+#define MDIO_IDLE_TIMEOUT_MS		100
+
 /* Use MII register 1 (MII status register) to detect PHY */
 #define PHY_DETECT_REG  1
 
@@ -225,7 +227,7 @@ static int phy_setup_op(struct zynq_gem_priv *priv, u32 phy_addr, u32 regnum,
 	int err;
 
 	err = wait_for_bit_le32(&regs->nwsr, ZYNQ_GEM_NWSR_MDIOIDLE_MASK,
-				true, 20000, false);
+				true, MDIO_IDLE_TIMEOUT_MS, false);
 	if (err)
 		return err;
 
@@ -238,7 +240,7 @@ static int phy_setup_op(struct zynq_gem_priv *priv, u32 phy_addr, u32 regnum,
 	writel(mgtcr, &regs->phymntnc);
 
 	err = wait_for_bit_le32(&regs->nwsr, ZYNQ_GEM_NWSR_MDIOIDLE_MASK,
-				true, 20000, false);
+				true, MDIO_IDLE_TIMEOUT_MS, false);
 	if (err)
 		return err;
 
-- 
2.33.1



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