Use 'make target/linux/refresh' to refresh hack patches. Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
		
			
				
	
	
		
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			35 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
From 5f008cb22f60da4e10375f22266c1a4e20b1252e Mon Sep 17 00:00:00 2001
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From: Alex Marginean <alexandru.marginean@nxp.com>
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Date: Fri, 20 Sep 2019 18:22:52 +0300
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Subject: [PATCH] drivers: net: phy: aquantia: fix system side protocol
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 misconfiguration
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Do not set up protocols for speeds that are not supported by FW.  Enabling
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these protocols leads to link issues on system side.
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Signed-off-by: Alex Marginean <alexandru.marginean@nxp.com>
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---
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 drivers/net/phy/aquantia_main.c | 8 +++++++-
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 1 file changed, 7 insertions(+), 1 deletion(-)
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--- a/drivers/net/phy/aquantia_main.c
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+++ b/drivers/net/phy/aquantia_main.c
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@@ -302,10 +302,16 @@ static int aqr_config_aneg_set_prot(stru
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 	phy_write_mmd(phydev, MDIO_MMD_VEND1, AQUANTIA_VND1_GSTART_RATE,
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 		      aquantia_syscfg[if_type].start_rate);
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-	for (i = 0; i <= aquantia_syscfg[if_type].cnt; i++)
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+	for (i = 0; i <= aquantia_syscfg[if_type].cnt; i++) {
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+		u16 reg = phy_read_mmd(phydev, MDIO_MMD_VEND1,
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+				       AQUANTIA_VND1_GSYSCFG_BASE + i);
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+		if (!reg)
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+			continue;
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+
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 		phy_write_mmd(phydev, MDIO_MMD_VEND1,
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 			      AQUANTIA_VND1_GSYSCFG_BASE + i,
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 			      aquantia_syscfg[if_type].syscfg);
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+	}
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 	/* wake PHY back up */
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 	phy_write_mmd(phydev, MDIO_MMD_VEND1, AQUANTIA_VND1_GLOBAL_SC, 0);
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