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net/phy: fix DP83865 10 Mbps HDX loopback disable function 

According to the DP83865 datasheet "the 10 Mbps HDX loopback can be
disabled in the expanded memory register 0x1C0.1". The driver erroneously
used bit 0 instead of bit 1.

Fixes: 4621bf1298 ("phy: Add file missed in previous commit.")
Signed-off-by: Peter Mamonov <pmamonov@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
alistair/sunxi64-5.4-dsi
Peter Mamonov 2019-09-18 19:27:55 +03:00 committed by Jakub Kicinski
parent 8d3d7c2029
commit e47488b2df
1 changed files with 6 additions and 3 deletions
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9
drivers/net/phy/national.c
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@ -105,14 +105,17 @@ static void ns_giga_speed_fallback(struct phy_device *phydev, int mode)
static void ns_10_base_t_hdx_loopack(struct phy_device *phydev, int disable)
{
u16 lb_dis = BIT(1);
if (disable)
ns_exp_write(phydev, 0x1c0, ns_exp_read(phydev, 0x1c0) | 1);
ns_exp_write(phydev, 0x1c0,
ns_exp_read(phydev, 0x1c0) | lb_dis);
else
ns_exp_write(phydev, 0x1c0,
ns_exp_read(phydev, 0x1c0) & 0xfffe);
ns_exp_read(phydev, 0x1c0) & ~lb_dis);
pr_debug("10BASE-T HDX loopback %s\n",
(ns_exp_read(phydev, 0x1c0) & 0x0001) ? "off" : "on");
(ns_exp_read(phydev, 0x1c0) & lb_dis) ? "off" : "on");
}
static int ns_config_init(struct phy_device *phydev)