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authorRadu Pirea (NXP OSS) <radu-nicolae.pirea@oss.nxp.com>2023-07-31 12:16:17 +0300
committerJakub Kicinski <kuba@kernel.org>2023-08-02 07:06:26 +0300
commitc552c110d4794fc12e0faa4d1cc928fccdfce3f2 (patch)
treefd92bf2673b278e88ff876cea07b002f722367bf /drivers/net/phy
parent425c8348df7b868bc25dce85758e5dc3d63de91d (diff)
downloadlinux-c552c110d4794fc12e0faa4d1cc928fccdfce3f2.tar.xz
net: phy: nxp-c45-tja11xx: run cable test with the PHY in test mode
For TJA1120, the enable bit for cable test is not writable if the PHY is not in test mode. Signed-off-by: Radu Pirea (NXP OSS) <radu-nicolae.pirea@oss.nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/20230731091619.77961-10-radu-nicolae.pirea@oss.nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/phy')
-rw-r--r--drivers/net/phy/nxp-c45-tja11xx.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/phy/nxp-c45-tja11xx.c b/drivers/net/phy/nxp-c45-tja11xx.c
index a52067da9dbf..92a2eca2a02c 100644
--- a/drivers/net/phy/nxp-c45-tja11xx.c
+++ b/drivers/net/phy/nxp-c45-tja11xx.c
@@ -145,6 +145,7 @@
#define VEND1_PORT_FUNC_ENABLES 0x8048
#define PTP_ENABLE BIT(3)
+#define PHY_TEST_ENABLE BIT(0)
#define VEND1_PORT_PTP_CONTROL 0x9000
#define PORT_PTP_CONTROL_BYPASS BIT(11)
@@ -1258,6 +1259,8 @@ static int nxp_c45_cable_test_start(struct phy_device *phydev)
{
const struct nxp_c45_regmap *regmap = nxp_c45_get_regmap(phydev);
+ phy_set_bits_mmd(phydev, MDIO_MMD_VEND1,
+ VEND1_PORT_FUNC_ENABLES, PHY_TEST_ENABLE);
return phy_set_bits_mmd(phydev, MDIO_MMD_VEND1, regmap->cable_test,
CABLE_TEST_ENABLE | CABLE_TEST_START);
}
@@ -1299,6 +1302,8 @@ static int nxp_c45_cable_test_get_status(struct phy_device *phydev,
phy_clear_bits_mmd(phydev, MDIO_MMD_VEND1, regmap->cable_test,
CABLE_TEST_ENABLE);
+ phy_clear_bits_mmd(phydev, MDIO_MMD_VEND1,
+ VEND1_PORT_FUNC_ENABLES, PHY_TEST_ENABLE);
return nxp_c45_start_op(phydev);
}