diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/phy/ti.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/net/phy/ti.c b/drivers/net/phy/ti.c index e27ee32bd1..6db6edd0d0 100644 --- a/drivers/net/phy/ti.c +++ b/drivers/net/phy/ti.c @@ -93,6 +93,9 @@ #define DP83867_IO_MUX_CFG_IO_IMPEDANCE_MAX 0x0 #define DP83867_IO_MUX_CFG_IO_IMPEDANCE_MIN 0x1f +#define DP83867_IO_MUX_CFG_CLK_O_SEL_SHIFT 8 +#define DP83867_IO_MUX_CFG_CLK_O_SEL_MASK \ + GENMASK(0x1f, DP83867_IO_MUX_CFG_CLK_O_SEL_SHIFT) /* CFG4 bits */ #define DP83867_CFG4_PORT_MIRROR_EN BIT(0) @@ -110,6 +113,7 @@ struct dp83867_private { int io_impedance; bool rxctrl_strap_quirk; int port_mirroring; + int clk_output_sel; }; /** @@ -208,6 +212,18 @@ static int dp83867_of_init(struct phy_device *phydev) { struct dp83867_private *dp83867 = phydev->priv; ofnode node; + u16 val; + + /* Optional configuration */ + + /* + * Keep the default value if ti,clk-output-sel is not set + * or to high + */ + + dp83867->clk_output_sel = + ofnode_read_u32_default(node, "ti,clk-output-sel", + DP83867_CLK_O_SEL_REF_CLK); node = phy_get_ofnode(phydev); if (!ofnode_valid(node)) @@ -239,6 +255,17 @@ static int dp83867_of_init(struct phy_device *phydev) dp83867->port_mirroring = DP83867_PORT_MIRRORING_DIS; + /* Clock output selection if muxing property is set */ + if (dp83867->clk_output_sel != DP83867_CLK_O_SEL_REF_CLK) { + val = phy_read_mmd_indirect(phydev, DP83867_IO_MUX_CFG, + DP83867_DEVADDR, phydev->addr); + val &= ~DP83867_IO_MUX_CFG_CLK_O_SEL_MASK; + val |= (dp83867->clk_output_sel << + DP83867_IO_MUX_CFG_CLK_O_SEL_SHIFT); + phy_write_mmd_indirect(phydev, DP83867_IO_MUX_CFG, + DP83867_DEVADDR, phydev->addr, val); + } + return 0; } #else |