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drivers: ethernet: phy: add dt prop for default speeds

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add dt prop for default speeds, that the phy is
configured on init by default.

Signed-off-by: Fin Maaß <f.maass@vogl-electronic.com>
This commit is contained in:
Fin Maaß 2025-04-28 17:17:09 +02:00 • committed by Benjamin Cabé
commit dfb5a31b3e
2 changed files with 27 additions and 7 deletions
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22
drivers/ethernet/phy/phy_mii.c
View file

@ -26,6 +26,7 @@ struct phy_mii_dev_config {
bool no_reset;
bool fixed;
int fixed_speed;
enum phy_link_speed default_speeds;
const struct device * const mdio;
};
@ -610,13 +611,8 @@ static int phy_mii_initialize_dynamic_link(const struct device *dev)
k_work_init_delayable(&data->monitor_work, monitor_work_handler);
k_work_init_delayable(&data->autoneg_work, autoneg_work_handler);
/* Advertise all speeds */
phy_mii_cfg_link(dev, LINK_HALF_10BASE |
LINK_FULL_10BASE |
LINK_HALF_100BASE |
LINK_FULL_100BASE |
LINK_HALF_1000BASE |
LINK_FULL_1000BASE);
/* Advertise default speeds */
phy_mii_cfg_link(dev, cfg->default_speeds);
monitor_work_handler(&data->monitor_work.work);
@ -636,12 +632,24 @@ static DEVICE_API(ethphy, phy_mii_driver_api) = {
#endif
};
#define PHY_MII_GENERATE_DEFAULT_SPEEDS(n) \
((DT_INST_ENUM_HAS_VALUE(n, default_speeds, 10base_half_duplex) ? LINK_HALF_10BASE : 0) | \
(DT_INST_ENUM_HAS_VALUE(n, default_speeds, 10base_full_duplex) ? LINK_FULL_10BASE : 0) | \
(DT_INST_ENUM_HAS_VALUE(n, default_speeds, 100base_half_duplex) ? LINK_HALF_100BASE : 0) | \
(DT_INST_ENUM_HAS_VALUE(n, default_speeds, 100base_full_duplex) ? LINK_FULL_100BASE : 0) | \
(DT_INST_ENUM_HAS_VALUE(n, default_speeds, 1000base_half_duplex) ? LINK_HALF_1000BASE : 0) | \
(DT_INST_ENUM_HAS_VALUE(n, default_speeds, 1000base_full_duplex) ? LINK_FULL_1000BASE : 0))
#define PHY_MII_CONFIG(n) \
BUILD_ASSERT(PHY_MII_GENERATE_DEFAULT_SPEEDS(n) != 0, \
"At least one valid speed must be configured for this driver"); \
\
static const struct phy_mii_dev_config phy_mii_dev_config_##n = { \
.phy_addr = DT_INST_REG_ADDR(n), \
.no_reset = DT_INST_PROP(n, no_reset), \
.fixed = IS_FIXED_LINK(n), \
.fixed_speed = DT_INST_ENUM_IDX_OR(n, fixed_link, 0), \
.default_speeds = PHY_MII_GENERATE_DEFAULT_SPEEDS(n), \
.mdio = UTIL_AND(UTIL_NOT(IS_FIXED_LINK(n)), \
DEVICE_DT_GET(DT_INST_BUS(n))) \
};

12
dts/bindings/ethernet/phy/ethernet-phy.yaml
View file

@ -26,3 +26,15 @@ properties:
- "100BASE-T Full-Duplex"
- "1000BASE-T Half-Duplex"
- "1000BASE-T Full-Duplex"
default-speeds:
type: string-array
description: The selected speeds are used to configure the PHY during initialization
enum:
- "10BASE Half-Duplex"
- "10BASE Full-Duplex"
- "100BASE Half-Duplex"
- "100BASE Full-Duplex"
- "1000BASE Half-Duplex"
- "1000BASE Full-Duplex"
default: ["10BASE Half-Duplex", "10BASE Full-Duplex", "100BASE Half-Duplex",
"100BASE Full-Duplex", "1000BASE Half-Duplex", "1000BASE Full-Duplex"]