diff options
| author | Minda Chen <minda.chen@starfivetech.com> | 2026-06-05 14:02:12 +0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-06-09 17:31:20 -0700 |
| commit | 554cfeb72e093102896f3f8b638c81a460f6449b (patch) | |
| tree | eab80ee82a23d840614fe06f34f8fde42f5adbae | |
| parent | 284975d609d09565e7a381f83ed1e9851dc91322 (diff) | |
net: phy: motorcomm: Add YT8522 100M RMII PHY support
Add YT8522 100M RMII ethernet PHY base driver support, including
PHY ID and base config init function.
Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20260605060212.41895-4-minda.chen@starfivetech.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | drivers/net/phy/motorcomm.c | 49 |
1 files changed, 48 insertions, 1 deletions
diff --git a/drivers/net/phy/motorcomm.c b/drivers/net/phy/motorcomm.c index dcba50007451..5071605a1a11 100644 --- a/drivers/net/phy/motorcomm.c +++ b/drivers/net/phy/motorcomm.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0+ /* - * Motorcomm 8511/8521/8531/8531S/8821 PHY driver. + * Motorcomm 8511/8521/8522/8531/8531S/8821 PHY driver. * * Author: Peter Geis <pgwipeout@gmail.com> * Author: Frank <Frank.Sae@motor-comm.com> @@ -14,6 +14,7 @@ #define PHY_ID_YT8511 0x0000010a #define PHY_ID_YT8521 0x0000011a +#define PHY_ID_YT8522 0x4f51e928 #define PHY_ID_YT8531 0x4f51e91b #define PHY_ID_YT8531S 0x4f51e91a #define PHY_ID_YT8821 0x4f51ea19 @@ -227,6 +228,13 @@ #define YT8521_LED_100_ON_EN BIT(5) #define YT8521_LED_10_ON_EN BIT(4) +#define YT8522_EXTREG_SLEEP_CONTROL 0x2027 +#define YT8522_EN_SLEEP_SW BIT(15) + +#define YT8522_EXTENDED_COMBO_CTRL 0x4000 +#define YT8522_RXDV_SEL BIT(4) +#define YT8522_RMII_EN BIT(1) + #define YTPHY_MISC_CONFIG_REG 0xA006 #define YTPHY_MCR_FIBER_SPEED_MASK BIT(0) #define YTPHY_MCR_FIBER_1000BX (0x1 << 0) @@ -1842,6 +1850,36 @@ static int yt8531_config_init(struct phy_device *phydev) return 0; } +static int yt8522_config_init(struct phy_device *phydev) +{ + struct device *dev = &phydev->mdio.dev; + int ret, val; + + val = ytphy_read_ext_with_lock(phydev, YT8522_EXTENDED_COMBO_CTRL); + if (val < 0) + return val; + + if (val & YT8522_RMII_EN) { + val |= YT8522_RXDV_SEL; + ret = ytphy_write_ext_with_lock(phydev, + YT8522_EXTENDED_COMBO_CTRL, + val); + if (ret < 0) + return ret; + } + + if (device_property_read_bool(dev, "motorcomm,auto-sleep-disabled")) { + /* disable auto sleep */ + ret = ytphy_modify_ext_with_lock(phydev, + YT8522_EXTREG_SLEEP_CONTROL, + YT8522_EN_SLEEP_SW, 0); + if (ret < 0) + return ret; + } + + return 0; +} + /** * yt8531_link_change_notify() - Adjust the tx clock direction according to * the current speed and dts config. @@ -3052,6 +3090,14 @@ static struct phy_driver motorcomm_phy_drvs[] = { .led_hw_control_get = yt8521_led_hw_control_get, }, { + PHY_ID_MATCH_EXACT(PHY_ID_YT8522), + .name = "YT8522 100 Megabit Ethernet", + .config_aneg = genphy_config_aneg, + .config_init = yt8522_config_init, + .suspend = genphy_suspend, + .resume = genphy_resume, + }, + { PHY_ID_MATCH_EXACT(PHY_ID_YT8531), .name = "YT8531 Gigabit Ethernet", .probe = yt8531_probe, @@ -3111,6 +3157,7 @@ MODULE_LICENSE("GPL"); static const struct mdio_device_id __maybe_unused motorcomm_tbl[] = { { PHY_ID_MATCH_EXACT(PHY_ID_YT8511) }, { PHY_ID_MATCH_EXACT(PHY_ID_YT8521) }, + { PHY_ID_MATCH_EXACT(PHY_ID_YT8522) }, { PHY_ID_MATCH_EXACT(PHY_ID_YT8531) }, { PHY_ID_MATCH_EXACT(PHY_ID_YT8531S) }, { PHY_ID_MATCH_EXACT(PHY_ID_YT8821) }, |