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net: phy: motorcomm: Add YT8522 100M RMII PHY support

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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>
This commit is contained in:
Minda Chen 2026-06-05 14:02:12 +08:00 committed by Jakub Kicinski
parent 284975d609
commit 554cfeb72e
1 changed files with 48 additions and 1 deletions
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49
drivers/net/phy/motorcomm.c
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@ -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.
@ -3051,6 +3089,14 @@ static struct phy_driver motorcomm_phy_drvs[] = {
.led_hw_control_set = yt8521_led_hw_control_set,
.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",
@ -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) },