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5eec1df01e
- add support for rtl8224 2.5Gbps PHY - add support for PHY LEDs on RTL8211F Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
152 lines
4.6 KiB
Diff
152 lines
4.6 KiB
Diff
From 17784801d888238571a0c4101b9ac4401fffeaa0 Mon Sep 17 00:00:00 2001
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From: Marek Vasut <marex@denx.de>
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Date: Tue, 25 Jun 2024 22:42:17 +0200
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Subject: [PATCH] net: phy: realtek: Add support for PHY LEDs on RTL8211F
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Realtek RTL8211F Ethernet PHY supports 3 LED pins which are used to
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indicate link status and activity. Add minimal LED controller driver
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supporting the most common uses with the 'netdev' trigger.
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Signed-off-by: Marek Vasut <marex@denx.de>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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drivers/net/phy/realtek.c | 106 ++++++++++++++++++++++++++++++++++++++
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1 file changed, 106 insertions(+)
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--- a/drivers/net/phy/realtek.c
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+++ b/drivers/net/phy/realtek.c
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@@ -32,6 +32,15 @@
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#define RTL8211F_PHYCR2 0x19
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#define RTL8211F_INSR 0x1d
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+#define RTL8211F_LEDCR 0x10
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+#define RTL8211F_LEDCR_MODE BIT(15)
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+#define RTL8211F_LEDCR_ACT_TXRX BIT(4)
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+#define RTL8211F_LEDCR_LINK_1000 BIT(3)
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+#define RTL8211F_LEDCR_LINK_100 BIT(1)
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+#define RTL8211F_LEDCR_LINK_10 BIT(0)
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+#define RTL8211F_LEDCR_MASK GENMASK(4, 0)
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+#define RTL8211F_LEDCR_SHIFT 5
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+
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#define RTL8211F_TX_DELAY BIT(8)
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#define RTL8211F_RX_DELAY BIT(3)
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@@ -87,6 +96,8 @@
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#define RTL_8221B_VN_CG 0x001cc84a
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#define RTL_8251B 0x001cc862
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+#define RTL8211F_LED_COUNT 3
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+
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MODULE_DESCRIPTION("Realtek PHY driver");
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MODULE_AUTHOR("Johnson Leung");
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MODULE_LICENSE("GPL");
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@@ -476,6 +487,98 @@ static int rtl821x_resume(struct phy_dev
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return 0;
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}
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+static int rtl8211f_led_hw_is_supported(struct phy_device *phydev, u8 index,
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+ unsigned long rules)
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+{
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+ const unsigned long mask = BIT(TRIGGER_NETDEV_LINK_10) |
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+ BIT(TRIGGER_NETDEV_LINK_100) |
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+ BIT(TRIGGER_NETDEV_LINK_1000) |
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+ BIT(TRIGGER_NETDEV_RX) |
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+ BIT(TRIGGER_NETDEV_TX);
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+
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+ /* The RTL8211F PHY supports these LED settings on up to three LEDs:
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+ * - Link: Configurable subset of 10/100/1000 link rates
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+ * - Active: Blink on activity, RX or TX is not differentiated
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+ * The Active option has two modes, A and B:
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+ * - A: Link and Active indication at configurable, but matching,
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+ * subset of 10/100/1000 link rates
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+ * - B: Link indication at configurable subset of 10/100/1000 link
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+ * rates and Active indication always at all three 10+100+1000
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+ * link rates.
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+ * This code currently uses mode B only.
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+ */
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+
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+ if (index >= RTL8211F_LED_COUNT)
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+ return -EINVAL;
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+
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+ /* Filter out any other unsupported triggers. */
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+ if (rules & ~mask)
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+ return -EOPNOTSUPP;
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+
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+ /* RX and TX are not differentiated, either both are set or not set. */
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+ if (!(rules & BIT(TRIGGER_NETDEV_RX)) ^ !(rules & BIT(TRIGGER_NETDEV_TX)))
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+ return -EOPNOTSUPP;
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+
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+ return 0;
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+}
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+
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+static int rtl8211f_led_hw_control_get(struct phy_device *phydev, u8 index,
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+ unsigned long *rules)
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+{
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+ int val;
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+
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+ val = phy_read_paged(phydev, 0xd04, RTL8211F_LEDCR);
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+ if (val < 0)
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+ return val;
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+
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+ val >>= RTL8211F_LEDCR_SHIFT * index;
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+ val &= RTL8211F_LEDCR_MASK;
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+
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+ if (val & RTL8211F_LEDCR_LINK_10)
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+ set_bit(TRIGGER_NETDEV_LINK_10, rules);
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+
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+ if (val & RTL8211F_LEDCR_LINK_100)
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+ set_bit(TRIGGER_NETDEV_LINK_100, rules);
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+
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+ if (val & RTL8211F_LEDCR_LINK_1000)
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+ set_bit(TRIGGER_NETDEV_LINK_1000, rules);
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+
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+ if (val & RTL8211F_LEDCR_ACT_TXRX) {
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+ set_bit(TRIGGER_NETDEV_RX, rules);
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+ set_bit(TRIGGER_NETDEV_TX, rules);
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+ }
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+
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+ return 0;
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+}
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+
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+static int rtl8211f_led_hw_control_set(struct phy_device *phydev, u8 index,
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+ unsigned long rules)
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+{
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+ const u16 mask = RTL8211F_LEDCR_MASK << (RTL8211F_LEDCR_SHIFT * index);
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+ u16 reg = RTL8211F_LEDCR_MODE; /* Mode B */
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+
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+ if (index >= RTL8211F_LED_COUNT)
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+ return -EINVAL;
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+
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+ if (test_bit(TRIGGER_NETDEV_LINK_10, &rules))
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+ reg |= RTL8211F_LEDCR_LINK_10;
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+
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+ if (test_bit(TRIGGER_NETDEV_LINK_100, &rules))
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+ reg |= RTL8211F_LEDCR_LINK_100;
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+
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+ if (test_bit(TRIGGER_NETDEV_LINK_1000, &rules))
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+ reg |= RTL8211F_LEDCR_LINK_1000;
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+
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+ if (test_bit(TRIGGER_NETDEV_RX, &rules) ||
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+ test_bit(TRIGGER_NETDEV_TX, &rules)) {
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+ reg |= RTL8211F_LEDCR_ACT_TXRX;
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+ }
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+
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+ reg <<= RTL8211F_LEDCR_SHIFT * index;
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+
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+ return phy_modify_paged(phydev, 0xd04, RTL8211F_LEDCR, mask, reg);
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+}
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+
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static int rtl8211e_config_init(struct phy_device *phydev)
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{
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int ret = 0, oldpage;
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@@ -1192,6 +1295,9 @@ static struct phy_driver realtek_drvs[]
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.read_page = rtl821x_read_page,
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.write_page = rtl821x_write_page,
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.flags = PHY_ALWAYS_CALL_SUSPEND,
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+ .led_hw_is_supported = rtl8211f_led_hw_is_supported,
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+ .led_hw_control_get = rtl8211f_led_hw_control_get,
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+ .led_hw_control_set = rtl8211f_led_hw_control_set,
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}, {
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PHY_ID_MATCH_EXACT(RTL_8211FVD_PHYID),
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.name = "RTL8211F-VD Gigabit Ethernet",
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