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Message-ID: <1485841561-32056-2-git-send-email-Raju.Lakkaraju@microsemi.com>
Date: Tue, 31 Jan 2017 11:16:01 +0530
From: Raju Lakkaraju <Raju.Lakkaraju@...rosemi.com>
To: <netdev@...r.kernel.org>, <devicetree@...r.kernel.org>
CC: <f.fainelli@...il.com>, <Allan.Nielsen@...rosemi.com>,
<andrew@...n.ch>, Raju Lakkaraju <Raju.Lakkaraju@...rosemi.com>
Subject: [PATCH net-next] net: phy: Add LED mode driver for Microsemi PHYs.
From: Raju Lakkaraju <Raju.Lakkaraju@...rosemi.com>
LED Mode:
Microsemi PHY support 2 LEDs (LED[0] and LED[1]) to display different
status information that can be selected by setting LED mode.
LED Mode parameter (vddmac, led-0-mode) and (vddmac, led-1-mode) get
from Device Tree.
Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@...rosemi.com>
---
.../devicetree/bindings/net/mscc-phy-vsc8531.txt | 39 ++++++++++++
drivers/net/phy/mscc.c | 72 ++++++++++++++++++++++
2 files changed, 111 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/mscc-phy-vsc8531.txt b/Documentation/devicetree/bindings/net/mscc-phy-vsc8531.txt
index bdefefc6..1abf4b6 100644
--- a/Documentation/devicetree/bindings/net/mscc-phy-vsc8531.txt
+++ b/Documentation/devicetree/bindings/net/mscc-phy-vsc8531.txt
@@ -27,6 +27,12 @@ Optional properties:
'vddmac'.
Default value is 0%.
Ref: Table:1 - Edge rate change (below).
+- vsc8531,led-0-mode : LED mode. Specify how the LED[0] should behave.
+ Allowed values is listed in the 'PHY LED Mode' -
+ Table 2 (below). Default value is 1.
+- vsc8531,led-1-mode : LED mode. Specify how the LED[1] should behave.
+ Allowed values is listed in the 'PHY LED Mode' -
+ Table 2 (below). Default value is 2.
Table: 1 - Edge rate change
----------------------------------------------------------------|
@@ -54,10 +60,43 @@ Table: 1 - Edge rate change
| (slowest) |
|---------------------------------------------------------------|
+Table: 2 - PHY LED Mode
+|-----------------------------------------------|
+| LINK_ACTIVITY | 0 |
+|-----------------------------------------------|
+| LINK_1000_ACTIVITY | 1 |
+|-----------------------------------------------|
+| LINK_100_ACTIVITY | 2 |
+|-----------------------------------------------|
+| LINK_10_ACTIVITY | 3 |
+|-----------------------------------------------|
+| LINK_100_1000_ACTIVITY | 4 |
+|-----------------------------------------------|
+| LINK_10_1000_ACTIVITY | 5 |
+|-----------------------------------------------|
+| LINK_10_100_ACTIVITY | 6 |
+|-----------------------------------------------|
+| DUPLEX_COLLISION | 8 |
+|-----------------------------------------------|
+| COLLISION | 9 |
+|-----------------------------------------------|
+| ACTIVITY | 10 |
+|-----------------------------------------------|
+| AUTONEG_FAULT | 12 |
+|-----------------------------------------------|
+| SERIAL_MODE | 13 |
+|-----------------------------------------------|
+| FORCE_LED_OFF | 14 |
+|-----------------------------------------------|
+| FORCE_LED_ON | 15 |
+|-----------------------------------------------|
+
Example:
vsc8531_0: ethernet-phy@0 {
compatible = "ethernet-phy-id0007.0570";
vsc8531,vddmac = <3300>;
vsc8531,edge-slowdown = <7>;
+ vsc8531,led-0-mode = <1>;
+ vsc8531,led-1-mode = <2>;
};
diff --git a/drivers/net/phy/mscc.c b/drivers/net/phy/mscc.c
index e03ead8..ec808bf 100644
--- a/drivers/net/phy/mscc.c
+++ b/drivers/net/phy/mscc.c
@@ -25,6 +25,25 @@ enum rgmii_rx_clock_delay {
RGMII_RX_CLK_DELAY_3_4_NS = 7
};
+enum phy_led_mode {
+ LINK_ACTIVITY = 0,
+ LINK_1000_ACTIVITY = 1,
+ LINK_100_ACTIVITY = 2,
+ LINK_10_ACTIVITY = 3,
+ LINK_100_1000_ACTIVITY = 4,
+ LINK_10_1000_ACTIVITY = 5,
+ LINK_10_100_ACTIVITY = 6,
+ LINK_RESERVED = 7,
+ DUPLEX_COLLISION = 8,
+ COLLISION = 9,
+ ACTIVITY = 10,
+ LINK_RESERVED_1 = 11,
+ AUTONEG_FAULT = 12,
+ SERIAL_MODE = 13,
+ FORCE_LED_OFF = 14,
+ FORCE_LED_ON = 15,
+};
+
/* Microsemi VSC85xx PHY registers */
/* IEEE 802. Std Registers */
#define MSCC_PHY_BYPASS_CONTROL 18
@@ -52,6 +71,11 @@ enum rgmii_rx_clock_delay {
#define MSCC_PHY_DEV_AUX_CNTL 28
#define HP_AUTO_MDIX_X_OVER_IND_MASK 0x2000
+#define MSCC_PHY_LED_MODE_SEL 29
+#define LED_1_MODE_SEL_MASK 0x00F0
+#define LED_0_MODE_SEL_MASK 0x000F
+#define LED_1_MODE_SEL_POS 4
+
#define MSCC_EXT_PAGE_ACCESS 31
#define MSCC_PHY_PAGE_STANDARD 0x0000 /* Standard registers */
#define MSCC_PHY_PAGE_EXTENDED 0x0001 /* Extended registers */
@@ -99,6 +123,8 @@ enum rgmii_rx_clock_delay {
struct vsc8531_private {
int rate_magic;
+ u8 led_0_mode;
+ u8 led_1_mode;
};
#ifdef CONFIG_OF_MDIO
@@ -123,6 +149,28 @@ static int vsc85xx_phy_page_set(struct phy_device *phydev, u8 page)
return rc;
}
+static int vsc85xx_led_cntl_set(struct phy_device *phydev,
+ u8 led_num,
+ u8 mode)
+{
+ int rc;
+ u16 reg_val;
+
+ mutex_lock(&phydev->lock);
+ reg_val = phy_read(phydev, MSCC_PHY_LED_MODE_SEL);
+ if (led_num) {
+ reg_val &= ~LED_1_MODE_SEL_MASK;
+ reg_val |= (((u16)mode << LED_1_MODE_SEL_POS) &
+ LED_1_MODE_SEL_MASK);
+ } else {
+ reg_val |= ((u16)mode & LED_0_MODE_SEL_MASK);
+ }
+ rc = phy_write(phydev, MSCC_PHY_LED_MODE_SEL, reg_val);
+ mutex_unlock(&phydev->lock);
+
+ return rc;
+}
+
static int vsc85xx_mdix_get(struct phy_device *phydev, u8 *mdix)
{
u16 reg_val;
@@ -499,6 +547,13 @@ static int vsc85xx_config_init(struct phy_device *phydev)
if (rc)
return rc;
+ rc = vsc85xx_led_cntl_set(phydev, 1, vsc8531->led_1_mode);
+ if (rc)
+ return rc;
+ rc = vsc85xx_led_cntl_set(phydev, 0, vsc8531->led_0_mode);
+ if (rc)
+ return rc;
+
rc = genphy_config_init(phydev);
return rc;
@@ -555,8 +610,13 @@ static int vsc85xx_read_status(struct phy_device *phydev)
static int vsc85xx_probe(struct phy_device *phydev)
{
+ int rc;
int rate_magic;
+ u8 led_0_mode;
+ u8 led_1_mode;
struct vsc8531_private *vsc8531;
+ struct device *dev = &phydev->mdio.dev;
+ struct device_node *of_node = dev->of_node;
rate_magic = vsc85xx_edge_rate_magic_get(phydev);
if (rate_magic < 0)
@@ -570,6 +630,18 @@ static int vsc85xx_probe(struct phy_device *phydev)
vsc8531->rate_magic = rate_magic;
+ /* LED[0] and LED[1] mode */
+ rc = of_property_read_u8(of_node, "vsc8531,led-0-mode", &led_0_mode);
+ if (rc != 0)
+ vsc8531->led_0_mode = LINK_1000_ACTIVITY;
+ else
+ vsc8531->led_0_mode = led_0_mode;
+ rc = of_property_read_u8(of_node, "vsc8531,led-1-mode", &led_1_mode);
+ if (rc != 0)
+ vsc8531->led_1_mode = LINK_100_ACTIVITY;
+ else
+ vsc8531->led_1_mode = led_1_mode;
+
return 0;
}
--
2.7.4
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