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68 lines
2.2 KiB
Diff
68 lines
2.2 KiB
Diff
From b1e290ec968186530ec59479adfba89d2cfe21c8 Mon Sep 17 00:00:00 2001
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From: Vladimir Oltean <olteanv@gmail.com>
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Date: Sun, 24 Mar 2019 00:18:46 +0200
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Subject: [PATCH] net: phy: bcm54xx: Encode link speed and activity
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into LEDs
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Previously the green and amber LEDs on this quad PHY were solid, to
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indicate an encoding of the link speed (10/100/1000).
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This keeps the LEDs always on just as before, but now they flash on
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Rx/Tx activity.
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Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
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Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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drivers/net/phy/broadcom.c | 13 +++++++++++++
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include/linux/brcmphy.h | 16 ++++++++++++++++
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2 files changed, 29 insertions(+)
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--- a/drivers/net/phy/broadcom.c
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+++ b/drivers/net/phy/broadcom.c
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@@ -345,6 +345,19 @@ static int bcm54xx_config_init(struct ph
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bcm54xx_phydsp_config(phydev);
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+ /* Encode link speed into LED1 and LED3 pair (green/amber).
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+ * Also flash these two LEDs on activity. This means configuring
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+ * them for MULTICOLOR and encoding link/activity into them.
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+ */
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+ val = BCM5482_SHD_LEDS1_LED1(BCM_LED_SRC_MULTICOLOR1) |
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+ BCM5482_SHD_LEDS1_LED3(BCM_LED_SRC_MULTICOLOR1);
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+ bcm_phy_write_shadow(phydev, BCM5482_SHD_LEDS1, val);
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+
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+ val = BCM_LED_MULTICOLOR_IN_PHASE |
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+ BCM5482_SHD_LEDS1_LED1(BCM_LED_MULTICOLOR_LINK_ACT) |
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+ BCM5482_SHD_LEDS1_LED3(BCM_LED_MULTICOLOR_LINK_ACT);
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+ bcm_phy_write_exp(phydev, BCM_EXP_MULTICOLOR, val);
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+
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return 0;
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}
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--- a/include/linux/brcmphy.h
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+++ b/include/linux/brcmphy.h
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@@ -148,6 +148,22 @@
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#define BCM_LED_SRC_OFF 0xe /* Tied high */
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#define BCM_LED_SRC_ON 0xf /* Tied low */
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+/*
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+ * Broadcom Multicolor LED configurations (expansion register 4)
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+ */
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+#define BCM_EXP_MULTICOLOR (MII_BCM54XX_EXP_SEL_ER + 0x04)
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+#define BCM_LED_MULTICOLOR_IN_PHASE BIT(8)
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+#define BCM_LED_MULTICOLOR_LINK_ACT 0x0
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+#define BCM_LED_MULTICOLOR_SPEED 0x1
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+#define BCM_LED_MULTICOLOR_ACT_FLASH 0x2
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+#define BCM_LED_MULTICOLOR_FDX 0x3
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+#define BCM_LED_MULTICOLOR_OFF 0x4
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+#define BCM_LED_MULTICOLOR_ON 0x5
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+#define BCM_LED_MULTICOLOR_ALT 0x6
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+#define BCM_LED_MULTICOLOR_FLASH 0x7
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+#define BCM_LED_MULTICOLOR_LINK 0x8
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+#define BCM_LED_MULTICOLOR_ACT 0x9
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+#define BCM_LED_MULTICOLOR_PROGRAM 0xa
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/*
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* BCM5482: Shadow registers
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