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net: phy: bcm54xx: Encode link speed and activity into LEDs

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Previously the green and amber LEDs on this quad PHY were solid, to
indicate an encoding of the link speed (10/100/1000).

This keeps the LEDs always on just as before, but now they flash on
Rx/Tx activity.

Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vladimir Oltean 2019-03-24 00:18:46 +02:00 committed by David S. Miller
parent 9926cb5f8b
commit 450895d04b
2 changed files with 29 additions and 0 deletions
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13
drivers/net/phy/broadcom.c
View File

@ -323,6 +323,19 @@ static int bcm54xx_config_init(struct phy_device *phydev)
bcm54xx_phydsp_config(phydev);
/* Encode link speed into LED1 and LED3 pair (green/amber).
* Also flash these two LEDs on activity. This means configuring
* them for MULTICOLOR and encoding link/activity into them.
*/
val = BCM5482_SHD_LEDS1_LED1(BCM_LED_SRC_MULTICOLOR1) |
BCM5482_SHD_LEDS1_LED3(BCM_LED_SRC_MULTICOLOR1);
bcm_phy_write_shadow(phydev, BCM5482_SHD_LEDS1, val);
val = BCM_LED_MULTICOLOR_IN_PHASE |
BCM5482_SHD_LEDS1_LED1(BCM_LED_MULTICOLOR_LINK_ACT) |
BCM5482_SHD_LEDS1_LED3(BCM_LED_MULTICOLOR_LINK_ACT);
bcm_phy_write_exp(phydev, BCM_EXP_MULTICOLOR, val);
return 0;
}

16
include/linux/brcmphy.h
View File

@ -148,6 +148,22 @@
#define BCM_LED_SRC_OFF 0xe /* Tied high */
#define BCM_LED_SRC_ON 0xf /* Tied low */
/*
* Broadcom Multicolor LED configurations (expansion register 4)
*/
#define BCM_EXP_MULTICOLOR (MII_BCM54XX_EXP_SEL_ER + 0x04)
#define BCM_LED_MULTICOLOR_IN_PHASE BIT(8)
#define BCM_LED_MULTICOLOR_LINK_ACT 0x0
#define BCM_LED_MULTICOLOR_SPEED 0x1
#define BCM_LED_MULTICOLOR_ACT_FLASH 0x2
#define BCM_LED_MULTICOLOR_FDX 0x3
#define BCM_LED_MULTICOLOR_OFF 0x4
#define BCM_LED_MULTICOLOR_ON 0x5
#define BCM_LED_MULTICOLOR_ALT 0x6
#define BCM_LED_MULTICOLOR_FLASH 0x7
#define BCM_LED_MULTICOLOR_LINK 0x8
#define BCM_LED_MULTICOLOR_ACT 0x9
#define BCM_LED_MULTICOLOR_PROGRAM 0xa
/*
* BCM5482: Shadow registers