diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.14/950-0257-lan78xx-Read-LED-states-from-Device-Tree.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.14/950-0257-lan78xx-Read-LED-states-from-Device-Tree.patch | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.14/950-0257-lan78xx-Read-LED-states-from-Device-Tree.patch b/target/linux/brcm2708/patches-4.14/950-0257-lan78xx-Read-LED-states-from-Device-Tree.patch new file mode 100644 index 0000000000..0a28a38076 --- /dev/null +++ b/target/linux/brcm2708/patches-4.14/950-0257-lan78xx-Read-LED-states-from-Device-Tree.patch @@ -0,0 +1,67 @@ +From b6be512663a34f85e79bd6dd6caeece57d9f6fe0 Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.org> +Date: Wed, 21 Mar 2018 15:59:26 +0000 +Subject: [PATCH 257/454] lan78xx: Read LED states from Device Tree + +Add support for DT property "microchip,led-modes", a vector of two +cells (u32s) in the range 0-15, each of which sets the mode for one +of the two LEDs. The possible values are: + + 0=link/activity 1=link1000/activity + 2=link100/activity 3=link10/activity + 4=link100/1000/activity 5=link10/1000/activity + 6=link10/100/activity 14=off 15=on + +Signed-off-by: Phil Elwell <phil@raspberrypi.org> +--- + drivers/net/usb/lan78xx.c | 27 +++++++++++++++++++-------- + 1 file changed, 19 insertions(+), 8 deletions(-) + +--- a/drivers/net/usb/lan78xx.c ++++ b/drivers/net/usb/lan78xx.c +@@ -1998,7 +1998,9 @@ static int lan78xx_phy_init(struct lan78 + { + int ret; + u32 mii_adv; +- u32 led_modes; ++ u32 led_modes[2]; ++ u32 led_modes_reg; ++ int i; + struct phy_device *phydev = dev->net->phydev; + + phydev = phy_find_first(dev->mdiobus); +@@ -2071,18 +2073,27 @@ static int lan78xx_phy_init(struct lan78 + mii_adv = (u32)mii_advertise_flowctrl(dev->fc_request_control); + phydev->advertising |= mii_adv_to_ethtool_adv_t(mii_adv); + +- /* Change LED defaults: +- * orange = link1000/activity +- * green = link10/link100/activity ++ /* Set LED modes: + * led: 0=link/activity 1=link1000/activity + * 2=link100/activity 3=link10/activity + * 4=link100/1000/activity 5=link10/1000/activity + * 6=link10/100/activity 14=off 15=on + */ +- led_modes = phy_read(phydev, 0x1d); +- led_modes &= ~0xff; +- led_modes |= (1 << 0) | (6 << 4); +- (void)phy_write(phydev, 0x1d, led_modes); ++ ++ memset(led_modes, ~0, sizeof(led_modes)); ++ ++ of_property_read_u32_array(dev->udev->dev.of_node, ++ "microchip,led-modes", ++ led_modes, ARRAY_SIZE(led_modes)); ++ ++ led_modes_reg = phy_read(phydev, 0x1d); ++ for (i = 0; i < ARRAY_SIZE(led_modes); i++) { ++ if (led_modes[i] != ~0) { ++ led_modes_reg &= ~(0xf << (i * 4)); ++ led_modes_reg |= (led_modes[i] & 0xf) << (i * 4); ++ } ++ } ++ (void)phy_write(phydev, 0x1d, led_modes_reg); + + genphy_config_aneg(phydev); + |