diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0032-lan78xx-Enable-LEDs-and-auto-negotiation.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0032-lan78xx-Enable-LEDs-and-auto-negotiation.patch | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0032-lan78xx-Enable-LEDs-and-auto-negotiation.patch b/target/linux/brcm2708/patches-4.19/950-0032-lan78xx-Enable-LEDs-and-auto-negotiation.patch new file mode 100644 index 0000000000..847d8f5102 --- /dev/null +++ b/target/linux/brcm2708/patches-4.19/950-0032-lan78xx-Enable-LEDs-and-auto-negotiation.patch @@ -0,0 +1,48 @@ +From 645eb2cf211c04496c9f5daca23ab16ce796b0df Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.org> +Date: Tue, 17 Oct 2017 15:04:29 +0100 +Subject: [PATCH] lan78xx: Enable LEDs and auto-negotiation + +For applications of the LAN78xx that don't have valid programmed +EEPROMs or OTPs, enabling both LEDs and auto-negotiation by default +seems reasonable. + +Signed-off-by: Phil Elwell <phil@raspberrypi.org> +--- + drivers/net/usb/lan78xx.c | 11 +++++++++++ + 1 file changed, 11 insertions(+) + +--- a/drivers/net/usb/lan78xx.c ++++ b/drivers/net/usb/lan78xx.c +@@ -2475,6 +2475,11 @@ static int lan78xx_reset(struct lan78xx_ + int ret = 0; + unsigned long timeout; + u8 sig; ++ bool has_eeprom; ++ bool has_otp; ++ ++ has_eeprom = !lan78xx_read_eeprom(dev, 0, 0, NULL); ++ has_otp = !lan78xx_read_otp(dev, 0, 0, NULL); + + ret = lan78xx_read_reg(dev, HW_CFG, &buf); + buf |= HW_CFG_LRST_; +@@ -2528,6 +2533,9 @@ static int lan78xx_reset(struct lan78xx_ + + ret = lan78xx_read_reg(dev, HW_CFG, &buf); + buf |= HW_CFG_MEF_; ++ /* If no valid EEPROM and no valid OTP, enable the LEDs by default */ ++ if (!has_eeprom && !has_otp) ++ buf |= HW_CFG_LED0_EN_ | HW_CFG_LED1_EN_; + ret = lan78xx_write_reg(dev, HW_CFG, buf); + + ret = lan78xx_read_reg(dev, USB_CFG0, &buf); +@@ -2583,6 +2591,9 @@ static int lan78xx_reset(struct lan78xx_ + buf |= MAC_CR_AUTO_DUPLEX_ | MAC_CR_AUTO_SPEED_; + } + } ++ /* If no valid EEPROM and no valid OTP, enable AUTO negotiation */ ++ if (!has_eeprom && !has_otp) ++ buf |= MAC_CR_AUTO_DUPLEX_ | MAC_CR_AUTO_SPEED_; + ret = lan78xx_write_reg(dev, MAC_CR, buf); + + ret = lan78xx_read_reg(dev, MAC_TX, &buf); |