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- From 10346eaf22b2540aaf0afc71aa8db931038054a2 Mon Sep 17 00:00:00 2001
- From: Phil Elwell <[email protected]>
- Date: Tue, 17 Oct 2017 15:04:29 +0100
- Subject: [PATCH 033/782] 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 <[email protected]>
- ---
- drivers/net/usb/lan78xx.c | 11 +++++++++++
- 1 file changed, 11 insertions(+)
- --- a/drivers/net/usb/lan78xx.c
- +++ b/drivers/net/usb/lan78xx.c
- @@ -2472,6 +2472,11 @@ 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_;
- @@ -2525,6 +2530,9 @@ 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);
- @@ -2580,6 +2588,9 @@ 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);
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