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Add kernel 5.15 for RPI4 support

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Ycarus (Yannick Chabanois) 2021-11-24 18:32:01 +01:00
parent e961d478cd
commit df88a19bbd
638 changed files with 239907 additions and 0 deletions
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54
root/target/linux/bcm27xx/patches-5.15/0063-lan78xx-Enable-LEDs-and-auto-negotiation.patch Normal file
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@ -0,0 +1,54 @@
From 68c76ce879b7e970a748f8c2686f25ac3b817f7e Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Tue, 17 Oct 2017 15:04:29 +0100
Subject: [PATCH 063/634] 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 | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index 63cd72c5f580..3d39f34bc641 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -2714,6 +2714,11 @@ static int lan78xx_reset(struct lan78xx_net *dev)
int ret;
u32 buf;
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);
if (ret < 0)
@@ -2795,6 +2800,10 @@ static int lan78xx_reset(struct lan78xx_net *dev)
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);
if (ret < 0)
return ret;
@@ -2893,6 +2902,9 @@ static int lan78xx_reset(struct lan78xx_net *dev)
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);
if (ret < 0)
return ret;
--
2.33.1