brcm2708: add linux 4.19 support

Boot tested on Raspberry Pi B+ (BCM2708) and Raspberry Pi 2 (BCM2709)

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.19/950-0549-net-genet-enable-link-energy-detect-powerdown-for-ex.patch b/target/linux/brcm2708/patches-4.19/950-0549-net-genet-enable-link-energy-detect-powerdown-for-ex.patch
new file mode 100644
index 0000000000..bd8a0278e0
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0549-net-genet-enable-link-energy-detect-powerdown-for-ex.patch
@@ -0,0 +1,34 @@
+From 03bd32474bf378c1537775970b35c7081779aec4 Mon Sep 17 00:00:00 2001
+From: Jonathan Bell <jonathan@raspberrypi.org>
+Date: Tue, 14 May 2019 17:17:59 +0100
+Subject: [PATCH 549/703] net: genet: enable link energy detect powerdown for
+ external PHYs
+
+There are several warts surrounding bcmgenet_mii_probe() as this
+function is called from ndo_open, but it's calling registration-type
+functions. The probe should be called at probe time and refactored
+such that the PHY device data can be extracted to limit the scope
+of this flag to Broadcom PHYs.
+
+For now, pass this flag in as it puts our attached PHY into a low-power
+state when disconnected.
+
+Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
+---
+ drivers/net/ethernet/broadcom/genet/bcmmii.c | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+--- a/drivers/net/ethernet/broadcom/genet/bcmmii.c
++++ b/drivers/net/ethernet/broadcom/genet/bcmmii.c
+@@ -280,7 +280,10 @@ int bcmgenet_mii_probe(struct net_device
+ 	int ret;
+ 
+ 	/* Communicate the integrated PHY revision */
+-	phy_flags = priv->gphy_rev;
++	if (priv->internal_phy)
++		phy_flags = priv->gphy_rev;
++	else
++		phy_flags = PHY_BRCM_AUTO_PWRDWN_ENABLE;
+ 
+ 	/* Initialize link state variables that bcmgenet_mii_setup() uses */
+ 	priv->old_link = -1;