kernel: generic: Add kernel 4.14 support

This adds initial support for kernel 4.14 based on the patches for
kernel 4.9.

In the configuration I deactivated some of the new possible security
features like:
CONFIG_REFCOUNT_FULL
CONFIG_SLAB_FREELIST_HARDENED
CONFIG_SOFTLOCKUP_DETECTOR
CONFIG_WARN_ALL_UNSEEDED_RANDOM

And these overlay FS options are also deactivated:
CONFIG_OVERLAY_FS_INDEX
CONFIG_OVERLAY_FS_REDIRECT_DIR

I activated this:
CONFIG_FORTIFY_SOURCE
CONFIG_POSIX_TIMERS
CONFIG_SLAB_MERGE_DEFAULT
CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED

I am not sure if I did the porting correct for the following patches:
target/linux/generic/backport-4.14/020-backport_netfilter_rtcache.patch
target/linux/generic/hack-4.14/220-gc_sections.patch
target/linux/generic/hack-4.14/321-powerpc_crtsavres_prereq.patch
target/linux/generic/pending-4.14/305-mips_module_reloc.patch
target/linux/generic/pending-4.14/611-netfilter_match_bypass_default_table.patch
target/linux/generic/pending-4.14/680-NET-skip-GRO-for-foreign-MAC-addresses.patch

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

1 files changed, 70 insertions, 0 deletions

diff --git a/target/linux/generic/pending-4.14/180-net-phy-at803x-add-support-for-AT8032.patch b/target/linux/generic/pending-4.14/180-net-phy-at803x-add-support-for-AT8032.patch
new file mode 100644
index 0000000000..3b1a41a23b
--- /dev/null
+++ b/target/linux/generic/pending-4.14/180-net-phy-at803x-add-support-for-AT8032.patch
@@ -0,0 +1,70 @@
+From: Felix Fietkau <nbd@nbd.name>
+Subject: net: phy: at803x: add support for AT8032
+
+Like AT8030, this PHY needs the GPIO reset workaround
+
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+
+--- a/drivers/net/phy/at803x.c
++++ b/drivers/net/phy/at803x.c
+@@ -62,6 +62,7 @@
+ 
+ #define ATH8030_PHY_ID 0x004dd076
+ #define ATH8031_PHY_ID 0x004dd074
++#define ATH8032_PHY_ID 0x004dd023
+ #define ATH8035_PHY_ID 0x004dd072
+ #define AT803X_PHY_ID_MASK			0xffffffef
+ 
+@@ -260,7 +261,8 @@ static int at803x_probe(struct phy_devic
+ 	if (!priv)
+ 		return -ENOMEM;
+ 
+-	if (phydev->drv->phy_id != ATH8030_PHY_ID)
++	if (phydev->drv->phy_id != ATH8030_PHY_ID &&
++	    phydev->drv->phy_id != ATH8032_PHY_ID)
+ 		goto does_not_require_reset_workaround;
+ 
+ 	gpiod_reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
+@@ -336,7 +338,7 @@ static void at803x_link_change_notify(st
+ 	struct at803x_priv *priv = phydev->priv;
+ 
+ 	/*
+-	 * Conduct a hardware reset for AT8030 every time a link loss is
++	 * Conduct a hardware reset for AT8030/2 every time a link loss is
+ 	 * signalled. This is necessary to circumvent a hardware bug that
+ 	 * occurs when the cable is unplugged while TX packets are pending
+ 	 * in the FIFO. In such cases, the FIFO enters an error mode it
+@@ -448,6 +450,24 @@ static struct phy_driver at803x_driver[]
+ 	.aneg_done		= at803x_aneg_done,
+ 	.ack_interrupt		= &at803x_ack_interrupt,
+ 	.config_intr		= &at803x_config_intr,
++}, {
++	/* ATHEROS 8032 */
++	.phy_id			= ATH8032_PHY_ID,
++	.name			= "Atheros 8032 ethernet",
++	.phy_id_mask		= 0xffffffef,
++	.probe			= at803x_probe,
++	.config_init		= at803x_config_init,
++	.link_change_notify	= at803x_link_change_notify,
++	.set_wol		= at803x_set_wol,
++	.get_wol		= at803x_get_wol,
++	.suspend		= at803x_suspend,
++	.resume			= at803x_resume,
++	.features		= PHY_BASIC_FEATURES,
++	.flags			= PHY_HAS_INTERRUPT,
++	.config_aneg		= genphy_config_aneg,
++	.read_status		= genphy_read_status,
++	.ack_interrupt		= at803x_ack_interrupt,
++	.config_intr		= at803x_config_intr,
+ } };
+ 
+ module_phy_driver(at803x_driver);
+@@ -455,6 +475,7 @@ module_phy_driver(at803x_driver);
+ static struct mdio_device_id __maybe_unused atheros_tbl[] = {
+ 	{ ATH8030_PHY_ID, AT803X_PHY_ID_MASK },
+ 	{ ATH8031_PHY_ID, AT803X_PHY_ID_MASK },
++	{ ATH8032_PHY_ID, AT803X_PHY_ID_MASK },
+ 	{ ATH8035_PHY_ID, AT803X_PHY_ID_MASK },
+ 	{ }
+ };