brcm2708: add kernel 4.14 support

Patch generation process:
- rebase rpi/rpi-4.14.y on v4.14.89 from linux-stable
- git format-patch v4.14.89

Patches skipped during rebase:
- lan78xx: Read MAC address from DT if present
- lan78xx: Enable LEDs and auto-negotiation
- Revert "softirq: Let ksoftirqd do its job"
- sc16is7xx: Fix for multi-channel stall
- lan78xx: Ignore DT MAC address if already valid
- lan78xx: Simple patch to prevent some crashes
- tcp_write_queue_purge clears all the SKBs in the write queue
- Revert "lan78xx: Simple patch to prevent some crashes"
- lan78xx: Connect phy early
- Arm: mm: ftrace: Only set text back to ro after kernel has been marked ro
- Revert "Revert "softirq: Let ksoftirqd do its job""
- ASoC: cs4265: SOC_SINGLE register value error fix
- Revert "ASoC: cs4265: SOC_SINGLE register value error fix"
- Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends"
- Revert "Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends""

Patches dropped after rebase:
- net: Add non-mainline source for rtl8192cu wlan
- net: Fix rtl8192cu build errors on other platforms
- brcm: adds support for BCM43341 wifi
- brcmfmac: Mute expected startup 'errors'
- ARM64: Fix build break for RTL8187/RTL8192CU wifi
- ARM64: Enable RTL8187/RTL8192CU wifi in build config
- This is the driver for Sony CXD2880 DVB-T2/T tuner + demodulator
- brcmfmac: add CLM download support
- brcmfmac: request_firmware_direct is quieter
- Sets the BCDC priority to constant 0
- brcmfmac: Disable ARP offloading when promiscuous
- brcmfmac: Avoid possible out-of-bounds read
- brcmfmac: Delete redundant length check
- net: rtl8192cu: Normalize indentation
- net: rtl8192cu: Fix implicit fallthrough warnings
- Revert "Sets the BCDC priority to constant 0"
- media: cxd2880: Bump to match 4.18.y version
- media: cxd2880-spi: Bump to match 4.18.y version
- Revert "mm: alloc_contig: re-allow CMA to compact FS pages"
- Revert "Revert "mm: alloc_contig: re-allow CMA to compact FS pages""
- cxd2880: CXD2880_SPI_DRV should select DVB_CXD2880 with
  MEDIA_SUBDRV_AUTOSELECT
- 950-0421-HID-hid-bigbenff-driver-for-BigBen-Interactive-PS3OF.patch
- 950-0453-Add-hid-bigbenff-to-list-of-have_special_driver-for-.patch

Make I2C built-in instead of modular as in upstream defconfig; also the
easiest way to get MFD_ARIZONA enabled, which is required by
kmod-sound-soc-rpi-cirrus.
Add missing compatible strings from
4.9/960-add-rasbperrypi-compatible.patch, using upstream names for
compute modules.
Add extra patch to enable the LEDs on lan78xx.

Compile-tested: bcm2708, bcm2709, bcm2710 (with CONFIG_ALL_KMODS=y)
Runtime-tested: bcm2708, bcm2710

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>

1 files changed, 82 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.14/950-0271-net-lan78xx-Add-support-for-VLAN-tag-stripping.patch b/target/linux/brcm2708/patches-4.14/950-0271-net-lan78xx-Add-support-for-VLAN-tag-stripping.patch
new file mode 100644
index 0000000000..e1e5500cbc
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.14/950-0271-net-lan78xx-Add-support-for-VLAN-tag-stripping.patch
@@ -0,0 +1,82 @@
+From 9d4c65d0e7ebfe20bd24e65d52b1df56e90d498e Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Tue, 10 Apr 2018 15:27:51 +0100
+Subject: [PATCH 271/454] net: lan78xx: Add support for VLAN tag stripping.
+
+The chip supports stripping the VLAN tag and reporting it
+in metadata. Implement this as it also appears to solve the
+issues observed in checksum computation.
+
+See #2458.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/net/usb/lan78xx.c | 22 ++++++++++++++++++++++
+ 1 file changed, 22 insertions(+)
+
+--- a/drivers/net/usb/lan78xx.c
++++ b/drivers/net/usb/lan78xx.c
+@@ -64,6 +64,7 @@
+ #define DEFAULT_RX_CSUM_ENABLE		(true)
+ #define DEFAULT_TSO_CSUM_ENABLE		(true)
+ #define DEFAULT_VLAN_FILTER_ENABLE	(true)
++#define DEFAULT_VLAN_RX_OFFLOAD		(true)
+ #define TX_OVERHEAD			(8)
+ #define RXW_PADDING			2
+ 
+@@ -2275,6 +2276,11 @@ static int lan78xx_set_features(struct n
+ 		pdata->rfe_ctl &= ~(RFE_CTL_ICMP_COE_ | RFE_CTL_IGMP_COE_);
+ 	}
+ 
++	if (features & NETIF_F_HW_VLAN_CTAG_RX)
++		pdata->rfe_ctl |= RFE_CTL_VLAN_STRIP_;
++	else
++		pdata->rfe_ctl &= ~RFE_CTL_VLAN_STRIP_;
++
+ 	if (features & NETIF_F_HW_VLAN_CTAG_FILTER)
+ 		pdata->rfe_ctl |= RFE_CTL_VLAN_FILTER_;
+ 	else
+@@ -2888,6 +2894,9 @@ static int lan78xx_bind(struct lan78xx_n
+ 	if (DEFAULT_TSO_CSUM_ENABLE)
+ 		dev->net->features |= NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_SG;
+ 
++	if (DEFAULT_VLAN_RX_OFFLOAD)
++		dev->net->features |= NETIF_F_HW_VLAN_CTAG_RX;
++
+ 	if (DEFAULT_VLAN_FILTER_ENABLE)
+ 		dev->net->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
+ 
+@@ -2968,6 +2977,16 @@ static void lan78xx_rx_csum_offload(stru
+ 	}
+ }
+ 
++static void lan78xx_rx_vlan_offload(struct lan78xx_net *dev,
++				    struct sk_buff *skb,
++				    u32 rx_cmd_a, u32 rx_cmd_b)
++{
++	if ((dev->net->features & NETIF_F_HW_VLAN_CTAG_RX) &&
++	    (rx_cmd_a & RX_CMD_A_FVTG_))
++		__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
++				       (rx_cmd_b & 0xffff));
++}
++
+ static void lan78xx_skb_return(struct lan78xx_net *dev, struct sk_buff *skb)
+ {
+ 	int		status;
+@@ -3032,6 +3051,8 @@ static int lan78xx_rx(struct lan78xx_net
+ 			if (skb->len == size) {
+ 				lan78xx_rx_csum_offload(dev, skb,
+ 							rx_cmd_a, rx_cmd_b);
++				lan78xx_rx_vlan_offload(dev, skb,
++							rx_cmd_a, rx_cmd_b);
+ 
+ 				skb_trim(skb, skb->len - 4); /* remove fcs */
+ 				skb->truesize = size + sizeof(struct sk_buff);
+@@ -3050,6 +3071,7 @@ static int lan78xx_rx(struct lan78xx_net
+ 			skb_set_tail_pointer(skb2, size);
+ 
+ 			lan78xx_rx_csum_offload(dev, skb2, rx_cmd_a, rx_cmd_b);
++			lan78xx_rx_vlan_offload(dev, skb2, rx_cmd_a, rx_cmd_b);
+ 
+ 			skb_trim(skb2, skb2->len - 4); /* remove fcs */
+ 			skb2->truesize = size + sizeof(struct sk_buff);