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, 67 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.14/950-0257-lan78xx-Read-LED-states-from-Device-Tree.patch b/target/linux/brcm2708/patches-4.14/950-0257-lan78xx-Read-LED-states-from-Device-Tree.patch
new file mode 100644
index 0000000000..0a28a38076
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.14/950-0257-lan78xx-Read-LED-states-from-Device-Tree.patch
@@ -0,0 +1,67 @@
+From b6be512663a34f85e79bd6dd6caeece57d9f6fe0 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Wed, 21 Mar 2018 15:59:26 +0000
+Subject: [PATCH 257/454] lan78xx: Read LED states from Device Tree
+
+Add support for DT property "microchip,led-modes", a vector of two
+cells (u32s) in the range 0-15, each of which sets the mode for one
+of the two LEDs. The possible values are:
+
+    0=link/activity          1=link1000/activity
+    2=link100/activity       3=link10/activity
+    4=link100/1000/activity  5=link10/1000/activity
+    6=link10/100/activity    14=off    15=on
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ drivers/net/usb/lan78xx.c | 27 +++++++++++++++++++--------
+ 1 file changed, 19 insertions(+), 8 deletions(-)
+
+--- a/drivers/net/usb/lan78xx.c
++++ b/drivers/net/usb/lan78xx.c
+@@ -1998,7 +1998,9 @@ static int lan78xx_phy_init(struct lan78
+ {
+ 	int ret;
+ 	u32 mii_adv;
+-	u32 led_modes;
++	u32 led_modes[2];
++	u32 led_modes_reg;
++	int i;
+ 	struct phy_device *phydev = dev->net->phydev;
+ 
+ 	phydev = phy_find_first(dev->mdiobus);
+@@ -2071,18 +2073,27 @@ static int lan78xx_phy_init(struct lan78
+ 	mii_adv = (u32)mii_advertise_flowctrl(dev->fc_request_control);
+ 	phydev->advertising |= mii_adv_to_ethtool_adv_t(mii_adv);
+ 
+-	/* Change LED defaults:
+-	 *   orange = link1000/activity
+-	 *   green  = link10/link100/activity
++	/* Set LED modes:
+ 	 * led: 0=link/activity          1=link1000/activity
+ 	 *      2=link100/activity       3=link10/activity
+ 	 *      4=link100/1000/activity  5=link10/1000/activity
+ 	 *      6=link10/100/activity    14=off    15=on
+ 	 */
+-	led_modes = phy_read(phydev, 0x1d);
+-	led_modes &= ~0xff;
+-	led_modes |= (1 << 0) | (6 << 4);
+-	(void)phy_write(phydev, 0x1d, led_modes);
++
++	memset(led_modes, ~0, sizeof(led_modes));
++
++	of_property_read_u32_array(dev->udev->dev.of_node,
++				   "microchip,led-modes",
++				   led_modes, ARRAY_SIZE(led_modes));
++
++	led_modes_reg = phy_read(phydev, 0x1d);
++	for (i = 0; i < ARRAY_SIZE(led_modes); i++) {
++		if (led_modes[i] != ~0) {
++			led_modes_reg &= ~(0xf << (i * 4));
++			led_modes_reg |= (led_modes[i] & 0xf) << (i * 4);
++		}
++	}
++	(void)phy_write(phydev, 0x1d, led_modes_reg);
+ 
+ 	genphy_config_aneg(phydev);
+