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, 95 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.14/950-0227-overlays-Add-sc16is752-i2c-overlay.patch b/target/linux/brcm2708/patches-4.14/950-0227-overlays-Add-sc16is752-i2c-overlay.patch
new file mode 100644
index 0000000000..5b97327ea6
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.14/950-0227-overlays-Add-sc16is752-i2c-overlay.patch
@@ -0,0 +1,95 @@
+From c286380fe677e404af0a1226c6589b3f24fafc6c Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Tue, 20 Feb 2018 17:32:02 +0000
+Subject: [PATCH 227/454] overlays: Add sc16is752-i2c overlay
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ arch/arm/boot/dts/overlays/Makefile           |  1 +
+ arch/arm/boot/dts/overlays/README             | 15 +++++--
+ .../dts/overlays/sc16is752-i2c-overlay.dts    | 40 +++++++++++++++++++
+ 3 files changed, 53 insertions(+), 3 deletions(-)
+ create mode 100644 arch/arm/boot/dts/overlays/sc16is752-i2c-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -100,6 +100,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
+ 	rpi-tv.dtbo \
+ 	rra-digidac1-wm8741-audio.dtbo \
+ 	sc16is750-i2c.dtbo \
++	sc16is752-i2c.dtbo \
+ 	sc16is752-spi1.dtbo \
+ 	sdhost.dtbo \
+ 	sdio.dtbo \
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -1447,14 +1447,23 @@ Params: <None>
+ 
+ Name:   sc16is750-i2c
+ Info:   Overlay for the NXP SC16IS750 UART with I2C Interface
+-        Enables the chip on I2C1 at 0x48. To select another address,
+-        please refer to table 10 in reference manual.
+-
++        Enables the chip on I2C1 at 0x48 (or the "addr" parameter value). To
++        select another address, please refer to table 10 in reference manual.
+ Load:   dtoverlay=sc16is750-i2c,<param>=<val>
+ Params: int_pin                 GPIO used for IRQ (default 24)
+         addr                    Address (default 0x48)
+ 
+ 
++Name:   sc16is752-i2c
++Info:   Overlay for the NXP SC16IS752 dual UART with I2C Interface
++        Enables the chip on I2C1 at 0x48 (or the "addr" parameter value). To
++        select another address, please refer to table 10 in reference manual.
++Load:   dtoverlay=sc16is752-i2c,<param>=<val>
++Params: int_pin                 GPIO used for IRQ (default 24)
++        addr                    Address (default 0x48)
++        xtal                    On-board crystal frequency (default 14745600)
++
++
+ Name:   sc16is752-spi1
+ Info:   Overlay for the NXP SC16IS752 Dual UART with SPI Interface
+         Enables the chip on SPI1.
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/sc16is752-i2c-overlay.dts
+@@ -0,0 +1,40 @@
++/dts-v1/;
++/plugin/;
++
++/ {
++	compatible = "brcm,bcm2835";
++
++	fragment@0 {
++		target = <&i2c1>;
++
++		frag1: __overlay__ {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			status = "okay";
++
++			sc16is752: sc16is752@48 {
++				compatible = "nxp,sc16is752";
++				reg = <0x48>; // i2c address
++				clocks = <&sc16is752_clk>;
++				interrupt-parent = <&gpio>;
++				interrupts = <24 0x2>; /* IRQ_TYPE_EDGE_FALLING */
++				gpio-controller;
++				#gpio-cells = <0>;
++				i2c-max-frequency = <400000>;
++				status = "okay";
++
++				sc16is752_clk: sc16is752_clk {
++					compatible = "fixed-clock";
++					#clock-cells = <0>;
++					clock-frequency = <14745600>;
++				};
++			};
++		};
++	};
++
++	__overrides__ {
++		int_pin = <&sc16is752>,"interrupts:0";
++		addr = <&sc16is752>,"reg:0";
++		xtal = <&sc16is752>,"clock-frequency:0";
++	};
++};