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, 104 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.14/950-0277-overlays-Add-combine-option-to-i2c-overlays.patch b/target/linux/brcm2708/patches-4.14/950-0277-overlays-Add-combine-option-to-i2c-overlays.patch
new file mode 100644
index 0000000000..3981686cc8
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.14/950-0277-overlays-Add-combine-option-to-i2c-overlays.patch
@@ -0,0 +1,104 @@
+From 1b02fe3ab446613cadcfac08d611b90becb02189 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Wed, 18 Apr 2018 17:04:23 +0100
+Subject: [PATCH 277/454] overlays: Add 'combine' option to i2c overlays
+
+The i2c0-bcm2708 and i2c1-bcm2708 overlays allow the I2C pin usage to
+be changed. The names also suggest they revert to the old i2c_bcm2708
+driver, but they don't. The newer i2c_bcm2835 driver forces
+transactions to be combined where possible, but this breaks some
+devices.
+
+Add an option to disable transaction combining, which is currently
+implemented by reverting to the old driver.
+
+See: https://github.com/raspberrypi/firmware/issues/828
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ arch/arm/boot/dts/overlays/README                   | 12 ++++++++++--
+ arch/arm/boot/dts/overlays/i2c0-bcm2708-overlay.dts |  8 ++++++++
+ arch/arm/boot/dts/overlays/i2c1-bcm2708-overlay.dts |  9 +++++++++
+ 3 files changed, 27 insertions(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -865,8 +865,9 @@ Params: addr                    Set the
+ 
+ 
+ Name:   i2c0-bcm2708
+-Info:   Enable the i2c_bcm2708 driver for the i2c0 bus. Not all pin combinations
+-        are usable on all platforms.
++Info:   Change i2c0 pin usage. Not all pin combinations are usable on all
++        platforms - platforms other then Compute Modules can only use this
++        to disable transaction combining.
+ Load:   dtoverlay=i2c0-bcm2708,<param>=<val>
+ Params: sda0_pin                GPIO pin for SDA0 (deprecated - use pins_*)
+         scl0_pin                GPIO pin for SCL0 (deprecated - use pins_*)
+@@ -874,15 +875,22 @@ Params: sda0_pin                GPIO pin
+         pins_28_29              Use pins 28 and 29
+         pins_44_45              Use pins 44 and 45
+         pins_46_47              Use pins 46 and 47
++        combine                 Allow transactions to be combined (default
++                                "yes")
+ 
+ 
+ Name:   i2c1-bcm2708
++Info:   Change i2c1 pin usage. Not all pin combinations are usable on all
++        platforms - platforms other then Compute Modules can only use this
++        to disable transaction combining.
+ Info:   Enable the i2c_bcm2708 driver for the i2c1 bus
+ Load:   dtoverlay=i2c1-bcm2708,<param>=<val>
+ Params: sda1_pin                GPIO pin for SDA1 (2 or 44 - default 2)
+         scl1_pin                GPIO pin for SCL1 (3 or 45 - default 3)
+         pin_func                Alternative pin function (4 (alt0), 6 (alt2) -
+                                 default 4)
++        combine                 Allow transactions to be combined (default
++                                "yes")
+ 
+ 
+ Name:   i2s-gpio28-31
+--- a/arch/arm/boot/dts/overlays/i2c0-bcm2708-overlay.dts
++++ b/arch/arm/boot/dts/overlays/i2c0-bcm2708-overlay.dts
+@@ -50,6 +50,13 @@
+       };
+    };
+ 
++   fragment@5 {
++      target = <&i2c0>;
++      __dormant__ {
++         compatible = "brcm,bcm2708-i2c";
++      };
++   };
++
+    __overrides__ {
+       sda0_pin = <&frag1>,"brcm,pins:0";
+       scl0_pin = <&frag1>,"brcm,pins:4";
+@@ -57,5 +64,6 @@
+       pins_28_29 = <0>,"-1+2-3-4";
+       pins_44_45 = <0>,"-1-2+3-4";
+       pins_46_47 = <0>,"-1-2-3+4";
++      combine = <0>, "!5";
+    };
+ };
+--- a/arch/arm/boot/dts/overlays/i2c1-bcm2708-overlay.dts
++++ b/arch/arm/boot/dts/overlays/i2c1-bcm2708-overlay.dts
+@@ -26,9 +26,18 @@
+          brcm,function = <4>; /* alt 0 */
+       };
+    };
++
++   fragment@2 {
++      target = <&i2c1>;
++      __dormant__ {
++         compatible = "brcm,bcm2708-i2c";
++      };
++   };
++
+    __overrides__ {
+       sda1_pin = <&pins>,"brcm,pins:0";
+       scl1_pin = <&pins>,"brcm,pins:4";
+       pin_func = <&pins>,"brcm,function:0";
++      combine = <0>, "!2";
+    };
+ };