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, 99 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.14/950-0009-irqchip-irq-bcm2835-Add-2836-FIQ-support.patch b/target/linux/brcm2708/patches-4.14/950-0009-irqchip-irq-bcm2835-Add-2836-FIQ-support.patch
new file mode 100644
index 0000000000..87fd157b41
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.14/950-0009-irqchip-irq-bcm2835-Add-2836-FIQ-support.patch
@@ -0,0 +1,99 @@
+From 1d8af4d16ff95154c134b060900aefac133c50b6 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
+Date: Fri, 23 Oct 2015 16:26:55 +0200
+Subject: [PATCH 009/454] irqchip: irq-bcm2835: Add 2836 FIQ support
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
+---
+ drivers/irqchip/irq-bcm2835.c | 43 +++++++++++++++++++++++++++++++++--
+ 1 file changed, 41 insertions(+), 2 deletions(-)
+
+--- a/drivers/irqchip/irq-bcm2835.c
++++ b/drivers/irqchip/irq-bcm2835.c
+@@ -50,8 +50,11 @@
+ #include <linux/of_irq.h>
+ #include <linux/irqchip.h>
+ #include <linux/irqdomain.h>
++#include <linux/mfd/syscon.h>
++#include <linux/regmap.h>
+ 
+ #include <asm/exception.h>
++#include <asm/mach/irq.h>
+ 
+ /* Put the bank and irq (32 bits) into the hwirq */
+ #define MAKE_HWIRQ(b, n)	(((b) << 5) | (n))
+@@ -69,6 +72,9 @@
+ #define BANK0_VALID_MASK	(BANK0_HWIRQ_MASK | BANK1_HWIRQ | BANK2_HWIRQ \
+ 					| SHORTCUT1_MASK | SHORTCUT2_MASK)
+ 
++#undef ARM_LOCAL_GPU_INT_ROUTING
++#define ARM_LOCAL_GPU_INT_ROUTING 0x0c
++
+ #define REG_FIQ_CONTROL		0x0c
+ #define REG_FIQ_ENABLE		0x80
+ #define REG_FIQ_DISABLE		0
+@@ -94,6 +100,7 @@ struct armctrl_ic {
+ 	void __iomem *enable[NR_BANKS];
+ 	void __iomem *disable[NR_BANKS];
+ 	struct irq_domain *domain;
++	struct regmap *local_regmap;
+ };
+ 
+ static struct armctrl_ic intc __read_mostly;
+@@ -127,12 +134,35 @@ static void armctrl_mask_irq(struct irq_
+ 
+ static void armctrl_unmask_irq(struct irq_data *d)
+ {
+-	if (d->hwirq >= NUMBER_IRQS)
++	if (d->hwirq >= NUMBER_IRQS) {
++		if (num_online_cpus() > 1) {
++			unsigned int data;
++			int ret;
++
++			if (!intc.local_regmap) {
++				pr_err("FIQ is disabled due to missing regmap\n");
++				return;
++			}
++
++			ret = regmap_read(intc.local_regmap,
++					  ARM_LOCAL_GPU_INT_ROUTING, &data);
++			if (ret) {
++				pr_err("Failed to read int routing %d\n", ret);
++				return;
++			}
++
++			data &= ~0xc;
++			data |= (1 << 2);
++			regmap_write(intc.local_regmap,
++				     ARM_LOCAL_GPU_INT_ROUTING, data);
++		}
++
+ 		writel_relaxed(REG_FIQ_ENABLE | hwirq_to_fiq(d->hwirq),
+ 			       intc.base + REG_FIQ_CONTROL);
+-	else
++	} else {
+ 		writel_relaxed(HWIRQ_BIT(d->hwirq),
+ 			       intc.enable[HWIRQ_BANK(d->hwirq)]);
++	}
+ }
+ 
+ static struct irq_chip armctrl_chip = {
+@@ -209,6 +239,15 @@ static int __init armctrl_of_init(struct
+ 		set_handle_irq(bcm2835_handle_irq);
+ 	}
+ 
++	if (is_2836) {
++		intc.local_regmap =
++			syscon_regmap_lookup_by_compatible("brcm,bcm2836-arm-local");
++		if (IS_ERR(intc.local_regmap)) {
++			pr_err("Failed to get local register map. FIQ is disabled for cpus > 1\n");
++			intc.local_regmap = NULL;
++		}
++	}
++
+ 	/* Make a duplicate irq range which is used to enable FIQ */
+ 	for (b = 0; b < NR_BANKS; b++) {
+ 		for (i = 0; i < bank_irqs[b]; i++) {