brcm2708: add linux 4.4 support

- random-bcm2708 and spi-bcm2708 have been removed.
- sound-soc-bcm2708-i2s has been upstreamed as sound-soc-bcm2835-i2s.

Let's keep linux 4.1 for a while, since linux 4.4 appears to have some issues
with multicast traffic on RPi ethernet:
https://gist.github.com/Noltari/5b1cfdecce5ed4bc08fd

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

SVN-Revision: 48266

1 files changed, 28 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.4/0087-irq-bcm2835-Fix-building-with-2708.patch b/target/linux/brcm2708/patches-4.4/0087-irq-bcm2835-Fix-building-with-2708.patch
new file mode 100644
index 0000000000..523dca0c4a
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.4/0087-irq-bcm2835-Fix-building-with-2708.patch
@@ -0,0 +1,28 @@
+From d4df36c7243c7fcf016278309a7fcf1e07bf8b7f Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Mon, 28 Sep 2015 23:38:59 +0100
+Subject: [PATCH 087/127] irq-bcm2835: Fix building with 2708
+
+---
+ drivers/irqchip/irq-bcm2835.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/irqchip/irq-bcm2835.c
++++ b/drivers/irqchip/irq-bcm2835.c
+@@ -82,6 +82,7 @@
+ #define NR_BANKS		3
+ #define IRQS_PER_BANK		32
+ #define NUMBER_IRQS		MAKE_HWIRQ(NR_BANKS, 0)
++#undef FIQ_START
+ #define FIQ_START		(NR_IRQS_BANK0 + MAKE_HWIRQ(NR_BANKS - 1, 0))
+ 
+ static const int reg_pending[] __initconst = { 0x00, 0x04, 0x08 };
+@@ -256,7 +257,7 @@ static int __init armctrl_of_init(struct
+ 					MAKE_HWIRQ(b, i) + NUMBER_IRQS);
+ 			BUG_ON(irq <= 0);
+ 			irq_set_chip(irq, &armctrl_chip);
+-			set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
++			irq_set_probe(irq);
+ 		}
+ 	}
+ 	init_FIQ(FIQ_START);