mvebu: backport mainline patches from kernel 3.13

This is a backport of the patches accepted to the Linux mainline related to
mvebu SoC (Armada XP and Armada 370) between Linux v3.12, and Linux v3.13.
This work mainly covers:

* Finishes work for sharing the pxa nand driver(drivers/mtd/nand/pxa3xx_nand.c)
  between the PXA family, and the Armada family.
* timer initialization update, and access function for the Armada family.
* Generic IRQ handling backporting.
* Some bug fixes.

Signed-off-by: Seif Mazareeb <seif.mazareeb@gmail.com>
CC: Luka Perkov <luka@openwrt.org>

SVN-Revision: 39566

1 files changed, 36 insertions, 0 deletions

diff --git a/target/linux/mvebu/patches-3.10/0170-clocksource-armada-370-xp-Get-reference-fixed-clock-.patch b/target/linux/mvebu/patches-3.10/0170-clocksource-armada-370-xp-Get-reference-fixed-clock-.patch
new file mode 100644
index 0000000000..e87f7fc7c5
--- /dev/null
+++ b/target/linux/mvebu/patches-3.10/0170-clocksource-armada-370-xp-Get-reference-fixed-clock-.patch
@@ -0,0 +1,36 @@
+From 7d7214129f7bde5bb55c0691968407b48f08efb5 Mon Sep 17 00:00:00 2001
+From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
+Date: Tue, 20 Aug 2013 12:45:53 -0300
+Subject: [PATCH 170/203] clocksource: armada-370-xp: Get reference fixed-clock
+ by name
+
+The Armada XP timer has two mandatory clock inputs: nbclk and refclk,
+as specified by the device-tree binding.
+
+This commit fixes the clock selection. Instead of hard-coding the clock
+rate for the 25 MHz reference fixed-clock, obtain the clock by its name.
+
+Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
+Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
+Acked-by: Jason Cooper <jason@lakedaemon.net>
+Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
+---
+ drivers/clocksource/time-armada-370-xp.c | 7 +++++--
+ 1 file changed, 5 insertions(+), 2 deletions(-)
+
+--- a/drivers/clocksource/time-armada-370-xp.c
++++ b/drivers/clocksource/time-armada-370-xp.c
+@@ -294,8 +294,11 @@ static void __init armada_370_xp_timer_c
+ 
+ static void __init armada_xp_timer_init(struct device_node *np)
+ {
+-	/* The fixed 25MHz timer is required, timer25Mhz is true by default */
+-	timer_clk = 25000000;
++	struct clk *clk = of_clk_get_by_name(np, "fixed");
++
++	/* The 25Mhz fixed clock is mandatory, and must always be available */
++	BUG_ON(IS_ERR(clk));
++	timer_clk = clk_get_rate(clk);
+ 
+ 	armada_370_xp_timer_common_init(np);
+ }