mvebu: backport mainline patches from kernel 3.12

This is a backport of the patches accepted to the Linux mainline related to
mvebu SoC (Armada XP and Armada 370) between Linux v3.11, and Linux v3.12.
This work mainly covers:

* Ground work for sharing the pxa nand driver(drivers/mtd/nand/pxa3xx_nand.c)
  between the PXA family,and the Armada family.
* Further updates to the mvebu MBus.
* Work and ground work for enabling MSI on the Armada family.
* some phy / mdio bus initialization related work.
* Device tree binding documentation update.

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

SVN-Revision: 39565

1 files changed, 64 insertions, 0 deletions

diff --git a/target/linux/mvebu/patches-3.10/0074-irqchip-armada-370-xp-properly-request-resources.patch b/target/linux/mvebu/patches-3.10/0074-irqchip-armada-370-xp-properly-request-resources.patch
new file mode 100644
index 0000000000..1cb99118c9
--- /dev/null
+++ b/target/linux/mvebu/patches-3.10/0074-irqchip-armada-370-xp-properly-request-resources.patch
@@ -0,0 +1,64 @@
+From c8efa45217cbd780dafe12d87b61554c2e19a010 Mon Sep 17 00:00:00 2001
+From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+Date: Thu, 6 Jun 2013 18:22:51 +0200
+Subject: [PATCH 074/203] irqchip: armada-370-xp: properly request resources
+
+Instead of using of_iomap(), we now use of_address_to_resource(),
+request_mem_region() and ioremap(). This allows the corresponding I/O
+regions to be properly requested and visible in /proc/iomem.
+
+The main motivation for this change is that the introduction of the
+MSI support requires us to get the physical address of the main
+interrupt controller registers, so we will need the corresponding
+'struct resource' anyway.
+
+We also take this opportunity to change a panic() to BUG_ON(), in
+order to be consistent with the rest of the driver.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+Tested-by: Daniel Price <daniel.price@gmail.com>
+Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
+---
+ drivers/irqchip/irq-armada-370-xp.c | 20 ++++++++++++++++----
+ 1 file changed, 16 insertions(+), 4 deletions(-)
+
+--- a/drivers/irqchip/irq-armada-370-xp.c
++++ b/drivers/irqchip/irq-armada-370-xp.c
+@@ -248,12 +248,25 @@ armada_370_xp_handle_irq(struct pt_regs
+ static int __init armada_370_xp_mpic_of_init(struct device_node *node,
+ 					     struct device_node *parent)
+ {
++	struct resource main_int_res, per_cpu_int_res;
+ 	u32 control;
+ 
+-	main_int_base = of_iomap(node, 0);
+-	per_cpu_int_base = of_iomap(node, 1);
++	BUG_ON(of_address_to_resource(node, 0, &main_int_res));
++	BUG_ON(of_address_to_resource(node, 1, &per_cpu_int_res));
+ 
++	BUG_ON(!request_mem_region(main_int_res.start,
++				   resource_size(&main_int_res),
++				   node->full_name));
++	BUG_ON(!request_mem_region(per_cpu_int_res.start,
++				   resource_size(&per_cpu_int_res),
++				   node->full_name));
++
++	main_int_base = ioremap(main_int_res.start,
++				resource_size(&main_int_res));
+ 	BUG_ON(!main_int_base);
++
++	per_cpu_int_base = ioremap(per_cpu_int_res.start,
++				   resource_size(&per_cpu_int_res));
+ 	BUG_ON(!per_cpu_int_base);
+ 
+ 	control = readl(main_int_base + ARMADA_370_XP_INT_CONTROL);
+@@ -262,8 +275,7 @@ static int __init armada_370_xp_mpic_of_
+ 		irq_domain_add_linear(node, (control >> 2) & 0x3ff,
+ 				&armada_370_xp_mpic_irq_ops, NULL);
+ 
+-	if (!armada_370_xp_mpic_domain)
+-		panic("Unable to add Armada_370_Xp MPIC irq domain (DT)\n");
++	BUG_ON(!armada_370_xp_mpic_domain);
+ 
+ 	irq_set_default_host(armada_370_xp_mpic_domain);
+