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, 66 insertions, 0 deletions

diff --git a/target/linux/mvebu/patches-3.10/0106-mtd-nand-pxa3xx-Move-buffer-release-code-to-its-own-.patch b/target/linux/mvebu/patches-3.10/0106-mtd-nand-pxa3xx-Move-buffer-release-code-to-its-own-.patch
new file mode 100644
index 0000000000..b199fcf833
--- /dev/null
+++ b/target/linux/mvebu/patches-3.10/0106-mtd-nand-pxa3xx-Move-buffer-release-code-to-its-own-.patch
@@ -0,0 +1,66 @@
+From 49ff5bd7d4d51a8eb05796f130e9a1a96d18f522 Mon Sep 17 00:00:00 2001
+From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
+Date: Wed, 17 Apr 2013 13:38:14 -0300
+Subject: [PATCH 106/203] mtd: nand: pxa3xx: Move buffer release code to its
+ own function
+
+Create a function to release the buffer and the dma channel, thus undoing
+what pxa3xx_nand_init_buff() did. This commit makes the code more readable
+and will allow to handle non-DMA capable platforms easier.
+
+Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
+Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
+Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
+---
+ drivers/mtd/nand/pxa3xx_nand.c | 26 ++++++++++++++------------
+ 1 file changed, 14 insertions(+), 12 deletions(-)
+
+--- a/drivers/mtd/nand/pxa3xx_nand.c
++++ b/drivers/mtd/nand/pxa3xx_nand.c
+@@ -912,6 +912,18 @@ static int pxa3xx_nand_init_buff(struct
+ 	return 0;
+ }
+ 
++static void pxa3xx_nand_free_buff(struct pxa3xx_nand_info *info)
++{
++	struct platform_device *pdev = info->pdev;
++	if (use_dma) {
++		pxa_free_dma(info->data_dma_ch);
++		dma_free_coherent(&pdev->dev, MAX_BUFF_SIZE,
++				  info->data_buff, info->data_buff_phys);
++	} else {
++		kfree(info->data_buff);
++	}
++}
++
+ static int pxa3xx_nand_sensing(struct pxa3xx_nand_info *info)
+ {
+ 	struct mtd_info *mtd;
+@@ -1137,12 +1149,7 @@ static int alloc_nand_resource(struct pl
+ 
+ fail_free_buf:
+ 	free_irq(irq, info);
+-	if (use_dma) {
+-		pxa_free_dma(info->data_dma_ch);
+-		dma_free_coherent(&pdev->dev, MAX_BUFF_SIZE,
+-			info->data_buff, info->data_buff_phys);
+-	} else
+-		kfree(info->data_buff);
++	pxa3xx_nand_free_buff(info);
+ fail_disable_clk:
+ 	clk_disable_unprepare(info->clk);
+ 	return ret;
+@@ -1163,12 +1170,7 @@ static int pxa3xx_nand_remove(struct pla
+ 	irq = platform_get_irq(pdev, 0);
+ 	if (irq >= 0)
+ 		free_irq(irq, info);
+-	if (use_dma) {
+-		pxa_free_dma(info->data_dma_ch);
+-		dma_free_writecombine(&pdev->dev, MAX_BUFF_SIZE,
+-				info->data_buff, info->data_buff_phys);
+-	} else
+-		kfree(info->data_buff);
++	pxa3xx_nand_free_buff(info);
+ 
+ 	clk_disable_unprepare(info->clk);
+