layerscape: add ls1088ardb device support

LS1088A is an ARMv8 implementation combining eight ARM A53 processor
cores. The LS1088ARDB is an evaluatoin platform that supports the
LS1088A family SoCs.

Features summary:
- Eight 64-bit ARM v8 Cortex-A53 CPUs
- Data path acceleration architecture 2.0 (DPAA2)
- Ethernet interfaces
- QUADSPI flash, 3 PCIe, 2 USB, 1 SD, 2 DUARTs etc

Signed-off-by: Yutang Jiang <yutang.jiang@nxp.com>

1 files changed, 72 insertions, 0 deletions

diff --git a/target/linux/layerscape/patches-4.4/7151-staging-fsl-mc-Fixed-bug-in-dprc_probe-error-path.patch b/target/linux/layerscape/patches-4.4/7151-staging-fsl-mc-Fixed-bug-in-dprc_probe-error-path.patch
new file mode 100644
index 0000000000..3324048a06
--- /dev/null
+++ b/target/linux/layerscape/patches-4.4/7151-staging-fsl-mc-Fixed-bug-in-dprc_probe-error-path.patch
@@ -0,0 +1,72 @@
+From 22aa842ae501ea8724afd45fcb0d7b17a67cb950 Mon Sep 17 00:00:00 2001
+From: "J. German Rivera" <German.Rivera@freescale.com>
+Date: Wed, 6 Jan 2016 16:03:27 -0600
+Subject: [PATCH 151/226] staging: fsl-mc: Fixed bug in dprc_probe() error
+ path
+
+Destroy mc_io in error path in dprc_probe() only if the mc_io was
+created in this function.
+
+Signed-off-by: J. German Rivera <German.Rivera@freescale.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/staging/fsl-mc/bus/dprc-driver.c |   17 ++++++++++++++---
+ 1 file changed, 14 insertions(+), 3 deletions(-)
+
+--- a/drivers/staging/fsl-mc/bus/dprc-driver.c
++++ b/drivers/staging/fsl-mc/bus/dprc-driver.c
+@@ -401,6 +401,7 @@ static int dprc_probe(struct fsl_mc_devi
+ 	size_t region_size;
+ 	struct device *parent_dev = mc_dev->dev.parent;
+ 	struct fsl_mc_bus *mc_bus = to_fsl_mc_bus(mc_dev);
++	bool mc_io_created = false;
+ 	bool msi_domain_set = false;
+ 
+ 	if (WARN_ON(strcmp(mc_dev->obj_desc.type, "dprc") != 0))
+@@ -413,6 +414,9 @@ static int dprc_probe(struct fsl_mc_devi
+ 		/*
+ 		 * This is a child DPRC:
+ 		 */
++		if (WARN_ON(parent_dev->bus != &fsl_mc_bus_type))
++			return -EINVAL;
++
+ 		if (WARN_ON(mc_dev->obj_desc.region_count == 0))
+ 			return -EINVAL;
+ 
+@@ -427,6 +431,9 @@ static int dprc_probe(struct fsl_mc_devi
+ 					 &mc_dev->mc_io);
+ 		if (error < 0)
+ 			return error;
++
++		mc_io_created = true;
++
+ 		/*
+ 		 * Inherit parent MSI domain:
+ 		 */
+@@ -457,7 +464,7 @@ static int dprc_probe(struct fsl_mc_devi
+ 			  &mc_dev->mc_handle);
+ 	if (error < 0) {
+ 		dev_err(&mc_dev->dev, "dprc_open() failed: %d\n", error);
+-		goto error_cleanup_mc_io;
++		goto error_cleanup_msi_domain;
+ 	}
+ 
+ 	mutex_init(&mc_bus->scan_mutex);
+@@ -475,11 +482,15 @@ static int dprc_probe(struct fsl_mc_devi
+ error_cleanup_open:
+ 	(void)dprc_close(mc_dev->mc_io, 0, mc_dev->mc_handle);
+ 
+-error_cleanup_mc_io:
++error_cleanup_msi_domain:
+ 	if (msi_domain_set)
+ 		dev_set_msi_domain(&mc_dev->dev, NULL);
+ 
+-	fsl_destroy_mc_io(mc_dev->mc_io);
++	if (mc_io_created) {
++		fsl_destroy_mc_io(mc_dev->mc_io);
++		mc_dev->mc_io = NULL;
++	}
++
+ 	return error;
+ }
+