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, 88 insertions, 0 deletions

diff --git a/target/linux/layerscape/patches-4.4/7195-increment-MC_CMD_COMPLETION_TIMEOUT_MS.patch b/target/linux/layerscape/patches-4.4/7195-increment-MC_CMD_COMPLETION_TIMEOUT_MS.patch
new file mode 100644
index 0000000000..438234b148
--- /dev/null
+++ b/target/linux/layerscape/patches-4.4/7195-increment-MC_CMD_COMPLETION_TIMEOUT_MS.patch
@@ -0,0 +1,88 @@
+From 71d19cd1107fa435d056e08e7d7ef7d8f714cf35 Mon Sep 17 00:00:00 2001
+From: Lijun Pan <Lijun.Pan@freescale.com>
+Date: Fri, 31 Jul 2015 15:07:32 -0500
+Subject: [PATCH 195/226] increment MC_CMD_COMPLETION_TIMEOUT_MS
+
+5000ms is barely enough for dpsw/dpdmux creation.
+If MC firmware could run faster, we would decrement the value later on.
+
+Signed-off-by: Lijun Pan <Lijun.Pan@freescale.com>
+(Stuart: resolved merge conflict)
+Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
+---
+ drivers/staging/fsl-mc/bus/mc-sys.c |   38 +++++++++++++++--------------------
+ 1 file changed, 16 insertions(+), 22 deletions(-)
+
+--- a/drivers/staging/fsl-mc/bus/mc-sys.c
++++ b/drivers/staging/fsl-mc/bus/mc-sys.c
+@@ -43,8 +43,10 @@
+ 
+ /**
+  * Timeout in milliseconds to wait for the completion of an MC command
++ * 5000 ms is barely enough for dpsw/dpdmux creation
++ * TODO: if MC firmware could response faster, we should decrease this value
+  */
+-#define MC_CMD_COMPLETION_TIMEOUT_MS	500
++#define MC_CMD_COMPLETION_TIMEOUT_MS	5000
+ 
+ /*
+  * usleep_range() min and max values used to throttle down polling
+@@ -327,17 +329,8 @@ static int mc_polling_wait_preemptible(s
+ 		usleep_range(MC_CMD_COMPLETION_POLLING_MIN_SLEEP_USECS,
+ 			     MC_CMD_COMPLETION_POLLING_MAX_SLEEP_USECS);
+ 
+-		if (time_after_eq(jiffies, jiffies_until_timeout)) {
+-			dev_dbg(mc_io->dev,
+-				"MC command timed out (portal: %#llx, obj handle: %#x, command: %#x)\n",
+-				 mc_io->portal_phys_addr,
+-				 (unsigned int)
+-					MC_CMD_HDR_READ_TOKEN(cmd->header),
+-				 (unsigned int)
+-					MC_CMD_HDR_READ_CMDID(cmd->header));
+-
++		if (time_after_eq(jiffies, jiffies_until_timeout))
+ 			return -ETIMEDOUT;
+-		}
+ 	}
+ 
+ 	*mc_status = status;
+@@ -369,17 +362,8 @@ static int mc_polling_wait_atomic(struct
+ 
+ 		udelay(MC_CMD_COMPLETION_POLLING_MAX_SLEEP_USECS);
+ 		timeout_usecs -= MC_CMD_COMPLETION_POLLING_MAX_SLEEP_USECS;
+-		if (timeout_usecs == 0) {
+-			dev_dbg(mc_io->dev,
+-				"MC command timed out (portal: %#llx, obj handle: %#x, command: %#x)\n",
+-				 mc_io->portal_phys_addr,
+-				 (unsigned int)
+-					MC_CMD_HDR_READ_TOKEN(cmd->header),
+-				 (unsigned int)
+-					MC_CMD_HDR_READ_CMDID(cmd->header));
+-
++		if (timeout_usecs == 0)
+ 			return -ETIMEDOUT;
+-		}
+ 	}
+ 
+ 	*mc_status = status;
+@@ -422,9 +406,19 @@ int mc_send_command(struct fsl_mc_io *mc
+ 	else
+ 		error = mc_polling_wait_atomic(mc_io, cmd, &status);
+ 
+-	if (error < 0)
++	if (error < 0) {
++		if (error == -ETIMEDOUT) {
++			pr_debug("MC command timed out (portal: %#llx, obj handle: %#x, command: %#x)\n",
++				 mc_io->portal_phys_addr,
++				 (unsigned int)
++					MC_CMD_HDR_READ_TOKEN(cmd->header),
++				 (unsigned int)
++					MC_CMD_HDR_READ_CMDID(cmd->header));
++		}
+ 		goto common_exit;
+ 
++	}
++
+ 	if (status != MC_CMD_STATUS_OK) {
+ 		dev_dbg(mc_io->dev,
+ 			"MC command failed: portal: %#llx, obj handle: %#x, command: %#x, status: %s (%#x)\n",