layerscape: add patches-5.4

Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release
which was tagged LSDK-20.04-V5.4.
https://source.codeaurora.org/external/qoriq/qoriq-components/linux/

For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in
LSDK, port the dts patches from 4.14.

The patches are sorted into the following categories:
  301-arch-xxxx
  302-dts-xxxx
  303-core-xxxx
  701-net-xxxx
  801-audio-xxxx
  802-can-xxxx
  803-clock-xxxx
  804-crypto-xxxx
  805-display-xxxx
  806-dma-xxxx
  807-gpio-xxxx
  808-i2c-xxxx
  809-jailhouse-xxxx
  810-keys-xxxx
  811-kvm-xxxx
  812-pcie-xxxx
  813-pm-xxxx
  814-qe-xxxx
  815-sata-xxxx
  816-sdhc-xxxx
  817-spi-xxxx
  818-thermal-xxxx
  819-uart-xxxx
  820-usb-xxxx
  821-vfio-xxxx

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>

1 files changed, 54 insertions, 0 deletions

diff --git a/target/linux/layerscape/patches-5.4/701-net-0004-soc-fsl-qman-portal-map-CENA-area-in-the-iommu.patch b/target/linux/layerscape/patches-5.4/701-net-0004-soc-fsl-qman-portal-map-CENA-area-in-the-iommu.patch
new file mode 100644
index 0000000000..b29964204d
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0004-soc-fsl-qman-portal-map-CENA-area-in-the-iommu.patch
@@ -0,0 +1,54 @@
+From 488b62aa444440690708e5ea823bb0d54c296c4f Mon Sep 17 00:00:00 2001
+From: Laurentiu Tudor <laurentiu.tudor@nxp.com>
+Date: Tue, 3 Apr 2018 18:18:30 +0300
+Subject: [PATCH] soc/fsl/qman-portal: map CENA area in the iommu
+
+Add a one-to-one iommu mapping for qman portal CENA register area.
+This is required for QMAN stashing to work without faults behind
+an iommu.
+
+Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
+---
+ drivers/soc/fsl/qbman/qman_portal.c | 17 +++++++++++++++++
+ 1 file changed, 17 insertions(+)
+
+--- a/drivers/soc/fsl/qbman/qman_portal.c
++++ b/drivers/soc/fsl/qbman/qman_portal.c
+@@ -29,6 +29,7 @@
+  */
+ 
+ #include "qman_priv.h"
++#include <linux/iommu.h>
+ 
+ struct qman_portal *qman_dma_portal;
+ EXPORT_SYMBOL(qman_dma_portal);
+@@ -231,6 +232,7 @@ static int qman_portal_probe(struct plat
+ {
+ 	struct device *dev = &pdev->dev;
+ 	struct device_node *node = dev->of_node;
++	struct iommu_domain *domain;
+ 	struct qm_portal_config *pcfg;
+ 	struct resource *addr_phys[2];
+ 	int irq, cpu, err, i;
+@@ -294,6 +296,21 @@ static int qman_portal_probe(struct plat
+ 		goto err_ioremap2;
+ 	}
+ 
++	/* Create an 1-to-1 iommu mapping for cena portal area */
++	domain = iommu_get_domain_for_dev(dev);
++	if (domain) {
++		/*
++		 * Note: not mapping this as cacheable triggers the infamous
++		 * QMan CIDE error.
++		 */
++		err = iommu_map(domain,
++				addr_phys[0]->start, addr_phys[0]->start,
++				resource_size(addr_phys[0]),
++				IOMMU_READ | IOMMU_WRITE | IOMMU_CACHE);
++		if (err)
++			dev_warn(dev, "failed to iommu_map() %d\n", err);
++	}
++
+ 	pcfg->pools = qm_get_pools_sdqcr();
+ 
+ 	spin_lock(&qman_lock);