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, 69 insertions, 0 deletions

diff --git a/target/linux/layerscape/patches-5.4/701-net-0406-sdk_qbman-Only-create-debugfs-entries-when-QBMan-is-.patch b/target/linux/layerscape/patches-5.4/701-net-0406-sdk_qbman-Only-create-debugfs-entries-when-QBMan-is-.patch
new file mode 100644
index 0000000000..889aecc383
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0406-sdk_qbman-Only-create-debugfs-entries-when-QBMan-is-.patch
@@ -0,0 +1,69 @@
+From f34c01773d5dbd2db04200079bb4d32ecb0cd847 Mon Sep 17 00:00:00 2001
+From: Roy Pledge <roy.pledge@nxp.com>
+Date: Tue, 18 Feb 2020 14:02:21 -0500
+Subject: [PATCH] sdk_qbman: Only create debugfs entries when QBMan is part of
+ device tree
+
+Only create debugfs entries if the QBMan nodes exist in the device
+tree.
+
+Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
+Acked-by: Madalin Bucur <madalin.bucur@nxp.com>
+Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
+---
+ drivers/staging/fsl_qbman/bman_debugfs.c |  8 +++++++-
+ drivers/staging/fsl_qbman/qman_debugfs.c | 17 ++++++++++-------
+ 2 files changed, 17 insertions(+), 8 deletions(-)
+
+--- a/drivers/staging/fsl_qbman/bman_debugfs.c
++++ b/drivers/staging/fsl_qbman/bman_debugfs.c
+@@ -33,6 +33,7 @@
+ #include <linux/debugfs.h>
+ #include <linux/seq_file.h>
+ #include <linux/uaccess.h>
++#include <linux/of.h>
+ 
+ static struct dentry *dfs_root; /* debugfs root directory */
+ 
+@@ -83,9 +84,14 @@ static int __init bman_debugfs_module_in
+ {
+ 	int ret = 0;
+ 	struct dentry *d;
++	struct device_node *dn;
+ 
++	dn = of_find_compatible_node(NULL, NULL, "fsl,bman");
++	if (!dn) {
++		pr_debug("No fsl,bman node\n");
++		return 0;
++	}
+ 	dfs_root = debugfs_create_dir("bman", NULL);
+-
+ 	if (dfs_root == NULL) {
+ 		ret = -ENOMEM;
+ 		pr_err("Cannot create bman debugfs dir\n");
+--- a/drivers/staging/fsl_qbman/qman_debugfs.c
++++ b/drivers/staging/fsl_qbman/qman_debugfs.c
+@@ -1457,13 +1457,16 @@ static int __init qman_debugfs_module_in
+ 
+ 	fqid_max = 0;
+ 	init_ccsrmempeek();
+-	if (qman_ccsr_start) {
+-		if (!qman_ccsrmempeek(&reg, QM_FQD_AR)) {
+-			/* extract the size of the FQD window */
+-			reg = reg & 0x3f;
+-			/* calculate valid frame queue descriptor range */
+-			fqid_max = (1 << (reg + 1)) / QM_FQD_BLOCK_SIZE;
+-		}
++	if (!qman_ccsr_start) {
++		/* No QMan node found in device tree */
++		return 0;
++	}
++
++	if (!qman_ccsrmempeek(&reg, QM_FQD_AR)) {
++		/* extract the size of the FQD window */
++		reg = reg & 0x3f;
++		/* calculate valid frame queue descriptor range */
++		fqid_max = (1 << (reg + 1)) / QM_FQD_BLOCK_SIZE;
+ 	}
+ 	dfs_root = debugfs_create_dir("qman", NULL);
+ 	fqd_root = debugfs_create_dir("fqd", dfs_root);