ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
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 0000000..889aecc
--- /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(®, 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(®, 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);