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, 111 insertions, 0 deletions

diff --git a/target/linux/layerscape/patches-5.4/701-net-0362-sdk_dpaa-ceetm-remove-references-to-qdisc_lookup.patch b/target/linux/layerscape/patches-5.4/701-net-0362-sdk_dpaa-ceetm-remove-references-to-qdisc_lookup.patch
new file mode 100644
index 0000000000..652ab89dd8
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0362-sdk_dpaa-ceetm-remove-references-to-qdisc_lookup.patch
@@ -0,0 +1,111 @@
+From d6fc3dc5591ca4f0b2a5a77b210c622d8b709362 Mon Sep 17 00:00:00 2001
+From: Camelia Groza <camelia.groza@nxp.com>
+Date: Fri, 20 Dec 2019 15:56:53 +0200
+Subject: [PATCH] sdk_dpaa: ceetm: remove references to qdisc_lookup
+
+In order to enable building the driver as a module, remove the
+references to the undefined qdisc_lookup symbol.
+
+Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
+---
+ .../ethernet/freescale/sdk_dpaa/dpaa_eth_ceetm.c   | 49 ++++++++++++++++------
+ 1 file changed, 36 insertions(+), 13 deletions(-)
+
+--- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_ceetm.c
++++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_ceetm.c
+@@ -812,8 +812,8 @@ static int ceetm_init_prio(struct Qdisc
+ 	int err;
+ 	unsigned int i;
+ 	struct ceetm_class *parent_cl, *child_cl;
+-	struct Qdisc *parent_qdisc;
+ 	struct net_device *dev = qdisc_dev(sch);
++	struct Qdisc *root_qdisc = dev->qdisc;
+ 
+ 	pr_debug(KBUILD_BASENAME " : %s : qdisc %X\n", __func__, sch->handle);
+ 
+@@ -822,14 +822,18 @@ static int ceetm_init_prio(struct Qdisc
+ 		return -EINVAL;
+ 	}
+ 
+-	parent_qdisc = qdisc_lookup(dev, TC_H_MAJ(sch->parent));
+-	if (strcmp(parent_qdisc->ops->id, ceetm_qdisc_ops.id)) {
++	if (TC_H_MAJ(sch->parent) != TC_H_MAJ(root_qdisc->handle)) {
++		pr_err("CEETM: a prio ceetm qdiscs can be added only under a root ceetm class\n");
++		return -EINVAL;
++	}
++
++	if (strcmp(root_qdisc->ops->id, ceetm_qdisc_ops.id)) {
+ 		pr_err("CEETM: a ceetm qdisc can not be attached to other qdisc/class types\n");
+ 		return -EINVAL;
+ 	}
+ 
+ 	/* Obtain the parent root ceetm_class */
+-	parent_cl = ceetm_find(sch->parent, parent_qdisc);
++	parent_cl = ceetm_find(sch->parent, root_qdisc);
+ 
+ 	if (!parent_cl || parent_cl->type != CEETM_ROOT) {
+ 		pr_err("CEETM: a prio ceetm qdiscs can be added only under a root ceetm class\n");
+@@ -902,9 +906,9 @@ static int ceetm_init_wbfs(struct Qdisc
+ {
+ 	int err, group_b, small_group;
+ 	unsigned int i, id, prio_a, prio_b;
+-	struct ceetm_class *parent_cl, *child_cl, *root_cl;
+-	struct Qdisc *parent_qdisc;
+-	struct ceetm_qdisc *parent_priv;
++	struct ceetm_class *parent_cl, *child_cl, *tmp_cl, *root_cl = NULL;
++	struct Qdisc *root_qdisc, *parent_qdisc = NULL;
++	struct ceetm_qdisc *root_priv;
+ 	struct net_device *dev = qdisc_dev(sch);
+ 
+ 	pr_debug(KBUILD_BASENAME " : %s : qdisc %X\n", __func__, sch->handle);
+@@ -915,16 +919,37 @@ static int ceetm_init_wbfs(struct Qdisc
+ 		return -EINVAL;
+ 	}
+ 
+-	/* Obtain the parent prio ceetm qdisc */
+-	parent_qdisc = qdisc_lookup(dev, TC_H_MAJ(sch->parent));
+-	if (strcmp(parent_qdisc->ops->id, ceetm_qdisc_ops.id)) {
++	root_qdisc = dev->qdisc;
++
++	if (strcmp(root_qdisc->ops->id, ceetm_qdisc_ops.id)) {
+ 		pr_err("CEETM: a ceetm qdisc can not be attached to other qdisc/class types\n");
+ 		return -EINVAL;
+ 	}
+ 
++	root_priv = qdisc_priv(root_qdisc);
++
++	/* Obtain the root ceetm class and the parent prio ceetm qdisc */
++	for (i = 0; i < root_priv->clhash.hashsize; i++) {
++		hlist_for_each_entry(tmp_cl, &root_priv->clhash.hash[i],
++				     common.hnode) {
++			if (tmp_cl->root.child &&
++			    (TC_H_MAJ(tmp_cl->root.child->handle) ==
++			    TC_H_MAJ(sch->parent))) {
++				parent_qdisc = tmp_cl->root.child;
++				root_cl = tmp_cl;
++				break;
++			}
++		}
++	}
++
++	if (!parent_qdisc ||
++	    strcmp(parent_qdisc->ops->id, ceetm_qdisc_ops.id)) {
++		pr_err("CEETM: a wbfs ceetm qdiscs can be added only under a prio ceetm class\n");
++		return -EINVAL;
++	}
++
+ 	/* Obtain the parent prio ceetm class */
+ 	parent_cl = ceetm_find(sch->parent, parent_qdisc);
+-	parent_priv = qdisc_priv(parent_qdisc);
+ 
+ 	if (!parent_cl || parent_cl->type != CEETM_PRIO) {
+ 		pr_err("CEETM: a wbfs ceetm qdiscs can be added only under a prio ceetm class\n");
+@@ -948,8 +973,6 @@ static int ceetm_init_wbfs(struct Qdisc
+ 		return -EINVAL;
+ 	}
+ 
+-	/* Obtain the parent root ceetm class */
+-	root_cl = parent_priv->prio.parent;
+ 	if ((root_cl->root.wbfs_grp_a && root_cl->root.wbfs_grp_b) ||
+ 	    root_cl->root.wbfs_grp_large) {
+ 		pr_err("CEETM: no more wbfs classes are available\n");