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-0070-sdk_dpaa-ceetm-WQ-CEETM-mode-switchover-cleanup.patch b/target/linux/layerscape/patches-5.4/701-net-0070-sdk_dpaa-ceetm-WQ-CEETM-mode-switchover-cleanup.patch
new file mode 100644
index 0000000000..76c0ecacbc
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0070-sdk_dpaa-ceetm-WQ-CEETM-mode-switchover-cleanup.patch
@@ -0,0 +1,54 @@
+From c095bbc29eeae597c47c90d41fab472be9e14ca6 Mon Sep 17 00:00:00 2001
+From: Camelia Groza <camelia.groza@nxp.com>
+Date: Wed, 30 May 2018 15:26:47 +0300
+Subject: [PATCH] sdk_dpaa: ceetm: WQ/CEETM mode switchover cleanup
+
+Wait for the WQ TX FQs to empty before switching from WQ to CEETM mode.
+
+Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
+---
+ .../ethernet/freescale/sdk_dpaa/dpaa_eth_ceetm.c   | 26 ++++++++++++++++++++++
+ 1 file changed, 26 insertions(+)
+
+--- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_ceetm.c
++++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_ceetm.c
+@@ -65,6 +65,31 @@ static void get_dcp_and_sp(struct net_de
+ 	}
+ }
+ 
++/* Wait for the DPAA Eth driver WQ TX FQs to empty */
++static void dpaa_drain_fqs(struct net_device *dev)
++{
++	const struct dpa_priv_s *priv = netdev_priv(dev);
++	struct qm_mcr_queryfq_np np;
++	struct qman_fq *fq;
++	int ret, i;
++
++	for (i = 0; i < DPAA_ETH_TX_QUEUES; i ++) {
++		fq = priv->egress_fqs[i];
++		while (true) {
++			ret = qman_query_fq_np(fq, &np);
++			if (unlikely(ret)) {
++				pr_err(KBUILD_BASENAME
++				       " : %s : unable to query FQ %x: %d\n",
++				       __func__, fq->fqid, ret);
++				break;
++			}
++
++			if (np.frm_cnt == 0)
++				break;
++		}
++	}
++}
++
+ /* Enqueue Rejection Notification callback */
+ static void ceetm_ern(struct qman_portal *portal, struct qman_fq *fq,
+ 		      const struct qm_mr_entry *msg)
+@@ -1103,6 +1128,7 @@ static int ceetm_init(struct Qdisc *sch,
+ 	switch (priv->type) {
+ 	case CEETM_ROOT:
+ 		netif_tx_stop_all_queues(dev);
++		dpaa_drain_fqs(dev);
+ 		ret = ceetm_init_root(sch, priv, qopt, extack);
+ 		netif_tx_wake_all_queues(dev);
+ 		break;