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, 61 insertions, 0 deletions

diff --git a/target/linux/layerscape/patches-5.4/701-net-0195-dpaa2-eth-Add-helper-functions.patch b/target/linux/layerscape/patches-5.4/701-net-0195-dpaa2-eth-Add-helper-functions.patch
new file mode 100644
index 0000000000..a63977d08e
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0195-dpaa2-eth-Add-helper-functions.patch
@@ -0,0 +1,61 @@
+From 1ffb57beaefe23ceeb526bc238351f7725502571 Mon Sep 17 00:00:00 2001
+From: Ioana Radulescu <ruxandra.radulescu@nxp.com>
+Date: Mon, 16 Sep 2019 21:04:49 +0300
+Subject: [PATCH] dpaa2-eth: Add helper functions
+
+Add convenient helper functions that determines whether Rx/Tx pause
+frames are enabled based on link state flags received from firmware.
+
+Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
+---
+ drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c     |  3 +--
+ drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h     | 11 +++++++++++
+ drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c |  5 ++---
+ 3 files changed, 14 insertions(+), 5 deletions(-)
+
+--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
++++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
+@@ -1276,8 +1276,7 @@ static int link_state_update(struct dpaa
+ 	 * Rx FQ taildrop configuration as well. We configure taildrop
+ 	 * only when pause frame generation is disabled.
+ 	 */
+-	tx_pause = !!(state.options & DPNI_LINK_OPT_PAUSE) ^
+-		   !!(state.options & DPNI_LINK_OPT_ASYM_PAUSE);
++	tx_pause = dpaa2_eth_tx_pause_enabled(state.options);
+ 	dpaa2_eth_set_rx_taildrop(priv, !tx_pause);
+ 
+ 	/* Chech link state; speed / duplex changes are not treated yet */
+--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h
++++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h
+@@ -494,6 +494,17 @@ enum dpaa2_eth_rx_dist {
+ 	(dpaa2_eth_cmp_dpni_ver((priv), DPNI_PAUSE_VER_MAJOR,	\
+ 				DPNI_PAUSE_VER_MINOR) >= 0)
+ 
++static inline bool dpaa2_eth_tx_pause_enabled(u64 link_options)
++{
++	return !!(link_options & DPNI_LINK_OPT_PAUSE) ^
++	       !!(link_options & DPNI_LINK_OPT_ASYM_PAUSE);
++}
++
++static inline bool dpaa2_eth_rx_pause_enabled(u64 link_options)
++{
++	return !!(link_options & DPNI_LINK_OPT_PAUSE);
++}
++
+ static inline
+ unsigned int dpaa2_eth_needed_headroom(struct dpaa2_eth_priv *priv,
+ 				       struct sk_buff *skb)
+--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c
++++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c
+@@ -99,9 +99,8 @@ static void dpaa2_eth_get_pauseparam(str
+ 	struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+ 	u64 link_options = priv->link_state.options;
+ 
+-	pause->rx_pause = !!(link_options & DPNI_LINK_OPT_PAUSE);
+-	pause->tx_pause = pause->rx_pause ^
+-			  !!(link_options & DPNI_LINK_OPT_ASYM_PAUSE);
++	pause->rx_pause = dpaa2_eth_rx_pause_enabled(link_options);
++	pause->tx_pause = dpaa2_eth_tx_pause_enabled(link_options);
+ 	pause->autoneg = AUTONEG_DISABLE;
+ }
+