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, 101 insertions, 0 deletions

diff --git a/target/linux/layerscape/patches-5.4/701-net-0031-sdk_dpaa-ls1043a-errata-maintain-timestamp-info.patch b/target/linux/layerscape/patches-5.4/701-net-0031-sdk_dpaa-ls1043a-errata-maintain-timestamp-info.patch
new file mode 100644
index 0000000000..e7fd78cae1
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0031-sdk_dpaa-ls1043a-errata-maintain-timestamp-info.patch
@@ -0,0 +1,101 @@
+From 2af4c8f51e2a55173f412ea51d5715378bba15be Mon Sep 17 00:00:00 2001
+From: Camelia Groza <camelia.groza@nxp.com>
+Date: Thu, 14 Sep 2017 10:40:53 +0300
+Subject: [PATCH] sdk_dpaa: ls1043a errata: maintain timestamp info
+
+When creating a new skb for the errata workaround, maintain the socket
+and timestamp configurations for timestamp hardware offloading.
+
+Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
+---
+ .../net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c  | 44 +++++++++++++++-------
+ 1 file changed, 31 insertions(+), 13 deletions(-)
+
+--- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c
++++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c
+@@ -42,6 +42,7 @@
+ #include <linux/skbuff.h>
+ #include <linux/highmem.h>
+ #include <linux/fsl_bman.h>
++#include <net/sock.h>
+ 
+ #include "dpaa_eth.h"
+ #include "dpaa_eth_common.h"
+@@ -808,7 +809,11 @@ static struct sk_buff *a010022_realign_s
+ 	struct page *npage;
+ 	void *npage_addr;
+ 
+-	headroom = priv->tx_headroom;
++	/* Guarantee the minimum required headroom */
++	if (skb_headroom(skb) >= priv->tx_headroom)
++		headroom = skb_headroom(skb);
++	else
++		headroom = priv->tx_headroom;
+ 
+ 	npage = alloc_page(GFP_ATOMIC);
+ 	if (unlikely(!npage)) {
+@@ -832,8 +837,11 @@ static struct sk_buff *a010022_realign_s
+ 	if (unlikely(!nskb))
+ 		goto err;
+ 
+-	/* Code borrowed and adapted from skb_copy() */
+-	skb_reserve(nskb, headroom);
++	/* Reserve only the needed headroom in order to guarantee the data's
++	 * alignment.
++	 * Code borrowed and adapted from skb_copy().
++	 */
++	skb_reserve(nskb, priv->tx_headroom);
+ 	skb_put(nskb, skb->len);
+ 	if (skb_copy_bits(skb, 0, nskb->data, skb->len)) {
+ 		WARN_ONCE(1, "skb parsing failure\n");
+@@ -841,6 +849,16 @@ static struct sk_buff *a010022_realign_s
+ 	}
+ 	copy_skb_header(nskb, skb);
+ 
++#ifdef CONFIG_FSL_DPAA_TS
++	/* Copy relevant timestamp info from the old skb to the new */
++	if (priv->ts_tx_en) {
++		skb_shinfo(nskb)->tx_flags = skb_shinfo(skb)->tx_flags;
++		skb_shinfo(nskb)->hwtstamps = skb_shinfo(skb)->hwtstamps;
++		skb_shinfo(nskb)->tskey = skb_shinfo(skb)->tskey;
++		if (skb->sk)
++			skb_set_owner_w(nskb, skb->sk);
++	}
++#endif
+ 	/* We move the headroom when we align it so we have to reset the
+ 	 * network and transport header offsets relative to the new data
+ 	 * pointer. The checksum offload relies on these offsets.
+@@ -1041,6 +1059,16 @@ int __hot dpa_tx_extended(struct sk_buff
+ 
+ 	clear_fd(&fd);
+ 
++#ifndef CONFIG_PPC
++	if (unlikely(dpaa_errata_a010022) && a010022_check_skb(skb, priv)) {
++		skb = a010022_realign_skb(skb, priv);
++		if (!skb)
++			goto skb_to_fd_failed;
++	}
++#endif
++
++	nonlinear = skb_is_nonlinear(skb);
++
+ #ifdef CONFIG_FSL_DPAA_1588
+ 	if (priv->tsu && priv->tsu->valid && priv->tsu->hwts_tx_en_ioctl)
+ 		fd.cmd |= FM_FD_CMD_UPD;
+@@ -1052,16 +1080,6 @@ int __hot dpa_tx_extended(struct sk_buff
+ 	skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
+ #endif /* CONFIG_FSL_DPAA_TS */
+ 
+-#ifndef CONFIG_PPC
+-	if (unlikely(dpaa_errata_a010022) && a010022_check_skb(skb, priv)) {
+-		skb = a010022_realign_skb(skb, priv);
+-		if (!skb)
+-			goto skb_to_fd_failed;
+-	}
+-#endif
+-
+-	nonlinear = skb_is_nonlinear(skb);
+-
+ 	/* MAX_SKB_FRAGS is larger than our DPA_SGT_MAX_ENTRIES; make sure
+ 	 * we don't feed FMan with more fragments than it supports.
+ 	 * Btw, we're using the first sgt entry to store the linear part of