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, 38 insertions, 0 deletions

diff --git a/target/linux/layerscape/patches-5.4/701-net-0399-staging-fsl_ppfe-eth-Enhance-error-checking-in-platf.patch b/target/linux/layerscape/patches-5.4/701-net-0399-staging-fsl_ppfe-eth-Enhance-error-checking-in-platf.patch
new file mode 100644
index 0000000000..a42e9aa354
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0399-staging-fsl_ppfe-eth-Enhance-error-checking-in-platf.patch
@@ -0,0 +1,38 @@
+From 1ccc18ca96d8a824f2af45d1046d23ccdb90f3df Mon Sep 17 00:00:00 2001
+From: Anji Jagarlmudi <anji.jagarlmudi@nxp.com>
+Date: Wed, 8 Jan 2020 12:18:40 +0530
+Subject: [PATCH] staging: fsl_ppfe/eth: Enhance error checking in platform
+ probe
+
+Fix the kernel crash when MAC addr is not passed in dtb.
+
+Signed-off-by: Anji Jagarlmudi <anji.jagarlmudi@nxp.com>
+---
+ drivers/staging/fsl_ppfe/pfe_ls1012a_platform.c | 10 +++++++---
+ 1 file changed, 7 insertions(+), 3 deletions(-)
+
+--- a/drivers/staging/fsl_ppfe/pfe_ls1012a_platform.c
++++ b/drivers/staging/fsl_ppfe/pfe_ls1012a_platform.c
+@@ -29,15 +29,19 @@ static int pfe_get_gemac_if_properties(s
+ 	int size;
+ 	int phy_id = 0;
+ 	const u32 *addr;
+-	const void *mac_addr;
++	const u8 *mac_addr;
+ 
+ 	addr = of_get_property(gem, "reg", &size);
+-	port = be32_to_cpup(addr);
++	if (addr)
++		port = be32_to_cpup(addr);
++	else
++		goto err;
++
+ 
+ 	pdata->ls1012a_eth_pdata[port].gem_id = port;
+ 
+ 	mac_addr = of_get_mac_address(gem);
+-	if (mac_addr) {
++	if (!IS_ERR_OR_NULL(mac_addr)) {
+ 		memcpy(pdata->ls1012a_eth_pdata[port].mac_addr, mac_addr,
+ 		       ETH_ALEN);
+ 	}