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, 110 insertions, 0 deletions

diff --git a/target/linux/layerscape/patches-5.4/701-net-0307-staging-fsl_ppfe-eth-add-fixed-link-support.patch b/target/linux/layerscape/patches-5.4/701-net-0307-staging-fsl_ppfe-eth-add-fixed-link-support.patch
new file mode 100644
index 0000000000..298c34a5e8
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0307-staging-fsl_ppfe-eth-add-fixed-link-support.patch
@@ -0,0 +1,110 @@
+From 04373c37df836557ae7ebb769383baa1b57c5ffa Mon Sep 17 00:00:00 2001
+From: Calvin Johnson <calvin.johnson@nxp.com>
+Date: Thu, 4 Oct 2018 09:38:17 +0530
+Subject: [PATCH] staging: fsl_ppfe/eth: add fixed-link support
+
+In cases where MAC is not connected to a normal MDIO-managed PHY
+device, and instead to a switch, it is configured as a "fixed-link".
+Code to handle this scenario is added here.
+
+phy_node in the dtb is checked to identify a fixed-link.
+On identification of a fixed-link, it is registered and connected.
+
+Signed-off-by: Calvin Johnson <calvin.johnson@nxp.com>
+---
+ drivers/staging/fsl_ppfe/pfe_eth.c              | 21 ++++++++++++++++++++-
+ drivers/staging/fsl_ppfe/pfe_eth.h              |  2 ++
+ drivers/staging/fsl_ppfe/pfe_ls1012a_platform.c |  4 ++++
+ 3 files changed, 26 insertions(+), 1 deletion(-)
+
+--- a/drivers/staging/fsl_ppfe/pfe_eth.c
++++ b/drivers/staging/fsl_ppfe/pfe_eth.c
+@@ -39,6 +39,9 @@
+ #include <net/ip.h>
+ #include <net/sock.h>
+ 
++#include <linux/of.h>
++#include <linux/of_mdio.h>
++
+ #include <linux/io.h>
+ #include <asm/irq.h>
+ #include <linux/delay.h>
+@@ -1263,6 +1266,8 @@ static int pfe_phy_init(struct net_devic
+ 	char phy_id[MII_BUS_ID_SIZE + 3];
+ 	char bus_id[MII_BUS_ID_SIZE];
+ 	phy_interface_t interface;
++	struct device_node *phy_node;
++	int rc;
+ 
+ 	priv->oldlink = 0;
+ 	priv->oldspeed = 0;
+@@ -1293,7 +1298,20 @@ static int pfe_phy_init(struct net_devic
+ 	priv->oldspeed = 0;
+ 	priv->oldduplex = -1;
+ 	pr_info("%s interface %x\n", __func__, interface);
+-	phydev = phy_connect(ndev, phy_id, &pfe_eth_adjust_link, interface);
++
++	if (of_phy_is_fixed_link(priv->phy_node)) {
++		rc = of_phy_register_fixed_link(priv->phy_node);
++		if (rc)
++			return rc;
++		phy_node = of_node_get(priv->phy_node);
++		phydev = of_phy_connect(ndev, phy_node, pfe_eth_adjust_link, 0,
++					priv->einfo->mii_config);
++		of_node_put(phy_node);
++
++	} else {
++		phydev = phy_connect(ndev, phy_id,
++				     &pfe_eth_adjust_link, interface);
++	}
+ 
+ 	if (IS_ERR(phydev)) {
+ 		netdev_err(ndev, "phy_connect() failed\n");
+@@ -2371,6 +2389,7 @@ static int pfe_eth_init_one(struct pfe *
+ 	priv->ndev = ndev;
+ 	priv->id = einfo[id].gem_id;
+ 	priv->pfe = pfe;
++	priv->phy_node = einfo[id].phy_node;
+ 
+ 	SET_NETDEV_DEV(priv->ndev, priv->pfe->dev);
+ 
+--- a/drivers/staging/fsl_ppfe/pfe_eth.h
++++ b/drivers/staging/fsl_ppfe/pfe_eth.h
+@@ -61,6 +61,7 @@ struct ls1012a_eth_platform_data {
+ 	u32 phy_id;
+ 	u32 mdio_muxval;
+ 	u8 mac_addr[ETH_ALEN];
++	struct device_node	*phy_node;
+ };
+ 
+ struct ls1012a_mdio_platform_data {
+@@ -144,6 +145,7 @@ struct  pfe_eth_priv_s {
+ 	int			oldspeed;
+ 	int			oldduplex;
+ 	int			oldlink;
++	struct device_node	*phy_node;
+ 	/* mdio info */
+ 	int			mdc_div;
+ 	struct mii_bus		*mii_bus;
+--- a/drivers/staging/fsl_ppfe/pfe_ls1012a_platform.c
++++ b/drivers/staging/fsl_ppfe/pfe_ls1012a_platform.c
+@@ -18,8 +18,10 @@
+ 
+ #include <linux/module.h>
+ #include <linux/device.h>
++#include <linux/of.h>
+ #include <linux/of_net.h>
+ #include <linux/of_address.h>
++#include <linux/of_mdio.h>
+ #include <linux/platform_device.h>
+ #include <linux/slab.h>
+ #include <linux/clk.h>
+@@ -124,6 +126,8 @@ static int pfe_get_gemac_if_proprties(st
+ 	pdata->ls1012a_mdio_pdata[port].irq[0] = PHY_POLL;
+ 
+ done:
++	if (of_phy_is_fixed_link(gem))
++		pdata->ls1012a_eth_pdata[port].phy_node = of_node_get(gem);
+ 
+ 	return 0;
+