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, 56 insertions, 0 deletions

diff --git a/target/linux/layerscape/patches-5.4/701-net-0387-net-phy-vsc8514-enable-in-band-SGMII-auto-negotiatio.patch b/target/linux/layerscape/patches-5.4/701-net-0387-net-phy-vsc8514-enable-in-band-SGMII-auto-negotiatio.patch
new file mode 100644
index 0000000000..8aaafe5dcc
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0387-net-phy-vsc8514-enable-in-band-SGMII-auto-negotiatio.patch
@@ -0,0 +1,56 @@
+From ebfedac745f6d747df2214e11a89ba44742b3def Mon Sep 17 00:00:00 2001
+From: Alex Marginean <alexandru.marginean@nxp.com>
+Date: Fri, 27 Dec 2019 21:44:46 +0200
+Subject: [PATCH] net: phy: vsc8514: enable in-band SGMII auto-negotiation
+ setting
+
+The default in-band AN setting for the VSC8514 PHY is not very reliable:
+its out-of-reset state is with SerDes AN disabled, but certain boot
+firmware (such as U-Boot) enables it during the boot process.
+
+So its final state as seen by Linux depends on whether the U-Boot PHY
+driver has run or not.
+
+If SGMII auto-negotiation is enabled but not acknowledged by the MAC,
+the PHY does not pass traffic.
+
+But otherwise, it is able to pass traffic both with AN disabled, and
+with AN enabled.
+
+We would like to make this explicitly configurable rather than hardcoded
+as "on" as we are doing right now, but we'd rather hardcode it in LSDK
+and wait until a solution lands upstream, than invent a solution for
+this here.
+
+Signed-off-by: Alex Marginean <alexandru.marginean@nxp.com>
+Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
+---
+ drivers/net/phy/mscc.c | 10 ++++++++++
+ 1 file changed, 10 insertions(+)
+
+--- a/drivers/net/phy/mscc.c
++++ b/drivers/net/phy/mscc.c
+@@ -176,6 +176,8 @@ enum rgmii_rx_clock_delay {
+ #define SECURE_ON_PASSWD_LEN_4		  0x4000
+ 
+ /* Extended Page 3 Registers */
++#define MSCC_PHY_SERDES_CON		  16
++#define MSCC_PHY_SERDES_ANEG		  BIT(7)
+ #define MSCC_PHY_SERDES_TX_VALID_CNT	  21
+ #define MSCC_PHY_SERDES_TX_CRC_ERR_CNT	  22
+ #define MSCC_PHY_SERDES_RX_VALID_CNT	  28
+@@ -2131,6 +2133,14 @@ static int vsc8514_config_init(struct ph
+ 
+ 	mutex_unlock(&phydev->mdio.bus->mdio_lock);
+ 
++	ret = phy_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_3);
++	if (ret)
++		return ret;
++
++	ret = phy_set_bits(phydev, MSCC_PHY_SERDES_CON, MSCC_PHY_SERDES_ANEG);
++	if (ret)
++		return ret;
++
+ 	ret = phy_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
+ 
+ 	if (ret)