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, 58 insertions, 0 deletions

diff --git a/target/linux/layerscape/patches-5.4/303-core-0012-LF-789-1-Revert-scripts-Makefile-Enable-creation-of-.patch b/target/linux/layerscape/patches-5.4/303-core-0012-LF-789-1-Revert-scripts-Makefile-Enable-creation-of-.patch
new file mode 100644
index 0000000000..744930c726
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/303-core-0012-LF-789-1-Revert-scripts-Makefile-Enable-creation-of-.patch
@@ -0,0 +1,58 @@
+From b13487a97b51a619b4e681a6091a1da9d6733058 Mon Sep 17 00:00:00 2001
+From: Jason Liu <jason.hui.liu@nxp.com>
+Date: Fri, 10 Jan 2020 11:38:05 +0800
+Subject: [PATCH] LF-789-1 Revert "scripts: Makefile: Enable creation of
+ _symbols_ DT node for overlays"
+
+This reverts commit 432071b7a106060fa4e451e10249cef021af0b7c.
+
+commit: 432071b7a106 scripts: Makefile: Enable creation of _symbols_ DT node for overlays
+changes the common Makefile and force creation of __symbols__ node on all platforms.
+
+This is not good and not acceptible under some cases due to this change will increase
+the final DTB size a lot and bring big impact for others who does not need creation
+of _symbols_ DT node for overlays.For example, on i.MX OP-TEE, the maxsize of DT is 1MB,
+this patch will break some of the i.MX6/i.MX7 boards to boot with OP-TEE enabled.
+
+BTW, community has the similar patch but rejected. The following post discuss about this:
+https://lore.kernel.org/patchwork/patch/821645/
+
+For specifc plaform/board which need the creation of _symbols_ DT node for overlays, user can
+define DTC_FLAGS_target either trough dtc build command line(#1) or with board specific Makefile(#2)
+
+For example:#1
+
+make DTC_FLAGS_fsl-ls1028a-qds=-@ freescale/fsl-ls1028a-qds.dtb
+
+For example:#2
+
+In arch/arm64/boot/dts/freescale/Makefile,
+
+ @@ -1,4 +1,7 @@
+  # SPDX-License-Identifier: GPL-2.0
+ +# required for overlay support
+ +#DTC_FLAGS_fsl-ls1028a-qds := -@
+ +
+
+Signed-off-by: Jason Liu <jason.hui.liu@nxp.com>
+Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
+Reviewed-by: Alex Marginean <alexandru.marginean@nxp.com>
+Tested-by: Alex Marginean <alexandru.marginean@nxp.com>
+[fix commit message]
+Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
+---
+ scripts/Makefile.lib | 3 ---
+ 1 file changed, 3 deletions(-)
+
+--- a/scripts/Makefile.lib
++++ b/scripts/Makefile.lib
+@@ -255,9 +255,6 @@ endif
+ 
+ DTC_FLAGS += $(DTC_FLAGS_$(basetarget))
+ 
+-# Enable creation of _symbols_ node for DT overlays
+-DTC_FLAGS += -@
+-
+ # Generate an assembly file to wrap the output of the device tree compiler
+ quiet_cmd_dt_S_dtb= DTB     $@
+ cmd_dt_S_dtb=						\