arm-trusted-firmware-imx: add new package

Build ATF images for i.MX8MP. Tested on Kontron OSM-S/BL i.MX8MP.

The default IMX_BOOT_UART_BASE for imx8mp platforms is 0x30890000, which
would be UART2. The Kontron board however uses UART3 as serial debug
console. As a result, after loading BL31 the system hangs.

Setting IMX_BOOT_UART_BASE=auto will fix it.

Signed-off-by: Martin Schiller <ms@dev.tdt.de>

diff --git a/package/boot/arm-trusted-firmware-imx/Makefile b/package/boot/arm-trusted-firmware-imx/Makefile
new file mode 100644 (file)
index 0000000..1dcc062
--- /dev/null
+++ b/package/boot/arm-trusted-firmware-imx/Makefile
@@ -0,0 +1,42 @@
+#
+# Copyright (C) 2026 Martin Schiller <ms@dev.tdt.de>
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_VERSION:=2.14.0
+PKG_RELEASE:=1
+
+PKG_HASH:=b2a3bc360307c929714ffd8e7f1441c4888cd5d80531276e809c2de54db5dc16
+
+PKG_MAINTAINER:=Martin Schiller <ms@dev.tdt.de>
+
+include $(INCLUDE_DIR)/kernel.mk
+include $(INCLUDE_DIR)/trusted-firmware-a.mk
+include $(INCLUDE_DIR)/package.mk
+
+define Trusted-Firmware-A/Default
+  BUILD_TARGET:=imx
+  BUILD_SUBTARGET:=cortexa53
+endef
+
+define Trusted-Firmware-A/imx8mp
+  NAME:=NXP i.MX8MP
+  PLAT:=imx8mp
+endef
+
+TFA_TARGETS:= \
+       imx8mp
+
+TFA_MAKE_FLAGS += \
+       IMX_BOOT_UART_BASE="auto"
+
+define Package/trusted-firmware-a/install
+       $(INSTALL_DIR) $(STAGING_DIR_IMAGE)
+       $(INSTALL_DATA) $(PKG_BUILD_DIR)/build/$(PLAT)/release/bl31.bin $(STAGING_DIR_IMAGE)/bl31_$(BUILD_VARIANT).bin
+endef
+
+$(eval $(call BuildPackage/Trusted-Firmware-A))