arm64/imx9: add imx93-evk ddr training

This performs the training for imx93-evk. In addition to the source code,
it downloads binaries which are included in the final image.

Signed-off-by: Eero Nurkkala <[email protected]>

arch/arm64/src/imx9/Make.defs

@@ -20,6 +20,10 @@
 
 include common/Make.defs
 
+ifeq ($(CONFIG_IMX9_DDR_TRAINING),y)
+  include imx9/ddr/Make.defs
+endif
+
 # i.MX9-specific C source files
 
 CHIP_CSRCS = imx9_boot.c imx9_ccm.c imx9_clockconfig.c imx9_gpio.c imx9_iomuxc.c
@@ -77,6 +81,9 @@ ifeq ($(CONFIG_IMX9_FLEXSPI_NOR), y)
 endif
 
 ifeq ($(CONFIG_IMX9_BOOTLOADER), y)
- CHIP_CSRCS += imx9_system_ctl.c
- CHIP_CSRCS += imx9_trdc.c
+  CHIP_CSRCS += imx9_system_ctl.c
+  CHIP_CSRCS += imx9_trdc.c
+  ifeq ($(CONFIG_IMX9_DDR_TRAINING),y)
+    CHIP_CSRCS += $(DDR_CSRCS)
+  endif
 endif

arch/arm64/src/imx9/ddr/Make.defs

@@ -0,0 +1,50 @@
+############################################################################
+# arch/arm64/src/imx9/ddr/Make.defs
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.  The
+# ASF licenses this file to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance with the
+# License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+############################################################################
+
+include common/Make.defs
+
+DEPPATH += --dep-path imx9/ddr
+VPATH += imx9/ddr
+SUBDIRS += imx9/ddr
+
+DDR_CSRCS += imx9_ddr_training.c
+
+DDR_UNPACK  = firmware-imx-8.23
+BASE_URL    = https://www.nxp.com/lgfiles/NMG/MAD/YOCTO
+DDR_BINARY  = $(DDR_UNPACK).bin
+
+$(DDR_BINARY):
+	$(call DOWNLOAD,$(BASE_URL),$(DDR_UNPACK).bin,imx9/ddr/$(DDR_BINARY))
+
+.ddrunpack: $(DDR_BINARY)
+	$(Q) echo "Unpacking ddr binaries"
+	$(Q) chmod a+x ./imx9/ddr/$(DDR_BINARY)
+	$(Q) (cd imx9/ddr && ./$(DDR_BINARY) --auto-accept)
+	$(Q) touch imx9/ddr/.ddrunpack
+
+ifeq ($(wildcard ddr/$(DDR_UNPACK)/.scmversion),)
+context:: .ddrunpack
+
+distclean::
+	$(call DELFILE, imx9/ddr/.ddr_unpack)
+	$(call DELFILE, imx9/ddr/$(DDR_BINARY))
+	$(call DELDIR, imx9/ddr/$(DDR_UNPACK))
+
+endif