Add support for i.MX8MQ-EVK

Signed-off-by: Ivan Velickovic <[email protected]>

build_sdk.py

@@ -106,7 +106,20 @@ class ConfigInfo:
         examples={
             "passive_server": Path("example/imx8mm_evk/passive_server")
         }
-    )
+    ),
+    BoardInfo(
+        name="imx8mq_evk",
+        gcc_cpu="cortex-a53",
+        loader_link_address=0x41000000,
+        kernel_options = {
+            "KernelPlatform": "imx8mq-evk",
+            "KernelIsMCS": True,
+            "KernelArmExportPCNTUser": True,
+        },
+        examples={
+            "hello": Path("example/imx8mq_evk/hello")
+        }
+    ),
 )
 
 SUPPORTED_CONFIGS = (

docs/manual.md

@@ -516,6 +516,12 @@ This chapter describes the board support packages that are available in the SDK.
 
 ## i.MX8MM-EVK
 
+Microkit produces a raw binary file, so when using U-Boot you must execute the image using:
+
+    => go 0x41000000
+
+## i.MX8MQ-EVK
+
 Microkit produces a raw binary file, so when using U-Boot you must execute the image using:
 
     => go 0x41000000

example/imx8mq_evk/hello/Makefile

@@ -0,0 +1,55 @@
+#
+# Copyright 2021, Breakaway Consulting Pty. Ltd.
+#
+# SPDX-License-Identifier: BSD-2-Clause
+#
+ifeq ($(strip $(BUILD_DIR)),)
+$(error BUILD_DIR must be specified)
+endif
+
+ifeq ($(strip $(MICROKIT_SDK)),)
+$(error MICROKIT_SDK must be specified)
+endif
+
+ifeq ($(strip $(MICROKIT_BOARD)),)
+$(error MICROKIT_BOARD must be specified)
+endif
+
+ifeq ($(strip $(MICROKIT_CONFIG)),)
+$(error MICROKIT_CONFIG must be specified)
+endif
+
+TOOLCHAIN := aarch64-none-elf
+
+CPU := cortex-a53
+
+CC := $(TOOLCHAIN)-gcc
+LD := $(TOOLCHAIN)-ld
+AS := $(TOOLCHAIN)-as
+MICROKIT_TOOL ?= $(MICROKIT_SDK)/bin/microkit
+
+HELLO_OBJS := hello.o
+
+BOARD_DIR := $(MICROKIT_SDK)/board/$(MICROKIT_BOARD)/$(MICROKIT_CONFIG)
+
+IMAGES := hello.elf
+CFLAGS := -mcpu=$(CPU) -mstrict-align -nostdlib -ffreestanding -g3 -O3 -Wall  -Wno-unused-function -Werror -I$(BOARD_DIR)/include
+LDFLAGS := -L$(BOARD_DIR)/lib
+LIBS := -lmicrokit -Tmicrokit.ld
+
+IMAGE_FILE = $(BUILD_DIR)/loader.img
+REPORT_FILE = $(BUILD_DIR)/report.txt
+
+all: $(IMAGE_FILE)
+
+$(BUILD_DIR)/%.o: %.c Makefile
+	$(CC) -c $(CFLAGS) $< -o $@
+
+$(BUILD_DIR)/%.o: %.s Makefile
+	$(AS) -g3 -mcpu=$(CPU) $< -o $@
+
+$(BUILD_DIR)/hello.elf: $(addprefix $(BUILD_DIR)/, $(HELLO_OBJS))
+	$(LD) $(LDFLAGS) $^ $(LIBS) -o $@
+
+$(IMAGE_FILE) $(REPORT_FILE): $(addprefix $(BUILD_DIR)/, $(IMAGES)) hello.system
+	$(MICROKIT_TOOL) hello.system --search-path $(BUILD_DIR) --board $(MICROKIT_BOARD) --config $(MICROKIT_CONFIG) -o $(IMAGE_FILE) -r $(REPORT_FILE)

example/imx8mq_evk/hello/hello.c

@@ -0,0 +1,16 @@
+/*
+ * Copyright 2021, Breakaway Consulting Pty. Ltd.
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+#include <stdint.h>
+#include <microkit.h>
+
+void init(void)
+{
+    microkit_dbg_puts("hello, world\n");
+}
+
+void notified(microkit_channel ch)
+{
+}

example/imx8mq_evk/hello/hello.system

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2021, Breakaway Consulting Pty. Ltd.
+
+ SPDX-License-Identifier: BSD-2-Clause
+-->
+<system>
+    <protection_domain name="hello" priority="254">
+        <program_image path="hello.elf" />
+    </protection_domain>
+</system>

loader/src/loader.c

@@ -139,7 +139,7 @@ static void putc(uint8_t ch)
 {
     *((volatile uint32_t *)(0x00FF000030)) = ch;
 }
-#elif defined(BOARD_maaxboard)
+#elif defined(BOARD_maaxboard) || defined(BOARD_imx8mq_evk)
 #define UART_BASE 0x30860000
 #define STAT 0x98
 #define TRANSMIT 0x40