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boards/arm/qemu: Add qemu board for ARM

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See boards/arm/qemu/qemu-armv7a/README.txt for details

Signed-off-by: wangming9 <wangming9@xiaomi.com>
This commit is contained in:
wangming9 2023-08-11 14:06:04 +08:00 committed by Xiang Xiao
parent e953715e6d
commit 8cee6f0cc8
12 changed files with 743 additions and 0 deletions
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12
boards/Kconfig
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@ -1918,6 +1918,14 @@ config ARCH_BOARD_SABRE_6QUAD
This options selects support for NuttX on the NXP/Freescale Sabre
board featuring the iMX 6Quad CPU.
config ARCH_BOARD_QEMU_ARMV7A
bool "Qemu ARMv7a CPUs board"
depends on ARCH_CHIP_QEMU_ARM
select ARCH_HAVE_IRQBUTTONS
---help---
This options selects support for NuttX on the QEMU ARMv7a + virt
board featuring the qemu ARMv7a CPUs.
config ARCH_BOARD_QEMU_ARMV8A
bool "Qemu ARMv8a CPUs board"
depends on ARCH_CHIP_QEMU
@ -3081,6 +3089,7 @@ config ARCH_BOARD
default "rv-virt" if ARCH_BOARD_QEMU_RV_VIRT
default "star64" if ARCH_BOARD_JH7110_STAR64
default "sabre-6quad" if ARCH_BOARD_SABRE_6QUAD
default "qemu-armv7a" if ARCH_BOARD_QEMU_ARMV7A
default "qemu-armv8a" if ARCH_BOARD_QEMU_ARMV8A
default "pinephone" if ARCH_BOARD_PINEPHONE
default "fvp-armv8r" if ARCH_BOARD_FVP_ARMV8R
@ -3275,6 +3284,9 @@ endif
if ARCH_BOARD_SABRE_6QUAD
source "boards/arm/imx6/sabre-6quad/Kconfig"
endif
if ARCH_BOARD_QEMU_ARMV7A
source "boards/arm/qemu/qemu-armv7a/Kconfig"
endif
if ARCH_BOARD_QEMU_ARMV8A
source "boards/arm64/qemu/qemu-armv8a/Kconfig"
endif

7
boards/arm/qemu/qemu-armv7a/Kconfig Normal file
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@ -0,0 +1,7 @@
#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#
if ARCH_BOARD_QEMU_ARMV7A
endif

62
boards/arm/qemu/qemu-armv7a/README.txt Normal file
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@ -0,0 +1,62 @@
README.txt
==========
This board configuration will use QEMU to emulate generic ARM v7-A series
hardware platform and provides support for these devices:
- GICv2 interrupt controllers
- ARM Generic Timer
- PL011 UART controller
Contents
========
- Getting Started
- Status
- Platform Features
- Debugging with QEMU
- FPU Support and Performance
- SMP Support
- References
Getting Started
===============
1. Configuring and running
1.1 Single Core
Configuring NuttX and compile:
$ ./tools/configure.sh -l qemu-armv7a:nsh
$ make
Running with qemu
$ qemu-system-arm -cpu cortex-a7 -nographic \
-machine virt,virtualization=off,gic-version=2 \
-net none -chardev stdio,id=con,mux=on -serial chardev:con \
-mon chardev=con,mode=readline -kernel ./nuttx
Debugging with QEMU
===================
The nuttx ELF image can be debugged with QEMU.
1. To debug the nuttx (ELF) with symbols, make sure the following change have
applied to defconfig.
+CONFIG_DEBUG_SYMBOLS=y
2. Run QEMU(at shell terminal 1)
Single Core
$ qemu-system-arm -cpu cortex-a7 -nographic \
-machine virt,virtualization=off,gic-version=2 \
-net none -chardev stdio,id=con,mux=on -serial chardev:con \
-mon chardev=con,mode=readline -kernel ./nuttx -S -s
3. Run gdb with TUI, connect to QEMU, load nuttx and continue (at shell terminal 2)
$ arm-none-eabi-gdb -tui --eval-command='target remote localhost:1234' nuttx
(gdb) c
Continuing.
^C
Program received signal SIGINT, Interrupt.
nx_start () at armv7-a/arm_head.S:209
(gdb)

74
boards/arm/qemu/qemu-armv7a/configs/nsh/defconfig Normal file
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@ -0,0 +1,74 @@
#
# This file is autogenerated: PLEASE DO NOT EDIT IT.
#
# You can use "make menuconfig" to make any modifications to the installed .config file.
# You can then do "make savedefconfig" to generate a new defconfig file that includes your
# modifications.
#
CONFIG_ALARM_ARCH=y
CONFIG_ARCH="arm"
CONFIG_ARCH_BOARD="qemu-armv7a"
CONFIG_ARCH_BOARD_QEMU_ARMV7A=y
CONFIG_ARCH_CHIP="qemu"
CONFIG_ARCH_CHIP_QEMU_ARM=y
CONFIG_ARCH_CHIP_QEMU_CORTEXA7=y
CONFIG_ARCH_INTERRUPTSTACK=2048
CONFIG_ARCH_LOWVECTORS=y
CONFIG_BUILTIN=y
CONFIG_DEBUG_ASSERTIONS=y
CONFIG_DEBUG_ERROR=y
CONFIG_DEBUG_FEATURES=y
CONFIG_DEBUG_FULLOPT=y
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_SCHED=y
CONFIG_DEBUG_SCHED_ERROR=y
CONFIG_DEBUG_SCHED_INFO=y
CONFIG_DEBUG_SCHED_WARN=y
CONFIG_DEBUG_SYMBOLS=y
CONFIG_DEBUG_WARN=y
CONFIG_DEFAULT_TASK_STACKSIZE=4096
CONFIG_DEV_ZERO=y
CONFIG_EXAMPLES_HELLO=y
CONFIG_EXPERIMENTAL=y
CONFIG_FLASH_SIZE=134217728
CONFIG_FLASH_START=0
CONFIG_FLASH_VSTART=0
CONFIG_FS_PROCFS=y
CONFIG_FS_ROMFS=y
CONFIG_HAVE_CXX=y
CONFIG_HAVE_CXXINITIALIZE=y
CONFIG_IDLETHREAD_STACKSIZE=4096
CONFIG_INIT_ENTRYPOINT="nsh_main"
CONFIG_INTELHEX_BINARY=y
CONFIG_NSH_ARCHINIT=y
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_FILEIOSIZE=512
CONFIG_NSH_READLINE=y
CONFIG_NSH_ROMFSETC=y
CONFIG_ONESHOT=y
CONFIG_PREALLOC_TIMERS=4
CONFIG_RAMLOG=y
CONFIG_RAM_SIZE=134217728
CONFIG_RAM_START=0x40000000
CONFIG_RAM_VSTART=0x40000000
CONFIG_RAW_BINARY=y
CONFIG_READLINE_CMD_HISTORY=y
CONFIG_RR_INTERVAL=200
CONFIG_SCHED_HPWORK=y
CONFIG_SCHED_HPWORKPRIORITY=192
CONFIG_SPINLOCK=y
CONFIG_STACK_COLORATION=y
CONFIG_START_DAY=25
CONFIG_START_MONTH=4
CONFIG_START_YEAR=2023
CONFIG_SYMTAB_ORDEREDBYNAME=y
CONFIG_SYSTEM_NSH=y
CONFIG_SYSTEM_SYSTEM=y
CONFIG_TESTING_GETPRIME=y
CONFIG_TESTING_OSTEST=y
CONFIG_UART1_BASE=0x9000000
CONFIG_UART1_IRQ=33
CONFIG_UART1_PL011=y
CONFIG_UART1_SERIAL_CONSOLE=y
CONFIG_UART_PL011=y
CONFIG_USEC_PER_TICK=1000

59
boards/arm/qemu/qemu-armv7a/include/board.h Normal file
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@ -0,0 +1,59 @@
/****************************************************************************
* boards/arm/qemu/qemu-armv7a/include/board.h
*
* 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.
*
****************************************************************************/
#ifndef __BOARDS_ARM_QEMU_QEMU_ARMV7A_INCLUDE_BOARD_H
#define __BOARDS_ARM_QEMU_QEMU_ARMV7A_INCLUDE_BOARD_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
#ifndef __ASSEMBLY__
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __BOARDS_ARM_QEMU_QEMU_ARMV7A_INCLUDE_BOARD_H */

48
boards/arm/qemu/qemu-armv7a/scripts/Make.defs Normal file
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@ -0,0 +1,48 @@
############################################################################
# boards/arm/qemu/qemu-armv7a/scripts/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 $(TOPDIR)/.config
include $(TOPDIR)/tools/Config.mk
include $(TOPDIR)/arch/arm/src/armv7-a/Toolchain.defs
LDSCRIPT = dramboot.ld
ARCHSCRIPT += $(BOARD_DIR)$(DELIM)scripts$(DELIM)$(LDSCRIPT)
CFLAGS := $(ARCHCFLAGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -pipe
CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
CXXFLAGS := $(ARCHCXXFLAGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -pipe
CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
CPPFLAGS := $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS)
AFLAGS := $(CFLAGS) -D__ASSEMBLY__
# NXFLAT module definitions
NXFLATLDFLAGS1 = -r -d -warn-common
NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)$(DELIM)binfmt$(DELIM)libnxflat$(DELIM)gnu-nxflat-pcrel.ld -no-check-sections
LDNXFLATFLAGS = -e main -s 2048
# ELF module definitions
CELFFLAGS = $(CFLAGS) -mlong-calls # --target1-abs
CXXELFFLAGS = $(CXXFLAGS) -mlong-calls # --target1-abs
LDELFFLAGS = -r -e main
LDELFFLAGS += -T $(call CONVERT_PATH,$(TOPDIR)/binfmt/libelf/gnu-elf.ld)

105
boards/arm/qemu/qemu-armv7a/scripts/dramboot.ld Normal file
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@ -0,0 +1,105 @@
/****************************************************************************
* boards/arm/qemu/qemu-armv7a/scripts/dramboot_armv7a.ld
*
* 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.
*
****************************************************************************/
OUTPUT_ARCH(arm)
ENTRY(__start)
PHDRS
{
text PT_LOAD ;
}
SECTIONS
{
. = 0x40000000;
.text : {
_stext = .; /* Text section */
*(.vectors)
*(.text)
*(.text.cold)
*(.text.unlikely)
*(.fixup)
*(.gnu.warning)
} :text
. = ALIGN(4096);
.init_section : {
_sinit = ABSOLUTE(.);
KEEP(*(.init_array .init_array.*))
_einit = ABSOLUTE(.);
} :text
. = ALIGN(4096);
_etext = .; /* End_1 of .text */
_sztext = _etext - _stext;
.rodata : {
_srodata = .; /* Read-only data */
*(.rodata)
*(.rodata.*)
*(.data.rel.ro)
*(.data.rel.ro.*)
} :text
. = ALIGN(4096);
_erodata = .; /* End of read-only data */
_szrodata = _erodata - _srodata;
_eronly = .; /* End of read-only data */
.data : { /* Data */
_sdata = .;
*(.data.page_aligned)
*(.data)
. = ALIGN(8);
__start_impls = .;
*(.impls)
KEEP(*(.impls))
. = ALIGN(4);
__stop_impls = .;
*(.data.rel)
*(.data.rel.*)
CONSTRUCTORS
} :text
_edata = .; /* End+1 of .data */
.bss : { /* BSS */
_sbss = .;
*(.bss)
. = ALIGN(1 << 3);
} :text
. = ALIGN(4096);
_ebss = .;
_szbss = _ebss - _sbss;
.initstack : { /* INIT STACK */
_s_initstack = .;
*(.initstack)
. = ALIGN(16);
} :text
. = ALIGN(4096);
_e_initstack = . ;
_szdata = _e_initstack - _sdata;
/* Sections to be discarded */
/DISCARD/ : {
*(.exit.text)
*(.exit.data)
*(.exitcall.exit)
*(.eh_frame)
}
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
}

29
boards/arm/qemu/qemu-armv7a/src/Makefile Normal file
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@ -0,0 +1,29 @@
############################################################################
# boards/arm/qemu/qemu-armv7a/src/Makefile
#
# 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 $(TOPDIR)/Make.defs
CSRCS = qemu_boardinit.c qemu_bringup.c
ifeq ($(CONFIG_BOARDCTL),y)
CSRCS += qemu_appinit.c
endif
include $(TOPDIR)/boards/Board.mk

59
boards/arm/qemu/qemu-armv7a/src/qemu-armv7a.h Normal file
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@ -0,0 +1,59 @@
/****************************************************************************
* boards/arm/qemu/qemu-armv7a/src/qemu-armv7a.h
*
* 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.
*
****************************************************************************/
#ifndef __BOARDS_ARM_QEMU_QEMU_ARMV7A_SRC_QEMU_ARMV7A_H
#define __BOARDS_ARM_QEMU_QEMU_ARMV7A_SRC_QEMU_ARMV7A_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
/****************************************************************************
* Public Types
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
#ifndef __ASSEMBLY__
/****************************************************************************
* Public Functions Definitions
****************************************************************************/
/****************************************************************************
* Name: qemu_bringup
*
* Description:
* Bring up board features
*
****************************************************************************/
#if defined(CONFIG_BOARDCTL) || defined(CONFIG_BOARD_LATE_INITIALIZE)
int qemu_bringup(void);
#endif
#endif /* __ASSEMBLY__ */
#endif /* __BOARDS_ARM_QEMU_QEMU_ARMV7A_SRC_QEMU_ARMV7A_H */

76
boards/arm/qemu/qemu-armv7a/src/qemu_appinit.c Normal file
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@ -0,0 +1,76 @@
/****************************************************************************
* boards/arm/qemu/qemu-armv7a/src/qemu_appinit.c
*
* 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <nuttx/board.h>
#include "qemu-armv7a.h"
#ifdef CONFIG_BOARDCTL
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_app_initialize
*
* Description:
* Perform application specific initialization. This function is never
* called directly from application code, but only indirectly via the
* (non-standard) boardctl() interface using the command BOARDIOC_INIT.
*
* Input Parameters:
* arg - The boardctl() argument is passed to the board_app_initialize()
* implementation without modification. The argument has no
* meaning to NuttX; the meaning of the argument is a contract
* between the board-specific initialization logic and the
* matching application logic. The value could be such things as a
* mode enumeration value, a set of DIP switch switch settings, a
* pointer to configuration data read from a file or serial FLASH,
* or whatever you would like to do with it. Every implementation
* should accept zero/NULL as a default configuration.
*
* Returned Value:
* Zero (OK) is returned on success; a negated errno value is returned on
* any failure to indicate the nature of the failure.
*
****************************************************************************/
int board_app_initialize(uintptr_t arg)
{
UNUSED(arg);
#ifndef CONFIG_BOARD_LATE_INITIALIZE
/* Perform board initialization */
return qemu_bringup();
#else
return OK;
#endif
}
#endif /* CONFIG_BOARDCTL */

113
boards/arm/qemu/qemu-armv7a/src/qemu_boardinit.c Normal file
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@ -0,0 +1,113 @@
/****************************************************************************
* boards/arm/qemu/qemu-armv7a/src/qemu_boardinit.c
*
* 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <nuttx/board.h>
#include "qemu-armv7a.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: qemu_memory_initialize
*
* Description:
* All qemu architectures must provide the following entry point. This
* entry point is called early in the initialization before memory has
* been configured. This board-specific function is responsible for
* configuring any on-board memories.
*
* Logic in qemu_memory_initialize must be careful to avoid using any
* global variables because those will be uninitialized at the time this
* function is called.
*
* Input Parameters:
* None
*
* Returned Value:
* None
*
****************************************************************************/
void qemu_memory_initialize(void)
{
/* SDRAM was initialized by a bootloader in the supported configurations. */
}
/****************************************************************************
* Name: qemu_board_initialize
*
* Description:
* All qemu architectures must provide the following entry point. This
* entry point is called in the initialization phase -- after
* qemu_memory_initialize and after all memory has been configured and
* mapped but before any devices have been initialized.
*
* Input Parameters:
* None
*
* Returned Value:
* None
*
****************************************************************************/
void qemu_board_initialize(void)
{
#ifdef CONFIG_ARCH_LEDS
/* Configure on-board LEDs if LED support has been selected. */
#endif
}
/****************************************************************************
* Name: board_late_initialize
*
* Description:
* If CONFIG_BOARD_LATE_INITIALIZE is selected, then an additional
* initialization call will be performed in the boot-up sequence to a
* function called board_late_initialize(). board_late_initialize() will be
* called immediately after up_intitialize() is called and just before the
* initial application is started. This additional initialization phase
* may be used, for example, to initialize board-specific device drivers.
*
****************************************************************************/
#ifdef CONFIG_BOARD_LATE_INITIALIZE
void board_late_initialize(void)
{
/* Perform board initialization */
qemu_bringup();
}
#endif /* CONFIG_BOARD_LATE_INITIALIZE */

99
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@ -0,0 +1,99 @@
/****************************************************************************
* boards/arm/qemu/qemu-armv7a/src/qemu_bringup.c
*
* 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <syslog.h>
#include <nuttx/fs/fs.h>
#include <nuttx/virtio/virtio-mmio.h>
#include "qemu-armv7a.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define QEMU_VIRTIO_MMIO_BASE 0x0a000000
#define QEMU_VIRTIO_MMIO_REGSIZE 0x200
#define QEMU_VIRTIO_MMIO_IRQ 48
#define QEMU_VIRTIO_MMIO_NUM 4
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: qemu_virtio_register_mmio_devices
****************************************************************************/
#ifdef CONFIG_DRIVERS_VIRTIO_MMIO
static void qemu_virtio_register_mmio_devices(void)
{
uintptr_t virtio = (uintptr_t)QEMU_VIRTIO_MMIO_BASE;
size_t size = QEMU_VIRTIO_MMIO_REGSIZE;
int irq = QEMU_VIRTIO_MMIO_IRQ;
int i;
for (i = 0; i < QEMU_VIRTIO_MMIO_NUM; i++)
{
virtio_register_mmio_device((void *)(virtio + size * i), irq + i);
}
}
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: imx_bringup
*
* Description:
* Bring up board features
*
****************************************************************************/
int qemu_bringup(void)
{
int ret;
#ifdef CONFIG_FS_PROCFS
/* Mount the procfs file system */
ret = nx_mount(NULL, "/proc", "procfs", 0, NULL);
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: Failed to mount procfs at /proc: %d\n", ret);
}
#endif
#ifdef CONFIG_DRIVERS_VIRTIO_MMIO
qemu_virtio_register_mmio_devices();
#endif
UNUSED(ret);
return OK;
}