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arch/bcm2711, boards/raspberry-pi-4b: Add preliminary support for the BCM2711 and Raspberry Pi 4B.
Includes a Mini-UART NSH console for the 4B, tested on the 4GB RAM model. Part of an I2C driver which can only read, boiler-plate for a SPI driver, and a GPIO driver with limited pins. Some tools are present for automatically fetching the boot files and creating the `config.txt` file based on selected Kconfig options.
This commit is contained in:
Matteo Golin
Xiang Xiao
@@ -0,0 +1,41 @@
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#
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# For a description of the syntax of this configuration file,
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# see the file kconfig-language.txt in the NuttX tools repository.
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#
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if ARCH_BOARD_RASPBERRYPI_4B
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choice
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prompt "Raspberry Pi 4B RAM size"
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default RPI4B_RAM_4GB
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config RPI4B_RAM_1GB
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bool "1GB RAM"
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---help---
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Support for the 1GB variant of the Raspberry Pi 4B.
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config RPI4B_RAM_2GB
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bool "2GB RAM"
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---help---
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Support for the 2GB variant of the Raspberry Pi 4B.
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config RPI4B_RAM_4GB
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bool "4GB RAM"
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---help---
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Support for the 4GB variant of the Raspberry Pi 4B.
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config RPI4B_RAM_8GB
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bool "8GB RAM"
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---help---
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Support for the 8GB variant of the Raspberry Pi 4B.
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endchoice # Raspberry Pi 4B RAM size
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config RPI4B_DEBUG_BOOT
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bool "Raspberry Pi 4B bootloader debug output"
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default n
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---help---
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Enables the debug output of the Raspberry Pi 4B bootloader.
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endif # ARCH_BOARD_RASPBERRYPI_4B
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@@ -0,0 +1,61 @@
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#
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# This file is autogenerated: PLEASE DO NOT EDIT IT.
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#
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# You can use "make menuconfig" to make any modifications to the installed .config file.
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# You can then do "make savedefconfig" to generate a new defconfig file that includes your
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# modifications.
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#
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CONFIG_ARCH="arm64"
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CONFIG_ARCH_ARM64=y
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CONFIG_ARCH_BOARD="raspberrypi-4b"
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CONFIG_ARCH_BOARD_RASPBERRYPI_4B=y
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CONFIG_ARCH_CHIP="bcm2711"
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CONFIG_ARCH_CHIP_BCM2711=y
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CONFIG_ARCH_EARLY_PRINT=y
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CONFIG_ARCH_INTERRUPTSTACK=4096
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CONFIG_BUILTIN=y
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CONFIG_DEBUG_ASSERTIONS=y
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CONFIG_DEBUG_FEATURES=y
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CONFIG_DEBUG_FULLOPT=y
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CONFIG_DEBUG_SCHED=y
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CONFIG_DEBUG_SCHED_ERROR=y
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CONFIG_DEBUG_SCHED_WARN=y
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CONFIG_DEBUG_SYMBOLS=y
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CONFIG_DEFAULT_TASK_STACKSIZE=8192
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CONFIG_DEV_ZERO=y
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CONFIG_EXAMPLES_HELLO=y
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CONFIG_EXAMPLES_LEDS=y
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CONFIG_EXPERIMENTAL=y
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CONFIG_FS_PROCFS=y
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CONFIG_FS_ROMFS=y
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CONFIG_HAVE_CXX=y
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CONFIG_HAVE_CXXINITIALIZE=y
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CONFIG_IDLETHREAD_STACKSIZE=8192
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CONFIG_INIT_ENTRYPOINT="nsh_main"
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CONFIG_INTELHEX_BINARY=y
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CONFIG_NSH_ARCHINIT=y
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CONFIG_NSH_BUILTIN_APPS=y
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CONFIG_NSH_FILEIOSIZE=512
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CONFIG_NSH_READLINE=y
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CONFIG_PREALLOC_TIMERS=4
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CONFIG_PTHREAD_STACK_MIN=8192
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CONFIG_RAMLOG=y
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CONFIG_RAM_SIZE=4227858432
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CONFIG_RAM_START=0x00000000
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CONFIG_RAW_BINARY=y
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CONFIG_READLINE_CMD_HISTORY=y
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CONFIG_RR_INTERVAL=200
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CONFIG_SCHED_HPWORK=y
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CONFIG_SCHED_HPWORKPRIORITY=192
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CONFIG_SPINLOCK=y
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CONFIG_STACK_COLORATION=y
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CONFIG_START_MONTH=11
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CONFIG_START_YEAR=2022
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CONFIG_SYMTAB_ORDEREDBYNAME=y
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CONFIG_SYSTEM_NSH=y
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CONFIG_SYSTEM_SYSTEM=y
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CONFIG_SYSTEM_TIME64=y
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CONFIG_TESTING_GETPRIME=y
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CONFIG_TESTING_OSTEST=y
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CONFIG_USEC_PER_TICK=1000
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CONFIG_USERLED=y
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@@ -0,0 +1,42 @@
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/****************************************************************************
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* boards/arm64/bcm2711/raspberrypi-4b/include/board.h
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*
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* Author: Matteo Golin <matteo.golin@gmail.com>
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
|
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* contributor license agreements. See the NOTICE file distributed with
|
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* this work for additional information regarding copyright ownership. The
|
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
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* "License"); you may not use this file except in compliance with the
|
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* License. You may obtain a copy of the License at
|
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
|
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* Unless required by applicable law or agreed to in writing, software
|
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __BOARDS_ARM64_BCM2711_RPI4B_INCLUDE_BOARD_H
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#define __BOARDS_ARM64_BCM2711_RPI4B_INCLUDE_BOARD_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* TODO: define all the GPIO pins properly */
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#define BOARD_NGPIOOUT 1
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#define BOARD_NGPIOIN 1
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#define BOARD_NGPIOINT 0
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#endif /* __BOARDS_ARM64_BCM2711_RPI4B_INCLUDE_BOARD_H */
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@@ -0,0 +1,49 @@
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############################################################################
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# boards/arm64/bcm2711/raspberrypi-4b/scripts/Make.defs
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership. The
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# 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
|
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# License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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############################################################################
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include $(TOPDIR)/.config
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include $(TOPDIR)/tools/Config.mk
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include $(TOPDIR)/tools/bcm2711/Config.mk
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include $(TOPDIR)/arch/arm64/src/Toolchain.defs
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LDSCRIPT = dramboot.ld
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ARCHSCRIPT += $(BOARD_DIR)$(DELIM)scripts$(DELIM)$(LDSCRIPT)
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CFLAGS := $(ARCHCFLAGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -pipe
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CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
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CXXFLAGS := $(ARCHCXXFLAGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -pipe
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CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
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CPPFLAGS := $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS)
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AFLAGS := $(CFLAGS) -D__ASSEMBLY__
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# NXFLAT module definitions
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NXFLATLDFLAGS1 = -r -d -warn-common
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NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)$(DELIM)binfmt$(DELIM)libnxflat$(DELIM)gnu-nxflat-pcrel.ld -no-check-sections
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LDNXFLATFLAGS = -e main -s 2048
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# ELF module definitions
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CELFFLAGS = $(CFLAGS) -mlong-calls # --target1-abs
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CXXELFFLAGS = $(CXXFLAGS) -mlong-calls # --target1-abs
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LDELFFLAGS = -r -e main
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LDELFFLAGS += -T $(call CONVERT_PATH,$(TOPDIR)/binfmt/libelf/gnu-elf.ld)
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@@ -0,0 +1,129 @@
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/****************************************************************************
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* boards/arm64/bcm2711/raspberrypi-4b/scripts/dramboot.ld
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
|
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* 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
|
||||
*
|
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* http://www.apache.org/licenses/LICENSE-2.0
|
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*
|
||||
* 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
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* under the License.
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*
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****************************************************************************/
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OUTPUT_ARCH(aarch64) /* Architecture to use */
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ENTRY(__start) /* Entry point for the program */
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PHDRS
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{
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text PT_LOAD ;
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}
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SECTIONS
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{
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. = 0x480000; /* Kernel load address for aarch64 */
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_start = .;
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.text : {
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_stext = .; /* Text section */
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*(.start .start.*) /* Place __start here */
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*(.text)
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*(.text.cold)
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*(.text.unlikely)
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*(.fixup)
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*(.gnu.warning)
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} :text = 0x9090
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. = ALIGN(4096);
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.init_section : {
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_sinit = ABSOLUTE(.);
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KEEP(*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
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KEEP(*(.init_array .ctors))
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_einit = ABSOLUTE(.);
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}
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. = ALIGN(4096);
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.vector : {
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_vector_start = .;
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KEEP(*(.exc_vector_table))
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KEEP(*(".exc_vector_table.*"))
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KEEP(*(.vectors))
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_vector_end = .;
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} :text
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. = ALIGN(4096);
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_etext = .; /* End_1 of .text */
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_sztext = _etext - _stext;
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. = ALIGN(4096);
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.rodata : {
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_srodata = .; /* Read-only data */
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*(.rodata)
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*(.rodata.*)
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*(.data.rel.ro)
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*(.data.rel.ro.*)
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} :text
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. = ALIGN(4096);
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_erodata = .; /* End of read-only data */
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_szrodata = _erodata - _srodata;
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_eronly = .; /* End of read-only data */
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. = ALIGN(4096);
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.data : { /* Data */
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_sdata = .;
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*(.data.page_aligned)
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*(.data)
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. = ALIGN(8);
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*(.data.rel)
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*(.data.rel.*)
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CONSTRUCTORS
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} :text
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_edata = .; /* End+1 of .data */
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.bss : { /* BSS */
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. = ALIGN(8);
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_sbss = .;
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*(.bss)
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. = ALIGN(8);
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} :text
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. = ALIGN(4096);
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_ebss = .;
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_szbss = _ebss - _sbss;
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.initstack : { /* INIT STACK */
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_s_initstack = .;
|
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*(.initstack)
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. = ALIGN(16);
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} :text
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. = ALIGN(4096);
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_e_initstack = . ;
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g_idle_topstack = . ;
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_szdata = _e_initstack - _sdata;
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|
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/* Sections to be discarded */
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/DISCARD/ : {
|
||||
*(.exit.text)
|
||||
*(.exit.data)
|
||||
*(.exitcall.exit)
|
||||
*(.eh_frame)
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}
|
||||
|
||||
/* Stabs debugging sections. */
|
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.stab 0 : { *(.stab) }
|
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.stabstr 0 : { *(.stabstr) }
|
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.stab.excl 0 : { *(.stab.excl) }
|
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.stab.exclstr 0 : { *(.stab.exclstr) }
|
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.stab.index 0 : { *(.stab.index) }
|
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.stab.indexstr 0 : { *(.stab.indexstr) }
|
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.comment 0 : { *(.comment) }
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}
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@@ -0,0 +1,41 @@
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############################################################################
|
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# boards/arm64/bcm2711/raspberrypi-4b/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.
|
||||
#
|
||||
############################################################################
|
||||
|
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include $(TOPDIR)/Make.defs
|
||||
|
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CSRCS += rpi4b_boardinitialize.c rpi4b_bringup.c
|
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|
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ifeq ($(CONFIG_BOARDCTL),y)
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CSRCS += rpi4b_appinit.c
|
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endif
|
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|
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ifeq ($(CONFIG_DEV_GPIO),y)
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CSRCS += rpi4b_gpio.c
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endif
|
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|
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ifeq ($(CONFIG_BCM2711_I2C_DRIVER),y)
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CSRCS += bcm2711_i2cdev.c
|
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endif
|
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|
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include $(TOPDIR)/boards/Board.mk
|
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|
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.PHONY: distclean
|
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distclean::
|
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$(call DELFILE, ${TOPDIR}${DELIM}config.txt)
|
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@@ -0,0 +1,75 @@
|
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/****************************************************************************
|
||||
* boards/arm64/bcm2711/raspberrypi-4b/src/bcm2711_i2cdev.c
|
||||
*
|
||||
* Author: Matteo Golin <matteo.golin@gmail.com>
|
||||
*
|
||||
* 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 <debug.h>
|
||||
#include <errno.h>
|
||||
#include <stdio.h>
|
||||
|
||||
#include "bcm2711_i2c.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: board_i2cdev_initialize
|
||||
*
|
||||
* Description:
|
||||
* Initialize and register the I2C character driver for the specified I2C
|
||||
* port/bus number.
|
||||
* NOTE: Driver will be registered at /dev/i2c[`port`]
|
||||
*
|
||||
* Input parameters:
|
||||
* port - The I2C bus number/port number to register the driver for.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
int bcm2711_i2cdev_initialize(int port)
|
||||
{
|
||||
int ret;
|
||||
struct i2c_master_s *i2c;
|
||||
|
||||
i2cinfo("Initializing /dev/i2c%d..\n", port);
|
||||
|
||||
/* Initialize I2C device */
|
||||
|
||||
i2c = bcm2711_i2cbus_initialize(port);
|
||||
if (!i2c)
|
||||
{
|
||||
i2cerr("ERROR: Failed to initialize I2C bus %d.\n", port);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
ret = i2c_register(i2c, port);
|
||||
if (ret < 0)
|
||||
{
|
||||
i2cerr("ERROR: Failed to register /dev/i2c%d: %d\n", port, ret);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
@@ -0,0 +1,43 @@
|
||||
/****************************************************************************
|
||||
* boards/arm64/bcm2711/raspberrypi-4b/src/bcm2711_i2cdev.h
|
||||
*
|
||||
* Author: Matteo Golin <matteo.golin@gmail.com>
|
||||
*
|
||||
* 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_ARM64_BCM2711_RASPBERRYPI_4B_INCLUDE_BCM2711_I2CDEV_H
|
||||
#define __BOARDS_ARM64_BCM2711_RASPBERRYPI_4B_INCLUDE_BCM2711_I2CDEV_H
|
||||
|
||||
/****************************************************************************
|
||||
* Name: board_i2cdev_initialize
|
||||
*
|
||||
* Description:
|
||||
* Initialize and register the I2C character driver for the specified I2C
|
||||
* port/bus number.
|
||||
* NOTE: Driver will be registered at /dev/i2c[`port`]
|
||||
*
|
||||
* Input parameters:
|
||||
* port - The I2C bus number/port number to register the driver for.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#if defined(CONFIG_BCM2711_I2C_DRIVER)
|
||||
int bcm2711_i2cdev_initialize(int port);
|
||||
#endif /* defined(BCM2711_I2C_DRIVER) */
|
||||
|
||||
#endif /* __BOARDS_ARM64_BCM2711_RASPBERRYPI_4B_INCLUDE_BCM2711_I2CDEV_H */
|
||||
@@ -0,0 +1,52 @@
|
||||
/****************************************************************************
|
||||
* boards/arm64/bcm2711/raspberrypi-4b/src/rpi4b.h
|
||||
*
|
||||
* Author: Matteo Golin
|
||||
*
|
||||
* 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_ARM64_BCM2711_RASPBERRYPI_4B_SRC_RPI4B_H
|
||||
#define __BOARDS_ARM64_BCM2711_RASPBERRYPI_4B_SRC_RPI4B_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: rpi4b_bringup
|
||||
*
|
||||
* Description:
|
||||
* Bring up board features
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#if defined(CONFIG_BOARDCTL) || defined(CONFIG_BOARD_LATE_INITIALIZE)
|
||||
int rpi4b_bringup(void);
|
||||
#endif
|
||||
|
||||
#if defined(CONFIG_DEV_GPIO)
|
||||
int bcm2711_dev_gpio_init(void);
|
||||
#endif /* defined(CONFIG_DEV_GPIO) */
|
||||
|
||||
#endif /* __BOARDS_ARM64_BCM2711_RASPBERRYPI_4B_SRC_RPI4B_H */
|
||||
@@ -0,0 +1,89 @@
|
||||
/****************************************************************************
|
||||
* boards/arm64/bcm2711/raspberrypi-4b/src/rpi4b_appinit.c
|
||||
*
|
||||
* Author: Matteo Golin <matteo.golin@gmail.com>
|
||||
*
|
||||
* 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 "rpi4b.h"
|
||||
#include <debug.h>
|
||||
#include <nuttx/board.h>
|
||||
#include <nuttx/config.h>
|
||||
#include <nuttx/fs/fs.h>
|
||||
#include <sys/types.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);
|
||||
int ret = OK;
|
||||
|
||||
#ifdef CONFIG_FS_PROCFS
|
||||
/* Mount the proc file system */
|
||||
|
||||
ret = nx_mount(NULL, "/proc", "procfs", 0, NULL);
|
||||
if (ret < 0)
|
||||
{
|
||||
_err("ERROR: Failed to mount procfs at /proc: %d\n", ret);
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifndef CONFIG_BOARD_LATE_INITIALIZE
|
||||
/* Perform board initialization */
|
||||
|
||||
ret = rpi4b_bringup();
|
||||
#endif
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
#endif /* CONFIG_BOARDCTL */
|
||||
@@ -0,0 +1,108 @@
|
||||
/****************************************************************************
|
||||
* boards/arm64/bcm2711/raspberrypi-4b/src/rpi4b_boardinitialize.c
|
||||
*
|
||||
* Author: Matteo Golin
|
||||
*
|
||||
* 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 "rpi4b.h"
|
||||
#include <nuttx/board.h>
|
||||
#include <nuttx/config.h>
|
||||
#include <stdint.h>
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: bcm2711_memory_initialize
|
||||
*
|
||||
* Description:
|
||||
* All BCM2711 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 a64_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 bcm2711_memory_initialize(void)
|
||||
{
|
||||
/* TODO */
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: bcm2711_board_initialize
|
||||
*
|
||||
* Description:
|
||||
* All BCM2711 architectures must provide the following entry point. This
|
||||
* entry point is called in the initialization phase -- after
|
||||
* bcm2711_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 bcm2711_board_initialize(void)
|
||||
{
|
||||
#ifdef CONFIG_ARCH_LEDS
|
||||
/* Configure on-board LEDs if LED support has been selected. */
|
||||
|
||||
board_autoled_initialize();
|
||||
#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_initialize() 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 */
|
||||
|
||||
rpi4b_bringup();
|
||||
}
|
||||
#endif /* CONFIG_BOARD_LATE_INITIALIZE */
|
||||
@@ -0,0 +1,123 @@
|
||||
/****************************************************************************
|
||||
* boards/arm64/bcm2711/raspberrypi-4b/src/rpi4b_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 "rpi4b.h"
|
||||
#include <nuttx/config.h>
|
||||
#include <sys/types.h>
|
||||
#include <syslog.h>
|
||||
|
||||
#if defined(CONFIG_BCM2711_I2C_DRIVER)
|
||||
#include "bcm2711_i2cdev.h"
|
||||
#endif /* defined(CONFIG_BCM2711_I2C) */
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: rpi4b_bringup
|
||||
*
|
||||
* Description:
|
||||
* Bring up board features
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
int rpi4b_bringup(void)
|
||||
{
|
||||
int ret = OK;
|
||||
|
||||
/* Initialize GPIO driver. */
|
||||
|
||||
#if defined(CONFIG_DEV_GPIO)
|
||||
ret = bcm2711_dev_gpio_init();
|
||||
if (ret < 0)
|
||||
{
|
||||
syslog(LOG_ERR, "Failed to initialize GPIO driver: %d\n.", ret);
|
||||
}
|
||||
#endif // defined(CONFIG_DEV_GPIO)
|
||||
|
||||
/* Initialize I2C interfaces. */
|
||||
|
||||
#if defined(CONFIG_BCM2711_I2C)
|
||||
|
||||
#if defined(CONFIG_BCM2711_I2C0)
|
||||
ret = bcm2711_i2cdev_initialize(0);
|
||||
if (ret < 0)
|
||||
{
|
||||
syslog(LOG_ERR, "Failed to initialize I2C0: %d\n", ret);
|
||||
}
|
||||
#endif /* defined(CONFIG_BCM2711_I2C0) */
|
||||
|
||||
#if defined(CONFIG_BCM2711_I2C1)
|
||||
ret = bcm2711_i2cdev_initialize(1);
|
||||
if (ret < 0)
|
||||
{
|
||||
syslog(LOG_ERR, "Failed to initialize I2C1: %d\n", ret);
|
||||
}
|
||||
#endif /* defined(CONFIG_BCM2711_I2C1) */
|
||||
|
||||
#if defined(CONFIG_BCM2711_I2C2)
|
||||
ret = bcm2711_i2cdev_initialize(2);
|
||||
if (ret < 0)
|
||||
{
|
||||
syslog(LOG_ERR, "Failed to initialize I2C2: %d\n", ret);
|
||||
}
|
||||
#endif /* defined(CONFIG_BCM2711_I2C2) */
|
||||
|
||||
#if defined(CONFIG_BCM2711_I2C3)
|
||||
ret = bcm2711_i2cdev_initialize(3);
|
||||
if (ret < 0)
|
||||
{
|
||||
syslog(LOG_ERR, "Failed to initialize I2C3: %d\n", ret);
|
||||
}
|
||||
#endif /* defined(CONFIG_BCM2711_I2C3) */
|
||||
|
||||
#if defined(CONFIG_BCM2711_I2C4)
|
||||
ret = bcm2711_i2cdev_initialize(4);
|
||||
if (ret < 0)
|
||||
{
|
||||
syslog(LOG_ERR, "Failed to initialize I2C4: %d\n", ret);
|
||||
}
|
||||
#endif /* defined(CONFIG_BCM2711_I2C4) */
|
||||
|
||||
#if defined(CONFIG_BCM2711_I2C5)
|
||||
ret = bcm2711_i2cdev_initialize(5);
|
||||
if (ret < 0)
|
||||
{
|
||||
syslog(LOG_ERR, "Failed to initialize I2C5: %d\n", ret);
|
||||
}
|
||||
#endif /* defined(CONFIG_BCM2711_I2C5) */
|
||||
|
||||
#if defined(CONFIG_BCM2711_I2C6)
|
||||
ret = bcm2711_i2cdev_initialize(6);
|
||||
if (ret < 0)
|
||||
{
|
||||
syslog(LOG_ERR, "Failed to initialize I2C6: %d\n", ret);
|
||||
}
|
||||
#endif /* defined(CONFIG_BCM2711_I2C6) */
|
||||
|
||||
#endif /* defined(CONFIG_BCM2711_I2C) */
|
||||
|
||||
return ret;
|
||||
}
|
||||
@@ -0,0 +1,340 @@
|
||||
/****************************************************************************
|
||||
* boards/arm64/bcm2711/raspberrypi-4b/src/rpi4b_gpio.c
|
||||
*
|
||||
* Author: Matteo Golin <matteo.golin@gmail.com>
|
||||
*
|
||||
* 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 <arch/irq.h>
|
||||
#include <assert.h>
|
||||
#include <debug.h>
|
||||
#include <nuttx/irq.h>
|
||||
#include <sys/types.h>
|
||||
#include <syslog.h>
|
||||
|
||||
#include <nuttx/ioexpander/gpio.h>
|
||||
|
||||
#include <arch/board/board.h>
|
||||
|
||||
#include "bcm2711_gpio.h"
|
||||
#include "chip.h"
|
||||
|
||||
#if defined(CONFIG_DEV_GPIO) && !defined(CONFIG_GPIO_LOWER_HALF)
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/* Input pins */
|
||||
|
||||
#define GPIO_IN1 16
|
||||
|
||||
/* Output pins */
|
||||
|
||||
#define GPIO_OUT1 26
|
||||
|
||||
/* Interrupt pins */
|
||||
|
||||
/* TODO: why can't you select interrupt event type??? */
|
||||
|
||||
/****************************************************************************
|
||||
* Private Types
|
||||
****************************************************************************/
|
||||
|
||||
/* GPIO device on the BCM2711 */
|
||||
|
||||
struct bcm2711_gpio_dev_s
|
||||
{
|
||||
struct gpio_dev_s gpio; /* Underlying GPIO device */
|
||||
uint8_t id; /* The index of the pin in its list. */
|
||||
};
|
||||
|
||||
/* GPIO device with interrupt capabilities on the BCM2711 */
|
||||
|
||||
struct bcm2711_gpioint_dev_s
|
||||
{
|
||||
struct bcm2711_gpio_dev_s bcm2711_gpio; /* BCM2711 GPIO device */
|
||||
};
|
||||
|
||||
/****************************************************************************
|
||||
* Private Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
#if BOARD_NGPIOOUT > 0
|
||||
static int gpout_read(struct gpio_dev_s *dev, bool *value);
|
||||
static int gpout_write(struct gpio_dev_s *dev, bool value);
|
||||
#endif
|
||||
|
||||
#if BOARD_NGPIOIN > 0
|
||||
static int gpin_read(struct gpio_dev_s *dev, bool *value);
|
||||
#endif
|
||||
|
||||
#if BOARD_NGPIOINT > 0
|
||||
static int gpint_read(struct gpio_dev_s *dev, bool *value);
|
||||
static int gpint_attach(struct gpio_dev_s *dev, pin_interrupt_t callback);
|
||||
static int gpint_enable(struct gpio_dev_s *dev, bool enable);
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
#if BOARD_NGPIOOUT > 0
|
||||
|
||||
/* GPIO operations for output pins. */
|
||||
|
||||
static const struct gpio_operations_s gpout_ops =
|
||||
{
|
||||
.go_read = gpout_read,
|
||||
.go_write = gpout_write,
|
||||
.go_attach = NULL,
|
||||
.go_enable = NULL,
|
||||
};
|
||||
|
||||
/* This array maps the GPIO pins used as OUTPUT */
|
||||
|
||||
static const uint32_t g_gpiooutputs[BOARD_NGPIOOUT] =
|
||||
{
|
||||
GPIO_OUT1,
|
||||
};
|
||||
|
||||
/* GPIO output pin devices */
|
||||
|
||||
static struct bcm2711_gpio_dev_s g_gpout[BOARD_NGPIOOUT];
|
||||
|
||||
#endif /* BOARD_NGPIOOUT > 0 */
|
||||
|
||||
#if BOARD_NGPIOIN > 0
|
||||
|
||||
/* GPIO operations for input pins. */
|
||||
|
||||
static const struct gpio_operations_s gpin_ops =
|
||||
{
|
||||
.go_read = gpin_read,
|
||||
.go_write = NULL,
|
||||
.go_attach = NULL,
|
||||
.go_enable = NULL,
|
||||
};
|
||||
|
||||
/* This array maps the GPIO pins used as INTERRUPT INPUTS */
|
||||
|
||||
static const uint32_t g_gpioinputs[BOARD_NGPIOIN] =
|
||||
{
|
||||
GPIO_IN1,
|
||||
};
|
||||
|
||||
/* GPIO input pin devices */
|
||||
|
||||
static struct bcm2711_gpio_dev_s g_gpin[BOARD_NGPIOIN];
|
||||
|
||||
#endif /* BOARD_NGPIOIN > 0 */
|
||||
|
||||
#if BOARD_NGPIOINT > 0
|
||||
|
||||
#warn "Missing functionality for interrupt GPIO pins."
|
||||
|
||||
/* GPIO operations for interrupt pins. */
|
||||
|
||||
static const struct gpio_operations_s gpint_ops =
|
||||
{
|
||||
.go_read = gpint_read,
|
||||
.go_write = NULL,
|
||||
.go_attach = gpint_attach,
|
||||
.go_enable = gpint_enable,
|
||||
};
|
||||
|
||||
/* This array maps the GPIO pins used as INTERRUPT INPUTS */
|
||||
|
||||
static const uint32_t g_gpiointinputs[BOARD_NGPIOINT] =
|
||||
{
|
||||
GPIO_IRQPIN1,
|
||||
};
|
||||
|
||||
/* GPIO interrupt pin devices */
|
||||
|
||||
static struct bcm2711_gpioint_dev_s g_gpint[BOARD_NGPIOINT];
|
||||
|
||||
#endif /* BOARD_NGPIOINT > 0 */
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
#if BOARD_NGPIOOUT > 0
|
||||
|
||||
/****************************************************************************
|
||||
* Name: gpout_read
|
||||
*
|
||||
* Description:
|
||||
* Read the output pin's current status (0 or 1).
|
||||
*
|
||||
* Input parameters:
|
||||
* dev - The GPIO device structure.
|
||||
* value - A pointer to the location to store the pin status.
|
||||
****************************************************************************/
|
||||
|
||||
static int gpout_read(struct gpio_dev_s *dev, bool *value)
|
||||
{
|
||||
struct bcm2711_gpio_dev_s *bcm2711gpio =
|
||||
(struct bcm2711_gpio_dev_s *)(dev);
|
||||
|
||||
DEBUGASSERT(bcm2711gpio != NULL);
|
||||
DEBUGASSERT(value != NULL);
|
||||
DEBUGASSERT(bcm2711gpio->id < BOARD_NGPIOOUT);
|
||||
|
||||
*value = bcm2711_gpio_pin_get(g_gpiooutputs[bcm2711gpio->id]);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: gpout_write
|
||||
*
|
||||
* Description:
|
||||
* Write a value to a GPIO output pin.
|
||||
*
|
||||
* Input parameters:
|
||||
* dev - The GPIO device struct of the pin to write to.
|
||||
* value - The value to write to the pin.
|
||||
****************************************************************************/
|
||||
|
||||
static int gpout_write(struct gpio_dev_s *dev, bool value)
|
||||
{
|
||||
struct bcm2711_gpio_dev_s *bcm2711gpio =
|
||||
(struct bcm2711_gpio_dev_s *)(dev);
|
||||
|
||||
DEBUGASSERT(bcm2711gpio != NULL);
|
||||
DEBUGASSERT(bcm2711gpio->id < BOARD_NGPIOOUT);
|
||||
|
||||
gpioinfo("Writing %u to pin %u\n", value, g_gpiooutputs[bcm2711gpio->id]);
|
||||
bcm2711_gpio_pin_set(g_gpiooutputs[bcm2711gpio->id], value);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#endif /* BOARD_NGPIOOUT > 0 */
|
||||
|
||||
#if BOARD_NGPIOIN > 0
|
||||
|
||||
/****************************************************************************
|
||||
* Name: gpin_read
|
||||
*
|
||||
* Description:
|
||||
* Read the input pin's current status (0 or 1).
|
||||
*
|
||||
* Input parameters:
|
||||
* dev - The GPIO device structure.
|
||||
* value - A pointer to the location to store the pin status.
|
||||
****************************************************************************/
|
||||
|
||||
static int gpin_read(struct gpio_dev_s *dev, bool *value)
|
||||
{
|
||||
struct bcm2711_gpio_dev_s *bcm2711gpio =
|
||||
(struct bcm2711_gpio_dev_s *)(dev);
|
||||
|
||||
DEBUGASSERT(bcm2711gpio != NULL);
|
||||
DEBUGASSERT(value != NULL);
|
||||
DEBUGASSERT(bcm2711gpio->id < BOARD_NGPIOIN);
|
||||
|
||||
*value = bcm2711_gpio_pin_get(g_gpioinputs[bcm2711gpio->id]);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#endif /* BOARD_NGPIOIN > 0 */
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: bcm2711_dev_gpio_init
|
||||
****************************************************************************/
|
||||
|
||||
int bcm2711_dev_gpio_init(void)
|
||||
{
|
||||
int i;
|
||||
int ret = OK;
|
||||
|
||||
/* Register output pins. */
|
||||
|
||||
#if BOARD_NGPIOOUT > 0
|
||||
for (i = 0; i < BOARD_NGPIOOUT; i++)
|
||||
{
|
||||
/* Setup and register the GPIO pin */
|
||||
|
||||
g_gpout[i].gpio.gp_pintype = GPIO_OUTPUT_PIN;
|
||||
g_gpout[i].gpio.gp_ops = &gpout_ops;
|
||||
g_gpout[i].id = i;
|
||||
ret = gpio_pin_register(&g_gpout[i].gpio, g_gpiooutputs[i]);
|
||||
if (ret < 0)
|
||||
{
|
||||
gpioerr("Failed to register output pin %d (BCM2711 #%u): %d\n", i,
|
||||
g_gpiooutputs[i], ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Configure the pins that will be used as output.
|
||||
* They will start low and have no pull-up or pull-down resistors.
|
||||
*/
|
||||
|
||||
bcm2711_gpio_set_pulls(g_gpiooutputs[i], false, false);
|
||||
bcm2711_gpio_set_func(g_gpiooutputs[i], BCM_GPIO_OUTPUT);
|
||||
bcm2711_gpio_pin_set(g_gpiooutputs[i], false);
|
||||
}
|
||||
#endif
|
||||
|
||||
/* Register input pins. */
|
||||
|
||||
#if BOARD_NGPIOIN > 0
|
||||
for (i = 0; i < BOARD_NGPIOIN; i++)
|
||||
{
|
||||
/* Setup and register the GPIO pin */
|
||||
|
||||
g_gpin[i].gpio.gp_pintype = GPIO_INPUT_PIN;
|
||||
g_gpin[i].gpio.gp_ops = &gpin_ops;
|
||||
g_gpin[i].id = i;
|
||||
ret = gpio_pin_register(&g_gpin[i].gpio, g_gpioinputs[i]);
|
||||
if (ret < 0)
|
||||
{
|
||||
gpioerr("Failed to register input pin %d (BCM2711 #%u): %d\n", i,
|
||||
g_gpioinputs[i], ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Configure the pins that will be used as INPUT.
|
||||
* They will have pull-up resistors.
|
||||
*/
|
||||
|
||||
bcm2711_gpio_set_func(g_gpioinputs[i], BCM_GPIO_INPUT);
|
||||
bcm2711_gpio_set_pulls(g_gpioinputs[i], true, false);
|
||||
|
||||
/* TODO: pull-up or pull-down should be configurable per pin */
|
||||
}
|
||||
#endif
|
||||
|
||||
return OK;
|
||||
}
|
||||
|
||||
#endif /* defined(CONFIG_DEV_GPIO) && !defined(CONFIG_GPIO_LOWER_HALF) */
|
||||
Reference in New Issue
Block a user