Commit 9b799b78 authored by Maxime Coquelin's avatar Maxime Coquelin Committed by Arnd Bergmann

ARM: Add STM32 family machine

STMicrolectronics's STM32 series is a family of Cortex-M
microcontrollers. It is used in various applications, and
proposes a wide range of peripherals.
Tested-by: default avatarChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: default avatarMaxime Coquelin <mcoquelin.stm32@gmail.com>
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parent 7448adca
STM32 ARM Linux Overview
========================
Introduction
------------
The STMicroelectronics family of Cortex-M based MCUs are supported by the
'STM32' platform of ARM Linux. Currently only the STM32F429 is supported.
Configuration
-------------
A generic configuration is provided for STM32 family, and can be used as the
default by
make stm32_defconfig
Layout
------
All the files for multiple machine families are located in the platform code
contained in arch/arm/mach-stm32
There is a generic board board-dt.c in the mach folder which support
Flattened Device Tree, which means, it works with any compatible board with
Device Trees.
Document Author
---------------
Maxime Coquelin <mcoquelin.stm32@gmail.com>
STM32F429 Overview
==================
Introduction
------------
The STM32F429 is a Cortex-M4 MCU aimed at various applications.
It features:
- ARM Cortex-M4 up to 180MHz with FPU
- 2MB internal Flash Memory
- External memory support through FMC controller (PSRAM, SDRAM, NOR, NAND)
- I2C, SPI, SAI, CAN, USB OTG, Ethernet controllers
- LCD controller & Camera interface
- Cryptographic processor
Resources
---------
Datasheet and reference manual are publicly available on ST website:
- http://www.st.com/web/en/catalog/mmc/FM141/SC1169/SS1577/LN1806?ecmp=stm32f429-439_pron_pr-ces2014_nov2013
Document Author
---------------
Maxime Coquelin <mcoquelin.stm32@gmail.com>
......@@ -758,6 +758,24 @@ config ARCH_OMAP1
help
Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
config ARCH_STM32
bool "STMicrolectronics STM32"
depends on !MMU
select ARCH_HAS_RESET_CONTROLLER
select ARM_NVIC
select ARMV7M_SYSTICK
select AUTO_ZRELADDR
select CLKSRC_OF
select COMMON_CLK
select CPU_V7M
select GENERIC_CLOCKEVENTS
select NO_IOPORT_MAP
select RESET_CONTROLLER
select SPARSE_IRQ
select USE_OF
help
Support for STMicroelectronics STM32 processors.
endchoice
menu "Multiple platform selection"
......
......@@ -196,6 +196,7 @@ machine-$(CONFIG_ARCH_SHMOBILE) += shmobile
machine-$(CONFIG_ARCH_SIRF) += prima2
machine-$(CONFIG_ARCH_SOCFPGA) += socfpga
machine-$(CONFIG_ARCH_STI) += sti
machine-$(CONFIG_ARCH_STM32) += stm32
machine-$(CONFIG_ARCH_SUNXI) += sunxi
machine-$(CONFIG_ARCH_TEGRA) += tegra
machine-$(CONFIG_ARCH_U300) += u300
......
# Empty file waiting for deletion once Makefile.boot isn't needed any more.
# Patch waits for application at
# http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=7889/1 .
/*
* Copyright (C) Maxime Coquelin 2015
* Author: Maxime Coquelin <mcoquelin.stm32@gmail.com>
* License terms: GNU General Public License (GPL), version 2
*/
#include <linux/kernel.h>
#include <asm/v7m.h>
#include <asm/mach/arch.h>
static const char *const stm32_compat[] __initconst = {
"st,stm32f429",
NULL
};
DT_MACHINE_START(STM32DT, "STM32 (Device Tree Support)")
.dt_compat = stm32_compat,
.restart = armv7m_restart,
MACHINE_END
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