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(169.20.90.92.rev.sfr.net. [92.90.20.169]) by mx.google.com with ESMTPSA id hs7sm3398370wib.4.2015.02.20.10.02.08 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 20 Feb 2015 10:02:10 -0800 (PST) From: Maxime Coquelin To: u.kleine-koenig@pengutronix.de, afaerber@suse.de, geert@linux-m68k.org, Rob Herring , Philipp Zabel , Jonathan Corbet , Maxime Coquelin , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Russell King , Daniel Lezcano , Thomas Gleixner , Linus Walleij , Greg Kroah-Hartman , Jiri Slaby , Arnd Bergmann , Andrew Morton , "David S. Miller" , Mauro Carvalho Chehab , Joe Perches , Antti Palosaari , Tejun Heo , Will Deacon , Nikolay Borisov , Rusty Russell , Kees Cook , Michal Marek , linux-doc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-gpio@vger.kernel.org, linux-serial@vger.kernel.org, linux-arch@vger.kernel.org, linux-api@vger.kernel.org Subject: [PATCH v2 14/18] ARM: Add STM32 family machine Date: Fri, 20 Feb 2015 19:01:13 +0100 Message-Id: <1424455277-29983-15-git-send-email-mcoquelin.stm32@gmail.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1424455277-29983-1-git-send-email-mcoquelin.stm32@gmail.com> References: <1424455277-29983-1-git-send-email-mcoquelin.stm32@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150220_100233_216436_7A9FA050 X-CRM114-Status: GOOD ( 16.08 ) X-Spam-Score: 3.0 (+++) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_MED, RCVD_IN_SBL_CSS, RP_MATCHES_RCVD, T_DKIM_INVALID,UNPARSEABLE_RELAY autolearn=no version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP STMicrolectronics's STM32 series is a family of Cortex-M microcontrollers. It is used in various applications, and proposes a wide range of peripherals. Signed-off-by: Maxime Coquelin --- Documentation/arm/stm32/overview.txt | 32 ++++++++++++++++++++++++++ Documentation/arm/stm32/stm32f429-overview.txt | 22 ++++++++++++++++++ arch/arm/Kconfig | 22 ++++++++++++++++++ arch/arm/Makefile | 1 + arch/arm/mach-stm32/Makefile | 1 + arch/arm/mach-stm32/Makefile.boot | 0 arch/arm/mach-stm32/board-dt.c | 31 +++++++++++++++++++++++++ 7 files changed, 109 insertions(+) create mode 100644 Documentation/arm/stm32/overview.txt create mode 100644 Documentation/arm/stm32/stm32f429-overview.txt create mode 100644 arch/arm/mach-stm32/Makefile create mode 100644 arch/arm/mach-stm32/Makefile.boot create mode 100644 arch/arm/mach-stm32/board-dt.c diff --git a/Documentation/arm/stm32/overview.txt b/Documentation/arm/stm32/overview.txt new file mode 100644 index 0000000..d8bf6bb --- /dev/null +++ b/Documentation/arm/stm32/overview.txt @@ -0,0 +1,32 @@ + 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 diff --git a/Documentation/arm/stm32/stm32f429-overview.txt b/Documentation/arm/stm32/stm32f429-overview.txt new file mode 100644 index 0000000..5206822 --- /dev/null +++ b/Documentation/arm/stm32/stm32f429-overview.txt @@ -0,0 +1,22 @@ + 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 diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 97d07ed..cfd9532 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -774,6 +774,28 @@ config ARCH_OMAP1 help Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx) +config ARCH_STM32 + bool "STMicrolectronics STM32" + depends on !MMU + select ARCH_REQUIRE_GPIOLIB + select ARM_NVIC + select AUTO_ZRELADDR + select ARCH_HAS_RESET_CONTROLLER + select RESET_CONTROLLER + select PINCTRL + select PINCTRL_STM32 + select CLKSRC_OF + select ARMV7M_SYSTICK + select COMMON_CLK + select CPU_V7M + select GENERIC_CLOCKEVENTS + select NO_DMA + select NO_IOPORT_MAP + select SPARSE_IRQ + select USE_OF + help + Support for STMicorelectronics STM32 processors. + endchoice menu "Multiple platform selection" diff --git a/arch/arm/Makefile b/arch/arm/Makefile index c1785ee..7d00659 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -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 diff --git a/arch/arm/mach-stm32/Makefile b/arch/arm/mach-stm32/Makefile new file mode 100644 index 0000000..bd0b7b5 --- /dev/null +++ b/arch/arm/mach-stm32/Makefile @@ -0,0 +1 @@ +obj-y += board-dt.o diff --git a/arch/arm/mach-stm32/Makefile.boot b/arch/arm/mach-stm32/Makefile.boot new file mode 100644 index 0000000..e69de29 diff --git a/arch/arm/mach-stm32/board-dt.c b/arch/arm/mach-stm32/board-dt.c new file mode 100644 index 0000000..1d681b3 --- /dev/null +++ b/arch/arm/mach-stm32/board-dt.c @@ -0,0 +1,31 @@ +/* + * Copyright (C) Maxime Coquelin 2015 + * Author: Maxime Coquelin + * License terms: GNU General Public License (GPL), version 2 + */ + +#include +#include +#include +#include +#include +#include + +static const char *const stm32_compat[] __initconst = { + "st,stm32f429", + NULL +}; + +static void __init stm32_timer_init(void) +{ + of_clk_init(NULL); + reset_controller_of_init(); + clocksource_of_init(); + +} + +DT_MACHINE_START(STM32DT, "STM32 (Device Tree Support)") + .init_time = stm32_timer_init, + .dt_compat = stm32_compat, + .restart = armv7m_restart, +MACHINE_END