Hello, On Fri, Feb 20, 2015 at 07:01:13PM +0100, Maxime Coquelin wrote: > 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 <mcoquelin.stm32@xxxxxxxxx> > --- > 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 <mcoquelin.stm32@xxxxxxxxx> > 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 <mcoquelin.stm32@xxxxxxxxx> > 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 Please sort this list alphabetically. > + 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 Maybe note there why this file exists and can be empty. Feel free to copy the content of efm32's Makefile.boot. > 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 <mcoquelin.stm32@xxxxxxxxx> > + * License terms: GNU General Public License (GPL), version 2 > + */ > + > +#include <linux/kernel.h> > +#include <linux/clk-provider.h> > +#include <linux/clocksource.h> > +#include <linux/reset-controller.h> > +#include <asm/v7m.h> > +#include <asm/mach/arch.h> > + > +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(); Hmm, if reset_controller_of_init was called automatically you wouldn't need that, right? Maybe arange for that instead? Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ | -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
