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authorMaxime Coquelin <mcoquelin.stm32@gmail.com>2015-05-09 10:53:54 +0300
committerArnd Bergmann <arnd@arndb.de>2015-05-15 22:43:23 +0300
commit9b799b78372c925d3204567741e3ff8fe0cc1c7d (patch)
treee956041743bb2b3b39d6ff65cc1c684bf2883005 /arch/arm
parent7448adca9361b4ad97614a08c487e215f1990ad7 (diff)
downloadlinux-9b799b78372c925d3204567741e3ff8fe0cc1c7d.tar.xz
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: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/Kconfig18
-rw-r--r--arch/arm/Makefile1
-rw-r--r--arch/arm/mach-stm32/Makefile1
-rw-r--r--arch/arm/mach-stm32/Makefile.boot3
-rw-r--r--arch/arm/mach-stm32/board-dt.c19
5 files changed, 42 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 7cd23bb03244..99544479ab01 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -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"
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index fe8f9ef89395..d7af1922f56f 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 000000000000..bd0b7b5d6e9d
--- /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 000000000000..eacfc3f5c33e
--- /dev/null
+++ b/arch/arm/mach-stm32/Makefile.boot
@@ -0,0 +1,3 @@
+# 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 .
diff --git a/arch/arm/mach-stm32/board-dt.c b/arch/arm/mach-stm32/board-dt.c
new file mode 100644
index 000000000000..f2ad7723d034
--- /dev/null
+++ b/arch/arm/mach-stm32/board-dt.c
@@ -0,0 +1,19 @@
+/*
+ * 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