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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/mach-stm32
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/mach-stm32')
-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
3 files changed, 23 insertions, 0 deletions
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