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>

2 files changed, 54 insertions, 0 deletions

diff --git a/Documentation/arm/stm32/overview.txt b/Documentation/arm/stm32/overview.txt
new file mode 100644
index 000000000000..09aed5588d7c
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+++ 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@gmail.com>
diff --git a/Documentation/arm/stm32/stm32f429-overview.txt b/Documentation/arm/stm32/stm32f429-overview.txt
new file mode 100644
index 000000000000..5206822bd8ef
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+++ b/Documentation/arm/stm32/stm32f429-overview.txt
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+                        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>