ARM: stm32: add initial support for STM32MP157

This patch adds initial support of STM32MP157 microprocessor (MPU)
based on Arm Cortex-A7. New Cortex-A infrastructure (gic, timer,...)
are selected if ARCH_MULTI_V7 is defined.

Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>

diff --git a/Documentation/arm/stm32/stm32mp157-overview.rst b/Documentation/arm/stm32/stm32mp157-overview.rst
new file mode 100644 (file)
index 0000000..62e176d
--- /dev/null
+++ b/Documentation/arm/stm32/stm32mp157-overview.rst
@@ -0,0 +1,19 @@
+STM32MP157 Overview
+===================
+
+Introduction
+------------
+
+The STM32MP157 is a Cortex-A MPU aimed at various applications.
+It features:
+
+- Dual core Cortex-A7 application core
+- 2D/3D image composition with GPU
+- Standard memories interface support
+- Standard connectivity, widely inherited from the STM32 MCU family
+- Comprehensive security support
+
+:Authors:
+
+- Ludovic Barre <ludovic.barre@st.com>
+- Gerald Baeza <gerald.baeza@st.com>

diff --git a/arch/arm/mach-stm32/Kconfig b/arch/arm/mach-stm32/Kconfig
index 1a87646..5bc7f5a 100644 (file)
--- a/arch/arm/mach-stm32/Kconfig
+++ b/arch/arm/mach-stm32/Kconfig
@@ -1,6 +1,9 @@
 menuconfig ARCH_STM32
        bool "STMicroelectronics STM32 family" if ARM_SINGLE_ARMV7M || ARCH_MULTI_V7
        select ARMV7M_SYSTICK if ARM_SINGLE_ARMV7M
+       select HAVE_ARM_ARCH_TIMER if ARCH_MULTI_V7
+       select ARM_GIC if ARCH_MULTI_V7
+       select ARM_PSCI if ARCH_MULTI_V7
        select ARCH_HAS_RESET_CONTROLLER
        select CLKSRC_STM32
        select PINCTRL
@@ -35,4 +38,12 @@ config MACH_STM32H743
 
 endif # ARMv7-M
 
+if ARCH_MULTI_V7
+
+config MACH_STM32MP157
+       bool "STMicroelectronics STM32MP157"
+       default y
+
+endif # ARMv7-A
+
 endif

diff --git a/arch/arm/mach-stm32/board-dt.c b/arch/arm/mach-stm32/board-dt.c
index 6786f35..06911ad 100644 (file)
--- a/arch/arm/mach-stm32/board-dt.c
+++ b/arch/arm/mach-stm32/board-dt.c
@@ -14,6 +14,7 @@ static const char *const stm32_compat[] __initconst = {
        "st,stm32f746",
        "st,stm32f769",
        "st,stm32h743",
+       "st,stm32mp157",
        NULL
 };