[PATCH V2 5/9] ARM: stm32: add initial support for STM32MP157
From: Ludovic Barre <hidden>
Date: 2017-12-18 15:20:06
Also in:
linux-devicetree, lkml
Subsystem:
arm port, arm/stm32 architecture, documentation, the rest · Maintainers:
Russell King, Maxime Coquelin, Alexandre Torgue, Jonathan Corbet, Linus Torvalds
From: Ludovic Barre <redacted> 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 <redacted> --- Documentation/arm/stm32/stm32mp157-overview.rst | 19 +++++++++++++++++++ arch/arm/mach-stm32/Kconfig | 8 ++++++++ arch/arm/mach-stm32/Makefile | 1 + arch/arm/mach-stm32/board-mpu-dt.c | 16 ++++++++++++++++ 4 files changed, 44 insertions(+) create mode 100644 Documentation/arm/stm32/stm32mp157-overview.rst create mode 100644 arch/arm/mach-stm32/board-mpu-dt.c
diff --git a/Documentation/arm/stm32/stm32mp157-overview.rst b/Documentation/arm/stm32/stm32mp157-overview.rst
new file mode 100644
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 e0f744b..146e22f 100644
--- 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
@@ -31,4 +34,9 @@ config MACH_STM32H743 depends on ARM_SINGLE_ARMV7M default y +config MACH_STM32MP157 + bool "STMicroelectronics STM32MP157" + depends on ARCH_MULTI_V7 + default y + endif
diff --git a/arch/arm/mach-stm32/Makefile b/arch/arm/mach-stm32/Makefile
index 5940af1..2cc3542 100644
--- a/arch/arm/mach-stm32/Makefile
+++ b/arch/arm/mach-stm32/Makefile@@ -1 +1,2 @@ obj-$(CONFIG_ARM_SINGLE_ARMV7M) += board-mcu-dt.o +obj-$(CONFIG_ARCH_MULTI_V7) += board-mpu-dt.o
diff --git a/arch/arm/mach-stm32/board-mpu-dt.c b/arch/arm/mach-stm32/board-mpu-dt.c
new file mode 100644
index 0000000..9e18405
--- /dev/null
+++ b/arch/arm/mach-stm32/board-mpu-dt.c@@ -0,0 +1,16 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) STMicroelectronics 2017 - All Rights Reserved + * Author: Ludovic Barre <ludovic.barre@st.com> for STMicroelectronics. + */ +#include <asm/mach/arch.h> +#include <linux/of_platform.h> + +static const char *const stm32mp_compat[] __initconst = { + "st,stm32mp157", + NULL +}; + +DT_MACHINE_START(STM32MPDT, "STM32 MP (Device Tree Support)") + .dt_compat = stm32mp_compat, +MACHINE_END
--
2.7.4