[PATCH 2/6] ARM: stm32: add initial support for STM32MP157
From: robh@kernel.org (Rob Herring)
Date: 2017-12-12 23:24:29
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linux-devicetree, lkml
On Fri, Dec 08, 2017 at 03:11:13PM +0100, Ludovic Barre wrote:
From: Ludovic Barre <redacted> This patch adds initial support of STM32MP157 microprocessor (MPU) based on Arm Cortex-A7. Under new ARCH_STM32_MPU flag we select the needed Cortex-A infrastructure (like gic, timer,...) Signed-off-by: Ludovic Barre <redacted> --- Documentation/arm/stm32/stm32mp157-overview.txt | 12 ++++++++++++ Documentation/devicetree/bindings/arm/stm32.txt | 1 +
Please split bindings to separate patches.
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arch/arm/mach-stm32/Kconfig | 22 ++++++++++++++++++++-- arch/arm/mach-stm32/Makefile | 1 + arch/arm/mach-stm32/board-mpu-dt.c | 16 ++++++++++++++++ 5 files changed, 50 insertions(+), 2 deletions(-) create mode 100644 Documentation/arm/stm32/stm32mp157-overview.txt create mode 100644 arch/arm/mach-stm32/board-mpu-dt.cdiff --git a/Documentation/arm/stm32/stm32mp157-overview.txt b/Documentation/arm/stm32/stm32mp157-overview.txt new file mode 100644 index 0000000..8a3e7cb --- /dev/null +++ b/Documentation/arm/stm32/stm32mp157-overview.txt
I think new documentation files should be rst format and fit into the built documentation. We don't have an SoC description doc for most SoCs.
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@@ -0,0 +1,12 @@ + 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
Perhaps make this part of the kconfig entry help.
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diff --git a/Documentation/devicetree/bindings/arm/stm32.txt b/Documentation/devicetree/bindings/arm/stm32.txt index 05762b0..6808ed9 100644 --- a/Documentation/devicetree/bindings/arm/stm32.txt +++ b/Documentation/devicetree/bindings/arm/stm32.txt@@ -7,3 +7,4 @@ using one of the following compatible strings: st,stm32f469 st,stm32f746 st,stm32h743 + st,stm32mp157diff --git a/arch/arm/mach-stm32/Kconfig b/arch/arm/mach-stm32/Kconfig index c8059ea..2b227c7 100644 --- a/arch/arm/mach-stm32/Kconfig +++ b/arch/arm/mach-stm32/Kconfig@@ -1,12 +1,12 @@ menuconfig ARCH_STM32 - bool "STMicrolectronics STM32 family" if ARM_SINGLE_ARMV7M + bool "STMicrolectronics STM32 family" if ARM_SINGLE_ARMV7M || ARCH_MULTI_V7 select ARCH_HAS_RESET_CONTROLLER select CLKSRC_STM32 select PINCTRL select RESET_CONTROLLER select STM32_EXTI help - Support for STMicroelectronics STM32 MCU family + Support for STMicroelectronics STM32 MCU/MPU family if ARCH_STM32@@ -40,4 +40,22 @@ config MACH_STM32H743 endif +if ARCH_MULTI_V7 + +config ARCH_STM32_MPU + bool "STMicrolectronics STM32 MPU" + default y + select ARM_GIC + select HAVE_ARM_ARCH_TIMER + select ARM_PSCI + help + Support for STMicroelectronics STM32 Microprocessors. + +config MACH_STM32MP157
Is this actually used?
+ bool "STMicrolectronics STM32MP157" + depends on ARCH_STM32_MPU + default y + +endif + endif