On 12/13/2017 12:24 AM, Rob Herring wrote:
On Fri, Dec 08, 2017 at 03:11:13PM +0100, Ludovic Barre wrote:
From: Ludovic Barre <ludovic.barre@xxxxxx>
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 <ludovic.barre@xxxxxx>
---
Documentation/arm/stm32/stm32mp157-overview.txt | 12 ++++++++++++
Documentation/devicetree/bindings/arm/stm32.txt | 1 +
Please split bindings to separate patches.
OK, I will split stm32.txt in separate commit
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.c
diff --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.
the existing documentation of stm32 are txt format
-overview.txt
-stm32f429-overwiew.txt
-stm32f746-overview.txt
-stm32h743-overview.txt
what do you prefer:
-omit stm32mp157-overview.txt of this serie and change all in next commit.
-write only this file in rst format
-change all in this serie?
@@ -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.
yes, I could add some details in MACH_STM32MP157 kconfig entry
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,stm32mp157
diff --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?
Yes, it's used in pinctrl driver.
+ bool "STMicrolectronics STM32MP157"
+ depends on ARCH_STM32_MPU
+ default y
+
+endif
+
endif
--
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