From: Ludovic Barre <ludovic.Barre-qxv4g6HH51o@public.gmane.org>
To: Russell King <linux-I+IVW8TIWO2tmTQ+vhA3Yw@public.gmane.org>,
Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Linus Walleij
<linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Cc: Maxime Coquelin
<mcoquelin.stm32-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Alexandre Torgue <alexandre.torgue-qxv4g6HH51o@public.gmane.org>,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Ludovic Barre <ludovic.barre-qxv4g6HH51o@public.gmane.org>
Subject: [PATCH 2/6] ARM: stm32: add initial support for STM32MP157
Date: Fri, 8 Dec 2017 15:11:13 +0100 [thread overview]
Message-ID: <1512742277-28205-3-git-send-email-ludovic.Barre@st.com> (raw)
In-Reply-To: <1512742277-28205-1-git-send-email-ludovic.Barre-qxv4g6HH51o@public.gmane.org>
From: Ludovic Barre <ludovic.barre-qxv4g6HH51o@public.gmane.org>
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-qxv4g6HH51o@public.gmane.org>
---
Documentation/arm/stm32/stm32mp157-overview.txt | 12 ++++++++++++
Documentation/devicetree/bindings/arm/stm32.txt | 1 +
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
@@ -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
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
+ bool "STMicrolectronics STM32MP157"
+ depends on ARCH_STM32_MPU
+ default y
+
+endif
+
endif
diff --git a/arch/arm/mach-stm32/Makefile b/arch/arm/mach-stm32/Makefile
index 90c1b71..a405eb6 100644
--- a/arch/arm/mach-stm32/Makefile
+++ b/arch/arm/mach-stm32/Makefile
@@ -1 +1,2 @@
obj-$(CONFIG_ARCH_STM32_MCU) += board-mcu-dt.o
+obj-$(CONFIG_ARCH_STM32_MPU) += 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-qxv4g6HH51o@public.gmane.org> 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
--
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next prev parent reply other threads:[~2017-12-08 14:11 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-08 14:11 [PATCH 0/6] ARM: stm32: add initial STM32MPU support Ludovic Barre
[not found] ` <1512742277-28205-1-git-send-email-ludovic.Barre-qxv4g6HH51o@public.gmane.org>
2017-12-08 14:11 ` [PATCH 1/6] ARM: stm32: prepare stm32 family to welcome armv7 architecture Ludovic Barre
2017-12-11 10:25 ` Linus Walleij
[not found] ` <CACRpkdaKZk5N9F=_nYSzKWyXgW4xQ9Ltft7-UNM+a-nOpqq2xg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-12-11 13:40 ` Arnd Bergmann
2017-12-11 14:22 ` Ludovic BARRE
2017-12-12 11:03 ` afzal mohammed
2017-12-12 13:32 ` Ludovic BARRE
2017-12-08 14:11 ` Ludovic Barre [this message]
2017-12-12 23:24 ` [PATCH 2/6] ARM: stm32: add initial support for STM32MP157 Rob Herring
2017-12-13 9:02 ` Ludovic BARRE
2017-12-08 14:11 ` [PATCH 4/6] ARM: configs: multi_v7: add stm32 support Ludovic Barre
2017-12-08 14:11 ` [PATCH 6/6] ARM: dts: stm32: add initial support of stm32mp157c eval board Ludovic Barre
2017-12-08 14:41 ` [PATCH 0/6] ARM: stm32: add initial STM32MPU support Neil Armstrong
2017-12-08 14:11 ` [PATCH 3/6] pinctrl: stm32: Add STM32MP157 MPU support Ludovic Barre
[not found] ` <1512742277-28205-4-git-send-email-ludovic.Barre-qxv4g6HH51o@public.gmane.org>
2017-12-12 23:25 ` Rob Herring
2017-12-08 14:11 ` [PATCH 5/6] ARM: dts: stm32: add stm32mp157c initial support Ludovic Barre
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