From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753972AbdLHONO (ORCPT ); Fri, 8 Dec 2017 09:13:14 -0500 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:30423 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753786AbdLHOML (ORCPT ); Fri, 8 Dec 2017 09:12:11 -0500 From: Ludovic Barre To: Russell King , Rob Herring , Linus Walleij , Arnd Bergmann CC: Maxime Coquelin , Alexandre Torgue , , , , Ludovic Barre Subject: [PATCH 2/6] ARM: stm32: add initial support for STM32MP157 Date: Fri, 8 Dec 2017 15:11:13 +0100 Message-ID: <1512742277-28205-3-git-send-email-ludovic.Barre@st.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1512742277-28205-1-git-send-email-ludovic.Barre@st.com> References: <1512742277-28205-1-git-send-email-ludovic.Barre@st.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.48.0.237] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2017-12-08_08:,, signatures=0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Ludovic Barre 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 --- 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 for STMicroelectronics. + */ +#include +#include + +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