From mboxrd@z Thu Jan 1 00:00:00 1970 From: o.rempel@pengutronix.de (Oleksij Rempel) Date: Thu, 5 Apr 2018 13:51:34 +0200 Subject: [PATCH v1] ARM: imx: add imx7d-m4 Message-ID: <20180405115134.8036-1-o.rempel@pengutronix.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Provide basic support for Cortex-M4 located on NXP iMX7D. This code was tested in combination with imx-rproc driver which will upload with specially formatted ELF image containing kernel, device and CPIO rootfs. Signed-off-by: Oleksij Rempel --- arch/arm/boot/dts/Makefile | 2 +- arch/arm/mach-imx/Kconfig | 33 +++++++++++++++++++++------------ arch/arm/mach-imx/Makefile | 3 ++- arch/arm/mach-imx/mach-imx7d-cm4.c | 21 +++++++++++++++++++++ 4 files changed, 45 insertions(+), 14 deletions(-) create mode 100644 arch/arm/mach-imx/mach-imx7d-cm4.c diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index 852452515bea..d49bb9a58aee 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -527,7 +527,7 @@ dtb-$(CONFIG_SOC_IMX6UL) += \ imx6ul-tx6ul-0011.dtb \ imx6ul-tx6ul-mainboard.dtb \ imx6ull-14x14-evk.dtb -dtb-$(CONFIG_SOC_IMX7D) += \ +dtb-$(CONFIG_SOC_IMX7D_CA7) += \ imx7d-cl-som-imx7.dtb \ imx7d-colibri-emmc-eval-v3.dtb \ imx7d-colibri-eval-v3.dtb \ diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig index 782699e67600..101c8599d952 100644 --- a/arch/arm/mach-imx/Kconfig +++ b/arch/arm/mach-imx/Kconfig @@ -528,18 +528,6 @@ config SOC_IMX6UL help This enables support for Freescale i.MX6 UltraLite processor. -config SOC_IMX7D - bool "i.MX7 Dual support" - select PINCTRL_IMX7D - select ARM_GIC - select HAVE_ARM_ARCH_TIMER - select HAVE_IMX_ANATOP - select HAVE_IMX_MMDC - select HAVE_IMX_SRC - select IMX_GPCV2 - help - This enables support for Freescale i.MX7 Dual processor. - config SOC_LS1021A bool "Freescale LS1021A support" select ARM_GIC @@ -554,6 +542,27 @@ comment "Cortex-A/Cortex-M asymmetric multiprocessing platforms" if ARCH_MULTI_V7 || ARM_SINGLE_ARMV7M +config SOC_IMX7D_CA7 + bool + select ARM_GIC + select HAVE_ARM_ARCH_TIMER + select HAVE_IMX_ANATOP + select HAVE_IMX_MMDC + select HAVE_IMX_SRC + select IMX_GPCV2 + +config SOC_IMX7D_CM4 + bool + select ARMV7M_SYSTICK + +config SOC_IMX7D + bool "i.MX7 Dual support" + select PINCTRL_IMX7D + select SOC_IMX7D_CA7 if ARCH_MULTI_V7 + select SOC_IMX7D_CM4 if ARM_SINGLE_ARMV7M + help + This enables support for Freescale i.MX7 Dual processor. + config SOC_VF610 bool "Vybrid Family VF610 support" select ARM_GIC if ARCH_MULTI_V7 diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile index 8ff71058207d..68640f100ef3 100644 --- a/arch/arm/mach-imx/Makefile +++ b/arch/arm/mach-imx/Makefile @@ -80,7 +80,8 @@ obj-$(CONFIG_SOC_IMX6Q) += mach-imx6q.o obj-$(CONFIG_SOC_IMX6SL) += mach-imx6sl.o obj-$(CONFIG_SOC_IMX6SX) += mach-imx6sx.o obj-$(CONFIG_SOC_IMX6UL) += mach-imx6ul.o -obj-$(CONFIG_SOC_IMX7D) += mach-imx7d.o +obj-$(CONFIG_SOC_IMX7D_CA7) += mach-imx7d.o +obj-$(CONFIG_SOC_IMX7D_CM4) += mach-imx7d-cm4.o ifeq ($(CONFIG_SUSPEND),y) AFLAGS_suspend-imx6.o :=-Wa,-march=armv7-a diff --git a/arch/arm/mach-imx/mach-imx7d-cm4.c b/arch/arm/mach-imx/mach-imx7d-cm4.c new file mode 100644 index 000000000000..c36dea79aeb8 --- /dev/null +++ b/arch/arm/mach-imx/mach-imx7d-cm4.c @@ -0,0 +1,21 @@ +/* + * Copyright 2017 Pengutronix + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include + +static const char * const imx7d_cm4_dt_compat[] __initconst = { + "fsl,imx7d-cm4", + NULL, +}; + +DT_MACHINE_START(IMX7D, "Freescale i.MX7 Dual Cortex-M4 (Device Tree)") + .dt_compat = imx7d_cm4_dt_compat, + .restart = armv7m_restart, +MACHINE_END -- 2.16.1