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ARM: imx: Provide support for NXP i.MX7D Cortex-M4 

Cortex M4 part can be started from a boot loader or over
Linux remoteproc framework.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
hifive-unleashed-5.1
Oleksij Rempel 2018-07-03 09:12:47 +02:00 committed by Shawn Guo
parent d082852f40
commit 1a1f919eb5
3 changed files with 41 additions and 13 deletions
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33
arch/arm/mach-imx/Kconfig
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@ -523,18 +523,6 @@ 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
@ -549,6 +537,27 @@ 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

3
arch/arm/mach-imx/Makefile
View File

@ -81,7 +81,8 @@ obj-$(CONFIG_SOC_IMX6SL) += mach-imx6sl.o
obj-$(CONFIG_SOC_IMX6SLL) += 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

18
arch/arm/mach-imx/mach-imx7d-cm4.c 100644
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@ -0,0 +1,18 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2018 Pengutronix, Oleksij Rempel <o.rempel@pengutronix.de>
*/
#include <linux/kernel.h>
#include <asm/v7m.h>
#include <asm/mach/arch.h>
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