Cortex M4 part can be started from a boot loader or over
Linux remoteproc framework.
Signed-off-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
---
arch/arm/mach-imx/Kconfig | 33 +++++++++++++++++++-----------
arch/arm/mach-imx/Makefile | 3 ++-
arch/arm/mach-imx/mach-imx7d-cm4.c | 18 ++++++++++++++++
3 files changed, 41 insertions(+), 13 deletions(-)
create mode 100644 arch/arm/mach-imx/mach-imx7d-cm4.c
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index e47fa13f4b0c..5ad58b1cb4bc 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -522,18 +522,6 @@ 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
@@ -548,6 +536,27 @@ 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 2327e3e876d8..64ebeb6a4f30 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -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
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..0800b5891d2a
--- /dev/null
+++ b/arch/arm/mach-imx/mach-imx7d-cm4.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2018 Pengutronix, Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
+ */
+
+#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
--
2.17.1
--
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