ARM: imx: Add initial support for i.MXRT10xx family

The i.MXRT10xx family of processors features NXP's implementation of the
Arm Cortex-M7 core and in some case the Arm Cortex-M4 core too.

This patch aims to add an initial support for imxrt.

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Signed-off-by: Jesse Taube <Mr.Bossman075@gmail.com>
[Jesse: removed SOC_IMXRT's 'depends on ARCH_MULTI_V7' and 'select
ARM_GIC if ARCH_MULTI_V7']
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index f296bac467c857ebee2399089f99673f933dcf47..c5a59158722b7cde72057cff639058a4f4c850f0 100644 (file)
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -227,6 +227,13 @@ config SOC_IMX7ULP
        help
          This enables support for Freescale i.MX7 Ultra Low Power processor.
 
+config SOC_IMXRT
+       bool "i.MXRT support"
+       depends on ARM_SINGLE_ARMV7M
+       select ARMV7M_SYSTICK if ARM_SINGLE_ARMV7M
+       help
+         This enables support for Freescale i.MXRT Crossover 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 d5291ed9186af9bddc05791681f79be0ae681137..6fb3965b9ae64786ce3df3704dca669d6c5ea03c 100644 (file)
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -63,6 +63,8 @@ obj-$(CONFIG_SOC_IMX50) += mach-imx50.o
 obj-$(CONFIG_SOC_IMX51) += mach-imx51.o
 obj-$(CONFIG_SOC_IMX53) += mach-imx53.o
 
+obj-$(CONFIG_SOC_IMXRT) += mach-imxrt.o
+
 obj-$(CONFIG_SOC_VF610) += mach-vf610.o
 
 obj-$(CONFIG_SOC_LS1021A) += mach-ls1021a.o

diff --git a/arch/arm/mach-imx/mach-imxrt.c b/arch/arm/mach-imx/mach-imxrt.c
new file mode 100644 (file)
index 0000000..2063a30
--- /dev/null
+++ b/arch/arm/mach-imx/mach-imxrt.c
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019
+ * Author(s): Giulio Benetti <giulio.benetti@benettiengineering.com>
+ */
+
+#include <linux/kernel.h>
+#include <asm/mach/arch.h>
+#include <asm/v7m.h>
+
+static const char *const imxrt_compat[] __initconst = {
+       "fsl,imxrt1050",
+       NULL
+};
+
+DT_MACHINE_START(IMXRTDT, "IMXRT (Device Tree Support)")
+       .dt_compat = imxrt_compat,
+       .restart = armv7m_restart,
+MACHINE_END