imx: Add basic support for the NXP IMXRT10xx SoC family
Add i.IMXRT family basic support.
Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index e14713c..a70d51b 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -27,7 +27,7 @@
obj-$(CONFIG_GPT_TIMER) += timer.o
obj-$(CONFIG_SYS_I2C_MXC) += i2c-mxv7.o
endif
-ifeq ($(SOC),$(filter $(SOC),mx7 mx6 mxs imx8m imx8))
+ifeq ($(SOC),$(filter $(SOC),mx7 mx6 mxs imx8m imx8 imxrt))
obj-y += misc.o
obj-$(CONFIG_SPL_BUILD) += spl.o
endif
@@ -226,5 +226,6 @@
obj-$(CONFIG_ARCH_MX7ULP) += mx7ulp/
obj-$(CONFIG_IMX8M) += imx8m/
obj-$(CONFIG_ARCH_IMX8) += imx8/
+obj-$(CONFIG_ARCH_IMXRT) += imxrt/
obj-$(CONFIG_SPL_BOOTROM_SUPPORT) += spl_imx_romapi.o
diff --git a/arch/arm/mach-imx/imxrt/Kconfig b/arch/arm/mach-imx/imxrt/Kconfig
new file mode 100644
index 0000000..96ad2e9
--- /dev/null
+++ b/arch/arm/mach-imx/imxrt/Kconfig
@@ -0,0 +1,13 @@
+if ARCH_IMXRT
+
+config IMXRT
+ bool
+
+config IMXRT1050
+ bool
+ select IMXRT
+
+config SYS_SOC
+ default "imxrt"
+
+endif
diff --git a/arch/arm/mach-imx/imxrt/Makefile b/arch/arm/mach-imx/imxrt/Makefile
new file mode 100644
index 0000000..9621a83
--- /dev/null
+++ b/arch/arm/mach-imx/imxrt/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2019
+# Author(s): Giulio Benetti <giulio.benetti@benettiengineering.com>
+#
+
+obj-y := soc.o
diff --git a/arch/arm/mach-imx/imxrt/soc.c b/arch/arm/mach-imx/imxrt/soc.c
new file mode 100644
index 0000000..e1eea23
--- /dev/null
+++ b/arch/arm/mach-imx/imxrt/soc.c
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2019
+ * Author(s): Giulio Benetti <giulio.benetti@benettiengineering.com>
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/armv7_mpu.h>
+
+int arch_cpu_init(void)
+{
+ int i;
+
+ struct mpu_region_config imxrt1050_region_config[] = {
+ { 0x00000000, REGION_0, XN_DIS, PRIV_RW_USR_RW,
+ STRONG_ORDER, REGION_4GB },
+ { PHYS_SDRAM, REGION_1, XN_DIS, PRIV_RW_USR_RW,
+ O_I_WB_RD_WR_ALLOC, (ffs(PHYS_SDRAM_SIZE) - 2) },
+ { DMAMEM_BASE,
+ REGION_2, XN_DIS, PRIV_RW_USR_RW,
+ STRONG_ORDER, (ffs(DMAMEM_SZ_ALL) - 2) },
+ };
+
+ /*
+ * Configure the memory protection unit (MPU) to allow full access to
+ * the whole 4GB address space.
+ */
+ disable_mpu();
+ for (i = 0; i < ARRAY_SIZE(imxrt1050_region_config); i++)
+ mpu_config(&imxrt1050_region_config[i]);
+ enable_mpu();
+
+ return 0;
+}