imx: add imx8m support

Add imx8m support:
 - add a cortexa53 subtarget to imx
 - move ARCH and KERNELNAME to subtargets
 - account for kernel modules that are not used for cortexa53

No device-specific targets or firmware images are created yet but all
imx8m* dtbs will be built.

enabling CONFIG_TARGET_ROOTFS_INITRAMFS results in
openwrt-imx-cortexa53-imx8m-initramfs-kernel.bin which has been
successfully booted on an imx8mm-evk using the following:

u-boot=> tftpboot $fdt_addr_r image-imx8mm-evk.dtb && \
tftpboot $kernel_addr_r openwrt-imx-cortexa53-imx8m-initramfs-kernel.bin && \
booti $kernel_addr_r - $fdt_addr_r

Signed-off-by: Tim Harvey <tharvey@gateworks.com>

package/kernel/linux/modules/crypto.mk

@@ -319,7 +319,8 @@ define KernelPackage/crypto-ghash/arm-ce
   AUTOLOAD+=$(call AutoLoad,09,ghash-arm-ce)
 endef
 
-KernelPackage/crypto-ghash/imx=$(KernelPackage/crypto-ghash/arm-ce)
+KernelPackage/crypto-ghash/imx/cortexa7=$(KernelPackage/crypto-ghash/arm-ce)
+KernelPackage/crypto-ghash/imx/cortexa9=$(KernelPackage/crypto-ghash/arm-ce)
 KernelPackage/crypto-ghash/ipq40xx=$(KernelPackage/crypto-ghash/arm-ce)
 KernelPackage/crypto-ghash/mvebu/cortexa9=$(KernelPackage/crypto-ghash/arm-ce)
 
@@ -952,7 +953,8 @@ define KernelPackage/crypto-sha1/aarch64-ce
   AUTOLOAD+=$(call AutoLoad,09,sha1-ce)
 endef
 
-KernelPackage/crypto-sha1/imx=$(KernelPackage/crypto-sha1/arm-neon)
+KernelPackage/crypto-sha1/imx/cortexa7=$(KernelPackage/crypto-sha1/arm-neon)
+KernelPackage/crypto-sha1/imx/cortexa9=$(KernelPackage/crypto-sha1/arm-neon)
 KernelPackage/crypto-sha1/ipq40xx=$(KernelPackage/crypto-sha1/arm-neon)
 KernelPackage/crypto-sha1/mediatek/filogic=$(KernelPackage/crypto-sha1/aarch64-ce)
 KernelPackage/crypto-sha1/mediatek/mt7622=$(KernelPackage/crypto-sha1/aarch64-ce)
@@ -1085,7 +1087,8 @@ define KernelPackage/crypto-sha512/aarch64
   AUTOLOAD+=$(call AutoLoad,09,sha512-arm64)
 endef
 
-KernelPackage/crypto-sha512/imx=$(KernelPackage/crypto-sha512/arm)
+KernelPackage/crypto-sha512/imx/cortexa7=$(KernelPackage/crypto-sha512/arm)
+KernelPackage/crypto-sha512/imx/cortexa9=$(KernelPackage/crypto-sha512/arm)
 KernelPackage/crypto-sha512/ipq40xx=$(KernelPackage/crypto-sha512/arm)
 KernelPackage/crypto-sha512/mvebu/cortexa9=$(KernelPackage/crypto-sha512/arm)
 

package/kernel/linux/modules/video.mk

@@ -448,7 +448,7 @@ $(eval $(call KernelPackage,drm-imx-hdmi))
 define KernelPackage/drm-imx-ldb
   SUBMENU:=$(VIDEO_MENU)
   TITLE:=Freescale i.MX LVDS DRM support
-  DEPENDS:=+kmod-backlight kmod-drm-imx
+  DEPENDS:=@(TARGET_imx&&!TARGET_imx_cortexa53) +kmod-backlight kmod-drm-imx
   KCONFIG:=CONFIG_DRM_IMX_LDB \
 	CONFIG_DRM_PANEL_SIMPLE \
 	CONFIG_DRM_PANEL=y \
@@ -1182,7 +1182,7 @@ $(eval $(call KernelPackage,video-dma))
 
 define KernelPackage/video-coda
   TITLE:=i.MX VPU support
-  DEPENDS:=@(TARGET_imx&&!TARGET_imx_cortexa7) +kmod-video-mem2mem +kmod-video-dma
+  DEPENDS:=@(TARGET_imx&&TARGET_imx_cortexa9) +kmod-video-mem2mem +kmod-video-dma
   KCONFIG:= \
   	CONFIG_VIDEO_CODA \
   	CONFIG_VIDEO_IMX_VDOA

target/linux/imx/Makefile

@@ -4,18 +4,15 @@
 
 include $(TOPDIR)/rules.mk
 
-ARCH:=arm
 BOARD:=imx
 BOARDNAME:=NXP i.MX
 FEATURES:=audio display fpu gpio pcie rtc usb usbgadget squashfs targz nand ubifs boot-part rootfs-part
-SUBTARGETS:=cortexa7 cortexa9
+SUBTARGETS:=cortexa7 cortexa9 cortexa53
 
 KERNEL_PATCHVER:=6.1
 
 include $(INCLUDE_DIR)/target.mk
 
-KERNELNAME:=zImage dtbs
-
 DEFAULT_PACKAGES += uboot-envtools mkf2fs e2fsprogs blkid
 
 $(eval $(call BuildTarget))

target/linux/imx/cortexa53/config-default

@@ -0,0 +1,164 @@
+CONFIG_64BIT=y
+CONFIG_ARCH_BINFMT_ELF_EXTRA_PHDRS=y
+CONFIG_ARCH_CORRECT_STACKTRACE_ON_KRETPROBE=y
+CONFIG_ARCH_DMA_ADDR_T_64BIT=y
+CONFIG_ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE=y
+CONFIG_ARCH_MMAP_RND_BITS=18
+CONFIG_ARCH_MMAP_RND_BITS_MAX=24
+CONFIG_ARCH_MMAP_RND_BITS_MIN=18
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=11
+CONFIG_ARCH_NXP=y
+CONFIG_ARCH_PROC_KCORE_TEXT=y
+CONFIG_ARCH_STACKWALK=y
+CONFIG_ARCH_WANTS_NO_INSTR=y
+CONFIG_ARCH_WANTS_THP_SWAP=y
+CONFIG_ARM64=y
+CONFIG_ARM64_4K_PAGES=y
+CONFIG_ARM64_ERRATUM_843419=y
+CONFIG_ARM64_LD_HAS_FIX_ERRATUM_843419=y
+CONFIG_ARM64_PAGE_SHIFT=12
+CONFIG_ARM64_PA_BITS=48
+CONFIG_ARM64_PA_BITS_48=y
+CONFIG_ARM64_TAGGED_ADDR_ABI=y
+CONFIG_ARM64_VA_BITS=39
+CONFIG_ARM64_VA_BITS_39=y
+CONFIG_ARM_AMBA=y
+CONFIG_ARM_GIC=y
+CONFIG_ARM_GIC_V2M=y
+CONFIG_ARM_GIC_V3=y
+CONFIG_ARM_GIC_V3_ITS=y
+CONFIG_ARM_GIC_V3_ITS_PCI=y
+# CONFIG_ARM_IMX8M_DDRC_DEVFREQ is not set
+CONFIG_ARM_IMX_BUS_DEVFREQ=y
+CONFIG_ARM_IMX_CPUFREQ_DT=y
+CONFIG_ARM_PSCI_FW=y
+CONFIG_AUDIT_ARCH_COMPAT_GENERIC=y
+CONFIG_BLK_MQ_PCI=y
+CONFIG_CC_HAVE_SHADOW_CALL_STACK=y
+CONFIG_CC_HAVE_STACKPROTECTOR_SYSREG=y
+CONFIG_CLK_IMX8MM=y
+CONFIG_CLK_IMX8MN=y
+CONFIG_CLK_IMX8MP=y
+CONFIG_CLK_IMX8MQ=y
+CONFIG_CMA=y
+CONFIG_CMA_AREAS=7
+# CONFIG_CMA_DEBUG is not set
+# CONFIG_CMA_DEBUGFS is not set
+# CONFIG_CMA_SYSFS is not set
+CONFIG_CONSOLE_TRANSLATIONS=y
+CONFIG_CONTIG_ALLOC=y
+CONFIG_CRYPTO_AES_ARM64=y
+CONFIG_CRYPTO_AES_ARM64_CE=y
+CONFIG_CRYPTO_AES_ARM64_CE_BLK=y
+CONFIG_CRYPTO_AES_ARM64_CE_CCM=y
+CONFIG_CRYPTO_GHASH_ARM64_CE=y
+CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y
+CONFIG_CRYPTO_SHA1_ARM64_CE=y
+CONFIG_CRYPTO_SHA256_ARM64=y
+CONFIG_CRYPTO_SHA2_ARM64_CE=y
+CONFIG_CRYPTO_SHA512_ARM64=y
+CONFIG_CRYPTO_SHA512_ARM64_CE=y
+# CONFIG_DRM_IMX_DCSS is not set
+# CONFIG_DEVFREQ_GOV_PASSIVE is not set
+# CONFIG_DEVFREQ_GOV_PERFORMANCE is not set
+# CONFIG_DEVFREQ_GOV_POWERSAVE is not set
+# CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND is not set
+CONFIG_DEVFREQ_GOV_USERSPACE=y
+# CONFIG_DEVFREQ_THERMAL is not set
+# CONFIG_DMA_CMA is not set
+CONFIG_DMA_DIRECT_REMAP=y
+CONFIG_DUMMY_CONSOLE=y
+CONFIG_DWMAC_DWC_QOS_ETH=y
+CONFIG_DWMAC_GENERIC=y
+CONFIG_DWMAC_IMX8=y
+CONFIG_EXTCON_USB_GPIO=y
+CONFIG_EXTRA_FIRMWARE="imx/sdma/sdma-imx7d.bin"
+CONFIG_EXTRA_FIRMWARE_DIR="firmware"
+CONFIG_FRAME_POINTER=y
+CONFIG_GCC_SUPPORTS_DYNAMIC_FTRACE_WITH_REGS=y
+CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
+CONFIG_GENERIC_CSUM=y
+CONFIG_GENERIC_IOREMAP=y
+CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
+CONFIG_GENERIC_PHY=y
+CONFIG_GPIO_PCA953X=y
+CONFIG_GPIO_PCA953X_IRQ=y
+CONFIG_HW_CONSOLE=y
+CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
+CONFIG_IMX8MM_THERMAL=y
+CONFIG_IMX_GPCV2=y
+CONFIG_IMX_GPCV2_PM_DOMAINS=y
+CONFIG_INPUT=y
+CONFIG_INTERCONNECT=y
+CONFIG_INTERCONNECT_IMX=y
+CONFIG_INTERCONNECT_IMX8MM=y
+CONFIG_INTERCONNECT_IMX8MN=y
+CONFIG_INTERCONNECT_IMX8MP=y
+CONFIG_INTERCONNECT_IMX8MQ=y
+CONFIG_MEMORY_ISOLATION=y
+# CONFIG_MMC_SDHCI_PCI is not set
+CONFIG_MODULES_USE_ELF_RELA=y
+CONFIG_NEED_SG_DMA_LENGTH=y
+CONFIG_NOP_USB_XCEIV=y
+CONFIG_PARTITION_PERCPU=y
+CONFIG_PCI=y
+CONFIG_PCIEAER=y
+CONFIG_PCIEPORTBUS=y
+CONFIG_PCIE_DW=y
+CONFIG_PCIE_DW_HOST=y
+CONFIG_PCIE_PME=y
+CONFIG_PCI_DOMAINS=y
+CONFIG_PCI_DOMAINS_GENERIC=y
+CONFIG_PCI_IMX6=y
+CONFIG_PCI_MSI=y
+CONFIG_PCI_MSI_IRQ_DOMAIN=y
+CONFIG_PCS_XPCS=y
+CONFIG_PGTABLE_LEVELS=3
+CONFIG_PHYLIB_LEDS=y
+CONFIG_PHYS_ADDR_T_64BIT=y
+CONFIG_PHY_FSL_IMX8MQ_USB=y
+CONFIG_PHY_FSL_IMX8M_PCIE=y
+# CONFIG_PHY_MIXEL_LVDS_PHY is not set
+CONFIG_PINCTRL_IMX=y
+CONFIG_PINCTRL_IMX8MM=y
+CONFIG_PINCTRL_IMX8MN=y
+CONFIG_PINCTRL_IMX8MP=y
+CONFIG_PINCTRL_IMX8MQ=y
+CONFIG_PM_DEVFREQ=y
+# CONFIG_PM_DEVFREQ_EVENT is not set
+CONFIG_PM_GENERIC_DOMAINS=y
+CONFIG_PM_GENERIC_DOMAINS_OF=y
+CONFIG_POSIX_CPU_TIMERS_TASK_WORK=y
+CONFIG_POWER_RESET=y
+CONFIG_POWER_SUPPLY=y
+CONFIG_QUEUED_RWLOCKS=y
+CONFIG_QUEUED_SPINLOCKS=y
+CONFIG_REGULATOR_MP5416=y
+CONFIG_REGULATOR_PCA9450=y
+CONFIG_RESET_IMX7=y
+CONFIG_RODATA_FULL_DEFAULT_ENABLED=y
+CONFIG_SOC_IMX8M=y
+CONFIG_SPARSEMEM=y
+CONFIG_SPARSEMEM_EXTREME=y
+CONFIG_SPARSEMEM_VMEMMAP=y
+CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
+CONFIG_STMMAC_ETH=y
+CONFIG_STMMAC_PLATFORM=y
+CONFIG_SWIOTLB=y
+CONFIG_SYSCTL_EXCEPTION_TRACE=y
+CONFIG_TIMER_IMX_SYS_CTR=y
+CONFIG_TRACE_IRQFLAGS_NMI_SUPPORT=y
+CONFIG_UNMAP_KERNEL_AT_EL0=y
+CONFIG_USB_CONN_GPIO=y
+CONFIG_USB_DWC3=y
+CONFIG_USB_DWC3_DUAL_ROLE=y
+# CONFIG_USB_DWC3_GADGET is not set
+# CONFIG_USB_DWC3_HOST is not set
+CONFIG_USB_DWC3_IMX8MP=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_XHCI_PLATFORM=y
+CONFIG_VMAP_STACK=y
+CONFIG_VT=y
+CONFIG_VT_CONSOLE=y
+CONFIG_VT_HW_CONSOLE_BINDING=y
+CONFIG_ZONE_DMA32=y

target/linux/imx/cortexa53/target.mk

@@ -0,0 +1,8 @@
+ARCH:=aarch64
+BOARDNAME:=NXP i.MX with Cortex-A53 (ARM64)
+CPU_TYPE:=cortex-a53
+KERNELNAME:=Image dtbs
+
+define Target/Description
+	Build firmware images for NXP i.MX (Cortex-A53) based boards.
+endef

target/linux/imx/cortexa7/target.mk

@@ -1,6 +1,8 @@
+ARCH:=arm
 BOARDNAME:=NXP i.MX with Cortex-A7
 CPU_TYPE:=cortex-a7
 CPU_SUBTYPE:=neon-vfpv4
+KERNELNAME:=zImage dtbs
 
 define Target/Description
 	Build firmware images for NXP i.MX (Cortex-A7) based boards.

target/linux/imx/cortexa9/target.mk

@@ -1,6 +1,8 @@
+ARCH:=arm
 BOARDNAME:=NXP i.MX with Cortex-A9
 CPU_TYPE:=cortex-a9
 CPU_SUBTYPE:=neon
+KERNELNAME:=zImage dtbs
 
 define Target/Description
 	Build firmware images for NXP i.MX (Cortex-A9) based boards.

target/linux/imx/image/cortexa53.mk

@@ -0,0 +1,15 @@
+define Device/Default
+  PROFILES := Default
+  FILESYSTEMS := squashfs ubifs ext4
+  DEVICE_DTS_DIR := $(DTS_DIR)/freescale
+  KERNEL_INSTALL := 1
+  KERNEL_NAME := Image
+  KERNEL := kernel-bin
+endef
+
+define Device/imx8m
+  DEVICE_VENDOR := NXP
+  DEVICE_MODEL := i.MX8M
+  DEVICE_DTS := $(basename $(notdir $(wildcard $(DTS_DIR)/freescale/imx8m*.dts)))
+endef
+TARGET_DEVICES += imx8m