imx: split into arch-specific subtargets

Modern NXP i.MX series includes several different families, based on
single- or multi-core Arm Cortex-A CPUs. To be able to support more
families within a single target, we split the 'imx' in arch-specific
subtargets, starting with 'cortexa9' for the Cortex-A9 based i.MX 6,
already supported by the original 'imx6' target.

Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>

target/linux/imx/Makefile

@@ -8,8 +8,7 @@ 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
-CPU_TYPE:=cortex-a9
-CPU_SUBTYPE:=neon
+SUBTARGETS:=cortexa9
 
 KERNEL_PATCHVER:=5.4
 KERNEL_TESTING_PATCHVER:=5.10

target/linux/imx/config-5.10

@@ -1,4 +1,3 @@
-CONFIG_AHCI_IMX=y
 CONFIG_ALIGNMENT_TRAP=y
 CONFIG_ARCH_32BIT_OFF_T=y
 CONFIG_ARCH_HIBERNATION_POSSIBLE=y
@@ -18,16 +17,13 @@ CONFIG_ARCH_SUSPEND_POSSIBLE=y
 CONFIG_ARM=y
 CONFIG_ARM_ARCH_TIMER=y
 CONFIG_ARM_ARCH_TIMER_EVTSTREAM=y
-CONFIG_ARM_CPU_SUSPEND=y
 CONFIG_ARM_CRYPTO=y
 CONFIG_ARM_ERRATA_754322=y
 CONFIG_ARM_ERRATA_764369=y
 CONFIG_ARM_ERRATA_775420=y
 CONFIG_ARM_ERRATA_814220=y
-CONFIG_ARM_GIC=y
 CONFIG_ARM_HAS_SG_CHAIN=y
 CONFIG_ARM_HEAVY_MB=y
-CONFIG_ARM_IMX6Q_CPUFREQ=y
 # CONFIG_ARM_IMX_CPUFREQ_DT is not set
 CONFIG_ARM_L1_CACHE_SHIFT=6
 CONFIG_ARM_L1_CACHE_SHIFT_6=y
@@ -40,27 +36,22 @@ CONFIG_ASN1=y
 CONFIG_ASSOCIATIVE_ARRAY=y
 CONFIG_ATA=y
 CONFIG_ATAGS=y
+# CONFIG_ATA_SFF is not set
 CONFIG_AUTO_ZRELADDR=y
 CONFIG_BINFMT_FLAT_ARGVP_ENVP_ON_STACK=y
 CONFIG_BLK_DEV_LOOP=y
-CONFIG_BLK_MQ_PCI=y
 CONFIG_BLK_PM=y
 CONFIG_BLK_SCSI_REQUEST=y
 CONFIG_CACHE_L2X0=y
 CONFIG_CLKDEV_LOOKUP=y
 CONFIG_CLKSRC_IMX_GPT=y
 CONFIG_CLKSRC_MMIO=y
-CONFIG_CLK_IMX6Q=y
-CONFIG_CLK_IMX6SL=y
-CONFIG_CLK_IMX6SX=y
 # CONFIG_CLK_IMX8MM is not set
 # CONFIG_CLK_IMX8MN is not set
 # CONFIG_CLK_IMX8MP is not set
 # CONFIG_CLK_IMX8MQ is not set
 CONFIG_CLONE_BACKWARDS=y
 CONFIG_CLZ_TAB=y
-CONFIG_CMDLINE="pci=nomsi"
-CONFIG_CMDLINE_EXTEND=y
 CONFIG_COMMON_CLK=y
 CONFIG_COMPAT_32BIT_TIME=y
 CONFIG_CPUFREQ_DT=y
@@ -162,7 +153,6 @@ CONFIG_DMA_OPS=y
 CONFIG_DMA_REMAP=y
 CONFIG_DMA_VIRTUAL_CHANNELS=y
 CONFIG_DTC=y
-CONFIG_E1000E=y
 CONFIG_EDAC_ATOMIC_SCRUB=y
 CONFIG_EDAC_SUPPORT=y
 CONFIG_ENCRYPTED_KEYS=y
@@ -173,10 +163,9 @@ CONFIG_EXTCON=y
 CONFIG_EXTRA_FIRMWARE="imx/sdma/sdma-imx6q.bin"
 CONFIG_EXTRA_FIRMWARE_DIR="firmware"
 CONFIG_F2FS_FS=y
-CONFIG_FEC=y
+# CONFIG_FEC is not set
 CONFIG_FIXED_PHY=y
 CONFIG_FIX_EARLYCON_MEM=y
-CONFIG_FSL_GUTS=y
 CONFIG_FS_ENCRYPTION=y
 CONFIG_FS_ENCRYPTION_ALGS=y
 CONFIG_FS_IOMAP=y
@@ -193,12 +182,9 @@ CONFIG_GENERIC_EARLY_IOREMAP=y
 CONFIG_GENERIC_GETTIMEOFDAY=y
 CONFIG_GENERIC_IDLE_POLL_SETUP=y
 CONFIG_GENERIC_IRQ_CHIP=y
-CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
 CONFIG_GENERIC_IRQ_MULTI_HANDLER=y
 CONFIG_GENERIC_IRQ_SHOW=y
 CONFIG_GENERIC_IRQ_SHOW_LEVEL=y
-CONFIG_GENERIC_MSI_IRQ=y
-CONFIG_GENERIC_MSI_IRQ_DOMAIN=y
 CONFIG_GENERIC_PCI_IOMAP=y
 CONFIG_GENERIC_PINCONF=y
 CONFIG_GENERIC_PINCTRL_GROUPS=y
@@ -212,11 +198,8 @@ CONFIG_GENERIC_VDSO_32=y
 # CONFIG_GIANFAR is not set
 CONFIG_GLOB=y
 CONFIG_GPIOLIB=y
-CONFIG_GPIOLIB_IRQCHIP=y
 CONFIG_GPIO_GENERIC=y
 CONFIG_GPIO_MXC=y
-CONFIG_GPIO_PCA953X=y
-CONFIG_GPIO_PCA953X_IRQ=y
 CONFIG_GRO_CELLS=y
 CONFIG_HANDLE_DOMAIN_IRQ=y
 CONFIG_HARDEN_BRANCH_PREDICTOR=y
@@ -227,7 +210,6 @@ CONFIG_HAS_IOPORT_MAP=y
 CONFIG_HAVE_SMP=y
 CONFIG_HWMON=y
 CONFIG_HW_RANDOM=y
-CONFIG_HW_RANDOM_IMX_RNGC=y
 CONFIG_HZ_FIXED=0
 CONFIG_HZ_PERIODIC=y
 CONFIG_I2C=y
@@ -245,7 +227,6 @@ CONFIG_IMX_IRQSTEER=y
 CONFIG_IMX_SDMA=y
 CONFIG_IMX_THERMAL=y
 # CONFIG_IMX_WEIM is not set
-# CONFIG_INITRAMFS_FORCE is not set
 CONFIG_INITRAMFS_SOURCE=""
 CONFIG_IO_URING=y
 CONFIG_IRQCHIP=y
@@ -262,24 +243,19 @@ CONFIG_LOCK_DEBUGGING_SUPPORT=y
 CONFIG_LOCK_SPIN_ON_OWNER=y
 CONFIG_LZO_COMPRESS=y
 CONFIG_LZO_DECOMPRESS=y
-CONFIG_MARVELL_PHY=y
 CONFIG_MDIO_BUS=y
 CONFIG_MDIO_DEVICE=y
 CONFIG_MDIO_DEVRES=y
 CONFIG_MEMFD_CREATE=y
 CONFIG_MFD_SYSCON=y
-CONFIG_MICREL_PHY=y
 CONFIG_MIGHT_HAVE_CACHE_L2X0=y
 CONFIG_MIGRATION=y
 CONFIG_MMC=y
 CONFIG_MMC_BLOCK=y
 CONFIG_MMC_CQHCI=y
 # CONFIG_MMC_MXC is not set
 CONFIG_MMC_SDHCI=y
-CONFIG_MMC_SDHCI_ESDHC_IMX=y
-CONFIG_MMC_SDHCI_IO_ACCESSORS=y
-CONFIG_MMC_SDHCI_OF_ESDHC=y
-# CONFIG_MMC_SDHCI_PCI is not set
+# CONFIG_MMC_SDHCI_ESDHC_IMX is not set
 CONFIG_MMC_SDHCI_PLTFM=y
 CONFIG_MODULES_USE_ELF_REL=y
 CONFIG_MPILIB=y
@@ -300,9 +276,6 @@ CONFIG_NEED_DMA_MAP_STATE=y
 CONFIG_NEON=y
 CONFIG_NET_DEVLINK=y
 CONFIG_NET_DSA=y
-# CONFIG_NET_DSA_MSCC_FELIX is not set
-CONFIG_NET_DSA_MV88E6XXX=y
-CONFIG_NET_DSA_MV88E6XXX_GLOBAL2=y
 CONFIG_NET_DSA_TAG_DSA=y
 CONFIG_NET_DSA_TAG_EDSA=y
 CONFIG_NET_FLOW_LIMIT=y
@@ -331,35 +304,18 @@ CONFIG_OUTER_CACHE=y
 CONFIG_OUTER_CACHE_SYNC=y
 CONFIG_PADATA=y
 CONFIG_PAGE_OFFSET=0x80000000
-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_PERF_USE_VMALLOC=y
 CONFIG_PGTABLE_LEVELS=2
 CONFIG_PHYLIB=y
 CONFIG_PHYLINK=y
 CONFIG_PINCTRL=y
-CONFIG_PINCTRL_IMX=y
-CONFIG_PINCTRL_IMX6Q=y
-CONFIG_PINCTRL_IMX6SL=y
-CONFIG_PINCTRL_IMX6SX=y
 # CONFIG_PINCTRL_IMX8MM is not set
 # CONFIG_PINCTRL_IMX8MN is not set
 # CONFIG_PINCTRL_IMX8MP is not set
 # CONFIG_PINCTRL_IMX8MQ is not set
 CONFIG_PL310_ERRATA_769419=y
 CONFIG_PM=y
 CONFIG_PM_CLK=y
-CONFIG_PM_GENERIC_DOMAINS=y
-CONFIG_PM_GENERIC_DOMAINS_OF=y
 CONFIG_PM_OPP=y
 CONFIG_PPS=y
 CONFIG_PTP_1588_CLOCK=y
@@ -375,28 +331,20 @@ CONFIG_RD_GZIP=y
 CONFIG_RD_LZO=y
 CONFIG_RD_XZ=y
 CONFIG_REGMAP=y
-CONFIG_REGMAP_I2C=y
 CONFIG_REGMAP_MMIO=y
 CONFIG_REGULATOR=y
-CONFIG_REGULATOR_ANATOP=y
 CONFIG_REGULATOR_FIXED_VOLTAGE=y
-CONFIG_REGULATOR_LTC3676=y
-CONFIG_REGULATOR_PFUZE100=y
 CONFIG_RESET_CONTROLLER=y
 CONFIG_RFS_ACCEL=y
 CONFIG_RPS=y
 CONFIG_RTC_CLASS=y
 # CONFIG_RTC_DRV_CMOS is not set
-CONFIG_RTC_DRV_DS1307=y
-CONFIG_RTC_DRV_DS1672=y
 # CONFIG_RTC_DRV_IMXDI is not set
 # CONFIG_RTC_DRV_MXC is not set
 # CONFIG_RTC_DRV_MXC_V2 is not set
 CONFIG_RTC_I2C_AND_SPI=y
 CONFIG_RWSEM_SPIN_ON_OWNER=y
-CONFIG_SATA_HOST=y
 CONFIG_SCSI=y
-CONFIG_SENSORS_AD7418=y
 CONFIG_SERIAL_8250_FSL=y
 CONFIG_SERIAL_IMX=y
 CONFIG_SERIAL_IMX_CONSOLE=y
@@ -410,11 +358,10 @@ CONFIG_SOC_BUS=y
 # CONFIG_SOC_IMX50 is not set
 # CONFIG_SOC_IMX51 is not set
 # CONFIG_SOC_IMX53 is not set
-CONFIG_SOC_IMX6=y
-CONFIG_SOC_IMX6Q=y
-CONFIG_SOC_IMX6SL=y
+# CONFIG_SOC_IMX6Q is not set
+# CONFIG_SOC_IMX6SL is not set
 # CONFIG_SOC_IMX6SLL is not set
-CONFIG_SOC_IMX6SX=y
+# CONFIG_SOC_IMX6SX is not set
 # CONFIG_SOC_IMX6UL is not set
 # CONFIG_SOC_IMX7D is not set
 # CONFIG_SOC_IMX7ULP is not set