Add RPI4 32 bits not working support

root/target/linux/brcm2708/bcm2709/config-4.19

@@ -2,6 +2,7 @@
 CONFIG_ALIGNMENT_TRAP=y
 CONFIG_ARCH_BCM=y
 CONFIG_ARCH_BCM2835=y
+CONFIG_ARCH_CRYPTO=y
 # CONFIG_ARCH_BCM_HR2 is not set
 CONFIG_ARCH_CLOCKSOURCE_DATA=y
 CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
@@ -42,7 +43,7 @@ CONFIG_ARM_CPU_SUSPEND=y
 CONFIG_ARM_HAS_SG_CHAIN=y
 CONFIG_ARM_L1_CACHE_SHIFT=6
 CONFIG_ARM_L1_CACHE_SHIFT_6=y
-# CONFIG_ARM_LPAE is not set
+CONFIG_ARM_LPAE=y
 CONFIG_ARM_PATCH_IDIV=y
 CONFIG_ARM_PATCH_PHYS_VIRT=y
 # CONFIG_ARM_SCMI_PROTOCOL is not set
@@ -64,6 +65,7 @@ CONFIG_BCM2835_TIMER=y
 CONFIG_BCM2835_VCHIQ=y
 # CONFIG_BCM2835_VCHIQ_SUPPORT_MEMDUMP is not set
 CONFIG_BCM2835_WDT=y
+CONFIG_BCMGENET=y
 CONFIG_BCM_VCIO=y
 CONFIG_BCM_VC_SM=y
 CONFIG_BCM_VIDEOCORE=y
@@ -75,6 +77,9 @@ CONFIG_BLK_DEV_RAM_SIZE=4096
 CONFIG_BLK_DEV_SD=y
 CONFIG_BLK_SCSI_REQUEST=y
 CONFIG_BRCM_CHAR_DRIVERS=y
+CONFIG_BRCMFMAC_USB=y
+CONFIG_BRCMSTB_THERMAL=y
+CONFIG_BROADCOM_PHY=y
 CONFIG_BUILD_BIN2C=y
 # CONFIG_CACHE_L2X0 is not set
 CONFIG_CLKDEV_LOOKUP=y
@@ -131,7 +136,9 @@ CONFIG_CPU_V7=y
 CONFIG_CRC16=y
 CONFIG_CRYPTO_AEAD=y
 CONFIG_CRYPTO_AEAD2=y
+CONFIG_CRYPTO_CBC=y
 CONFIG_CRYPTO_CRC32C=y
+CONFIG_CRYPTO_DES=y
 CONFIG_CRYPTO_HASH=y
 CONFIG_CRYPTO_HASH2=y
 CONFIG_CRYPTO_MANAGER=y
@@ -309,23 +316,26 @@ CONFIG_MAGIC_SYSRQ=y
 CONFIG_MAILBOX=y
 # CONFIG_MAILBOX_TEST is not set
 CONFIG_MAX_RAW_DEVS=256
+CONFIG_MD=y
 # CONFIG_MDIO_BUS is not set
 CONFIG_MEMORY_ISOLATION=y
 CONFIG_MFD_ARIZONA=y
+CONFIG_MFD_STMPE=y
+CONFIG_MFD_WM5102=y
 CONFIG_MFD_SYSCON=y
 # CONFIG_MFD_RPISENSE_CORE is not set
 CONFIG_MIGHT_HAVE_CACHE_L2X0=y
 CONFIG_MIGHT_HAVE_PCI=y
 CONFIG_MIGRATION=y
 CONFIG_MMC=y
-CONFIG_MMC_BCM2835=y
+# CONFIG_MMC_BCM2835 is not set
 CONFIG_MMC_BCM2835_DMA=y
 CONFIG_MMC_BCM2835_MMC=y
-CONFIG_MMC_BCM2835_PIO_DMA_BARRIER=2
 CONFIG_MMC_BCM2835_SDHOST=y
 CONFIG_MMC_BLOCK=y
 CONFIG_MMC_BLOCK_MINORS=32
 CONFIG_MMC_SDHCI=y
+# CONFIG_MMC_SDHCI_IPROC us not set
 CONFIG_MMC_SDHCI_PLTFM=y
 CONFIG_MODULES_USE_ELF_REL=y
 # CONFIG_MTD is not set
@@ -359,6 +369,9 @@ CONFIG_OLD_SIGACTION=y
 CONFIG_OLD_SIGSUSPEND3=y
 CONFIG_PADATA=y
 CONFIG_PAGE_OFFSET=0x80000000
+CONFIG_PCI=y
+CONFIG_PCIE_BRCMSTB=y
+CONFIG_PCI_MSI=y
 # CONFIG_PCI_DOMAINS_GENERIC is not set
 # CONFIG_PCI_SYSCALL is not set
 CONFIG_PERF_USE_VMALLOC=y
@@ -446,6 +459,7 @@ CONFIG_UEVENT_HELPER_PATH=""
 # CONFIG_UID16 is not set
 CONFIG_UNCOMPRESS_INCLUDE="debug/uncompress.h"
 CONFIG_USB=y
+CONFIG_USB_ALI_M5632=y
 CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
 CONFIG_USB_COMMON=y
 CONFIG_USB_DWCOTG=y

root/target/linux/brcm2708/bcm2711/config-4.19

@@ -160,7 +160,7 @@ CONFIG_CMA_ALIGNMENT=8
 CONFIG_CMA_AREAS=7
 # CONFIG_CMA_DEBUG is not set
 # CONFIG_CMA_DEBUGFS is not set
-CONFIG_CMA_SIZE_MBYTES=5
+CONFIG_CMA_SIZE_MBYTES=16
 # CONFIG_CMA_SIZE_SEL_MAX is not set
 CONFIG_CMA_SIZE_SEL_MBYTES=y
 # CONFIG_CMA_SIZE_SEL_MIN is not set
@@ -442,6 +442,7 @@ CONFIG_NO_BOOTMEM=y
 CONFIG_NO_HZ=y
 CONFIG_NO_HZ_COMMON=y
 CONFIG_NO_HZ_IDLE=y
+CONFIG_NO_IOPORT_MAP=y
 CONFIG_NR_CPUS=4
 # CONFIG_NUMA is not set
 CONFIG_NVMEM=y

root/target/linux/brcm2708/image/Makefile

@@ -77,10 +77,11 @@ ifeq ($(SUBTARGET),bcm2708)
 endif
 
 define Device/rpi-2
-  DEVICE_TITLE := Raspberry Pi 2B/3B/3B+/3CM
+  DEVICE_TITLE := Raspberry Pi 2B/3B/3B+/3CM/4B
-  DEVICE_DTS := bcm2709-rpi-2-b bcm2710-rpi-3-b bcm2710-rpi-3-b-plus bcm2710-rpi-cm3
+  DEVICE_DTS := bcm2709-rpi-2-b bcm2710-rpi-3-b bcm2710-rpi-3-b-plus bcm2710-rpi-cm3 bcm2711-rpi-4-b
   SUPPORTED_DEVICES := \
-	rpi-2-b rpi-3-b rpi-3-b-plus rpi-cm \
+	rpi-2-b rpi-3-b rpi-3-b-plus rpi-cm rpi-4-b \
+	raspberrypi,4-model-b \
 	raspberrypi,2-model-b \
 	raspberrypi,3-model-b raspberrypi,3-model-b-plus \
 	raspberrypi,3-compute-module raspberrypi,compute-module-3
@@ -92,9 +93,10 @@ endif
 
 define Device/rpi-3
   KERNEL_IMG := kernel8.img
-  DEVICE_TITLE := Raspberry Pi 3B/3B+
+  DEVICE_TITLE := Raspberry Pi 3B/3B+/4B
-  DEVICE_DTS := broadcom/bcm2710-rpi-3-b broadcom/bcm2710-rpi-3-b-plus
+  DEVICE_DTS := broadcom/bcm2710-rpi-3-b broadcom/bcm2710-rpi-3-b-plus broadcom/bcm2711-rpi-4-b
   SUPPORTED_DEVICES := \
+	rpi-4-b raspberrypi,4-model-b \
 	rpi-3-b rpi-3-b-plus \
 	raspberrypi,3-model-b raspberrypi,3-model-b-plus \
 	raspberrypi,3-compute-module raspberrypi,compute-module-3
@@ -105,13 +107,17 @@ ifeq ($(SUBTARGET),bcm2710)
 endif
 
 define Device/rpi-4
-  KERNEL_IMG := kernel9.img
+  KERNEL_IMG := kernel8.img
   DEVICE_TITLE := Raspberry Pi 4B
-  DEVICE_DTS := broadcom/bcm2711-rpi-4-b
+  DEVICE_DTS := broadcom/bcm2710-rpi-3-b broadcom/bcm2710-rpi-3-b-plus broadcom/bcm2711-rpi-4-b
   SUPPORTED_DEVICES := \
-	rpi-4-b raspberrypi,4-model-b
+	rpi-4-b raspberrypi,4-model-b \
+	rpi-3-b rpi-3-b-plus \
+	raspberrypi,3-model-b raspberrypi,3-model-b-plus \
+	raspberrypi,3-compute-module raspberrypi,compute-module-3
   DEVICE_PACKAGES := brcmfmac-firmware-43430-sdio brcmfmac-board-rpi2 brcmfmac-firmware-43455-sdio brcmfmac-board-rpi3 kmod-brcmfmac wpad-basic
 endef
+
 ifeq ($(SUBTARGET),bcm2711)
   TARGET_DEVICES += rpi-4
 endif