bmips: add new target

This target has full device tree support, thus reducing the number of
patches needed for bcm63xx, in which there's a patch for every board.

The intention is to start with a minimal amount of downstream patches and
start upstreaming all of them.

Current status:
 - Enabling EHCI/OHCI on BCM6358 causes a kernel panic.
 - BCM63268 lacks Timer Clocks/Reset support.
 - No PCI/PCIe drivers.
 - No ethernet drivers.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Acked-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

1 files changed, 74 insertions, 0 deletions

diff --git a/target/linux/bmips/image/bcm63xx_generic.mk b/target/linux/bmips/image/bcm63xx_generic.mk
new file mode 100644
index 0000000000..6f9a7b9a49
--- /dev/null
+++ b/target/linux/bmips/image/bcm63xx_generic.mk
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+DEVICE_VARS += CFE_BOARD_ID CFE_EXTRAS
+DEVICE_VARS += FLASH_MB IMAGE_OFFSET
+
+define Device/bcm63xx-cfe
+  FILESYSTEMS := squashfs jffs2-64k jffs2-128k
+  KERNEL := kernel-bin | append-dtb | relocate-kernel | lzma
+  KERNEL_INITRAMFS := kernel-bin | append-dtb | lzma | loader-lzma elf
+  KERNEL_INITRAMFS_SUFFIX := .elf
+  IMAGES := cfe.bin sysupgrade.bin
+  IMAGE/cfe.bin := \
+    cfe-bin $$$$(if $$$$(FLASH_MB),--pad $$$$(shell expr $$$$(FLASH_MB) / 2))
+  IMAGE/sysupgrade.bin := cfe-bin | append-metadata
+  BLOCKSIZE := 0x10000
+  IMAGE_OFFSET :=
+  FLASH_MB :=
+  CFE_BOARD_ID :=
+  CFE_EXTRAS = --block-size $$(BLOCKSIZE) \
+    --image-offset $$(if $$(IMAGE_OFFSET),$$(IMAGE_OFFSET),$$(BLOCKSIZE))
+endef
+
+# Legacy CFEs with specific LZMA parameters and no length
+define Device/bcm63xx-cfe-legacy
+  $(Device/bcm63xx-cfe)
+  KERNEL := kernel-bin | append-dtb | relocate-kernel | lzma-cfe
+endef
+
+define Device/comtrend_ar-5315u
+  $(Device/bcm63xx-cfe)
+  DEVICE_VENDOR := Comtrend
+  DEVICE_MODEL := AR-5315u
+  CHIP_ID := 6318
+  CFE_BOARD_ID := 96318A-1441N1
+  FLASH_MB := 16
+  DEVICE_PACKAGES += $(USB2_PACKAGES)
+endef
+TARGET_DEVICES += comtrend_ar-5315u
+
+define Device/comtrend_ar-5387un
+  $(Device/bcm63xx-cfe)
+  DEVICE_VENDOR := Comtrend
+  DEVICE_MODEL := AR-5387un
+  CHIP_ID := 6328
+  CFE_BOARD_ID := 96328A-1441N1
+  FLASH_MB := 16
+  DEVICE_PACKAGES += $(USB2_PACKAGES)
+endef
+TARGET_DEVICES += comtrend_ar-5387un
+
+define Device/comtrend_vr-3025u
+  $(Device/bcm63xx-cfe)
+  DEVICE_VENDOR := Comtrend
+  DEVICE_MODEL := VR-3025u
+  CHIP_ID := 6368
+  CFE_BOARD_ID := 96368M-1541N
+  BLOCKSIZE := 0x20000
+  FLASH_MB := 32
+  DEVICE_PACKAGES += $(USB2_PACKAGES)
+endef
+TARGET_DEVICES += comtrend_vr-3025u
+
+define Device/huawei_hg556a-b
+  $(Device/bcm63xx-cfe-legacy)
+  DEVICE_VENDOR := Huawei
+  DEVICE_MODEL := EchoLife HG556a
+  DEVICE_VARIANT := B
+  CHIP_ID := 6358
+  CFE_BOARD_ID := HW556
+  CFE_EXTRAS += --rsa-signature "EchoLife_HG556a" --tag-version 8
+  BLOCKSIZE := 0x20000
+  DEVICE_PACKAGES += $(USB2_PACKAGES)
+endef
+TARGET_DEVICES += huawei_hg556a-b