configs/broadcom_northstar: new defconfig

Broadcom Northstar family of SoCs is most commonly used for home
routers. It's an ARM platform with Cortex-A9 CPU(s).

All known Northstar devices come with CFE bootloader which almost
always expects a TRX firmware format (with exception for D-Link). Some
vendors (like Luxul and Netgear) wrap TRX in their own containers.

This board code provides:

1. Minimal kernel with support for on-SoC blocks. It enables Linux
drivers for SoC, watchdog, Ethernet, switch, USB, PCIe, LEDs).

2. Post image script building firmware images. In uses Buildroot
packages tools (lzma_alone, otrx, lxlfw) to build
bootloader-compatible images that can be flashed.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2022.08.x
Rafał Miłecki 2022-03-10 13:12:29 +01:00 committed by Thomas Petazzoni
parent 7d0d3987e9
commit 1500b7d5c8
5 changed files with 164 additions and 0 deletions

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@ -2468,6 +2468,8 @@ F: board/avnet/s6lx9_microboard/
F: configs/s6lx9_microboard_defconfig
N: Rafał Miłecki <rafal@milecki.pl>
F: board/broadcom/northstar/
F: configs/broadcom_northstar_defconfig
F: package/firmware-utils/
N: Rahul Bedarkar <rahulbedarkar89@gmail.com>

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@ -0,0 +1,70 @@
CONFIG_EMBEDDED=y
CONFIG_ARCH_BCM=y
CONFIG_ARCH_BCM_5301X=y
CONFIG_ARCH_BCM_53573=y
CONFIG_SMP=y
CONFIG_NR_CPUS=2
CONFIG_HIGHMEM=y
CONFIG_ARM_APPENDED_DTB=y
CONFIG_CMDLINE="ubi.mtd=ubi root=ubi0:rootfs rootfstype=ubifs"
CONFIG_CMDLINE_FORCE=y
# CONFIG_SUSPEND is not set
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_BRIDGE=y
CONFIG_BRIDGE_VLAN_FILTERING=y
CONFIG_NET_DSA=y
CONFIG_VLAN_8021Q=y
CONFIG_PCI=y
CONFIG_BCM47XX_NVRAM=y
CONFIG_BCM47XX_SPROM=y
CONFIG_MTD=y
CONFIG_MTD_BCM47XX_PARTS=y
CONFIG_MTD_PARSER_TRX=y
CONFIG_MTD_BCM47XXSFLASH=y
CONFIG_MTD_RAW_NAND=y
CONFIG_MTD_NAND_BRCMNAND=y
CONFIG_MTD_SPI_NOR=y
CONFIG_MTD_UBI=y
CONFIG_NETDEVICES=y
CONFIG_VXLAN=y
CONFIG_VETH=y
CONFIG_B53=y
CONFIG_BGMAC_BCMA=y
CONFIG_BROADCOM_PHY=y
CONFIG_MDIO_BUS_MUX_MMIOREG=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_NR_UARTS=2
CONFIG_SERIAL_8250_RUNTIME_UARTS=2
CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_SPI=y
CONFIG_THERMAL=y
CONFIG_WATCHDOG=y
CONFIG_BCM47XX_WDT=y
CONFIG_BCMA_HOST_SOC=y
CONFIG_BCMA_DRIVER_GMAC_CMN=y
CONFIG_BCMA_DRIVER_GPIO=y
CONFIG_USB=y
CONFIG_USB_LEDS_TRIGGER_USBPORT=y
CONFIG_USB_XHCI_HCD=y
CONFIG_USB_XHCI_PLATFORM=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_OHCI_HCD=y
# CONFIG_USB_OHCI_HCD_PCI is not set
CONFIG_USB_HCD_BCMA=y
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
CONFIG_LEDS_GPIO=y
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=y
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
CONFIG_PHY_BCM_NS_USB2=y
CONFIG_PHY_BCM_NS_USB3=y
CONFIG_UBIFS_FS=y
CONFIG_DEBUG_LL=y
CONFIG_DEBUG_UNCOMPRESS=y
CONFIG_EARLY_PRINTK=y

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#!/bin/sh
# $1: images directory path
# $2: device dts filename
# $3: board id
build_lxl() {
local images="$1"
local device="$2"
local board="$3"
$HOST_DIR/bin/lzma_alone e $images/zImage.$device $images/zImage.$device.lzma -d16
rm -f $images/zImage.$device
$HOST_DIR/bin/otrx create $images/$device.trx -f $images/zImage.$device.lzma -a 0x20000 -f $images/rootfs.ubi
rm -f $images/zImage.$device.lzma
$HOST_DIR/bin/lxlfw create $images/$device.lxl -i $images/$device.trx -b "$board"
}
# $1: images directory path
# $2: device dts filename
build_trx() {
local images="$1"
local device="$2"
$HOST_DIR/bin/lzma_alone e $images/zImage.$device $images/zImage.$device.lzma -d16
rm -f $images/zImage.$device
$HOST_DIR/bin/otrx create $images/$device.trx -f $images/zImage.$device.lzma -a 0x20000 -f $images/rootfs.ubi
rm -f $images/zImage.$device.lzma
}
devices="$(sed -n 's/^BR2_LINUX_KERNEL_INTREE_DTS_NAME="\([a-z0-9 \-]*\)"$/\1/p' ${BR2_CONFIG})"
for device in $devices; do
case "$device" in
"bcm4708-smartrg-sr400ac")
build_trx "$1" "$device"
;;
"bcm47094-luxul-xwr-3150-v1")
build_lxl "$1" "$device" "XWR-3150"
;;
esac
done

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@ -0,0 +1,38 @@
Broadcom Northstar
Intro
=====
This readme covers Northstar family of Broadcom SoCs. It includes:
- BCM4708 (2 x 800 MHz)
- BCM47081 (1 x 800 MHz)
- BCM4709 (2 x 1 GHz)
- BCM47094 (2 x 1 GHz) (AKA BCM4709C0)
Northstar platform is used in some home routers by multiple vendors. There are
over 100 market devices based on it and they can all be supported with 1 kernel.
There is no point in having separated board for each model. This board code is
meant for all supported Northstar devices.
All Northstar devices come with CFE bootloader by default. It's basically closed
source as sources are available for some old releases only. There is no U-Boot (or
any other) drop-in replacement or second stage loader with Northstar support.
CFE supports flashing firmware images over TFTP and HTTP (depending on vendor /
device setup).
How to build it
===============
$ make broadcom_ns_defconfig
$ make
How to flash over HTTP
======================
Power on device and press (and hold) CTRL+C in serial console terminal. When CFE
gets into prompt mode it'll automatically start built-in HTTP server. Navigate
to http://192.168.1.1/ (unless IP was changed - verify with "ifconfig") and
upload new firmware using a web browser.

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BR2_arm=y
BR2_cortex_a9=y
BR2_ROOTFS_POST_IMAGE_SCRIPT="board/broadcom/northstar/post-image.sh"
BR2_LINUX_KERNEL=y
BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/broadcom/northstar/linux.config"
BR2_LINUX_KERNEL_APPENDED_ZIMAGE=y
BR2_LINUX_KERNEL_INTREE_DTS_NAME="bcm4708-smartrg-sr400ac bcm47094-luxul-xwr-3150-v1"
# BR2_TARGET_ROOTFS_TAR is not set
BR2_TARGET_ROOTFS_UBI=y
BR2_TARGET_ROOTFS_UBI_SUBSIZE=2048
BR2_TARGET_ROOTFS_UBIFS_LEBSIZE=0x1f000
BR2_PACKAGE_HOST_FIRMWARE_UTILS=y
BR2_PACKAGE_HOST_LZMA_ALONE=y