This adds the device trees and minimal code needed to run U-Boot on Broadcom Northstar SoCs.
This is needed to properly boot the D-Link DIR-890L router as it refuse to directly boot compressed kernels bigger than 2MB, and well our compressed kernel is bigger than 2MB so let's put in U-Boot.
While it is a bit tailored to this usecase (it can probably also be used with the DIR-885L without modifications) it forms a base that can be used to support more Northstar boards.
I have this working with DIR-890L and OpenWrt: https://dflund.se/~triad/krad/dlink-dir-890l/
Linus Walleij (3): arm: dts: Import device tree for Broadcom Northstar arm: Add support for the Broadcom Northstar SoCs board: Add new Broadcom Northstar board
arch/arm/Kconfig | 22 +- arch/arm/dts/Makefile | 2 + arch/arm/dts/bcm5301x.dtsi | 581 ++++++++++++++++++++++++++++ arch/arm/dts/ns-board.dts | 57 +++ board/broadcom/bcmns/Kconfig | 12 + board/broadcom/bcmns/MAINTAINERS | 6 + board/broadcom/bcmns/Makefile | 2 + board/broadcom/bcmns/ns.c | 60 +++ configs/bcmns_defconfig | 41 ++ include/configs/bcmns.h | 49 +++ include/dt-bindings/clock/bcm-nsp.h | 51 +++ 11 files changed, 882 insertions(+), 1 deletion(-) create mode 100644 arch/arm/dts/bcm5301x.dtsi create mode 100644 arch/arm/dts/ns-board.dts create mode 100644 board/broadcom/bcmns/Kconfig create mode 100644 board/broadcom/bcmns/MAINTAINERS create mode 100644 board/broadcom/bcmns/Makefile create mode 100644 board/broadcom/bcmns/ns.c create mode 100644 configs/bcmns_defconfig create mode 100644 include/configs/bcmns.h create mode 100644 include/dt-bindings/clock/bcm-nsp.h