The original Northstar is an ARM SoC series that comprise BCM4709x and BCM5301x and uses a dual-core Cortex A9, the global timer and a few other things.
This series should not be confused with North Star Plus (NSP) which is partly supported by U-Boot already.
The SoC is well supported by the Linux kernel and OpenWrt as it is used in many routers.
Since we currently don't need any chip-specific quirks and can get the system up from just the device tree, a mach-* directory doesn't even need to be added, just some small Kconfig fragments.
Cc: Rafał Miłecki rafal@milecki.pl Signed-off-by: Linus Walleij linus.walleij@linaro.org --- ChangeLog v4->v5: - Rebase on the U-Boot master branch ChangeLog v3->v4: - No changes ChangeLog v1->v3: - Bundle with the iproc nand and algo select patches --- arch/arm/Kconfig | 21 ++++++++++++++++++++- 1 file changed, 20 insertions(+), 1 deletion(-)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index f0118e225419..098f654e4bdd 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -357,7 +357,7 @@ config SYS_ARM_ARCH
choice prompt "Select the ARM data write cache policy" - default SYS_ARM_CACHE_WRITETHROUGH if TARGET_BCMCYGNUS || RZA1 + default SYS_ARM_CACHE_WRITETHROUGH if TARGET_BCMCYGNUS || TARGET_BCMNS || RZA1 default SYS_ARM_CACHE_WRITEBACK
config SYS_ARM_CACHE_WRITEBACK @@ -671,6 +671,25 @@ config TARGET_BCMCYGNUS imply HASH_VERIFY imply NETDEVICES
+config TARGET_BCMNS + bool "Support Broadcom Northstar" + select CPU_V7A + select DM + select DM_GPIO + select DM_SERIAL + select OF_CONTROL + select TIMER + select SYS_NS16550 + select ARM_GLOBAL_TIMER + imply SYS_THUMB_BUILD + imply MTD_RAW_NAND + imply NAND_BRCMNAND + imply NAND_BRCMNAND_IPROC + help + Support for Broadcom Northstar SoCs. NS is a dual-core 32-bit + ARMv7 Cortex-A9 SoC family including BCM4708, BCM47094, + BCM5301x etc. + config TARGET_BCMNS2 bool "Support Broadcom Northstar2" select ARM64