[PATCH RFC 04/10] ARM: cortina: Add support for the CS75xx SoC family

[Linus Walleij]

On Wed, Sep 30, 2026 at 12:57 PM Fil Dunsky <filipp.dunsky at gmail.com> wrote:
> On 30/09/2026 12:20, Krzysztof Kozlowski wrote:

> > How is it different from Cortina Gemini?
>
> Apart from the vendor, they have little in common. Gemini (SL3516/
> CS3516) is a single ARMv4 FA526 with Faraday peripherals (FTINTC010,
> FTTMR010, FTGPIO010, a 16550 UART) and builds for ARCH_MULTI_V4. The
> CS75xx ("Goldengate G2") is an ARMv7 dual Cortex-A9 MPCore with GIC,
> SCU, TWD/global timer and a PL310, and its UART, GPIO, interrupt
> controller and NAND controller are different blocks from the Gemini
> ones. So it cannot share mach-gemini or its drivers.
>
> >> +machine-$(CONFIG_ARCH_CORTINA_CS75XX)       += cortina
> >
> > Arch should be rather per entire family, not one SoC.
>
> CS75xx is meant as the family (the vendor kernel covers the CS7522 and
> CS7542 with one ARCH_GOLDENGATE), but I see the name reads like a
> single part. Following Linus' suggestion of mach-goldengate, v2 will
> use ARCH_GOLDENGATE and arch/arm/mach-goldengate for the whole family.

Put the rationale into the commit message, that's exactly what we want to
see in there.

Thanks!
Linus Walleij