From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3633842BC5E; Wed, 30 Sep 2026 10:20:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790763611; cv=none; b=UsncuZfdlW3ClXDixynCrTxmY28WzhXb7AUt1IG30qYDhgToNfXSKUBenHwYkWalbe+oQqez09RyTXiZm+t4h+SsIj0/BsPVdIKEnzLcI6L5ol2AwSXawoYnd4SIhvfM2BiZTFwz2kNhLjiWp5pvDkZ5jcVonwh1MU9PfssrNtM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790763611; c=relaxed/simple; bh=IugdZ3EXEe2orCv4ayb1STvy1uJLh1VvgS5x738HfMw=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=DtvfgqoYwV6aFAPgUws1sk5JEtzQ8xtHSGfAyutGMIW6BH/nQTmPeDU81v/zDEe85TY82xdrFSPS16AquamgXyhmBZtJbTETIsACXmJruh7alpMJfwXz4dJ9aEJba8FjNlmiqy1DhX27aBH+PKUb0DROZNaS28/cdgQgF/Ev4t0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=PQo9k3lW; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="PQo9k3lW" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 268F61F000FF; Wed, 30 Sep 2026 10:20:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1790763609; bh=bgI5ThfkOHp73+98hwAroH2Qf9Rfwf7MYgXHto/tNOg=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=PQo9k3lW4tol8ce0j7h+h56PwhmObNH4YsrHD04UVvuVY/rTcU7T1sM5B0/m3Cjdp vHd65uvfiWt7XUs0Y9QSi3CEgiRYR+/HPi5o9VT37upquABXcgtPQI3tAlw+c4TVhP lzXRL8nuCGNPSmMCQb7bJaZypZC9tTxSxtL+Ugx7tBCAgpoBr5Cld7odz5nFXmi6Gt Er4d0pWyXlAgLGTUPQJbSDpqwOb5NHayn8VgH71bphzRflCuyO4HAwJOyGBGoxWvdt FYg0SSP6cJyn0I7b8kZBLaqjm+g+UGCfHcnUvmpRqXoOfJVfGLaArqMABgnDQCD283 ++9KxyP49OwXg== Message-ID: <65c87e07-1722-44c2-9a08-ed9e18902058@kernel.org> Date: Wed, 30 Sep 2026 12:20:01 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH RFC 04/10] ARM: cortina: Add support for the CS75xx SoC family To: filipp.dunsky@gmail.com, Arnd Bergmann , Linus Walleij Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Greg Kroah-Hartman , Jiri Slaby , Russell King , Alexandre Belloni , Drew Fustini , Lorenzo Pieralisi , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org References: <20260930-b4-cs75xx-v1-0-4617c4463529@gmail.com> <20260930-b4-cs75xx-v1-4-4617c4463529@gmail.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 30/09/2026 09:00, Fil Dunsky via B4 Relay wrote: > From: Fil Dunsky > > The Cortina Systems CS75xx ("Goldengate G2") are network processors > with two Cortex-A9 cores, an SCU, GIC, the Cortex-A9 global and private > timers and a PL310 L2 cache controller. The CS7542 is used, among others, > in the Securifi Almond+ router. > > The generic DT machine is sufficient for the platform, so only the SMP > bring-up needs code: the bootloader parks the secondary core in a WFE > loop that polls a global software register, so boot it by writing the > physical address of secondary_startup to the register named by the > cpu-release-addr property and issuing SEV. > > The CPU is a Cortex-A9 r2p1, so select the errata workarounds that apply > to that revision and can be enabled on a multiplatform kernel. The PL310 > is r3p2 and needs none of the PL310 workarounds. How is it different from Cortina Gemini? > > Signed-off-by: Fil Dunsky > --- > arch/arm/Kconfig | 2 ++ > arch/arm/Makefile | 1 + > arch/arm/mach-cortina/Kconfig | 18 +++++++++++ > arch/arm/mach-cortina/Makefile | 2 ++ > arch/arm/mach-cortina/platsmp.c | 71 +++++++++++++++++++++++++++++++++++++++++ > 5 files changed, 94 insertions(+) > > diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig > index 0cc289a7184..c4bfdc115ec 100644 > --- a/arch/arm/Kconfig > +++ b/arch/arm/Kconfig > @@ -377,6 +377,8 @@ source "arch/arm/mach-berlin/Kconfig" > > source "arch/arm/mach-clps711x/Kconfig" > > +source "arch/arm/mach-cortina/Kconfig" > + > source "arch/arm/mach-davinci/Kconfig" > > source "arch/arm/mach-digicolor/Kconfig" > diff --git a/arch/arm/Makefile b/arch/arm/Makefile > index 573813ef5e7..f8a7090d047 100644 > --- a/arch/arm/Makefile > +++ b/arch/arm/Makefile > @@ -181,6 +181,7 @@ machine-$(CONFIG_ARCH_AXXIA) += axxia > machine-$(CONFIG_ARCH_BCM) += bcm > machine-$(CONFIG_ARCH_BERLIN) += berlin > machine-$(CONFIG_ARCH_CLPS711X) += clps711x > +machine-$(CONFIG_ARCH_CORTINA_CS75XX) += cortina Arch should be rather per entire family, not one SoC. Best regards, Krzysztof