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From: Arnd Bergmann <arnd@arndb.de>
To: Bert Vermeulen <bert@biot.com>
Cc: DTML <devicetree@vger.kernel.org>,
	"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
	"Linux ARM" <linux-arm-kernel@lists.infradead.org>,
	"Russell King" <linux@armlinux.org.uk>,
	"Arnd Bergmann" <arnd@arndb.de>,
	"Linus Walleij" <linus.walleij@linaro.org>,
	"Andrew Morton" <akpm@linux-foundation.org>,
	"Geert Uytterhoeven" <geert+renesas@glider.be>,
	"Anshuman Khandual" <anshuman.khandual@arm.com>,
	"Krzysztof Kozlowski" <krzysztof.kozlowski@canonical.com>,
	"John Crispin" <john@phrozen.org>,
	"Ard Biesheuvel" <ardb@kernel.org>,
	"YiFei Zhu" <yifeifz2@illinois.edu>,
	"Mike Rapoport" <rppt@kernel.org>,
	"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
	"Nick Desaulniers" <ndesaulniers@google.com>,
	"Kees Cook" <keescook@chromium.org>,
	"Masahiro Yamada" <masahiroy@kernel.org>,
	"Nathan Chancellor" <nathan@kernel.org>,
	"Viresh Kumar" <viresh.kumar@linaro.org>,
	"Felix Fietkau" <nbd@nbd.name>
Subject: Re: [PATCH 4/5] ARM: Add basic support for EcoNet EN7523 SoC
Date: Fri, 30 Jul 2021 16:48:28 +0200	[thread overview]
Message-ID: <CAK8P3a3OuJ3pMSdEA4Rt3aWvvuX2+_Bg5x7-kZ1++fvvJvgGxA@mail.gmail.com> (raw)
In-Reply-To: <20210730134552.853350-5-bert@biot.com>

On Fri, Jul 30, 2021 at 3:45 PM Bert Vermeulen <bert@biot.com> wrote:
>
> From: John Crispin <john@phrozen.org>
>
> EN7523 is an armv7 based silicon used inside broadband access type devices
> such as xPON and xDSL. It shares various silicon blocks with MediaTek
> silicon such as the MT7622.
>
> Signed-off-by: John Crispin <john@phrozen.org>
> Signed-off-by: Bert Vermeulen <bert@biot.com>

It's always nice to see a new SoC family.

> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -580,6 +580,20 @@ config ARCH_VIRT
>         select HAVE_ARM_ARCH_TIMER
>         select ARCH_SUPPORTS_BIG_ENDIAN
>
> +config ARCH_ECONET
> +       bool "Econet SoC Support"
> +       depends on ARCH_MULTI_V7
> +       select ARM_AMBA
> +       select ARM_GIC
> +       select ARM_GIC_V3
> +       select ARM_DMA_USE_IOMMU
> +       select ARM_PSCI
> +       select HAVE_ARM_ARCH_TIMER
> +       select IOMMU_DMA
> +       select COMMON_CLK
> +       help
> +         Support for Econet EN7523 SoCs

Given how closely related this probably is to MT7623/MT7622, should this
perhaps just be part of arch/arm/mach-mediatek? According to
https://wikidevi.wi-cat.ru/MediaTek#xPON, the older (mips based) MT752x
chips are apparently just rebranded to EN752x after the business unit
was spun off, but I guess they are still in the same family.

> diff --git a/arch/arm/Makefile b/arch/arm/Makefile
> index 173da685a52e..1bff0aa29c07 100644
> --- a/arch/arm/Makefile
> +++ b/arch/arm/Makefile
> @@ -152,6 +152,7 @@ textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000
>  textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000
>  textofs-$(CONFIG_ARCH_MESON) := 0x00208000
>  textofs-$(CONFIG_ARCH_AXXIA) := 0x00308000
> +textofs-$(CONFIG_ARCH_ECONET) := 0x00088000

Why is this needed?

Note also the comment directly above it exlaining
# Text offset. This list is sorted numerically by address in order to
# provide a means to avoid/resolve conflicts in multi-arch kernels.

       Arnd

  reply	other threads:[~2021-07-30 14:48 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-30 13:45 [PATCH 0/4] Add " Bert Vermeulen
2021-07-30 13:45 ` [PATCH 1/5] dt-bindings: Add vendor prefix for EcoNet Bert Vermeulen
2021-08-06 21:02   ` Rob Herring
2021-07-30 13:45 ` [PATCH 2/5] dt-bindings: arm: econet: Add binding for EN7523 SoC and EVB Bert Vermeulen
2021-08-06 21:04   ` Rob Herring
2021-07-30 13:45 ` [PATCH 3/5] ARM: dts: Add basic support for EcoNet EN7523 Bert Vermeulen
2021-07-30 14:31   ` Linus Walleij
     [not found]     ` <87y29n26po.wl-maz@kernel.org>
2021-08-01  9:07       ` Bert Vermeulen
2021-08-01  9:40         ` Arnd Bergmann
2021-07-30 14:45   ` Daniel Palmer
2021-07-30 14:46   ` Mark Rutland
2021-08-04 16:41     ` Bert Vermeulen
2021-08-06 20:59       ` Rob Herring
2021-07-30 14:59   ` Mark Rutland
2021-08-06 20:52     ` Rob Herring
2021-07-30 16:47   ` Andre Przywara
2021-07-30 13:45 ` [PATCH 4/5] ARM: Add basic support for EcoNet EN7523 SoC Bert Vermeulen
2021-07-30 14:48   ` Arnd Bergmann [this message]
2021-07-30 15:15     ` John Crispin
2021-07-30 16:55       ` Arnd Bergmann
2021-08-01 16:44     ` Ard Biesheuvel
2021-09-03 16:20       ` Felix Fietkau
2021-09-03 17:47         ` Ard Biesheuvel
2021-08-04 16:43     ` Bert Vermeulen
2021-08-09 12:46       ` Geert Uytterhoeven
2021-08-09 12:49         ` Ard Biesheuvel
2021-08-09 13:00         ` Bert Vermeulen
2021-07-30 13:45 ` [PATCH 5/5] ARM: multi_v7_defconfig: Add " Bert Vermeulen
2021-07-30 14:26 ` [PATCH 0/4] " Linus Walleij

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