[PATCH 4/5] ARM: Add basic support for EcoNet EN7523 SoC
Arnd Bergmann
arnd at arndb.de
Fri Jul 30 07:48:28 PDT 2021
On Fri, Jul 30, 2021 at 3:45 PM Bert Vermeulen <bert at biot.com> wrote:
>
> From: John Crispin <john at 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 at phrozen.org>
> Signed-off-by: Bert Vermeulen <bert at 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
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