Re: [PATCH net-next v3 6/6] net: ftgmac100: Allow building on ARM64

On Thu, Oct 15, 2026 at 02:46:58PM +0800, Jacky Chou wrote:

Allow the Faraday vendor menu and FTGMAC100 driver to be selected on
ARM64 so AST2700 platforms can enable the MAC. The driver now programs
the upper DMA address fields, so it no longer needs to be marked BROKEN
for 64-bit builds.

AST2700 has no dedicated MACH_ASPEED_G7 symbol; unlike the 32-bit
generations it is only gated by the common ARCH_ASPEED symbol. On
32-bit Aspeed platforms, arch/arm/mach-aspeed/Kconfig nests
MACH_ASPEED_G4/G5/G6 under "if ARCH_ASPEED", so MACH_ASPEED_G6 already
implies ARCH_ASPEED and is redundant once ARCH_ASPEED is part of the
condition. Drop it and select MDIO_ASPEED directly on ARCH_ASPEED.

This does widen the MDIO_ASPEED select beyond AST2600: it is now also
selected for AST2400/AST2500, which keep driving their embedded MDIO
controller from FTGMAC100 itself and have no MDIO node for this driver
to bind to, so it is built but stays unused there. Update the
MDIO_ASPEED help text to describe this.

Signed-off-by: Jacky Chou <jacky_chou@aspeedtech.com>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew