ARM: dts: bcm2711: Move emmc2 into its own bus

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Depending on bcm2711's revision its emmc2 controller might have
different DMA constraints. Raspberry Pi 4's firmware will take care of
updating those, but only if a certain alias is found in the device tree.
So, move emmc2 into its own bus, so as not to pollute other devices with
dma-ranges changes and create the emmc2bus alias.

Based in Phil ELwell's downstream implementation.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Link: https://lore.kernel.org/r/20200304132437.20164-1-nsaenzjulienne@suse.de

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Nicolas Saenz Julienne 2020-03-04 14:24:37 +01:00

parent cd87c180b3

commit 3d2cbb6448

2 changed files with 21 additions and 5 deletions

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arch/arm/boot/dts/bcm2711-rpi-4-b.dts

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25

arch/arm/boot/dts/bcm2711.dtsi

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