tree c9d65f271815054bc821467366d2872b9e9cf4ac
parent a68a63cb4dfc30e8a79b444aabc7747bb7621acf
author Thomas Petazzoni <thomas.petazzoni@free-electrons.com> 1498051755 +0200
committer Marc Zyngier <marc.zyngier@arm.com> 1498205697 +0100

irqchip/irq-mvebu-icu: Add new driver for Marvell ICU

The Marvell ICU unit is found in the CP110 block of the Marvell Armada
7K and 8K SoCs. It collects the wired interrupts of the devices located
in the CP110 and turns them into SPI interrupts in the GIC located in
the AP806 side of the SoC, by using a memory transaction.

Until now, the ICU was configured in a static fashion by the firmware,
and Linux was relying on this static configuration. By having Linux
configure the ICU, we are more flexible, and we can allocate dynamically
the GIC SPI interrupts only for devices that are actually in use.

The driver was initially written by Hanna Hawa <hannah@marvell.com>.

Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>