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2997609eb4
Input GPIO changes can generate interrupts, but we need kind of ACK for them by changing IRQ polarity. This is required to stop hardware from keep generating interrupts and generate another one on the next GPIO state change. This code allows using GPIOs with standard interrupts and add for example GPIO buttons support. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Acked-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6216/
92 lines
1.9 KiB
Text
92 lines
1.9 KiB
Text
config BCMA_POSSIBLE
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bool
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depends on HAS_IOMEM && HAS_DMA
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default y
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menu "Broadcom specific AMBA"
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depends on BCMA_POSSIBLE
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config BCMA
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tristate "BCMA support"
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depends on BCMA_POSSIBLE
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help
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Bus driver for Broadcom specific Advanced Microcontroller Bus
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Architecture.
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# Support for Block-I/O. SELECT this from the driver that needs it.
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config BCMA_BLOCKIO
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bool
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depends on BCMA
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config BCMA_HOST_PCI_POSSIBLE
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bool
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depends on BCMA && PCI = y
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default y
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config BCMA_HOST_PCI
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bool "Support for BCMA on PCI-host bus"
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depends on BCMA_HOST_PCI_POSSIBLE
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default y
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config BCMA_DRIVER_PCI_HOSTMODE
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bool "Driver for PCI core working in hostmode"
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depends on BCMA && MIPS && BCMA_HOST_PCI
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help
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PCI core hostmode operation (external PCI bus).
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config BCMA_HOST_SOC
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bool "Support for BCMA in a SoC"
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depends on BCMA
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help
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Host interface for a Broadcom AIX bus directly mapped into
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the memory. This only works with the Broadcom SoCs from the
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BCM47XX line.
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If unsure, say N
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config BCMA_DRIVER_MIPS
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bool "BCMA Broadcom MIPS core driver"
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depends on BCMA && MIPS
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help
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Driver for the Broadcom MIPS core attached to Broadcom specific
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Advanced Microcontroller Bus.
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If unsure, say N
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config BCMA_SFLASH
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bool
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depends on BCMA_DRIVER_MIPS
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default y
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config BCMA_NFLASH
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bool
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depends on BCMA_DRIVER_MIPS
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default y
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config BCMA_DRIVER_GMAC_CMN
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bool "BCMA Broadcom GBIT MAC COMMON core driver"
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depends on BCMA
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help
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Driver for the Broadcom GBIT MAC COMMON core attached to Broadcom
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specific Advanced Microcontroller Bus.
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If unsure, say N
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config BCMA_DRIVER_GPIO
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bool "BCMA GPIO driver"
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depends on BCMA && GPIOLIB
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select IRQ_DOMAIN if BCMA_HOST_SOC
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help
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Driver to provide access to the GPIO pins of the bcma bus.
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If unsure, say N
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config BCMA_DEBUG
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bool "BCMA debugging"
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depends on BCMA
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help
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This turns on additional debugging messages.
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If unsure, say N
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endmenu
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