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On PolarFire SoC there are more GPIO interrupts than there are interrupt lines available on the PLIC, and a runtime configurable mux is used to decide which interrupts are assigned direct connections to the PLIC & which are relegated to sharing a line. Add a driver so that Linux can set the mux based on the interrupt mapping in the devicetree. Reviewed-by: Herve Codina <herve.codina@bootlin.com> Reviewed-by: Linus Walleij <linusw@kernel.org> Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com> Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
35 lines
1.0 KiB
Plaintext
35 lines
1.0 KiB
Plaintext
config POLARFIRE_SOC_IRQ_MUX
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bool "Microchip PolarFire SoC's GPIO IRQ Mux"
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depends on ARCH_MICROCHIP
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select REGMAP
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select REGMAP_MMIO
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default y
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help
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Support for the interrupt mux on Polarfire SoC. It sits between
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the GPIO controllers and the PLIC, as only 41 interrupts are shared
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between 3 GPIO controllers with a total of 70 interrupts.
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config POLARFIRE_SOC_SYS_CTRL
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tristate "Microchip PolarFire SoC (MPFS) system controller support"
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depends on POLARFIRE_SOC_MAILBOX
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depends on MTD
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help
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This driver adds support for the PolarFire SoC (MPFS) system controller.
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To compile this driver as a module, choose M here. the
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module will be called mpfs_system_controller.
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If unsure, say N.
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config POLARFIRE_SOC_SYSCONS
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bool "PolarFire SoC (MPFS) syscon drivers"
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default y
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depends on ARCH_MICROCHIP
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select MFD_CORE
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help
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These drivers add support for the syscons on PolarFire SoC (MPFS).
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Without these drivers core parts of the kernel such as clocks
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and resets will not function correctly.
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If unsure, and on a PolarFire SoC, say y.
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