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71d076ceb2
All supported Renesas ARM SoCs (except for Emma Mobile EV2) have clock
domains. Some SoCs also have power domains. To ensure proper operation
of on-SoC modules, module clocks must be ungated, and power domains must
be powered up when needed.
Currently the user can choose to build a kernel with power management
enabled or disabled:
- If CONFIG_PM=y, power domains and/or module clocks are handled
dynamically by Runtime PM and the generic power domain.
- If CONFIG_PM=n, power domains are assumed to be powered up by reset
state or by the boot loader, and module clocks are handled by the
legacy clock domain on driver (un)bind.
The latter is implemented using a platform bus notifier, which
applies not only to all on-SoC devices, but to all platform devices
present in the system.
To remove the dependency on implicit assumptions, and to get rid of the
peculiarities of the legacy clock domain, enable CONFIG_PM and
CONFIG_PM_GENERIC_DOMAINS unconditionally, for all Renesas ARM SoCs with
clock and/or power domains.
This does cause an increase in kernel size. Given bloat-o-meter reports
a modest increase of 26 KiB for an RZ/A1H kernel, this should not be a
problem, even when used on RZ/A1H with XIP and internal RAM only.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
108 lines
1.9 KiB
Plaintext
108 lines
1.9 KiB
Plaintext
config ARCH_SHMOBILE
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bool
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config ARCH_SHMOBILE_MULTI
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bool
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config PM_RCAR
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bool
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select PM
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select PM_GENERIC_DOMAINS
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config PM_RMOBILE
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bool
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select PM
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select PM_GENERIC_DOMAINS
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config ARCH_RCAR_GEN1
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bool
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select PM_RCAR
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select RENESAS_INTC_IRQPIN
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select SYS_SUPPORTS_SH_TMU
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config ARCH_RCAR_GEN2
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bool
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select PM_RCAR
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select RENESAS_IRQC
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select SYS_SUPPORTS_SH_CMT
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select PCI_DOMAINS if PCI
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config ARCH_RMOBILE
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bool
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select PM_RMOBILE
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select SYS_SUPPORTS_SH_CMT
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select SYS_SUPPORTS_SH_TMU
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menuconfig ARCH_RENESAS
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bool "Renesas ARM SoCs"
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depends on ARCH_MULTI_V7 && MMU
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select ARCH_SHMOBILE
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select ARCH_SHMOBILE_MULTI
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select HAVE_ARM_SCU if SMP
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select HAVE_ARM_TWD if SMP
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select ARM_GIC
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select ARCH_DMA_ADDR_T_64BIT if ARM_LPAE
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select NO_IOPORT_MAP
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select PINCTRL
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select ARCH_REQUIRE_GPIOLIB
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select ZONE_DMA if ARM_LPAE
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if ARCH_RENESAS
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#comment "Renesas ARM SoCs System Type"
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config ARCH_EMEV2
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bool "Emma Mobile EV2"
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select SYS_SUPPORTS_EM_STI
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config ARCH_R7S72100
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bool "RZ/A1H (R7S72100)"
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select PM
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select PM_GENERIC_DOMAINS
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select SYS_SUPPORTS_SH_MTU2
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config ARCH_R8A73A4
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bool "R-Mobile APE6 (R8A73A40)"
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select ARCH_RMOBILE
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select RENESAS_IRQC
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config ARCH_R8A7740
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bool "R-Mobile A1 (R8A77400)"
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select ARCH_RMOBILE
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select RENESAS_INTC_IRQPIN
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config ARCH_R8A7778
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bool "R-Car M1A (R8A77781)"
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select ARCH_RCAR_GEN1
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config ARCH_R8A7779
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bool "R-Car H1 (R8A77790)"
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select ARCH_RCAR_GEN1
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config ARCH_R8A7790
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bool "R-Car H2 (R8A77900)"
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select ARCH_RCAR_GEN2
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select I2C
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config ARCH_R8A7791
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bool "R-Car M2-W (R8A77910)"
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select ARCH_RCAR_GEN2
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select I2C
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config ARCH_R8A7793
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bool "R-Car M2-N (R8A7793)"
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select ARCH_RCAR_GEN2
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select I2C
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config ARCH_R8A7794
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bool "R-Car E2 (R8A77940)"
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select ARCH_RCAR_GEN2
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config ARCH_SH73A0
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bool "SH-Mobile AG5 (R8A73A00)"
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select ARCH_RMOBILE
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select RENESAS_INTC_IRQPIN
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comment "Renesas ARM SoCs System Configuration"
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endif
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