e731442230
Since the qcom,pshold device now supports up to two distinct register definitions, add the 'reg-names' property to assign names to the memory resources, rather than relying on resource numbering. Change-Id: Ie0bc5eae0119901239efae05357ae107a112b87a Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
30 lines
1.1 KiB
Text
30 lines
1.1 KiB
Text
MSM Restart Driver
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A power supply hold (ps-hold) bit is set to power the msm chipsets.
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Clearing that bit allows us to restart/poweroff. The difference
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between poweroff and restart is determined by unique power manager IC
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settings.
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Required Properties:
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-compatible: "qcom,pshold"
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-reg: Specifies the physical address of the ps-hold register
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This value must correspond to "pshold-base" as defined in reg-names
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-reg-names: must contain "pshold-base"
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may also contain "tcsr-boot-misc-detect"
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Optional Properties:
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-reg: A secondary reg address/size pair may be provided, to specify the address
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of the TCSR_BOOT_MISC_DETECT register. This address is typically used to
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configure the type of reset desired. Omitting this address implies that
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the reset type shall be configured by means of a call to the secure
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environment. This value must correspond to "tcsr-boot-misc-detect" as
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defined in reg-names
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-reg-names: must contain "tcsr-boot-misc-detect" if the secondary address/size
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pair described above is defined.
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Example:
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restart@fc4ab000 {
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compatible = "qcom,pshold";
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reg = <0xfc4ab000 0x4>;
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};
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