79797b6fad
The reset controllers (on xRX200 and newer SoCs have two of them) are provided by the RCU module. This was initially implemented as a simple reset controller. However, the RCU module provides more functionality (ethernet GPHYs, USB PHY, etc.), which makes it a MFD device. The old reset controller driver implementation from arch/mips/lantiq/xway/reset.c did not honor this fact. For some devices the request and the status bits are different. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Acked-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Rob Herring <robh@kernel.org> Cc: john@phrozen.org Cc: kishon@ti.com Cc: mark.rutland@arm.com Cc: linux-mips@linux-mips.org Cc: linux-mtd@lists.infradead.org Cc: linux-watchdog@vger.kernel.org Cc: devicetree@vger.kernel.org Cc: linux-spi@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/17125/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
31 lines
1 KiB
Plaintext
31 lines
1 KiB
Plaintext
Lantiq XWAY SoC RCU reset controller binding
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============================================
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This binding describes a reset-controller found on the RCU module on Lantiq
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XWAY SoCs.
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This node has to be a sub node of the Lantiq RCU block.
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-------------------------------------------------------------------------------
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Required properties:
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- compatible : Should be one of
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"lantiq,danube-reset"
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"lantiq,xrx200-reset"
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- reg : Defines the following sets of registers in the parent
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syscon device
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- Offset of the reset set register
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- Offset of the reset status register
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- #reset-cells : Specifies the number of cells needed to encode the
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reset line, should be 2.
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The first cell takes the reset set bit and the
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second cell takes the status bit.
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-------------------------------------------------------------------------------
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Example for the reset-controllers on the xRX200 SoCs:
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reset0: reset-controller@10 {
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compatible = "lantiq,xrx200-reset";
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reg <0x10 0x04>, <0x14 0x04>;
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#reset-cells = <2>;
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};
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