mirror of
https://github.com/torvalds/linux.git
synced 2024-12-30 23:02:08 +00:00
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
1.0 KiB
Plaintext
31 lines
1.0 KiB
Plaintext
Lantiq XWAY SoC RCU reset controller binding
|
|
============================================
|
|
|
|
This binding describes a reset-controller found on the RCU module on Lantiq
|
|
XWAY SoCs.
|
|
|
|
This node has to be a sub node of the Lantiq RCU block.
|
|
|
|
-------------------------------------------------------------------------------
|
|
Required properties:
|
|
- compatible : Should be one of
|
|
"lantiq,danube-reset"
|
|
"lantiq,xrx200-reset"
|
|
- reg : Defines the following sets of registers in the parent
|
|
syscon device
|
|
- Offset of the reset set register
|
|
- Offset of the reset status register
|
|
- #reset-cells : Specifies the number of cells needed to encode the
|
|
reset line, should be 2.
|
|
The first cell takes the reset set bit and the
|
|
second cell takes the status bit.
|
|
|
|
-------------------------------------------------------------------------------
|
|
Example for the reset-controllers on the xRX200 SoCs:
|
|
reset0: reset-controller@10 {
|
|
compatible = "lantiq,xrx200-reset";
|
|
reg <0x10 0x04>, <0x14 0x04>;
|
|
|
|
#reset-cells = <2>;
|
|
};
|