From: Pankaj Bansal <pankaj.bansal@nxp.com>
To: Leo Li <leoyang.li@nxp.com>
Cc: Alexandru Marginean <alexandru.marginean@nxp.com>,
Pankaj Bansal <pankaj.bansal@nxp.com>,
linuxppc-dev@lists.ozlabs.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/2] dt-bindings: soc: fsl: Document Qixis FPGA usage
Date: Fri, 5 Oct 2018 14:25:04 +0530 [thread overview]
Message-ID: <20181005085505.29024-2-pankaj.bansal@nxp.com> (raw)
In-Reply-To: <20181005085505.29024-1-pankaj.bansal@nxp.com>
an FPGA-based system controller, called “Qixis”, which
manages several critical system features, including:
• Reset sequencing
• Power supply configuration
• Board configuration
• hardware configuration
The qixis registers are accessible over one or more system-specific
interfaces, typically I2C, JTAG or an embedded processor.
Signed-off-by: Pankaj Bansal <pankaj.bansal@nxp.com>
---
.../bindings/soc/fsl/qixis_ctrl.txt | 33 ++++++++++++++++++
1 file changed, 33 insertions(+)
diff --git a/Documentation/devicetree/bindings/soc/fsl/qixis_ctrl.txt b/Documentation/devicetree/bindings/soc/fsl/qixis_ctrl.txt
new file mode 100644
index 000000000000..bc2950cab71d
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/fsl/qixis_ctrl.txt
@@ -0,0 +1,33 @@
+* QIXIS FPGA block
+
+an FPGA-based system controller, called “Qixis”, which
+manages several critical system features, including:
+• Configuration switch monitoring
+• Power on/off sequencing
+• Reset sequencing
+• Power supply configuration
+• Board configuration
+• hardware configuration
+• Background power data collection (DCM)
+• Fault monitoring
+• RCW bypass SRAM (replace flash RCW with internal RCW) (NOR only)
+• Dedicated functional validation blocks (POSt/IRS, triggered event, and so on)
+• I2C master for remote board control even with no DUT available
+
+The qixis registers are accessible over one or more system-specific interfaces,
+typically I2C, JTAG or an embedded processor.
+
+Required properties:
+
+ - compatible : string, must contain "fsl,fpga-qixis-i2c"
+ - reg : i2c address of the qixis device.
+
+Examples:
+ /* The FPGA node */
+ fpga@66 {
+ compatible = "fsl,lx2160aqds-fpga", "fsl,fpga-qixis-i2c";
+ reg = <0x66>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ }
+
--
2.17.1
next prev parent reply other threads:[~2018-10-05 5:00 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-05 8:55 [PATCH 0/2] add i2c controlled qixis driver Pankaj Bansal
2018-10-05 8:55 ` Pankaj Bansal [this message]
2018-10-05 8:55 ` [PATCH 2/2] fsl: " Pankaj Bansal
2018-12-06 0:12 ` Li Yang
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