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diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt
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+++ b/Documentation/powerpc/booting-without-of.txt
@@ -2577,6 +2577,20 @@ platforms are moved over to use the flattened-device-tree model.
Requred properties:
- current-speed : Baud rate of uartlite
+ v) Xilinx hwicap
+
+ Xilinx hwicap devices provide access to the configuration logic
+ of the FPGA through the Internal Configuration Access Port
+ (ICAP). The ICAP enables partial reconfiguration of the FPGA,
+ readback of the configuration information, and some control over
+ 'warm boots' of the FPGA fabric.
+
+ Required properties:
+ - xlnx,family : The family of the FPGA, necessary since the
+ capabilities of the underlying ICAP hardware
+ differ between different families. May be
+ 'virtex2p', 'virtex4', or 'virtex5'.
+
p) Freescale Synchronous Serial Interface
The SSI is a serial device that communicates with audio codecs. It can