The ICAP device in Xilinx FPGAs differs slightly between different
FPGAs. The driver needs an additional attribute in the device tree to
distinguish this.
Signed-off-by: Stephen Neuendorffer <[EMAIL PROTECTED]>
---
Documentation/powerpc/booting-without-of.txt | 14 ++++++++++++++
1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/Documentation/powerpc/booting-without-of.txt
b/Documentation/powerpc/booting-without-of.txt
index e9a3cb1..035e28f 100644
--- a/Documentation/powerpc/booting-without-of.txt
+++ b/Documentation/powerpc/booting-without-of.txt
@@ -2513,6 +2513,20 @@ 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'.
More devices will be defined as this spec matures.
--
1.5.3.4-dirty
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