The INIT_B is used by the 6 and 7 series to report the programming status,
providing more control and information about programming errors.
Signed-off-by: Luca Ceresoli <luca@xxxxxxxxxxxxxxxx>
---
.../devicetree/bindings/fpga/xilinx-slave-serial.txt | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/fpga/xilinx-slave-serial.txt b/Documentation/devicetree/bindings/fpga/xilinx-slave-serial.txt
index 9f103f3872e8..a049082e1513 100644
--- a/Documentation/devicetree/bindings/fpga/xilinx-slave-serial.txt
+++ b/Documentation/devicetree/bindings/fpga/xilinx-slave-serial.txt
@@ -16,6 +16,10 @@ Required properties:
- prog_b-gpios: config pin (referred to as PROGRAM_B in the manual)
- done-gpios: config status pin (referred to as DONE in the manual)
+Optional properties:
+- init_b-gpios: initialization status and configuration error pin
+ (referred to as INIT_B in the manual)
+
Example for full FPGA configuration:
fpga-region0 {
@@ -40,7 +44,8 @@ Example for full FPGA configuration:
spi-max-frequency = <60000000>;
spi-cpha;
reg = <0>;
- done-gpios = <&gpio0 9 GPIO_ACTIVE_HIGH>;
prog_b-gpios = <&gpio0 29 GPIO_ACTIVE_LOW>;
+ init_b-gpios = <&gpio0 28 GPIO_ACTIVE_LOW>;
+ done-gpios = <&gpio0 9 GPIO_ACTIVE_HIGH>;
};
};
--
2.27.0
