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dt-bindings: fpga: xilinx-slave-serial: add optional INIT_B GPIO

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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@lucaceresoli.net>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
This commit is contained in:
Luca Ceresoli 2020-06-22 15:37:22 +02:00 committed by Moritz Fischer
parent d3fbd739fc
commit a5d0fbab4e
1 changed files with 6 additions and 1 deletions
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7
Documentation/devicetree/bindings/fpga/xilinx-slave-serial.txt
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@ -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>;
};
};