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drivers: fpga: separate drivers of iCE40 for SPI and GPIO bitbang

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Separate the current driver for the FPGA iCE40 into two different ones.
One implements only the SPI load mode, the other one only the GPIO
bitbang mode.

Signed-off-by: Benedikt Schmidt <benedikt.schmidt@embedded-solutions.at>
This commit is contained in:
Benedikt Schmidt 2024-11-26 08:29:36 +01:00 • committed by Fabio Baltieri
commit 760210f39d
12 changed files with 810 additions and 720 deletions
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3
tests/drivers/build_all/fpga/spi.dtsi
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@ -8,12 +8,11 @@
test_spi_fpga_ice40_gpio: ice40@0 {
status = "okay";
compatible = "lattice,ice40-fpga";
compatible = "lattice,ice40-fpga-bitbang";
reg = <0>;
spi-max-frequency = <1000000>;
load-mode-bitbang;
cdone-gpios = <&test_gpio 0 0>;
creset-gpios = <&test_gpio 0 0>;
clk-gpios = <&test_gpio 0 0>;