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microwatt/fpga
Benjamin Herrenschmidt e5aa0e9dc9 uart: Remove combinational loops on ack and stall signal
They hurt timing forcing signals to come from the master and back
again in one cycle. Stall isn't sampled by the master unless there
is an active cycle so masking it with cyc is pointless. Masking acks
is somewhat pointless too as we don't handle early dropping of cyc
in any of our slaves properly anyways.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
4 years ago
..
LICENSE Initial import of microwatt 5 years ago
arty_a7.xdc spi: Add SPI Flash controller 4 years ago
clk_gen_bypass.vhd Fix clk_gen_bypass 5 years ago
clk_gen_mcmm.vhd Improve PLL/MMCM clocks configuration 5 years ago
clk_gen_plle2.vhd Improve PLL/MMCM clocks configuration 5 years ago
cmod_a7-35.xdc Add SPI configuration to Xilinx constraint files 5 years ago
firmware.hex Add a few more FPGA related files 5 years ago
hello_world.hex hello_world: Use new headers and frequency from syscon 5 years ago
main_bram.vhdl Fix some ghdlsynth issues with fpga_bram 5 years ago
nexys-video.xdc spi: Add SPI Flash controller 4 years ago
nexys_a7.xdc Add SPI configuration to Xilinx constraint files 5 years ago
pp_fifo.vhd pp_fifo: Fix full fifo losing all data on simultaneous push & pop 5 years ago
pp_soc_uart.vhd uart: Remove combinational loops on ack and stall signal 4 years ago
pp_utilities.vhd Initial import of microwatt 5 years ago
soc_reset.vhdl soc_reset: Use counters, add synchronizers 5 years ago
soc_reset_tb.vhdl Exit cleanly from testbench on success 5 years ago
top-arty.vhdl spi: Add SPI Flash controller 4 years ago
top-generic.vhdl spi: Add SPI Flash controller 4 years ago
top-nexys-video.vhdl spi: Add SPI Flash controller 4 years ago