spi_engine: Expose DATA_WIDTH to software
The value of DATA_WIDTH can be read back from register 0x44 The DATA_WIDTH will define the size of a word in a transaction.main
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801fb2281e
commit
18a671cdb7
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@ -264,6 +264,7 @@ always @(posedge clk) begin
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8'h00: up_rdata_ff <= PCORE_VERSION;
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8'h00: up_rdata_ff <= PCORE_VERSION;
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8'h01: up_rdata_ff <= ID;
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8'h01: up_rdata_ff <= ID;
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8'h02: up_rdata_ff <= up_scratch;
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8'h02: up_rdata_ff <= up_scratch;
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8'h03: up_rdata_ff <= DATA_WIDTH;
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8'h10: up_rdata_ff <= up_sw_reset;
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8'h10: up_rdata_ff <= up_sw_reset;
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8'h20: up_rdata_ff <= up_irq_mask;
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8'h20: up_rdata_ff <= up_irq_mask;
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8'h21: up_rdata_ff <= up_irq_pending;
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8'h21: up_rdata_ff <= up_irq_pending;
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