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make xCOUNTEREN what buildroot expects it to be

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This commit is contained in:
bbracker 2021-06-20 09:22:31 -04:00
parent dc26f2a6d0
commit 83a0a37f8e
3 changed files with 5 additions and 1 deletions
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2
wally-pipelined/config/buildroot/wally-config.vh
View File

@ -91,7 +91,7 @@
`define GPIO_LOOPBACK_TEST 0
// Busybear special CSR config to match OVPSim
`define OVPSIM_CSR_CONFIG 1
`define OVPSIM_CSR_CONFIG 0
// Hardware configuration
`define UART_PRESCALE 1

2
wally-pipelined/src/privileged/csrm.sv
View File

@ -164,6 +164,8 @@ module csrm #(parameter
generate
if (`OVPSIM_CSR_CONFIG)
flopenl #(32) MCOUNTERENreg(clk, reset, WriteMCOUNTERENM, {CSRWriteValM[31:2],1'b0,CSRWriteValM[0]}, 32'b0, MCOUNTEREN_REGW);
else if (`BUILDROOT == 1)
flopenl #(32) MCOUNTERENreg(clk, reset, WriteMCOUNTERENM, CSRWriteValM[31:0], 32'h0, MCOUNTEREN_REGW);
else
flopenl #(32) MCOUNTERENreg(clk, reset, WriteMCOUNTERENM, CSRWriteValM[31:0], 32'hFFFFFFFF, MCOUNTEREN_REGW);
endgenerate

2
wally-pipelined/src/privileged/csrs.sv
View File

@ -91,6 +91,8 @@ module csrs #(parameter
flopenr #(`XLEN) SATPreg(clk, reset, WriteSATPM, CSRWriteValM, SATP_REGW);
if (`OVPSIM_CSR_CONFIG)
flopenl #(32) SCOUNTERENreg(clk, reset, WriteSCOUNTERENM, {CSRWriteValM[31:2],1'b0,CSRWriteValM[0]}, 32'b0, SCOUNTEREN_REGW);
else if (`BUILDROOT == 1)
flopenl #(32) SCOUNTERENreg(clk, reset, WriteSCOUNTERENM, CSRWriteValM[31:0], 32'h0, SCOUNTEREN_REGW);
else
flopenl #(32) SCOUNTERENreg(clk, reset, WriteSCOUNTERENM, CSRWriteValM[31:0], 32'hFFFFFFFF, SCOUNTEREN_REGW);
if (`N_SUPPORTED) begin