| // Copyright lowRISC contributors. |
| // Licensed under the Apache License, Version 2.0, see LICENSE for details. |
| // SPDX-License-Identifier: Apache-2.0 |
| // |
| // Register Top module auto-generated by `reggen` |
| |
| `include "prim_assert.sv" |
| |
| module gpio_reg_top ( |
| input clk_i, |
| input rst_ni, |
| input tlul_pkg::tl_h2d_t tl_i, |
| output tlul_pkg::tl_d2h_t tl_o, |
| // To HW |
| output gpio_reg_pkg::gpio_reg2hw_t reg2hw, // Write |
| input gpio_reg_pkg::gpio_hw2reg_t hw2reg, // Read |
| |
| // Integrity check errors |
| output logic intg_err_o, |
| |
| // Config |
| input devmode_i // If 1, explicit error return for unmapped register access |
| ); |
| |
| import gpio_reg_pkg::* ; |
| |
| localparam int AW = 6; |
| localparam int DW = 32; |
| localparam int DBW = DW/8; // Byte Width |
| |
| // register signals |
| logic reg_we; |
| logic reg_re; |
| logic [AW-1:0] reg_addr; |
| logic [DW-1:0] reg_wdata; |
| logic [DBW-1:0] reg_be; |
| logic [DW-1:0] reg_rdata; |
| logic reg_error; |
| |
| logic addrmiss, wr_err; |
| |
| logic [DW-1:0] reg_rdata_next; |
| logic reg_busy; |
| |
| tlul_pkg::tl_h2d_t tl_reg_h2d; |
| tlul_pkg::tl_d2h_t tl_reg_d2h; |
| |
| |
| // incoming payload check |
| logic intg_err; |
| tlul_cmd_intg_chk u_chk ( |
| .tl_i(tl_i), |
| .err_o(intg_err) |
| ); |
| |
| // also check for spurious write enables |
| logic reg_we_err; |
| logic [15:0] reg_we_check; |
| prim_reg_we_check #( |
| .OneHotWidth(16) |
| ) u_prim_reg_we_check ( |
| .clk_i(clk_i), |
| .rst_ni(rst_ni), |
| .oh_i (reg_we_check), |
| .en_i (reg_we && !addrmiss), |
| .err_o (reg_we_err) |
| ); |
| |
| logic err_q; |
| always_ff @(posedge clk_i or negedge rst_ni) begin |
| if (!rst_ni) begin |
| err_q <= '0; |
| end else if (intg_err || reg_we_err) begin |
| err_q <= 1'b1; |
| end |
| end |
| |
| // integrity error output is permanent and should be used for alert generation |
| // register errors are transactional |
| assign intg_err_o = err_q | intg_err | reg_we_err; |
| |
| // outgoing integrity generation |
| tlul_pkg::tl_d2h_t tl_o_pre; |
| tlul_rsp_intg_gen #( |
| .EnableRspIntgGen(1), |
| .EnableDataIntgGen(1) |
| ) u_rsp_intg_gen ( |
| .tl_i(tl_o_pre), |
| .tl_o(tl_o) |
| ); |
| |
| assign tl_reg_h2d = tl_i; |
| assign tl_o_pre = tl_reg_d2h; |
| |
| tlul_adapter_reg #( |
| .RegAw(AW), |
| .RegDw(DW), |
| .EnableDataIntgGen(0) |
| ) u_reg_if ( |
| .clk_i (clk_i), |
| .rst_ni (rst_ni), |
| |
| .tl_i (tl_reg_h2d), |
| .tl_o (tl_reg_d2h), |
| |
| .we_o (reg_we), |
| .re_o (reg_re), |
| .addr_o (reg_addr), |
| .wdata_o (reg_wdata), |
| .be_o (reg_be), |
| .busy_i (reg_busy), |
| .rdata_i (reg_rdata), |
| .error_i (reg_error) |
| ); |
| |
| // cdc oversampling signals |
| |
| assign reg_rdata = reg_rdata_next ; |
| assign reg_error = (devmode_i & addrmiss) | wr_err | intg_err; |
| |
| // Define SW related signals |
| // Format: <reg>_<field>_{wd|we|qs} |
| // or <reg>_{wd|we|qs} if field == 1 or 0 |
| logic intr_state_we; |
| logic [31:0] intr_state_qs; |
| logic [31:0] intr_state_wd; |
| logic intr_enable_we; |
| logic [31:0] intr_enable_qs; |
| logic [31:0] intr_enable_wd; |
| logic intr_test_we; |
| logic [31:0] intr_test_wd; |
| logic alert_test_we; |
| logic alert_test_wd; |
| logic [31:0] data_in_qs; |
| logic direct_out_re; |
| logic direct_out_we; |
| logic [31:0] direct_out_qs; |
| logic [31:0] direct_out_wd; |
| logic masked_out_lower_re; |
| logic masked_out_lower_we; |
| logic [15:0] masked_out_lower_data_qs; |
| logic [15:0] masked_out_lower_data_wd; |
| logic [15:0] masked_out_lower_mask_wd; |
| logic masked_out_upper_re; |
| logic masked_out_upper_we; |
| logic [15:0] masked_out_upper_data_qs; |
| logic [15:0] masked_out_upper_data_wd; |
| logic [15:0] masked_out_upper_mask_wd; |
| logic direct_oe_re; |
| logic direct_oe_we; |
| logic [31:0] direct_oe_qs; |
| logic [31:0] direct_oe_wd; |
| logic masked_oe_lower_re; |
| logic masked_oe_lower_we; |
| logic [15:0] masked_oe_lower_data_qs; |
| logic [15:0] masked_oe_lower_data_wd; |
| logic [15:0] masked_oe_lower_mask_qs; |
| logic [15:0] masked_oe_lower_mask_wd; |
| logic masked_oe_upper_re; |
| logic masked_oe_upper_we; |
| logic [15:0] masked_oe_upper_data_qs; |
| logic [15:0] masked_oe_upper_data_wd; |
| logic [15:0] masked_oe_upper_mask_qs; |
| logic [15:0] masked_oe_upper_mask_wd; |
| logic intr_ctrl_en_rising_we; |
| logic [31:0] intr_ctrl_en_rising_qs; |
| logic [31:0] intr_ctrl_en_rising_wd; |
| logic intr_ctrl_en_falling_we; |
| logic [31:0] intr_ctrl_en_falling_qs; |
| logic [31:0] intr_ctrl_en_falling_wd; |
| logic intr_ctrl_en_lvlhigh_we; |
| logic [31:0] intr_ctrl_en_lvlhigh_qs; |
| logic [31:0] intr_ctrl_en_lvlhigh_wd; |
| logic intr_ctrl_en_lvllow_we; |
| logic [31:0] intr_ctrl_en_lvllow_qs; |
| logic [31:0] intr_ctrl_en_lvllow_wd; |
| logic ctrl_en_input_filter_we; |
| logic [31:0] ctrl_en_input_filter_qs; |
| logic [31:0] ctrl_en_input_filter_wd; |
| |
| // Register instances |
| // R[intr_state]: V(False) |
| prim_subreg #( |
| .DW (32), |
| .SwAccess(prim_subreg_pkg::SwAccessW1C), |
| .RESVAL (32'h0) |
| ) u_intr_state ( |
| .clk_i (clk_i), |
| .rst_ni (rst_ni), |
| |
| // from register interface |
| .we (intr_state_we), |
| .wd (intr_state_wd), |
| |
| // from internal hardware |
| .de (hw2reg.intr_state.de), |
| .d (hw2reg.intr_state.d), |
| |
| // to internal hardware |
| .qe (), |
| .q (reg2hw.intr_state.q), |
| .ds (), |
| |
| // to register interface (read) |
| .qs (intr_state_qs) |
| ); |
| |
| |
| // R[intr_enable]: V(False) |
| prim_subreg #( |
| .DW (32), |
| .SwAccess(prim_subreg_pkg::SwAccessRW), |
| .RESVAL (32'h0) |
| ) u_intr_enable ( |
| .clk_i (clk_i), |
| .rst_ni (rst_ni), |
| |
| // from register interface |
| .we (intr_enable_we), |
| .wd (intr_enable_wd), |
| |
| // from internal hardware |
| .de (1'b0), |
| .d ('0), |
| |
| // to internal hardware |
| .qe (), |
| .q (reg2hw.intr_enable.q), |
| .ds (), |
| |
| // to register interface (read) |
| .qs (intr_enable_qs) |
| ); |
| |
| |
| // R[intr_test]: V(True) |
| logic intr_test_qe; |
| logic [0:0] intr_test_flds_we; |
| assign intr_test_qe = &intr_test_flds_we; |
| prim_subreg_ext #( |
| .DW (32) |
| ) u_intr_test ( |
| .re (1'b0), |
| .we (intr_test_we), |
| .wd (intr_test_wd), |
| .d ('0), |
| .qre (), |
| .qe (intr_test_flds_we[0]), |
| .q (reg2hw.intr_test.q), |
| .ds (), |
| .qs () |
| ); |
| assign reg2hw.intr_test.qe = intr_test_qe; |
| |
| |
| // R[alert_test]: V(True) |
| logic alert_test_qe; |
| logic [0:0] alert_test_flds_we; |
| assign alert_test_qe = &alert_test_flds_we; |
| prim_subreg_ext #( |
| .DW (1) |
| ) u_alert_test ( |
| .re (1'b0), |
| .we (alert_test_we), |
| .wd (alert_test_wd), |
| .d ('0), |
| .qre (), |
| .qe (alert_test_flds_we[0]), |
| .q (reg2hw.alert_test.q), |
| .ds (), |
| .qs () |
| ); |
| assign reg2hw.alert_test.qe = alert_test_qe; |
| |
| |
| // R[data_in]: V(False) |
| prim_subreg #( |
| .DW (32), |
| .SwAccess(prim_subreg_pkg::SwAccessRO), |
| .RESVAL (32'h0) |
| ) u_data_in ( |
| .clk_i (clk_i), |
| .rst_ni (rst_ni), |
| |
| // from register interface |
| .we (1'b0), |
| .wd ('0), |
| |
| // from internal hardware |
| .de (hw2reg.data_in.de), |
| .d (hw2reg.data_in.d), |
| |
| // to internal hardware |
| .qe (), |
| .q (), |
| .ds (), |
| |
| // to register interface (read) |
| .qs (data_in_qs) |
| ); |
| |
| |
| // R[direct_out]: V(True) |
| logic direct_out_qe; |
| logic [0:0] direct_out_flds_we; |
| assign direct_out_qe = &direct_out_flds_we; |
| prim_subreg_ext #( |
| .DW (32) |
| ) u_direct_out ( |
| .re (direct_out_re), |
| .we (direct_out_we), |
| .wd (direct_out_wd), |
| .d (hw2reg.direct_out.d), |
| .qre (), |
| .qe (direct_out_flds_we[0]), |
| .q (reg2hw.direct_out.q), |
| .ds (), |
| .qs (direct_out_qs) |
| ); |
| assign reg2hw.direct_out.qe = direct_out_qe; |
| |
| |
| // R[masked_out_lower]: V(True) |
| logic masked_out_lower_qe; |
| logic [1:0] masked_out_lower_flds_we; |
| assign masked_out_lower_qe = &masked_out_lower_flds_we; |
| // F[data]: 15:0 |
| prim_subreg_ext #( |
| .DW (16) |
| ) u_masked_out_lower_data ( |
| .re (masked_out_lower_re), |
| .we (masked_out_lower_we), |
| .wd (masked_out_lower_data_wd), |
| .d (hw2reg.masked_out_lower.data.d), |
| .qre (), |
| .qe (masked_out_lower_flds_we[0]), |
| .q (reg2hw.masked_out_lower.data.q), |
| .ds (), |
| .qs (masked_out_lower_data_qs) |
| ); |
| assign reg2hw.masked_out_lower.data.qe = masked_out_lower_qe; |
| |
| // F[mask]: 31:16 |
| prim_subreg_ext #( |
| .DW (16) |
| ) u_masked_out_lower_mask ( |
| .re (1'b0), |
| .we (masked_out_lower_we), |
| .wd (masked_out_lower_mask_wd), |
| .d (hw2reg.masked_out_lower.mask.d), |
| .qre (), |
| .qe (masked_out_lower_flds_we[1]), |
| .q (reg2hw.masked_out_lower.mask.q), |
| .ds (), |
| .qs () |
| ); |
| assign reg2hw.masked_out_lower.mask.qe = masked_out_lower_qe; |
| |
| |
| // R[masked_out_upper]: V(True) |
| logic masked_out_upper_qe; |
| logic [1:0] masked_out_upper_flds_we; |
| assign masked_out_upper_qe = &masked_out_upper_flds_we; |
| // F[data]: 15:0 |
| prim_subreg_ext #( |
| .DW (16) |
| ) u_masked_out_upper_data ( |
| .re (masked_out_upper_re), |
| .we (masked_out_upper_we), |
| .wd (masked_out_upper_data_wd), |
| .d (hw2reg.masked_out_upper.data.d), |
| .qre (), |
| .qe (masked_out_upper_flds_we[0]), |
| .q (reg2hw.masked_out_upper.data.q), |
| .ds (), |
| .qs (masked_out_upper_data_qs) |
| ); |
| assign reg2hw.masked_out_upper.data.qe = masked_out_upper_qe; |
| |
| // F[mask]: 31:16 |
| prim_subreg_ext #( |
| .DW (16) |
| ) u_masked_out_upper_mask ( |
| .re (1'b0), |
| .we (masked_out_upper_we), |
| .wd (masked_out_upper_mask_wd), |
| .d (hw2reg.masked_out_upper.mask.d), |
| .qre (), |
| .qe (masked_out_upper_flds_we[1]), |
| .q (reg2hw.masked_out_upper.mask.q), |
| .ds (), |
| .qs () |
| ); |
| assign reg2hw.masked_out_upper.mask.qe = masked_out_upper_qe; |
| |
| |
| // R[direct_oe]: V(True) |
| logic direct_oe_qe; |
| logic [0:0] direct_oe_flds_we; |
| assign direct_oe_qe = &direct_oe_flds_we; |
| prim_subreg_ext #( |
| .DW (32) |
| ) u_direct_oe ( |
| .re (direct_oe_re), |
| .we (direct_oe_we), |
| .wd (direct_oe_wd), |
| .d (hw2reg.direct_oe.d), |
| .qre (), |
| .qe (direct_oe_flds_we[0]), |
| .q (reg2hw.direct_oe.q), |
| .ds (), |
| .qs (direct_oe_qs) |
| ); |
| assign reg2hw.direct_oe.qe = direct_oe_qe; |
| |
| |
| // R[masked_oe_lower]: V(True) |
| logic masked_oe_lower_qe; |
| logic [1:0] masked_oe_lower_flds_we; |
| assign masked_oe_lower_qe = &masked_oe_lower_flds_we; |
| // F[data]: 15:0 |
| prim_subreg_ext #( |
| .DW (16) |
| ) u_masked_oe_lower_data ( |
| .re (masked_oe_lower_re), |
| .we (masked_oe_lower_we), |
| .wd (masked_oe_lower_data_wd), |
| .d (hw2reg.masked_oe_lower.data.d), |
| .qre (), |
| .qe (masked_oe_lower_flds_we[0]), |
| .q (reg2hw.masked_oe_lower.data.q), |
| .ds (), |
| .qs (masked_oe_lower_data_qs) |
| ); |
| assign reg2hw.masked_oe_lower.data.qe = masked_oe_lower_qe; |
| |
| // F[mask]: 31:16 |
| prim_subreg_ext #( |
| .DW (16) |
| ) u_masked_oe_lower_mask ( |
| .re (masked_oe_lower_re), |
| .we (masked_oe_lower_we), |
| .wd (masked_oe_lower_mask_wd), |
| .d (hw2reg.masked_oe_lower.mask.d), |
| .qre (), |
| .qe (masked_oe_lower_flds_we[1]), |
| .q (reg2hw.masked_oe_lower.mask.q), |
| .ds (), |
| .qs (masked_oe_lower_mask_qs) |
| ); |
| assign reg2hw.masked_oe_lower.mask.qe = masked_oe_lower_qe; |
| |
| |
| // R[masked_oe_upper]: V(True) |
| logic masked_oe_upper_qe; |
| logic [1:0] masked_oe_upper_flds_we; |
| assign masked_oe_upper_qe = &masked_oe_upper_flds_we; |
| // F[data]: 15:0 |
| prim_subreg_ext #( |
| .DW (16) |
| ) u_masked_oe_upper_data ( |
| .re (masked_oe_upper_re), |
| .we (masked_oe_upper_we), |
| .wd (masked_oe_upper_data_wd), |
| .d (hw2reg.masked_oe_upper.data.d), |
| .qre (), |
| .qe (masked_oe_upper_flds_we[0]), |
| .q (reg2hw.masked_oe_upper.data.q), |
| .ds (), |
| .qs (masked_oe_upper_data_qs) |
| ); |
| assign reg2hw.masked_oe_upper.data.qe = masked_oe_upper_qe; |
| |
| // F[mask]: 31:16 |
| prim_subreg_ext #( |
| .DW (16) |
| ) u_masked_oe_upper_mask ( |
| .re (masked_oe_upper_re), |
| .we (masked_oe_upper_we), |
| .wd (masked_oe_upper_mask_wd), |
| .d (hw2reg.masked_oe_upper.mask.d), |
| .qre (), |
| .qe (masked_oe_upper_flds_we[1]), |
| .q (reg2hw.masked_oe_upper.mask.q), |
| .ds (), |
| .qs (masked_oe_upper_mask_qs) |
| ); |
| assign reg2hw.masked_oe_upper.mask.qe = masked_oe_upper_qe; |
| |
| |
| // R[intr_ctrl_en_rising]: V(False) |
| prim_subreg #( |
| .DW (32), |
| .SwAccess(prim_subreg_pkg::SwAccessRW), |
| .RESVAL (32'h0) |
| ) u_intr_ctrl_en_rising ( |
| .clk_i (clk_i), |
| .rst_ni (rst_ni), |
| |
| // from register interface |
| .we (intr_ctrl_en_rising_we), |
| .wd (intr_ctrl_en_rising_wd), |
| |
| // from internal hardware |
| .de (1'b0), |
| .d ('0), |
| |
| // to internal hardware |
| .qe (), |
| .q (reg2hw.intr_ctrl_en_rising.q), |
| .ds (), |
| |
| // to register interface (read) |
| .qs (intr_ctrl_en_rising_qs) |
| ); |
| |
| |
| // R[intr_ctrl_en_falling]: V(False) |
| prim_subreg #( |
| .DW (32), |
| .SwAccess(prim_subreg_pkg::SwAccessRW), |
| .RESVAL (32'h0) |
| ) u_intr_ctrl_en_falling ( |
| .clk_i (clk_i), |
| .rst_ni (rst_ni), |
| |
| // from register interface |
| .we (intr_ctrl_en_falling_we), |
| .wd (intr_ctrl_en_falling_wd), |
| |
| // from internal hardware |
| .de (1'b0), |
| .d ('0), |
| |
| // to internal hardware |
| .qe (), |
| .q (reg2hw.intr_ctrl_en_falling.q), |
| .ds (), |
| |
| // to register interface (read) |
| .qs (intr_ctrl_en_falling_qs) |
| ); |
| |
| |
| // R[intr_ctrl_en_lvlhigh]: V(False) |
| prim_subreg #( |
| .DW (32), |
| .SwAccess(prim_subreg_pkg::SwAccessRW), |
| .RESVAL (32'h0) |
| ) u_intr_ctrl_en_lvlhigh ( |
| .clk_i (clk_i), |
| .rst_ni (rst_ni), |
| |
| // from register interface |
| .we (intr_ctrl_en_lvlhigh_we), |
| .wd (intr_ctrl_en_lvlhigh_wd), |
| |
| // from internal hardware |
| .de (1'b0), |
| .d ('0), |
| |
| // to internal hardware |
| .qe (), |
| .q (reg2hw.intr_ctrl_en_lvlhigh.q), |
| .ds (), |
| |
| // to register interface (read) |
| .qs (intr_ctrl_en_lvlhigh_qs) |
| ); |
| |
| |
| // R[intr_ctrl_en_lvllow]: V(False) |
| prim_subreg #( |
| .DW (32), |
| .SwAccess(prim_subreg_pkg::SwAccessRW), |
| .RESVAL (32'h0) |
| ) u_intr_ctrl_en_lvllow ( |
| .clk_i (clk_i), |
| .rst_ni (rst_ni), |
| |
| // from register interface |
| .we (intr_ctrl_en_lvllow_we), |
| .wd (intr_ctrl_en_lvllow_wd), |
| |
| // from internal hardware |
| .de (1'b0), |
| .d ('0), |
| |
| // to internal hardware |
| .qe (), |
| .q (reg2hw.intr_ctrl_en_lvllow.q), |
| .ds (), |
| |
| // to register interface (read) |
| .qs (intr_ctrl_en_lvllow_qs) |
| ); |
| |
| |
| // R[ctrl_en_input_filter]: V(False) |
| prim_subreg #( |
| .DW (32), |
| .SwAccess(prim_subreg_pkg::SwAccessRW), |
| .RESVAL (32'h0) |
| ) u_ctrl_en_input_filter ( |
| .clk_i (clk_i), |
| .rst_ni (rst_ni), |
| |
| // from register interface |
| .we (ctrl_en_input_filter_we), |
| .wd (ctrl_en_input_filter_wd), |
| |
| // from internal hardware |
| .de (1'b0), |
| .d ('0), |
| |
| // to internal hardware |
| .qe (), |
| .q (reg2hw.ctrl_en_input_filter.q), |
| .ds (), |
| |
| // to register interface (read) |
| .qs (ctrl_en_input_filter_qs) |
| ); |
| |
| |
| |
| logic [15:0] addr_hit; |
| always_comb begin |
| addr_hit = '0; |
| addr_hit[ 0] = (reg_addr == GPIO_INTR_STATE_OFFSET); |
| addr_hit[ 1] = (reg_addr == GPIO_INTR_ENABLE_OFFSET); |
| addr_hit[ 2] = (reg_addr == GPIO_INTR_TEST_OFFSET); |
| addr_hit[ 3] = (reg_addr == GPIO_ALERT_TEST_OFFSET); |
| addr_hit[ 4] = (reg_addr == GPIO_DATA_IN_OFFSET); |
| addr_hit[ 5] = (reg_addr == GPIO_DIRECT_OUT_OFFSET); |
| addr_hit[ 6] = (reg_addr == GPIO_MASKED_OUT_LOWER_OFFSET); |
| addr_hit[ 7] = (reg_addr == GPIO_MASKED_OUT_UPPER_OFFSET); |
| addr_hit[ 8] = (reg_addr == GPIO_DIRECT_OE_OFFSET); |
| addr_hit[ 9] = (reg_addr == GPIO_MASKED_OE_LOWER_OFFSET); |
| addr_hit[10] = (reg_addr == GPIO_MASKED_OE_UPPER_OFFSET); |
| addr_hit[11] = (reg_addr == GPIO_INTR_CTRL_EN_RISING_OFFSET); |
| addr_hit[12] = (reg_addr == GPIO_INTR_CTRL_EN_FALLING_OFFSET); |
| addr_hit[13] = (reg_addr == GPIO_INTR_CTRL_EN_LVLHIGH_OFFSET); |
| addr_hit[14] = (reg_addr == GPIO_INTR_CTRL_EN_LVLLOW_OFFSET); |
| addr_hit[15] = (reg_addr == GPIO_CTRL_EN_INPUT_FILTER_OFFSET); |
| end |
| |
| assign addrmiss = (reg_re || reg_we) ? ~|addr_hit : 1'b0 ; |
| |
| // Check sub-word write is permitted |
| always_comb begin |
| wr_err = (reg_we & |
| ((addr_hit[ 0] & (|(GPIO_PERMIT[ 0] & ~reg_be))) | |
| (addr_hit[ 1] & (|(GPIO_PERMIT[ 1] & ~reg_be))) | |
| (addr_hit[ 2] & (|(GPIO_PERMIT[ 2] & ~reg_be))) | |
| (addr_hit[ 3] & (|(GPIO_PERMIT[ 3] & ~reg_be))) | |
| (addr_hit[ 4] & (|(GPIO_PERMIT[ 4] & ~reg_be))) | |
| (addr_hit[ 5] & (|(GPIO_PERMIT[ 5] & ~reg_be))) | |
| (addr_hit[ 6] & (|(GPIO_PERMIT[ 6] & ~reg_be))) | |
| (addr_hit[ 7] & (|(GPIO_PERMIT[ 7] & ~reg_be))) | |
| (addr_hit[ 8] & (|(GPIO_PERMIT[ 8] & ~reg_be))) | |
| (addr_hit[ 9] & (|(GPIO_PERMIT[ 9] & ~reg_be))) | |
| (addr_hit[10] & (|(GPIO_PERMIT[10] & ~reg_be))) | |
| (addr_hit[11] & (|(GPIO_PERMIT[11] & ~reg_be))) | |
| (addr_hit[12] & (|(GPIO_PERMIT[12] & ~reg_be))) | |
| (addr_hit[13] & (|(GPIO_PERMIT[13] & ~reg_be))) | |
| (addr_hit[14] & (|(GPIO_PERMIT[14] & ~reg_be))) | |
| (addr_hit[15] & (|(GPIO_PERMIT[15] & ~reg_be))))); |
| end |
| |
| // Generate write-enables |
| assign intr_state_we = addr_hit[0] & reg_we & !reg_error; |
| |
| assign intr_state_wd = reg_wdata[31:0]; |
| assign intr_enable_we = addr_hit[1] & reg_we & !reg_error; |
| |
| assign intr_enable_wd = reg_wdata[31:0]; |
| assign intr_test_we = addr_hit[2] & reg_we & !reg_error; |
| |
| assign intr_test_wd = reg_wdata[31:0]; |
| assign alert_test_we = addr_hit[3] & reg_we & !reg_error; |
| |
| assign alert_test_wd = reg_wdata[0]; |
| assign direct_out_re = addr_hit[5] & reg_re & !reg_error; |
| assign direct_out_we = addr_hit[5] & reg_we & !reg_error; |
| |
| assign direct_out_wd = reg_wdata[31:0]; |
| assign masked_out_lower_re = addr_hit[6] & reg_re & !reg_error; |
| assign masked_out_lower_we = addr_hit[6] & reg_we & !reg_error; |
| |
| assign masked_out_lower_data_wd = reg_wdata[15:0]; |
| |
| assign masked_out_lower_mask_wd = reg_wdata[31:16]; |
| assign masked_out_upper_re = addr_hit[7] & reg_re & !reg_error; |
| assign masked_out_upper_we = addr_hit[7] & reg_we & !reg_error; |
| |
| assign masked_out_upper_data_wd = reg_wdata[15:0]; |
| |
| assign masked_out_upper_mask_wd = reg_wdata[31:16]; |
| assign direct_oe_re = addr_hit[8] & reg_re & !reg_error; |
| assign direct_oe_we = addr_hit[8] & reg_we & !reg_error; |
| |
| assign direct_oe_wd = reg_wdata[31:0]; |
| assign masked_oe_lower_re = addr_hit[9] & reg_re & !reg_error; |
| assign masked_oe_lower_we = addr_hit[9] & reg_we & !reg_error; |
| |
| assign masked_oe_lower_data_wd = reg_wdata[15:0]; |
| |
| assign masked_oe_lower_mask_wd = reg_wdata[31:16]; |
| assign masked_oe_upper_re = addr_hit[10] & reg_re & !reg_error; |
| assign masked_oe_upper_we = addr_hit[10] & reg_we & !reg_error; |
| |
| assign masked_oe_upper_data_wd = reg_wdata[15:0]; |
| |
| assign masked_oe_upper_mask_wd = reg_wdata[31:16]; |
| assign intr_ctrl_en_rising_we = addr_hit[11] & reg_we & !reg_error; |
| |
| assign intr_ctrl_en_rising_wd = reg_wdata[31:0]; |
| assign intr_ctrl_en_falling_we = addr_hit[12] & reg_we & !reg_error; |
| |
| assign intr_ctrl_en_falling_wd = reg_wdata[31:0]; |
| assign intr_ctrl_en_lvlhigh_we = addr_hit[13] & reg_we & !reg_error; |
| |
| assign intr_ctrl_en_lvlhigh_wd = reg_wdata[31:0]; |
| assign intr_ctrl_en_lvllow_we = addr_hit[14] & reg_we & !reg_error; |
| |
| assign intr_ctrl_en_lvllow_wd = reg_wdata[31:0]; |
| assign ctrl_en_input_filter_we = addr_hit[15] & reg_we & !reg_error; |
| |
| assign ctrl_en_input_filter_wd = reg_wdata[31:0]; |
| |
| // Assign write-enables to checker logic vector. |
| always_comb begin |
| reg_we_check = '0; |
| reg_we_check[0] = intr_state_we; |
| reg_we_check[1] = intr_enable_we; |
| reg_we_check[2] = intr_test_we; |
| reg_we_check[3] = alert_test_we; |
| reg_we_check[4] = 1'b0; |
| reg_we_check[5] = direct_out_we; |
| reg_we_check[6] = masked_out_lower_we; |
| reg_we_check[7] = masked_out_upper_we; |
| reg_we_check[8] = direct_oe_we; |
| reg_we_check[9] = masked_oe_lower_we; |
| reg_we_check[10] = masked_oe_upper_we; |
| reg_we_check[11] = intr_ctrl_en_rising_we; |
| reg_we_check[12] = intr_ctrl_en_falling_we; |
| reg_we_check[13] = intr_ctrl_en_lvlhigh_we; |
| reg_we_check[14] = intr_ctrl_en_lvllow_we; |
| reg_we_check[15] = ctrl_en_input_filter_we; |
| end |
| |
| // Read data return |
| always_comb begin |
| reg_rdata_next = '0; |
| unique case (1'b1) |
| addr_hit[0]: begin |
| reg_rdata_next[31:0] = intr_state_qs; |
| end |
| |
| addr_hit[1]: begin |
| reg_rdata_next[31:0] = intr_enable_qs; |
| end |
| |
| addr_hit[2]: begin |
| reg_rdata_next[31:0] = '0; |
| end |
| |
| addr_hit[3]: begin |
| reg_rdata_next[0] = '0; |
| end |
| |
| addr_hit[4]: begin |
| reg_rdata_next[31:0] = data_in_qs; |
| end |
| |
| addr_hit[5]: begin |
| reg_rdata_next[31:0] = direct_out_qs; |
| end |
| |
| addr_hit[6]: begin |
| reg_rdata_next[15:0] = masked_out_lower_data_qs; |
| reg_rdata_next[31:16] = '0; |
| end |
| |
| addr_hit[7]: begin |
| reg_rdata_next[15:0] = masked_out_upper_data_qs; |
| reg_rdata_next[31:16] = '0; |
| end |
| |
| addr_hit[8]: begin |
| reg_rdata_next[31:0] = direct_oe_qs; |
| end |
| |
| addr_hit[9]: begin |
| reg_rdata_next[15:0] = masked_oe_lower_data_qs; |
| reg_rdata_next[31:16] = masked_oe_lower_mask_qs; |
| end |
| |
| addr_hit[10]: begin |
| reg_rdata_next[15:0] = masked_oe_upper_data_qs; |
| reg_rdata_next[31:16] = masked_oe_upper_mask_qs; |
| end |
| |
| addr_hit[11]: begin |
| reg_rdata_next[31:0] = intr_ctrl_en_rising_qs; |
| end |
| |
| addr_hit[12]: begin |
| reg_rdata_next[31:0] = intr_ctrl_en_falling_qs; |
| end |
| |
| addr_hit[13]: begin |
| reg_rdata_next[31:0] = intr_ctrl_en_lvlhigh_qs; |
| end |
| |
| addr_hit[14]: begin |
| reg_rdata_next[31:0] = intr_ctrl_en_lvllow_qs; |
| end |
| |
| addr_hit[15]: begin |
| reg_rdata_next[31:0] = ctrl_en_input_filter_qs; |
| end |
| |
| default: begin |
| reg_rdata_next = '1; |
| end |
| endcase |
| end |
| |
| // shadow busy |
| logic shadow_busy; |
| assign shadow_busy = 1'b0; |
| |
| // register busy |
| assign reg_busy = shadow_busy; |
| |
| // Unused signal tieoff |
| |
| // wdata / byte enable are not always fully used |
| // add a blanket unused statement to handle lint waivers |
| logic unused_wdata; |
| logic unused_be; |
| assign unused_wdata = ^reg_wdata; |
| assign unused_be = ^reg_be; |
| |
| // Assertions for Register Interface |
| `ASSERT_PULSE(wePulse, reg_we, clk_i, !rst_ni) |
| `ASSERT_PULSE(rePulse, reg_re, clk_i, !rst_ni) |
| |
| `ASSERT(reAfterRv, $rose(reg_re || reg_we) |=> tl_o_pre.d_valid, clk_i, !rst_ni) |
| |
| `ASSERT(en2addrHit, (reg_we || reg_re) |-> $onehot0(addr_hit), clk_i, !rst_ni) |
| |
| // this is formulated as an assumption such that the FPV testbenches do disprove this |
| // property by mistake |
| //`ASSUME(reqParity, tl_reg_h2d.a_valid |-> tl_reg_h2d.a_user.chk_en == tlul_pkg::CheckDis) |
| |
| endmodule |
