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fpga:cmod_a7:top: add bootrom module and use xip instead of flash_ctrl module 

Signed-off-by: liangkangnan <liangkangnan@163.com>
verilator
liangkangnan 2023-04-01 15:18:17 +08:00
parent 3eaa4cdc97
commit da19d3ebe5
1 changed files with 35 additions and 36 deletions
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71
fpga/xilinx/cmod_a7/tinyriscv_soc_top.sv
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@ -43,7 +43,7 @@ module tinyriscv_soc_top #(
); );
localparam int MASTERS = 3; // Number of master ports localparam int MASTERS = 3; // Number of master ports
localparam int SLAVES = 16; // Number of slave ports localparam int SLAVES = 17; // Number of slave ports
// masters // masters
localparam int JtagHost = 0; localparam int JtagHost = 0;
@ -66,7 +66,8 @@ module tinyriscv_soc_top #(
localparam int I2c1 = 12; localparam int I2c1 = 12;
localparam int Timer1 = 13; localparam int Timer1 = 13;
localparam int Timer2 = 14; localparam int Timer2 = 14;
localparam int FlashCtrl = 15; localparam int Xip = 15;
localparam int Bootrom = 16;
wire master_req [MASTERS]; wire master_req [MASTERS];
wire master_gnt [MASTERS]; wire master_gnt [MASTERS];
@ -178,6 +179,8 @@ module tinyriscv_soc_top #(
assign rst_ext_n = ~rst_ext_i; assign rst_ext_n = ~rst_ext_i;
assign halted_ind_pin = core_halted; assign halted_ind_pin = core_halted;
assign master_we[CoreI] = '0;
assign master_be[CoreI] = '0;
tinyriscv_core #( tinyriscv_core #(
.DEBUG_HALT_ADDR(`DEBUG_ADDR_BASE + `HaltAddress), .DEBUG_HALT_ADDR(`DEBUG_ADDR_BASE + `HaltAddress),
.DEBUG_EXCEPTION_ADDR(`DEBUG_ADDR_BASE + `ExceptionAddress), .DEBUG_EXCEPTION_ADDR(`DEBUG_ADDR_BASE + `ExceptionAddress),
@ -190,7 +193,7 @@ module tinyriscv_soc_top #(
.instr_req_o (master_req[CoreI]), .instr_req_o (master_req[CoreI]),
.instr_gnt_i (master_gnt[CoreI]), .instr_gnt_i (master_gnt[CoreI]),
.instr_rvalid_i (master_rvalid[CoreI]), .instr_rvalid_i (master_rvalid[CoreI]),
.instr_addr_o (core_instr_addr), .instr_addr_o (master_addr[CoreI]),
.instr_rdata_i (master_rdata[CoreI]), .instr_rdata_i (master_rdata[CoreI]),
.instr_err_i (1'b0), .instr_err_i (1'b0),
@ -199,7 +202,7 @@ module tinyriscv_soc_top #(
.data_rvalid_i (master_rvalid[CoreD]), .data_rvalid_i (master_rvalid[CoreD]),
.data_we_o (master_we[CoreD]), .data_we_o (master_we[CoreD]),
.data_be_o (master_be[CoreD]), .data_be_o (master_be[CoreD]),
.data_addr_o (core_data_addr), .data_addr_o (master_addr[CoreD]),
.data_wdata_o (master_wdata[CoreD]), .data_wdata_o (master_wdata[CoreD]),
.data_rdata_i (master_rdata[CoreD]), .data_rdata_i (master_rdata[CoreD]),
.data_err_i (1'b0), .data_err_i (1'b0),
@ -210,26 +213,6 @@ module tinyriscv_soc_top #(
.debug_req_i (debug_req) .debug_req_i (debug_req)
); );
// 是否访问flash
wire instr_access_flash;
wire data_access_flash;
assign instr_access_flash = ((core_instr_addr & (`FLASH_ADDR_MASK)) == `FLASH_ADDR_BASE);
assign data_access_flash = ((core_data_addr & (`FLASH_ADDR_MASK)) == `FLASH_ADDR_BASE);
// 转换后的地址
wire [31:0] instr_tran_addr;
wire [31:0] data_tran_addr;
assign instr_tran_addr = (core_instr_addr & (~(`FLASH_CTRL_ADDR_MASK))) | `FLASH_CTRL_ADDR_BASE;
assign data_tran_addr = (core_data_addr & (~(`FLASH_CTRL_ADDR_MASK))) | `FLASH_CTRL_ADDR_BASE;
// 当访问flash空间时，转去访问flash ctrl模块
assign master_addr[CoreI] = instr_access_flash ? ({instr_tran_addr[31:24], 1'b1, instr_tran_addr[22:0]}) :
core_instr_addr;
assign master_addr[CoreD] = data_access_flash ? ({data_tran_addr[31:24], 1'b1, data_tran_addr[22:0]}) :
core_data_addr;
assign slave_addr_mask[Rom] = `ROM_ADDR_MASK; assign slave_addr_mask[Rom] = `ROM_ADDR_MASK;
assign slave_addr_base[Rom] = `ROM_ADDR_BASE; assign slave_addr_base[Rom] = `ROM_ADDR_BASE;
// 1.指令存储器 // 1.指令存储器
@ -561,10 +544,10 @@ module tinyriscv_soc_top #(
assign flash_spi_dq_in[j] = flash_spi_dq_pin[j]; assign flash_spi_dq_in[j] = flash_spi_dq_pin[j];
end end
assign slave_addr_mask[FlashCtrl] = `FLASH_CTRL_ADDR_MASK; assign slave_addr_mask[Xip] = `XIP_ADDR_MASK;
assign slave_addr_base[FlashCtrl] = `FLASH_CTRL_ADDR_BASE; assign slave_addr_base[Xip] = `XIP_ADDR_BASE;
// 15.flash ctrl模块 // 15.xip模块
flash_ctrl_top flash_ctrl ( xip_top xip (
.clk_i (clk), .clk_i (clk),
.rst_ni (ndmreset_n), .rst_ni (ndmreset_n),
.spi_clk_o (flash_spi_clk_pin), .spi_clk_o (flash_spi_clk_pin),
@ -583,14 +566,30 @@ module tinyriscv_soc_top #(
.spi_dq3_i (flash_spi_dq_in[3]), .spi_dq3_i (flash_spi_dq_in[3]),
.spi_dq3_o (flash_spi_dq_out[3]), .spi_dq3_o (flash_spi_dq_out[3]),
.spi_dq3_oe_o (flash_spi_dq_oe[3]), .spi_dq3_oe_o (flash_spi_dq_oe[3]),
.req_i (slave_req[FlashCtrl]), .req_i (slave_req[Xip]),
.we_i (slave_we[FlashCtrl]), .we_i (slave_we[Xip]),
.be_i (slave_be[FlashCtrl]), .be_i (slave_be[Xip]),
.addr_i (slave_addr[FlashCtrl]), .addr_i (slave_addr[Xip]),
.data_i (slave_wdata[FlashCtrl]), .data_i (slave_wdata[Xip]),
.gnt_o (slave_gnt[FlashCtrl]), .gnt_o (slave_gnt[Xip]),
.rvalid_o (slave_rvalid[FlashCtrl]), .rvalid_o (slave_rvalid[Xip]),
.data_o (slave_rdata[FlashCtrl]) .data_o (slave_rdata[Xip])
);
assign slave_addr_mask[Bootrom] = `BOOTROM_ADDR_MASK;
assign slave_addr_base[Bootrom] = `BOOTROM_ADDR_BASE;
// 16.bootrom模块
bootrom_top bootrom(
.clk_i (clk),
.rst_ni (ndmreset_n),
.req_i (slave_req[Bootrom]),
.we_i (slave_we[Bootrom]),
.be_i (slave_be[Bootrom]),
.addr_i (slave_addr[Bootrom]),
.data_i (slave_wdata[Bootrom]),
.gnt_o (slave_gnt[Bootrom]),
.rvalid_o(slave_rvalid[Bootrom]),
.data_o (slave_rdata[Bootrom])
); );
// 内部总线 // 内部总线