diff options
Diffstat (limited to 'src/rtl')
-rw-r--r-- | src/rtl/sha512.v | 931 |
1 files changed, 78 insertions, 853 deletions
diff --git a/src/rtl/sha512.v b/src/rtl/sha512.v index a0e5f9f..085783b 100644 --- a/src/rtl/sha512.v +++ b/src/rtl/sha512.v @@ -75,36 +75,6 @@ module sha512( parameter ADDR_WORK_FACTOR_NUM = 8'h0a; parameter ADDR_BLOCK0 = 8'h10; - parameter ADDR_BLOCK1 = 8'h11; - parameter ADDR_BLOCK2 = 8'h12; - parameter ADDR_BLOCK3 = 8'h13; - parameter ADDR_BLOCK4 = 8'h14; - parameter ADDR_BLOCK5 = 8'h15; - parameter ADDR_BLOCK6 = 8'h16; - parameter ADDR_BLOCK7 = 8'h17; - parameter ADDR_BLOCK8 = 8'h18; - parameter ADDR_BLOCK9 = 8'h19; - parameter ADDR_BLOCK10 = 8'h1a; - parameter ADDR_BLOCK11 = 8'h1b; - parameter ADDR_BLOCK12 = 8'h1c; - parameter ADDR_BLOCK13 = 8'h1d; - parameter ADDR_BLOCK14 = 8'h1e; - parameter ADDR_BLOCK15 = 8'h1f; - parameter ADDR_BLOCK16 = 8'h20; - parameter ADDR_BLOCK17 = 8'h21; - parameter ADDR_BLOCK18 = 8'h22; - parameter ADDR_BLOCK19 = 8'h23; - parameter ADDR_BLOCK20 = 8'h24; - parameter ADDR_BLOCK21 = 8'h25; - parameter ADDR_BLOCK22 = 8'h26; - parameter ADDR_BLOCK23 = 8'h27; - parameter ADDR_BLOCK24 = 8'h28; - parameter ADDR_BLOCK25 = 8'h29; - parameter ADDR_BLOCK26 = 8'h2a; - parameter ADDR_BLOCK27 = 8'h2b; - parameter ADDR_BLOCK28 = 8'h2c; - parameter ADDR_BLOCK29 = 8'h2d; - parameter ADDR_BLOCK30 = 8'h2e; parameter ADDR_BLOCK31 = 8'h2f; parameter ADDR_DIGEST0 = 8'h40; @@ -126,7 +96,7 @@ module sha512( parameter CORE_NAME0 = 32'h73686132; // "sha2" parameter CORE_NAME1 = 32'h2d353132; // "-512" - parameter CORE_VERSION = 32'h302e3830; // "0.80" + parameter CORE_VERSION = 32'h302e3831; // "0.81" parameter MODE_SHA_512_224 = 2'h0; parameter MODE_SHA_512_256 = 2'h1; @@ -162,70 +132,8 @@ module sha512( reg ready_reg; - reg [31 : 0] block0_reg; - reg block0_we; - reg [31 : 0] block1_reg; - reg block1_we; - reg [31 : 0] block2_reg; - reg block2_we; - reg [31 : 0] block3_reg; - reg block3_we; - reg [31 : 0] block4_reg; - reg block4_we; - reg [31 : 0] block5_reg; - reg block5_we; - reg [31 : 0] block6_reg; - reg block6_we; - reg [31 : 0] block7_reg; - reg block7_we; - reg [31 : 0] block8_reg; - reg block8_we; - reg [31 : 0] block9_reg; - reg block9_we; - reg [31 : 0] block10_reg; - reg block10_we; - reg [31 : 0] block11_reg; - reg block11_we; - reg [31 : 0] block12_reg; - reg block12_we; - reg [31 : 0] block13_reg; - reg block13_we; - reg [31 : 0] block14_reg; - reg block14_we; - reg [31 : 0] block15_reg; - reg block15_we; - reg [31 : 0] block16_reg; - reg block16_we; - reg [31 : 0] block17_reg; - reg block17_we; - reg [31 : 0] block18_reg; - reg block18_we; - reg [31 : 0] block19_reg; - reg block19_we; - reg [31 : 0] block20_reg; - reg block20_we; - reg [31 : 0] block21_reg; - reg block21_we; - reg [31 : 0] block22_reg; - reg block22_we; - reg [31 : 0] block23_reg; - reg block23_we; - reg [31 : 0] block24_reg; - reg block24_we; - reg [31 : 0] block25_reg; - reg block25_we; - reg [31 : 0] block26_reg; - reg block26_we; - reg [31 : 0] block27_reg; - reg block27_we; - reg [31 : 0] block28_reg; - reg block28_we; - reg [31 : 0] block29_reg; - reg block29_we; - reg [31 : 0] block30_reg; - reg block30_we; - reg [31 : 0] block31_reg; - reg block31_we; + reg [31 : 0] block_reg [0 : 31]; + reg block_we; reg [511 : 0] digest_reg; reg digest_valid_reg; @@ -234,16 +142,13 @@ module sha512( //---------------------------------------------------------------- // Wires. //---------------------------------------------------------------- - wire core_init; - wire core_next; - wire [1 : 0] core_mode; - wire core_work_factor; - wire [31 : 0] core_work_factor_num; wire core_ready; wire [1023 : 0] core_block; wire [511 : 0] core_digest; wire core_digest_valid; + reg [4 : 0] block_addr; + reg state00_we; reg state01_we; reg state02_we; @@ -261,7 +166,6 @@ module sha512( reg state14_we; reg state15_we; - reg [31 : 0] tmp_read_data; reg tmp_error; @@ -269,22 +173,14 @@ module sha512( //---------------------------------------------------------------- // Concurrent connectivity for ports etc. //---------------------------------------------------------------- - assign core_init = init_reg; - - assign core_next = next_reg; - - assign core_mode = mode_reg; - - assign core_work_factor = work_factor_reg; - assign core_work_factor_num = work_factor_num_reg; - - assign core_block = {block0_reg, block1_reg, block2_reg, block3_reg, block4_reg, - block5_reg, block6_reg, block7_reg, block8_reg, block9_reg, - block10_reg, block11_reg, block12_reg, block13_reg, block14_reg, - block15_reg, block16_reg, block17_reg, block18_reg, block19_reg, - block20_reg, block21_reg, block22_reg, block23_reg, block24_reg, - block25_reg, block26_reg, block27_reg, block28_reg, block29_reg, - block30_reg, block31_reg}; + assign core_block = {block_reg[00], block_reg[01], block_reg[02], block_reg[03], + block_reg[04], block_reg[05], block_reg[06], block_reg[07], + block_reg[08], block_reg[09], block_reg[10], block_reg[11], + block_reg[12], block_reg[13], block_reg[14], block_reg[15], + block_reg[16], block_reg[17], block_reg[18], block_reg[19], + block_reg[20], block_reg[21], block_reg[22], block_reg[23], + block_reg[24], block_reg[25], block_reg[26], block_reg[27], + block_reg[28], block_reg[29], block_reg[30], block_reg[31]}; assign read_data = tmp_read_data; assign error = tmp_error; @@ -297,12 +193,12 @@ module sha512( .clk(clk), .reset_n(reset_n), - .init(core_init), - .next(core_next), - .mode(core_mode), + .init(init_reg), + .next(next_reg), + .mode(mode_reg), - .work_factor(core_work_factor), - .work_factor_num(core_work_factor_num), + .work_factor(work_factor_reg), + .work_factor_num(work_factor_num_reg), .block(core_block), @@ -339,9 +235,14 @@ module sha512( // active low reset. All registers have write enable. //---------------------------------------------------------------- always @ (posedge clk or negedge reset_n) - begin + begin : reg_update + integer i; + if (!reset_n) begin + for (i = 0 ; i < 32 ; i = i + 1) + block_reg[i] <= 32'h0; + init_reg <= 1'h0; next_reg <= 1'h0; mode_reg <= MODE_SHA_512; @@ -350,274 +251,33 @@ module sha512( ready_reg <= 1'h0; digest_reg <= 512'h0; digest_valid_reg <= 1'h0; - block0_reg <= 32'h0; - block1_reg <= 32'h0; - block2_reg <= 32'h0; - block3_reg <= 32'h0; - block4_reg <= 32'h0; - block5_reg <= 32'h0; - block6_reg <= 32'h0; - block7_reg <= 32'h0; - block8_reg <= 32'h0; - block9_reg <= 32'h0; - block10_reg <= 32'h0; - block11_reg <= 32'h0; - block12_reg <= 32'h0; - block13_reg <= 32'h0; - block14_reg <= 32'h0; - block15_reg <= 32'h0; - block16_reg <= 32'h0; - block17_reg <= 32'h0; - block18_reg <= 32'h0; - block19_reg <= 32'h0; - block20_reg <= 32'h0; - block21_reg <= 32'h0; - block22_reg <= 32'h0; - block23_reg <= 32'h0; - block24_reg <= 32'h0; - block25_reg <= 32'h0; - block26_reg <= 32'h0; - block27_reg <= 32'h0; - block28_reg <= 32'h0; - block29_reg <= 32'h0; - block30_reg <= 32'h0; - block31_reg <= 32'h0; end else begin ready_reg <= core_ready; digest_valid_reg <= core_digest_valid; - - if (init_we) - begin - init_reg <= init_new; - end - - if (next_we) - begin - next_reg <= next_new; - end + init_reg <= init_new; + next_reg <= next_new; if (mode_we) - begin - mode_reg <= mode_new; - end + mode_reg <= mode_new; if (work_factor_we) - begin - work_factor_reg <= work_factor_new; - end + work_factor_reg <= work_factor_new; if (work_factor_num_we) - begin - work_factor_num_reg <= write_data; - end + work_factor_num_reg <= write_data; if (core_digest_valid) - begin - digest_reg <= core_digest; - end - - if (block0_we) - begin - block0_reg <= write_data; - end - - if (block1_we) - begin - block1_reg <= write_data; - end - - if (block2_we) - begin - block2_reg <= write_data; - end - - if (block3_we) - begin - block3_reg <= write_data; - end - - if (block4_we) - begin - block4_reg <= write_data; - end - - if (block5_we) - begin - block5_reg <= write_data; - end - - if (block6_we) - begin - block6_reg <= write_data; - end - - if (block7_we) - begin - block7_reg <= write_data; - end - - if (block8_we) - begin - block8_reg <= write_data; - end - - if (block9_we) - begin - block9_reg <= write_data; - end - - if (block10_we) - begin - block10_reg <= write_data; - end - - if (block11_we) - begin - block11_reg <= write_data; - end - - if (block12_we) - begin - block12_reg <= write_data; - end - - if (block13_we) - begin - block13_reg <= write_data; - end - - if (block14_we) - begin - block14_reg <= write_data; - end - - if (block15_we) - begin - block15_reg <= write_data; - end - - if (block16_we) - begin - block16_reg <= write_data; - end - - if (block17_we) - begin - block17_reg <= write_data; - end - - if (block18_we) - begin - block18_reg <= write_data; - end - - if (block19_we) - begin - block19_reg <= write_data; - end - - if (block20_we) - begin - block20_reg <= write_data; - end - - if (block21_we) - begin - block21_reg <= write_data; - end - - if (block22_we) - begin - block22_reg <= write_data; - end - - if (block23_we) - begin - block23_reg <= write_data; - end - - if (block24_we) - begin - block24_reg <= write_data; - end - - if (block25_we) - begin - block25_reg <= write_data; - end - - if (block26_we) - begin - block26_reg <= write_data; - end - - if (block27_we) - begin - block27_reg <= write_data; - end - - if (block28_we) - begin - block28_reg <= write_data; - end - - if (block29_we) - begin - block29_reg <= write_data; - end - - if (block30_we) - begin - block30_reg <= write_data; - end + digest_reg <= core_digest; - if (block31_we) - begin - block31_reg <= write_data; - end + if (block_we) + block_reg[block_addr] <= write_data; end end // reg_update //---------------------------------------------------------------- - // flag_reset - // - // Logic to reset init and next flags that has been set. - //---------------------------------------------------------------- - always @* - begin : flag_reset - init_new = 0; - init_we = 0; - next_new = 0; - next_we = 0; - - if (init_set) - begin - init_new = 1; - init_we = 1; - end - else if (init_reg) - begin - init_new = 0; - init_we = 1; - end - - if (next_set) - begin - next_new = 1; - next_we = 1; - end - else if (next_reg) - begin - next_new = 0; - next_we = 1; - end - end - - - //---------------------------------------------------------------- // api_logic // // Implementation of the api logic. If cs is enabled will either @@ -625,78 +285,51 @@ module sha512( //---------------------------------------------------------------- always @* begin : api_logic - init_set = 0; - next_set = 0; - mode_new = 2'b00; - mode_we = 0; - work_factor_new = 0; - work_factor_we = 0; - work_factor_num_we = 0; - block0_we = 0; - block1_we = 0; - block2_we = 0; - block3_we = 0; - block4_we = 0; - block5_we = 0; - block6_we = 0; - block7_we = 0; - block8_we = 0; - block9_we = 0; - block10_we = 0; - block11_we = 0; - block12_we = 0; - block13_we = 0; - block14_we = 0; - block15_we = 0; - block16_we = 0; - block17_we = 0; - block18_we = 0; - block19_we = 0; - block20_we = 0; - block21_we = 0; - block22_we = 0; - block23_we = 0; - block24_we = 0; - block25_we = 0; - block26_we = 0; - block27_we = 0; - block28_we = 0; - block29_we = 0; - block30_we = 0; - block31_we = 0; - state00_we = 0; - state01_we = 0; - state02_we = 0; - state03_we = 0; - state04_we = 0; - state05_we = 0; - state06_we = 0; - state07_we = 0; - state08_we = 0; - state09_we = 0; - state10_we = 0; - state11_we = 0; - state12_we = 0; - state13_we = 0; - state14_we = 0; - state15_we = 0; + init_new = 1'h0; + next_new = 1'h0; + mode_new = MODE_SHA_512; + mode_we = 1'h0; + work_factor_new = 1'h0; + work_factor_we = 1'h0; + work_factor_num_we = 1'h0; + block_we = 1'h0; + state00_we = 1'h0; + state01_we = 1'h0; + state02_we = 1'h0; + state03_we = 1'h0; + state04_we = 1'h0; + state05_we = 1'h0; + state06_we = 1'h0; + state07_we = 1'h0; + state08_we = 1'h0; + state09_we = 1'h0; + state10_we = 1'h0; + state11_we = 1'h0; + state12_we = 1'h0; + state13_we = 1'h0; + state14_we = 1'h0; + state15_we = 1'h0; tmp_read_data = 32'h00000000; - tmp_error = 0; + tmp_error = 1'h0; + + block_addr = address[4 : 0] - ADDR_BLOCK0[4 : 0]; if (cs) begin if (we) begin + if ((address >= ADDR_BLOCK0) && (address <= ADDR_BLOCK31)) + block_we = 1'h1; + case (address) - // Write operations. ADDR_CTRL: begin - init_set = write_data[CTRL_INIT_BIT]; - next_set = write_data[CTRL_NEXT_BIT]; + init_new = write_data[CTRL_INIT_BIT]; + next_new = write_data[CTRL_NEXT_BIT]; mode_new = write_data[CTRL_MODE_HIGH_BIT : CTRL_MODE_LOW_BIT]; + mode_we = 1'h1; work_factor_new = write_data[CTRL_WORK_FACTOR_BIT]; - work_factor_we = 1; - mode_we = 1; + work_factor_we = 1'h1; end ADDR_WORK_FACTOR_NUM: @@ -704,166 +337,6 @@ module sha512( work_factor_num_we = 1; end - ADDR_BLOCK0: - begin - block0_we = 1; - end - - ADDR_BLOCK1: - begin - block1_we = 1; - end - - ADDR_BLOCK2: - begin - block2_we = 1; - end - - ADDR_BLOCK3: - begin - block3_we = 1; - end - - ADDR_BLOCK4: - begin - block4_we = 1; - end - - ADDR_BLOCK5: - begin - block5_we = 1; - end - - ADDR_BLOCK6: - begin - block6_we = 1; - end - - ADDR_BLOCK7: - begin - block7_we = 1; - end - - ADDR_BLOCK8: - begin - block8_we = 1; - end - - ADDR_BLOCK9: - begin - block9_we = 1; - end - - ADDR_BLOCK10: - begin - block10_we = 1; - end - - ADDR_BLOCK11: - begin - block11_we = 1; - end - - ADDR_BLOCK12: - begin - block12_we = 1; - end - - ADDR_BLOCK13: - begin - block13_we = 1; - end - - ADDR_BLOCK14: - begin - block14_we = 1; - end - - ADDR_BLOCK15: - begin - block15_we = 1; - end - - ADDR_BLOCK16: - begin - block16_we = 1; - end - - ADDR_BLOCK17: - begin - block17_we = 1; - end - - ADDR_BLOCK18: - begin - block18_we = 1; - end - - ADDR_BLOCK19: - begin - block19_we = 1; - end - - ADDR_BLOCK20: - begin - block20_we = 1; - end - - ADDR_BLOCK21: - begin - block21_we = 1; - end - - ADDR_BLOCK22: - begin - block22_we = 1; - end - - ADDR_BLOCK23: - begin - block23_we = 1; - end - - ADDR_BLOCK24: - begin - block24_we = 1; - end - - ADDR_BLOCK25: - begin - block25_we = 1; - end - - ADDR_BLOCK26: - begin - block26_we = 1; - end - - ADDR_BLOCK27: - begin - block27_we = 1; - end - - ADDR_BLOCK28: - begin - block28_we = 1; - end - - ADDR_BLOCK29: - begin - block29_we = 1; - end - - ADDR_BLOCK30: - begin - block30_we = 1; - end - - ADDR_BLOCK31: - begin - block31_we = 1; - end - ADDR_DIGEST0: state00_we = 1; @@ -921,278 +394,30 @@ module sha512( else begin + if ((address >= ADDR_DIGEST0) && (address <= ADDR_DIGEST15)) + tmp_read_data = digest_reg[(15 - (address - ADDR_DIGEST0)) * 32 +: 32]; + + if ((address >= ADDR_BLOCK0) && (address <= ADDR_BLOCK31)) + tmp_read_data = block_reg[address[4 : 0]]; + case (address) - // Read operations. ADDR_NAME0: - begin - tmp_read_data = CORE_NAME0; - end + tmp_read_data = CORE_NAME0; ADDR_NAME1: - begin - tmp_read_data = CORE_NAME1; - end + tmp_read_data = CORE_NAME1; ADDR_VERSION: - begin - tmp_read_data = CORE_VERSION; - end + tmp_read_data = CORE_VERSION; ADDR_CTRL: - begin - tmp_read_data = {24'h000000, work_factor_reg, 3'b000, - mode_reg, next_reg, init_reg}; - end + tmp_read_data = {24'h000000, work_factor_reg, 3'b000, mode_reg, next_reg, init_reg}; ADDR_STATUS: - begin - tmp_read_data = {28'h0000000, 2'b00, digest_valid_reg, ready_reg}; - end + tmp_read_data = {28'h0000000, 2'b00, digest_valid_reg, ready_reg}; ADDR_WORK_FACTOR_NUM: - begin - tmp_read_data = work_factor_num_reg; - end - - ADDR_BLOCK0: - begin - tmp_read_data = block0_reg; - end - - ADDR_BLOCK1: - begin - tmp_read_data = block1_reg; - end - - ADDR_BLOCK2: - begin - tmp_read_data = block2_reg; - end - - ADDR_BLOCK3: - begin - tmp_read_data = block3_reg; - end - - ADDR_BLOCK4: - begin - tmp_read_data = block4_reg; - end - - ADDR_BLOCK5: - begin - tmp_read_data = block5_reg; - end - - ADDR_BLOCK6: - begin - tmp_read_data = block6_reg; - end - - ADDR_BLOCK7: - begin - tmp_read_data = block7_reg; - end - - ADDR_BLOCK8: - begin - tmp_read_data = block8_reg; - end - - ADDR_BLOCK9: - begin - tmp_read_data = block9_reg; - end - - ADDR_BLOCK10: - begin - tmp_read_data = block10_reg; - end - - ADDR_BLOCK11: - begin - tmp_read_data = block11_reg; - end - - ADDR_BLOCK12: - begin - tmp_read_data = block12_reg; - end - - ADDR_BLOCK13: - begin - tmp_read_data = block13_reg; - end - - ADDR_BLOCK14: - begin - tmp_read_data = block14_reg; - end - - ADDR_BLOCK15: - begin - tmp_read_data = block15_reg; - end - - ADDR_BLOCK16: - begin - tmp_read_data = block16_reg; - end - - ADDR_BLOCK17: - begin - tmp_read_data = block17_reg; - end - - ADDR_BLOCK18: - begin - tmp_read_data = block18_reg; - end - - ADDR_BLOCK19: - begin - tmp_read_data = block19_reg; - end - - ADDR_BLOCK20: - begin - tmp_read_data = block20_reg; - end - - ADDR_BLOCK21: - begin - tmp_read_data = block21_reg; - end - - ADDR_BLOCK22: - begin - tmp_read_data = block22_reg; - end - - ADDR_BLOCK23: - begin - tmp_read_data = block23_reg; - end - - ADDR_BLOCK24: - begin - tmp_read_data = block24_reg; - end - - ADDR_BLOCK25: - begin - tmp_read_data = block25_reg; - end - - ADDR_BLOCK26: - begin - tmp_read_data = block26_reg; - end - - ADDR_BLOCK27: - begin - tmp_read_data = block27_reg; - end - - ADDR_BLOCK28: - begin - tmp_read_data = block28_reg; - end - - ADDR_BLOCK29: - begin - tmp_read_data = block29_reg; - end - - ADDR_BLOCK30: - begin - tmp_read_data = block30_reg; - end - - ADDR_BLOCK31: - begin - tmp_read_data = block31_reg; - end - - ADDR_DIGEST0: - begin - tmp_read_data = digest_reg[511 : 480]; - end - - ADDR_DIGEST1: - begin - tmp_read_data = digest_reg[479 : 448]; - end - - ADDR_DIGEST2: - begin - tmp_read_data = digest_reg[447 : 416]; - end - - ADDR_DIGEST3: - begin - tmp_read_data = digest_reg[415 : 384]; - end - - ADDR_DIGEST4: - begin - tmp_read_data = digest_reg[383 : 352]; - end - - ADDR_DIGEST5: - begin - tmp_read_data = digest_reg[351 : 320]; - end - - ADDR_DIGEST6: - begin - tmp_read_data = digest_reg[319 : 288]; - end - - ADDR_DIGEST7: - begin - tmp_read_data = digest_reg[287 : 256]; - end - - ADDR_DIGEST8: - begin - tmp_read_data = digest_reg[255 : 224]; - end - - ADDR_DIGEST9: - begin - tmp_read_data = digest_reg[223 : 192]; - end - - ADDR_DIGEST10: - begin - tmp_read_data = digest_reg[191 : 160]; - end - - ADDR_DIGEST11: - begin - tmp_read_data = digest_reg[159 : 128]; - end - - ADDR_DIGEST12: - begin - tmp_read_data = digest_reg[127 : 96]; - end - - ADDR_DIGEST13: - begin - tmp_read_data = digest_reg[95 : 64]; - end - - ADDR_DIGEST14: - begin - tmp_read_data = digest_reg[63 : 32]; - end - - ADDR_DIGEST15: - begin - tmp_read_data = digest_reg[31 : 0]; - end + tmp_read_data = work_factor_num_reg; default: begin |