From: Anton Blanchard Date: Tue, 7 Jun 2022 07:38:24 +0000 (+1000) Subject: Remove some FPGA style signal inits X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=a750365ffa5f07046256d2824520817a6f704214;p=microwatt.git Remove some FPGA style signal inits These don't work on the ASIC flow, so remove them and initialise them explicitly where required. Signed-off-by: Anton Blanchard --- diff --git a/control.vhdl b/control.vhdl index 589ad96..1d55517 100644 --- a/control.vhdl +++ b/control.vhdl @@ -64,8 +64,8 @@ architecture rtl of control is signal r_int, rin_int : reg_internal_type := reg_internal_init; - signal gpr_write_valid : std_ulogic := '0'; - signal cr_write_valid : std_ulogic := '0'; + signal gpr_write_valid : std_ulogic; + signal cr_write_valid : std_ulogic; type tag_register is record wr_gpr : std_ulogic; @@ -245,6 +245,8 @@ begin end if; if rst = '1' then + gpr_write_valid <= '0'; + cr_write_valid <= '0'; v_int := reg_internal_init; valid_tmp := '0'; end if; diff --git a/core.vhdl b/core.vhdl index cf730c5..7614e93 100644 --- a/core.vhdl +++ b/core.vhdl @@ -121,17 +121,17 @@ architecture behave of core is signal do_interrupt: std_ulogic; -- Delayed/Latched resets and alt_reset - signal rst_fetch1 : std_ulogic := '1'; - signal rst_fetch2 : std_ulogic := '1'; - signal rst_icache : std_ulogic := '1'; - signal rst_dcache : std_ulogic := '1'; - signal rst_dec1 : std_ulogic := '1'; - signal rst_dec2 : std_ulogic := '1'; - signal rst_ex1 : std_ulogic := '1'; - signal rst_fpu : std_ulogic := '1'; - signal rst_ls1 : std_ulogic := '1'; - signal rst_wback : std_ulogic := '1'; - signal rst_dbg : std_ulogic := '1'; + signal rst_fetch1 : std_ulogic; + signal rst_fetch2 : std_ulogic; + signal rst_icache : std_ulogic; + signal rst_dcache : std_ulogic; + signal rst_dec1 : std_ulogic; + signal rst_dec2 : std_ulogic; + signal rst_ex1 : std_ulogic; + signal rst_fpu : std_ulogic; + signal rst_ls1 : std_ulogic; + signal rst_wback : std_ulogic; + signal rst_dbg : std_ulogic; signal alt_reset_d : std_ulogic; signal sim_cr_dump: std_ulogic; diff --git a/execute1.vhdl b/execute1.vhdl index 54f8dc1..fde37e7 100644 --- a/execute1.vhdl +++ b/execute1.vhdl @@ -99,8 +99,8 @@ architecture behaviour of execute1 is signal mshort_p : std_ulogic_vector(31 downto 0) := (others => '0'); signal valid_in : std_ulogic; - signal ctrl: ctrl_t := (others => (others => '0')); - signal ctrl_tmp: ctrl_t := (others => (others => '0')); + signal ctrl: ctrl_t; + signal ctrl_tmp: ctrl_t; signal right_shift, rot_clear_left, rot_clear_right: std_ulogic; signal rot_sign_ext: std_ulogic; signal rotator_result: std_ulogic_vector(63 downto 0); @@ -406,6 +406,7 @@ begin r <= reg_type_init; ctrl.tb <= (others => '0'); ctrl.dec <= (others => '0'); + ctrl.cfar <= (others => '0'); ctrl.msr <= (MSR_SF => '1', MSR_LE => '1', others => '0'); else r <= rin; diff --git a/gpio.vhdl b/gpio.vhdl index c1840f1..d5454a2 100644 --- a/gpio.vhdl +++ b/gpio.vhdl @@ -40,8 +40,8 @@ architecture behaviour of gpio is constant GPIO_REG_DATA_CLR : std_ulogic_vector(GPIO_REG_BITS-1 downto 0) := "00101"; -- Current output value and direction - signal reg_data : std_ulogic_vector(NGPIO - 1 downto 0) := (others => '0'); - signal reg_dirn : std_ulogic_vector(NGPIO - 1 downto 0) := (others => '0'); + signal reg_data : std_ulogic_vector(NGPIO - 1 downto 0); + signal reg_dirn : std_ulogic_vector(NGPIO - 1 downto 0); signal reg_in1 : std_ulogic_vector(NGPIO - 1 downto 0); signal reg_in2 : std_ulogic_vector(NGPIO - 1 downto 0); diff --git a/soc.vhdl b/soc.vhdl index d408993..ec3a8a3 100644 --- a/soc.vhdl +++ b/soc.vhdl @@ -223,15 +223,15 @@ architecture behaviour of soc is signal dmi_core_ack : std_ulogic; -- Delayed/latched resets and alt_reset - signal rst_core : std_ulogic := '1'; - signal rst_uart : std_ulogic := '1'; - signal rst_xics : std_ulogic := '1'; - signal rst_spi : std_ulogic := '1'; - signal rst_gpio : std_ulogic := '1'; - signal rst_bram : std_ulogic := '1'; - signal rst_dtm : std_ulogic := '1'; - signal rst_wbar : std_ulogic := '1'; - signal rst_wbdb : std_ulogic := '1'; + signal rst_core : std_ulogic; + signal rst_uart : std_ulogic; + signal rst_xics : std_ulogic; + signal rst_spi : std_ulogic; + signal rst_gpio : std_ulogic; + signal rst_bram : std_ulogic; + signal rst_dtm : std_ulogic; + signal rst_wbar : std_ulogic; + signal rst_wbdb : std_ulogic; signal alt_reset_d : std_ulogic; -- IO branch split: diff --git a/spi_flash_ctrl.vhdl b/spi_flash_ctrl.vhdl index 27e8926..b9d3c7a 100644 --- a/spi_flash_ctrl.vhdl +++ b/spi_flash_ctrl.vhdl @@ -50,7 +50,7 @@ architecture rtl of spi_flash_ctrl is constant SPI_REG_INVALID : std_ulogic_vector(SPI_REG_BITS-1 downto 0) := "111"; -- Control register - signal ctrl_reg : std_ulogic_vector(15 downto 0) := (others => '0'); + signal ctrl_reg : std_ulogic_vector(15 downto 0); alias ctrl_reset : std_ulogic is ctrl_reg(0); alias ctrl_cs : std_ulogic is ctrl_reg(1); alias ctrl_rsrv1 : std_ulogic is ctrl_reg(2);