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Commit 816c0554 authored by Peter Jansweijer's avatar Peter Jansweijer
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family7-gthe4-lp lpdc via wishbone mdio

parent 64c1032f
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Showing with 52 additions and 58 deletions
platform/xilinx/wr_gtp_phy/Manifest.py
View file @ 816c0554
......@@ -162,6 +162,7 @@ elif (syn_device[0:6].upper()=="XCAU10" or # Artix Ultrascale+ AU10P AU15P GTH
files.extend([
"family7-gthe4-lp/wr_gthe4_phy_family7_lp.vhd",
"family7-gtx-lp/gtx_comma_detect_lp.vhd",
"common/lpdc_mdio_regs.vhd",
]);
files.extend( xilinx_ip_gthe4_lp ); # Note that gthe4 depend on Vivado version
files.extend( xilinx_ip_gthe4_common_lp ); # and instantiate its specific common files
platform/xilinx/wr_gtp_phy/family7-gthe4-lp/wr_gthe4_phy_family7_lp.vhd
View file @ 816c0554
......@@ -6,7 +6,7 @@
-- Author : Peter Jansweijer, Tomasz Wlostowski
-- Company : CERN BE-CO-HT
-- Created : 2013-04-08
-- Last update: 2023-01-27
-- Last update: 2023-06-06
-- Platform : FPGA-generic
-- Standard : VHDL'93
-------------------------------------------------------------------------------
......@@ -37,6 +37,7 @@
-- Revisions :
-- Date Version Author Description
-- 2013-04-08 0.1 PeterJ Initial release based on "wr_gtx_phy_virtex6.vhd" and "wr_gtx_phy_family7_lp.vhd"
-- 2013-06-06 0.2 PeterJ use WB bus for LPDC regs
-------------------------------------------------------------------------------
library ieee;
......@@ -48,6 +49,8 @@ use unisim.vcomponents.all;
use work.gencores_pkg.all;
use work.disparity_gen_pkg.all;
use work.wishbone_pkg.all;
use work.lpdc_mdio_regs_pkg.all;
entity wr_gthe4_phy_family7_lp is
......@@ -65,6 +68,10 @@ entity wr_gthe4_phy_family7_lp is
-- Note: DMTD clock is also used as free running clock
clk_dmtd_i : in std_logic;
-- systemc clock for MDIO registers
clk_sys_i : in std_logic;
rst_sys_n_i : in std_logic;
-- TX path, synchronous to tx_out_clk_o (62.5 MHz):
tx_out_clk_o : out std_logic;
tx_locked_o : out std_logic;
......@@ -113,16 +120,16 @@ entity wr_gthe4_phy_family7_lp is
loopen_i : in std_logic;
tx_prbs_sel_i : in std_logic_vector(2 downto 0);
lpc_ctrl_i : in std_logic_vector(15 downto 0);
lpc_stat_o : out std_logic_vector(15 downto 0);
pad_txn_o : out std_logic;
pad_txp_o : out std_logic;
pad_rxn_i : in std_logic := '0';
pad_rxp_i : in std_logic := '0';
rdy_o : out std_logic
rdy_o : out std_logic;
mdio_slave_i : in t_wishbone_slave_in;
mdio_slave_o : out t_wishbone_slave_out
);
end wr_gthe4_phy_family7_lp;
......@@ -229,7 +236,7 @@ architecture rtl of wr_gthe4_phy_family7_lp is
signal tx_out_clk : std_logic;
signal tx_out_clk_sampled : std_logic;
signal rx_rec_clk : std_logic;
signal rx_rec_clk_sampled : std_logic;
signal rx_rec_clk_sampled : std_logic;
signal serdes_ready_a : std_logic;
signal serdes_ready_txclk : std_logic;
......@@ -253,42 +260,38 @@ architecture rtl of wr_gthe4_phy_family7_lp is
signal cur_disp : t_8b10b_disparity;
signal tx_data_8b10b : std_logic_vector(19 downto 0);
signal tx_sw_reset : std_logic;
signal tx_enable : std_logic;
signal tx_enable_txclk : std_logic;
signal rx_enable : std_logic;
signal rx_sw_reset : std_logic;
signal cpll_sw_reset : std_logic;
signal cd_reset : std_logic;
signal gth_tx_reset_a : std_logic;
signal gth_rx_reset_a : std_logic;
signal gth_loopback : std_logic_vector(2 downto 0) := "000";
signal comma_target_pos : std_logic_vector(4 downto 0);
signal comma_current_pos : std_logic_vector(4 downto 0);
signal rx_data_raw : std_logic_vector(19 downto 0);
signal rx_data_decode : std_logic_vector(19 downto 0);
signal rx_code_err : std_logic_vector(1 downto 0);
signal link_up : std_logic;
signal link_aligned : std_logic;
signal tx_rst_done : std_logic;
signal txusrpll_locked : std_logic;
signal rx_rst_done : std_logic;
signal comma_pos_valid : std_logic;
signal txresetdone : std_logic;
signal rxresetdone : std_logic;
signal lpdc_regs_out : t_lpdc_regs_master_out;
signal lpdc_regs_in : t_lpdc_regs_master_in;
signal drp_regs_in : t_wishbone_slave_out;
signal drp_regs_out : t_wishbone_slave_in;
begin
tx_sw_reset <= lpc_ctrl_i(0);
tx_enable <= lpc_ctrl_i(1); -- Not used. Tx enabled after tx_out_clk synced rst_n
rx_enable <= lpc_ctrl_i(2); -- Not used. Rx enables after serdes_ready_rxclk
rx_sw_reset <= lpc_ctrl_i(3);
cpll_sw_reset <= lpc_ctrl_i(4); -- Not used. cpll reset already incorporated in tx_sw_reset
cd_reset <= lpc_ctrl_i(5);
U_LPDC_regs : entity work.lpdc_mdio_regs
port map (
rst_n_i => rst_sys_n_i,
clk_i => clk_sys_i,
wb_i => mdio_slave_i,
wb_o => mdio_slave_o,
lpdc_regs_i => lpdc_regs_in,
lpdc_regs_o => lpdc_regs_out,
drp_regs_i => drp_regs_in,
drp_regs_o => drp_regs_out);
-- Near-end PMA loopback if loopen_i active
gth_loopback <= "010" when loopen_i = '1' else "000";
......@@ -298,7 +301,7 @@ begin
(
clk_i => clk_dmtd_i,
rst_n_i => '1',
data_i => tx_sw_reset,
data_i => lpdc_regs_out.CTRL_tx_sw_reset,
synced_o => gth_tx_reset_a
);
......@@ -307,7 +310,7 @@ begin
(
clk_i => tx_out_clk,
rst_n_i => '1',
data_i => tx_enable,
data_i => lpdc_regs_out.CTRL_tx_enable,
synced_o => tx_enable_txclk
);
......@@ -316,7 +319,7 @@ begin
(
clk_i => clk_dmtd_i,
rst_n_i => '1',
data_i => rx_sw_reset,
data_i => lpdc_regs_out.CTRL_rx_sw_reset,
synced_o => gth_rx_reset_a
);
......@@ -340,11 +343,9 @@ begin
clk_dmtd_i => clk_dmtd_i,
clk_sampled_o => tx_out_clk_sampled);
comma_target_pos <= lpc_ctrl_i(13 downto 13 - 4);
process(rx_rec_clk_sampled, tx_out_clk_sampled, lpc_ctrl_i)
process(rx_rec_clk_sampled, tx_out_clk_sampled, lpdc_regs_out)
begin
case lpc_ctrl_i(15 downto 14) is
case lpdc_regs_out.CTRL_dmtd_clk_sel is
when "00" =>
clk_sampled_o <= rx_rec_clk_sampled;
when "01" =>
......@@ -354,8 +355,6 @@ begin
end case;
end process;
tx_enc_err_o <= '0';
U_SyncReset : gc_sync_ffs
port map
(
......@@ -512,21 +511,21 @@ begin
rst_n_i => '1',
data_i => serdes_ready_a,
synced_o => serdes_ready_txclk);
U_Comma_Detect : gtx_comma_detect_lp
generic map(
g_id => 0
)
port map (
clk_rx_i => rx_rec_clk,
rst_i => cd_reset,
rst_i => lpdc_regs_out.CTRL_aux_reset,
rx_data_raw_i => rx_data_raw,
rx_data_raw_o => rx_data_decode,
comma_target_pos_i => comma_target_pos,
comma_current_pos_o => comma_current_pos,
comma_pos_valid_o => comma_pos_valid,
link_up_o => link_up,
aligned_o => link_aligned);
comma_target_pos_i => lpdc_regs_out.CTRL_comma_target_pos(4 downto 0),
comma_current_pos_o => lpdc_regs_in.STAT_comma_current_pos(4 downto 0),
comma_pos_valid_o => lpdc_regs_in.STAT_comma_pos_valid,
link_up_o => lpdc_regs_in.STAT_link_up,
aligned_o => lpdc_regs_in.STAT_link_aligned);
U_Sync_RxReset : gc_sync_ffs
port map (
......@@ -555,19 +554,10 @@ begin
rdisp_err_o => open,
out_8b_o => rx_data_int(7 downto 0));
lpc_stat_o(0) <= '1'; -- Not used. Signal cpll_locked
lpc_stat_o(1) <= link_up;
lpc_stat_o(2) <= link_aligned;
lpc_stat_o(3) <= tx_rst_done;
lpc_stat_o(4) <= '1'; -- Not used. Signal txusrpll_locked
lpc_stat_o(5) <= rx_rst_done;
lpc_stat_o(13 downto 9) <= comma_current_pos;
lpc_stat_o(14) <= comma_pos_valid;
-- Debug not used:
lpc_stat_o(6) <= '0';
lpc_stat_o(15) <= '0';
lpdc_regs_in.STAT_pll_locked <= '1'; -- Not used. Signal pll_locked
lpdc_regs_in.STAT_txusrpll_locked <= '1'; -- Not used. Signal pll_locked
lpdc_regs_in.STAT_tx_rst_done <= tx_rst_done;
lpdc_regs_in.STAT_rx_rst_done <= rx_rst_done;
p_gen_rx_outputs : process(rx_rec_clk, rst_rxclk_n)
begin
......
platform/xilinx/wr_xilinx_pkg.vhd
View file @ 816c0554
......@@ -35,6 +35,7 @@ use ieee.std_logic_1164.all;
library work;
use work.endpoint_pkg.all;
use work.wishbone_pkg.all;
package wr_xilinx_pkg is
......@@ -335,6 +336,8 @@ package wr_xilinx_pkg is
port (
clk_gth_i : in std_logic;
clk_dmtd_i : in std_logic;
clk_sys_i : in std_logic;
rst_sys_n_i : in std_logic;
tx_out_clk_o : out std_logic;
tx_locked_o : out std_logic;
tx_data_i : in std_logic_vector(15 downto 0);
......@@ -350,13 +353,13 @@ package wr_xilinx_pkg is
rst_i : in std_logic;
loopen_i : in std_logic;
tx_prbs_sel_i : in std_logic_vector(2 downto 0);
lpc_ctrl_i : in std_logic_vector(15 downto 0) := x"0000";
lpc_stat_o : out std_logic_vector(15 downto 0);
pad_txn_o : out std_logic;
pad_txp_o : out std_logic;
pad_rxn_i : in std_logic := '0';
pad_rxp_i : in std_logic := '0';
rdy_o : out std_logic
rdy_o : out std_logic;
mdio_slave_i : in t_wishbone_slave_in;
mdio_slave_o : out t_wishbone_slave_out
);
end component;
......
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