architecture SCHEMATIC of CONFIG_SPACE_HEADER is
- constant CONF_DEVICE_ID :std_logic_vector(31 downto 16) := X"AFFE";
- --other comm. device
- constant CONF_CLASS_CODE :std_logic_vector (31 downto 8) := X"078000";
-
- signal CONF_MAX_LAT :std_logic_vector (31 downto 24);
- signal CONF_MIN_GNT :std_logic_vector (23 downto 16);
- signal CONF_INT_PIN :std_logic_vector (15 downto 8);
- signal CONF_INT_LINE :std_logic_vector ( 7 downto 0);
-
- signal CONF_BAS_ADDR_REG :std_logic_vector(31 downto 0);
-
- signal CONF_STATUS :std_logic_vector(31 downto 16);
- signal CONF_COMMAND :std_logic_vector(15 downto 0);
-
- -- PCI Configuration Space Header
- --
- -- \ Bit
- -- \
- --Address |31 24|23 16|15 8|7 0|
- -----------------------------------------------------------------
- --00 |Device ID |Vendor ID |
- --04 |Status |Command |
- --08 |Class Code |Revision ID |
- --0C |BIST |Header Type |Latency T. |Cache L.S. |
- --10-24 |Base Address Register |
- --28 |Cardbus CIS Pointer |
- --2C |Subsystem ID |Subsystem Vendor ID |
- --30 |Expansion ROM Base Address |
- --34 |Reserved |
- --38 |Reserved |
- --3C |Max_Lat |Min_Gnt |Int_Pin |Int_Line |
- --40-FF | |
- -----------------------------------------------------------------
-
-
- --PCI Bus Commands
- --C/BE[3..0] Command Type
- --------------------------------------
- -- 0000 Interrupt Acknowledge
- -- 0001 Special Cycle
- -- 0010 I/O Read
- -- 0011 I/O Write
- -- 0100 Reserved
- -- 0101 Reserved
- -- 0110 Memory Read
- -- 0111 Memory Write
- --
- -- 1000 Reserved
- -- 1001 Reserved
- -- 1010 Configuration Read
- -- 1011 Configuration Write
- -- 1100 Memory Read Multiple
- -- 1101 Dual Address Cycle
- -- 1110 Memory Read Line
- -- 1111 Memory Write and Invalidate
-
-
- --PCI Byte Enable
- --C/BE[3..0] gueltige Datenbits
- -------------------------------
- -- 0000 AD 31..0
- -- 1000 AD 23..0
- -- 1100 AD 15..0
- -- 1110 AD 7..0
-
- constant CMD_INT_ACK :std_logic_vector(3 downto 0) := "0000";
- constant CMD_SP_CYC :std_logic_vector(3 downto 0) := "0001";
- constant CMD_IO_READ :std_logic_vector(3 downto 0) := "0010";
- constant CMD_IO_WRITE :std_logic_vector(3 downto 0) := "0011";
- constant CMD_RES_4 :std_logic_vector(3 downto 0) := "0100";
- constant CMD_RES_5 :std_logic_vector(3 downto 0) := "0101";
- constant CMD_MEM_READ :std_logic_vector(3 downto 0) := "0110";
- constant CMD_MEM_WRITE :std_logic_vector(3 downto 0) := "0111";
- constant CMD_RES_8 :std_logic_vector(3 downto 0) := "1000";
- constant CMD_RES_9 :std_logic_vector(3 downto 0) := "1001";
- constant CMD_CONF_READ :std_logic_vector(3 downto 0) := "1010";
- constant CMD_CONF_WRITE :std_logic_vector(3 downto 0) := "1011";
- constant CMD_MEM_READ_M :std_logic_vector(3 downto 0) := "1100";
- constant CMD_DU_ADR_CYC :std_logic_vector(3 downto 0) := "1101";
- constant CMD_MEN_READ_L :std_logic_vector(3 downto 0) := "1110";
- constant CMD_MEM_WRITE_I :std_logic_vector(3 downto 0) := "1111";
-
- signal CONFIG_ADDR :std_logic_vector(7 downto 0);
- signal CONFIG_WRITE :std_logic_vector(3 downto 0);
-
SIGNAL gnd : std_logic := '0';
SIGNAL vcc : std_logic := '1';
signal CONF_WR_10H : std_logic;
signal CONF_WR_3CH : std_logic;
signal CONF_READ_SEL : std_logic_vector (2 downto 0);
+ signal CONF_DATA_10H_DUMMY : std_logic_vector (31 downto 0);
+ signal CONF_DATA_04H_DUMMY : std_logic_vector (31 downto 0);
signal CONF_DATA_3CH : std_logic_vector (31 downto 0);
signal CONF_DATA_08H : std_logic_vector (31 downto 0);
signal CONF_DATA_00H : std_logic_vector (31 downto 0);
-begin
- CONF_DATA_00H <= CONF_DEVICE_ID & VENDOR_ID;
- CONF_DATA_08H <= CONF_CLASS_CODE & REVISION_ID;
- CONF_DATA_04H <= CONF_STATUS & CONF_COMMAND;
-
- CONF_MAX_LAT <= X"00";
- CONF_MIN_GNT <= X"00";
- -- CONF_INT_PIN <= X"00"; -- Interrupt -
- CONF_INT_PIN <= X"01"; -- Interrupt A
- -- CONF_INT_PIN <= X"02"; -- Interrupt B
- -- CONF_INT_PIN <= X"03"; -- Interrupt C
- -- CONF_INT_PIN <= X"04"; -- Interrupt D
- -- CONF_INT_PIN <= X"05 - FF0"; -- Reserviert
- CONF_DATA_3CH <= CONF_MAX_LAT & CONF_MIN_GNT & CONF_INT_PIN & CONF_INT_LINE;
-
- CONF_BAS_ADDR_REG(1 downto 0) <= "01";-- Base Address Register for "I/O"
- CONF_BAS_ADDR_REG(3 downto 2) <= "00";-- IO Bereich = 16 BYTE
- CONF_DATA_10H <= CONF_BAS_ADDR_REG;
-
- process (PCI_CLOCK,PCI_RSTn)
- begin
- if PCI_RSTn = '0' then
- CONF_INT_LINE <= (others => '0');
-
- elsif (rising_edge(PCI_CLOCK)) then
- if CONF_WR_3CH = '1'and CBE_REGn(0) = '0' then
- CONF_INT_LINE(7 downto 0) <= AD_REG(7 downto 0);
- end if;
- end if;
- end process;
-
- process (PCI_CLOCK,PCI_RSTn)
- begin
-
- -- if PCI_RSTn = '0' then CONF_BAS_ADDR_REG(31 downto 2) <= (others =>'0');
- if PCI_RSTn = '0' then
- CONF_BAS_ADDR_REG(31 downto 4) <= (others =>'0');
-
- elsif (rising_edge(PCI_CLOCK)) then
-
- if CONF_WR_10H = '1'and CBE_REGn(3) = '0' then
- CONF_BAS_ADDR_REG(31 downto 24) <= AD_REG(31 downto 24);
- else
- CONF_BAS_ADDR_REG(31 downto 24) <= CONF_BAS_ADDR_REG(31 downto 24);
- end if;
-
- if CONF_WR_10H = '1'and CBE_REGn(2) = '0' then
- CONF_BAS_ADDR_REG(23 downto 16) <= AD_REG(23 downto 16);
- else
- CONF_BAS_ADDR_REG(23 downto 16) <= CONF_BAS_ADDR_REG(23 downto 16);
- end if;
-
- if CONF_WR_10H = '1'and CBE_REGn(1) = '0' then
- CONF_BAS_ADDR_REG(15 downto 8) <= AD_REG(15 downto 8);
- else
- CONF_BAS_ADDR_REG(15 downto 8) <= CONF_BAS_ADDR_REG(15 downto 8);
- end if;
-
- -- if CONF_WR_10H = '1'and CBE_REGn(0) = '0' then
- -- CONF_BAS_ADDR_REG( 7 downto 2) <= AD_REG( 7 downto 2);
- -- else
- -- CONF_BAS_ADDR_REG( 7 downto 2) <= CONF_BAS_ADDR_REG( 7 downto 2);
- -- end if;
-
- if CONF_WR_10H = '1'and CBE_REGn(0) = '0' then
- CONF_BAS_ADDR_REG( 7 downto 4) <= AD_REG( 7 downto 4);
- else
- CONF_BAS_ADDR_REG( 7 downto 4) <= CONF_BAS_ADDR_REG( 7 downto 4);
- end if;
- end if;
- end process;
-
- --*******************************************************************
- --************* PCI Configuration Space Header "STATUS" *************
- --*******************************************************************
-
- CONF_STATUS(20 downto 16) <= "00000";-- Reserved
- CONF_STATUS(21 ) <= '0';-- MAS/TAR: "R_O" :'0'= 33MHz / '1'= 66MHz
- CONF_STATUS(22 ) <= '0';-- MAS/TAR: "R_O"
- CONF_STATUS(23 ) <= '0';-- ???/???: "R_O" : fast back-to-back
- CONF_STATUS(24 ) <= '0';-- Master :
- --CONF_STATUS(26 downto 25) <= "00";-- Mas/Tar: "R_O" : timing fast for "DEVSEL"
- CONF_STATUS(26 downto 25) <= "01";-- Mas/Tar: "R_O" : timing medium for "DEVSEL"
- --CONF_STATUS(26 downto 25) <= "10";-- Mas/Tar: "R_O" : timing slow for "DEVSEL"
- --CONF_STATUS(26 downto 25) <= "11";-- Mas/Tar: "R_O" : reserved
- CONF_STATUS(27 ) <= '0';-- Target : "R_W" : Taget-Abort
- CONF_STATUS(28 ) <= '0';-- Master : "R_W" : Taget-Abort
- CONF_STATUS(29 ) <= '0';-- Master : "R_W" : Master-Abort
- --CONF_STATUS(30 ) <= SERR;-- Mas/Tar: "R_W" : SERR
- --CONF_STATUS(31 ) <= PERR;-- Mas/Tar: "R_W" : PERR
-
- process (PCI_CLOCK,PCI_RSTn)
- begin
- if PCI_RSTn = '0' then
- CONF_STATUS(30) <= '0';
- CONF_STATUS(31) <= '0';
+ component CONFIG_MUX_0
+ Port ( CONF_DATA_00H : In std_logic_vector (31 downto 0);
+ CONF_DATA_04H : In std_logic_vector (31 downto 0);
+ CONF_DATA_08H : In std_logic_vector (31 downto 0);
+ CONF_DATA_10H : In std_logic_vector (31 downto 0);
+ CONF_DATA_3CH : In std_logic_vector (31 downto 0);
+ READ_SEL : In std_logic_vector (2 downto 0);
+ CONF_DATA : Out std_logic_vector (31 downto 0) );
+ end component;
+
+ component CONFIG_RD_0
+ Port ( ADDR_REG : In std_logic_vector (31 downto 0);
+ CF_RD_COM : In std_logic;
+ READ_SEL : Out std_logic_vector (2 downto 0) );
+ end component;
+
+ component CONFIG_WR_0
+ Port ( ADDR_REG : In std_logic_vector (31 downto 0);
+ CF_WR_COM : In std_logic;
+ IRDY_REGn : In std_logic;
+ TRDYn : In std_logic;
+ CONF_WR_04H : Out std_logic;
+ CONF_WR_10H : Out std_logic;
+ CONF_WR_3CH : Out std_logic );
+ end component;
+
+ component CONFIG_3CH
+ Port ( AD_REG : In std_logic_vector (31 downto 0);
+ CBE_REGn : In std_logic_vector (3 downto 0);
+ CONF_WR_3CH : In std_logic;
+ PCI_CLOCK : In std_logic;
+ PCI_RSTn : In std_logic;
+ CONF_DATA_3CH : Out std_logic_vector (31 downto 0) );
+ end component;
+
+ component CONFIG_10H
+ Port ( AD_REG : In std_logic_vector (31 downto 0);
+ CBE_REGn : In std_logic_vector (3 downto 0);
+ CONF_WR_10H : In std_logic;
+ PCI_CLOCK : In std_logic;
+ PCI_RSTn : In std_logic;
+ CONF_DATA_10H : Out std_logic_vector (31 downto 0) );
+ end component;
+
+ component CONFIG_08H
+ Port ( REVISION_ID : In std_logic_vector (7 downto 0);
+ CONF_DATA_08H : Out std_logic_vector (31 downto 0) );
+ end component;
+
+ component CONFIG_00H
+ Port ( VENDOR_ID : In std_logic_vector (15 downto 0);
+ CONF_DATA_00H : Out std_logic_vector (31 downto 0) );
+ end component;
+
+ component CONFIG_04H
+ Port ( AD_REG : In std_logic_vector (31 downto 0);
+ CBE_REGn : In std_logic_vector (3 downto 0);
+ CONF_WR_04H : In std_logic;
+ PCI_CLOCK : In std_logic;
+ PCI_RSTn : In std_logic;
+ PERR : In std_logic;
+ SERR : In std_logic;
+ CONF_DATA_04H : Out std_logic_vector (31 downto 0) );
+ end component;
- elsif (rising_edge(PCI_CLOCK)) then
- if CONF_WR_04H = '1' and CBE_REGn(3) = '0' then
- CONF_STATUS(30) <= not (AD_REG(30) and CONF_STATUS(30));
- CONF_STATUS(31) <= not (AD_REG(31) and CONF_STATUS(31));
-
- else
- CONF_STATUS(30) <= SERR or CONF_STATUS(30);
- CONF_STATUS(31) <= PERR or CONF_STATUS(31);
-
- end if;
- end if;
- end process;
-
- --*******************************************************************
- --*********** PCI Configuration Space Header "COMMAND" **************
- --*******************************************************************
-
- -- CONF_COMMAND( 0) <= '0';-- I/O Space accesses ???
- -- CONF_COMMAND( 1) <= '0';-- Mem Space accesses ???
- -- CONF_COMMAND( 2) <= '0';-- abillity to act as a master on the PCI bus
- -- CONF_COMMAND( 3) <= '0';-- Special Cycle ???
- -- CONF_COMMAND( 4) <= '0';-- Master ???
- -- CONF_COMMAND( 5) <= '0';-- VGA ???
- -- CONF_COMMAND( 6) <= '0';-- Party checking enable/disable
- CONF_COMMAND( 7) <= '0';-- address/data stepping ???
- -- CONF_COMMAND( 8) <= '0';-- enable/disable "PCI_SERRn"
- -- CONF_COMMAND( 9) <= '0';-- fast back-to-back
- -- CONF_COMMAND(10) <= '0';-- Reserved
- -- CONF_COMMAND(11) <= '0';-- Reserved
- -- CONF_COMMAND(12) <= '0';-- Reserved
- -- CONF_COMMAND(13) <= '0';-- Reserved
- -- CONF_COMMAND(14) <= '0';-- Reserved
- -- CONF_COMMAND(15) <= '0';-- Reserved
-
- process (PCI_CLOCK,PCI_RSTn)
- begin
- if PCI_RSTn = '0' then
- CONF_COMMAND(15 downto 8) <= (others =>'0');
- CONF_COMMAND( 6 downto 0) <= (others =>'0');
-
- elsif (rising_edge(PCI_CLOCK)) then
-
- if CONF_WR_04H = '1'and CBE_REGn(1) = '0' then
- CONF_COMMAND(15 downto 8) <= AD_REG(15 downto 8);
- else
- CONF_COMMAND(15 downto 8) <= CONF_COMMAND(15 downto 8);
- end if;
-
- if CONF_WR_04H = '1'and CBE_REGn(0) = '0' then
- CONF_COMMAND( 6 downto 0) <= AD_REG( 6 downto 0);
- else
- CONF_COMMAND( 6 downto 0) <= CONF_COMMAND( 6 downto 0);
- end if;
- end if;
- end process;
-
-
- --*******************************************************************
- --******************* PCI Write Configuration Address ***************
- --*******************************************************************
-
- CONFIG_ADDR(7 downto 0) <= ADDR_REG(7 downto 0);
-
-
- process (CF_WR_COM,IRDY_REGn,TRDYn,CONFIG_ADDR)
- begin
-
- if CF_WR_COM = '1' and IRDY_REGn = '0' and TRDYn = '0' then
-
- if CONFIG_ADDR = X"04" then
- CONFIG_WRITE <= "0001";
-
- elsif CONFIG_ADDR = X"10" then
- CONFIG_WRITE <= "0010";
-
- elsif CONFIG_ADDR = X"3C" then
- CONFIG_WRITE <= "0100";
-
- -- elsif CONFIG_ADDR = X"40" then
- -- CONFIG_WRITE <= "1000";
- else
- CONFIG_WRITE <= "0000";
- end if;
- else
- CONFIG_WRITE <= "0000";
- end if;
- end process;
-
- CONF_WR_04H <= CONFIG_WRITE(0);
- CONF_WR_10H <= CONFIG_WRITE(1);
- CONF_WR_3CH <= CONFIG_WRITE(2);
- --CONF_WR_40H <= CONFIG_WRITE(3);
-
- process (CF_RD_COM, CONFIG_ADDR)
- begin
-
- if CF_RD_COM = '1' then
- if CONFIG_ADDR = X"00" then
- CONF_READ_SEL <= "000";
-
- elsif CONFIG_ADDR = X"04" then
- CONF_READ_SEL <= "001";
-
- elsif CONFIG_ADDR = X"08" then
- CONF_READ_SEL <= "010";
-
- elsif CONFIG_ADDR = X"10" then
- CONF_READ_SEL <= "011";
-
- elsif CONFIG_ADDR = X"3C" then
- CONF_READ_SEL <= "100";
-
- elsif CONFIG_ADDR = X"40" then
- CONF_READ_SEL <= "101";
+begin
- else
- CONF_READ_SEL <= "111";
- end if;
- else
- CONF_READ_SEL <= "111";
- end if;
- end process;
+ CONF_DATA_04H <= CONF_DATA_04H_DUMMY;
+ CONF_DATA_10H <= CONF_DATA_10H_DUMMY;
+
+ I10 : CONFIG_MUX_0
+ Port Map ( CONF_DATA_00H(31 downto 0)=>CONF_DATA_00H(31 downto 0),
+ CONF_DATA_04H(31 downto 0)=>CONF_DATA_04H_DUMMY(31 downto 0),
+ CONF_DATA_08H(31 downto 0)=>CONF_DATA_08H(31 downto 0),
+ CONF_DATA_10H(31 downto 0)=>CONF_DATA_10H_DUMMY(31 downto 0),
+ CONF_DATA_3CH(31 downto 0)=>CONF_DATA_3CH(31 downto 0),
+ READ_SEL(2 downto 0)=>CONF_READ_SEL(2 downto 0),
+ CONF_DATA(31 downto 0)=>CONF_DATA(31 downto 0) );
+ I9 : CONFIG_RD_0
+ Port Map ( ADDR_REG(31 downto 0)=>ADDR_REG(31 downto 0),
+ CF_RD_COM=>CF_RD_COM,
+ READ_SEL(2 downto 0)=>CONF_READ_SEL(2 downto 0) );
+ I8 : CONFIG_WR_0
+ Port Map ( ADDR_REG(31 downto 0)=>ADDR_REG(31 downto 0),
+ CF_WR_COM=>CF_WR_COM, IRDY_REGn=>IRDY_REGn,
+ TRDYn=>TRDYn, CONF_WR_04H=>CONF_WR_04H,
+ CONF_WR_10H=>CONF_WR_10H, CONF_WR_3CH=>CONF_WR_3CH );
+ I6 : CONFIG_3CH
+ Port Map ( AD_REG(31 downto 0)=>AD_REG(31 downto 0),
+ CBE_REGn(3 downto 0)=>CBE_REGn(3 downto 0),
+ CONF_WR_3CH=>CONF_WR_3CH, PCI_CLOCK=>PCI_CLOCK,
+ PCI_RSTn=>PCI_RSTn,
+ CONF_DATA_3CH(31 downto 0)=>CONF_DATA_3CH(31 downto 0) );
+ I5 : CONFIG_10H
+ Port Map ( AD_REG(31 downto 0)=>AD_REG(31 downto 0),
+ CBE_REGn(3 downto 0)=>CBE_REGn(3 downto 0),
+ CONF_WR_10H=>CONF_WR_10H, PCI_CLOCK=>PCI_CLOCK,
+ PCI_RSTn=>PCI_RSTn,
+ CONF_DATA_10H(31 downto 0)=>CONF_DATA_10H_DUMMY(31 downto 0) );
+ I4 : CONFIG_08H
+ Port Map ( REVISION_ID(7 downto 0)=>REVISION_ID(7 downto 0),
+ CONF_DATA_08H(31 downto 0)=>CONF_DATA_08H(31 downto 0) );
+ I3 : CONFIG_00H
+ Port Map ( VENDOR_ID(15 downto 0)=>VENDOR_ID(15 downto 0),
+ CONF_DATA_00H(31 downto 0)=>CONF_DATA_00H(31 downto 0) );
+ I2 : CONFIG_04H
+ Port Map ( AD_REG(31 downto 0)=>AD_REG(31 downto 0),
+ CBE_REGn(3 downto 0)=>CBE_REGn(3 downto 0),
+ CONF_WR_04H=>CONF_WR_04H, PCI_CLOCK=>PCI_CLOCK,
+ PCI_RSTn=>PCI_RSTn, PERR=>PERR, SERR=>SERR,
+ CONF_DATA_04H(31 downto 0)=>CONF_DATA_04H_DUMMY(31 downto 0) );
end SCHEMATIC;
projects / raggedstone / blobdiff