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Commit 6fdd001b authored by Andrey Filippov's avatar Andrey Filippov
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Created Python script (with AHCI documentation) that generates BRAM... 

Created Python script (with AHCI documentation) that generates BRAM initializaion for AHCI memory registers
parent 8db8ea19
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Showing with 650 additions and 72 deletions
helpers/create_ahci_registers.py
View file @ 6fdd001b
......@@ -39,6 +39,7 @@ fN = "fieldName"
fL = "fieldOffsetLow" # if any of fL, fH is absent, it is assumed to be equal to the other, if both - to the full range
fH = "fieldOffsetHigh"
fS = "fieldSize"
fE = "fieldEnd"
fD = "fieldDescription"
fC = "fieldContent"
fT = "fieldType"
......@@ -54,12 +55,26 @@ SSID = 0x0001
IPIN = 0x01 # TODO: Put a real number for "Interrupt pin"
ILINE = 0x00 # Interrupt line - software is supposed to fill it - maybe here we need to put some predefined value?
HBA_OFFS = 0x0
CLB_OFFS = 0x800 # In the second half of the register space (0x800..0xbff - 1KB)
FB_OFFS = 0xc00 # Needs 0x100 bytes
#HBA_PORT0 = 0x100 Not needed, always HBA_OFFS + 0x100
PCIHEAD = 0x180
PMCAP = 0x1C0
ABAR = 0x80000000 + HBA_OFFS
P0CLB = 0x0 # Port 0 CLB address - define here?
P0FB = 0x0 # Port 0 received FIS address - define here?
AXI_BASEADDR = 0x80000000
reg_defaults_path= "../includes/ahci_defaults.vh"
reg_types_path= "../includes/ahci_types.vh"
ABAR = AXI_BASEADDR + HBA_OFFS
# Second half of the 4KB register memory does not have RO/RW/RWC/RW1 capability (just RW), but has a single-cycle write access
#Keeping CLB and received FIS reduces number of required DMA transfer types - just reading PRDs and Read/Write DMA data
P0CLB = AXI_BASEADDR + CLB_OFFS # Port 0 CLB address - keep in HBA internal memory
P0FB = AXI_BASEADDR + FB_OFFS # Port 0 received FIS address - keep in HBA internal memory
#reg_defaults = [0]*4096 # array of bytes, default value = 0
#bit_types = [0]*2048 # array of words, default value = 0
src=[{gN:"PCI_Header", gS: PCIHEAD, gE:PCIHEAD+0x3f, gD:" PCI header emulation with no PCI",gC:
[{rN:"ID", rS:0x0, rE:0x3, rD:"Identifiers", rC:
......@@ -114,7 +129,7 @@ src=[{gN:"PCI_Header", gS: PCIHEAD, gE:PCIHEAD+0x3f, gD:" PCI header emulation w
# 0x28.0x2b skipped
{rN:"SS", rS:0x2c, rE:0x2f, rD:"Sub System identifiers", rC:
[{fN:"SSID", fS:16, fE:31, fT:RO, fC:SSID, fD:"SubSystem ID"},
{fN:"SSVID", fS:0, fE:15, fT:RO, fC:SVID, fD:"SubSystem Vendor ID"}]},
{fN:"SSVID", fS:0, fE:15, fT:RO, fC:SSVID,fD:"SubSystem Vendor ID"}]},
{rN:"EROM", rS:0x30, rE:0x33, rD:"Extension ROM (optional)", rC:
[{fN:"RBA", fT:RO, fC:0, fD:"ROM Base Address"}]},
{rN:"CAP", rS:0x34, rD:"Capabilities Pointer", rC:
......@@ -124,9 +139,9 @@ src=[{gN:"PCI_Header", gS: PCIHEAD, gE:PCIHEAD+0x3f, gD:" PCI header emulation w
[{fN:"IPIN", fS: 8, fE:15, fT:RO, fC:IPIN, fD:"Interrupt pin"},
{fN:"ILINE", fS: 0, fE: 7, fT:RW, fC:ILINE,fD:"Interrupt Line"}]},
{rN:"MGNT", rS:0x3e, rD:"Minimal Grant (optional)", rC:
[{fN:"MGNT", fT:R0, fC:0, fD:"Minimal Grant"}]},
[{fN:"MGNT", fT:RO, fC:0, fD:"Minimal Grant"}]},
{rN:"MLAT", rS:0x3f, rD:"Maximal Latency (optional)", rC:
[{fN:"MLAT", fT:R0, fC:0, fD:"Maximal Latency"}]}
[{fN:"MLAT", fT:RO, fC:0, fD:"Maximal Latency"}]}
]}, # End of "PCI_Header" group
{gN:"PMCAP", gS: PMCAP, gE:PMCAP+0x7, gD:"Power Management Capability",gC:
[{rN:"PID", rS:0x0, rE:0x1, rD:"PCI Power Management Capability ID", rC:
......@@ -159,7 +174,7 @@ src=[{gN:"PCI_Header", gS: PCIHEAD, gE:PCIHEAD+0x3f, gD:" PCI header emulation w
{fN:"SALP", fS:26, fT:RO, fC:0, fD:"Supports Aggressive Link Power Management - no"},
{fN:"SAL", fS:25, fT:RO, fC:0, fD:"Supports Activity LED - no"},
{fN:"SCLO", fS:24, fT:RO, fC:0, fD:"Supports Command List Override - no (not capable of clearing BSY and DRQ bits, needs soft reset"},
{fN:"ISS", fS:20, fe:23, fT:RO, fC:2, fD:"Interface Maximal speed: 2 - Gen2, 3 - Gen3"},
{fN:"ISS", fS:20, fE:23, fT:RO, fC:2, fD:"Interface Maximal speed: 2 - Gen2, 3 - Gen3"},
{ fS:19, fT:RO, fC:0, fD:"Reserved"},
{fN:"SAM", fS:18, fT:RO, fC:1, fD:"AHCI only (0 - legacy too)"},
{fN:"SPM", fS:17, fT:RO, fC:0, fD:"Supports Port Multiplier - no"},
......@@ -167,14 +182,14 @@ src=[{gN:"PCI_Header", gS: PCIHEAD, gE:PCIHEAD+0x3f, gD:" PCI header emulation w
{fN:"PMD", fS:15, fT:RO, fC:0, fD:"PIO Multiple DRQ block - no"},
{fN:"SSC", fS:14, fT:RO, fC:0, fD:"Slumber State Capable - no"},
{fN:"PSC", fS:13, fT:RO, fC:0, fD:"Partial State Capable - no"},
{fN:"NSC", fS: 8, fe:12, fT:RO, fC:0, fD:"Number of Command Slots, 0-based (0 means 1?)"},
{fN:"NSC", fS: 8, fE:12, fT:RO, fC:0, fD:"Number of Command Slots, 0-based (0 means 1?)"},
{fN:"CCCS", fS: 7, fT:RO, fC:0, fD:"Command Completion Coalescing - no"},
{fN:"EMS", fS: 6, fT:RO, fC:0, fD:"Enclosure Management - no"},
{fN:"SXS", fS: 5, fT:RO, fC:1, fD:"External SATA connector - yes"},
{fN:"NP", fS: 0, fe: 4, fT:RO, fC:0, fD:"Number of Ports, 0-based (0 means 1?)"}]},
{fN:"NP", fS: 0, fE: 4, fT:RO, fC:0, fD:"Number of Ports, 0-based (0 means 1?)"}]},
{rN:"GHC", rS:0x4, rE:0x07, rD:"Global HBA Control", rC:
[{fN:"AE", fS:31, fT:RO, fC:1, fD:"AHCI enable (0 - legacy)"},
{ fS: 3, fe:30, fT:RO, fC:0, fD:"Reserved"},
{ fS: 3, fE:30, fT:RO, fC:0, fD:"Reserved"},
{fN:"MRSM", fS: 2, fT:RO, fC:0, fD:"MSI Revert to Single Message"},
{fN:"IE", fS: 1, fT:RW, fC:0, fD:"Interrupt Enable (all ports)"},
{fN:"HR", fS: 0, fT:RW1,fC:0, fD:"HBA reset (COMINIT, ...). Set by software, cleared by hardware, section 10.4.3"}]},
......@@ -195,7 +210,7 @@ src=[{gN:"PCI_Header", gS: PCIHEAD, gE:PCIHEAD+0x3f, gD:" PCI header emulation w
[{ fT:RO, fC:0, fD:"Not Implemented"}]},
{rN:"CAP2", rS:0x24, rE:0x27, rD:"HBA Capabilities Extended", rC:
[{ fs: 6, fE:31, fT:RO, fC:0, fD:"Reserved"},
[{ fS: 6, fE:31, fT:RO, fC:0, fD:"Reserved"},
{fN:"DESO", fS: 5, fT:RO, fC:0, fD:"DevSleep Entrance from Slumber Only"},
{fN:"SADM", fS: 4, fT:RO, fC:0, fD:"Supports Aggressive Device Sleep Management"},
{fN:"SDS", fS: 3, fT:RO, fC:0, fD:"Supports Device Sleep"},
......@@ -209,12 +224,12 @@ src=[{gN:"PCI_Header", gS: PCIHEAD, gE:PCIHEAD+0x3f, gD:" PCI header emulation w
{gN:"HBA_PORT", gS: HBA_OFFS + 0x100, gE:HBA_OFFS + 0x17f, gD:"HBA Port registers",gC:
[{rN:"PxCLB", rS:0x0, rE:0x03, rD:"Port x Command List Base Address", rC:
[{fN:"CLB", fS:10, fE:31, fT:RW, fC:P0CLB>>10, fD:"Command List Base Address (1KB aligned)"},
{ fS: 0, fe: 9, fT:RO, fC:0, fD:"Reserved"}]},
{ fS: 0, fE: 9, fT:RO, fC:0, fD:"Reserved"}]},
{rN:"PxCLBU", rS:0x04, rE:0x07, rD:"Port x CLB address, upper 32 bits of 64", rC:
[{ fT:RO, fC:0, fD:"Not Implemented"}]},
{rN:"PxFB", rS:0x8, rE:0x0b, rD:"FIS Base Address", rC:
[{fN:"CLB", fS: 8, fE:31, fT:RW, fC:P0FB>> 8, fD:"Command List Base Address (1KB aligned)"},
{ fS: 0, fe: 7, fT:RO, fC:0, fD:"Reserved"}]},
{ fS: 0, fE: 7, fT:RO, fC:0, fD:"Reserved"}]},
{rN:"PxFBU", rS:0x0c, rE:0x0f, rD:"FIS address, upper 32 bits of 64", rC:
[{ fT:RO, fC:0, fD:"Not Implemented"}]},
{rN:"PxIS", rS:0x10, rE:0x13, rD:"Port x Interrupt Status", rC:
......@@ -237,26 +252,342 @@ src=[{gN:"PCI_Header", gS: PCIHEAD, gE:PCIHEAD+0x3f, gD:" PCI header emulation w
{fN:"DSS", fS: 2, fT:RWC,fC:0, fD:"DMA Setup FIS Interrupt - DMA Setup FIS received with 'I' bit set"},
{fN:"PSS", fS: 1, fT:RWC,fC:0, fD:"PIO Setup FIS Interrupt - PIO Setup FIS received with 'I' bit set"},
{fN:"DHRS", fS: 0, fT:RWC,fC:0, fD:"D2H Register FIS Interrupt - D2H Register FIS received with 'I' bit set"}]},
{rN:"PxIE", rS:0x14, rE:0x17, rD:"Port x Interrupt Enable", rC:
[{fN:"CPDE", fS:31, fT:RW, fC:0, fD:"Cold Port Detect Enable"},
{fN:"TFEE", fS:30, fT:RW, fC:0, fD:"Task File Error Enable"},
{fN:"HBFE", fS:29, fT:RW, fC:0, fD:"Host Bus (PCI) Fatal Error Enable"},
{fN:"HBDE", fS:28, fT:RW, fC:0, fD:"ECC Error R/W System Memory Enable"},
{fN:"IFE", fS:27, fT:RW, fC:0, fD:"Interface Fatal Error Enable (sect. 6.1.2)"},
{fN:"INFE", fS:26, fT:RW, fC:0, fD:"Interface Non-Fatal Error Enable (sect. 6.1.2)"},
{ fS:25, fT:RO, fC:0, fD:"Reserved"},
{fN:"OFE", fS:24, fT:RW, fC:0, fD:"Overflow Enable"},
{fN:"IPME", fS:23, fT:RW, fC:0, fD:"Incorrect Port Multiplier Enable"},
{fN:"PRCE", fS:22, fT:RO, fC:0, fD:"PhyRdy changed Enable"}, #Indirect clear
{ fS: 8, fE:21, fT:RO, fC:0, fD:"Reserved"},
{fN:"DMPE", fS: 7, fT:RO, fC:0, fD:"Device Mechanical Presence Interrupt Enable"}, #Indirect clear
{fN:"PCE", fS: 6, fT:RO, fC:0, fD:"Port Connect Change Interrupt Enable"}, #Indirect clear
{fN:"DPE", fS: 5, fT:RW, fC:0, fD:"Descriptor Processed Interrupt Enable"},
{fN:"UFE", fS: 4, fT:RO, fC:0, fD:"Unknown FIS"}, #Indirect clear
{fN:"SDBE", fS: 3, fT:RW, fC:0, fD:"Device Bits Interrupt Enable"},
{fN:"DSE", fS: 2, fT:RW, fC:0, fD:"DMA Setup FIS Interrupt Enable"},
{fN:"PSE", fS: 1, fT:RW, fC:0, fD:"PIO Setup FIS Interrupt Enable"},
{fN:"DHRE", fS: 0, fT:RW, fC:0, fD:"D2H Register FIS Interrupt Enable"}]},
{rN:"PxCMD", rS:0x18, rE:0x1b, rD:"Port x Command and Status", rC:
[{fN:"ICC", fS:28, fE:31, fT:RW, fC:0, fD:"Interface Communication Control"},
# Only act if Link Layer in L_IDLE or L_NoCommPower states
# 0x8 - DevSleep
# 0x6 - Slumber
# 0x2 - Partial
# 0x1 - Active
# 0x0 - No-Op/Idle
# All other commands reserved
{fN:"ASP", fS:27, fT:RO, fC:0, fD:"Aggressive Slumber/Partial - not implemented"},
{fN:"ALPE", fS:26, fT:RO, fC:0, fD:"Aggressive Link Power Management Enable - not implemented"},
{fN:"DLAE", fS:25, fT:RW, fC:0, fD:"Drive LED on ATAPI enable"},
{fN:"ATAPI", fS:24, fT:RW, fC:0, fD:"Device is ATAPI (for activity LED)"},
{fN:"APSTE", fS:23, fT:RW, fC:0, fD:"Automatic Partial to Slumber Transitions Enabled"},
{fN:"FBSCP", fS:22, fT:RO, fC:0, fD:"FIS-Based Switching Capable Port - not implemented"},
{fN:"ESP", fS:21, fT:RO, fC:1, fD:"External SATA port"},
{fN:"CPD", fS:20, fT:RO, fC:0, fD:"Cold Presence Detection"},
{fN:"MPSP", fS:19, fT:RO, fC:0, fD:"Mechanical Presence Switch Attached to Port"},
{fN:"HPCP", fS:18, fT:RO, fC:1, fD:"Hot Plug Capable Port"},
{fN:"PMA", fS:17, fT:RW, fC:0, fD:"Port Multiplier Attached - not implemented (software should write this bit)"},
{fN:"CPS", fS:16, fT:RO, fC:0, fD:"Cold Presence State"},
{fN:"CR", fS:15, fT:RO, fC:0, fD:"Command List Running (section 5.3.2)"},
{fN:"FR", fS:14, fT:RO, fC:0, fD:"FIS Receive Running (section 10.3.2)"},
{fN:"MPSS", fS:13, fT:RO, fC:0, fD:"Mechanical Presence Switch State"},
{fN:"CCS", fS: 8, fE:12, fT:RO, fC:0, fD:"Current Command Slot (when PxCMD.ST 1-> ) should be reset to 0, when 0->1 - highest priority is 0"},
{ fS: 5, fE: 7, fT:RO, fC:0, fD:"Reserved"},
{fN:"FRE", fS: 4, fT:RW, fC:0, fD:"FIS Receive Enable (enable after FIS memory is set)"},
{fN:"CLO", fS: 3, fT:RW1,fC:0, fD:"Command List Override"},
{fN:"POD", fS: 2, fT:RO, fC:1, fD:"Power On Device (RW with Cold Presence Detection)"},
{fN:"SUD", fS: 1, fT:RO, fC:1, fD:"Spin-Up Device (RW with Staggered Spin-Up Support)"},
{fN:"ST", fS: 0, fT:RW, fC:0, fD:"Start (HBA may process commands). See section 10.3.1"}]},
# 0x1c..0x1f - Reserved
{rN:"PxTFD", rS:0x20, rE:0x23, rD:"Port x Task File Data (copy of error/status from device)", rC:
[{ fS:16, fE:31, fT:RO, fC:0, fD:"Reserved"},
{fN:"ERR", fS: 8, fE:15, fT:RO, fC:0, fD:"Latest Copy of Task File Error Register"},
{fN:"STS", fS: 0, fE: 7, fT:RO, fC:0, fD:"Latest Copy of Task File Status Register"},
# bit 7 - BSY
# bits 6..4 - command-specific
# bit 3 - DRQ
# bits 1..2 - command-specific
# bit 0 - ERR
]},
{rN:"PxSIG", rS:0x24, rE:0x27, rD:"Port x Signature (first D2H data after reset)", rC:
[{fN:"SIG", fS: 0, fE:31, fT:RO, fC:0xffffffff, fD:"Data in the first D2H Register FIS"},
# bits 24..31 - LBA High Register
# bits 16..23 - LBA Mid Register
# bits 8..15 - LBA Low Register
# bits 0.. 7 - Sector Count Register
]},
{rN:"PxSIG", rS:0x28, rE:0x2b, rD:"Port x SATA Status (SCR0:SStatus)", rC:
[{ fS:12, fE:31, fT:RO, fC:0, fD:"Reserved"},
{fN:"IPM", fS: 8, fE:11, fT:RO, fC:0, fD:"Interface Power Management"},
# 0 - Device not present or communication not established
# 1 - Interface in active state
# 2 - Partial power state
# 6 - Slumber
# 8 - DevSleep
{fN:"SPD", fS: 4, fE: 7, fT:RO, fC:0, fD:"Interface Speed"},
# 0 - Device not present or communication not established
# 1 - Gen 1 speed
# 2 - Gen 2 speed
# 3 - Gen 3 speed
{fN:"DET", fS: 0, fE: 3, fT:RO, fC:0, fD:"Device Detection (should be detected if COMINIT is received)"},
# 0 - no device detected and Phy communication not established
# 1 - device present and detected but Phy communication not established
# 3 - device present and detected and Phy communication established
# 4 - Phy in offline mode as a result of interface being disabled or
# or running in a BIST loopback mode
]},
{rN:"PxSCTL", rS:0x2c, rE:0x2f, rD:"Port x SATA Control (SCR2:SControl)", rC:
[{ fS:20, fE:31, fT:RO, fC:0, fD:"Reserved"},
{fN:"PMP", fS:16, fE:19, fT:RO, fC:0, fD:"Port Multiplier Port - not used by AHCI"},
{fN:"SPM", fS:12, fE:15, fT:RO, fC:0, fD:"Select Power Management - not used by AHCI"},
{fN:"IPM", fS: 8, fE:11, fT:RW, fC:0, fD:"Interface Power Management Transitions Allowed"},
# 0 - no interface restrictions
# 1 - Transitions to Partial are disabled
# 2 - Transitions to Slumber are disabled
# 4 - Transitions to DevSleep are disabled
# Other bit-ORed values are possible
{fN:"SPD", fS: 4, fE: 7, fT:RO, fC:0, fD:"Interface Highest Speed"},
# 0 - No Speed Limit
# 1 - Gen 1 speed only
# 2 - Gen 2 speed or less
# 3 - Gen 3 speed or less
{fN:"DET", fS: 0, fE: 3, fT:RO, fC:0, fD:"Device Detection Initialization"},
# 0 - no device detection/initialization requested
# 1 - Perform interface initialization (same as hard reset)
# 4 - Disable SATA and put PHY in offline mode
]},
{rN:"PxSERR", rS:0x30, rE:0x34, rD:"Port x SATA Error (SCR1:SError)", rC:
[{ fS:27, fE:31, fT:RO, fC:0, fD:"Reserved"},
{fN:"DIAD.X",fS:26, fT:RWC,fC:0, fD:"Exchanged (set on COMINIT), reflected in PxIS.PCS"},
{fN:"DIAD.F",fS:25, fT:RWC,fC:0, fD:"Unknown FIS"},
{fN:"DIAD.T",fS:24, fT:RWC,fC:0, fD:"Transport state transition error"},
{fN:"DIAD.S",fS:23, fT:RWC,fC:0, fD:"Link sequence error"},
{fN:"DIAD.H",fS:22, fT:RWC,fC:0, fD:"Handshake Error (i.e. Device got CRC error)"},
{fN:"DIAD.C",fS:21, fT:RWC,fC:0, fD:"CRC error in Link layer"},
{fN:"DIAD.D",fS:20, fT:RWC,fC:0, fD:"Disparity Error - not used by AHCI"},
{fN:"DIAD.B",fS:19, fT:RWC,fC:0, fD:"10B to 8B decode error"},
{fN:"DIAD.W",fS:18, fT:RWC,fC:0, fD:"COMMWAKE signal was detected"},
{fN:"DIAD.I",fS:17, fT:RWC,fC:0, fD:"PHY Internal Error"},
{fN:"DIAD.N",fS:16, fT:RWC,fC:0, fD:"PhyRdy changed. Reflected in PxIS.PRCS bit."},
{ fS:12, fE:15, fT:RO, fC:0, fD:"Reserved"},
{fN:"ERR.E", fS:11, fT:RWC,fC:0, fD:"Internal Error"},
{fN:"ERR.P", fS:10, fT:RWC,fC:0, fD:"Protocol Error - a violation of SATA protocol detected"},
{fN:"ERR.C", fS: 9, fT:RWC,fC:0, fD:"Persistent Communication or Data Integrity Error"},
{fN:"ERR.T", fS: 8, fT:RWC,fC:0, fD:"Transient Data Integrity Error (error not recovered by the interface)"},
{ fS: 2, fE: 7, fT:RO, fC:0, fD:"Reserved"},
{fN:"ERR.M", fS: 1, fT:RWC,fC:0, fD:"Communication between the device and host was lost but re-established"},
{fN:"ERR.I", fS: 1, fT:RWC,fC:0, fD:"Recovered Data integrity Error"}
]},
{rN:"PxSACT", rS:0x34, rE:0x37, rD:"Port x SATA Active (SCR3:SActive), only set when PxCMD.ST==1", rC:
[{fN:"DS", fT:RW1,fC:0, fD:"Device Status: bit per Port, for TAG in native queued command"}
]},
{rN:"PxCI", rS:0x38, rE:0x3b, rD:"Port x Command Issue", rC:
[{fN:"CI", fT:RW1,fC:0, fD:"Command Issued: bit per Port, only set when PxCMD.ST==1, also cleared by PxCMD.ST: 1->0 by soft"}
]},
{rN:"PxSNTF", rS:0x3c, rE:0x3f, rD:"Port x SATA Notification (SCR4:SNotification)", rC:
[{ fS:16, fE:31, fT:RO, fC:0, fD:"Reserved"},
{fN:"PMN", fS: 0, fE:15, fT:RWC,fC:0, fD:"PM Notify (bit per PM port)"}
]},
{rN:"PxFBS", rS:0x40, rE:0x43, rD:"Port x FIS-based switching control)", rC:
[{ fS:20, fE:31, fT:RO, fC:0, fD:"Reserved"},
{fN:"DWE", fS:16, fE:19, fT:RO, fC:0, fD:"Device with Error"},
{fN:"ADO", fS:12, fE:15, fT:RO, fC:0, fD:"Active Device Optimization"},
{fN:"DEV", fS: 8, fE:11, fT:RW, fC:0, fD:"Device To Issue"},
{ fS: 3, fE: 7, fT:RO, fC:0, fD:"Reserved"},
{fN:"SDE", fS: 2, fT:RO, fC:0, fD:"Single Device Error"},
{fN:"DEC", fS: 1, fT:RW1,fC:0, fD:"Device Error Clear"},
{fN:"EN", fS: 0, fT:RW, fC:0, fD:"Enable"}
]},
{rN:"PxDEVSLP",rS:0x44, rE:0x47, rD:"Port x Device Sleep", rC:
[{ fS:29, fE:31, fT:RO, fC:0, fD:"Reserved"},
{fN:"DM", fS:25, fE:28, fT:RO, fC:0, fD:"DITO Multiplier"},
{fN:"DITO", fS:15, fE:24, fT:RW, fC:0, fD:"Device Sleep Idle Timeout (section 8.5.1.1.1)"},
{fN:"MDAT", fS:10, fE:14, fT:RW, fC:0, fD:"Minimum Device Sleep Assertion Time"},
{fN:"DETO", fS: 2, fE: 9, fT:RW, fC:0, fD:"Device Sleep Exit Timeout"},
{fN:"DSP", fS: 1, fT:RO, fC:0, fD:"Device Sleep Present"},
{fN:"ADSE", fS: 1, fT:RO, fC:0, fD:"Aggressive Device Sleep Enable"}
]},
# 0x48..0x6f - reserved
{rN:"PxVS", rS:0x70, rE:0x7f, rD:"Port x Vendor Specific", rC:
[{ fT:RW, fC:0, fD:"Vendor-specific data - 128 bits"}
]},
]},
]
"""
{rN:"??", rS:0x06, rE:0x7, rD:"????", rC:
[]},
VID = 0xfffe # What to use for non-PCI "vendorID"?
DID = 0x0001
SSVID = 0xfffe
SSID = 0x0001
IPIN = 0x01 # TODO: Put a real number for "Interrupt pin"
ILINE = 0x00 # Interrupt line - software is supposed to fill it - maybe here we need to put some predefined value?
HBA_OFFS = 0x0
#HBA_PORT0 = 0x100 Not needed, always HBA_OFFS + 0x100
PCIHEAD = 0x180
PMCAP = 0x1C0
ABAR = 0x80000000 + HBA_OFFS
P0CLB = 0x0 # Port 0 CLB address - define here?
"""
\ No newline at end of file
reg_defaults = [0]*4096 # array of bytes, default value = 0
bit_types = [0]*2048 # array of words, default value = 0
for group in src:
groupName = group[gN]
groupStart = group[gS]
groupEnd = group[gE]
if groupStart > groupEnd:
groupEnd, groupStart = (groupStart, groupEnd)
try:
groupDescription= group[gD]
except:
groupDescription= ""
print ("Group %s (%s) 0x%x..0x%x:"%(groupName, groupDescription, groupStart, groupEnd))
for dataRange in group[gC]:
try:
rangeName = dataRange[rN]
except:
rangeName = ""
if (not rS in dataRange) and (not rE in dataRange):
rangeStart = 0
rangeEnd = groupEnd - groupStart -1
else:
try:
rangeStart = dataRange[rS]
except:
rangeStart = dataRange[rE]
try:
rangeEnd = dataRange[rE]
except:
rangeEnd = dataRange[rS]
if rangeStart > rangeEnd:
rangeEnd, rangeStart = (rangeStart, rangeEnd)
try:
rangeDescription= dataRange[rD]
except:
rangeDescription= ""
print (" Range %s (%s) 0x%x..0x%x:"%(rangeName, rangeDescription, rangeStart, rangeEnd))
for dataField in dataRange[rC]:
try:
fieldName = dataField[fN]
except:
fieldName = ""
if (not fS in dataField) and (not fE in dataField):
fieldStart = 0
fieldEnd = (rangeEnd - rangeStart) * 8 +7 # last bit in bytes
else:
try:
fieldStart = dataField[fS]
except:
fieldStart = dataField[fE]
try:
fieldEnd = dataField[fE]
except:
fieldEnd = dataField[fS]
if fieldStart > fieldEnd:
fieldEnd, fieldStart = (fieldStart, fieldEnd)
try:
fieldDescription= dataField[fD]
except:
fieldDescription= ""
try:
fieldValue = dataField[fC]
except:
fieldValue = 0
print (" Field %s %d..%d, value = 0x%x, type = %s (%s)"%(fieldName, fieldStart, fieldEnd, fieldValue, dataField[fT], fieldDescription))
# Split field in bytes
offs=groupStart+rangeStart
fv = fieldValue << fieldStart
if dataField[fT] == RO:
t = 0
elif dataField[fT] == RW:
t = 1
elif dataField[fT] == RWC:
t = 2
elif dataField[fT] == RW1:
t = 3
else:
raise("ERROR: Invalid field type %s, only RO, RW, RWC and RX1 are valid"%(dataField[fT]))
ft=0
for i in range(fieldEnd - fieldStart +1):
ft = (ft << 2) | t
ft <<= (2*fieldStart)
for b in range (fieldStart//8, fieldEnd//8 + 1):
if (b > 0):
bs=0
else:
bs = fieldStart % 8
if (b < fieldEnd//8):
be = 7
else:
be = fieldEnd%8
bm = 0;
for i in range (bs,be+1):
bm |= (1 << i)
bv = (fv >> (8*b)) & 0xff
bt = (ft >> (16*b)) & 0xffff
bm16 = 0;
for i in range (bs,be+1):
bm16 |= (3 << (2*i))
# print ("fS = 0x%x, fE=0x%x, fS//8 = 0x%x, fE//8 + 1 = 0x%x, b=%d, fieldValue=0x%x, bv=0x%x"%(fieldStart, fieldEnd, fieldStart//8,(fieldEnd//8) + 1,b, fieldValue, bv))
reg_defaults[offs+b] = ((reg_defaults[offs+b] ^ bv) & bm) ^ reg_defaults[offs+b]
print ("reg_defaults[0x%x] = 0x%x"%(offs+b,reg_defaults[offs+b]))
#bit_types
if (offs+b) < len(bit_types):
bit_types[offs+b] = ((bit_types[offs+b] ^ bt) & bm16) ^ bit_types[offs+b]
print ("bit_types[0x%x] = 0x%x"%(offs+b,bit_types[offs+b]))
def create_no_parity (init_data, # numeric data
num_bits, # number of bits in item
start_bit, # bit number to start filling from
full_bram): # true if ramb36, false - ramb18
bsize = (0x4000,0x8000)[full_bram]
bdata = [0 for i in range(bsize)]
for item in init_data:
for bt in range (num_bits):
bdata[start_bit+bt] = (item >> bt) & 1;
start_bit += num_bits
data = []
for i in range (len(bdata)//256):
d = 0;
for b in range(255, -1,-1):
d = (d<<1) + bdata[256*i+b]
data.append(d)
# print(bdata)
# print(data)
return {'data':data,'data_p':[]}
def print_params(data,out_file_name):
with open(out_file_name,"w") as out_file:
for i, v in enumerate(data['data']):
if v:
print (", .INIT_%02X (256'h%064X)"%(i,v), file=out_file)
# if (include_parity):
for i, v in enumerate(data['data_p']):
if v:
print (", .INITP_%02X (256'h%064X)"%(i,v), file=out_file)
import os
#print (os.path.abspath(__file__))
#print (os.path.dirname(__file__))
#print (os.path.join(os.path.dirname(__file__), reg_defaults_path))
#print (os.path.abspath(os.path.join(os.path.dirname(__file__), reg_defaults_path)))
#print(reg_defaults)
#print("\n-------------------------\n")
#print(create_no_parity(reg_defaults, 8, 0, True))
#print("\n-------------------------\n")
#print(bit_types)
#print("\n-------------------------\n")
#print(create_no_parity(bit_types, 16, 0, True))
print_params(create_no_parity(reg_defaults, 8, 0, True),os.path.abspath(os.path.join(os.path.dirname(__file__), reg_defaults_path)))
print ("AHCI register defaults are written to %s"%(os.path.abspath(os.path.join(os.path.dirname(__file__), reg_defaults_path))))
print_params(create_no_parity(bit_types, 16, 0, True),os.path.abspath(os.path.join(os.path.dirname(__file__), reg_types_path)))
print ("AHCI register bit field types are written to %s"%(os.path.abspath(os.path.join(os.path.dirname(__file__), reg_types_path))))
includes/ahci_defaults.vh 0 → 100644
View file @ 6fdd001b
, .INIT_00 (256'h0000000000000000000000000001030100000001000000008000000000240020)
, .INIT_08 (256'h000000000024000600000000000000000000000080000C000000000080000800)
, .INIT_09 (256'h000000000000000000000000000000000000000000000000FFFFFFFF00000000)
, .INIT_0C (256'h000000000000000000000000000000000000000001010001001000000001FFFE)
, .INIT_0D (256'h000001000000000000000040000000000001FFFE000000008000000000000000)
, .INIT_0E (256'h0000000000000000000000000000000000000000000000000000000040000001)
includes/ahci_types.vh 0 → 100644
View file @ 6fdd001b
, .INIT_00 (256'h0000000000000000AAAAAAAAAAAAAAAA00000000000000070000000000000000)
, .INIT_10 (256'h0000000000000000555555555555000000000000000000005555555555500000)
, .INIT_11 (256'h000000000000000055054004000001C15551400000000455AAA28000000008AA)
, .INIT_12 (256'h0000000000550000000000000000000000000000000000000000000000000000)
, .INIT_13 (256'h00000000AAAAAAAAFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF002AAAAA00AA0008)
, .INIT_14 (256'h000000000000000000000000000000000001555555555550000000000055000D)
, .INIT_17 (256'h5555555555555555555555555555555555555555555555555555555555555555)
, .INIT_18 (256'h00000000000055550000000000000000AA820000001000140000000000000000)
, .INIT_1B (256'h0000000000005555000000000000000000000000000000000000000000000000)
, .INIT_1C (256'h0000000000000000000000000000000000000000800100050000000000000000)
utils/axi_ahci_regs.v
View file @ 6fdd001b
......@@ -25,7 +25,8 @@
module axi_ahci_regs#(
parameter ADDRESS_BITS = 8 // number of memory address bits
// parameter ADDRESS_BITS = 8 // number of memory address bits
parameter ADDRESS_BITS = 10 // number of memory address bits - now fixed. Low half - RO/RW/RWC,RW1 (2-cycle write), 2-nd just RW (single-cycle)
)(
input aclk, // clock - should be buffered
input arst, // @aclk sync reset, active high
......@@ -84,7 +85,7 @@ module axi_ahci_regs#(
output [31:0] hba_dout
);
wire [ADDRESS_BITS-1:0] bram_waddr;
wire [ADDRESS_BITS-1:0] pre_awaddr;
// wire [ADDRESS_BITS-1:0] pre_awaddr;
wire [ADDRESS_BITS-1:0] bram_raddr;
wire [31:0] bram_rdata;
wire pre_bram_wen; // one cycle ahead of bram_wen, nut not masked by dev_ready
......@@ -101,12 +102,17 @@ module axi_ahci_regs#(
wire write_busy_w = write_busy_r || write_start_burst;
reg [31:0] bram_wdata_r;
reg [31:0] bram_rdata_r;
reg bram_wen_d;
// reg bram_wen_d;
wire [63:0] regbit_type;
wire [31:0] ahci_regs_di;
wire [31:0] wmask = {{8{bram_wstb[3]}},{8{bram_wstb[2]}},{8{bram_wstb[1]}},{8{bram_wstb[0]}}};
assign bram_addr = bram_ren[0] ? bram_raddr : (bram_wen ? bram_waddr : pre_awaddr);
reg [ 3:0] bram_wstb_r;
reg bram_wen_r;
// wire [31:0] wmask = {{8{bram_wstb[3]}},{8{bram_wstb[2]}},{8{bram_wstb[1]}},{8{bram_wstb[0]}}};
wire [31:0] wmask = {{8{bram_wstb_r[3]}},{8{bram_wstb_r[2]}},{8{bram_wstb_r[1]}},{8{bram_wstb_r[0]}}};
reg [ADDRESS_BITS-1:0] bram_waddr_r;
wire high_sel = bram_waddr_r[ADDRESS_BITS-1]; // high addresses - use single-cycle writes without read-modify-write
// assign bram_addr = bram_ren[0] ? bram_raddr : (bram_wen ? bram_waddr : pre_awaddr);
assign bram_addr = bram_ren[0] ? bram_raddr : (bram_wen_r ? bram_waddr_r : bram_waddr);
always @(posedge aclk) begin
if (arst) write_busy_r <= 0;
else if (write_start_burst) write_busy_r <= 1;
......@@ -115,18 +121,24 @@ module axi_ahci_regs#(
if (bram_wen) bram_wdata_r <= bram_wdata;
if (bram_ren[1]) bram_rdata_r <= bram_rdata;
bram_wen_d <= bram_wen;
bram_wstb_r <= {4{bram_wen}} & bram_wstb;
bram_wen_r <= bram_wen;
if (bram_wen) bram_waddr_r <= bram_waddr;
end
generate
genvar i;
for (i=0; i < 32; i=i+1) begin: bit_type_block
assign ahci_regs_di[i] = (regbit_type[2*i+1] && wmask[i])?
assign ahci_regs_di[i] = (regbit_type[2*i+1] && wmask[i] && !high_sel)?
((regbit_type[2*i] && wmask[i])?
(bram_rdata[i] || bram_wdata_r[i]): // 3: RW1
(bram_rdata[i] && !bram_wdata_r[i])): // 2: RWC
((regbit_type[2*i] && wmask[i])?
(bram_wdata_r[i]): // 1: RW write new data
(((regbit_type[2*i] && wmask[i]) || high_sel)?
(bram_wdata_r[i]): // 1: RW write new data - get here for high_sel
(bram_rdata[i])); // 0: R0 (keep old data)
end
endgenerate
......@@ -153,7 +165,7 @@ module axi_ahci_regs#(
.bready (bready), // input
.bid (bid), // output[11:0]
.bresp (bresp), // output[1:0]
.pre_awaddr (pre_awaddr), // output[9:0]
.pre_awaddr (), //pre_awaddr), // output[9:0]
.start_burst (write_start_burst), // output
// .dev_ready (!nowrite && !bram_ren[0]), // input
.dev_ready (!bram_wen), // input There will be no 2 bram_wen in a row
......@@ -193,33 +205,37 @@ module axi_ahci_regs#(
.bram_rdata (bram_rdata_r) // input[31:0]
);
wire [ 9:0] hba_addr_ext = (ADDRESS_BITS == 10)? hba_addr: {{(10-ADDRESS_BITS){1'b0}}, hba_addr} ;
wire [ 9:0] bram_addr_ext = (ADDRESS_BITS == 10)? bram_addr: {{(10-ADDRESS_BITS){1'b0}}, bram_addr} ;
wire [ 8:0] brom_addr_ext = (ADDRESS_BITS == 9)? bram_addr: {{(9-ADDRESS_BITS){1'b0}}, bram_addr} ;
// Register memory, lower half uses read-modify-write using bit type from ahci_regs_type_i ROM, 2 aclk cycles/per write and
// high addresses half are just plain write registers, they heve single-cycle write
// Only low registers write generates cross-clock writes over the FIFO.
// All registers can be accessed in byte/word/dword mode over the AXI
// Lower registers are used as AHCI memory registers, high - for AHCI command list(s), to eliminate the need to update transfer count
// in the system memory.
ramt_var_w_var_r #(
ramt_var_wb_var_r #(
.REGISTERS_A (0),
.REGISTERS_B (1),
.LOG2WIDTH_A (5),
.LOG2WIDTH_B (5),
.WRITE_MODE_A("NO_CHANGE"),
.WRITE_MODE_B("NO_CHANGE")
// TODO: include here init (default values)
`include "includes/ahci_defaults.vh"
) ahci_regs_i (
.clk_a (aclk), // input
.addr_a (bram_addr_ext), // input[9:0]
.addr_a (bram_addr), // input[9:0]
.en_a (bram_ren[0] || write_busy_w), // input
.regen_a (1'b0), // input
// .we_a (write_busy_r && !nowrite), // input
.we_a (bram_wen_d), // input
.we_a (bram_wstb_r), //bram_wen_d), // input[3:0]
//
.data_out_a (bram_rdata), // output[31:0]
.data_in_a (ahci_regs_di), // input[31:0]
.clk_b (hba_clk), // input
.addr_b (hba_addr_ext), // input[9:0]
.addr_b (hba_addr), // input[9:0]
.en_b (hba_we || hba_re[0]), // input
.regen_b (hba_re[1]), // input
.we_b (hba_we), // input
.we_b ({4{hba_we}}), // input
.data_out_b (hba_dout), // output[31:0]
.data_in_b (hba_din) // input[31:0]
);
......@@ -229,11 +245,11 @@ module axi_ahci_regs#(
.LOG2WIDTH_WR (6),
.LOG2WIDTH_RD (6),
.DUMMY(0)
// TODO: include here init (register bit types (RO, RW, RWC, RW1)
`include "includes/ahci_types.vh"
) ahci_regs_type_i (
.rclk (aclk), // input
.raddr (brom_addr_ext), // input[8:0]
.ren (bram_wen), // input
.raddr (bram_addr[8:0]), // input[8:0]
.ren (bram_wen && !bram_addr[9]), // input
.regen (1'b0), // input
.data_out (regbit_type), // output[63:0]
.wclk (1'b0), // input
......@@ -252,7 +268,7 @@ module axi_ahci_regs#(
.wrst (arst), // input
.rclk (hba_clk), // input
.wclk (aclk), // input
.we (bram_wen_d), // input
.we (bram_wen_r && !high_sel), // input
.re (soft_write_en), // input
.data_in ({bram_addr, ahci_regs_di}), // input[15:0]
.data_out ({soft_write_addr,soft_write_data}), // output[15:0]
......
utils/ramt_var_wb_var_r.v 0 → 100644
View file @ 6fdd001b
/*******************************************************************************
* Module: ramt_var_wb_var_r
* Date:2015-05-29
* Author: Andrey Filippov
* Description: Dual port memory wrapper, with variable width write (with mask) and variable
* width read, using "TDP" mode of RAMB36E1. Same R/W widths in each port.
* Does not use parity bits to increase total data width, width down to 1 are valid.
*
* Copyright (c) 2015 Elphel, Inc.
* ramt_var_wb_var_r.v is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* ramt_var_wb_var_r.v is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/> .
*
* Additional permission under GNU GPL version 3 section 7:
* If you modify this Program, or any covered work, by linking or combining it
* with independent modules provided by the FPGA vendor only (this permission
* does not extend to any 3-rd party modules, "soft cores" or macros) under
* different license terms solely for the purpose of generating binary "bitstream"
* files and/or simulating the code, the copyright holders of this Program give
* you the right to distribute the covered work without those independent modules
* as long as the source code for them is available from the FPGA vendor free of
* charge, and there is no dependence on any encrypted modules for simulating of
* the combined code. This permission applies to you if the distributed code
* contains all the components and scripts required to completely simulate it
* with at least one of the Free Software programs.
*******************************************************************************/
`timescale 1ns/1ps
`include "system_defines.vh"
/*
Address/data widths
Connect unused data to 1b0, unused addresses - to 1'b1
RAMB18E1 in True Dual Port (TDP) Mode - each port individually
+-----------+---------+---------+---------+
|Data Width | Address | Data | Parity |
+-----------+---------+---------+---------+
| 1 | A[13:0] | D[0] | --- |
| 2 | A[13:1] | D[1:0] | --- |
| 4 | A[13:2] | D[3:0[ | --- |
| 9 | A[13:3] | D[7:0] | DP[0] |
| 18 | A[13:4] | D[15:0] | DP[1:0] |
+-----------+---------+---------+---------+
RAMB18E1 in Simple Dual Port (SDP) Mode
one of the ports (r or w) - 32/36 bits, other - variable
+------------+---------+---------+---------+
|Data Widths | Address | Data | Parity |
+------------+---------+---------+---------+
| 32/ 1 | A[13:0] | D[0] | --- |
| 32/ 2 | A[13:1] | D[1:0] | --- |
| 32/ 4 | A[13:2] | D[3:0[ | --- |
| 36/ 9 | A[13:3] | D[7:0] | DP[0] |
| 36/ 18 | A[13:4] | D[15:0] | DP[1:0] |
| 36/ 36 | A[13:5] | D[31:0] | DP[3:0] |
+------------+---------+---------+---------+
RAMB36E1 in True Dual Port (TDP) Mode - each port individually
+-----------+---------+---------+---------+
|Data Width | Address | Data | Parity |
+-----------+---------+---------+---------+
| 1 | A[14:0] | D[0] | --- |
| 2 | A[14:1] | D[1:0] | --- |
| 4 | A[14:2] | D[3:0[ | --- |
| 9 | A[14:3] | D[7:0] | DP[0] |
| 18 | A[14:4] | D[15:0] | DP[1:0] |
| 36 | A[14:5] | D[31:0] | DP[3:0] |
|1(Cascade) | A[15:0] | D[0] | --- |
+-----------+---------+---------+---------+
RAMB36E1 in Simple Dual Port (SDP) Mode
one of the ports (r or w) - 64/72 bits, other - variable
+------------+---------+---------+---------+
|Data Widths | Address | Data | Parity |
+------------+---------+---------+---------+
| 64/ 1 | A[14:0] | D[0] | --- |
| 64/ 2 | A[14:1] | D[1:0] | --- |
| 64/ 4 | A[14:2] | D[3:0[ | --- |
| 64/ 9 | A[14:3] | D[7:0] | DP[0] |
| 64/ 18 | A[14:4] | D[15:0] | DP[1:0] |
| 64/ 36 | A[14:5] | D[31:0] | DP[3:0] |
| 64/ 72 | A[14:6] | D[63:0] | DP[7:0] |
+------------+---------+---------+---------+
*/
module ramt_var_wb_var_r
#(
parameter integer REGISTERS_A = 0, // 1 - registered output
parameter integer REGISTERS_B = 0, // 1 - registered output
parameter integer LOG2WIDTH_A = 5, // WIDTH= 9 << (LOG2WIDTH - 3)
parameter integer LOG2WIDTH_B = 5, // WIDTH= 9 << (LOG2WIDTH - 3)
parameter WRITE_MODE_A = "NO_CHANGE", //Valid: "WRITE_FIRST", "READ_FIRST", "NO_CHANGE"
parameter WRITE_MODE_B = "NO_CHANGE" //Valid: "WRITE_FIRST", "READ_FIRST", "NO_CHANGE"
`ifdef PRELOAD_BRAMS
,
`include "includes/ram36_declare_init.vh"
`endif
)(
input clk_a, // clock for port A
input [14-LOG2WIDTH_A:0] addr_a, // address port A
input en_a, // enable port A (read and write)
input regen_a, // output register enable port A
// input [((LOG2WIDTH_A > 3)? (LOG2WIDTH_A-3):0):0] we_a, // write port enable port A
input [((LOG2WIDTH_A > 3)? ((LOG2WIDTH_A > 4)?3:1):0):0] we_a, // write port enable port A
output [(1 << LOG2WIDTH_A)-1:0] data_out_a,// data out port A
input [(1 << LOG2WIDTH_A)-1:0] data_in_a, // data in port A
input clk_b, // clock for port BA
input [14-LOG2WIDTH_B:0] addr_b, // address port B
input en_b, // read enable port B
input regen_b, // output register enable port B
// input [((LOG2WIDTH_B > 3)? (LOG2WIDTH_B-3):0):0] we_b, // write port enable port B
input [((LOG2WIDTH_B > 3)? ((LOG2WIDTH_B > 4)?3:1):0):0] we_b, // write port enable port B
output [(1 << LOG2WIDTH_B)-1:0] data_out_b,// data out port B
input [(1 << LOG2WIDTH_B)-1:0] data_in_b // data in port B
);
localparam PWIDTH_A = (LOG2WIDTH_A > 2)? (9 << (LOG2WIDTH_A - 3)): (1 << LOG2WIDTH_A);
localparam PWIDTH_B = (LOG2WIDTH_B > 2)? (9 << (LOG2WIDTH_B - 3)): (1 << LOG2WIDTH_B);
localparam WIDTH_A = 1 << LOG2WIDTH_A;
localparam WIDTH_B = 1 << LOG2WIDTH_B;
wire [31:0] data_out32_a;
assign data_out_a=data_out32_a[WIDTH_A-1:0];
wire [31:0] data_out32_b;
assign data_out_b=data_out32_b[WIDTH_B-1:0];
wire [WIDTH_A+31:0] data_in_ext_a = {32'b0,data_in_a[WIDTH_A-1:0]};
wire [31:0] data_in32_a = data_in_ext_a[31:0];
wire [WIDTH_B+31:0] data_in_ext_b = {32'b0,data_in_b[WIDTH_B-1:0]};
wire [31:0] data_in32_b = data_in_ext_b[31:0];
wire [3:0] we_a4= (LOG2WIDTH_A > 3)? ((LOG2WIDTH_A > 4)? we_a : {2{we_a}} ):{4{we_a}};
wire [3:0] we_b4= (LOG2WIDTH_B > 3)? ((LOG2WIDTH_B > 4)? we_a : {2{we_b}} ):{4{we_b}};
RAMB36E1
#(
.RSTREG_PRIORITY_A ("RSTREG"), // Valid: "RSTREG" or "REGCE"
.RSTREG_PRIORITY_B ("RSTREG"), // Valid: "RSTREG" or "REGCE"
.DOA_REG (REGISTERS_A), // Valid: 0 (no output registers) and 1 - one output register (in SDP - to lower 36)
.DOB_REG (REGISTERS_B), // Valid: 0 (no output registers) and 1 - one output register (in SDP - to lower 36)
.RAM_EXTENSION_A ("NONE"), // Cascading, valid: "NONE","UPPER", LOWER"
.RAM_EXTENSION_B ("NONE"), // Cascading, valid: "NONE","UPPER", LOWER"
.READ_WIDTH_A (PWIDTH_A), // Valid: 0,1,2,4,9,18,36 and in SDP mode - 72 (should be 0 if port is not used)
.READ_WIDTH_B (PWIDTH_B), // Valid: 0,1,2,4,9,18,36 and in SDP mode - 72 (should be 0 if port is not used)
.WRITE_WIDTH_A (PWIDTH_A), // Valid: 0,1,2,4,9,18,36 and in SDP mode - 72 (should be 0 if port is not used)
.WRITE_WIDTH_B (PWIDTH_B), // Valid: 0,1,2,4,9,18,36 and in SDP mode - 72 (should be 0 if port is not used)
.RAM_MODE ("TDP"), // Valid "TDP" (true dual-port) and "SDP" - simple dual-port
.WRITE_MODE_A (WRITE_MODE_A), // Valid: "WRITE_FIRST", "READ_FIRST", "NO_CHANGE"
.WRITE_MODE_B (WRITE_MODE_B), // Valid: "WRITE_FIRST", "READ_FIRST", "NO_CHANGE"
.RDADDR_COLLISION_HWCONFIG ("DELAYED_WRITE"),// Valid: "DELAYED_WRITE","PERFORMANCE" (no access to the same page)
.SIM_COLLISION_CHECK ("ALL"), // Valid: "ALL", "GENERATE_X_ONLY", "NONE", and "WARNING_ONLY"
.INIT_FILE ("NONE"), // "NONE" or filename with initialization data
.SIM_DEVICE ("7SERIES"), // Simulation device family - "VIRTEX6", "VIRTEX5" and "7_SERIES" // "7SERIES"
.EN_ECC_READ ("FALSE"), // Valid:"FALSE","TRUE" (ECC decoder circuitry)
.EN_ECC_WRITE ("FALSE") // Valid:"FALSE","TRUE" (ECC decoder circuitry)
`ifdef PRELOAD_BRAMS
`include "includes/ram36_pass_init.vh"
`endif
) RAMB36E1_i
(
// Port A (Read port in SDP mode):
.DOADO (data_out32_a), // Port A data/LSB data[31:0], output
.DOPADOP (), // Port A parity/LSB parity[3:0], output
.DIADI (data_in32_a), // Port A data/LSB data[31:0], input
.DIPADIP (4'b0), // Port A parity/LSB parity[3:0], input
.ADDRARDADDR ({1'b1,addr_a,{LOG2WIDTH_A{1'b1}}}), // Port A (read port in SDP) address [15:0]. used from [14] down, unused should be high, input
.CLKARDCLK (clk_a), // Port A (read port in SDP) clock, input
.ENARDEN (en_a), // Port A (read port in SDP) Enable, input
.REGCEAREGCE (regen_a), // Port A (read port in SDP) register enable, input
.RSTRAMARSTRAM (1'b0), // Port A (read port in SDP) set/reset, input
.RSTREGARSTREG (1'b0), // Port A (read port in SDP) register set/reset, input
.WEA (we_a4), // Port A (read port in SDP) Write Enable[3:0], input
// Port B
.DOBDO (data_out32_b), // Port B data/MSB data[31:0], output
.DOPBDOP (), // Port B parity/MSB parity[3:0], output
.DIBDI (data_in32_b), // Port B data/MSB data[31:0], input
.DIPBDIP (4'b0), // Port B parity/MSB parity[3:0], input
.ADDRBWRADDR ({1'b1,addr_b,{LOG2WIDTH_B{1'b1}}}), // Port B (write port in SDP) address [15:0]. used from [14] down, unused should be high, input
.CLKBWRCLK (clk_b), // Port B (write port in SDP) clock, input
.ENBWREN (en_b), // Port B (write port in SDP) Enable, input
.REGCEB (regen_b), // Port B (write port in SDP) register enable, input
.RSTRAMB (1'b0), // Port B (write port in SDP) set/reset, input
.RSTREGB (1'b0), // Port B (write port in SDP) register set/reset, input
.WEBWE ({4'b0,we_b4}),// Port B (write port in SDP) Write Enable[7:0], input
// Error correction circuitry
.SBITERR (), // Single bit error status, output
.DBITERR (), // Double bit error status, output
.ECCPARITY (), // Genearted error correction parity [7:0], output
.RDADDRECC (), // ECC read address[8:0], output
.INJECTSBITERR (1'b0), // inject a single-bit error, input
.INJECTDBITERR (1'b0), // inject a double-bit error, input
// Cascade signals to create 64Kx1
.CASCADEOUTA (), // A-port cascade, output
.CASCADEOUTB (), // B-port cascade, output
.CASCADEINA (1'b0), // A-port cascade, input
.CASCADEINB (1'b0) // B-port cascade, input
);
endmodule
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