↑ Page | Abbreviation | Description | Tags |
---|---|---|---|
ltssm | STSSM | Link Training and Status State Machine | pcie |
https://xilinx.github.io/pcie-debug-kmap/pciedebug/build/html/docs/PCIe_Collaterals/index.html | PCIE DEBUG (GENERAL) |
https://support.xilinx.com/s/article/56616?language=en_US | 56616 - 7 Series Integrated Block for PCI Express - Link Training Debug Guide |
https://support.xilinx.com/s/article/73361?language=en_US | 73361 - Xilinx PCI Express Gen3 Link Training Debugging Guide for UltraScale and UltraScale+ Devices |
https://support.xilinx.com/s/article/71355?language=en_US | 71355 - Vivado ILA Usage Guide for UltraScale FPGA Gen3 Integrated Block for PCI Express |
https://support.xilinx.com/s/article/1097525?language=en_US | Debugging PCI Express Link Training Issues with Integrated Debugging Features in the IP |
https://github.com/Xilinx/chipscopy/tree/master | ILA, JTAG, DDR, PROGRAM |
PCIe корка стартует нормально только если прошивка быстро загружается из флешки.
Вариант конфигурации через JTAG, а потом ребут компа или пауза в u-boot и потом загрузка Linux не прокатывают.
Возможно, это можно как-то обойти (более глубоко сбрасывать трансиверы - PERST недостаточно)
#define LTSSM_DETECT 0 #define LTSSM_POLLING 1 #define LTSSM_CONFIG 2 #define LTSSM_RECOVERY 3 #define LTSSM_DISABLED 4 #define LTSSM_HOTRESET 5 #define LTSSM_LOOPBACK 6 #define LTSSM_L0 7 #define LTSSM_L0s 8 #define LTSSM_L1 9 #define LTSSM_L2 10
detect.quiet", /* 0x00 */ detect.active", /* 0x01 */ polling.active", /* 0x02 */ polling.compliance", /* 0x03 */ polling.configuration", /* 0x04 */ config.linkwidthstart", /* 0x05 */ config.linkwidthaccept", /* 0x06 */ config.lanenumwait", /* 0x07 */ config.lanenumaccept", /* 0x08 */ config.complete", /* 0x09 */ config.idle", /* 0x0A */ recovery.receiverlock", /* 0x0B */ recovery.equalization", /* 0x0C */ recovery.speed", /* 0x0D */ recovery.receiverconfig", /* 0x0E */ recovery.idle", /* 0x0F */ L0", /* 0x10 */ L0s", /* 0x11 */ L1.entry", /* 0x12 */ L1.idle", /* 0x13 */ L2.idle", /* 0x14 */ L2.transmitwake", /* 0x15 */ disable", /* 0x16 */ loopback.entry", /* 0x17 */ loopback.active", /* 0x18 */ loopback.exit", /* 0x19 */ hotreset", /* 0x1A */
Xilinx Xore:
00: Detect.Quiet 01: Detect.Active 02: Polling.Active 03: Polling.Compliance 04: Polling.Configuration 05: Configuration.Linkwidth.Start 06: Configuration.Linkwidth.Accept 07: Configuration.Lanenum.Accept 08: Configuration.Lanenum.Wait 09: Configuration.Complete 0A: Configuration.Idle 0B: Recovery.RcvrLock 0C: Recovery.Speed 0D: Recovery.RcvrCfg 0E: Recovery.Idle 10: L0 11-16: Reserved 17: L1.Entry 18: L1.Idle 19-1A: Reserved 20: Disabled 21: Loopback_Entry_Master 22: Loopback_Active_Master 23: Loopback_Exit_Master 24: Loopback_Entry_Slave 25: Loopback_Active_Slave 26: Loopback_Exit_Slave 27: Hot_Reset 28: Recovery_Equalization_Phase0 29: Recovery_Equalization_Phase1 2a: Recovery_Equalization_Phase2 2b: Recovery_Equalization_Phase3