SPRUIM2H May 2020 – October 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
Table 4-47 shows the boot parameter table for PCIe boot. Must be preceded with the common boot parameters described in Table 4-38.
Byte Offset | Size (bytes) | Name | Default Value | Description |
---|---|---|---|---|
256 | 4 | portNum | 0 | Physical port number |
260 | 4 | AddrWid | 64 | PCIe address width |
264 | 4 | LinkRate | 5000 | Link rate in MHz |
268 | 4 | RefClkkHz | 100000 | Serdes reference clock in kHz |
272 | 4 | Nlanes | 1 | Number of PCIe lanes configured (link width) |
276 | 4 | Rsvd | 4 | Reserved |
280 | 4 | Rsvd | 256 | Reserved |
284 | 4 | Rsvd | 256 | Reserved |
288 | 4 | Rsvd | 0 | Reserved |
292 | 4 | Rsvd | 0 | Reserved |
296 | 4 | Vendor ID | 0x104C | PCIe Vendor ID value (read from control registers) |
300 | 4 | Device ID | 0xB00D | PCIe Device ID value (read from control registers) |
304 | 4 | Class code/revision ID | 0x04800001 | PCIe class code and revision ID value |
308 | 4 | SerDes Clocking Mode | From Pin | 0 = Received. 1 = Derived |
312 | 4 | SSC Enable | 1 | SSC is enabled in Derived Mode. SSC is disabled in Received Mode |
316 | 4 | RefSrc | 2 | SerDes reference clock source (SERDES0_CORE_REFCLK_SEL[1:0] |