Hello support team,
I have dozen of fsl_t2080qds board, this board has some problem when boot from uboot, it usually hang up at DIMM initializing, I know maybe this is a hardware issue, is there any workaround to boot the board up?
U-Boot 2014.07QorIQ-SDK-V1.7+g659b6a2 (Dec 13 2014 - 16:57:54)
CPU0: T2080E, Version: 1.1, (0x85380011)
Core: e6500, Version: 2.0, (0x80400120)
Clock Configuration:
CPU0:1800 MHz, CPU1:1800 MHz, CPU2:1800 MHz, CPU3:1800 MHz,
CCB:700 MHz,
DDR:933.333 MHz (1866.667 MT/s data rate) (Asynchronous), IFC:175 MHz
FMAN1: 700 MHz
QMAN: 350 MHz
PME: 700 MHz
L1: D-cache 32 KiB enabled
I-cache 32 KiB enabled
Reset Configuration Word (RCW):
00000000: 0e070012 0e000000 00000000 00000000
00000010: 66150002 00000000 ec027000 c1000000
00000020: 00000000 00000000 00000000 000307fc
00000030: 00000000 00000000 00000000 00000004
Board: T2080QDS, Sys ID: 0x28, Board Arch: V1, Board Version: A, boot from vBank0
FPGA: v11 (T1040QDS_2014_0318_1724), build 317 on Tue Mar 18 21:24:26 2014
SERDES Reference Clocks:
SD1_CLK1=156.25MHZ, SD1_CLK2=100.00MHz
SD2_CLK1=100.00MHz, SD2_CLK2=100.00MHz
I2C: ready
SPI: ready
DRAM: Initializing....using SPD
DDR: failed to read SPD from address 81
Detected UDIMM
The choosen cas latency 29 is too large
Error: unsupported cas latency for mode register
Waiting for D_INIT timeout. Memory may not work.
1) Try to replace UDIMM (it is possible to take one from a working board).
2) Use a digital scope to check behavior of the I2C1 interface which is used to read the SPD EEPROM data.