The PCI Express card is visible in u-boot so we believe the hardware is good. However, it is not visible in Linux only the bridge shows up. Any suggestions would be greatly appreciated.
Reset Configuration Word (RCW):
00000000: 0608000a 00000000 00000000 00000000
00000010: 20000000 00403900 e0025a00 21046000
00000020: 00000000 00000000 00000000 18000000
00000030: 00080000 481b7340 00000000 00000000
Board: LS1021ATWR
CPLD: V3.2
PCBA: V0.0
VBank: 0
I2C: ready
DRAM: Initializing DDR....using SPD
Detected UDIMM i-DIMM
1 GiB (DDR3, 32-bit, CL=11, ECC off)
Using SERDES1 Protocol: 32 (0x20)
Firmware 'Microcode version 0.0.1 for LS1021a r1.0' for 1021 V1.0
QE: uploading microcode 'Microcode for LS1021a r1.0' version 0.0.1
The regulator (MC34VR500) does not exist. The device does not support deep sleep.
Flash: 64 MiB
MMC: FSL_SDHC: 0
EEPROM: Read failed.
PCIe1: Root Complex x1 gen1, regs @ 0x3400000
01:00.0 - 10ec:8168 - Network controller
PCIe1: Bus 00 - 01
PCIe2: Root Complex x1 gen1, regs @ 0x3500000
03:00.0 - 10ec:8168 - Network controller
PCIe2: Bus 02 - 03
In: serial
Out: serial
Err: serial
SATA link 0 timeout.
AHCI 0001.0300 1 slots 1 ports ? Gbps 0x1 impl SATA mode
flags: 64bit ncq pm clo only pmp fbss pio slum part ccc
scanning bus for devices...
Found 0 device(s).
SCSI: Net: eTSEC1 is in sgmii mode.
eTSEC1, eTSEC3 [PRIME]
Hit any key to stop autoboot: 0
## Booting kernel from Legacy Image at 60200000 ...
Image Name: Linux-3.14.28-ipipe
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 3507112 Bytes = 3.3 MiB
Load Address: 82000000
Entry Point: 82000000
Verifying Checksum ... OK
## Flattened Device Tree blob at 60020000
Booting using the fdt blob at 0x60020000
Loading Kernel Image ... OK
Loading Device Tree to bef13000, end bef1b61f ... OK
Starting kernel ...
Debian GNU/Linux 7 ubuntu ttyS0
ubuntu login: root
Password:
Last login: Thu Jan 1 00:00:16 UTC 1970 on ttyS0
Linux ubuntu 3.14.28-ipipe #52 SMP Thu Feb 18 13:14:39 PST 2016 armv7l
The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
-bash: cd: /opt/ppmac: No such file or directory
root@:~# lspci
0000:00:00.0 PCI bridge: Freescale Semiconductor Inc Device 0e0b (rev 20)
0001:00:00.0 PCI bridge: Freescale Semiconductor Inc Device 0e0b (rev 20)
root@:~#
已解决! 转到解答。
Suggestions:
1. Use the kernel from the most recent QorIQ SDK. There are no known
issues with your board and PCIe under the SDK
2. Check the SerDes link status with lspci -vv.
3. cat /proc/bus/pci/devices to circumvent any problems with lspci
4. Try scanpci. This attempts to re-discover the devices.
Have a great day,
Platon
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Hi Henry,
I saw your uboot log and it shows you have two PCIe enabled, I am working on a wifi module which is connected to the PCIe 1 interface. But how did you change the SERDES1 Protocol: 32 (0x20) mine is 48 (0x30).
Suggestions:
1. Use the kernel from the most recent QorIQ SDK. There are no known
issues with your board and PCIe under the SDK
2. Check the SerDes link status with lspci -vv.
3. cat /proc/bus/pci/devices to circumvent any problems with lspci
4. Try scanpci. This attempts to re-discover the devices.
Have a great day,
Platon
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------