On Oct 25, 2011, at 9:37 AM, JACOBS Willy wrote: > We discover on our own developed board based on a MPC8548, a FPGA connected > through the PCIe bus which the PQ3, and running U-BOOT, Linux 2.6.33.7 (+ RT > patches), and a Wind River 2.0 root file system on irregular occurrences that > the > PQ3 "freezes". The main application running on the PQ3 transfer data between > the > FPGA/PCIe (bi-directional over several PCIe lanes) and the MOTTSECs (at > gigabit > speed). > With a Wind River Probe we can connected to the PQ3 JTAG, and to look > into the PQ3 registers. In the erroneous state we always see: > > - all the CPU e500 core registers have the value 0 > - the L1 I/D caches are disabled > - the L2 cache is still enabled > - the DDR SDRAM logic is disabled (DDR_SDRAM_CFG[MEN_EN] = 0); the other > DDR_SDRAM_CFG bits contains the programmed value > - the contents of the remaining peripheral registers look OK > > We have already swapped boards, without any success. > On the same boards we have also other applications running without this > "freeze" problem. > Because no exception are generated it's very difficult to catch the root > cause. > So any help is appreciated. > > U-Boot 2009.01.01 (Oct 08 2010 - 08:35:06) > > CPU: 8548, Version: 2.1, (0x80310021) > Core: E500, Version: 2.2, (0x80210022) > Clock Configuration: > CPU:1333.333 MHz, CCB:533.333 MHz, > DDR:266.667 MHz (533.333 MT/s data rate), LBC:66.667 MHz > L1: D-cache 32 kB enabled > I-cache 32 kB enabled > I2C: ready > Board: thales,payarapc8548, 12nc: 955683208506, snr: 0014 > DRAM: DDR: 2 GB > FLASH: 128 MB > L2: 512 KB enabled > PCI: 32 bit, 66 MHz, async, host, arbiter > Scanning PCI bus 00 > PCI on bus 00 - 00 > > PCIE connected to slot as Root Complex (base address e000a000) > PCIE on bus 1 - 1 > In: serial > Out: serial > Err: serial > Net: tsec0, tsec1, tsec2 [PRIME]
You appear to be freezing in u-boot, should ask your question on that list. - k _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
