> On 12/03/2015 01:49 AM, Wang Huan-B18965 wrote: > > <snip> > > >> > >> The actual command which results in a watchdog reset is 'sf read > >> 0x81040000 0x200000 0x400000'. Please note that this uses an external > >> watchdog which is enabled by default and resets after ~1.5s. The > >> command itself takes about 2s (taken from my watch). > >> > > [Alison Wang] I could not reproduce the issue. Maybe I don't have the > > external watchdog which will reset after ~1.5s as Alexander mentioned. > > > > U-Boot 2015.10-00273-g7ee52af (Dec 03 2015 - 17:32:24 +0800) > > > > CPU: Freescale LayerScape LS1021E, Version: 2.0, (0x87081120) > > Clock Configuration: > > CPU0(ARMV7):1000 MHz, > > Bus:300 MHz, DDR:800 MHz (1600 MT/s data rate), Reset > > Configuration Word (RCW): > > 00000000: 0608000a 00000000 00000000 00000000 > > 00000010: 30000000 00007900 40025a00 21046000 > > 00000020: 00000000 00000000 00000000 20000000 > > 00000030: 20024800 881b7540 00000000 00000000 > > Model: LS1021A TWR Board > > Board: LS1021ATWR > > I2C: ready > > DRAM: 1 GiB > > Using SERDES1 Protocol: 48 (0x30) > > MMC: FSL_SDHC: 0 > > SF: Detected N25Q128 with page size 256 Bytes, erase size 64 KiB, > > total 16 MiB > > EEPROM: NXID v1 > > PCIe1: Root Complex no link, regs @ 0x3400000 > > PCIe2: disabled > > In: serial > > Out: serial > > Err: serial > > SEC: RNG instantiated > > 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 Found 0 > > device(s). > > SCSI: Net: eTSEC1 is in sgmii mode. > > eTSEC2 is in sgmii mode. > > eTSEC1, eTSEC2, eTSEC3 [PRIME] > > => => sf probe > > SF: Detected N25Q128 with page size 256 Bytes, erase size 64 KiB, > > total 16 MiB => sf read 0x81040000 0x200000 0x400000 device 0 offset > > 0x200000, size 0x400000 > > SF: 4194304 bytes @ 0x200000 Read: OK > > => > > Alison and Alexander, > > My concerns are > > Is the watchdog triggered reasonably? [Alison Wang] I think as Alexander set the watchdog to 1s timeout, so the trigger occurs at that time. > How long does it take to load the file? [Alison Wang] About 2s. > Is SPI running at reasonable speed? [Alison Wang] Yes. > Is there other similar situations such as loading large file off NOR > flash? [Alison Wang] If we don't set the watchdog to 1s timeout, both loading Large file to serial flash or NOR flash, there is not such situation. If we set the watchdog to 1s timeout, I think there are both such situation.
Alexander, do you agree with my answer? Please give your comments too. :) Best Regards, Alison Wang _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
