Humm ... Nobody can help me ? If you need more informations I can get them, I would really like to understand the debug output I'm seeing.
Thank you Sylvain 2008/10/7 Sylvain Lamontagne <[EMAIL PROTECTED]> > Hi Everyone > > I'm pretty new to U-Boot and Embedded system globally, but in the last few > weeks I have learn a lot and I'm now trying to port correctly U-Boot v 1.3.4 > to a custom board based on a Icecube. I'm able to boot a linux kernel with > it when I use the RAM with the bootm command. > > Unfortunately, I must make it work with the FLASH. The chip used for the > flash is a S29GL128 or a S29GL256 from Spansion, they are 16bits chips but > the bus is only 8bits. By reading the datasheet, these chips are supposed to > support the Common Flash Interface so I'm trying to make then work with the > CFI driver of U-Boot. > > Here is what I get when booting with DEBUG activated: > > U-Boot 1.3.4 (Oct 7 2008 - 16:39:49) >> >> CPU: MPC5200B v2.2, Core v1.4 at 378 MHz >> Bus 84 MHz, IPB 84 MHz, PCI 21 MHz >> Board: Icecube Based Board >> I2C: 93 kHz, ready >> DRAM: 64 MB >> Top of RAM usable for U-Boot at: 04000000 >> Reserving 551k for U-Boot at: 03f76000 >> Reserving 130k for malloc() at: 03f55800 >> Reserving 68 Bytes for Board Info at: 03f557bc >> Reserving 60 Bytes for Global Data at: 03f55780 >> Stack Pointer at: 03f55768 >> New Stack Pointer is: 03f55768 >> Now running in RAM - U-Boot at: 03f76000 >> FLASH: flash detect cfi >> fwc addr ff000000 cmd f0 f0 8bit x 8 bit >> fwc addr ff000000 cmd f0 f0 8bit x 8 bit >> fwc addr ff000055 cmd 98 98 8bit x 8 bit >> is= cmd 51(Q) addr ff000010 is= 0 51 >> fwc addr ff000555 cmd 98 98 8bit x 8 bit >> is= cmd 51(Q) addr ff000010 is= 0 51 >> fwc addr ff000000 cmd f0 f0f0 16bit x 8 bit >> fwc addr ff000000 cmd f0 f0f0 16bit x 8 bit >> fwc addr ff0000aa cmd 98 9898 16bit x 8 bit >> is= cmd 51(Q) addr ff000020 is= 5151 5151 >> is= cmd 52(R) addr ff000022 is= 5252 5252 >> is= cmd 59(Y) addr ff000024 is= 5959 5959 >> device interface is 2 >> found port 2 chip 1 port 16 bits chip 8 bits >> 00 : 51 52 59 02 00 40 00 00 00 00 00 27 36 00 00 06 [EMAIL PROTECTED]'6... >> 10 : 06 09 13 03 05 03 02 19 02 00 06 00 01 ff 00 00 ................ >> 20 : 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 20 ............... >> fwc addr ff000000 cmd f0 f0f0 16bit x 8 bit >> fwc addr ff001554 cmd aa aaaa 16bit x 8 bit >> fwc addr ff000aaa cmd 55 5555 16bit x 8 bit >> fwc addr ff001554 cmd 90 9090 16bit x 8 bit >> fwc addr ff000000 cmd f0 f0f0 16bit x 8 bit >> fwc addr ff0000aa cmd 98 9898 16bit x 8 bit >> manufacturer is 2 >> manufacturer id is 0x5 >> device id is 0x56 >> device id2 is 0x0 >> cfi version is 0x3133 >> size_ratio 1 port 16 bits chip 8 bits >> found 1 erase regions >> erase region 0: 0x020000ff >> erase_region_count = 256 erase_region_size = 131072 >> ERROR: too many flash sectors >> fwc addr ff000000 cmd f0 f0 8bit x 8 bit >> flash_protect ON: from 0xFFF00000 to 0xFFF43FFF >> flash_protect ON: from 0xFFFE0000 to 0xFFFFFFFF >> 32 MB >> basetask = 0, tasks = 2 >> task_org = 0x03fb4c00 >> TDT start = 0x00000040, end = 0x000001b8 >> PCI: Bus Dev VenId DevId Class Int >> PCI Scan: Found Bus 0, Device 24, Function 0 >> 00 18 168c 001b 0200 00 >> PCI Scan: Found Bus 0, Device 26, Function 0 >> 00 1a 1057 5809 0680 00 >> In: serial >> Out: serial >> Err: serial >> U-Boot relocated to 03f76000 >> Net: mpc5xxx_fec_init_phy... Begin >> mpc5xxx_fec_init_phy... Done >> FEC ETHERNET >> >> Type "boot" to boot to Linux (default) >> Type "help" for a list of commands > > > So I got an "ERROR: too many flash sectors" and a 32 MB size ... I know for > sure that the chip is 16 MB so there is a kind of inconsistency... > I'm also a bit confuse about what "#define" I should use to force my board > to communicate in 8bit even if it's capable of 16bit. > I though that I simply had to "#undef FLASH_CFI_16BIT" but that doesn't > seem to do the trick. > > I'm not sure to understand the debug output I got... > fwc addr ff000000 cmd f0 f0 8bit x 8 bit > ... > fwc addr ff000000 cmd f0 f0f0 16bit x 8 bit > > Also is the value of erase_region_count = 256 should be the number of > sector on the chip ???? Because I know that the ship have a maximum of 128 > sectors... > If someone could brief me a bit about the debug output posted above I would > greatly appreciate. > > I'm pretty sure I have nearly complete the port except for this FLASH > issue... > > Help/Suggestion/Comments are welcome > > Thank you > > Sylvain >
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