[U-Boot] Problem with flash on a MPC5200B board
Sylvain Lamontagne
sylvain.lamontagne at gmail.com
Thu Oct 9 23:18:27 CEST 2008
Hi again everyone
I tried a lot of stuff today but was still unable get it to work.
Here is my Flash configuration:
/*
* Flash configuration
*/
#define CFG_FLASH_BASE 0xFF000000
#define CFG_FLASH_SIZE 0x1000000
//#define CFG_ENV_ADDR 0xFFFE0000
#define CFG_ENV_OFFSET 0x00FE0000
//#define CFG_FLASH_MAX_SIZE 0x00ffffff
#define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_ENV_OFFSET)
#define CFG_MAX_FLASH_BANKS 1 /* max num of memory banks */
#define CFG_MAX_FLASH_SECT 128 /* max num of sectors on one chip */
#define CFG_FLASH_SECT_SIZE 0x20000
#define CFG_FLASH_ERASE_TOUT 240000 /* Flash Erase Timeout (in ms) */
#define CFG_FLASH_WRITE_TOUT 500 /* Flash Write Timeout (in ms) */
#undef CONFIG_FLASH_16BIT /* Flash is 8-bit */
//#define CONFIG_FLASH_16BIT
#define CFG_FLASH_CFI_DRIVER
#define CFG_FLASH_CFI
#define CFG_FLASH_USE_BUFFER_WRITE
#define CFG_FLASH_BANKS_LIST {CFG_FLASH_BASE}
I think the problem may come from the Manufacturer ID and Device ID, from
the datasheet it's supposed to be:
Manufacturer ID xx01h/1h
Device ID, Word 1 227Eh/7Eh
The CFI detection seems to report them as
manufacturer id is 0x5
device id is 0x56
How can I force it ?
Or maybe I'm totally searching in the wrong direction...
Sylvain
2008/10/8 Sylvain Lamontagne <sylvain.lamontagne at gmail.com>
> 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 <sylvain.lamontagne at gmail.com>
>
> 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 QRY.. at .....'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
>>
>
>
More information about the U-Boot
mailing list