* Re:[ECOS] Flash detection [not found] <000b01c3a7d0$49ead9f0$030aa8c0@kavik> @ 2003-11-11 10:08 ` M.Eugenia G.Valdecasas 2003-11-11 11:22 ` [ECOS] " Jani Monoses 2003-11-11 12:51 ` Gary Thomas 0 siblings, 2 replies; 3+ messages in thread From: M.Eugenia G.Valdecasas @ 2003-11-11 10:08 UTC (permalink / raw) To: gary; +Cc: ecos-discuss > > The configuration lines are: > > > > in altair_strataflash.inl-> > > > > #define CYGNUM_FLASH_DEVICES (2) > > #define CYGNUM_FLASH_BASE (0x00000000u) > > #define CYGNUM_FLASH_BASE_MASK (0xFE000000u) // 2 * 16Mb devices > > > #define CYGNUM_FLASH_WIDTH (16) > > > #define CYGNUM_FLASH_BLANK (1) > > > > > > #define FLASH_P2V(x) ((volatile flash_t *)(((unsigned)(x) < > 0x1000) ? \ > > > ((unsigned)(x) | 0xa0000000) : \ > > > (unsigned)(x))) > > > > > > Why do you have this code? I think it was only necessary on the > IQ80321 > and definitely *not* on the PXA25x If I substitude this code for #define FLASH_P2V(x) (unsigned)(x) The exit on the console would be: +$T0a0f:08f0efa3;0d:d8ca00a0;#a7 and would repeat the same line every time I press a key. Also I tried to apply the patch for strataflash: 2003-05-02 Jani Monoses but it gave me this answer as well: +$T0a0f:08f0efa3;0d:d8ca00a0;#a7 Do I have to apply other patches? I know I take ok the data of the flash (manufacturer code, qry etc...) but somehow somewhere between the cache enable and cache disable, this data is lost... does it make anysense what I am saying??? Why would it jump out of this condition if ( (qp->manuf_code == FLASH_Intel_code) && (strncmp(qp->id, "QRY", 3) == 0)) if the data that the flash sends is correct???? I am out of ideas.... -- Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos and search the list archive: http://sources.redhat.com/ml/ecos-discuss ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [ECOS] Flash detection 2003-11-11 10:08 ` Re:[ECOS] Flash detection M.Eugenia G.Valdecasas @ 2003-11-11 11:22 ` Jani Monoses 2003-11-11 12:51 ` Gary Thomas 1 sibling, 0 replies; 3+ messages in thread From: Jani Monoses @ 2003-11-11 11:22 UTC (permalink / raw) To: ecos-discuss > If I substitude this code for > #define FLASH_P2V(x) (unsigned)(x) > > The exit on the console would be: > > +$T0a0f:08f0efa3;0d:d8ca00a0;#a7 Do you have the same behaviour with current strataflash from CVS? I know at one point cache handling was broken and the patch you said you applied fixed it but still.. Exit minicom and look with gdb why the above exception occurs arm-elf-gdb install/bin/redboot.elf ()tar rem /dev/ttyS0 (or whichever port your target is connected to) ()bt -- Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos and search the list archive: http://sources.redhat.com/ml/ecos-discuss ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Re:[ECOS] Flash detection 2003-11-11 10:08 ` Re:[ECOS] Flash detection M.Eugenia G.Valdecasas 2003-11-11 11:22 ` [ECOS] " Jani Monoses @ 2003-11-11 12:51 ` Gary Thomas 1 sibling, 0 replies; 3+ messages in thread From: Gary Thomas @ 2003-11-11 12:51 UTC (permalink / raw) To: M.Eugenia G.Valdecasas; +Cc: ecos-discuss On Tue, 2003-11-11 at 03:07, M.Eugenia G.Valdecasas wrote: > > > The configuration lines are: > > > > > > in altair_strataflash.inl-> > > > > > > #define CYGNUM_FLASH_DEVICES (2) > > > #define CYGNUM_FLASH_BASE (0x00000000u) > > > #define CYGNUM_FLASH_BASE_MASK (0xFE000000u) // 2 * 16Mb devices > > > > #define CYGNUM_FLASH_WIDTH (16) > > > > #define CYGNUM_FLASH_BLANK (1) > > > > > > > > #define FLASH_P2V(x) ((volatile flash_t *)(((unsigned)(x) < > > 0x1000) ? \ > > > > ((unsigned)(x) | 0xa0000000) : \ > > > > (unsigned)(x))) > > > > > > > > > > Why do you have this code? I think it was only necessary on the > > IQ80321 > > and definitely *not* on the PXA25x > > If I substitude this code for > #define FLASH_P2V(x) (unsigned)(x) > > The exit on the console would be: > > +$T0a0f:08f0efa3;0d:d8ca00a0;#a7 > > and would repeat the same line every time I press a key. First of all, this is RedBoot falling into GDB mode, indicating that you are accessing invalid memory. I think you have other configuration or setup issues here. On most ARM platforms, PXA25x based ones included, the hardware has FLASH at 0x00000000 (as you write above), but eCos immediately uses the MMU to remap this to some other address. For example, on the uE250 (PXA250) the FLASH is at *logical* address 0x50000000 and this is the address used by the FLASH drivers. You'll have to figure out the appropriate address to use, based on how memory is being remapped. > > Also I tried to apply the patch for strataflash: > 2003-05-02 Jani Monoses > > but it gave me this answer as well: > +$T0a0f:08f0efa3;0d:d8ca00a0;#a7 > > Do I have to apply other patches? > > I know I take ok the data of the flash (manufacturer code, qry etc...) > but somehow somewhere between the cache enable and cache disable, this > data is lost... does it make anysense what I am saying??? > > Why would it jump out of this condition > if ( (qp->manuf_code == FLASH_Intel_code) && > (strncmp(qp->id, "QRY", 3) == 0)) > > if the data that the flash sends is correct???? > I am out of ideas.... -- Gary Thomas <gary@mlbassoc.com> MLB Associates -- Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos and search the list archive: http://sources.redhat.com/ml/ecos-discuss ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2003-11-11 12:51 UTC | newest] Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- [not found] <000b01c3a7d0$49ead9f0$030aa8c0@kavik> 2003-11-11 10:08 ` Re:[ECOS] Flash detection M.Eugenia G.Valdecasas 2003-11-11 11:22 ` [ECOS] " Jani Monoses 2003-11-11 12:51 ` Gary Thomas
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