Re: [U-Boot] Nor Flash SST39VF6402B cfi compliant support
Hi Fabio, On Thursday 15 July 2010 11:55:17 Fabio Giovagnini wrote: In my experience the SST39VF6402B has become full compliant with CFI mtd interface just few linux kernel ago. In linux 2.6.17 it was not. I'm developing on U-Boot 2010.06-rc2-07985-g53f7677-dirty (lug 15 2010 - 11:41:21) is it compliant with SST39VF6402B Is among of you other people using on their own board such a flash? No. I haven't used those SST parts for a long time. But I assume that its still not 100% CFI compliant. But you can use the legacy infrastructure to add support to it. Shouldn't be to difficult. Take a look at: CONFIG_FLASH_CFI_LEGACY and drivers/mtd/jedec_flash.c Cheers, Stefan -- DENX Software Engineering GmbH, MD: Wolfgang Denk Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-0 Fax: (+49)-8142-66989-80 Email: off...@denx.de ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
Re: [U-Boot] Nor Flash SST39VF6402B cfi compliant support
I Stefan. I did teh following upgrade of the fileyou suggestied to me.
#define SST39VF6402B0x236c
...
#ifdef CONFIG_SYS_FLASH_LEGACY_4Mx16
{
.mfr_id = (u16)SST_MANUFACT,
.dev_id = SST39VF6402B,
.name = SST 39VF6402B,
.uaddr = {
[1] = MTD_UADDR_0x0555_0x02AA /* x16 */
},
.DevSize= SIZE_4MiB,
.CmdSet = CFI_CMDSET_AMD_LEGACY,
.NumEraseRegions= 1,
.regions= {
ERASEINFO(0x1,128),
}
},
#endif
The flash works, but not properly.
My conention is A1 mcp Bus cocceted to A0 of flash chip to have 16 bit width
for data bus. The flash datasheet tells the flash os organized in 128 32kword
of
esare sectors. So I think my setting is not correct. Is it?
Thanks a lot and best regards
In data lunedì 19 luglio 2010 09:52:23, Stefan Roese ha scritto:
: Hi Fabio,
On Thursday 15 July 2010 11:55:17 Fabio Giovagnini wrote:
In my experience the SST39VF6402B has become full compliant with CFI mtd
interface just few linux kernel ago. In linux 2.6.17 it was not.
I'm developing on
U-Boot 2010.06-rc2-07985-g53f7677-dirty (lug 15 2010 - 11:41:21)
is it compliant with SST39VF6402B
Is among of you other people using on their own board such a flash?
No. I haven't used those SST parts for a long time. But I assume that its
still not 100% CFI compliant. But you can use the legacy infrastructure to
add support to it. Shouldn't be to difficult. Take a look at:
CONFIG_FLASH_CFI_LEGACY
and
drivers/mtd/jedec_flash.c
Cheers,
Stefan
--
DENX Software Engineering GmbH, MD: Wolfgang Denk Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-0 Fax: (+49)-8142-66989-80 Email: off...@denx.de
--
Fabio Giovagnini
Aurion s.r.l.
P.I e C.F.
00885711200
skype: aurion.giovagnini
Tel. +39.051.594.78.24
Cell. +39.335.83.50.919
www.aurion-tech.com
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Re: [U-Boot] Nor Flash SST39VF6402B cfi compliant support
On Monday 19 July 2010 11:04:34 Fabio Giovagnini wrote:
I Stefan. I did teh following upgrade of the fileyou suggestied to me.
#define SST39VF6402B 0x236c
...
#ifdef CONFIG_SYS_FLASH_LEGACY_4Mx16
{
.mfr_id = (u16)SST_MANUFACT,
.dev_id = SST39VF6402B,
.name = SST 39VF6402B,
.uaddr = {
[1] = MTD_UADDR_0x0555_0x02AA /* x16 */
},
.DevSize= SIZE_4MiB,
.CmdSet = CFI_CMDSET_AMD_LEGACY,
.NumEraseRegions= 1,
.regions= {
ERASEINFO(0x1,128),
}
},
#endif
The flash works, but not properly.
What's exactly not working?
My conention is A1 mcp Bus cocceted to A0 of flash chip to have 16 bit
width for data bus. The flash datasheet tells the flash os organized in
128 32kword of esare sectors. So I think my setting is not correct. Is it?
Could be. IIRC, then the SST parts have 2 different erase regions, the
normal ones and the smaller ones (4k???). Not sure which one is used by this
command set. I suggest you investigate here further.
Cheers,
Stefan
--
DENX Software Engineering GmbH, MD: Wolfgang Denk Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-0 Fax: (+49)-8142-66989-80 Email: off...@denx.de
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Re: [U-Boot] Nor Flash SST39VF6402B cfi compliant support
Hi Fabio, (please keep the list on Cc). On Monday 19 July 2010 11:27:50 Fabio Giovagnini wrote: I do not think so about teh different regons. I attach the datasheet I found on the net and I cannot find anythink about two different regions for SST39VF6402B Maybe I'm wrong. Yes, you are wrong. ;) The manual mentions block-erase (32k) and sector-erase (2k). Please check which one is used by the CFi commands right now. Cheers, Stefan -- DENX Software Engineering GmbH, MD: Wolfgang Denk Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-0 Fax: (+49)-8142-66989-80 Email: off...@denx.de ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
Re: [U-Boot] Nor Flash SST39VF6402B cfi compliant support
I supposed the list doesn't like the attachment. Anyway I understand, now. I'll make you know how I'll solve. Thanks a lot and best regards In data lunedì 19 luglio 2010 11:33:43, Stefan Roese ha scritto: : Hi Fabio, (please keep the list on Cc). On Monday 19 July 2010 11:27:50 Fabio Giovagnini wrote: I do not think so about teh different regons. I attach the datasheet I found on the net and I cannot find anythink about two different regions for SST39VF6402B Maybe I'm wrong. Yes, you are wrong. ;) The manual mentions block-erase (32k) and sector-erase (2k). Please check which one is used by the CFi commands right now. Cheers, Stefan -- DENX Software Engineering GmbH, MD: Wolfgang Denk Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-0 Fax: (+49)-8142-66989-80 Email: off...@denx.de -- Fabio Giovagnini Aurion s.r.l. P.I e C.F. 00885711200 skype: aurion.giovagnini Tel. +39.051.594.78.24 Cell. +39.335.83.50.919 www.aurion-tech.com ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
Re: [U-Boot] Nor Flash SST39VF6402B cfi compliant support
This is the rigth config for such a FLASH chip
#ifdef CONFIG_SYS_FLASH_LEGACY_4Mx16
{
.mfr_id = (u16)SST_MANUFACT,
.dev_id = SST39VF6402B,
.name = SST 39VF6402B,
.uaddr = {
[1] = MTD_UADDR_0x0555_0x02AA /* x16 */
},
.DevSize= SIZE_4MiB,
.CmdSet = CFI_CMDSET_AMD_LEGACY,
.NumEraseRegions= 1,
.regions= {
ERASEINFO(0x1,128),
}
},
#endif
Best regards and thanks a lot
In data lunedì 19 luglio 2010 12:26:32, Fabio Giovagnini ha scritto:
: I supposed the list doesn't like the attachment.
Anyway I understand, now.
I'll make you know how I'll solve.
Thanks a lot and best regards
In data lunedì 19 luglio 2010 11:33:43, Stefan Roese ha scritto:
: Hi Fabio,
(please keep the list on Cc).
On Monday 19 July 2010 11:27:50 Fabio Giovagnini wrote:
I do not think so about teh different regons.
I attach the datasheet I found on the net and I cannot find anythink
about two different regions for
SST39VF6402B
Maybe I'm wrong.
Yes, you are wrong. ;) The manual mentions block-erase (32k) and
sector-erase (2k). Please check which one is used by the CFi commands
right now.
Cheers,
Stefan
--
DENX Software Engineering GmbH, MD: Wolfgang Denk Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-0 Fax: (+49)-8142-66989-80 Email: off...@denx.de
--
Fabio Giovagnini
Aurion s.r.l.
P.I e C.F.
00885711200
skype: aurion.giovagnini
Tel. +39.051.594.78.24
Cell. +39.335.83.50.919
www.aurion-tech.com
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Re: [U-Boot] Nor Flash SST39VF6402B cfi compliant support
On Monday 19 July 2010 15:57:09 Fabio Giovagnini wrote:
This is the rigth config for such a FLASH chip
#ifdef CONFIG_SYS_FLASH_LEGACY_4Mx16
{
.mfr_id = (u16)SST_MANUFACT,
.dev_id = SST39VF6402B,
.name = SST 39VF6402B,
.uaddr = {
[1] = MTD_UADDR_0x0555_0x02AA /* x16 */
},
.DevSize= SIZE_4MiB,
.CmdSet = CFI_CMDSET_AMD_LEGACY,
.NumEraseRegions= 1,
.regions= {
ERASEINFO(0x1,128),
}
},
#endif
Best regards and thanks a lot
So you've got it working. Good. Please submit a proper patch with this SST
flash support. Thanks.
Cheers,
Stefan
--
DENX Software Engineering GmbH, MD: Wolfgang Denk Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-0 Fax: (+49)-8142-66989-80 Email: off...@denx.de
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Re: [U-Boot] Nor Flash SST39VF6402B cfi compliant support
Ok
Cheers
In data lunedì 19 luglio 2010 16:19:23, Stefan Roese ha scritto:
: On Monday 19 July 2010 15:57:09 Fabio Giovagnini wrote:
This is the rigth config for such a FLASH chip
#ifdef CONFIG_SYS_FLASH_LEGACY_4Mx16
{
.mfr_id = (u16)SST_MANUFACT,
.dev_id = SST39VF6402B,
.name = SST 39VF6402B,
.uaddr = {
[1] = MTD_UADDR_0x0555_0x02AA /* x16 */
},
.DevSize= SIZE_4MiB,
.CmdSet = CFI_CMDSET_AMD_LEGACY,
.NumEraseRegions= 1,
.regions= {
ERASEINFO(0x1,128),
}
},
#endif
Best regards and thanks a lot
So you've got it working. Good. Please submit a proper patch with this SST
flash support. Thanks.
Cheers,
Stefan
--
DENX Software Engineering GmbH, MD: Wolfgang Denk Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-0 Fax: (+49)-8142-66989-80 Email: off...@denx.de
--
Fabio Giovagnini
Aurion s.r.l.
P.I e C.F.
00885711200
skype: aurion.giovagnini
Tel. +39.051.594.78.24
Cell. +39.335.83.50.919
www.aurion-tech.com
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