[U-Boot] MTD devices emulation driver (gluebi) support

Hi,
I want to read a jffs2 file system over ubi from uboot.
From ubi.h, I found the CONFIG_MTD_UBI_GLUEBI define to allow this functionality (I think) :
/* gluebi.c */ #ifdef CONFIG_MTD_UBI_GLUEBI ....
However, when I set this define, after compilation, I have errors links about gluebi functions :
uboot/common/cmd_ubi.c:293: undefined reference to `ubi_gluebi_updated'
And in fact, after search, I didn't find gluebi.c file in uboot.
I use the U-Boot 2015.01 version. When I look the last release, I didn't find gluebi.c too.
Some one can tell me more about that ? How is it possible to read jffs2 (or squashfs) from uboot ?
thanks !
Manuel
________________________________ Eaton Industries (France) S.A.S ~ Siège social: 110 Rue Blaise Pascal, Immeuble Le Viséo - Bâtiment A Innovallée, 38330, Montbonnot-St.-Martin, France ~ Lieu d'enregistrement au registre du commerce: Grenoble ~ Numéro d'enregistrement: 509 653 176 ~ Capital social souscrit et liberé:EUR 16215441 ~ Numéro de TVA: FR47509653176?
________________________________

Hello Manuel,
Am 06.04.2017 um 10:36 schrieb ManuelCurcio@Eaton.com:
Hi,
I want to read a jffs2 file system over ubi from uboot. From ubi.h, I found the CONFIG_MTD_UBI_GLUEBI define to allow this functionality (I think) :
/* gluebi.c */ #ifdef CONFIG_MTD_UBI_GLUEBI ....
However, when I set this define, after compilation, I have errors links about gluebi functions :
uboot/common/cmd_ubi.c:293: undefined reference to `ubi_gluebi_updated'
And in fact, after search, I didn't find gluebi.c file in uboot.
I use the U-Boot 2015.01 version. When I look the last release, I didn't find gluebi.c too.
Some one can tell me more about that ? How is it possible to read jffs2 (or squashfs) from uboot ?
We use the UBI/UBIFS sources from linux, so this part cames from linux. And as fas as I know, nobody has tried to use CONFIG_MTD_UBI_GLUEBI in u-boot yet, so if you want to do this, you have to dig into this part deeper. Patches are welcome ;-)
bye, Heiko
thanks !
Manuel
Eaton Industries (France) S.A.S ~ Siège social: 110 Rue Blaise Pascal, Immeuble Le Viséo - Bâtiment A Innovallée, 38330, Montbonnot-St.-Martin, France ~ Lieu d'enregistrement au registre du commerce: Grenoble ~ Numéro d'enregistrement: 509 653 176 ~ Capital social souscrit et liberé:EUR 16215441 ~ Numéro de TVA: FR47509653176?
U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot

Hello
Thanks for the answer. Hi
Thanks for the answer. I would like ... but I think I'm going to a raw data storage in a ubi volume instead of a little jffs2 file system :( (my need it is just to store some bytes of data) ...
Manuel
----------------------------- Eaton Industries (France) S.A.S ~ Siège social: 110 Rue Blaise Pascal, Immeuble Le Viséo - Bâtiment A Innovallée, 38330, Montbonnot-St.-Martin, France ~ Lieu d'enregistrement au registre du commerce: Grenoble ~ Numéro d'enregistrement: 509 653 176 ~ Capital social souscrit et liberé:€ 16215441 ~ Numéro de TVA: FR47509653176 -----------------------------
________________________________________ De : Heiko Schocher [hs@denx.de] Envoyé : vendredi 7 avril 2017 13:02 À : Curcio, Manuel Cc : u-boot@lists.denx.de Objet : Re: [U-Boot] MTD devices emulation driver (gluebi) support
Hello Manuel,
Am 06.04.2017 um 10:36 schrieb ManuelCurcio@Eaton.com:
Hi,
I want to read a jffs2 file system over ubi from uboot. From ubi.h, I found the CONFIG_MTD_UBI_GLUEBI define to allow this functionality (I think) :
/* gluebi.c */ #ifdef CONFIG_MTD_UBI_GLUEBI ....
However, when I set this define, after compilation, I have errors links about gluebi functions :
uboot/common/cmd_ubi.c:293: undefined reference to `ubi_gluebi_updated'
And in fact, after search, I didn't find gluebi.c file in uboot.
I use the U-Boot 2015.01 version. When I look the last release, I didn't find gluebi.c too.
Some one can tell me more about that ? How is it possible to read jffs2 (or squashfs) from uboot ?
We use the UBI/UBIFS sources from linux, so this part cames from linux. And as fas as I know, nobody has tried to use CONFIG_MTD_UBI_GLUEBI in u-boot yet, so if you want to do this, you have to dig into this part deeper. Patches are welcome ;-)
bye, Heiko
thanks !
Manuel
Eaton Industries (France) S.A.S ~ Siège social: 110 Rue Blaise Pascal, Immeuble Le Viséo - Bâtiment A Innovallée, 38330, Montbonnot-St.-Martin, France ~ Lieu d'enregistrement au registre du commerce: Grenoble ~ Numéro d'enregistrement: 509 653 176 ~ Capital social souscrit et liberé:EUR 16215441 ~ Numéro de TVA: FR47509653176?
U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
-- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

Hello Manuel,
Am 11.04.2017 um 09:20 schrieb ManuelCurcio@Eaton.com:
Hello
Thanks for the answer. Hi
Thanks for the answer. I would like ... but I think I'm going to a raw data storage in a ubi volume instead of a little jffs2 file system :( (my need it is just to store some bytes of data) ...
Ok ... or you try to use UBIFS ?
bye, Heiko
Manuel
Eaton Industries (France) S.A.S ~ Siège social: 110 Rue Blaise Pascal, Immeuble Le Viséo - Bâtiment A Innovallée, 38330, Montbonnot-St.-Martin, France ~ Lieu d'enregistrement au registre du commerce: Grenoble ~ Numéro d'enregistrement: 509 653 176 ~ Capital social souscrit et liberé:€ 16215441 ~ Numéro de TVA: FR47509653176
De : Heiko Schocher [hs@denx.de] Envoyé : vendredi 7 avril 2017 13:02 À : Curcio, Manuel Cc : u-boot@lists.denx.de Objet : Re: [U-Boot] MTD devices emulation driver (gluebi) support
Hello Manuel,
Am 06.04.2017 um 10:36 schrieb ManuelCurcio@Eaton.com:
Hi,
I want to read a jffs2 file system over ubi from uboot. From ubi.h, I found the CONFIG_MTD_UBI_GLUEBI define to allow this functionality (I think) :
/* gluebi.c */ #ifdef CONFIG_MTD_UBI_GLUEBI ....
However, when I set this define, after compilation, I have errors links about gluebi functions :
uboot/common/cmd_ubi.c:293: undefined reference to `ubi_gluebi_updated'
And in fact, after search, I didn't find gluebi.c file in uboot.
I use the U-Boot 2015.01 version. When I look the last release, I didn't find gluebi.c too.
Some one can tell me more about that ? How is it possible to read jffs2 (or squashfs) from uboot ?
We use the UBI/UBIFS sources from linux, so this part cames from linux. And as fas as I know, nobody has tried to use CONFIG_MTD_UBI_GLUEBI in u-boot yet, so if you want to do this, you have to dig into this part deeper. Patches are welcome ;-)
bye, Heiko
thanks !
Manuel
Eaton Industries (France) S.A.S ~ Siège social: 110 Rue Blaise Pascal, Immeuble Le Viséo - Bâtiment A Innovallée, 38330, Montbonnot-St.-Martin, France ~ Lieu d'enregistrement au registre du commerce: Grenoble ~ Numéro d'enregistrement: 509 653 176 ~ Capital social souscrit et liberé:EUR 16215441 ~ Numéro de TVA: FR47509653176?
U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
-- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

I tried to use ubifs. However, I just need of a space storage for three files with a total size of 500 bytes. From theses three files, the UBIFS generated a 1.8 MegaBytes file. The ubifs file system mounted took 7 Megabytes just for 500 bytes ! JFFS2 over ubi requires "only" 4 LEB minimum, so for my 500 bytes, jffs2 requires 4 * 128 kB == 512 kBytes for my nand.
----------------------------- Eaton Industries (France) S.A.S ~ Siège social: 110 Rue Blaise Pascal, Immeuble Le Viséo - Bâtiment A Innovallée, 38330, Montbonnot-St.-Martin, France ~ Lieu d'enregistrement au registre du commerce: Grenoble ~ Numéro d'enregistrement: 509 653 176 ~ Capital social souscrit et liberé:€ 16215441 ~ Numéro de TVA: FR47509653176 -----------------------------
-----Original Message----- From: Heiko Schocher [mailto:hs@denx.de] Sent: mardi 11 avril 2017 13:43 To: Curcio, Manuel Cc: u-boot@lists.denx.de Subject: Re: [U-Boot] MTD devices emulation driver (gluebi) support
Hello Manuel,
Am 11.04.2017 um 09:20 schrieb ManuelCurcio@Eaton.com:
Hello
Thanks for the answer. Hi
Thanks for the answer. I would like ... but I think I'm going to a raw data storage in a ubi volume instead of a little jffs2 file system :( (my need it is just to store some bytes of data) ...
Ok ... or you try to use UBIFS ?
bye, Heiko
Manuel
Eaton Industries (France) S.A.S ~ Siège social: 110 Rue Blaise Pascal, Immeuble Le Viséo - Bâtiment A Innovallée, 38330, Montbonnot-St.-Martin, France ~ Lieu d'enregistrement au registre du commerce: Grenoble ~ Numéro d'enregistrement: 509 653 176 ~ Capital social souscrit et liberé:€ 16215441 ~ Numéro de TVA: FR47509653176
De : Heiko Schocher [hs@denx.de] Envoyé : vendredi 7 avril 2017 13:02 À : Curcio, Manuel Cc : u-boot@lists.denx.de Objet : Re: [U-Boot] MTD devices emulation driver (gluebi) support
Hello Manuel,
Am 06.04.2017 um 10:36 schrieb ManuelCurcio@Eaton.com:
Hi,
I want to read a jffs2 file system over ubi from uboot. From ubi.h, I found the CONFIG_MTD_UBI_GLUEBI define to allow this functionality (I think) :
/* gluebi.c */ #ifdef CONFIG_MTD_UBI_GLUEBI ....
However, when I set this define, after compilation, I have errors links about gluebi functions :
uboot/common/cmd_ubi.c:293: undefined reference to `ubi_gluebi_updated'
And in fact, after search, I didn't find gluebi.c file in uboot.
I use the U-Boot 2015.01 version. When I look the last release, I didn't find gluebi.c too.
Some one can tell me more about that ? How is it possible to read jffs2 (or squashfs) from uboot ?
We use the UBI/UBIFS sources from linux, so this part cames from linux. And as fas as I know, nobody has tried to use CONFIG_MTD_UBI_GLUEBI in u-boot yet, so if you want to do this, you have to dig into this part deeper. Patches are welcome ;-)
bye, Heiko
thanks !
Manuel
Eaton Industries (France) S.A.S ~ Siège social: 110 Rue Blaise Pascal, Immeuble Le Viséo - Bâtiment A Innovallée, 38330, Montbonnot-St.-Martin, France ~ Lieu d'enregistrement au registre du commerce: Grenoble ~ Numéro d'enregistrement: 509 653 176 ~ Capital social souscrit et liberé:EUR 16215441 ~ Numéro de TVA: FR47509653176?
U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
-- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
participants (2)
-
Heiko Schocher
-
ManuelCurcio@Eaton.com