Re: [U-Boot] JFFS2 with NAND flash is very SLOW ...
Dear Pierre,
It works... but I have a very big problem : it's very very slow!!!! How can I decrease the time to load the kernel image? I try with u-boot 1.3.3, 1.3.4 and 2009.03 but the problem is always present...
I have tried to boot from nand with 1.3.4 and 2009.03. I can tell you that 2009.03 is much faster then 1.3.4 to boot from a formatted JFFS2 nand.
Can you help me please?
What is the size of the partition used to store the kernel? I suggest to use a small partition to store the kernel (5M by exemple something like 10M if you have an initramfs). You should have something like this:
MTD1 u-boot 2M MTD2 kernel 5M MTD3 content remainingM
Sylvain Cote
_______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot This electronic message may contain proprietary and confidential information of Verint Systems Inc., its affiliates and/or subsidiaries. The information is intended to be for the use of the individual(s) or entity(ies) named above. If you are not the intended recipient (or authorized to receive this e-mail for the intended recipient), you may not use, copy, disclose or distribute to anyone this message or any information contained in this message. If you have received this electronic message in error, please notify us by replying to this e-mail.
In my side: MTD0 (720kB): U-boot MTD1 (80kB) : env. Variables MTD2 (12MB) : kernel + initramfs MTD3 (50MB) : rootfs
If it exists a difference between 2009.03 and 1.3.3 it is not sufficient. It is very slow in both versions. It takes more than 1 minutes to obtain the result of "fsinfo" command !!!
Thanks for your help,
Pierre
-----Message d'origine----- De : u-boot-bounces@lists.denx.de [mailto:u-boot-bounces@lists.denx.de] De la part de Cote, Sylvain Envoyé : mardi 2 juin 2009 14:22 À : Pierre Savary; u-boot-users@lists.sourceforge.net; u-boot@lists.denx.de Objet : Re: [U-Boot] JFFS2 with NAND flash is very SLOW ...
Dear Pierre,
It works... but I have a very big problem : it's very very slow!!!! How
can
I decrease the time to load the kernel image? I try with u-boot 1.3.3, 1.3.4 and 2009.03 but the problem is always present...
I have tried to boot from nand with 1.3.4 and 2009.03. I can tell you that 2009.03 is much faster then 1.3.4 to boot from a formatted JFFS2 nand.
Can you help me please?
What is the size of the partition used to store the kernel? I suggest to use a small partition to store the kernel (5M by exemple something like 10M if you have an initramfs). You should have something like this:
MTD1 u-boot 2M MTD2 kernel 5M MTD3 content remainingM
Sylvain Cote
_______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot This electronic message may contain proprietary and confidential information of Verint Systems Inc., its affiliates and/or subsidiaries. The information is intended to be for the use of the individual(s) or entity(ies) named above. If you are not the intended recipient (or authorized to receive this e-mail for the intended recipient), you may not use, copy, disclose or distribute to anyone this message or any information contained in this message. If you have received this electronic message in error, please notify us by replying to this e-mail.
_______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
participants (2)
-
Cote, Sylvain -
Pierre Savary