about AM3517 LINUX PSP

Z-SEED

Hi,

Could somebody tell me the differences between am3517-linux-psp-04.02.00.07 and am3517-linux-psp-03.00.00.05, especially about NAND driver in uboot?

What I know is that: am3517-linux-psp-03.00.00.05 uses 'nandecc sw/hw', I need to use 'nandecc sw' to flash u-boot; am3517-linux-psp-04.02.00.07 uses 'nandecc sw/hw 2/hw 1/bch4_sw/bch8_sw', I could use 'nandecc hw 2' to flash u-boot. Is there any bug in NAND driver of am3517-linux-psp-03.00.00.05? Is 'nandecc hw 2' better than 'nandecc sw' when flashing u-boot?

over 9 years ago

0 Cvetolin Shulev-XID over 9 years ago

TI__Guru 65405 points

Hi,

You can find in the ../uboot/CHANGELOG file of the am3517-linux-psp-04.02.00.07 description of all changes related to the NAND driver in u-boot. The only commit related to the nandecc command and refers to the syntax of nandecc help output.

About the choice of the ecc mode hw or sw you can use each one of them. You can read some useful information about nandecc and its usage in uboot at the links below:

http://processors.wiki.ti.com/index.php/Error_Correction_User_Guide

http://processors.wiki.ti.com/index.php/AM335x_U-Boot_User%27s_Guide

Tsvetolin Shulev

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