how to increase the speed of "nand read" in the u-boot

fly100

hello, I am using the u-boot.2011.06. I use the "nand read" commond to read the file in the nand, but the speed is so slow. reading a 1M file used8s, how to raise the speed? thanks

over 10 years ago

0 Biser Gatchev-XID over 10 years ago

TI__Guru**** 393215 points

Hi,

Please read this wiki: http://processors.wiki.ti.com/index.php/Sitara_Linux_Training:_Boot_Time_Reduction

0 fly100 over 10 years ago in reply to Biser Gatchev-XID

Intellectual 620 points

thanks，I had seen this wiki. It doesn't has the specific content about increasing the speed of "nand read" command.

0 Biser Gatchev-XID over 10 years ago in reply to fly100

TI__Guru**** 393215 points

The other thing that you can try is to tune the GPMC timings. These are contained in the GPMC_CONFIG[7:1]_0 registers. There is no tutorial for this, you will need to refer to section 7.1 in the AM335X TRM Rev. K and to the NAND datasheet.

0 fly100 over 10 years ago in reply to Biser Gatchev-XID

Intellectual 620 points

thanks, I will try

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how to increase the speed of "nand read" in the u-boot