On 03/25/2014 07:27 PM, Rajesh Mallah wrote:
Hi ,
i am using tinymembench to bench mark 2 A20 based 1GB boards
MELE finished in 6mins and the
noname one finishes in 12mins.
pls tell how to systematically debug the issue.
at least dram settings are same. where else should i see?
The mbus can be different, this is a compiletime option for u-boot. Then
again, mbus changing might not work on a10 iirc.
But try using the same bootloader for a fair comparison ...
Olliver
MELE:
root@ltspmele:~# ./a10-meminfo-static
dram_clk = 408
dram_type = 3
dram_rank_num = 1
dram_chip_density = 4096
dram_io_width = 16
dram_bus_width = 32
dram_cas = 9
dram_zq = 0x7f
dram_odt_en = 0
dram_tpr0 = 0x42d899b7
dram_tpr1 = 0xa090
dram_tpr2 = 0x22a00
dram_tpr3 = 0x0
dram_emr1 = 0x4
dram_emr2 = 0x10
NONAME:
root@ltspenjoy:~# ./a10-meminfo-static
dram_clk = 408
dram_type = 3
dram_rank_num = 1
dram_chip_density = 4096
dram_io_width = 16
dram_bus_width = 32
dram_cas = 9
dram_zq = 0x79
dram_odt_en = 0
dram_tpr0 = 0x42d899b7
dram_tpr1 = 0xa090
dram_tpr2 = 0x22a00
dram_tpr3 = 0x0
dram_emr1 = 0x4
dram_emr2 = 0x10
dram_emr3 = 0x0
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