On Sat, 11 Jan 2014 06:42:54 -0800 (PST) [email protected] wrote: > With default manufacturer settings, i have no success with gcc > compilation in Gentoo.
Well, you can't claim that these are the "default manufacturer settings" when you are seriously overclocking your hardware. > All works fine except GCC compilation (allways failed with > different errors). But with DRAM settings from A20 (even > overclocked to 480) i have it compiled last night without > errors . Now you have a borderline unstable configuration. Congratulations with the GCC success, but nobody knows what and when is going to break next. > Machine - Mele A100 (A10 \ 512) , CPU-1200, DRAM-480. The nominal maximum clock frequency of Allwinner-A10 CPU is 1008MHz. And so far I have not heard of any successful overclocking higher than 1.15GHz. Your posts are just confirming this. Do you really need something like extra ~20% of performance that much? For Gentoo I would just suggest to buy some other quad-core ARM Cortex-A9 or Cortex-A15 board and use it as a build machine. > Gcc compilation takes 410 minutes . > > It seems that DRAM settings from A20 works more stable. > > .clock = 480, > .type = 3, > .rank_num = 1, > .density = 1024, > .io_width = 8, > .bus_width = 32, > .cas = 9, > .zq = 0x7f, > .odt_en = 0, > .size = 512, > .tpr0 = 0x42d899b7, > .tpr1 = 0xa090, > .tpr2 = 0x22a00, > .tpr3 = 0x0, > .tpr4 = 0x1, > .tpr5 = 0x0, > .emr1 = 0x4, > .emr2 = 0x10, > .emr3 = 0x0, -- Best regards, Siarhei Siamashka -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
