It has been confirmed that a substantial percentage of cubieboard2 and cubietruck users are having stability issues. These issues are caused by having various voltages optimistically configured way too low. Because each unit has its own tolerances, not everyone can easily reproduce these problems.
To address the issue, we take the updated settings from: https://github.com/cubieboard/cubie_configs/tree/09e511721697/sysconfig/linux This repository is relevant because it is referenced from: http://docs.cubieboard.org/tutorials/ct1/development/compiling_latest_kernel_for_cubietruck_cubieboard3 Please note that there is also a sunxi-boards repository fork at https://github.com/cubieboard (with bad settings) and this makes things more confusing than necessary. Signed-off-by: Siarhei Siamashka <siarhei.siamas...@gmail.com> --- sys_config/a20/cubieboard2.fex | 18 +++++++++--------- sys_config/a20/cubietruck.fex | 16 ++++++++-------- 2 files changed, 17 insertions(+), 17 deletions(-) diff --git a/sys_config/a20/cubieboard2.fex b/sys_config/a20/cubieboard2.fex index 1436df8..c8c9c74 100644 --- a/sys_config/a20/cubieboard2.fex +++ b/sys_config/a20/cubieboard2.fex @@ -1,14 +1,14 @@ [product] version = "100" -machine = "cubieboard" +machine = "cubieboard2" [platform] eraseflag = 0 [target] boot_clock = 912 -dcdc2_vol = 1400 -dcdc3_vol = 1250 +dcdc2_vol = 1450 +dcdc3_vol = 1300 ldo2_vol = 3000 ldo3_vol = 2800 ldo4_vol = 2800 @@ -956,20 +956,20 @@ key_max = 40 [dvfs_table] max_freq = 912000000 -min_freq = 400000000 +min_freq = 720000000 LV_count = 7 LV1_freq = 1008000000 LV1_volt = 1450 LV2_freq = 912000000 -LV2_volt = 1400 +LV2_volt = 1425 LV3_freq = 864000000 -LV3_volt = 1300 +LV3_volt = 1350 LV4_freq = 720000000 -LV4_volt = 1200 +LV4_volt = 1250 LV5_freq = 528000000 -LV5_volt = 1100 +LV5_volt = 1150 LV6_freq = 312000000 -LV6_volt = 1050 +LV6_volt = 1100 LV7_freq = 144000000 LV7_volt = 1050 diff --git a/sys_config/a20/cubietruck.fex b/sys_config/a20/cubietruck.fex index 00210e7..5d7f085 100644 --- a/sys_config/a20/cubietruck.fex +++ b/sys_config/a20/cubietruck.fex @@ -7,8 +7,8 @@ eraseflag = 0 [target] boot_clock = 912 -dcdc2_vol = 1400 -dcdc3_vol = 1250 +dcdc2_vol = 1450 +dcdc3_vol = 1300 ldo2_vol = 3000 ldo3_vol = 2800 ldo4_vol = 2800 @@ -943,20 +943,20 @@ key_max = 6 [dvfs_table] max_freq = 912000000 -min_freq = 60000000 +min_freq = 720000000 LV_count = 7 LV1_freq = 1008000000 LV1_volt = 1450 LV2_freq = 912000000 -LV2_volt = 1400 +LV2_volt = 1425 LV3_freq = 864000000 -LV3_volt = 1300 +LV3_volt = 1350 LV4_freq = 720000000 -LV4_volt = 1200 +LV4_volt = 1250 LV5_freq = 528000000 -LV5_volt = 1100 +LV5_volt = 1150 LV6_freq = 312000000 -LV6_volt = 1050 +LV6_volt = 1100 LV7_freq = 144000000 LV7_volt = 1050 -- 1.8.3.2 -- 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 linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.