07:17 <junari> jernej: I meant that in the h616_ddr3 mentions the JEDEC specifications. And maybe I should first find these specifications for the LPDDR3 memory, find the datasheet, and not use boot0 reverse engineering

07:18 <junari> I haven't run into DRAM timings yet

07:21 <junari> apritzel: my tvbox needs voltage adjustment for RAM. Someone is adding AXP313 support to the u-boot?

09:20 <warpme> apritzel: for axp313 in uboot - you may look at: https://github.com/warpme/minimyth2/blob/master/script/bootloaders/u-boot-h616/files/0010-sunxi-add-support-for-AXP313-PMIC.patch

13:34 <apritzel> warpme: something like that, though this whole sunxi_board_init() function is pretty horrible, and only seems to get worse. I rewrote this the other day, without #ifdefs, so this would need to go first.

13:37 <apritzel> junari_: I didn't have much luck so far with directly adopting official JEDEC timings (except for the much simpler F1C100s). I guess some other parameters are not set up correctly, so AW just went on with some values that work (TM).

13:38 <apritzel> junari_: what you should do instead is to calculate *back* the current cycle counts into nanoseconds, then use that.

13:39 <apritzel> Then we can have a look what is JEDEC compliant, and what is not. See h6_ddr3_1333.c for an example.

13:42 <apritzel> junari: this is one of the better cases, here the JEDEC timings actually worked: https://github.com/apritzel/u-boot/blob/suniv-dram-WIP/arch/arm/mach-sunxi/dram_suniv.c#L317-L371

13:47 <junari> apritzel: I think I understand in general. Will try in the next few days

14:11 <apritzel> junari: thanks!

14:57 <warpme> junari: i just returned back from few days out of home and see some Qs in irc logs. Answering Q regarding lpddr3 code in uboot: i'm bit loaded with bug fixing of my 2 distros - so i'm a bit low with time to work on lpddr3 in uboot - so pls go ahead with uboot