Hi Morimoto-san, On Wed, Aug 31, 2016 at 8:20 AM, Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx> wrote: >> > I noticed that Lager "ES3.0" board can't boot on this and previous -rc2 branch. >> > In my and Shimoda-san's check, "ES2.0" seems have no problem. >> >> I understand the issue now. It is not about ES3.0 vs. ES2.0, it is about >> cold-boot vs. warm-boot. I remembered the DA9xxx interrupt storm >> problems we had, and voila, I could reproduce the lockup on ES2.0 here, >> but you need to cold-boot and have the da9xxx drivers enabled. > > It seems lager board has 2 type of DA9xxx chip, type A, and type B. > We don't know which chip your / my board has. > > My *current* Lager board has no issue on cold / warm boot. > Magnus has my previous Lager board, so I can't try it today. > I think my current board and previous board have different type of chip. > Magnus will bring me my previous board tomorrow, so I will check it, > and try your solution. The revision doesn't seem to be printed on the chip package, but it is identified by the da9063 driver (CONFIG_REGULATOR_DA9063=y). My Koelsch has: da9063 6-0058: Device detected (chip-ID: 0x61, var-ID: 0x30) which corresponds to PMIC_DA9063_AD. Magnus' Lager (remote access) has the same version. (after adding the missing pieces to DT) Magnus's Gose has: da9063 6-0058: Device detected (chip-ID: 0x61, var-ID: 0x50) which corresponds to PMIC_DA9063_BB. Which revision do you have? Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds