Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1558251

Re: eMMC boot problem: switch to bus width 8 ddr failed

From Ulf Hansson <ulf.hansson@linaro.org>
Newsgroups linux.kernel
Subject Re: eMMC boot problem: switch to bus width 8 ddr failed
Date 2017-01-13 12:30 +0100
Message-ID <sZ8ds-dR-21@gated-at.bofh.it> (permalink)
References (1 earlier) <sWsBH-3nj-9@gated-at.bofh.it> <sWF5U-3ZI-33@gated-at.bofh.it> <sYQTg-6jV-21@gated-at.bofh.it> <sYZDb-3oM-1@gated-at.bofh.it> <sZ0zg-46z-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw

[...]

> Hi Ulf and Shawn,
>
> Aisheng and I debug this issue these days, and we find the root cause. There are two things
> to describe.
>
> 1) voltage switch issue.  The properity "no-1-8-v" do not work for  MMC_TIMING_MMC_DDR52.
> This is another bug, we need to fix, but has no relation with the current bug.

I am working on a patch which invents MMC_CAP_3_3V_DDR and which has a
corresponding DT binding "mmc-ddr-3_3v".
Give me a day or so, then I will post it.

Likely it should help to resolve your issue, don't you think?

[...]

Kind regards
Uffe

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

eMMC boot problem: switch to bus width 8 ddr failed Clemens Gruber <clemens.gruber@pqgruber.com> - 2017-01-06 01:50 +0100
  Re: eMMC boot problem: switch to bus width 8 ddr failed Shawn Lin <shawn.lin@rock-chips.com> - 2017-01-06 03:40 +0100
    Re: eMMC boot problem: switch to bus width 8 ddr failed Clemens Gruber <clemens.gruber@pqgruber.com> - 2017-01-06 17:00 +0100
      Re: eMMC boot problem: switch to bus width 8 ddr failed Shawn Lin <shawn.lin@rock-chips.com> - 2017-01-09 08:20 +0100
        RE: eMMC boot problem: switch to bus width 8 ddr failed Bough Chen <haibo.chen@nxp.com> - 2017-01-10 09:40 +0100
      Re: eMMC boot problem: switch to bus width 8 ddr failed Ulf Hansson <ulf.hansson@linaro.org> - 2017-01-12 18:00 +0100
        Re: eMMC boot problem: switch to bus width 8 ddr failed Shawn Lin <shawn.lin@rock-chips.com> - 2017-01-13 03:20 +0100
          RE: eMMC boot problem: switch to bus width 8 ddr failed Bough Chen <haibo.chen@nxp.com> - 2017-01-13 04:20 +0100
            Re: eMMC boot problem: switch to bus width 8 ddr failed Shawn Lin <shawn.lin@rock-chips.com> - 2017-01-13 05:10 +0100
              Re: eMMC boot problem: switch to bus width 8 ddr failed Dong Aisheng <dongas86@gmail.com> - 2017-01-13 05:50 +0100
            Re: eMMC boot problem: switch to bus width 8 ddr failed Dong Aisheng <dongas86@gmail.com> - 2017-01-13 05:50 +0100
              Re: eMMC boot problem: switch to bus width 8 ddr failed Ulf Hansson <ulf.hansson@linaro.org> - 2017-01-13 12:20 +0100
            Re: eMMC boot problem: switch to bus width 8 ddr failed Ulf Hansson <ulf.hansson@linaro.org> - 2017-01-13 12:30 +0100
              RE: eMMC boot problem: switch to bus width 8 ddr failed Bough Chen <haibo.chen@nxp.com> - 2017-01-16 04:20 +0100
  Re: eMMC boot problem: switch to bus width 8 ddr failed Shawn Lin <shawn.lin@rock-chips.com> - 2017-01-06 04:10 +0100
    Re: eMMC boot problem: switch to bus width 8 ddr failed Clemens Gruber <clemens.gruber@pqgruber.com> - 2017-01-06 17:10 +0100
      Re: eMMC boot problem: switch to bus width 8 ddr failed Shawn Lin <shawn.lin@rock-chips.com> - 2017-01-09 08:40 +0100
      Re: eMMC boot problem: switch to bus width 8 ddr failed Jagan Teki <jagan@openedev.com> - 2017-01-09 23:30 +0100
        Re: eMMC boot problem: switch to bus width 8 ddr failed Shawn Lin <shawn.lin@rock-chips.com> - 2017-01-10 02:10 +0100
        Re: eMMC boot problem: switch to bus width 8 ddr failed Dong Aisheng <dongas86@gmail.com> - 2017-01-10 16:30 +0100
  Re: eMMC boot problem: switch to bus width 8 ddr failed Dong Aisheng <dongas86@gmail.com> - 2017-01-10 16:30 +0100

csiph-web