public inbox for u-boot@lists.denx.de
 help / color / mirror / Atom feed
From: Becky Bruce <beckyb@kernel.crashing.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v2 0/2] Fix TQM8560 DDR boot issue
Date: Mon, 18 Jul 2011 18:49:14 -0500	[thread overview]
Message-ID: <13110329563254-git-send-email-beckyb@kernel.crashing.org> (raw)


Series to fix the TQM85xx issue reported by Wolfgang.... the problem
turned out to be that those boards use get_ram_size(), which requires
that a TLB entry be set up for the DDR region.  My earlier patches
changed the way this was done and broke this.

I've created a new function, clear_ddr_tlbs(), so that there is now a
setup_ddr_tlbs() and a matching clear_ddr_tlbs() that boards can use
if they need to temporarily set up a TLB entry for this purpose.  The
tqm85xx ddr init code now uses this and the board is able to boot.

NOTE: There was another patch in this series that changed some include
logic in the TQM85xx.h header file.  I have dropped that patch as it
was screwed up and not needed.

Cheers,
Becky

 arch/powerpc/cpu/mpc85xx/cpu.c |   14 +++-----------
 arch/powerpc/cpu/mpc85xx/tlb.c |   29 +++++++++++++++++++++++++++++
 arch/powerpc/include/asm/mmu.h |    1 +
 board/tqc/tqm85xx/sdram.c      |    7 +++++++
 include/configs/TQM85xx.h      |    6 ++++++
 5 files changed, 46 insertions(+), 11 deletions(-)

             reply	other threads:[~2011-07-18 23:49 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-18 23:49 Becky Bruce [this message]
2011-07-18 23:49 ` [U-Boot] [PATCH V2 1/2] powerpc/mpc85xx: Add clear_ddr_tlbs function Becky Bruce
2011-07-18 23:49   ` [U-Boot] [PATCH V2 2/2] board/tqm85xx: Create and tear down TLB for get_ram_size() Becky Bruce
2011-07-22  6:55     ` Kumar Gala
2011-07-25 11:12     ` Wolfgang Denk
2011-07-22  6:54   ` [U-Boot] [PATCH V2 1/2] powerpc/mpc85xx: Add clear_ddr_tlbs function Kumar Gala
2011-07-25 11:11   ` Wolfgang Denk

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=13110329563254-git-send-email-beckyb@kernel.crashing.org \
    --to=beckyb@kernel.crashing.org \
    --cc=u-boot@lists.denx.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox