[U-Boot] Error while Readin Flash Info(flinfo) in U-boot - Help

10 Mar 2012

Hi Stefan,
I am Balaji.  am using IMX6 base custom board. In my board am using S29GL01G NOR Flash to store u-boot and kernel. I understand from the data sheet this NOR Flash is CFI supported one. So i have added Configurations for CFI Flash driver.  Currently am loading the U-boot into DDR3 and able to excute U-boot test commands. When i put flinfo , am getting "missing or unknow flash type" and while loading the u-boot it is printing as " Unknown flash on BANK 1 - Size - 0MB". So am not sure what am missing here or i have to add anything extra in the config file. Please request you to check and provide your suggestion.
Thanks ,
ShivBalaji
________________________________________
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Today's Topics:
1. Re: [PATCH v8] usb: align buffers at cacheline (Marek Vasut)
   2. Re: [PATCH] PowerPC: enable the SATA for p1/p2 rdb-pc
      platform (Tabi Timur-B04825)
   3. Re: [PATCH 4/7] i.MX28: Enable additional DRAM address bits
      (Stefano Babic)
   4. Re: AVR32 status (Wolfgang Denk)
   5. Re: (no subject) (Simon Glass)
   6. Re: ubifsmount reports "Error reading superblock",        but linux
      can mount FS (Wolfgang Denk)
   7. A few things for the release? (Simon Glass)
   8. adding new command in u-boot (Haneef hawk21)
   9. Re: adding new command in u-boot (Anatolij Gustschin)
  10. [PATCH 2/2] omap3: fix NAND for tam3517 boards (Stefano Babic)
  11. [PATCH 1/2] omap3: fix NAND for mcx board (Stefano Babic)
  12. Re: [PATCH 1/2] omap3: fix NAND for mcx board (Tom Rini)
  13. Re: [PATCH 1/2] omap3: fix NAND for mcx board (Stefano Babic)
  14. Re: [PATCH 2/2] tegra: Enable pre-console putc() for Tegra
      boards (Stephen Warren)
  15. Re: A few things for the release? (Dirk Behme)
  16. Re: ubifsmount reports "Error reading superblock", but linux
      can mount FS (Alex Zeffertt)
  17. Re: [PATCH 2/2] tegra: Enable pre-console putc() for Tegra
      boards (Simon Glass)
  18. Re: [PATCH 2/2] tegra: Enable pre-console putc() for Tegra
      boards (Simon Glass)
  19. [PATCH v2 1/4] ns16550: Add function to drain serial output
      (Simon Glass)
  20. [PATCH v2 2/4] Enable printf() console if pre-console     putc()
      is available (Simon Glass)
  21. [PATCH v2 3/4] tegra: Implement pre-console putc() for fdt
      warning (Simon Glass)
  22. [PATCH v2 4/4] tegra: Enable pre-console putc() for Tegra
      boards (Simon Glass)
  23. Re: [PATCH v2 1/4] ns16550: Add function to drain serial
      output (Tom Warren)
  24. Re: [PATCH v2 1/4] ns16550: Add function to drain serial
      output (Stephen Warren)
  25. Re: [PATCH v2 1/4] ns16550: Add function to drain serial
      output (Simon Glass)
  26. Re: [PATCH v2 1/4] ns16550: Add function to drain serial
      output (Tom Warren)
  27. Re: [PATCH v2 1/4] ns16550: Add function to drain serial
      output (Simon Glass)
  28. Re: [PATCH v2 1/4] ns16550: Add function to drain serial
      output (Stephen Warren)
  29. pull request for u-boot-tegra/master (Tom Warren)
  30. Re: DEVELOPER's MEETING (Fabio Estevam)
  31. Re: [PATCH resend] ARMV7/Vexpress: add missing get_ticks()
      and get_tbclk() (Matt Waddel)
  32. Re: [PATCH v2 3/4] tegra: Implement pre-console putc() for
      fdt warning (Wolfgang Denk)
  33. Re: [PATCH v2 1/4] ns16550: Add function to drain serial
      output (Wolfgang Denk)
  34. Re: [PATCH v2 1/4] ns16550: Add function to drain serial
      output (Wolfgang Denk)
  35. Re: pull request for u-boot-tegra/master (Wolfgang Denk)
  36. Re: DEVELOPER's MEETING (Wolfgang Denk)
  37. Re: [PATCH] arm: Don't use printf() in SPL builds (Sughosh Ganu)
  38. Re: Does U-boot supports Spansion S29GL512P NOR Flash?
      (Balaji Sivakumar)
----------------------------------------------------------------------
Message: 1
Date: Fri, 9 Mar 2012 13:03:31 +0100
From: Marek Vasut marex@denx.de
Subject: Re: [U-Boot] [PATCH v8] usb: align buffers at cacheline
To: puneets puneets@nvidia.com
Cc: "u-boot@lists.denx.de" u-boot@lists.denx.de,      Tom Warren
        TWarren@nvidia.com, "trini@ti.com" trini@ti.com
Message-ID: 201203091303.31631.marex@denx.de
Content-Type: Text/Plain;  charset="us-ascii"
Dear puneets,
...
Hi Marek,
On Thursday 08 March 2012 07:42 PM, Marek Vasut wrote:
...
Dear puneets,
...
Hi Marek,
On Thursday 08 March 2012 03:36 AM, Marek Vasut wrote:
...
Dear puneets,
...
Hi Mike,
On Tuesday 06 March 2012 08:37 AM, Mike Frysinger wrote:
...

PGP Signed by an unknown key

On Monday 05 March 2012 09:46:21 Puneet Saxena wrote:
> As DMA expects the buffers to be equal and larger then
> cache lines, This aligns buffers at cacheline.
i don't think this statement is true.  DMA doesn't care about
alignment (well, some do, but it's not related to cache lines but
rather some other restriction in the peripheral DMA itself).  what
does matter is that cache operations operate on cache lines and not
individual bytes. hence the core arm code was updated to warn when
someone told it to invalidate X bytes but the hardware literally
could not, so it had to invalidate X + Y bytes.
Agreed, Will update the commit message in next patchset.
...
> --- a/drivers/usb/host/ehci-hcd.c
> +++ b/drivers/usb/host/ehci-hcd.c
>
>     static void flush_invalidate(u32 addr, int size, int flush)
>     {
>
> +      /*
> +       * Size is the bytes actually moved during transaction,
> +       * which may not equal to the cache line. This results
> +       * stop address passed for invalidating cache may not be
aligned.
...
...
...
...
> +       * Therfore making size as multiple of cache line size.
> +       */
> +      size = ALIGN(size, ARCH_DMA_MINALIGN);
> +
>
>        if (flush)
>
>                flush_dcache_range(addr, addr + size);
>
>        else
i think this is wrong and merely hides the errors from higher up
instead of fixing them.  the point of the warning was to tell you
that the code was invalidating *too many* bytes.  this code still
invalidates too many bytes without any justification as for why it's
OK to do here.  further, this code path only matters to the
invalidation logic, not the flush logic. -mike
The sole purpose of this patch to remove the warnings as start/stop
address sent for invalidating
is unaligned. Without this patch code works fine but with lots of
spew...Which we don't want and discussed
in earlier thread which Simon posted. Please have a look on following
link.
As I understood, you agree that we need to align start/stop buffer
address and also agree that
to align stop address we need to align size as start address is
already aligned.
Now, "why its OK to do here"?
We could have aligned the size in two places, cache_qtd() and
cache_qh() but then we need to place alignment check
at all the places where size is passed. So I thought better Aligning
at flush_invalidate() and "ALIGN" macro does not
increase the size if size is already aligned.
Actually I have to agree with Mike here. Can you please remove that
ALIGN() (and all others you might have added)? If it does spew, that's
ok and it tells us something is wrong in the USB core subsystem. Such
stuff can be fixed in subsequent patch.
Sorry, I could not understand "(and all others you might have added)".
Do you want me remove any HACK in the patch which is using ALIGN or
making stop address
No, only such hacks where it's certain they will either invalidate or
flush some areas that weren't allocated for them, like this ALIGN you
did here. This can cause trouble that will be very hard to find.
...
aligned? The patch has only the above line to make stop address align
and rest of the code makes
start address align. Just to confirm, you are fine with the start
address alignment code in the patch?
The start address alignment you do also aligns the end to the cacheline,
doesn't it? (at least that's what I believe the macro is supposed to
do).
Yes, start address alignment also aligns start address at the cache
line. So, removing
stop address alignment code as depicted above, should make this patch
acceptable?
Puneet, it's not a problem of acceptability, it's a problem of breaking uboot
;-) Acceptability goes only after it we are sure doesn't break anything. The
cache stuff is really fragile so we need to be very careful, please understand
and let's figure this out together, I feel we're really close.
And yes, I believe removing such dangerous ALIGN() calls will be the last fix
necessary, unless something other pops up.
Best regards,
Marek Vasut
------------------------------
Message: 2
Date: Fri, 9 Mar 2012 12:40:35 +0000
From: Tabi Timur-B04825 B04825@freescale.com
Subject: Re: [U-Boot] [PATCH] PowerPC: enable the SATA for p1/p2
        rdb-pc platform
To: Huang Changming-R66093 r66093@freescale.com
Cc: "u-boot@lists.denx.de" u-boot@lists.denx.de,      Andy Fleming
        afleming@gmail.com
Message-ID:
        CAOZdJXWKdgCPW_UDqP1qhBxVBikfR_2Uqkufu2_Q_f_0qnH9SQ@mail.gmail.com
Content-Type: text/plain; charset="iso-8859-1"
On Fri, Mar 9, 2012 at 1:54 AM,  Chang-Ming.Huang@freescale.com wrote:
...
-#define CONFIG_SATA_SIL3114
+#define CONFIG_SATA_SIL
This is not "enabling" SATA.  This is choosing the correct driver.
You can only use the word "enable" if the feature was intentionally
disabled before, e.g. because the driver did not exist yet.
Your patch description is fine.  The subject line, however, is wrong.
--
Timur Tabi
Linux kernel developer at Freescale
------------------------------
Message: 3
Date: Fri, 09 Mar 2012 14:39:29 +0100
From: Stefano Babic sbabic@denx.de
Subject: Re: [U-Boot] [PATCH 4/7] i.MX28: Enable additional DRAM
        address bits
To: Marek Vasut marex@denx.de
Cc: u-boot@lists.denx.de
Message-ID: 4F5A0811.8090506@denx.de
Content-Type: text/plain; charset=ISO-8859-1
On 26/02/2012 23:15, Marek Vasut wrote:
...
Signed-off-by: Marek Vasut marex@denx.de
Applied to u-boot-imx, thanks.
Best regards,
Stefano Babic
--
=====================================================================
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-0 Fax: +49-8142-66989-80  Email: office@denx.de
=====================================================================
------------------------------
Message: 4
Date: Fri, 09 Mar 2012 14:47:49 +0100
From: Wolfgang Denk wd@denx.de
Subject: Re: [U-Boot] AVR32 status
To: Andreas Bie?mann andreas.devel@googlemail.com
Cc: u-boot@lists.denx.de
Message-ID: 20120309134749.CAAF9202D70@gemini.denx.de
Content-Type: text/plain; charset=UTF-8
Dear Andreas,
In message 4F59BA55.9050306@googlemail.com you wrote:
...
There are two patches pending from Sven Schnelle since October last year:
http://patchwork.ozlabs.org/patch/120993/
http://patchwork.ozlabs.org/patch/120992/
Both are working and could go in 2012.0{3,4}. Wolfgang are you willing
to grab them for this release?
Yes, that's perfectly fine with me.
...
Both of them are delegated to Reinhard on patchwork. Could I take them
directly or is some administrative interaction necessary to mark them as
accepted?
You can reassign to yourself, or just apply directly. Patchwork does
not really care about assignments...
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
The universe does not have laws - it has habits, and  habits  can  be
broken.
------------------------------
Message: 5
Date: Fri, 9 Mar 2012 05:59:53 -0800
From: Simon Glass sjg@chromium.org
Subject: Re: [U-Boot] (no subject)
To: Wolfgang Denk wd@denx.de
Cc: u-boot@lists.denx.de
Message-ID:
        CAPnjgZ1Drbv8uDWjeDkXsaujPMNnwKMtb7JpCiEHArYOB6y=zQ@mail.gmail.com
Content-Type: text/plain; charset=ISO-8859-1
Hi Wolfgang,
On Thu, Mar 8, 2012 at 12:16 AM, Wolfgang Denk wd@denx.de wrote:
...
Dear Simon Glass,
In message CAPnjgZ2tGqTRfFOaKyySUrQxMO3_4qfX7ewg-XFUcuqZtP=6Ew@mail.gmail.com you wrote:
...
...
?01/10 Simon Glass ? ? ? ?[U-Boot] [PATCH v2 8/8] sandbox: Add > basic command line parsing
http://article.gmane.org/gmane.comp.boot-loaders.u-boot/122324
Mike expanded this one significantly - I just acked it. Might stretch
the definition of 'inside merge window'?
Initial patch was within merge window; we usually accapt updates, so
why not here.
OK. It will be good to have this in.
...
...
Yes I just cleaned up mine...it would be nice if you could select
multiple patches at the top level and perform actions on them.
See the "Create bundle" function - eventually this is what you are
looking for?
Yes I can create a bundle, just not sure how I can then mark
everything in the bundle as 'archived' or change its state.
Regards,
Simon
...
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, ? ? MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
A modem is a baudy house.
------------------------------
Message: 6
Date: Fri, 09 Mar 2012 15:02:16 +0100
From: Wolfgang Denk wd@denx.de
Subject: Re: [U-Boot] ubifsmount reports "Error reading superblock",
        but linux can mount FS
To: Alex Zeffertt azeffertt@cambridgesys.com
Cc: u-boot@lists.denx.de, Stefan Roese sr@denx.de
Message-ID: 20120309140216.E2949202D70@gemini.denx.de
Content-Type: text/plain; charset=UTF-8
Dear Alex,
In message CANNiwJKREXiOBfiA_1v_-QGMoV_A59Ce0ADcVfK1xLMFkReFgw@mail.gmail.com you wrote:
...
...
Can you please try out and test what happens when you increase the
size of the malloc arena?  "include/configs/openrd.h" includes
"include/configs/mv-common.h" which sets CONFIG_SYS_MALLOC_LEN to
1 MiB - try changing it to 4 MiB.
Thanks Wolfgang, that worked!  Is there any reason why you would not
set this variable to the maximum possible. ...
Define "maximum possible".  The more memory we reserve here, the less
will be available for loading Linux and root filesystem images and
such.  So it's always a compromize: make it as big as needed, but not
(much) bigger.
...
                                   ...  For example, is this

memory available to the kernel after it is booted?  ...
When the kernel boots, all of U-Boot is gone. The kernel has no idea
of how U-Boot used the memory; all such information is gone, too.
...
                                           ...  How do you know

how big this might need to be in order to mount a filesystem that
"needs recovery"?
I don't know of ways to determine this in advance.  Eventually all we
can do is thry what you did: increase the malloc arena when it turns
out to be too small.
If you are willing to invest a little more time, it would be
interesting to test how much memory is actually needed on your system.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
In the realm of scientific observation, luck is granted only to those
who are prepared.                                     - Louis Pasteur
------------------------------
Message: 7
Date: Fri, 9 Mar 2012 06:32:44 -0800
From: Simon Glass sjg@chromium.org
Subject: [U-Boot] A few things for the release?
To: U-Boot Mailing List u-boot@lists.denx.de
Message-ID:
        CAPnjgZ3J2Tpfa9=ftH_wS50jDsZdK404StC0aYMEfwqYuK3+gg@mail.gmail.com
Content-Type: text/plain; charset=ISO-8859-1
Hi,
I have a few more series that I hope will go in this time.
1. I think bootstage is ready
http://patchwork.ozlabs.org/bundle/sjg/bootstage/
2. The generic board init series needs some updates to create
asm/sections.h for each architecture. This changes quite a few
patches, plus there is one that I can drop since Mike fixed s520_timer
already. So I will resend the whole series today. The is enabled only
by a config option.
3. For generic relocation, there is the issue of creating
lib/membasic.c (which is safe I think, but changes things for
everyone) versus using -ffunction-sections and possibly breaking some
boards. The latter solution is probably preferred in the long term,
but I'm not sure if Albert is keep on this happening now. See here for
details:
http://patchwork.ozlabs.org/patch/142216/
Albert, can you please take a look?
4. I have created a bundle for the ARM link-script series as it is today:
http://patchwork.ozlabs.org/bundle/sjg/lds/
Albert you had some comments, the latest of which I answered here:
http://patchwork.ozlabs.org/patch/142254/
Regadrs,
Simon
------------------------------
Message: 8
Date: Fri, 9 Mar 2012 19:29:03 +0530
From: Haneef hawk21 haneef.hawk21@gmail.com
Subject: [U-Boot] adding new command in u-boot
To: u-boot@lists.denx.de
Message-ID:
        CAEwP+aEx15aZh2i2ye1C4gdsZKES_OBTitr6HoCbghUxV0EdKg@mail.gmail.com
Content-Type: text/plain; charset=ISO-8859-1
Hi,
I am trying to create a new command that would be used to do custom
tests like mm, md, mtest all at once by calling their do_** function.
So I tried to create a simple command initially to print some message
and print bdinfo in the hush:
I did the following
created a file in common/cmd_myprint.c
the file looks like this
#include <command.h>
#include <common.h>
int do_myprint(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
        printf("U-Boot Test");
        do_bdinfo(NULL, 0, 0, NULL);
        return 0;
}
U_BOOT_CMD(
        myprint,  1,      1,     do_myprint,
        "print message",
        ""
);
------------------------------
then i added this in makefile
as
COBJS-y += cmd_myprint.o
this got compiled without any problem and even  got the hush prompt
but when i gave help command i did not see my command listed there.
please help me in solving this issue.
Thanks,
haneef
------------------------------
Message: 9
Date: Fri, 9 Mar 2012 16:19:51 +0100
From: Anatolij Gustschin agust@denx.de
Subject: Re: [U-Boot] adding new command in u-boot
To: Haneef hawk21 haneef.hawk21@gmail.com
Cc: u-boot@lists.denx.de
Message-ID: 20120309161951.3fd9362c@wker
Content-Type: text/plain; charset=US-ASCII
Hi,
On Fri, 9 Mar 2012 19:29:03 +0530
Haneef hawk21 haneef.hawk21@gmail.com wrote:
...
Hi,
I am trying to create a new command that would be used to do custom
tests like mm, md, mtest all at once by calling their do_** function.
Can't you just put needed commands in a script and run it?
...
...
U_BOOT_CMD(
        myprint,  1,      1,     do_myprint,
        "print message",
        ""
);
...
...
this got compiled without any problem and even  got the hush prompt
but when i gave help command i did not see my command listed there.
Try to pass a help string as the sixth argument of U_BOOT_CMD().
BR,
Anatolij
------------------------------
Message: 10
Date: Fri,  9 Mar 2012 16:58:41 +0100
From: Stefano Babic sbabic@denx.de
Subject: [U-Boot] [PATCH 2/2] omap3: fix NAND for tam3517 boards
To: u-boot@lists.denx.de
Message-ID: 1331308721-20849-2-git-send-email-sbabic@denx.de
commit 4fee6c2f295f932b8febdc7ce8731ba045695fa5
nand: make 1-bit software ECC configurable
breaks boards using Software ECC and requires that
CONFIG_MTD_ECC_SOFT is set to have the previous
behavior. Fix for tam3517 based boards.
Signed-off-by: Stefano Babic sbabic@denx.de
Tom Rini trini@ti.com
---
 include/configs/tam3517-common.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/include/configs/tam3517-common.h b/include/configs/tam3517-common.h
index 4c4321d..aaf9afe 100644
--- a/include/configs/tam3517-common.h
+++ b/include/configs/tam3517-common.h
@@ -293,6 +293,7 @@
 #define CONFIG_MTD_PARTITIONS
 #define CONFIG_MTD_DEVICE
 #define CONFIG_CMD_MTDPARTS
+#define CONFIG_MTD_ECC_SOFT
/* Setup MTD for NAND on the SOM */
 #define MTDIDS_DEFAULT         "nand0=omap2-nand.0"
--
1.7.5.4
------------------------------
Message: 11
Date: Fri,  9 Mar 2012 16:58:40 +0100
From: Stefano Babic sbabic@denx.de
Subject: [U-Boot] [PATCH 1/2] omap3: fix NAND for mcx board
To: u-boot@lists.denx.de
Message-ID: 1331308721-20849-1-git-send-email-sbabic@denx.de
commit 4fee6c2f295f932b8febdc7ce8731ba045695fa5
nand: make 1-bit software ECC configurable
breaks boards using Software ECC and requires that
CONFIG_MTD_ECC_SOFT is set to have the previous
behavior. Fix for mcx board.
Signed-off-by: Stefano Babic sbabic@denx.de
Tom Rini trini@ti.com
---
 include/configs/mcx.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/include/configs/mcx.h b/include/configs/mcx.h
index 1315c3c..d9bb700 100644
--- a/include/configs/mcx.h
+++ b/include/configs/mcx.h
@@ -140,6 +140,7 @@
 #define CONFIG_MTD_PARTITIONS
 #define CONFIG_MTD_DEVICE
 #define CONFIG_CMD_MTDPARTS
+#define CONFIG_MTD_ECC_SOFT
#undef CONFIG_CMD_FLASH                /* flinfo, erase, protect       */
 #undef CONFIG_CMD_FPGA         /* FPGA configuration Support   */
--
1.7.5.4
------------------------------
Message: 12
Date: Fri, 9 Mar 2012 09:09:54 -0700
From: Tom Rini trini@ti.com
Subject: Re: [U-Boot] [PATCH 1/2] omap3: fix NAND for mcx board
To: Stefano Babic sbabic@denx.de
Cc: u-boot@lists.denx.de
Message-ID: 20120309160954.GB11879@bill-the-cat
Content-Type: text/plain; charset=us-ascii
On Fri, Mar 09, 2012 at 04:58:40PM +0100, Stefano Babic wrote:
...
commit 4fee6c2f295f932b8febdc7ce8731ba045695fa5
nand: make 1-bit software ECC configurable
breaks boards using Software ECC and requires that
CONFIG_MTD_ECC_SOFT is set to have the previous
behavior. Fix for mcx board.
Signed-off-by: Stefano Babic sbabic@denx.de
Tom Rini trini@ti.com
The generic NAND commit has been reverted for some time now, please
re-test your boards against current mainline.  Thanks!
--
Tom
------------------------------
Message: 13
Date: Fri, 09 Mar 2012 17:19:22 +0100
From: Stefano Babic sbabic@denx.de
Subject: Re: [U-Boot] [PATCH 1/2] omap3: fix NAND for mcx board
To: Tom Rini trini@ti.com
Cc: u-boot@lists.denx.de
Message-ID: 4F5A2D8A.2040503@denx.de
Content-Type: text/plain; charset=ISO-8859-1
On 09/03/2012 17:09, Tom Rini wrote:
...
On Fri, Mar 09, 2012 at 04:58:40PM +0100, Stefano Babic wrote:
...
commit 4fee6c2f295f932b8febdc7ce8731ba045695fa5
nand: make 1-bit software ECC configurable
breaks boards using Software ECC and requires that
CONFIG_MTD_ECC_SOFT is set to have the previous
behavior. Fix for mcx board.
Signed-off-by: Stefano Babic sbabic@denx.de
Tom Rini trini@ti.com
The generic NAND commit has been reverted for some time now, please
re-test your boards against current mainline.  Thanks!
Thanks Tom ! Please drop my patches, they are not necessary.
Stefano
--
=====================================================================
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-0 Fax: +49-8142-66989-80  Email: office@denx.de
=====================================================================
------------------------------
Message: 14
Date: Fri, 09 Mar 2012 09:57:06 -0700
From: Stephen Warren swarren@wwwdotorg.org
Subject: Re: [U-Boot] [PATCH 2/2] tegra: Enable pre-console putc() for
        Tegra   boards
To: Simon Glass sjg@chromium.org
Cc: linux-tegra@vger.kernel.org, U-Boot Mailing List
        u-boot@lists.denx.de, Tom Warren twarren@nvidia.com
Message-ID: 4F5A3662.3040009@wwwdotorg.org
Content-Type: text/plain; charset=ISO-8859-1
On 03/08/2012 07:52 PM, Simon Glass wrote:
...
This is used to display panic messages before the console is active.
Signed-off-by: Simon Glass sjg@chromium.org
I applied both these patches on top of u-boot-tegra/master, built for
Ventana, and loaded/ran u-boot.bin, and don't see any useful serial
output; there's a bit of periodic binary spew. u-boot-dtb.bin works as
expected.
So, these patches don't appear to solve the problem.
------------------------------
Message: 15
Date: Fri, 09 Mar 2012 18:35:27 +0100
From: Dirk Behme dirk.behme@googlemail.com
Subject: Re: [U-Boot] A few things for the release?
To: u-boot@lists.denx.de
Message-ID: 4F5A3F5F.7020508@googlemail.com
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On 09.03.2012 15:32, Simon Glass wrote:
...
Hi,
I have a few more series that I hope will go in this time.

I think bootstage is ready

http://patchwork.ozlabs.org/bundle/sjg/bootstage/

The generic board init series needs some updates to create

asm/sections.h for each architecture. This changes quite a few
patches, plus there is one that I can drop since Mike fixed s520_timer
already. So I will resend the whole series today. The is enabled only
by a config option.

For generic relocation, there is the issue of creating

lib/membasic.c (which is safe I think, but changes things for
everyone) versus using -ffunction-sections and possibly breaking some
boards. The latter solution is probably preferred in the long term,
but I'm not sure if Albert is keep on this happening now. See here for
details:
http://patchwork.ozlabs.org/patch/142216/
Albert, can you please take a look?

I have created a bundle for the ARM link-script series as it is today:

http://patchwork.ozlabs.org/bundle/sjg/lds/
Albert you had some comments, the latest of which I answered here:
http://patchwork.ozlabs.org/patch/142254/
Using the nice subject ;)
5. I'm still hoping that we could get
http://patchwork.ozlabs.org/patch/136789/
into 2012.0{3,4}.
Best regards
Dirk
------------------------------
Message: 16
Date: Fri, 9 Mar 2012 18:10:04 +0000
From: Alex Zeffertt azeffertt@cambridgesys.com
Subject: Re: [U-Boot] ubifsmount reports "Error reading superblock",
        but linux can mount FS
To: Wolfgang Denk wd@denx.de, u-boot@lists.denx.de
Message-ID:
        CANNiwJLjE1vzPPCPC_-mJE_fZKKKSrrN=6f5YTC7cW51ZNiFPg@mail.gmail.com
Content-Type: text/plain; charset=ISO-8859-1
On 9 March 2012 14:02, Wolfgang Denk wd@denx.de wrote:
...
In message CANNiwJKREXiOBfiA_1v_-QGMoV_A59Ce0ADcVfK1xLMFkReFgw@mail.gmail.com you wrote:
...
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?... ?How do you know
how big this might need to be in order to mount a filesystem that
"needs recovery"?
I don't know of ways to determine this in advance. ?Eventually all we
can do is thry what you did: increase the malloc arena when it turns
out to be too small.
If you are willing to invest a little more time, it would be
interesting to test how much memory is actually needed on your system.
I know that 1MiB was too little and 4MiB was enough.  However, I don't
know whether a filesystem corruption could occur that caused
ubifsmount to require more than 4MiB.  For that reason I made the
malloc area 64MiB.  This is half my total RAM, which leaves the other
half for downloading images.
Regards,
Alex
------------------------------
Message: 17
Date: Fri, 9 Mar 2012 10:24:41 -0800
From: Simon Glass sjg@chromium.org
Subject: Re: [U-Boot] [PATCH 2/2] tegra: Enable pre-console putc() for
        Tegra   boards
To: Stephen Warren swarren@wwwdotorg.org
Cc: linux-tegra@vger.kernel.org, U-Boot Mailing List
        u-boot@lists.denx.de, Tom Warren twarren@nvidia.com
Message-ID:
        CAPnjgZ2CnV8LjOJQx3Y-5fP=+xBPa7eAiikBNnJypDq7r1JLWg@mail.gmail.com
Content-Type: text/plain; charset=ISO-8859-1
Hi Stephen,
On Fri, Mar 9, 2012 at 8:57 AM, Stephen Warren swarren@wwwdotorg.org wrote:
...
On 03/08/2012 07:52 PM, Simon Glass wrote:
...
This is used to display panic messages before the console is active.
Signed-off-by: Simon Glass sjg@chromium.org
I applied both these patches on top of u-boot-tegra/master, built for
Ventana, and loaded/ran u-boot.bin, and don't see any useful serial
output; there's a bit of periodic binary spew. u-boot-dtb.bin works as
expected.
I don't have a ventana but I think Seaboard is equivalent. I will test
on that and figure out what piece is missing.
...
So, these patches don't appear to solve the problem.
They do in our tree, but I will take a look.
Regards,
Simon
------------------------------
Message: 18
Date: Fri, 9 Mar 2012 12:32:04 -0800
From: Simon Glass sjg@chromium.org
Subject: Re: [U-Boot] [PATCH 2/2] tegra: Enable pre-console putc() for
        Tegra   boards
To: Stephen Warren swarren@wwwdotorg.org
Cc: U-Boot Mailing List u-boot@lists.denx.de, Tom Warren
        twarren@nvidia.com
Message-ID:
        CAPnjgZ2nAgGTYvanYSUHBzXYBqHY_1j12ApToqGgUbHzQ1Oy3Q@mail.gmail.com
Content-Type: text/plain; charset=ISO-8859-1
-linux-tegra
Hi Stephen,
On Fri, Mar 9, 2012 at 8:57 AM, Stephen Warren swarren@wwwdotorg.org wrote:
...
On 03/08/2012 07:52 PM, Simon Glass wrote:
...
This is used to display panic messages before the console is active.
Signed-off-by: Simon Glass sjg@chromium.org
I applied both these patches on top of u-boot-tegra/master, built for
Ventana, and loaded/ran u-boot.bin, and don't see any useful serial
output; there's a bit of periodic binary spew. u-boot-dtb.bin works as
expected.
So, these patches don't appear to solve the problem.
You are seeing the output, but since it resets the ns16550 on every
character we are just emitting garbage. I should have pushed back on
just having a board_pre_console_panic() as it would be easier. Anyway,
given that this is what we have, we need a function to drain the FIFO.
Also printf() is silently skipped without a console, so we need to
stop that happening as well.
I will send a new series with those two new patches and dealing with
Mike's comments. It seems to work fine for me on Seaboard.
Regards,
Simon
------------------------------
Message: 19
Date: Fri,  9 Mar 2012 12:32:55 -0800
From: Simon Glass sjg@chromium.org
Subject: [U-Boot] [PATCH v2 1/4] ns16550: Add function to drain serial
        output
To: U-Boot Mailing List u-boot@lists.denx.de
Cc: Tom Warren twarren@nvidia.com
Message-ID: 1331325178-14634-1-git-send-email-sjg@chromium.org
Sometimes we want to be sure that the output FIFO has fully drained (e.g.
because we are about to reset or the port or reset the board). Add a
function for this.
Signed-off-by: Simon Glass sjg@chromium.org
---
Changes in v2:
- Add function to drain the ns16550's FIFO
drivers/serial/ns16550.c |   11 +++++++++++
 include/ns16550.h        |    3 +++
 2 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c
index 0c23955..a082112 100644
--- a/drivers/serial/ns16550.c
+++ b/drivers/serial/ns16550.c
@@ -6,6 +6,7 @@
#include <config.h>
 #include <ns16550.h>
+#include <common.h>
 #include <watchdog.h>
 #include <linux/types.h>
 #include <asm/io.h>
@@ -115,4 +116,14 @@ int NS16550_tstc(NS16550_t com_port)
        return (serial_in(&com_port->lsr) & UART_LSR_DR) != 0;
 }
+/* Wait for the UART's output buffer and holding register to drain */
+void NS16550_drain(NS16550_t regs)
+{
+       u32 mask = UART_LSR_TEMT | UART_LSR_THRE;
+
+       /* Wait for the UART to finish sending */
+       while ((serial_in(&regs->lsr) & mask) != mask)
+               udelay(100);
+}
+
 #endif /* CONFIG_NS16550_MIN_FUNCTIONS */
diff --git a/include/ns16550.h b/include/ns16550.h
index e9d2eda..16b3828 100644
--- a/include/ns16550.h
+++ b/include/ns16550.h
@@ -166,4 +166,7 @@ void NS16550_init(NS16550_t com_port, int baud_divisor);
 void NS16550_putc(NS16550_t com_port, char c);
 char NS16550_getc(NS16550_t com_port);
 int NS16550_tstc(NS16550_t com_port);
+
+/* Wait for the UART's output buffer and holding register to drain */
+void NS16550_drain(NS16550_t regs);
 void NS16550_reinit(NS16550_t com_port, int baud_divisor);
--
1.7.7.3
------------------------------
Message: 20
Date: Fri,  9 Mar 2012 12:32:56 -0800
From: Simon Glass sjg@chromium.org
Subject: [U-Boot] [PATCH v2 2/4] Enable printf() console if
        pre-console     putc() is available
To: U-Boot Mailing List u-boot@lists.denx.de
Cc: Tom Warren twarren@nvidia.com
Message-ID: 1331325178-14634-2-git-send-email-sjg@chromium.org
At present we skip printf() if there is no hope of it making it to the
console. But this check ignores CONFIG_PRE_CONSOLE_PUTC at present.
Add a check for that also.
Signed-off-by: Simon Glass sjg@chromium.org
---
Changes in v2:
- Allow printf() output to make it to pre-console putc()
common/console.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/common/console.c b/common/console.c
index 1d9fd7f..38d7094 100644
--- a/common/console.c
+++ b/common/console.c
@@ -447,7 +447,7 @@ int vprintf(const char *fmt, va_list args)
        uint i;
        char printbuffer[CONFIG_SYS_PBSIZE];
-#ifndef CONFIG_PRE_CONSOLE_BUFFER
+#if !defined(CONFIG_PRE_CONSOLE_BUFFER) && !defined(CONFIG_PRE_CONSOLE_PUTC)
        if (!gd->have_console)
                return 0;
 #endif
--
1.7.7.3
------------------------------
Message: 21
Date: Fri,  9 Mar 2012 12:32:57 -0800
From: Simon Glass sjg@chromium.org
Subject: [U-Boot] [PATCH v2 3/4] tegra: Implement pre-console putc()
        for fdt warning
To: U-Boot Mailing List u-boot@lists.denx.de
Cc: Stephen Warren swarren@nvidia.com, Tom Warren
        twarren@nvidia.com
Message-ID: 1331325178-14634-3-git-send-email-sjg@chromium.org
When there is not device tree file available to U-Boot, we panic.
Implement board_pre_console_putc() so that this panic will be displayed
on the serial console.
Signed-off-by: Simon Glass sjg@chromium.org
---
Changes in v2:
- Tidy up casting in board_pre_console_putc()
- Use 'const' for uart_reg_addr
arch/arm/cpu/armv7/tegra2/board.c |   61 +++++++++++++++++++++++++++++++++++++
 1 files changed, 61 insertions(+), 0 deletions(-)
diff --git a/arch/arm/cpu/armv7/tegra2/board.c b/arch/arm/cpu/armv7/tegra2/board.c
index 77a627d..0517d72 100644
--- a/arch/arm/cpu/armv7/tegra2/board.c
+++ b/arch/arm/cpu/armv7/tegra2/board.c
@@ -23,9 +23,11 @@
#include <common.h>
 #include <asm/io.h>
+#include <ns16550.h>
 #include "ap20.h"
 #include <asm/arch/clock.h>
 #include <asm/arch/funcmux.h>
+#include <asm/arch/gpio.h>
 #include <asm/arch/sys_proto.h>
 #include <asm/arch/tegra2.h>
 #include <asm/arch/pmc.h>
@@ -37,6 +39,7 @@ enum {
        UARTA   = 1 << 0,
        UARTB   = 1 << 1,
        UARTD   = 1 << 3,
+       UART_ALL = 0xf,
        UART_COUNT = 4,
 };
@@ -149,3 +152,61 @@ void enable_caches(void)
        dcache_enable();
 }
 #endif
+
+
+/*
+ * Possible UART locations: we ignore UARTC at 0x70006200 and UARTE at
+ * 0x70006400, since we don't have code to init them
+ */
+static const u32 uart_reg_addr[] = {
+       NV_PA_APB_UARTA_BASE,
+       NV_PA_APB_UARTB_BASE,
+       NV_PA_APB_UARTD_BASE,
+       0
+};
+
+#ifdef CONFIG_PRE_CONSOLE_PUTC
+/*
+ * This is called when we have no console. About the only reason that this
+ * happen is if we don't have a valid fdt. So we don't know what kind of
+ * Tegra board we are. We blindly try to print a message every which way we
+ * know.
+ */
+void board_pre_console_putc(int ch)
+{
+       int uart_ids = UART_ALL;        /* turn it all on! */
+       const u32 *uart_addr;
+       int clock_freq, multiplier, baudrate, divisor;
+
+       /* Try to enable all possible UARTs */
+       setup_uarts(uart_ids);
+
+       /*
+        * Seaboard has a UART switch on PI3. We might be a Seaboard,
+        * so flip it!
+        */
+#ifdef CONFIG_SPI_UART_SWITCH
+       gpio_direction_output(GPIO_PI3, 0);
+#endif
+
+       /*
+        * Now send the string out all the Tegra UARTs. We don't try all
+        * possible configurations, but this could be added if required.
+        */
+       clock_freq = CONFIG_DEFAULT_NS16550_CLK;
+       multiplier = CONFIG_DEFAULT_NS16550_MULT;
+       baudrate = CONFIG_BAUDRATE;
+       divisor = (clock_freq + (baudrate * (multiplier / 2))) /
+                       (multiplier * baudrate);
+
+       for (uart_addr = uart_reg_addr; *uart_addr; uart_addr++) {
+               NS16550_t regs = (NS16550_t)*uart_addr;
+
+               NS16550_init(regs, divisor);
+               NS16550_putc(regs, ch);
+               if (ch == '\n')
+                       NS16550_putc(regs, '\r');
+               NS16550_drain(regs);
+       }
+}
+#endif
--
1.7.7.3
------------------------------
Message: 22
Date: Fri,  9 Mar 2012 12:32:58 -0800
From: Simon Glass sjg@chromium.org
Subject: [U-Boot] [PATCH v2 4/4] tegra: Enable pre-console putc() for
        Tegra   boards
To: U-Boot Mailing List u-boot@lists.denx.de
Cc: Stephen Warren swarren@nvidia.com, Tom Warren
        twarren@nvidia.com
Message-ID: 1331325178-14634-4-git-send-email-sjg@chromium.org
This is used to display panic messages before the console is active.
Signed-off-by: Simon Glass sjg@chromium.org
---
include/configs/tegra2-common.h |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/include/configs/tegra2-common.h b/include/configs/tegra2-common.h
index 837f859..368f3eb 100644
--- a/include/configs/tegra2-common.h
+++ b/include/configs/tegra2-common.h
@@ -68,11 +68,18 @@
  */
 #define V_NS16550_CLK                  216000000       /* 216MHz (pllp_out0) */
+/* Default serial clock and multiplier */
+#define CONFIG_DEFAULT_NS16550_CLK     V_NS16550_CLK
+#define CONFIG_DEFAULT_NS16550_MULT    16
+
 #define CONFIG_SYS_NS16550
 #define CONFIG_SYS_NS16550_SERIAL
 #define CONFIG_SYS_NS16550_REG_SIZE    (-4)
 #define CONFIG_SYS_NS16550_CLK         V_NS16550_CLK
+/* We use this for a warning message when no device tree is present */
+#define CONFIG_PRE_CONSOLE_PUTC
+
 /*
  * select serial console configuration
  */
--
1.7.7.3
------------------------------
Message: 23
Date: Fri, 9 Mar 2012 12:59:38 -0800
From: Tom Warren TWarren@nvidia.com
Subject: Re: [U-Boot] [PATCH v2 1/4] ns16550: Add function to drain
        serial  output
To: Simon Glass sjg@chromium.org, U-Boot Mailing List
        u-boot@lists.denx.de
Message-ID:
        5FBF8E85CA34454794F0F7ECBA79798F37971BC0CD@HQMAIL04.nvidia.com
Content-Type: text/plain; charset="us-ascii"
Simon,
...
-----Original Message-----
From: Simon Glass [mailto:sjg@chromium.org]
Sent: Friday, March 09, 2012 1:33 PM
To: U-Boot Mailing List
Cc: Tom Warren; Stephen Warren; Simon Glass
Subject: [PATCH v2 1/4] ns16550: Add function to drain serial output
This patch series (v2, 1-4) works for me on my Seaboard - I get a message about 'No valid fdt found', etc.
So:
Tested-by: Tom Warren twarren@nvidia.com
Acked-by: Tom Warren twarren@nvidia.com
If no one objects, I'll apply this series, and Stephen's 'Makefile: fdt: Make the final build result be u-boot.bin' patch (which also works OK, BTW) to my previous pull request and resend to Albert.
Tom
--
nvpublic
...
Sometimes we want to be sure that the output FIFO has fully drained (e.g.
because we are about to reset or the port or reset the board). Add a
function for this.
Signed-off-by: Simon Glass sjg@chromium.org
Changes in v2:

Add function to drain the ns16550's FIFO

drivers/serial/ns16550.c |   11 +++++++++++
 include/ns16550.h        |    3 +++
 2 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c index
0c23955..a082112 100644
--- a/drivers/serial/ns16550.c
+++ b/drivers/serial/ns16550.c
@@ -6,6 +6,7 @@
#include <config.h>
 #include <ns16550.h>
+#include <common.h>
 #include <watchdog.h>
 #include <linux/types.h>
 #include <asm/io.h>
@@ -115,4 +116,14 @@ int NS16550_tstc(NS16550_t com_port)
      return (serial_in(&com_port->lsr) & UART_LSR_DR) != 0;  }
+/* Wait for the UART's output buffer and holding register to drain */
+void NS16550_drain(NS16550_t regs) {

u32 mask = UART_LSR_TEMT | UART_LSR_THRE;



/* Wait for the UART to finish sending */


while ((serial_in(&regs->lsr) & mask) != mask)


        udelay(100);



+}



#endif /* CONFIG_NS16550_MIN_FUNCTIONS */ diff --git a/include/ns16550.h
b/include/ns16550.h index e9d2eda..16b3828 100644
--- a/include/ns16550.h
+++ b/include/ns16550.h
@@ -166,4 +166,7 @@ void NS16550_init(NS16550_t com_port, int baud_divisor);
void NS16550_putc(NS16550_t com_port, char c);  char NS16550_getc(NS16550_t
com_port);  int NS16550_tstc(NS16550_t com_port);



+/* Wait for the UART's output buffer and holding register to drain */
+void NS16550_drain(NS16550_t regs);
 void NS16550_reinit(NS16550_t com_port, int baud_divisor);
--
1.7.7.3
------------------------------
Message: 24
Date: Fri, 09 Mar 2012 14:00:56 -0700
From: Stephen Warren swarren@wwwdotorg.org
Subject: Re: [U-Boot] [PATCH v2 1/4] ns16550: Add function to drain
        serial  output
To: Simon Glass sjg@chromium.org
Cc: U-Boot Mailing List u-boot@lists.denx.de, Tom Warren
        twarren@nvidia.com
Message-ID: 4F5A6F88.6020503@wwwdotorg.org
Content-Type: text/plain; charset=ISO-8859-1
On 03/09/2012 01:32 PM, Simon Glass wrote:
...
Sometimes we want to be sure that the output FIFO has fully drained (e.g.
because we are about to reset or the port or reset the board). Add a
function for this.
Signed-off-by: Simon Glass sjg@chromium.org
The series,
Tested-by: Stephen Warren swarren@wwwdotorg.org
Tom,
I'm OK with you adding these patches to u-boot-tegra/master and sending
a pull request for that. Just please put these patches before any that
actually enable CONFIG_OF_CONTROL for any boards, so there's never a
window of broken commits.
I think it'd be nice at this stage to also drop the commit that turns
Ventana into a DT board, since re-using the Seaboard .dts file for
Ventana isn't correct. However, IIRC that commit was added to WAR some
build issue with Simon's patch series? If that's still a problem, then
I'm OK with converting Ventana if we have to, but we'll need to be very
careful that tegra-seaboard.dts doesn't add stuff that'll fail on, or
damage, Ventana.
------------------------------
Message: 25
Date: Fri, 9 Mar 2012 13:08:33 -0800
From: Simon Glass sjg@chromium.org
Subject: Re: [U-Boot] [PATCH v2 1/4] ns16550: Add function to drain
        serial  output
To: Stephen Warren swarren@wwwdotorg.org
Cc: U-Boot Mailing List u-boot@lists.denx.de, Tom Warren
        twarren@nvidia.com
Message-ID:
        CAPnjgZ2U_Aobrj4YGTFzJVJ2xRhaZ9E9Jo0tj7Whnb7ECnZL1A@mail.gmail.com
Content-Type: text/plain; charset=ISO-8859-1
Hi,
On Fri, Mar 9, 2012 at 1:00 PM, Stephen Warren swarren@wwwdotorg.org wrote:
...
On 03/09/2012 01:32 PM, Simon Glass wrote:
...
Sometimes we want to be sure that the output FIFO has fully drained (e.g.
because we are about to reset or the port or reset the board). Add a
function for this.
Signed-off-by: Simon Glass sjg@chromium.org
The series,
Tested-by: Stephen Warren swarren@wwwdotorg.org
Tom,
I'm OK with you adding these patches to u-boot-tegra/master and sending
a pull request for that. Just please put these patches before any that
actually enable CONFIG_OF_CONTROL for any boards, so there's never a
window of broken commits.
I think it'd be nice at this stage to also drop the commit that turns
Ventana into a DT board, since re-using the Seaboard .dts file for
Ventana isn't correct. However, IIRC that commit was added to WAR some
build issue with Simon's patch series? If that's still a problem, then
I'm OK with converting Ventana if we have to, but we'll need to be very
careful that tegra-seaboard.dts doesn't add stuff that'll fail on, or
damage, Ventana.
A few points:
1. Yes you can drop the Ventana commit and I agree it is a good idea.
We should have a real Ventana .dts file I think. Ventana should built
ok without a device tree now. The problem was in my clock.c patch.
2. I have held off responding to Stephen's patch on the ML to see what
other say. My view is that it is controversial since it changes the
so-far accepted meaning of u-boot.bin and the behaviour of the U-Boot
Makefile. Plus it is not really necessary as a means of informing the
user since we put the pre-console putc() for exactly this problem. So
I would rather leave Stephen's patch out at until people have time to
decide that I am wrong about it. We already have CONFIG_OF_EMBED to
build the fdt into u-boot.bin. Grant Likely had big reservations about
this feature - let's not bring it in by stealth.
Regards,
Simon
------------------------------
Message: 26
Date: Fri, 9 Mar 2012 13:23:31 -0800
From: Tom Warren TWarren@nvidia.com
Subject: Re: [U-Boot] [PATCH v2 1/4] ns16550: Add function to drain
        serial  output
To: Simon Glass sjg@chromium.org, Stephen Warren
        swarren@wwwdotorg.org
Cc: U-Boot Mailing List u-boot@lists.denx.de
Message-ID:
        5FBF8E85CA34454794F0F7ECBA79798F37971BC0D6@HQMAIL04.nvidia.com
Content-Type: text/plain; charset="us-ascii"
Simon/Stephen,
...
-----Original Message-----
From: sjg@google.com [mailto:sjg@google.com] On Behalf Of Simon Glass
Sent: Friday, March 09, 2012 2:09 PM
To: Stephen Warren
Cc: U-Boot Mailing List; Tom Warren
Subject: Re: [PATCH v2 1/4] ns16550: Add function to drain serial output
Hi,
On Fri, Mar 9, 2012 at 1:00 PM, Stephen Warren swarren@wwwdotorg.org
wrote:
...
On 03/09/2012 01:32 PM, Simon Glass wrote:
...
Sometimes we want to be sure that the output FIFO has fully drained (e.g.
because we are about to reset or the port or reset the board). Add a
function for this.
Signed-off-by: Simon Glass sjg@chromium.org
The series,
Tested-by: Stephen Warren swarren@wwwdotorg.org
Tom,
I'm OK with you adding these patches to u-boot-tegra/master and
sending a pull request for that. Just please put these patches before
any that actually enable CONFIG_OF_CONTROL for any boards, so there's
never a window of broken commits.
I think it'd be nice at this stage to also drop the commit that turns
Ventana into a DT board, since re-using the Seaboard .dts file for
Ventana isn't correct. However, IIRC that commit was added to WAR some
build issue with Simon's patch series? If that's still a problem, then
I'm OK with converting Ventana if we have to, but we'll need to be
very careful that tegra-seaboard.dts doesn't add stuff that'll fail
on, or damage, Ventana.
A few points:

Yes you can drop the Ventana commit and I agree it is a good idea.

We should have a real Ventana .dts file I think. Ventana should built ok
without a device tree now. The problem was in my clock.c patch.

I have held off responding to Stephen's patch on the ML to see what other

say. My view is that it is controversial since it changes the so-far
accepted meaning of u-boot.bin and the behaviour of the U-Boot Makefile.
Plus it is not really necessary as a means of informing the user since we
put the pre-console putc() for exactly this problem. So I would rather leave
Stephen's patch out at until people have time to decide that I am wrong
about it. We already have CONFIG_OF_EMBED to build the fdt into u-boot.bin.
Grant Likely had big reservations about this feature - let's not bring it in
by stealth.
I see now why it's so hard to find custodians for the U-Boot repos. :/
I've done as Stephen requested and re-ordered the commits so his Makefile fix comes before the config file changes to add CONFIG_OF_CONTROL to Seaboard and Ventana.
I've left the Ventana change that uses the Seaboard .dts file in, as I think it can easily be edited to use a Ventana-specific dts file just as soon as one of you finds one and submits a patch for it. For now, the Seaboard .dts just works.
I've pushed my latest changes to u-boot-tegra/master, and I'm going to let it percolate over the weekend. I'd have liked to get a pull request in to Albert today, before the ARM HEAD moves again, but I'm not going sweat to it since there doesn't seem to be a consensus on how to proceed here. IMO, I see no problem with putting these patches in as they stand, since I've tested them to work OK on Seaboard and Ventana, other (non-DT) Tegra2 boards build fine, and anything here that needs to change can always be edited with a future patch. But I'm going to head out early (it's my birthday today), and pick this up again next week.
Tom
--
nvpublic
...
Regards,
Simon
------------------------------
Message: 27
Date: Fri, 9 Mar 2012 13:29:16 -0800
From: Simon Glass sjg@chromium.org
Subject: Re: [U-Boot] [PATCH v2 1/4] ns16550: Add function to drain
        serial  output
To: Tom Warren TWarren@nvidia.com
Cc: U-Boot Mailing List u-boot@lists.denx.de
Message-ID:
        CAPnjgZ34SjYWv1A-yZ9Y5BaXPZs3hY8W6OCuLtux5hpqkVykvQ@mail.gmail.com
Content-Type: text/plain; charset=ISO-8859-1
Hi Stephen,
On Fri, Mar 9, 2012 at 1:23 PM, Tom Warren TWarren@nvidia.com wrote:
...
Simon/Stephen,
...
-----Original Message-----
From: sjg@google.com [mailto:sjg@google.com] On Behalf Of Simon Glass
Sent: Friday, March 09, 2012 2:09 PM
To: Stephen Warren
Cc: U-Boot Mailing List; Tom Warren
Subject: Re: [PATCH v2 1/4] ns16550: Add function to drain serial output
Hi,
On Fri, Mar 9, 2012 at 1:00 PM, Stephen Warren swarren@wwwdotorg.org
wrote:
...
On 03/09/2012 01:32 PM, Simon Glass wrote:
...
Sometimes we want to be sure that the output FIFO has fully drained (e.g.
because we are about to reset or the port or reset the board). Add a
function for this.
Signed-off-by: Simon Glass sjg@chromium.org
The series,
Tested-by: Stephen Warren swarren@wwwdotorg.org
Tom,
I'm OK with you adding these patches to u-boot-tegra/master and
sending a pull request for that. Just please put these patches before
any that actually enable CONFIG_OF_CONTROL for any boards, so there's
never a window of broken commits.
I think it'd be nice at this stage to also drop the commit that turns
Ventana into a DT board, since re-using the Seaboard .dts file for
Ventana isn't correct. However, IIRC that commit was added to WAR some
build issue with Simon's patch series? If that's still a problem, then
I'm OK with converting Ventana if we have to, but we'll need to be
very careful that tegra-seaboard.dts doesn't add stuff that'll fail
on, or damage, Ventana.
A few points:

Yes you can drop the Ventana commit and I agree it is a good idea.

We should have a real Ventana .dts file I think. Ventana should built ok
without a device tree now. The problem was in my clock.c patch.

I have held off responding to Stephen's patch on the ML to see what other

say. My view is that it is controversial since it changes the so-far
accepted meaning of u-boot.bin and the behaviour of the U-Boot Makefile.
Plus it is not really necessary as a means of informing the user since we
put the pre-console putc() for exactly this problem. So I would rather leave
Stephen's patch out at until people have time to decide that I am wrong
about it. We already have CONFIG_OF_EMBED to build the fdt into u-boot.bin.
Grant Likely had big reservations about this feature - let's not bring it in
by stealth.
I see now why it's so hard to find custodians for the U-Boot repos. :/
I've done as Stephen requested and re-ordered the commits so his Makefile fix comes before the config file changes to add CONFIG_OF_CONTROL to Seaboard and Ventana.
I've left the Ventana change that uses the Seaboard .dts file in, as I think it can easily be edited to use a Ventana-specific dts file just as soon as one of you finds one and submits a patch for it. For now, the Seaboard .dts just works.
I've pushed my latest changes to u-boot-tegra/master, and I'm going to let it percolate over the weekend. I'd have liked to get a pull request in to Albert today, before the ARM HEAD moves again, but I'm not going sweat to it since there doesn't seem to be a consensus on how to proceed here. IMO, I see no problem with putting these patches in as they stand, since I've tested them to work OK on Seaboard and Ventana, other (non-DT) Tegra2 boards build fine, and anything here that needs to change can always be edited with a future patch. But I'm going to head out early (it's my birthday today), and pick this up again next week.
Happy Birthday Tom!
Stephen, what you do you about leaving out your Makefile patch for
now? It is (I think) the only controversial part of this, and is not
needed to make all this work...
Regards,
Simon
...
Tom
--
nvpublic
...
Regards,
Simon
------------------------------
Message: 28
Date: Fri, 09 Mar 2012 14:40:17 -0700
From: Stephen Warren swarren@wwwdotorg.org
Subject: Re: [U-Boot] [PATCH v2 1/4] ns16550: Add function to drain
        serial  output
To: Simon Glass sjg@chromium.org
Cc: U-Boot Mailing List u-boot@lists.denx.de, Tom Warren
        TWarren@nvidia.com
Message-ID: 4F5A78C1.1030405@wwwdotorg.org
Content-Type: text/plain; charset=ISO-8859-1
On 03/09/2012 02:29 PM, Simon Glass wrote:
...
On Fri, Mar 9, 2012 at 1:23 PM, Tom Warren TWarren@nvidia.com wrote:
...
sjg@google.com wrote at  Friday, March 09, 2012 2:09 PM:
...
...
...
...

I have held off responding to Stephen's patch on the ML to see what other

say. My view is that it is controversial since it changes the so-far
accepted meaning of u-boot.bin and the behaviour of the U-Boot Makefile.
Plus it is not really necessary as a means of informing the user since we
put the pre-console putc() for exactly this problem. So I would rather leave
Stephen's patch out at until people have time to decide that I am wrong
about it. We already have CONFIG_OF_EMBED to build the fdt into u-boot.bin.
Grant Likely had big reservations about this feature - let's not bring it in
by stealth.
I don't quite see how this is bringing the feature in by stealth; the
exact same set of files (one with and without appended DTB already in
place) is still available, just under filenames that are likely to cause
less surprise to the user.
...
...
Stephen, what you do you about leaving out your Makefile patch for
now? It is (I think) the only controversial part of this, and is not
needed to make all this work...
Yes, I'm happy with that. The issue I had was the surprising result of
U-Boot hanging without giving any clues why, and that's addressed by the
messages that are now printed with your latest patches.
While I still like the patch to rename the files in the top-level
Makefile, I do agree that including it in a pull request without more
widespread discussion and agreement is not a good idea.
BTW, happy birthday Tom.
------------------------------
Message: 29
Date: Fri, 9 Mar 2012 14:39:00 -0800
From: Tom Warren TWarren@nvidia.com
Subject: [U-Boot] pull request for u-boot-tegra/master
To: Albert ARIBAUD albert.u.boot@aribaud.net
Cc: U-Boot Mailing List u-boot@lists.denx.de, Stephen Warren
        swarren@nvidia.com
Message-ID:
        5FBF8E85CA34454794F0F7ECBA79798F37971BC102@HQMAIL04.nvidia.com
Content-Type: text/plain; charset="us-ascii"
Albert,
Please pull u-boot-tegra/master into arm master. Thanks!
The following changes since commit 32ec258f829808dd7cf74fd83ba999fdaaeab715:
IXP: Fix GPIO_INT_ACT_LOW_SET() (2012-03-08 08:11:45 +0100)
are available in the git repository at:
  git://git.denx.de/u-boot-tegra master
Simon Glass (26):
      fdt: Add fdtdec_find_aliases() to deal with alias nodes
      fdt: Add tests for fdtdec
      fdt: Tidy up a few fdtdec problems
      fdt: Add functions to access phandles, arrays and bools
      fdt: Add basic support for decoding GPIO definitions
      arm: fdt: Add skeleton device tree file from kernel
      tegra: fdt: Add Tegra2x device tree file from kernel
      tegra: fdt: Add device tree file for Tegra2 Seaboard from kernel
      fdt: Add staging area for device tree binding documentation
      fdt: Add tegra-usb bindings file from linux
      tegra: fdt: Add additional USB binding
      tegra: fdt: Add clock bindings
      tegra: fdt: Add clock bindings for Tegra2 Seaboard
      tegra: usb: fdt: Add additional device tree definitions for USB ports
      tegra: usb: fdt: Add USB definitions for Tegra2 Seaboard
      usb: Add support for txfifo threshold
      tegra: fdt: Add function to return peripheral/clock ID
      tegra: usb: Add support for Tegra USB peripheral
      tegra: usb: Add USB support to nvidia boards
      tegra: usb: Add common USB defines for tegra2 boards
      tegra: usb: Enable USB on Seaboard
      tegra: fdt: Enable FDT support for Seaboard
      ns16550: Add function to drain serial output
      Enable printf() console if pre-console putc() is available
      tegra: Implement pre-console putc() for fdt warning
      tegra: Enable pre-console putc() for Tegra boards
Tom Warren (2):
      arm: Tegra2: Fix ELDK42 gcc failure with inline asm stack pointer load
      tegra: fdt: Enable FDT support for Ventana
README                                             |    3 +
arch/arm/cpu/armv7/tegra2/Makefile                 |    4 +-
arch/arm/cpu/armv7/tegra2/ap20.c                   |   10 +-
arch/arm/cpu/armv7/tegra2/board.c                  |   61 +++
arch/arm/cpu/armv7/tegra2/clock.c                  |   58 +++
arch/arm/cpu/armv7/tegra2/config.mk                |    2 +
arch/arm/cpu/armv7/tegra2/usb.c                    |  460 ++++++++++++++++++++
arch/arm/dts/skeleton.dtsi                         |   13 +
arch/arm/dts/tegra20.dtsi                          |  188 ++++++++
arch/arm/include/asm/arch-tegra2/clock.h           |   13 +
arch/arm/include/asm/arch-tegra2/tegra2.h          |    2 +
arch/arm/include/asm/arch-tegra2/usb.h             |  252 +++++++++++
board/nvidia/common/board.c                        |   12 +
board/nvidia/common/board.h                        |    6 +
board/nvidia/dts/tegra2-seaboard.dts               |   74 ++++
board/nvidia/seaboard/seaboard.c                   |    6 +
common/console.c                                   |    2 +-
doc/device-tree-bindings/README                    |   17 +
.../clock/nvidia,tegra20-car.txt                   |  207 +++++++++
doc/device-tree-bindings/usb/tegra-usb.txt         |   25 +
drivers/serial/ns16550.c                           |   11 +
drivers/usb/host/Makefile                          |    1 +
drivers/usb/host/ehci-hcd.c                        |    7 +
drivers/usb/host/ehci-tegra.c                      |   62 +++
drivers/usb/host/ehci.h                            |    6 +-
include/configs/seaboard.h                         |   12 +
include/configs/tegra2-common.h                    |   17 +
include/configs/ventana.h                          |    5 +
include/fdtdec.h                                   |  155 +++++++-
include/ns16550.h                                  |    3 +
lib/Makefile                                       |    1 +
lib/fdtdec.c                                       |  285 ++++++++++++-
lib/fdtdec_test.c                                  |  226 ++++++++++
33 files changed, 2188 insertions(+), 18 deletions(-)
create mode 100644 arch/arm/cpu/armv7/tegra2/usb.c
create mode 100644 arch/arm/dts/skeleton.dtsi
create mode 100644 arch/arm/dts/tegra20.dtsi
create mode 100644 arch/arm/include/asm/arch-tegra2/usb.h
create mode 100644 board/nvidia/dts/tegra2-seaboard.dts
create mode 100644 doc/device-tree-bindings/README
create mode 100644 doc/device-tree-bindings/clock/nvidia,tegra20-car.txt
create mode 100644 doc/device-tree-bindings/usb/tegra-usb.txt
create mode 100644 drivers/usb/host/ehci-tegra.c
create mode 100644 lib/fdtdec_test.c
--
nvpublic
------------------------------
Message: 30
Date: Fri, 9 Mar 2012 20:33:05 -0300
From: Fabio Estevam festevam@gmail.com
Subject: Re: [U-Boot] DEVELOPER's MEETING
To: Wolfgang Denk wd@denx.de
Cc: u-boot@lists.denx.de
Message-ID:
        CAOMZO5BgTUYSH9MFSbFkZf4Dx8O-VeiUW46WErQgLa07_gGZHw@mail.gmail.com
Content-Type: text/plain; charset=UTF-8
Hi Wolfgang,
On Thu, Mar 8, 2012 at 9:16 AM, Wolfgang Denk wd@denx.de wrote:
...
Hi,
I was just thinking if this year's Libre Software Meeting (LSM - from
7th to 12th July in Geneva, Switzerland) would be a suitable event to
arrange a meeting of some U-Boot developers?
What about arranging the U-boot meeting at ELCE ?
https://events.linuxfoundation.org/events/embedded-linux-conference-europe
Regards,
Fabio Estevam
------------------------------
Message: 31
Date: Fri, 09 Mar 2012 17:11:00 -0700
From: Matt Waddel matt.waddel@linaro.org
Subject: Re: [U-Boot] [PATCH resend] ARMV7/Vexpress: add missing
        get_ticks()     and get_tbclk()
To: u-boot@lists.denx.de
Message-ID: 4F5A9C14.5000004@linaro.org
Content-Type: text/plain; charset=ISO-8859-1
On 02/22/2012 07:56 AM, walimis wrote:
...
From: Liming Wang walimisdev@gmail.com
commit f31a911fe (arm, post: add missing post_time_ms for arm)
enables get_ticks and get_tbclk for all arm based boards,
arm/vexpress also needs these functions to work.
Signed-off-by: Liming Wang walimisdev@gmail.com
Acked-by: Matt.Waddel@linaro.org
...

board/armltd/vexpress/ca9x4_ct_vxp.c |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/board/armltd/vexpress/ca9x4_ct_vxp.c b/board/armltd/vexpress/ca9x4_ct_vxp.c
index da6f14d..0b36d12 100644
--- a/board/armltd/vexpress/ca9x4_ct_vxp.c
+++ b/board/armltd/vexpress/ca9x4_ct_vxp.c
@@ -226,3 +226,13 @@ void lowlevel_init(void)
 ulong get_board_rev(void){
      return readl((u32 *)SYS_ID);
 }



+unsigned long long get_ticks(void)
+{

return get_timer(0);



+}



+ulong get_tbclk (void)
+{

return (ulong)CONFIG_SYS_HZ;



+}
------------------------------
Message: 32
Date: Sat, 10 Mar 2012 09:16:20 +0100
From: Wolfgang Denk wd@denx.de
Subject: Re: [U-Boot] [PATCH v2 3/4] tegra: Implement pre-console
        putc() for      fdt warning
To: Simon Glass sjg@chromium.org
Cc: U-Boot Mailing List u-boot@lists.denx.de, Stephen Warren
        swarren@nvidia.com, Tom Warren twarren@nvidia.com
Message-ID: 20120310081620.CB434202C07@gemini.denx.de
Content-Type: text/plain; charset=UTF-8
Dear Simon Glass,
In message 1331325178-14634-3-git-send-email-sjg@chromium.org you wrote:
...
When there is not device tree file available to U-Boot, we panic.
Implement board_pre_console_putc() so that this panic will be displayed
on the serial console.
...
...
+void board_pre_console_putc(int ch)
+{
...
...

for (uart_addr = uart_reg_addr; *uart_addr; uart_addr++) {


        NS16550_t regs = (NS16550_t)*uart_addr;



        NS16550_init(regs, divisor);


        NS16550_putc(regs, ch);


        if (ch == '\n')


                NS16550_putc(regs, '\r');


        NS16550_drain(regs);



Why is this needed for every output character?
Actually, why is it needed at all?
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
All a hacker needs is a tight PUSHJ, a loose pair of UUOs, and a warm
place to shift.
------------------------------
Message: 33
Date: Sat, 10 Mar 2012 09:19:23 +0100
From: Wolfgang Denk wd@denx.de
Subject: Re: [U-Boot] [PATCH v2 1/4] ns16550: Add function to drain
        serial  output
To: Simon Glass sjg@chromium.org
Cc: U-Boot Mailing List u-boot@lists.denx.de, Tom Warren
        twarren@nvidia.com
Message-ID: 20120310081923.BB158202C07@gemini.denx.de
Content-Type: text/plain; charset=UTF-8
Dear Simon Glass,
In message 1331325178-14634-1-git-send-email-sjg@chromium.org you wrote:
...
Sometimes we want to be sure that the output FIFO has fully drained (e.g.
because we are about to reset or the port or reset the board). Add a
Seems there is one unintentional "or".
...
function for this.
Signed-off-by: Simon Glass sjg@chromium.org
Changes in v2:

Add function to drain the ns16550's FIFO

drivers/serial/ns16550.c |   11 +++++++++++
 include/ns16550.h        |    3 +++
 2 files changed, 14 insertions(+), 0 deletions(-)
I dislike this.  This is mostly dead code, enabled for eveybody where
it just increases the memory footprint for no use.
Also I do not understand why it would be needed at all.  We did not
have such a requirement for any system before, so I feel you must be
doing something wrong, or at least very exotic.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
Extreme feminine beauty is always disturbing.
        -- Spock, "The Cloud Minders", stardate 5818.4
------------------------------
Message: 34
Date: Sat, 10 Mar 2012 09:20:28 +0100
From: Wolfgang Denk wd@denx.de
Subject: Re: [U-Boot] [PATCH v2 1/4] ns16550: Add function to drain
        serial  output
To: Tom Warren TWarren@nvidia.com
Cc: U-Boot Mailing List u-boot@lists.denx.de
Message-ID: 20120310082028.0F896202C07@gemini.denx.de
Content-Type: text/plain; charset=UTF-8
Dear Tom Warren,
In message 5FBF8E85CA34454794F0F7ECBA79798F37971BC0CD@HQMAIL04.nvidia.com you wrote:
...
If no one objects, I'll apply this series, and Stephen's 'Makefile: fdt: Make the final build result be u-boot.bin' patch (which also works OK, BTW) to my previous pull request and resend to Albert.
I do object.  This affects common code.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
"On two occasions I have been  asked  [by  members  of  Parliament!],
'Pray,  Mr.  Babbage, if you put into the machine wrong figures, will
the right answers come out?' I am not able rightly to  apprehend  the
kind of confusion of ideas that could provoke such a question."
- Charles Babbage
------------------------------
Message: 35
Date: Sat, 10 Mar 2012 09:25:33 +0100
From: Wolfgang Denk wd@denx.de
Subject: Re: [U-Boot] pull request for u-boot-tegra/master
To: Albert ARIBAUD albert.u.boot@aribaud.net
Cc: U-Boot Mailing List u-boot@lists.denx.de, Stephen Warren
        swarren@nvidia.com, Tom Warren TWarren@nvidia.com
Message-ID: 20120310082533.D3252202C07@gemini.denx.de
Content-Type: text/plain; charset=UTF-8
Dear Albert,
In message 5FBF8E85CA34454794F0F7ECBA79798F37971BC102@HQMAIL04.nvidia.com Tom Warren wrote:
...
Please pull u-boot-tegra/master into arm master. Thanks!
Please do NOT pull this.
...
  ns16550: Add function to drain serial output
  Enable printf() console if pre-console putc() is available
  tegra: Implement pre-console putc() for fdt warning
  tegra: Enable pre-console putc() for Tegra boards

I'm not OK with these patches yet.   Also, they affect common code.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
Never underestimate the power of human stupidity  when  it  comes  to
using technology they don't understand.
------------------------------
Message: 36
Date: Sat, 10 Mar 2012 09:31:44 +0100
From: Wolfgang Denk wd@denx.de
Subject: Re: [U-Boot] DEVELOPER's MEETING
To: Fabio Estevam festevam@gmail.com
Cc: u-boot@lists.denx.de
Message-ID: 20120310083144.A54B8202C07@gemini.denx.de
Content-Type: text/plain; charset=UTF-8
Dear Fabio,
In message CAOMZO5BgTUYSH9MFSbFkZf4Dx8O-VeiUW46WErQgLa07_gGZHw@mail.gmail.com you wrote:
...
...
I was just thinking if this year's Libre Software Meeting (LSM - from
7th to 12th July in Geneva, Switzerland) would be a suitable event to
arrange a meeting of some U-Boot developers?
There were a number of reasons that made me looking at this:  Geneva is pretty
much central in Europe and easy to reach, and there are no other
interesting (at least to me) events around this time.
...
What about arranging the U-boot meeting at ELCE ?
https://events.linuxfoundation.org/events/embedded-linux-conference-europe
ELCE always manages to fall close to other events like trade shows.
For example this autumn's ELCE (November 5-7) kind of collides with
electronica 2012 in Munich (Nov 13-16).
But I'm open to suggestions / opinions.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
 The software required `Windows 95 or better', so I installed Linux.
------------------------------
Message: 37
Date: Sat, 10 Mar 2012 14:03:45 +0530
From: Sughosh Ganu urwithsughosh@gmail.com
Subject: Re: [U-Boot] [PATCH] arm: Don't use printf() in SPL builds
To: Simon Glass sjg@chromium.org
Cc: Tom Rini trini@ti.com, U-Boot Mailing List
        u-boot@lists.denx.de, Heiko Schocher hs@denx.de, Christian Riesch
        christian.riesch@omicron.at
Message-ID: 20120310083345.GA6861@Hardy
Content-Type: text/plain; charset="us-ascii"
hi Simon,
On Sat Mar 03, 2012 at 12:33:15PM -0800, Simon Glass wrote:
...
raise() likes to call printf() if it is available, but in SPL builds it
either is not available, or adds a large chunk to the resulting image
size.
So don't call it even if it is available.
This change reduces SPL size from 10KB to 6.3KB on hawkboard, for
example, using generic relocation.
Signed-off-by: Simon Glass sjg@chromium.org
arch/arm/lib/eabi_compat.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/arm/lib/eabi_compat.c b/arch/arm/lib/eabi_compat.c
index 2028dbd..44eebe0 100644
--- a/arch/arm/lib/eabi_compat.c
+++ b/arch/arm/lib/eabi_compat.c
@@ -13,7 +13,8 @@
int raise (int signum)
 {
-#if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)

/* Even if printf() is available, it's large. Punt it for SPL builds */



+#if !defined(CONFIG_SPL_BUILD)
      printf("raise: Signal # %d caught\n", signum);
 #endif
I tested with this change on hawkboard, and after applying this
   change, the spl size increase is 412 bytes against the 4k increase
   that we get with libcommon changes introduced. So this patch works
   fine.
Can you please check if libcommon support is needed for the
   cam_enc_4xx board -- your relocation patch series did not add
   CONFIG_SPL_LIBCOMMON_SUPPORT to this board. This will affect my
   patch to initialise gd and bd objects for hawkboard. Please let me
   know, and i will spin a patch accordingly.
-sughosh
------------------------------
Message: 38
Date: Sat, 10 Mar 2012 10:47:35 +0000 (UTC)
From: Balaji Sivakumar balajisk@hcl.com
Subject: Re: [U-Boot] Does U-boot supports Spansion S29GL512P NOR
        Flash?
To: u-boot@lists.denx.de
Message-ID: loom.20120310T113930-255@post.gmane.org
Content-Type: text/plain; charset=us-ascii
Stefan Roese <sr <at> denx.de> writes:
...
Hi Prakash,
On Friday 09 April 2010 07:26:37 prakash bedge wrote:
...
In U-boot I am not seeing the support for Spansion S29GL512P NOR flash.
This chip is CFI compliant so I believe the common CFI driver should work
with this chip.
Does U-boot supports S29GL512P NOR flash or I have to implement the
functionality to support S29GL512P?
If anyone has tried with S29GL512P NOR flash please share the experiecne.
This chip is currently supported by the common CFI NOR FLASH driver. So it
should just work for your board as well.
Cheers,
Stefan
--
DENX Software Engineering GmbH,      MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich,  Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-0 Fax: (+49)-8142-66989-80 Email: office <at> denx.de
Hi Stefan,
I am Balaji.  am using IMX6 base custom board. In my board am using S29GL01G
NOR Flash to srore u-boot and kernel. I understand from the data sheet this
NOR Flash is CFI based on. So i have added Configurations for CFI Flash driver.
Currently am loading the U-boot into DDR3 and able to excute U-boot test
commands. When i put flinfo , am getting "missing or unknow flash type" and
while loading the u-boot it is printing as " Unknown flash on BANK 1 - Size -
0MB". So am not sure what am missing here or i have to add anything extra in
teh config file. Please request you to check and provide your suggestion.
Thanks,
Balaji S
------------------------------
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[U-Boot] Error while Readin Flash Info(flinfo) in U-boot - Help

Balaji Sivakumar, ERS, HCLTech

Signed-off-by: Marek Vasut marex@denx.de

Signed-off-by: Simon Glass sjg@chromium.org

Signed-off-by: Simon Glass sjg@chromium.org

Signed-off-by: Simon Glass sjg@chromium.org