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From: Alexander Aring <alex.aring@gmail.com>
To: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: barebox@lists.infradead.org
Subject: Re: [RFC 2/2] dns325: initial support for D-Link DNS-325
Date: Thu, 26 Jun 2014 06:27:14 +0200	[thread overview]
Message-ID: <20140626042711.GA3858@omega> (raw)
In-Reply-To: <53A74FC0.7080206@gmail.com>

Hi,

On Sun, Jun 22, 2014 at 11:50:56PM +0200, Sebastian Hesselbarth wrote:
> On 06/22/2014 10:34 PM, Alexander Aring wrote:
> > This patch add a basic support for the D-Link DNS-325.
> > 
> > Currently only booting via uart with kwboot is supported. The barebox
> > kwboot utility doesn't work at the moment. Use kwboot utility from u-boot
> > instead.
> 
> Why does kwboot does not work? There is an issue with early Kirkwood's
> BootROM and UART boot mode. Just try over and over again. I also recall
> modifying the timeouts may help.
> 

I tried to change the timeouts and it works now. I take these timings from
u-boot. Is there any reason why these timings differs?

Datasheet says nothing about any delay while loop for sending bootmsg.


Here is my diff with the very small change:

diff --git a/scripts/kwboot.c b/scripts/kwboot.c
index e068660..bcb5972 100644
--- a/scripts/kwboot.c
+++ b/scripts/kwboot.c
@@ -34,8 +34,8 @@ static unsigned char kwboot_msg_debug[] = {
        0xDD, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77
 };
 
-#define KWBOOT_MSG_REQ_DELAY   1000 /* ms */
-#define KWBOOT_MSG_RSP_TIMEO   1000 /* ms */
+#define KWBOOT_MSG_REQ_DELAY   10 /* ms */
+#define KWBOOT_MSG_RSP_TIMEO   50 /* ms */
 
 /*
  * Xmodem Transfers



btw.:

Now I see that the internal ROM bootloader could also boot from SATA
device - this sounds interesting. I will try that next weekend.


Thanks for your great help Sebastian!

- Alex

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  parent reply	other threads:[~2014-06-26  4:33 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-22 20:34 [RFC 1/2] kirkwood: add support for booting via oftree probe Alexander Aring
2014-06-22 20:34 ` [RFC 2/2] dns325: initial support for D-Link DNS-325 Alexander Aring
2014-06-22 21:50   ` Sebastian Hesselbarth
2014-06-23  6:48     ` Alexander Aring
2014-06-26  4:27     ` Alexander Aring [this message]
2014-06-26  6:53       ` Sebastian Hesselbarth
2014-06-26  9:14         ` Alexander Aring
2014-06-24 11:54   ` Sebastian Hesselbarth
2014-06-25  6:57     ` Sascha Hauer
2014-06-22 21:45 ` [RFC 1/2] kirkwood: add support for booting via oftree probe Sebastian Hesselbarth
2014-06-23  6:51   ` Alexander Aring

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