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From: Rogan Dawes <rogan@dawes.za.net>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 5/7] Support passing a Marvell-specific ATAG
Date: Fri, 18 Mar 2011 13:44:04 +0200	[thread overview]
Message-ID: <4D834584.5030409@dawes.za.net> (raw)
In-Reply-To: <F766E4F80769BD478052FB6533FA745D19F677C905@SC-VEXCH4.marvell.com>

On 2011/03/18 12:44 PM, Prafulla Wadaskar wrote:
> 
>> +/* Marvell specific information
>> + * requred for compatability with vendor kernels
>> + */
>> +#define ATAG_MV_UBOOT   0x41000403
> 
> What is a need for this ATAG?
> Open source Linux Kernel does not have any implementation to support this ATAG.
> Nor u-boot have any vendor specific ATAGs
> 
> NACK, if this is specific to support any custom implementation.
> 
> Regards..
> Prafulla . .

Hi Prafulla,

I was simply trying to mirror what the vendor U-Boot was passing to the
vendor kernel flashed on the device. My theory was that by comparing the
boot logs of the vendor U-Boot and vendor kernel, with the boot logs of
custom U-Boot and vendor kernel, I could make sure that my custom U-Boot
was doing the right thing. Including this ATAG allowed my to obtain
identical kernel boot logs.

That said, I'm happy to leave this portion out if it is not acceptable.
Especially if mainline kernel doesn't recognise that ATAG anyway.

Regards,

Rogan

  reply	other threads:[~2011-03-18 11:44 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-03-17 12:28 [U-Boot] Trying again: DNS323 Rogan Dawes
2011-03-18  8:04 ` [U-Boot] Working DNS323 config rogan at dawes.za.net
2011-03-18 19:34   ` Rogan Dawes
2011-03-18  8:04 ` [U-Boot] [PATCH 01/11] Orion5x: Correct DRAM bank detection rogan at dawes.za.net
2011-03-18  8:04 ` [U-Boot] [PATCH 02/11] IDE: Don't assume there are always two devices per bus rogan at dawes.za.net
2011-04-25 21:31   ` Wolfgang Denk
2011-03-18  8:04 ` [U-Boot] [PATCH 03/11] Align linebuf to avoid misaligned aliases of it rogan at dawes.za.net
2011-03-18  8:04 ` [U-Boot] [PATCH 04/11] Orion5x: bugfix: window size (mis)calculation rogan at dawes.za.net
2011-03-18 11:00   ` Prafulla Wadaskar
2011-03-18  8:04 ` [U-Boot] [PATCH 05/11] I2C: add Marvell TWSI simple driver rogan at dawes.za.net
2011-03-18  8:29   ` Heiko Schocher
2011-03-18  8:41     ` Rogan Dawes
2011-03-18  9:22       ` Heiko Schocher
2011-03-18 11:14         ` Rogan Dawes
2011-03-18 16:19       ` Wolfgang Denk
2011-03-18  8:04 ` [U-Boot] [PATCH 06/11] edminiv2: add I2C support using mvtwsi driver rogan at dawes.za.net
2011-03-18 10:57   ` Prafulla Wadaskar
2011-03-18 11:16     ` Rogan Dawes
2011-03-18  8:04 ` [U-Boot] [PATCH 07/11] Allow setting CONFIG_NR_DRAM_BANKS to a larger value rogan at dawes.za.net
2011-04-25 21:38   ` Wolfgang Denk
2011-03-18  8:04 ` [U-Boot] [PATCH 08/11] DNS323 CFI driver changes (hacks, testing only) rogan at dawes.za.net
2011-03-18  8:04 ` [U-Boot] [PATCH 09/11] Support passing a Marvell-specific ATAG rogan at dawes.za.net
2011-04-25 21:43   ` Wolfgang Denk
2011-03-18  8:04 ` [U-Boot] [PATCH 10/11] Copy the ramdisk from flash for the DNS323 rogan at dawes.za.net
2011-04-25 21:44   ` Wolfgang Denk
2011-04-26  7:09     ` Rogan Dawes
2011-03-18  8:09 ` [U-Boot] Non-working Relocated DNS323 config rogan at dawes.za.net
2011-03-18 10:53   ` Prafulla Wadaskar
2011-03-18 11:36     ` Rogan Dawes
2011-03-18  8:09 ` [U-Boot] [PATCH 1/7] Orion5x: Correct DRAM bank detection rogan at dawes.za.net
2011-03-18 10:52   ` Prafulla Wadaskar
2011-03-18 11:40     ` Rogan Dawes
2011-04-13 14:41   ` Prafulla Wadaskar
2011-03-18  8:09 ` [U-Boot] [PATCH 2/7] IDE: Don't assume there are always two devices per bus rogan at dawes.za.net
2011-03-18  8:09 ` [U-Boot] [PATCH 3/7] Allow setting CONFIG_NR_DRAM_BANKS to a larger value rogan at dawes.za.net
2011-03-18  8:10 ` [U-Boot] [PATCH 4/7] DNS323 CFI driver changes (hacks, testing only) rogan at dawes.za.net
2011-03-18  8:10 ` [U-Boot] [PATCH 5/7] Support passing a Marvell-specific ATAG rogan at dawes.za.net
2011-03-18 10:44   ` Prafulla Wadaskar
2011-03-18 11:44     ` Rogan Dawes [this message]
2011-03-18  8:10 ` [U-Boot] [PATCH 6/7] Copy the ramdisk from flash for the DNS323 rogan at dawes.za.net
2011-03-18 19:31 ` [U-Boot] [Working configuration, not for application 11/11] DNS323 configuration rogan at dawes.za.net
2011-03-18 19:39 ` [U-Boot] [non-working configuraton, post relocation 7/7] " rogan at dawes.za.net
2011-03-19  7:19   ` Heiko Schocher
2011-03-19 11:51     ` Rogan Dawes
2011-03-27 20:54       ` Rogan Dawes
2011-03-28  5:32         ` Heiko Schocher
2011-03-31  9:43         ` [U-Boot] how does Linux call the function from u-boot? sywang
2011-03-31 10:01           ` Wolfgang Denk
2011-03-31 23:59             ` sywang
2011-04-01  5:21               ` Wolfgang Denk

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