From: Wolfgang Denk <wd@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] how does Linux call the function from u-boot?
Date: Thu, 31 Mar 2011 12:01:15 +0200 [thread overview]
Message-ID: <20110331100115.DF236EDFFD7@gemini.denx.de> (raw)
In-Reply-To: <E20D124831AF42E094DEFD4F59B45E9E@sywangPC>
Dear "sywang",
In message <E20D124831AF42E094DEFD4F59B45E9E@sywangPC> you wrote:
>
> how does Linux call the function from u-boot?
Simply: it does not.
When Linux starts running, U-Boot is gone and dead; nothing of it
survives the boot of Linux except for the parameters passed to the
Linux kernel.
Linux has no idea which boot loader has been used to start it, nor
can Linux call any functions from the boot loader.
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 at denx.de
Punishment becomes ineffective after a certain point. Men become in-
sensitive.
-- Eneg, "Patterns of Force", stardate 2534.7
next prev parent reply other threads:[~2011-03-31 10:01 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
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 [this message]
2011-03-31 23:59 ` sywang
2011-04-01 5:21 ` Wolfgang Denk
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