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From: Christopher Harvey <charvey@matrox.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 2/5] Added extra documentation about how the relocation address to RAM is picked for ARM.
Date: Mon, 4 Jul 2011 13:43:48 -0400	[thread overview]
Message-ID: <20110704174348.GC3016@harvey-pc.matrox.com> (raw)
In-Reply-To: <cover.1309799825.git.charvey@matrox.com>

Signed-off-by: Christopher Harvey <charvey@matrox.com>
---
 doc/README.arm-relocation |    9 ++++++++-
 1 files changed, 8 insertions(+), 1 deletions(-)

diff --git a/doc/README.arm-relocation b/doc/README.arm-relocation
index 5a9a2fb..954627d 100644
--- a/doc/README.arm-relocation
+++ b/doc/README.arm-relocation
@@ -22,7 +22,7 @@ At cpu level: modify linker file and add a relocation and fixup loop
 At board level:
 
 	dram_init(): bd pointer is now at this point not accessible, so only
-	detect the real dramsize, and store it in gd->ram_size. Bst detected
+	detect the real dramsize, and store it in gd->ram_size. Best detected
 	with get_ram_size().
 
 TODO:	move also dram initialization there on boards where it is possible.
@@ -38,6 +38,13 @@ At lib level:
 
 Boards which are not fixed to support relocation will be REMOVED!
 
+The code that picks the location in RAM for ARM can be found in the 
+arch/arm/lib/board.c file under the board_init_f function. 
+The postfix _f means executed from flash, and _r means from RAM. 
+The new location is picked with respect to the highest RAM address, and the
+exact final value depends heavily on compile time options. The source is the
+best documentation here. 
+
 -----------------------------------------------------------------------------
 
 For boards which boot from nand_spl, it is possible to save one copy
-- 
1.7.3.4

  parent reply	other threads:[~2011-07-04 17:43 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <cover.1309799825.git.charvey@matrox.com>
2011-07-04 17:43 ` [U-Boot] [PATCH 1/5] Added documentation for CONFIG_SYS_TEXT_BASE for ARM Christopher Harvey
2011-07-04 19:39   ` Wolfgang Denk
2011-07-04 17:43 ` Christopher Harvey [this message]
2011-07-04 19:43   ` [U-Boot] [PATCH 2/5] Added extra documentation about how the relocation address to RAM is picked " Wolfgang Denk
2011-07-06 20:58     ` Christopher Harvey
2011-07-06 21:29       ` Wolfgang Denk
2011-07-07 16:10   ` Albert ARIBAUD
2011-07-04 17:44 ` [U-Boot] [PATCH 3/5] Removed unused define, CONFIG_ARMV7 Christopher Harvey
2011-07-04 18:00   ` Jason
2011-07-04 18:46     ` Christopher Harvey
2011-07-04 19:47       ` Wolfgang Denk
2011-07-04 17:45 ` [U-Boot] [PATCH 4/5] Don't compile in large memory test function by default Christopher Harvey
2011-07-07 16:13   ` Albert ARIBAUD
2011-07-04 17:45 ` [U-Boot] [PATCH 5/5] Warn when the machine ID isn't passed to an ARM kernel and u-boot is compiled in debug mode. The kernel cannot boot without it Christopher Harvey
2011-07-04 18:08   ` Jason
2011-07-04 18:55     ` Christopher Harvey
2011-07-04 19:56       ` Wolfgang Denk
2011-07-04 20:13       ` Jason
2011-07-04 20:32         ` Christopher Harvey
2011-07-04 21:24           ` Jason
2011-07-05  7:21             ` Igor Grinberg
2011-07-05  7:31           ` Igor Grinberg
2011-07-04 19:53   ` Wolfgang Denk
2011-07-05  7:38   ` Igor Grinberg
2011-07-05 10:04     ` Wolfgang Denk
2011-07-05 10:46       ` Igor Grinberg

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