* [U-Boot-Users] [PATCH] Document 'bootm_low' and 'bootm_size' environment variables
@ 2008-04-09 21:39 Bartlomiej Sieka
2008-04-09 22:08 ` Kumar Gala
0 siblings, 1 reply; 4+ messages in thread
From: Bartlomiej Sieka @ 2008-04-09 21:39 UTC (permalink / raw
To: u-boot
Signed-off-by: Bartlomiej Sieka <tur@semihalf.com>
---
Kumar, this patch pertains to your commit "[new uImage] Provide ability to
restrict region used for boot images", id d3f2fa0d -- could you review
and confirm that the documentation is OK? Thanks.
README | 19 ++++++++++++++++++-
1 files changed, 18 insertions(+), 1 deletions(-)
diff --git a/README b/README
index 5d059e7..a0dfe73 100644
--- a/README
+++ b/README
@@ -1995,7 +1995,10 @@ Configuration Settings:
Maximum size of memory mapped by the startup code of
the Linux kernel; all data that must be processed by
the Linux kernel (bd_info, boot arguments, eventually
- initrd image) must be put below this limit.
+ initrd image) must be put below this limit, unless
+ "bootm_low" enviroment variable is defined and non-zero.
+ In such case all data for the Linux kernel must be
+ between "bootm_low" and "bootm_low" + CFG_BOOTMAPSZ.
- CFG_MAX_FLASH_BANKS:
Max number of Flash memory banks
@@ -2733,6 +2736,20 @@ Some configuration options can be set using Environment Variables:
bootfile - Name of the image to load with TFTP
+ bootm_low - Memory range available for image processing in the bootm
+ command can be restricted. This variable is given as
+ a hexadecimal number and defines lowest address allowed
+ for use by the bootm command. See also "bootm_size"
+ environment variable. Address defined by "bootm_low" is
+ also the base of the initial memory mapping for the Linux
+ kernel -- see the descripton of CFG_BOOTMAPSZ.
+
+ bootm_size - Memory range available for image processing in the bootm
+ command can be restricted. This variable is given as
+ a hexadecimal number and defines the size of the region
+ allowed for use by the bootm command. See also "bootm_low"
+ environment variable.
+
autoload - if set to "no" (any string beginning with 'n'),
"bootp" will just load perform a lookup of the
configuration from the BOOTP server, but not try to
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [U-Boot-Users] [PATCH] Document 'bootm_low' and 'bootm_size' environment variables
2008-04-09 21:39 [U-Boot-Users] [PATCH] Document 'bootm_low' and 'bootm_size' environment variables Bartlomiej Sieka
@ 2008-04-09 22:08 ` Kumar Gala
2008-04-14 13:44 ` [U-Boot-Users] [PATCH] Boot-related documentation update Bartlomiej Sieka
0 siblings, 1 reply; 4+ messages in thread
From: Kumar Gala @ 2008-04-09 22:08 UTC (permalink / raw
To: u-boot
On Apr 9, 2008, at 4:39 PM, Bartlomiej Sieka wrote:
> Signed-off-by: Bartlomiej Sieka <tur@semihalf.com>
> ---
> Kumar, this patch pertains to your commit "[new uImage] Provide
> ability to
> restrict region used for boot images", id d3f2fa0d -- could you review
> and confirm that the documentation is OK? Thanks.
>
> README | 19 ++++++++++++++++++-
> 1 files changed, 18 insertions(+), 1 deletions(-)
>
> diff --git a/README b/README
> index 5d059e7..a0dfe73 100644
> --- a/README
> +++ b/README
> @@ -1995,7 +1995,10 @@ Configuration Settings:
> Maximum size of memory mapped by the startup code of
> the Linux kernel; all data that must be processed by
> the Linux kernel (bd_info, boot arguments, eventually
> - initrd image) must be put below this limit.
> + initrd image) must be put below this limit, unless
> + "bootm_low" enviroment variable is defined and non-zero.
> + In such case all data for the Linux kernel must be
> + between "bootm_low" and "bootm_low" + CFG_BOOTMAPSZ.
all data seems misleading since initrd doesn't have to be within
CFG_BOOTMAPSZ.
> - CFG_MAX_FLASH_BANKS:
> Max number of Flash memory banks
> @@ -2733,6 +2736,20 @@ Some configuration options can be set using
> Environment Variables:
>
> bootfile - Name of the image to load with TFTP
>
> + bootm_low - Memory range available for image processing in the
> bootm
> + command can be restricted. This variable is given as
> + a hexadecimal number and defines lowest address allowed
> + for use by the bootm command. See also "bootm_size"
> + environment variable. Address defined by "bootm_low" is
> + also the base of the initial memory mapping for the Linux
> + kernel -- see the descripton of CFG_BOOTMAPSZ.
>
> +
> + bootm_size - Memory range available for image processing in the
> bootm
> + command can be restricted. This variable is given as
> + a hexadecimal number and defines the size of the region
> + allowed for use by the bootm command. See also "bootm_low"
> + environment variable.
> +
these look fine.
- k
^ permalink raw reply [flat|nested] 4+ messages in thread
* [U-Boot-Users] [PATCH] Boot-related documentation update
2008-04-09 22:08 ` Kumar Gala
@ 2008-04-14 13:44 ` Bartlomiej Sieka
2008-04-18 7:54 ` Wolfgang Denk
0 siblings, 1 reply; 4+ messages in thread
From: Bartlomiej Sieka @ 2008-04-14 13:44 UTC (permalink / raw
To: u-boot
- document 'bootm_low' and 'bootm_size' environment variables
- update inaccurate CFG_BOOTMAPSZ entry
Signed-off-by: Bartlomiej Sieka <tur@semihalf.com>
---
Addressed comment by Kumar, changed patch description accordingly.
README | 21 +++++++++++++++++++--
1 files changed, 19 insertions(+), 2 deletions(-)
diff --git a/README b/README
index 5d059e7..63b1417 100644
--- a/README
+++ b/README
@@ -1994,8 +1994,11 @@ Configuration Settings:
- CFG_BOOTMAPSZ:
Maximum size of memory mapped by the startup code of
the Linux kernel; all data that must be processed by
- the Linux kernel (bd_info, boot arguments, eventually
- initrd image) must be put below this limit.
+ the Linux kernel (bd_info, boot arguments, FDT blob if
+ used) must be put below this limit, unless "bootm_low"
+ enviroment variable is defined and non-zero. In such case
+ all data for the Linux kernel must be between "bootm_low"
+ and "bootm_low" + CFG_BOOTMAPSZ.
- CFG_MAX_FLASH_BANKS:
Max number of Flash memory banks
@@ -2733,6 +2736,20 @@ Some configuration options can be set using Environment Variables:
bootfile - Name of the image to load with TFTP
+ bootm_low - Memory range available for image processing in the bootm
+ command can be restricted. This variable is given as
+ a hexadecimal number and defines lowest address allowed
+ for use by the bootm command. See also "bootm_size"
+ environment variable. Address defined by "bootm_low" is
+ also the base of the initial memory mapping for the Linux
+ kernel -- see the descripton of CFG_BOOTMAPSZ.
+
+ bootm_size - Memory range available for image processing in the bootm
+ command can be restricted. This variable is given as
+ a hexadecimal number and defines the size of the region
+ allowed for use by the bootm command. See also "bootm_low"
+ environment variable.
+
autoload - if set to "no" (any string beginning with 'n'),
"bootp" will just load perform a lookup of the
configuration from the BOOTP server, but not try to
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [U-Boot-Users] [PATCH] Boot-related documentation update
2008-04-14 13:44 ` [U-Boot-Users] [PATCH] Boot-related documentation update Bartlomiej Sieka
@ 2008-04-18 7:54 ` Wolfgang Denk
0 siblings, 0 replies; 4+ messages in thread
From: Wolfgang Denk @ 2008-04-18 7:54 UTC (permalink / raw
To: u-boot
In message <20080414134306.15603.84966.stgit@pollux.denx.de> you wrote:
> - document 'bootm_low' and 'bootm_size' environment variables
> - update inaccurate CFG_BOOTMAPSZ entry
>
> Signed-off-by: Bartlomiej Sieka <tur@semihalf.com>
> ---
> Addressed comment by Kumar, changed patch description accordingly.
>
> README | 21 +++++++++++++++++++--
> 1 files changed, 19 insertions(+), 2 deletions(-)
Applied, thanks.
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
It [being a Vulcan] means to adopt a philosophy, a way of life which
is logical and beneficial. We cannot disregard that philosophy merely
for personal gain, no matter how important that gain might be.
-- Spock, "Journey to Babel", stardate 3842.4
^ permalink raw reply [flat|nested] 4+ messages in thread
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2008-04-09 21:39 [U-Boot-Users] [PATCH] Document 'bootm_low' and 'bootm_size' environment variables Bartlomiej Sieka
2008-04-09 22:08 ` Kumar Gala
2008-04-14 13:44 ` [U-Boot-Users] [PATCH] Boot-related documentation update Bartlomiej Sieka
2008-04-18 7:54 ` Wolfgang Denk
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