[U-Boot] [PATCH v2 4/8] km/common: implement boardId HWkey checks as u-boot cmd
Wolfgang Denk
wd at denx.de
Thu May 5 00:11:41 CEST 2011
Dear Holger Brunck,
In message <02d1e3f265123ff0296b1c38b227f6d30393ee77.1304508448.git.holger.brunck at keymile.com> you wrote:
> From: Thomas Herzmann <thomas.herzmann at keymile.com>
>
> BoardId and HWKey are used to identify the HW class of a given board.
> The correct values are stored in the inventory eeprom. During creation
> time of a boot package the boardId and HWkey for the SW is stored in
> the default environment and burned into the flash. During boottime
> the values in the inventory and in the environment are compared to
> avoid starting of a SW which is not authorized for this board.
>
> Some bootpackages are allowed to run on a set of different boardId
> hwKey. In this case the environment variable boardIdListHex was added
> to the default environment. In this case the command iterates over the
> pair values and compares them with the values read from the inventory
> eeprom.
>
> The syntax of such a boardIdListHex value is e.g.: 158_1 159_1 159_2
>
> Signed-off-by: Thomas Herzmann <thomas.herzmann at keymile.com>
> Signed-off-by: Holger Brunck <holger.brunck at keymile.com>
> Signed-off-by: Valentin Longchamp <valentin.longchamp at keymile.com>
> Acked-by: Heiko Schocher <hs at denx.de>
> cc: Wolfgang Denk <wd at denx.de>
> cc: Detlev Zundel <dzu at denx.de>
> ---
> Changes for v2:
> - split up first large patch series to three independent smaller
> patch series
> - give the cmd a more precise name
> - rework the patch with inputs from W.Denk:
> - adapt and enhance commit msg
> - comment the code
> - add error handling
This patch has checkpatch warnings. Please fix.
...
> + if (!envbid || !envhwkey) {
> + /*
> + * BoardId/HWkey not available in the environment, so try the
> + * environment variable for BoardId/HWkey list
> + */
> + char *bidhwklist = getenv("boardIdListHex");
> + if (bidhwklist) {
Please insert a blank line after declarations.
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
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