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Diffstat (limited to 'tools/env/README')
| -rw-r--r-- | tools/env/README | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/tools/env/README b/tools/env/README deleted file mode 100644 index d8386f7f2d..0000000000 --- a/tools/env/README +++ /dev/null @@ -1,44 +0,0 @@ - -This is a demo implementation of a Linux command line tool to access -the U-Boot's environment variables. - -For the run-time utiltity configuration uncomment the line -#define CONFIG_FILE "/etc/fw_env.config" -in fw_env.h. - -See comments in the fw_env.config file for definitions for the -particular board. - -Configuration can also be done via #defines in the fw_env.h file. The -following lines are relevant: - -#define HAVE_REDUND /* For systems with 2 env sectors */ -#define DEVICE1_NAME "/dev/mtd1" -#define DEVICE2_NAME "/dev/mtd2" -#define DEVICE1_OFFSET 0x0000 -#define ENV1_SIZE 0x4000 -#define DEVICE1_ESIZE 0x4000 -#define DEVICE2_OFFSET 0x0000 -#define ENV2_SIZE 0x4000 -#define DEVICE2_ESIZE 0x4000 - -Current configuration matches the environment layout of the TRAB -board. - -Un-define HAVE_REDUND, if you want to use the utlities on a system -that does not have support for redundant environment enabled. -If HAVE_REDUND is undefined, DEVICE2_NAME is ignored, -as is ENV2_SIZE and DEVICE2_ESIZE. - -The DEVICEx_NAME constants define which MTD character devices are to -be used to access the environment. - -The DEVICEx_OFFSET constants define the environment offset within the -MTD character device. - -ENVx_SIZE defines the size in bytes taken by the environment, which -may be less then flash sector size, if the environment takes less -then 1 sector. - -DEVICEx_ESIZE defines the size of the first sector in the flash -partition where the environment resides. |