u-boot.git/tools/env/fw_env.c, branch v2014.04

fw_env: correct writes to devices with small erase blocks

2014-03-12T21:04:29Z

Some NOR flash devices have a small erase block size. For example, the Micron N25Q512 can erase in 4K blocks. These devices expose a bug in fw_env.c where flash_write_buf() incorrectly calculates bytes written and attempts to write past the environment sectors. Luckily, a range check prevents any real damage, but this does cause fw_setenv to fail with an error. This change corrects the write length calculation. The bug was introduced with commit 56086921 from 2008 and only affects configurations where the erase block size is smaller than the total environment data size. Signed-off-by: Dustin Byford

fw_env: calculate default number of env sectors

2014-03-12T21:04:28Z

The assumed number of environment sectors (always 1) leads to an incorrect top_of_range calculation in fw.env.c when a flash device has an erase block size smaller than the environment data size (number of environment sectors > 1). This change updates the default number of environment sectors to at least cover the size of the environment. Also corrected a false statement about the number of sectors column in fw_env.config. Signed-off-by: Dustin Byford

fw_env: fix writing environment for mtd devices

2013-09-06T17:09:08Z

Signed-off-by: Oliver Metz Tested-by: Luka Perkov

fw_env: add redundant env support for MTD_ABSENT

2013-09-06T17:09:08Z

Signed-off-by: Oliver Metz Tested-by: Luka Perkov

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24T13:44:38Z

Signed-off-by: Wolfgang Denk [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini

env: Add redundant env support to UBI env

2013-04-11T19:52:55Z

Allow the user to specify two UBI volumes to use for the environment Signed-off-by: Joe Hershberger

env: Add support for UBI environment

2013-04-11T19:52:55Z

UBI is a better place for the environment on NAND devices because it handles wear-leveling and bad blocks. Gluebi is needed in Linux to access the env as an MTD partition. Signed-off-by: Joe Hershberger

env: Allow accessing non-mtd devices

2013-03-11T21:05:04Z

In certain cases, memory device is present as flat file or block device (via mmc or mtdblock layer). Do not attempt MTD operations against it. Signed-off-by: Lubomir Rintel

fw_env: fix type of len

2012-12-19T22:51:57Z

This variable is assigned by a size_t, and is printed that way, but is incorrectly declared as an int. Which means we get warnings: fw_env.c: In function 'fw_setenv': fw_env.c:409:5: warning: format '%zu' expects argument of type 'size_t', but argument 3 has type 'int' [-Wformat] Signed-off-by: Mike Frysinger Acked-by: Joe Hershberger

env: Handle write-once ethaddr and serial# generically

2012-12-13T18:46:57Z

Use the variable access flags to implement the protection for ethaddr and serial# instead of hard-coding them. Signed-off-by: Joe Hershberger