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authorPaul Barker <paul.barker.ct@bp.renesas.com>2023-09-01 15:28:59 +0100
committerTom Rini <trini@konsulko.com>2023-10-11 13:22:32 -0400
commitd1ca61ca7e7be080374c1d7e882c4d8aa7d7b70f (patch)
tree026816963ae8281434e3b2dad622884c3e631081 /env
parent31565bb0aa2d76b6941e96bcdbd204bae49ca828 (diff)
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env: Improve ENV_OFFSET help message
When reading Kconfig help messages to understand ENV_OFFSET and ENV_OFFSET_REDUND, developers may not realise that they need to also look at the chosen ENV_IS_IN_* options to see how the offsets will be interpreted. Signed-off-by: Paul Barker <paul.barker.ct@bp.renesas.com> Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'env')
-rw-r--r--env/Kconfig12
1 files changed, 11 insertions, 1 deletions
diff --git a/env/Kconfig b/env/Kconfig
index 67b819d..f5f0969 100644
--- a/env/Kconfig
+++ b/env/Kconfig
@@ -576,7 +576,12 @@ config ENV_OFFSET
default 0x260000 if ARCH_OMAP2PLUS
default 0x1080000 if MICROBLAZE && ENV_IS_IN_SPI_FLASH
help
- Offset from the start of the device (or partition)
+ Offset from the start of the device (or partition).
+
+ This offset may be interpreted differently depending on the chosen
+ ENV_IS_IN_* options. For example, for ENV_IS_IN_MMC=y, this offset may
+ be negative to indicate an offset backwards from the end of the
+ partition. See the relevant help messages for more details.
config ENV_OFFSET_REDUND
hex "Redundant environment offset"
@@ -588,6 +593,11 @@ config ENV_OFFSET_REDUND
Offset from the start of the device (or partition) of the redundant
environment location.
+ This offset may be interpreted differently depending on the chosen
+ ENV_IS_IN_* options. For example, for ENV_IS_IN_MMC=y, this offset may
+ be negative to indicate an offset backwards from the end of the
+ partition. See the relevant help messages for more details.
+
config ENV_SIZE
hex "Environment Size"
default 0x40000 if ENV_IS_IN_SPI_FLASH && ARCH_ZYNQMP