On 06/05/2025 09:24, Varadarajan Narayanan wrote:
Allow SCSI to be able to store environment variables.
Signed-off-by: Varadarajan Narayanan <quic_var...@quicinc.com>
---
env/Kconfig | 15 +++++-
env/Makefile | 1 +
env/env.c | 3 ++
env/scsi.c | 115 +++++++++++++++++++++++++++++++++++++++++
include/env_internal.h | 1 +
5 files changed, 134 insertions(+), 1 deletion(-)
create mode 100644 env/scsi.c
diff --git a/env/Kconfig b/env/Kconfig
index 9f5ec44601e..9496975f212 100644
--- a/env/Kconfig
+++ b/env/Kconfig
@@ -74,7 +74,7 @@ config ENV_IS_DEFAULT
!ENV_IS_IN_MMC && !ENV_IS_IN_NAND && \
!ENV_IS_IN_NVRAM && !ENV_IS_IN_ONENAND && \
!ENV_IS_IN_REMOTE && !ENV_IS_IN_SPI_FLASH && \
- !ENV_IS_IN_UBI && !ENV_IS_IN_MTD
+ !ENV_IS_IN_UBI && !ENV_IS_IN_MTD && !ENV_IS_IN_SCSI
select ENV_IS_NOWHERE
config ENV_IS_NOWHERE
@@ -297,6 +297,13 @@ config ENV_IS_IN_NAND
Currently, CONFIG_ENV_OFFSET_REDUND is not supported when
using CONFIG_ENV_OFFSET_OOB.
+config ENV_IS_IN_SCSI
+ bool "Environment in an SCSI device"
+ depends on SCSI
+ help
+ Define this if you have an SCSI device which you want to use for the
+ environment.
+
config ENV_RANGE
hex "Length of the region in which the environment can be written"
depends on ENV_IS_IN_NAND
@@ -731,6 +738,12 @@ config ENV_MMC_USE_DT
The 2 defines CONFIG_ENV_OFFSET, CONFIG_ENV_OFFSET_REDUND
are not used as fallback.
+config SCSI_ENV_PART
This should be SCSI_ENV_PART_UUID
+ string "SCSI partition UUID for saving environment"
+ depends on ENV_IS_IN_SCSI
+ help
+ UUID of the SCSI partition that you want to store the environment in.
+
config USE_DEFAULT_ENV_FILE
bool "Create default environment from file"
<snip>
+};
diff --git a/include/env_internal.h b/include/env_internal.h
index ee939ba4293..75b46d0bcb0 100644
--- a/include/env_internal.h
+++ b/include/env_internal.h
@@ -115,6 +115,7 @@ enum env_location {
ENVL_SPI_FLASH,
ENVL_MTD,
ENVL_UBI,
+ ENVL_SCSI,
ENVL_NOWHERE,
ENVL_COUNT,
Wider question, what is specific to scsi here ? it could work with any block
device.
Neil
