This adds support for the nvmem-cells properties cropping up in manyb
device trees. This is an easy way to load configuration, version
information, or calibration data from a non-volatile memory source. For
more information, refer to patch 6 ("misc: Add support for nvmem
cells").
For the moment I have only added some integration tests using the
ethernet addresses. This hits the main code paths (looking up nvmem
cells) but doesn't test writing. I can add a few stand-alone tests if
desired.
The patches are structured in the following manner:
1-5: These are general cleanups, and may be applied independently of
the rest of the series.
6-7: Add NVMEM support
8-11: Support reading ethernet addresses using the NVMEM API and add
some tests.
Changes in v2:
- Call the appropriate API functions directly from
nvmem_cell_(read|write). This means we can drop the nvmem_interface
machinery.
Sean Anderson (11):
sandbox: net: Remove fake-host-hwaddr
sandbox: Remove eth2addr from environment
test: eth: Add test for ethernet addresses
sandbox: Move some mac addresses to device tree
misc: i2c_eeprom: Make i2c_eeprom_write use a const buf
misc: Add support for nvmem cells
sandbox: Enable NVMEM
net: Add support for reading mac addresses from nvmem cells
test: Load mac address with i2c eeprom
test: Load mac address using RTC
test: Load mac address using misc device
MAINTAINERS | 7 ++
arch/sandbox/dts/sandbox.dts | 1 -
arch/sandbox/dts/sandbox64.dts | 1 -
arch/sandbox/dts/test.dts | 29 +++++-
board/sandbox/sandbox.env | 4 -
configs/sandbox64_defconfig | 1 +
configs/sandbox_defconfig | 1 +
configs/sandbox_flattree_defconfig | 1 +
configs/sandbox_noinst_defconfig | 1 +
configs/sandbox_spl_defconfig | 1 +
doc/api/index.rst | 1 +
doc/api/nvmem.rst | 7 ++
drivers/misc/Kconfig | 16 +++
drivers/misc/Makefile | 1 +
drivers/misc/i2c_eeprom.c | 3 +-
drivers/misc/i2c_eeprom_emul.c | 4 +
drivers/misc/misc_sandbox.c | 3 +
drivers/misc/nvmem.c | 142 +++++++++++++++++++++++++++
drivers/net/sandbox.c | 10 +-
drivers/rtc/i2c_rtc_emul.c | 10 ++
include/i2c_eeprom.h | 3 +-
include/nvmem.h | 151 +++++++++++++++++++++++++++++
net/eth-uclass.c | 13 ++-
test/dm/eth.c | 28 ++++++
24 files changed, 414 insertions(+), 25 deletions(-)
create mode 100644 doc/api/nvmem.rst
create mode 100644 drivers/misc/nvmem.c
create mode 100644 include/nvmem.h
--
2.35.1.1320.gc452695387.dirty
