This patchset adds a socinfo driver which provides information about
Actions Semi Owl SoCs to user space via sysfs: machine, family, soc_id,
serial_number.
Please note the serial number is currently available only for the S500
SoC variant.
This has been tested on the S500 SoC based RoseapplePi SBC.
Thanks,
Cristi
Changes in v2:
- Exposed the memory range for reading the SoC serial number under
/reserved-memory DT node, according to Rob's review; as a consequence
added a new binding document (actions,owl-soc-serial.yaml) and updated
owl-socinfo.yaml
- Replaced the unportable usage of system_serial_{low,high} globals
with a public API to provide external access to SoC serial number
parts (e.g. Owl Ethernet MAC driver will use this to generate a
stable MAC address)
- Rebased patch series on v5.12-rc5
Cristian Ciocaltea (6):
dt-bindings: reserved-memory: Add Owl SoC serial number binding
dt-bindings: soc: actions: Add Actions Semi Owl socinfo binding
soc: actions: Add Actions Semi Owl socinfo driver
arm: dts: owl-s500: Add reserved-memory range for Owl SoC serial
number
arm: dts: owl-s500: Add socinfo support
MAINTAINERS: Add entries for Owl reserved-memory and socinfo bindings
.../actions,owl-soc-serial.yaml | 53 ++++++
.../bindings/soc/actions/owl-socinfo.yaml | 57 +++++++
MAINTAINERS | 2 +
arch/arm/boot/dts/owl-s500.dtsi | 13 +-
drivers/soc/actions/Kconfig | 8 +
drivers/soc/actions/Makefile | 1 +
drivers/soc/actions/owl-socinfo.c | 152 ++++++++++++++++++
include/linux/soc/actions/owl-serial-number.h | 20 +++
8 files changed, 305 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/reserved-memory/actions,owl-soc-serial.yaml
create mode 100644 Documentation/devicetree/bindings/soc/actions/owl-socinfo.yaml
create mode 100644 drivers/soc/actions/owl-socinfo.c
create mode 100644 include/linux/soc/actions/owl-serial-number.h
--
2.31.1
