On Tue, Mar 30, 2021 at 04:48:15PM +0300, Cristian Ciocaltea wrote:
> 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.
>
Is this the soc_id provided by the vendor bootloader (uboot)? If so, under
what basis it provides? I don't think the SoC has the provision for
soc_id based on HW parameters.
Thanks,
Mani
> 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
>
