[PATCH 0/8] Introduce UCLASS_SOC

[Lokesh Vutla]

Hi Dave,

On 30/06/20 10:08 am, Dave Gerlach wrote:
> Hi,
> 
> This patch series introduces UCLASS_SOC to be used for SOC identification and
> attribute matching based on SoC ID info. This allows drivers to be
> provided for SoCs to retrieve SoC identifying information and also for matching
> device attributes for selecting SoC specific data. This is intended to be a
> counterpart to the soc-device framework in the Linux kernel.
> 
> I started with attempts to extend either UCLASS_CPU and UCLASS_BOARD to provide
> equivalent functionality, but UCLASS_CPU is focused specifically on processing
> units, of which multiples can exist heterogeneously in a system, and
> UCLASS_BOARD is focused on indentifying things connected to an SoC dynamically.
> Rather than try to force this into the existing UCLASS's, a new UCLASS seemed
> appropriate to provide same services as the soc-device functionality
> in the kernel.
> 
> This is useful for other device drivers that may need different
> parameters or quirks enabled depending on the specific device variant or
> revision in use.
> 
> Additionally, this introduces a user of UCLASS_SOC, soc_ti_k3, which provides
> SoC identifying information for K3 SoCs which can be used directly, for
> print_cpuinfo, and for selecting SoC specific data using soc_device_match.

Series looks good to me. Can you please re post the series addressing comments
from Tom and Simon?

Thanks and regards,
Lokesh

> 
> Regards,
> Dave
> 
> Dave Gerlach (8):
>   dm: soc: Introduce UCLASS_SOC for SOC ID and attribute matching
>   test: Add tests for SOC uclass
>   dm: soc: Introduce soc_ti_k3 driver for TI K3 SoCs
>   arm: dts: k3-am65-wakeup: Introduce chipid node
>   arm: dts: k3-j721e-mcu-wakeup: Introduce chipid node
>   configs: am65x_evm: Enable CONFIG_SOC_DEVICE and
>     CONFIG_SOC_DEVICE_TI_K3
>   configs: j721e_evm: Enable CONFIG_SOC_DEVICE and
>     CONFIG_SOC_DEVICE_TI_K3
>   arm: mach-k3: Use SOC driver for device identification
> 
>  arch/arm/dts/k3-am65-wakeup.dtsi              |   5 +
>  arch/arm/dts/k3-am654-base-board-u-boot.dtsi  |   4 +
>  .../k3-j721e-common-proc-board-u-boot.dtsi    |   4 +
>  arch/arm/dts/k3-j721e-mcu-wakeup.dtsi         |   5 +
>  arch/arm/mach-k3/common.c                     |  48 +++----
>  arch/arm/mach-k3/include/mach/hardware.h      |   1 -
>  arch/sandbox/dts/test.dts                     |   4 +
>  configs/am65x_evm_a53_defconfig               |   2 +
>  configs/am65x_evm_r5_defconfig                |   2 +
>  configs/am65x_hs_evm_a53_defconfig            |   2 +
>  configs/am65x_hs_evm_r5_defconfig             |   2 +
>  configs/j721e_evm_a72_defconfig               |   2 +
>  configs/j721e_evm_r5_defconfig                |   2 +
>  configs/j721e_hs_evm_a72_defconfig            |   2 +
>  configs/j721e_hs_evm_r5_defconfig             |   2 +
>  configs/sandbox64_defconfig                   |   1 +
>  configs/sandbox_defconfig                     |   1 +
>  configs/sandbox_flattree_defconfig            |   1 +
>  configs/sandbox_spl_defconfig                 |   1 +
>  drivers/soc/Kconfig                           |  16 +++
>  drivers/soc/Makefile                          |   3 +
>  drivers/soc/soc-uclass.c                      | 102 ++++++++++++++
>  drivers/soc/soc_sandbox.c                     |  56 ++++++++
>  drivers/soc/soc_ti_k3.c                       | 124 ++++++++++++++++
>  include/dm/uclass-id.h                        |   1 +
>  include/soc.h                                 | 132 ++++++++++++++++++
>  test/dm/Makefile                              |   1 +
>  test/dm/soc.c                                 | 120 ++++++++++++++++
>  28 files changed, 616 insertions(+), 30 deletions(-)
>  create mode 100644 drivers/soc/soc-uclass.c
>  create mode 100644 drivers/soc/soc_sandbox.c
>  create mode 100644 drivers/soc/soc_ti_k3.c
>  create mode 100644 include/soc.h
>  create mode 100644 test/dm/soc.c
>