[PATCH v6 00/27] Add support for sam9x7 SoC family

Varshini.Rajendran at microchip.com Varshini.Rajendran at microchip.com
Mon Jul 29 01:57:49 PDT 2024


On 29/07/24 1:47 pm, Andrei Simion - M76677 wrote:
> On 29.07.2024 09:56, Varshini Rajendran wrote:
>> This patch series adds support for the new SoC family - sam9x7.
>>   - The device tree, configs and drivers are added
>>   - Clock driver for sam9x7 is added
>>   - Support for basic peripherals is added
>>   - Target board SAM9X75 Curiosity is added
>>
>>   Changes in v6:
>>   --------------
>>
>>   - Addressed all the review comments in the patches
>>   - Picked up all Acked-by and Reviewed-by tags
>>   - Reverted the IRQ patch to that of version 3 of the same series
>>   - All the specific changes are captured in the corresponding patches
>>
>>   Changes in v5:
>>   --------------
>>
>>   - Addressed all the review comments in the patches
>>   - Picked up all Acked-by and Reviewed-by tags
>>   - Dropped applied patches from the series
>>   - Addressed the ABI breakage reported in the IRQ patch
>>   - All the specific changes are captured in the corresponding patches
>>
>>   Changes in v4:
>>   --------------
>>
>>   - Addressed all the review comments in the patches
>>   - Picked up all Acked-by and Reviewed-by tags
>>   - Dropped applied patches from the series
>>   - Added pwm node and related dt binding documentation
>>   - Added support for exporting some clocks to DT
>>   - Dropped USB related patches and changes. See NOTE.
>>   - All the specific changes are captured in the corresponding patches
>>
>>   NOTE: Owing to the discussion here
>>   https://lore.kernel.org/linux-devicetree/CAL_JsqJ9PrX6fj-EbffeJce09MXs=B7t+KS_kOinxaRx38=WxA@mail.gmail.com/
>>   the USB related changes are dropped from this series in order to enable
>>   us to work on the mentioned issues before adding new compatibles as
>>   said. The issues/warnings will be addressed in subsequent patches.
>>   After which the USB related support for sam9x7 SoCs will be added. Hope
>>   this works out fine.
>>
>>   Changes in v3:
>>   --------------
>>
>>   - Fixed the DT documentation errors pointed out in v2.
>>   - Dropped Acked-by tag in tcb DT doc patch as it had to be adapted
>>     according to sam9x7 correctly.
>>   - Picked by the previously missed tags.
>>   - Dropped this patch "dt-bindings: usb: generic-ehci: Document clock-names
>>     property" as the warning was not found while validating DT-schema for
>>     at91-sam9x75_curiosity.dtb.
>>   - Dropped redundant words in the commit message.
>>   - Fixed the CHECK_DTBS warnings validated against
>>     at91-sam9x75_curiosity.dtb.
>>   - Renamed dt nodes according to naming convention.
>>   - Dropped unwanted status property in dts.
>>   - Removed nodes that are not in use from the board dts.
>>   - Removed spi DT doc patch from the series as it was already applied
>>     and a fix patch was applied subsequently. Added a patch to remove the
>>     compatible to adapt sam9x7.
>>   - Added sam9x7 compatibles in usb dt documentation.
>>
>>
>>   Changes in v2:
>>   --------------
>>
>>   - Added sam9x7 specific compatibles in DT with fallbacks
>>   - Documented all the newly added DT compatible strings
>>   - Added device tree for the target board sam9x75 curiosity and
>>     documented the same in the DT bindings documentation
>>   - Removed the dt nodes that are not supported at the moment
>>   - Removed the configs added by previous version that are not supported
>>     at the moment
>>   - Fixed all the corrections in the commit message
>>   - Changed all the instances of copyright year to 2023
>>   - Added sam9x7 flag in PIT64B configuration
>>   - Moved macro definitions to header file
>>   - Added another divider in mck characteristics in the pmc driver
>>   - Fixed the memory leak in the pmc driver
>>   - Dropped patches that are no longer needed
>>   - Picked up Acked-by and Reviewed-by tags
>>
>>
>> Hari Prasath (1):
>>    irqchip/atmel-aic5: Add support for sam9x7 aic
>>
>> Varshini Rajendran (26):
>>    dt-bindings: atmel-sysreg: add sam9x7
>>    dt-bindings: mfd: syscon: add microchip's sam9x7 sfr
>>    dt-bindings: atmel-ssc: add microchip,sam9x7-ssc
>>    dt-bindings: serial: atmel,at91-usart: add compatible for sam9x7.
>>    dt-bindings: microchip: atmel,at91rm9200-tcb: add sam9x7 compatible
>>    ARM: at91: pm: add support for sam9x7 SoC family
>>    ARM: at91: pm: add sam9x7 SoC init config
>>    ARM: at91: add support in SoC driver for new sam9x7
>>    dt-bindings: clocks: atmel,at91sam9x5-sckc: add sam9x7
>>    dt-bindings: clocks: atmel,at91rm9200-pmc: add sam9x7 clock controller
>>    clk: at91: clk-sam9x60-pll: re-factor to support individual core freq
>>      outputs
>>    clk: at91: sam9x7: add support for HW PLL freq dividers
>>    clk: at91: sama7g5: move mux table macros to header file
>>    dt-bindings: clock: at91: Allow PLLs to be exported and referenced in
>>      DT
>>    clk: at91: sam9x7: add sam9x7 pmc driver
>>    dt-bindings: interrupt-controller: Add support for sam9x7 aic
>>    power: reset: at91-poweroff: lookup for proper pmc dt node for sam9x7
>>    power: reset: at91-reset: add reset support for sam9x7 SoC
>>    power: reset: at91-reset: add sdhwc support for sam9x7 SoC
>>    dt-bindings: reset: atmel,at91sam9260-reset: add sam9x7
>>    dt-bindings: power: reset: atmel,sama5d2-shdwc: add sam9x7
>>    ARM: at91: Kconfig: add config flag for SAM9X7 SoC
>>    ARM: configs: at91: enable config flags for sam9x7 SoC family
>>    ARM: dts: at91: sam9x7: add device tree for SoC
>>    dt-bindings: arm: add sam9x75 curiosity board
>>    ARM: dts: microchip: sam9x75_curiosity: add sam9x75 curiosity board
>>
>>   .../devicetree/bindings/arm/atmel-at91.yaml   |    6 +
>>   .../devicetree/bindings/arm/atmel-sysregs.txt |    6 +-
>>   .../bindings/clock/atmel,at91rm9200-pmc.yaml  |    2 +
>>   .../bindings/clock/atmel,at91sam9x5-sckc.yaml |    4 +-
>>   .../interrupt-controller/atmel,aic.yaml       |    1 +
>>   .../devicetree/bindings/mfd/syscon.yaml       |  188 +--
>>   .../devicetree/bindings/misc/atmel-ssc.txt    |    1 +
>>   .../power/reset/atmel,sama5d2-shdwc.yaml      |    3 +
>>   .../reset/atmel,at91sam9260-reset.yaml        |    4 +
>>   .../bindings/serial/atmel,at91-usart.yaml     |    9 +-
>>   .../soc/microchip/atmel,at91rm9200-tcb.yaml   |   20 +-
>>   arch/arm/boot/dts/microchip/Makefile          |    3 +
>>   .../dts/microchip/at91-sam9x75_curiosity.dts  |  312 +++++
>>   arch/arm/boot/dts/microchip/sam9x7.dtsi       | 1226 +++++++++++++++++
> 
> Hi,
> 
> Sorry for disturbing, I don't see the patch where you add arch/arm/boot/dts/microchip/sam9x7.dtsi
> In linux-next this file is not applied yet:
> :~$ find arch/arm/boot/dts/microchip | grep -i sam9x7.dtsi | wc -l
> 0
> 
Hi Andrei,

I don't quite get your query. I am answering in a presumption that you 
are enquiring about the sam9x7.dtsi file presence.

This file arch/arm/boot/dts/microchip/sam9x7.dtsi is being added in this 
very series by patch 25/27. It is not yet applied, hence will not be 
available in any of the upstream repos.

(P.S.: Sorry for the noise and the wide audience)

> Best regards,
> Andrei
> 
>>   arch/arm/configs/at91_dt_defconfig            |    1 +
>>   arch/arm/mach-at91/Kconfig                    |   22 +-
>>   arch/arm/mach-at91/Makefile                   |    1 +
>>   arch/arm/mach-at91/generic.h                  |    2 +
>>   arch/arm/mach-at91/pm.c                       |   29 +
>>   arch/arm/mach-at91/sam9x7.c                   |   33 +
>>   drivers/clk/at91/Makefile                     |    1 +
>>   drivers/clk/at91/clk-sam9x60-pll.c            |   42 +-
>>   drivers/clk/at91/pmc.h                        |   18 +
>>   drivers/clk/at91/sam9x60.c                    |    7 +
>>   drivers/clk/at91/sam9x7.c                     |  946 +++++++++++++
>>   drivers/clk/at91/sama7g5.c                    |   42 +-
>>   drivers/irqchip/irq-atmel-aic5.c              |   10 +
>>   drivers/power/reset/Kconfig                   |    4 +-
>>   drivers/power/reset/at91-sama5d2_shdwc.c      |    1 +
>>   drivers/soc/atmel/soc.c                       |   23 +
>>   drivers/soc/atmel/soc.h                       |    9 +
>>   include/dt-bindings/clock/at91.h              |    4 +
>>   32 files changed, 2840 insertions(+), 140 deletions(-)
>>   create mode 100644 arch/arm/boot/dts/microchip/at91-sam9x75_curiosity.dts
>>   create mode 100644 arch/arm/boot/dts/microchip/sam9x7.dtsi
>>   create mode 100644 arch/arm/mach-at91/sam9x7.c
>>   create mode 100644 drivers/clk/at91/sam9x7.c
>>

-- 
Thanks and Regards,
Varshini Rajendran.



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